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10061550 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061551 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061552 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061553 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061554 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061555 | <NME> AvaloniaEdit.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<WarningsNotAsErrors>0612,0618</WarningsNotAsErrors>
<PackageId>Avalonia.AvaloniaEdit</PackageId>
</PropertyGroup>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
<None Remove="Search\Assets\CaseSensitive.png" />
<None Remove="Search\Assets\CompleteWord.png" />
<None Remove="Search\Assets\FindNext.png" />
<None Remove="Search\Assets\FindPrevious.png" />
<None Remove="Search\Assets\RegularExpression.png" />
<None Remove="Search\Assets\ReplaceAll.png" />
<None Remove="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<EmbeddedResource Include="Search\Assets\CaseSensitive.png" />
<EmbeddedResource Include="Search\Assets\CompleteWord.png" />
<EmbeddedResource Include="Search\Assets\FindNext.png" />
<EmbeddedResource Include="Search\Assets\FindPrevious.png" />
<EmbeddedResource Include="Search\Assets\RegularExpression.png" />
<EmbeddedResource Include="Search\Assets\ReplaceAll.png" />
<EmbeddedResource Include="Search\Assets\ReplaceNext.png" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="Avalonia" Version="$(AvaloniaVersion)" />
<PackageReference Include="System.Collections.Immutable" Version="1.6.0" />
</ItemGroup>
<ItemGroup>
<Compile Update="SR.Designer.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>SR.resx</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<EmbeddedResource Update="SR.resx">
<Generator>PublicResXFileCodeGenerator</Generator>
<LastGenOutput>SR.Designer.cs</LastGenOutput>
</EmbeddedResource>
</ItemGroup>
<Target Name="ChangeAliasesOfSystemDrawing" BeforeTargets="FindReferenceAssembliesForReferences;ResolveReferences">
<ItemGroup>
<ReferencePath Condition="'%(FileName)' == 'Splat'">
<Aliases>SystemDrawing</Aliases>
</ReferencePath>
</ItemGroup>
</Target>
</Project>
<MSG> update to avalonia release candidate.
<DFF> @@ -9,7 +9,7 @@
</ItemGroup>
<ItemGroup>
- <PackageReference Include="Avalonia" Version="0.5.2-build4525-alpha" />
+ <PackageReference Include="Avalonia" Version="0.5.2-build4554-alpha" />
<PackageReference Include="System.Collections.Immutable" Version="1.4.0" />
<PackageReference Include="System.Xml.ReaderWriter" Version="4.3.0" />
</ItemGroup>
| 1 | update to avalonia release candidate. | 1 | .csproj | csproj | mit | AvaloniaUI/AvaloniaEdit |
10061556 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061557 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061558 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061559 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061560 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061561 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061562 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061563 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061564 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061565 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061566 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061567 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061568 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061569 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061570 | <NME> TextEditorModel.cs
<BEF> using System;
using Avalonia.Threading;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using TextMateSharp.Model;
namespace AvaloniaEdit.TextMate
{
public class TextEditorModel : AbstractLineList, IDisposable
{
private readonly TextDocument _document;
private readonly TextView _textView;
private DocumentSnapshot _documentSnapshot;
private Action<Exception> _exceptionHandler;
private InvalidLineRange _invalidRange;
public DocumentSnapshot DocumentSnapshot { get { return _documentSnapshot; } }
internal InvalidLineRange InvalidRange { get { return _invalidRange; } }
public TextEditorModel(TextView textView, TextDocument document, Action<Exception> exceptionHandler)
{
_textView = textView;
_document = document;
_exceptionHandler = exceptionHandler;
_documentSnapshot = new DocumentSnapshot(_document);
for (int i = 0; i < _document.LineCount; i++)
AddLine(i);
_document.Changing += DocumentOnChanging;
_document.Changed += DocumentOnChanged;
_document.UpdateFinished += DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged += TextView_ScrollOffsetChanged;
}
public override void Dispose()
{
_document.Changing -= DocumentOnChanging;
_document.Changed -= DocumentOnChanged;
_document.UpdateFinished -= DocumentOnUpdateFinished;
_textView.ScrollOffsetChanged -= TextView_ScrollOffsetChanged;
}
public override void UpdateLine(int lineIndex) { }
public void InvalidateViewPortLines()
{
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
InvalidateLineRange(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}
public override int GetNumberOfLines()
{
return _documentSnapshot.LineCount;
}
public override string GetLineText(int lineIndex)
{
return _documentSnapshot.GetLineText(lineIndex);
}
public override int GetLineLength(int lineIndex)
{
return _documentSnapshot.GetLineLength(lineIndex);
}
private void TextView_ScrollOffsetChanged(object sender, EventArgs e)
{
try
{
TokenizeViewPort();
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanging(object sender, DocumentChangeEventArgs e)
{
try
{
if (e.RemovalLength > 0)
{
var startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
var endLine = _document.GetLineByOffset(e.Offset + e.RemovalLength).LineNumber - 1;
for (int i = endLine; i > startLine; i--)
{
RemoveLine(i);
}
_documentSnapshot.RemoveLines(startLine, endLine);
}
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void DocumentOnChanged(object sender, DocumentChangeEventArgs e)
{
try
{
int startLine = _document.GetLineByOffset(e.Offset).LineNumber - 1;
int endLine = startLine;
if (e.InsertionLength > 0)
{
endLine = _document.GetLineByOffset(e.Offset + e.InsertionLength).LineNumber - 1;
for (int i = startLine; i < endLine; i++)
{
AddLine(i);
}
}
_documentSnapshot.Update(e);
if (startLine == 0)
{
SetInvalidRange(startLine, endLine);
return;
}
// some grammars (JSON, csharp, ...)
// need to invalidate the previous line too
SetInvalidRange(startLine - 1, endLine);
}
catch (Exception ex)
{
_exceptionHandler?.Invoke(ex);
}
}
private void SetInvalidRange(int startLine, int endLine)
{
if (!_document.IsInUpdate)
{
InvalidateLineRange(startLine, endLine);
return;
}
// we're in a document change, store the max invalid range
if (_invalidRange == null)
{
_invalidRange = new InvalidLineRange(startLine, endLine);
return;
}
_invalidRange.SetInvalidRange(startLine, endLine);
}
void DocumentOnUpdateFinished(object sender, EventArgs e)
{
if (_invalidRange == null)
return;
try
{
}
UpdateSnapshot();
InvalidateLine(startLine);
}
catch (Exception ex)
if (!_textView.VisualLinesValid ||
_textView.VisualLines.Count == 0)
return;
ForceTokenization(
_textView.VisualLines[0].FirstDocumentLine.LineNumber - 1,
_textView.VisualLines[_textView.VisualLines.Count - 1].LastDocumentLine.LineNumber - 1);
}, DispatcherPriority.MinValue);
}
internal class InvalidLineRange
{
internal int StartLine { get; private set; }
internal int EndLine { get; private set; }
internal InvalidLineRange(int startLine, int endLine)
{
StartLine = startLine;
EndLine = endLine;
}
internal void SetInvalidRange(int startLine, int endLine)
{
if (startLine < StartLine)
StartLine = startLine;
if (endLine > EndLine)
EndLine = endLine;
}
}
}
}
<MSG> Invalidate current and previous line
some grammars (JSON, csharp, ...), need to invalidate previous lines. Otherwise some tokens are not revalidate properly.
Examples:
- press enter after the class bracket in a csharp file.
- press enter to add a new property to a JSON fiie.
<DFF> @@ -171,6 +171,12 @@ namespace AvaloniaEdit.TextMate
}
UpdateSnapshot();
+
+ // invalidate current and previous line
+ // some grammars (JSON, csharp, ...)
+ // need to invalidate previous lines
+ if (startLine - 1 >= 0)
+ InvalidateLine(startLine - 1);
InvalidateLine(startLine);
}
catch (Exception ex)
| 6 | Invalidate current and previous line | 0 | .cs | TextMate/TextEditorModel | mit | AvaloniaUI/AvaloniaEdit |
10061571 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061572 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061573 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061574 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061575 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061576 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061577 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061578 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061579 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061580 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061581 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061582 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061583 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061584 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061585 | <NME> SearchCommands.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using Avalonia.Input;
using Avalonia.Threading;
using AvaloniaEdit.Editing;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Search commands for AvalonEdit.
/// </summary>
public static class SearchCommands
{
/// <summary>
/// Finds the next occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindNext = new RoutedCommand(nameof(FindNext), new KeyGesture(Key.F3));
/// <summary>
/// Finds the previous occurrence in the file.
/// </summary>
public static readonly RoutedCommand FindPrevious = new RoutedCommand(nameof(FindPrevious), new KeyGesture(Key.F3, KeyModifiers.Shift));
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public static readonly RoutedCommand CloseSearchPanel = new RoutedCommand(nameof(CloseSearchPanel), new KeyGesture(Key.Escape));
/// <summary>
/// Replaces the next occurrence in the document.
/// </summary>
public static readonly RoutedCommand ReplaceNext = new RoutedCommand(nameof(ReplaceNext), new KeyGesture(Key.R, KeyModifiers.Alt));
/// <summary>
/// Replaces all the occurrences in the document.
/// </summary>
public static readonly RoutedCommand ReplaceAll = new RoutedCommand(nameof(ReplaceAll), new KeyGesture(Key.A, KeyModifiers.Alt));
}
/// <summary>
/// TextAreaInputHandler that registers all search-related commands.
/// </summary>
internal class SearchInputHandler : TextAreaInputHandler
{
public SearchInputHandler(TextArea textArea, SearchPanel panel)
: base(textArea)
{
RegisterCommands(CommandBindings);
_panel = panel;
}
internal void RegisterGlobalCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
}
private void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
commandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, ExecuteFind));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, ExecuteReplace));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, ExecuteFindNext, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, ExecuteFindPrevious, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, ExecuteReplaceNext, CanExecuteWithOpenSearchPanel));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, ExecuteReplaceAll, CanExecuteWithOpenSearchPanel));
commandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, ExecuteCloseSearchPanel, CanExecuteWithOpenSearchPanel));
}
private readonly SearchPanel _panel;
private void ExecuteFind(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: false);
}
private void ExecuteReplace(object sender, ExecutedRoutedEventArgs e)
{
FindOrReplace(isReplaceMode: true);
}
private void FindOrReplace(bool isReplaceMode)
{
_panel.IsReplaceMode = isReplaceMode;
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
{
if (_panel.IsClosed)
{
e.CanExecute = false;
// Continue routing so that the key gesture can be consumed by another component.
//e.ContinueRouting = true;
}
else
{
e.CanExecute = true;
e.Handled = true;
}
}
private void ExecuteFindNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindNext();
e.Handled = true;
}
}
private void ExecuteFindPrevious(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.FindPrevious();
e.Handled = true;
}
}
private void ExecuteReplaceNext(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceNext();
e.Handled = true;
}
}
private void ExecuteReplaceAll(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.ReplaceAll();
e.Handled = true;
}
}
private void ExecuteCloseSearchPanel(object sender, ExecutedRoutedEventArgs e)
{
if (!_panel.IsClosed)
{
_panel.Close();
e.Handled = true;
}
}
/// <summary>
/// Fired when SearchOptions are modified inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged
{
add => _panel.SearchOptionsChanged += value;
remove => _panel.SearchOptionsChanged -= value;
}
}
}
<MSG> Merge pull request #65 from AvaloniaUI/fixes/update-avalonia
Fixes/update avalonia
<DFF> @@ -104,7 +104,7 @@ namespace AvaloniaEdit.Search
_panel.Open();
if (!(TextArea.Selection.IsEmpty || TextArea.Selection.IsMultiline))
_panel.SearchPattern = TextArea.Selection.GetText();
- Dispatcher.UIThread.InvokeAsync(_panel.Reactivate, DispatcherPriority.Input);
+ Dispatcher.UIThread.Post(_panel.Reactivate, DispatcherPriority.Input);
}
private void CanExecuteWithOpenSearchPanel(object sender, CanExecuteRoutedEventArgs e)
| 1 | Merge pull request #65 from AvaloniaUI/fixes/update-avalonia | 1 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061586 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061587 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061588 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061589 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061590 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061591 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061592 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061593 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061594 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061595 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061596 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061597 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061598 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061599 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061600 | <NME> CaretNavigationCommandHandler.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Diagnostics;
using Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Utils;
using Avalonia.Input;
using Avalonia.Input.Platform;
using Avalonia.Media.TextFormatting;
using LogicalDirection = AvaloniaEdit.Document.LogicalDirection;
namespace AvaloniaEdit.Editing
{
internal enum CaretMovementType
{
None,
CharLeft,
CharRight,
Backspace,
WordLeft,
WordRight,
LineUp,
LineDown,
PageUp,
PageDown,
LineStart,
LineEnd,
DocumentStart,
DocumentEnd
}
internal static class CaretNavigationCommandHandler
{
/// <summary>
/// Creates a new <see cref="TextAreaInputHandler"/> for the text area.
/// </summary>
public static TextAreaInputHandler Create(TextArea textArea)
{
var handler = new TextAreaInputHandler(textArea);
handler.CommandBindings.AddRange(CommandBindings);
handler.KeyBindings.AddRange(KeyBindings);
return handler;
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
private static void AddBinding(RoutedCommand command, KeyGesture gesture, EventHandler<ExecutedRoutedEventArgs> handler)
{
AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, gesture));
}
static CaretNavigationCommandHandler()
{
var keymap = AvaloniaLocator.Current.GetService<PlatformHotkeyConfiguration>();
AddBinding(EditingCommands.MoveLeftByCharacter, KeyModifiers.None, Key.Left, OnMoveCaret(CaretMovementType.CharLeft));
AddBinding(EditingCommands.SelectLeftByCharacter, keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.CharLeft));
AddBinding(RectangleSelection.BoxSelectLeftByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.CharLeft));
AddBinding(EditingCommands.MoveRightByCharacter, KeyModifiers.None, Key.Right, OnMoveCaret(CaretMovementType.CharRight));
AddBinding(EditingCommands.SelectRightByCharacter, keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.CharRight));
AddBinding(RectangleSelection.BoxSelectRightByCharacter, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.CharRight));
AddBinding(EditingCommands.MoveLeftByWord, keymap.WholeWordTextActionModifiers, Key.Left, OnMoveCaret(CaretMovementType.WordLeft));
AddBinding(EditingCommands.SelectLeftByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Left, OnMoveCaretExtendSelection(CaretMovementType.WordLeft));
AddBinding(RectangleSelection.BoxSelectLeftByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Left, OnMoveCaretBoxSelection(CaretMovementType.WordLeft));
AddBinding(EditingCommands.MoveRightByWord, keymap.WholeWordTextActionModifiers, Key.Right, OnMoveCaret(CaretMovementType.WordRight));
AddBinding(EditingCommands.SelectRightByWord, keymap.WholeWordTextActionModifiers | keymap.SelectionModifiers, Key.Right, OnMoveCaretExtendSelection(CaretMovementType.WordRight));
AddBinding(RectangleSelection.BoxSelectRightByWord, keymap.WholeWordTextActionModifiers | KeyModifiers.Alt | keymap.SelectionModifiers, Key.Right, OnMoveCaretBoxSelection(CaretMovementType.WordRight));
AddBinding(EditingCommands.MoveUpByLine, KeyModifiers.None, Key.Up, OnMoveCaret(CaretMovementType.LineUp));
AddBinding(EditingCommands.SelectUpByLine, keymap.SelectionModifiers, Key.Up, OnMoveCaretExtendSelection(CaretMovementType.LineUp));
AddBinding(RectangleSelection.BoxSelectUpByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Up, OnMoveCaretBoxSelection(CaretMovementType.LineUp));
AddBinding(EditingCommands.MoveDownByLine, KeyModifiers.None, Key.Down, OnMoveCaret(CaretMovementType.LineDown));
AddBinding(EditingCommands.SelectDownByLine, keymap.SelectionModifiers, Key.Down, OnMoveCaretExtendSelection(CaretMovementType.LineDown));
AddBinding(RectangleSelection.BoxSelectDownByLine, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Down, OnMoveCaretBoxSelection(CaretMovementType.LineDown));
AddBinding(EditingCommands.MoveDownByPage, KeyModifiers.None, Key.PageDown, OnMoveCaret(CaretMovementType.PageDown));
AddBinding(EditingCommands.SelectDownByPage, keymap.SelectionModifiers, Key.PageDown, OnMoveCaretExtendSelection(CaretMovementType.PageDown));
AddBinding(EditingCommands.MoveUpByPage, KeyModifiers.None, Key.PageUp, OnMoveCaret(CaretMovementType.PageUp));
AddBinding(EditingCommands.SelectUpByPage, keymap.SelectionModifiers, Key.PageUp, OnMoveCaretExtendSelection(CaretMovementType.PageUp));
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
AddBinding(EditingCommands.SelectToLineEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.LineEnd));
AddBinding(RectangleSelection.BoxSelectToLineStart, KeyModifiers.Alt | keymap.SelectionModifiers, Key.Home, OnMoveCaretBoxSelection(CaretMovementType.LineStart));
AddBinding(RectangleSelection.BoxSelectToLineEnd, KeyModifiers.Alt | keymap.SelectionModifiers, Key.End, OnMoveCaretBoxSelection(CaretMovementType.LineEnd));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocument)
AddBinding(EditingCommands.MoveToDocumentStart, keyGesture, OnMoveCaret(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheStartOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentStart, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentStart));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocument)
AddBinding(EditingCommands.MoveToDocumentEnd, keyGesture, OnMoveCaret(CaretMovementType.DocumentEnd));
foreach (var keyGesture in keymap.MoveCursorToTheEndOfDocumentWithSelection)
AddBinding(EditingCommands.SelectToDocumentEnd, keyGesture, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.Caret.Offset = textArea.Document.TextLength;
textArea.Selection = Selection.Create(textArea, 0, textArea.Document.TextLength);
}
}
private static TextArea GetTextArea(object target)
{
return target as TextArea;
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaret(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
textArea.ClearSelection();
MoveCaret(textArea, direction);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretExtendSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
private static EventHandler<ExecutedRoutedEventArgs> OnMoveCaretBoxSelection(CaretMovementType direction)
{
return (target, args) =>
{
var textArea = GetTextArea(target);
if (textArea?.Document != null)
{
args.Handled = true;
// First, convert the selection into a rectangle selection
// (this is required so that virtual space gets enabled for the caret movement)
if (textArea.Options.EnableRectangularSelection && !(textArea.Selection is RectangleSelection))
{
textArea.Selection = textArea.Selection.IsEmpty
? new RectangleSelection(textArea, textArea.Caret.Position, textArea.Caret.Position)
: new RectangleSelection(textArea, textArea.Selection.StartPosition,
textArea.Caret.Position);
}
// Now move the caret and extend the selection
var oldPosition = textArea.Caret.Position;
MoveCaret(textArea, direction);
textArea.Selection = textArea.Selection.StartSelectionOrSetEndpoint(oldPosition, textArea.Caret.Position);
textArea.Caret.BringCaretToView();
}
};
}
#region Caret movement
internal static void MoveCaret(TextArea textArea, CaretMovementType direction)
{
var desiredXPos = textArea.Caret.DesiredXPos;
textArea.Caret.Position = GetNewCaretPosition(textArea.TextView, textArea.Caret.Position, direction, textArea.Selection.EnableVirtualSpace, ref desiredXPos);
textArea.Caret.DesiredXPos = desiredXPos;
}
internal static TextViewPosition GetNewCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, bool enableVirtualSpace, ref double desiredXPos)
{
switch (direction)
{
case CaretMovementType.None:
return caretPosition;
case CaretMovementType.DocumentStart:
desiredXPos = double.NaN;
return new TextViewPosition(0, 0);
case CaretMovementType.DocumentEnd:
desiredXPos = double.NaN;
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
var caretLine = textView.Document.GetLineByNumber(caretPosition.Line);
var visualLine = textView.GetOrConstructVisualLine(caretLine);
var textLine = visualLine.GetTextLine(caretPosition.VisualColumn, caretPosition.IsAtEndOfLine);
switch (direction)
{
case CaretMovementType.CharLeft:
desiredXPos = double.NaN;
// do not move caret to previous line in virtual space
if (caretPosition.VisualColumn == 0 && enableVirtualSpace)
return caretPosition;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.Backspace:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.EveryCodepoint, enableVirtualSpace);
case CaretMovementType.CharRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.Normal, enableVirtualSpace);
case CaretMovementType.WordLeft:
desiredXPos = double.NaN;
return GetPrevCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.WordRight:
desiredXPos = double.NaN;
return GetNextCaretPosition(textView, caretPosition, visualLine, CaretPositioningMode.WordStart, enableVirtualSpace);
case CaretMovementType.LineUp:
case CaretMovementType.LineDown:
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
return GetUpDownCaretPosition(textView, caretPosition, direction, visualLine, textLine, enableVirtualSpace, ref desiredXPos);
case CaretMovementType.LineStart:
desiredXPos = double.NaN;
return GetStartOfLineCaretPosition(caretPosition.VisualColumn, visualLine, textLine, enableVirtualSpace);
case CaretMovementType.LineEnd:
desiredXPos = double.NaN;
return GetEndOfLineCaretPosition(visualLine, textLine);
default:
throw new NotSupportedException(direction.ToString());
}
}
#endregion
#region Home/End
private static TextViewPosition GetStartOfLineCaretPosition(int oldVisualColumn, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine);
if (newVisualCol == 0)
newVisualCol = visualLine.GetNextCaretPosition(newVisualCol - 1, LogicalDirection.Forward, CaretPositioningMode.WordStart, enableVirtualSpace);
if (newVisualCol < 0)
throw ThrowUtil.NoValidCaretPosition();
// when the caret is already at the start of the text, jump to start before whitespace
if (newVisualCol == oldVisualColumn)
newVisualCol = 0;
return visualLine.GetTextViewPosition(newVisualCol);
}
private static TextViewPosition GetEndOfLineCaretPosition(VisualLine visualLine, TextLine textLine)
{
var newVisualCol = visualLine.GetTextLineVisualStartColumn(textLine) + textLine.Length - textLine.TrailingWhitespaceLength;
var pos = visualLine.GetTextViewPosition(newVisualCol);
pos.IsAtEndOfLine = true;
return pos;
}
#endregion
#region By-character / By-word movement
private static TextViewPosition GetNextCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to start of next line
var nextDocumentLine = visualLine.LastDocumentLine.NextLine;
if (nextDocumentLine != null)
{
var nextLine = textView.GetOrConstructVisualLine(nextDocumentLine);
pos = nextLine.GetNextCaretPosition(-1, LogicalDirection.Forward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return nextLine.GetTextViewPosition(pos);
}
else
{
// at end of document
Debug.Assert(visualLine.LastDocumentLine.Offset + visualLine.LastDocumentLine.TotalLength == textView.Document.TextLength);
return new TextViewPosition(textView.Document.GetLocation(textView.Document.TextLength));
}
}
}
private static TextViewPosition GetPrevCaretPosition(TextView textView, TextViewPosition caretPosition, VisualLine visualLine, CaretPositioningMode mode, bool enableVirtualSpace)
{
var pos = visualLine.GetNextCaretPosition(caretPosition.VisualColumn, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos >= 0)
{
return visualLine.GetTextViewPosition(pos);
}
else
{
// move to end of previous line
var previousDocumentLine = visualLine.FirstDocumentLine.PreviousLine;
if (previousDocumentLine != null)
{
var previousLine = textView.GetOrConstructVisualLine(previousDocumentLine);
pos = previousLine.GetNextCaretPosition(previousLine.VisualLength + 1, LogicalDirection.Backward, mode, enableVirtualSpace);
if (pos < 0)
throw ThrowUtil.NoValidCaretPosition();
return previousLine.GetTextViewPosition(pos);
}
else
{
// at start of document
Debug.Assert(visualLine.FirstDocumentLine.Offset == 0);
return new TextViewPosition(0, 0);
}
}
}
#endregion
#region Line+Page up/down
private static TextViewPosition GetUpDownCaretPosition(TextView textView, TextViewPosition caretPosition, CaretMovementType direction, VisualLine visualLine, TextLine textLine, bool enableVirtualSpace, ref double xPos)
{
// moving up/down happens using the desired visual X position
if (double.IsNaN(xPos))
xPos = visualLine.GetTextLineVisualXPosition(textLine, caretPosition.VisualColumn);
// now find the TextLine+VisualLine where the caret will end up in
var targetVisualLine = visualLine;
TextLine targetLine;
var textLineIndex = visualLine.TextLines.IndexOf(textLine);
switch (direction)
{
case CaretMovementType.LineUp:
{
// Move up: move to the previous TextLine in the same visual line
// or move to the last TextLine of the previous visual line
var prevLineNumber = visualLine.FirstDocumentLine.LineNumber - 1;
if (textLineIndex > 0)
{
targetLine = visualLine.TextLines[textLineIndex - 1];
}
else if (prevLineNumber >= 1)
{
var prevLine = textView.Document.GetLineByNumber(prevLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(prevLine);
targetLine = targetVisualLine.TextLines[targetVisualLine.TextLines.Count - 1];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.LineDown:
{
// Move down: move to the next TextLine in the same visual line
// or move to the first TextLine of the next visual line
var nextLineNumber = visualLine.LastDocumentLine.LineNumber + 1;
if (textLineIndex < visualLine.TextLines.Count - 1)
{
targetLine = visualLine.TextLines[textLineIndex + 1];
}
else if (nextLineNumber <= textView.Document.LineCount)
{
var nextLine = textView.Document.GetLineByNumber(nextLineNumber);
targetVisualLine = textView.GetOrConstructVisualLine(nextLine);
targetLine = targetVisualLine.TextLines[0];
}
else
{
targetLine = null;
}
break;
}
case CaretMovementType.PageUp:
case CaretMovementType.PageDown:
{
// Page up/down: find the target line using its visual position
var yPos = visualLine.GetTextLineVisualYPosition(textLine, VisualYPosition.LineMiddle);
if (direction == CaretMovementType.PageUp)
yPos -= textView.Bounds.Height;
else
yPos += textView.Bounds.Height;
var newLine = textView.GetDocumentLineByVisualTop(yPos);
targetVisualLine = textView.GetOrConstructVisualLine(newLine);
targetLine = targetVisualLine.GetTextLineByVisualYPosition(yPos);
break;
}
default:
throw new NotSupportedException(direction.ToString());
}
if (targetLine != null)
{
var yPos = targetVisualLine.GetTextLineVisualYPosition(targetLine, VisualYPosition.LineMiddle);
var newVisualColumn = targetVisualLine.GetVisualColumn(new Point(xPos, yPos), enableVirtualSpace);
// prevent wrapping to the next line; TODO: could 'IsAtEnd' help here?
var targetLineStartCol = targetVisualLine.GetTextLineVisualStartColumn(targetLine);
if (newVisualColumn >= targetLineStartCol + targetLine.Length)
{
if (newVisualColumn <= targetVisualLine.VisualLength)
newVisualColumn = targetLineStartCol + targetLine.Length - 1;
}
return targetVisualLine.GetTextViewPosition(newVisualColumn);
}
else
{
return caretPosition;
}
}
#endregion
}
}
<MSG> Merge pull request #81 from gurgendav/mac-shortcuts
Fix editor shortcuts on mac replacing ctrl with cmd
<DFF> @@ -62,9 +62,14 @@ namespace AvaloniaEdit.Editing
static readonly List<RoutedCommandBinding> CommandBindings = new List<RoutedCommandBinding>();
static readonly List<KeyBinding> KeyBindings = new List<KeyBinding>();
- private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ private static void AddBinding(RoutedCommand command, EventHandler<ExecutedRoutedEventArgs> handler)
{
CommandBindings.Add(new RoutedCommandBinding(command, handler));
+ }
+
+ private static void AddBinding(RoutedCommand command, KeyModifiers modifiers, Key key, EventHandler<ExecutedRoutedEventArgs> handler)
+ {
+ AddBinding(command, handler);
KeyBindings.Add(TextAreaDefaultInputHandler.CreateKeyBinding(command, modifiers, key));
}
@@ -108,7 +113,7 @@ namespace AvaloniaEdit.Editing
AddBinding(EditingCommands.MoveToDocumentEnd, KeyModifiers.Control, Key.End, OnMoveCaret(CaretMovementType.DocumentEnd));
AddBinding(EditingCommands.SelectToDocumentEnd, KeyModifiers.Control | KeyModifiers.Shift, Key.End, OnMoveCaretExtendSelection(CaretMovementType.DocumentEnd));
- AddBinding(ApplicationCommands.SelectAll, KeyModifiers.Control, Key.A, OnSelectAll);
+ AddBinding(ApplicationCommands.SelectAll, OnSelectAll);
}
private static void OnSelectAll(object target, ExecutedRoutedEventArgs args)
| 7 | Merge pull request #81 from gurgendav/mac-shortcuts | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061601 | <NME> AvaloniaEdit.sln
<BEF>
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MinimumVisualStudioVersion = 10.0.40219.1
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GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {DCA3703C-8F8E-4AC5-81D7-65131FEBA631}
EndGlobalSection
EndGlobal
<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.32014.148
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28621.142
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061602 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
EndProject
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EndProject
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EndProject
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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
EndProjectSection
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.TextMate", "src\AvaloniaEdit.TextMate\AvaloniaEdit.TextMate.csproj", "{63826C17-C08C-4E5F-AABB-443EBA565E92}"
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Debug|x64 = Debug|x64
Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
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{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {DCA3703C-8F8E-4AC5-81D7-65131FEBA631}
EndGlobalSection
EndGlobal
<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.32014.148
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28621.142
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061603 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
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{63826C17-C08C-4E5F-AABB-443EBA565E92}.Debug|x64.Build.0 = Debug|Any CPU
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{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|Any CPU.Build.0 = Release|Any CPU
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{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
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HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {DCA3703C-8F8E-4AC5-81D7-65131FEBA631}
EndGlobalSection
EndGlobal
<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.32014.148
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28621.142
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061604 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061605 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061606 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061607 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061608 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
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+# Visual Studio Version 16
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EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061609 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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+# Visual Studio Version 16
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EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061610 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.32014.148
+# Visual Studio Version 16
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EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061611 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
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<MSG> Remove unwanted changes in sln file
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061612 | <NME> AvaloniaEdit.sln
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061613 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061614 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
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<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061615 | <NME> AvaloniaEdit.sln
<BEF>
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.0.32014.148
MinimumVisualStudioVersion = 10.0.40219.1
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EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.Tests", "test\AvaloniaEdit.Tests\AvaloniaEdit.Tests.csproj", "{9E5D4372-D362-44A2-984D-578288870AB8}"
EndProject
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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
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EndProject
Global
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Debug|Any CPU = Debug|Any CPU
Debug|x64 = Debug|x64
Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{4B04026F-BA96-4721-AE28-0970CB5806A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Release|Any CPU.Build.0 = Release|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Release|x64.ActiveCfg = Release|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Release|x64.Build.0 = Release|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Debug|Any CPU.Build.0 = Debug|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Debug|x64.ActiveCfg = Debug|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Debug|x64.Build.0 = Debug|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Release|Any CPU.ActiveCfg = Release|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Release|Any CPU.Build.0 = Release|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Release|x64.ActiveCfg = Release|Any CPU
{9E5D4372-D362-44A2-984D-578288870AB8}.Release|x64.Build.0 = Release|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Debug|Any CPU.Build.0 = Debug|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Debug|x64.ActiveCfg = Debug|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Debug|x64.Build.0 = Debug|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|Any CPU.ActiveCfg = Release|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|Any CPU.Build.0 = Release|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|x64.ActiveCfg = Release|Any CPU
{63826C17-C08C-4E5F-AABB-443EBA565E92}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {DCA3703C-8F8E-4AC5-81D7-65131FEBA631}
EndGlobalSection
EndGlobal
<MSG> Remove unwanted changes in sln file
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
-VisualStudioVersion = 17.0.32014.148
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.28621.142
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit", "src\AvaloniaEdit\AvaloniaEdit.csproj", "{4B04026F-BA96-4721-AE28-0970CB5806A9}"
EndProject
| 2 | Remove unwanted changes in sln file | 2 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10061616 | <NME> .travis.yml
<BEF> ADDFILE
<MSG> Tests: Add travis.yml config
<DFF> @@ -0,0 +1,1 @@
+language: node_js
| 1 | Tests: Add travis.yml config | 0 | .yml | travis | mit | tabalinas/jsgrid |
10061617 | <NME> .travis.yml
<BEF> ADDFILE
<MSG> Tests: Add travis.yml config
<DFF> @@ -0,0 +1,1 @@
+language: node_js
| 1 | Tests: Add travis.yml config | 0 | .yml | travis | mit | tabalinas/jsgrid |
10061618 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061619 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061620 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061621 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061622 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061623 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061624 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061625 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061626 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061627 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061628 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061629 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061630 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061631 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061632 | <NME> TextArea.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Presenters;
using Avalonia.Controls.Primitives;
using Avalonia.Data;
using Avalonia.Input;
using Avalonia.Input.TextInput;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Threading;
using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Indentation;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Search;
using AvaloniaEdit.Utils;
using System;
using System.Collections.Generic;
using System.Collections.Immutable;
using System.Collections.ObjectModel;
using System.Collections.Specialized;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
namespace AvaloniaEdit.Editing
{
/// <summary>
/// Control that wraps a TextView and adds support for user input and the caret.
/// </summary>
public class TextArea : TemplatedControl, ITextEditorComponent, IRoutedCommandBindable, ILogicalScrollable
{
/// <summary>
/// This is the extra scrolling space that occurs after the last line.
/// </summary>
private const int AdditionalVerticalScrollAmount = 2;
private ILogicalScrollable _logicalScrollable;
private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
#region Constructor
static TextArea()
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange(OffsetProperty);
AffectsRender(OffsetProperty);
}
/// <summary>
AffectsRender<TextArea>(OffsetProperty);
TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
{
if (!ta.IsReadOnly)
{
e.Client = ta._imClient;
}
});
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
public TextArea() : this(new TextView())
{
AddHandler(KeyDownEvent, OnPreviewKeyDown, RoutingStrategies.Tunnel);
AddHandler(KeyUpEvent, OnPreviewKeyUp, RoutingStrategies.Tunnel);
}
/// <summary>
/// Creates a new TextArea instance.
/// </summary>
protected TextArea(TextView textView)
{
TextView = textView ?? throw new ArgumentNullException(nameof(textView));
_logicalScrollable = textView;
Options = textView.Options;
_selection = EmptySelection = new EmptySelection(this);
textView.Services.AddService(this);
textView.LineTransformers.Add(new SelectionColorizer(this));
textView.InsertLayer(new SelectionLayer(this), KnownLayer.Selection, LayerInsertionPosition.Replace);
Caret = new Caret(this);
Caret.PositionChanged += (sender, e) => RequestSelectionValidation();
Caret.PositionChanged += CaretPositionChanged;
AttachTypingEvents();
LeftMargins.CollectionChanged += LeftMargins_CollectionChanged;
DefaultInputHandler = new TextAreaDefaultInputHandler(this);
ActiveInputHandler = DefaultInputHandler;
// TODO
//textView.GetObservable(TextBlock.FontSizeProperty).Subscribe(_ =>
//{
// TextView.SetScrollOffset(new Vector(_offset.X, _offset.Y * TextView.DefaultLineHeight));
//});
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (e.NameScope.Find("PART_CP") is ContentPresenter contentPresenter)
{
contentPresenter.Content = TextView;
}
}
internal void AddChild(IVisual visual)
{
VisualChildren.Add(visual);
InvalidateArrange();
}
internal void RemoveChild(IVisual visual)
{
VisualChildren.Remove(visual);
}
#endregion
/// <summary>
/// Defines the <see cref="IScrollable.Offset" /> property.
/// </summary>
public static readonly DirectProperty<TextArea, Vector> OffsetProperty =
AvaloniaProperty.RegisterDirect<TextArea, Vector>(
nameof(IScrollable.Offset),
o => (o as IScrollable).Offset,
(o, v) => (o as IScrollable).Offset = v);
#region InputHandler management
/// <summary>
/// Gets the default input handler.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public TextAreaDefaultInputHandler DefaultInputHandler { get; }
private ITextAreaInputHandler _activeInputHandler;
private bool _isChangingInputHandler;
/// <summary>
/// Gets/Sets the active input handler.
/// This property does not return currently active stacked input handlers. Setting this property detached all stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ITextAreaInputHandler ActiveInputHandler
{
get => _activeInputHandler;
set
{
if (value != null && value.TextArea != this)
throw new ArgumentException("The input handler was created for a different text area than this one.");
if (_isChangingInputHandler)
throw new InvalidOperationException("Cannot set ActiveInputHandler recursively");
if (_activeInputHandler != value)
{
_isChangingInputHandler = true;
try
{
// pop the whole stack
PopStackedInputHandler(StackedInputHandlers.LastOrDefault());
Debug.Assert(StackedInputHandlers.IsEmpty);
_activeInputHandler?.Detach();
_activeInputHandler = value;
value?.Attach();
}
finally
{
_isChangingInputHandler = false;
}
ActiveInputHandlerChanged?.Invoke(this, EventArgs.Empty);
}
}
}
/// <summary>
/// Occurs when the ActiveInputHandler property changes.
/// </summary>
public event EventHandler ActiveInputHandlerChanged;
/// <summary>
/// Gets the list of currently active stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public ImmutableStack<TextAreaStackedInputHandler> StackedInputHandlers { get; private set; } = ImmutableStack<TextAreaStackedInputHandler>.Empty;
/// <summary>
/// Pushes an input handler onto the list of stacked input handlers.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PushStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (inputHandler == null)
throw new ArgumentNullException(nameof(inputHandler));
StackedInputHandlers = StackedInputHandlers.Push(inputHandler);
inputHandler.Attach();
}
/// <summary>
/// Pops the stacked input handler (and all input handlers above it).
/// If <paramref name="inputHandler"/> is not found in the currently stacked input handlers, or is null, this method
/// does nothing.
/// </summary>
/// <remarks><inheritdoc cref="ITextAreaInputHandler"/></remarks>
public void PopStackedInputHandler(TextAreaStackedInputHandler inputHandler)
{
if (StackedInputHandlers.Any(i => i == inputHandler))
{
ITextAreaInputHandler oldHandler;
do
{
oldHandler = StackedInputHandlers.Peek();
StackedInputHandlers = StackedInputHandlers.Pop();
oldHandler.Detach();
} while (oldHandler != inputHandler);
}
}
#endregion
#region Document property
/// <summary>
/// Document property.
/// </summary>
public static readonly StyledProperty<TextDocument> DocumentProperty
= TextView.DocumentProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextDocument Document
{
get => GetValue(DocumentProperty);
set => SetValue(DocumentProperty, value);
}
/// <inheritdoc/>
public event EventHandler DocumentChanged;
/// <summary>
/// Gets if the the document displayed by the text editor is readonly
/// </summary>
public bool IsReadOnly
{
get => ReadOnlySectionProvider == ReadOnlySectionDocument.Instance;
}
private static void OnDocumentChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnDocumentChanged((TextDocument)e.OldValue, (TextDocument)e.NewValue);
}
private void OnDocumentChanged(TextDocument oldValue, TextDocument newValue)
{
if (oldValue != null)
{
TextDocumentWeakEventManager.Changing.RemoveHandler(oldValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.RemoveHandler(oldValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.RemoveHandler(oldValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.RemoveHandler(oldValue, OnUpdateFinished);
}
TextView.Document = newValue;
if (newValue != null)
{
TextDocumentWeakEventManager.Changing.AddHandler(newValue, OnDocumentChanging);
TextDocumentWeakEventManager.Changed.AddHandler(newValue, OnDocumentChanged);
TextDocumentWeakEventManager.UpdateStarted.AddHandler(newValue, OnUpdateStarted);
TextDocumentWeakEventManager.UpdateFinished.AddHandler(newValue, OnUpdateFinished);
InvalidateArrange();
}
// Reset caret location and selection: this is necessary because the caret/selection might be invalid
// in the new document (e.g. if new document is shorter than the old document).
Caret.Location = new TextLocation(1, 1);
ClearSelection();
DocumentChanged?.Invoke(this, EventArgs.Empty);
//CommandManager.InvalidateRequerySuggested();
}
#endregion
#region Options property
/// <summary>
/// Options property.
/// </summary>
public static readonly StyledProperty<TextEditorOptions> OptionsProperty
= TextView.OptionsProperty.AddOwner<TextArea>();
/// <summary>
/// Gets/Sets the document displayed by the text editor.
/// </summary>
public TextEditorOptions Options
{
get => GetValue(OptionsProperty);
set => SetValue(OptionsProperty, value);
}
/// <summary>
/// Occurs when a text editor option has changed.
/// </summary>
public event PropertyChangedEventHandler OptionChanged;
private void OnOptionChanged(object sender, PropertyChangedEventArgs e)
{
OnOptionChanged(e);
}
/// <summary>
/// Raises the <see cref="OptionChanged"/> event.
/// </summary>
protected virtual void OnOptionChanged(PropertyChangedEventArgs e)
{
OptionChanged?.Invoke(this, e);
}
private static void OnOptionsChanged(AvaloniaPropertyChangedEventArgs e)
{
(e.Sender as TextArea)?.OnOptionsChanged((TextEditorOptions)e.OldValue, (TextEditorOptions)e.NewValue);
}
private void OnOptionsChanged(TextEditorOptions oldValue, TextEditorOptions newValue)
{
if (oldValue != null)
{
PropertyChangedWeakEventManager.RemoveHandler(oldValue, OnOptionChanged);
}
TextView.Options = newValue;
if (newValue != null)
{
PropertyChangedWeakEventManager.AddHandler(newValue, OnOptionChanged);
}
OnOptionChanged(new PropertyChangedEventArgs(null));
}
#endregion
#region Caret handling on document changes
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanging();
}
private void OnDocumentChanged(object sender, DocumentChangeEventArgs e)
{
Caret.OnDocumentChanged(e);
Selection = _selection.UpdateOnDocumentChange(e);
}
private void OnUpdateStarted(object sender, EventArgs e)
{
Document.UndoStack.PushOptional(new RestoreCaretAndSelectionUndoAction(this));
}
private void OnUpdateFinished(object sender, EventArgs e)
{
Caret.OnDocumentUpdateFinished();
}
private sealed class RestoreCaretAndSelectionUndoAction : IUndoableOperation
{
// keep textarea in weak reference because the IUndoableOperation is stored with the document
private readonly WeakReference _textAreaReference;
private readonly TextViewPosition _caretPosition;
private readonly Selection _selection;
public RestoreCaretAndSelectionUndoAction(TextArea textArea)
{
_textAreaReference = new WeakReference(textArea);
// Just save the old caret position, no need to validate here.
// If we restore it, we'll validate it anyways.
_caretPosition = textArea.Caret.NonValidatedPosition;
_selection = textArea.Selection;
}
public void Undo()
{
var textArea = (TextArea)_textAreaReference.Target;
if (textArea != null)
{
textArea.Caret.Position = _caretPosition;
textArea.Selection = _selection;
}
}
public void Redo()
{
// redo=undo: we just restore the caret/selection state
Undo();
}
}
#endregion
#region TextView property
/// <summary>
/// Gets the text view used to display text in this text area.
/// </summary>
public TextView TextView { get; }
#endregion
#region Selection property
internal readonly Selection EmptySelection;
private Selection _selection;
/// <summary>
/// Occurs when the selection has changed.
/// </summary>
public event EventHandler SelectionChanged;
/// <summary>
/// Gets/Sets the selection in this text area.
/// </summary>
public Selection Selection
{
get => _selection;
set
{
if (value == null)
throw new ArgumentNullException(nameof(value));
if (value.TextArea != this)
throw new ArgumentException("Cannot use a Selection instance that belongs to another text area.");
if (!Equals(_selection, value))
{
if (TextView != null)
{
var oldSegment = _selection.SurroundingSegment;
var newSegment = value.SurroundingSegment;
if (!Selection.EnableVirtualSpace && (_selection is SimpleSelection && value is SimpleSelection && oldSegment != null && newSegment != null))
{
// perf optimization:
// When a simple selection changes, don't redraw the whole selection, but only the changed parts.
var oldSegmentOffset = oldSegment.Offset;
var newSegmentOffset = newSegment.Offset;
if (oldSegmentOffset != newSegmentOffset)
{
TextView.Redraw(Math.Min(oldSegmentOffset, newSegmentOffset),
Math.Abs(oldSegmentOffset - newSegmentOffset));
}
var oldSegmentEndOffset = oldSegment.EndOffset;
var newSegmentEndOffset = newSegment.EndOffset;
if (oldSegmentEndOffset != newSegmentEndOffset)
{
TextView.Redraw(Math.Min(oldSegmentEndOffset, newSegmentEndOffset),
Math.Abs(oldSegmentEndOffset - newSegmentEndOffset));
}
}
else
{
TextView.Redraw(oldSegment);
TextView.Redraw(newSegment);
}
}
_selection = value;
SelectionChanged?.Invoke(this, EventArgs.Empty);
// a selection change causes commands like copy/paste/etc. to change status
//CommandManager.InvalidateRequerySuggested();
}
}
}
/// <summary>
/// Clears the current selection.
/// </summary>
public void ClearSelection()
{
Selection = EmptySelection;
}
/// <summary>
/// The <see cref="SelectionBrush"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionBrushProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionBrush");
/// <summary>
/// Gets/Sets the background brush used for the selection.
/// </summary>
public IBrush SelectionBrush
{
get => GetValue(SelectionBrushProperty);
set => SetValue(SelectionBrushProperty, value);
}
/// <summary>
/// The <see cref="SelectionForeground"/> property.
/// </summary>
public static readonly StyledProperty<IBrush> SelectionForegroundProperty =
AvaloniaProperty.Register<TextArea, IBrush>("SelectionForeground");
/// <summary>
/// Gets/Sets the foreground brush used for selected text.
/// </summary>
public IBrush SelectionForeground
{
get => GetValue(SelectionForegroundProperty);
set => SetValue(SelectionForegroundProperty, value);
}
/// <summary>
/// The <see cref="SelectionBorder"/> property.
/// </summary>
public static readonly StyledProperty<Pen> SelectionBorderProperty =
AvaloniaProperty.Register<TextArea, Pen>("SelectionBorder");
/// <summary>
/// Gets/Sets the pen used for the border of the selection.
/// </summary>
public Pen SelectionBorder
{
get => GetValue(SelectionBorderProperty);
set => SetValue(SelectionBorderProperty, value);
}
/// <summary>
/// The <see cref="SelectionCornerRadius"/> property.
/// </summary>
public static readonly StyledProperty<double> SelectionCornerRadiusProperty =
AvaloniaProperty.Register<TextArea, double>("SelectionCornerRadius", 3.0);
/// <summary>
/// Gets/Sets the corner radius of the selection.
/// </summary>
public double SelectionCornerRadius
{
get => GetValue(SelectionCornerRadiusProperty);
set => SetValue(SelectionCornerRadiusProperty, value);
}
#endregion
#region Force caret to stay inside selection
private bool _ensureSelectionValidRequested;
private int _allowCaretOutsideSelection;
private void RequestSelectionValidation()
{
if (!_ensureSelectionValidRequested && _allowCaretOutsideSelection == 0)
{
_ensureSelectionValidRequested = true;
Dispatcher.UIThread.Post(EnsureSelectionValid);
}
}
/// <summary>
/// Code that updates only the caret but not the selection can cause confusion when
/// keys like 'Delete' delete the (possibly invisible) selected text and not the
/// text around the caret.
///
/// So we'll ensure that the caret is inside the selection.
/// (when the caret is not in the selection, we'll clear the selection)
///
/// This method is invoked using the Dispatcher so that code may temporarily violate this rule
/// (e.g. most 'extend selection' methods work by first setting the caret, then the selection),
/// it's sufficient to fix it after any event handlers have run.
/// </summary>
private void EnsureSelectionValid()
{
_ensureSelectionValidRequested = false;
if (_allowCaretOutsideSelection == 0)
{
if (!_selection.IsEmpty && !_selection.Contains(Caret.Offset))
{
ClearSelection();
}
}
}
/// <summary>
/// Temporarily allows positioning the caret outside the selection.
/// Dispose the returned IDisposable to revert the allowance.
/// </summary>
/// <remarks>
/// The text area only forces the caret to be inside the selection when other events
/// have finished running (using the dispatcher), so you don't have to use this method
/// for temporarily positioning the caret in event handlers.
/// This method is only necessary if you want to run the dispatcher, e.g. if you
/// perform a drag'n'drop operation.
/// </remarks>
public IDisposable AllowCaretOutsideSelection()
{
VerifyAccess();
_allowCaretOutsideSelection++;
return new CallbackOnDispose(
delegate
{
VerifyAccess();
_allowCaretOutsideSelection--;
RequestSelectionValidation();
});
}
#endregion
#region Properties
/// <summary>
/// Gets the Caret used for this text area.
/// </summary>
public Caret Caret { get; }
/// <summary>
/// Scrolls the text view so that the requested line is in the middle.
/// If the textview can be scrolled.
/// </summary>
/// <param name="line">The line to scroll to.</param>
public void ScrollToLine (int line)
{
var viewPortLines = (int)(this as IScrollable).Viewport.Height;
if (viewPortLines < Document.LineCount)
{
ScrollToLine(line, 2, viewPortLines / 2);
}
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesEitherSide">The number of lines above and below.</param>
public void ScrollToLine(int line, int linesEitherSide)
{
ScrollToLine(line, linesEitherSide, linesEitherSide);
}
/// <summary>
/// Scrolls the textview to a position with n lines above and below it.
/// </summary>
/// <param name="line">the requested line number.</param>
/// <param name="linesAbove">The number of lines above.</param>
/// <param name="linesBelow">The number of lines below.</param>
public void ScrollToLine(int line, int linesAbove, int linesBelow)
{
var offset = line - linesAbove;
if (offset < 0)
{
offset = 0;
}
this.BringIntoView(new Rect(1, offset, 0, 1));
offset = line + linesBelow;
if (offset >= 0)
{
this.BringIntoView(new Rect(1, offset, 0, 1));
}
}
private void CaretPositionChanged(object sender, EventArgs e)
{
if (TextView == null)
return;
TextView.HighlightedLine = Caret.Line;
ScrollToLine(Caret.Line, 2);
Dispatcher.UIThread.InvokeAsync(() =>
{
(this as ILogicalScrollable).RaiseScrollInvalidated(EventArgs.Empty);
});
}
public static readonly DirectProperty<TextArea, ObservableCollection<IControl>> LeftMarginsProperty
= AvaloniaProperty.RegisterDirect<TextArea, ObservableCollection<IControl>>(nameof(LeftMargins),
c => c.LeftMargins);
/// <summary>
/// Gets the collection of margins displayed to the left of the text view.
/// </summary>
public ObservableCollection<IControl> LeftMargins { get; } = new ObservableCollection<IControl>();
private void LeftMargins_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
{
if (e.OldItems != null)
{
foreach (var c in e.OldItems.OfType<ITextViewConnect>())
{
c.RemoveFromTextView(TextView);
}
}
if (e.NewItems != null)
{
foreach (var c in e.NewItems.OfType<ITextViewConnect>())
{
c.AddToTextView(TextView);
}
}
}
private IReadOnlySectionProvider _readOnlySectionProvider = NoReadOnlySections.Instance;
/// <summary>
/// Gets/Sets an object that provides read-only sections for the text area.
/// </summary>
public IReadOnlySectionProvider ReadOnlySectionProvider
{
get => _readOnlySectionProvider;
set => _readOnlySectionProvider = value ?? throw new ArgumentNullException(nameof(value));
}
/// <summary>
/// The <see cref="RightClickMovesCaret"/> property.
/// </summary>
public static readonly StyledProperty<bool> RightClickMovesCaretProperty =
AvaloniaProperty.Register<TextArea, bool>(nameof(RightClickMovesCaret), false);
/// <summary>
/// Determines whether caret position should be changed to the mouse position when you right click or not.
/// </summary>
public bool RightClickMovesCaret
{
get => GetValue(RightClickMovesCaretProperty);
set => SetValue(RightClickMovesCaretProperty, value);
}
#endregion
#region Focus Handling (Show/Hide Caret)
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
base.OnPointerPressed(e);
Focus();
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
Caret.Show();
_imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
_imClient.SetTextArea(null);
}
#endregion
#region OnTextInput / RemoveSelectedText / ReplaceSelectionWithText
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately before the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntering;
/// <summary>
/// Occurs when the TextArea receives text input.
/// but occurs immediately after the TextArea handles the TextInput event.
/// </summary>
public event EventHandler<TextInputEventArgs> TextEntered;
/// <summary>
/// Raises the TextEntering event.
/// </summary>
protected virtual void OnTextEntering(TextInputEventArgs e)
{
TextEntering?.Invoke(this, e);
}
/// <summary>
/// Raises the TextEntered event.
/// </summary>
protected virtual void OnTextEntered(TextInputEventArgs e)
{
TextEntered?.Invoke(this, e);
}
protected override void OnTextInput(TextInputEventArgs e)
{
base.OnTextInput(e);
if (!e.Handled && Document != null)
{
if (string.IsNullOrEmpty(e.Text) || e.Text == "\x1b" || e.Text == "\b" || e.Text == "\u007f")
{
// TODO: check this
// ASCII 0x1b = ESC.
// produces a TextInput event with that old ASCII control char
// when Escape is pressed. We'll just ignore it.
// A deadkey followed by backspace causes a textinput event for the BS character.
// Similarly, some shortcuts like Alt+Space produce an empty TextInput event.
// We have to ignore those (not handle them) to keep the shortcut working.
return;
}
HideMouseCursor();
PerformTextInput(e);
e.Handled = true;
}
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(string text)
{
var e = new TextInputEventArgs
{
Text = text,
RoutedEvent = TextInputEvent
};
PerformTextInput(e);
}
/// <summary>
/// Performs text input.
/// This raises the <see cref="TextEntering"/> event, replaces the selection with the text,
/// and then raises the <see cref="TextEntered"/> event.
/// </summary>
public void PerformTextInput(TextInputEventArgs e)
{
if (e == null)
throw new ArgumentNullException(nameof(e));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
OnTextEntering(e);
if (!e.Handled)
{
if (e.Text == "\n" || e.Text == "\r" || e.Text == "\r\n")
ReplaceSelectionWithNewLine();
else
{
// TODO
//if (OverstrikeMode && Selection.IsEmpty && Document.GetLineByNumber(Caret.Line).EndOffset > Caret.Offset)
// EditingCommands.SelectRightByCharacter.Execute(null, this);
ReplaceSelectionWithText(e.Text);
}
OnTextEntered(e);
Caret.BringCaretToView();
}
}
private void ReplaceSelectionWithNewLine()
{
var newLine = TextUtilities.GetNewLineFromDocument(Document, Caret.Line);
using (Document.RunUpdate())
{
ReplaceSelectionWithText(newLine);
if (IndentationStrategy != null)
{
var line = Document.GetLineByNumber(Caret.Line);
var deletable = GetDeletableSegments(line);
if (deletable.Length == 1 && deletable[0].Offset == line.Offset && deletable[0].Length == line.Length)
{
// use indentation strategy only if the line is not read-only
IndentationStrategy.IndentLine(Document, line);
}
}
}
}
internal void RemoveSelectedText()
{
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(string.Empty);
#if DEBUG
if (!_selection.IsEmpty)
{
foreach (var s in _selection.Segments)
{
Debug.Assert(!ReadOnlySectionProvider.GetDeletableSegments(s).Any());
}
}
#endif
}
internal void ReplaceSelectionWithText(string newText)
{
if (newText == null)
throw new ArgumentNullException(nameof(newText));
if (Document == null)
throw ThrowUtil.NoDocumentAssigned();
_selection.ReplaceSelectionWithText(newText);
}
internal ISegment[] GetDeletableSegments(ISegment segment)
{
var deletableSegments = ReadOnlySectionProvider.GetDeletableSegments(segment);
if (deletableSegments == null)
throw new InvalidOperationException("ReadOnlySectionProvider.GetDeletableSegments returned null");
var array = deletableSegments.ToArray();
var lastIndex = segment.Offset;
foreach (var t in array)
{
if (t.Offset < lastIndex)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
lastIndex = t.EndOffset;
}
if (lastIndex > segment.EndOffset)
throw new InvalidOperationException("ReadOnlySectionProvider returned incorrect segments (outside of input segment / wrong order)");
return array;
}
#endregion
#region IndentationStrategy property
/// <summary>
/// IndentationStrategy property.
/// </summary>
public static readonly StyledProperty<IIndentationStrategy> IndentationStrategyProperty =
AvaloniaProperty.Register<TextArea, IIndentationStrategy>("IndentationStrategy", new DefaultIndentationStrategy());
/// <summary>
/// Gets/Sets the indentation strategy used when inserting new lines.
/// </summary>
public IIndentationStrategy IndentationStrategy
{
get => GetValue(IndentationStrategyProperty);
set => SetValue(IndentationStrategyProperty, value);
}
#endregion
#region OnKeyDown/OnKeyUp
// Make life easier for text editor extensions that use a different cursor based on the pressed modifier keys.
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyDown(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyDown(e);
}
}
/// <inheritdoc/>
protected override void OnKeyUp(KeyEventArgs e)
{
base.OnKeyUp(e);
TextView.InvalidateCursorIfPointerWithinTextView();
}
private void OnPreviewKeyUp(object sender, KeyEventArgs e)
{
foreach (var h in StackedInputHandlers)
{
if (e.Handled)
break;
h.OnPreviewKeyUp(e);
}
}
#endregion
#region Hide Mouse Cursor While Typing
private bool _isMouseCursorHidden;
private void AttachTypingEvents()
{
// Use the PreviewMouseMove event in case some other editor layer consumes the MouseMove event (e.g. SD's InsertionCursorLayer)
PointerEntered += delegate { ShowMouseCursor(); };
PointerExited += delegate { ShowMouseCursor(); };
}
private void ShowMouseCursor()
{
if (_isMouseCursorHidden)
{
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
}
}
#endregion
#region Overstrike mode
/// <summary>
/// The <see cref="OverstrikeMode"/> dependency property.
/// </summary>
public static readonly StyledProperty<bool> OverstrikeModeProperty =
AvaloniaProperty.Register<TextArea, bool>("OverstrikeMode");
/// <summary>
/// Gets/Sets whether overstrike mode is active.
/// </summary>
public bool OverstrikeMode
{
get => GetValue(OverstrikeModeProperty);
set => SetValue(OverstrikeModeProperty, value);
}
#endregion
/// <inheritdoc/>
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SelectionBrushProperty
|| change.Property == SelectionBorderProperty
|| change.Property == SelectionForegroundProperty
|| change.Property == SelectionCornerRadiusProperty)
{
TextView.Redraw();
}
else if (change.Property == OverstrikeModeProperty)
{
Caret.UpdateIfVisible();
}
}
/// <summary>
/// Gets the requested service.
/// </summary>
/// <returns>Returns the requested service instance, or null if the service cannot be found.</returns>
public virtual object GetService(Type serviceType)
{
return TextView.GetService(serviceType);
}
/// <summary>
/// Occurs when text inside the TextArea was copied.
/// </summary>
public event EventHandler<TextEventArgs> TextCopied;
event EventHandler ILogicalScrollable.ScrollInvalidated
{
add { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated += value; }
remove { if (_logicalScrollable != null) _logicalScrollable.ScrollInvalidated -= value; }
}
internal void OnTextCopied(TextEventArgs e)
{
TextCopied?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
bool ILogicalScrollable.IsLogicalScrollEnabled => _logicalScrollable?.IsLogicalScrollEnabled ?? default(bool);
Size ILogicalScrollable.ScrollSize => _logicalScrollable?.ScrollSize ?? default(Size);
Size ILogicalScrollable.PageScrollSize => _logicalScrollable?.PageScrollSize ?? default(Size);
Size IScrollable.Extent => _logicalScrollable?.Extent ?? default(Size);
Vector IScrollable.Offset
{
get => _logicalScrollable?.Offset ?? default(Vector);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.Offset = value;
}
}
}
Size IScrollable.Viewport => _logicalScrollable?.Viewport ?? default(Size);
bool ILogicalScrollable.CanHorizontallyScroll
{
get => _logicalScrollable?.CanHorizontallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanHorizontallyScroll = value;
}
}
}
bool ILogicalScrollable.CanVerticallyScroll
{
get => _logicalScrollable?.CanVerticallyScroll ?? default(bool);
set
{
if (_logicalScrollable != null)
{
_logicalScrollable.CanVerticallyScroll = value;
}
}
}
public bool BringIntoView(IControl target, Rect targetRect) =>
_logicalScrollable?.BringIntoView(target, targetRect) ?? default(bool);
IControl ILogicalScrollable.GetControlInDirection(NavigationDirection direction, IControl from)
=> _logicalScrollable?.GetControlInDirection(direction, from);
public void RaiseScrollInvalidated(EventArgs e)
{
_logicalScrollable?.RaiseScrollInvalidated(e);
}
private class TextAreaTextInputMethodClient : ITextInputMethodClient
{
private TextArea _textArea;
public TextAreaTextInputMethodClient()
{
}
public event EventHandler CursorRectangleChanged;
public event EventHandler TextViewVisualChanged;
public event EventHandler SurroundingTextChanged;
public Rect CursorRectangle
{
get
{
if(_textArea == null)
{
return Rect.Empty;
}
var transform = _textArea.TextView.TransformToVisual(_textArea);
if (transform == null)
{
return default;
}
var rect = _textArea.Caret.CalculateCaretRectangle().TransformToAABB(transform.Value);
return rect;
}
}
public IVisual TextViewVisual => _textArea;
public bool SupportsPreedit => false;
public bool SupportsSurroundingText => true;
public TextInputMethodSurroundingText SurroundingText
{
get
{
if(_textArea == null)
{
return default;
}
var lineIndex = _textArea.Caret.Line;
var position = _textArea.Caret.Position;
var documentLine = _textArea.Document.GetLineByNumber(lineIndex);
var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
return new TextInputMethodSurroundingText
{
AnchorOffset = 0,
CursorOffset = position.Column,
Text = text
};
}
}
public void SetTextArea(TextArea textArea)
{
if(_textArea != null)
{
_textArea.Caret.PositionChanged -= Caret_PositionChanged;
_textArea.SelectionChanged -= TextArea_SelectionChanged;
}
_textArea = textArea;
if(_textArea != null)
{
_textArea.Caret.PositionChanged += Caret_PositionChanged;
_textArea.SelectionChanged += TextArea_SelectionChanged;
}
TextViewVisualChanged?.Invoke(this, EventArgs.Empty);
CursorRectangleChanged?.Invoke(this, EventArgs.Empty);
}
private void Caret_PositionChanged(object sender, EventArgs e)
{
CursorRectangleChanged?.Invoke(this, e);
}
private void TextArea_SelectionChanged(object sender, EventArgs e)
{
SurroundingTextChanged?.Invoke(this, e);
}
public void SelectInSurroundingText(int start, int end)
{
if(_textArea == null)
{
return;
}
var selection = _textArea.Selection;
_textArea.Selection = _textArea.Selection.StartSelectionOrSetEndpoint(
new TextViewPosition(selection.StartPosition.Line, start),
new TextViewPosition(selection.StartPosition.Line, end));
}
public void SetPreeditText(string text)
{
}
}
}
/// <summary>
/// EventArgs with text.
/// </summary>
public class TextEventArgs : EventArgs
{
/// <summary>
/// Gets the text.
/// </summary>
public string Text { get; }
/// <summary>
/// Creates a new TextEventArgs instance.
/// </summary>
public TextEventArgs(string text)
{
Text = text ?? throw new ArgumentNullException(nameof(text));
}
}
}
<MSG> Obsolete fixes
<DFF> @@ -62,8 +62,8 @@ namespace AvaloniaEdit.Editing
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
- AffectsArrange(OffsetProperty);
- AffectsRender(OffsetProperty);
+ AffectsArrange<TextArea>(OffsetProperty);
+ AffectsRender<TextArea>(OffsetProperty);
}
/// <summary>
| 2 | Obsolete fixes | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061633 | <NME> fruitmachine.js
<BEF> /*jslint browser:true, node:true*/
/**
* FruitMachine
*
* Renders layouts/modules from a basic layout definition.
* If views require custom interactions devs can extend
* the basic functionality.
*
* @version 0.3.3
* @copyright The Financial Times Limited [All Rights Reserved]
* @author Wilson Page <[email protected]>
*/
'use strict';
/**
* Module Dependencies
*/
var mod = require('./module');
var define = require('./define');
var utils = require('utils');
var events = require('evt');
/**
* Creates a fruitmachine
*
* Options:
*
* - `Model` A model constructor to use (must have `.toJSON()`)
*
* @param {Object} options
*/
module.exports = function(options) {
/**
* Shortcut method for
* creating lazy views.
*
* @param {Object} options
* @return {Module}
*/
function fm(options) {
var Module = fm.modules[options.module];
if (Module) {
return new Module(options);
}
throw new Error("Unable to find module '" + options.module + "'");
}
fm.create = module.exports;
fm.Model = options.Model;
fm.Events = events;
fm.Module = mod(fm);
fm.define = define(fm);
fm.util = utils;
fm.modules = {};
fm.config = {
templateIterator: 'children',
templateInstance: 'child'
};
// Mixin events and return
return events(fm);
};
}
},
mixin: function(original) {
// Loop over every argument after the first.
slice.call(arguments, 1).forEach(function(source) {
}
// Mixin Events and extend the prototype
mixin(View.prototype, Events, {
// Empty methods you can overwrite
// in your custom view logic.
onTeardown: function() {},
onDestroy: function() {},
_configure: function(options) {
this._id = options.id || util.uniqueId('auto_');
this._fmid = options.fmid || util.uniqueId('fmid');
<MSG> Added support for optional bubbling events
<DFF> @@ -72,6 +72,10 @@
}
},
+ isArray: function(arg) {
+ return arg instanceof Array;
+ },
+
mixin: function(original) {
// Loop over every argument after the first.
slice.call(arguments, 1).forEach(function(source) {
@@ -298,7 +302,45 @@
}
// Mixin Events and extend the prototype
- mixin(View.prototype, Events, {
+ mixin(View.prototype, {
+ on: Events.on,
+ off: Events.off,
+
+ /**
+ * Proxies the standard Event.trigger
+ * method so that we can add bubble
+ * functionality.
+ *
+ * Options:
+ *
+ * - `bubble` States whether the event
+ * should bubble through parent views.
+ *
+ * @param {String} key
+ * @param {Array} args
+ * @param {Object} options
+ * @return {View}
+ * @api public
+ */
+ trigger: function(key, args, options) {
+ options = options || {};
+
+ // Allows options to be
+ // the second or third arg
+ if (!util.isArray(args)) {
+ options = args || {};
+ args = [];
+ }
+
+ // Trigger event
+ Events.trigger.apply(this, [key].concat(args));
+
+ // Trigger the same event on the parent view
+ if (options.bubble && this.parent) this.parent.trigger(key, args, options);
+
+ // Allow chaining
+ return this;
+ },
// Empty methods you can overwrite
// in your custom view logic.
@@ -307,6 +349,14 @@
onTeardown: function() {},
onDestroy: function() {},
+ /**
+ * Configures the new View
+ * with the options passed
+ * to the constructor.
+ *
+ * @param {Object} options
+ * @api private
+ */
_configure: function(options) {
this._id = options.id || util.uniqueId('auto_');
this._fmid = options.fmid || util.uniqueId('fmid');
| 51 | Added support for optional bubbling events | 1 | .js | js | mit | ftlabs/fruitmachine |
10061634 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061635 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061636 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061637 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061638 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061639 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061640 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061641 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061642 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061643 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061644 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061645 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061646 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061647 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061648 | <NME> SearchPanel.cs
<BEF> // Copyright (c) 2014 AlphaSierraPapa for the SharpDevelop Team
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of this
// software and associated documentation files (the "Software"), to deal in the Software
// without restriction, including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons
// to whom the Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all copies or
// substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
// PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
// FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
using System;
using System.Collections.Generic;
using System.Linq;
using Avalonia;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
namespace AvaloniaEdit.Search
{
/// <summary>
/// Provides search functionality for AvalonEdit. It is displayed in the top-right corner of the TextArea.
/// </summary>
public class SearchPanel : TemplatedControl, IRoutedCommandBindable
{
private TextArea _textArea;
private SearchInputHandler _handler;
private TextDocument _currentDocument;
private SearchResultBackgroundRenderer _renderer;
private TextBox _searchTextBox;
private TextEditor _textEditor { get; set; }
private Border _border;
#region DependencyProperties
/// <summary>
/// Dependency property for <see cref="UseRegex"/>.
/// </summary>
public static readonly StyledProperty<bool> UseRegexProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(UseRegex));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex
{
get => GetValue(UseRegexProperty);
set => SetValue(UseRegexProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MatchCase"/>.
/// </summary>
public static readonly StyledProperty<bool> MatchCaseProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(MatchCase));
/// <summary>
/// Gets/sets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase
{
get => GetValue(MatchCaseProperty);
set => SetValue(MatchCaseProperty, value);
}
/// <summary>
/// Dependency property for <see cref="WholeWords"/>.
/// </summary>
public static readonly StyledProperty<bool> WholeWordsProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(WholeWords));
/// <summary>
/// Gets/sets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords
{
get => GetValue(WholeWordsProperty);
set => SetValue(WholeWordsProperty, value);
}
/// <summary>
/// Dependency property for <see cref="SearchPattern"/>.
/// </summary>
public static readonly StyledProperty<string> SearchPatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(SearchPattern), "");
/// <summary>
/// Gets/sets the search pattern.
set => SetValue(SearchPatternProperty, value);
}
public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
public static readonly StyledProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
set => SetValue(IsReplaceModeProperty, value);
}
public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
if (panel._textEditor == null || !v1) return v1;
return !panel._textEditor.IsReadOnly;
}
public bool IsReplaceMode
{
get => GetValue(IsReplaceModeProperty);
set => SetValue(IsReplaceModeProperty, _textEditor?.IsReadOnly ?? false ? false : value);
}
public static readonly StyledProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
{
get => GetValue(ReplacePatternProperty);
set => SetValue(ReplacePatternProperty, value);
}
/// <summary>
/// Dependency property for <see cref="MarkerBrush"/>.
/// </summary>
public static readonly StyledProperty<IBrush> MarkerBrushProperty =
AvaloniaProperty.Register<SearchPanel, IBrush>(nameof(MarkerBrush), Brushes.LightGreen);
/// <summary>
/// Gets/sets the Brush used for marking search results in the TextView.
/// </summary>
public IBrush MarkerBrush
{
get => GetValue(MarkerBrushProperty);
set => SetValue(MarkerBrushProperty, value);
}
#endregion
private static void MarkerBrushChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel._renderer.MarkerBrush = (IBrush)e.NewValue;
}
}
private ISearchStrategy _strategy;
private static void SearchPatternChangedCallback(AvaloniaPropertyChangedEventArgs e)
{
if (e.Sender is SearchPanel panel)
{
panel.ValidateSearchText();
panel.UpdateSearch();
}
}
private void UpdateSearch()
{
// only reset as long as there are results
// if no results are found, the "no matches found" message should not flicker.
// if results are found by the next run, the message will be hidden inside DoSearch ...
if (_renderer.CurrentResults.Any())
_messageView.IsOpen = false;
_strategy = SearchStrategyFactory.Create(SearchPattern ?? "", !MatchCase, WholeWords, UseRegex ? SearchMode.RegEx : SearchMode.Normal);
OnSearchOptionsChanged(new SearchOptionsChangedEventArgs(SearchPattern, MatchCase, UseRegex, WholeWords));
DoSearch(true);
}
static SearchPanel()
{
UseRegexProperty.Changed.Subscribe(SearchPatternChangedCallback);
MatchCaseProperty.Changed.Subscribe(SearchPatternChangedCallback);
WholeWordsProperty.Changed.Subscribe(SearchPatternChangedCallback);
SearchPatternProperty.Changed.Subscribe(SearchPatternChangedCallback);
MarkerBrushProperty.Changed.Subscribe(MarkerBrushChangedCallback);
}
/// <summary>
/// Creates a new SearchPanel.
/// </summary>
private SearchPanel()
{
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextEditor's TextArea.
/// </summary>
/// <remarks>This is a convenience wrapper.</remarks>
public static SearchPanel Install(TextEditor editor)
{
if (editor == null) throw new ArgumentNullException(nameof(editor));
SearchPanel searchPanel = Install(editor.TextArea);
searchPanel._textEditor = editor;
return searchPanel;
}
/// <summary>
/// Creates a SearchPanel and installs it to the TextArea.
/// </summary>
public static SearchPanel Install(TextArea textArea)
{
if (textArea == null) throw new ArgumentNullException(nameof(textArea));
var panel = new SearchPanel();
panel.AttachInternal(textArea);
panel._handler = new SearchInputHandler(textArea, panel);
textArea.DefaultInputHandler.NestedInputHandlers.Add(panel._handler);
((ISetLogicalParent)panel).SetParent(textArea);
return panel;
}
/// <summary>
/// Adds the commands used by SearchPanel to the given CommandBindingCollection.
/// </summary>
public void RegisterCommands(ICollection<RoutedCommandBinding> commandBindings)
{
_handler.RegisterGlobalCommands(commandBindings);
}
/// <summary>
/// Removes the SearchPanel from the TextArea.
/// </summary>
public void Uninstall()
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
}
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
if (_currentDocument != null)
_currentDocument.TextChanged += TextArea_Document_TextChanged;
textArea.DocumentChanged += TextArea_DocumentChanged;
KeyDown += SearchLayerKeyDown;
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindNext, (sender, e) => FindNext()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.FindPrevious, (sender, e) => FindPrevious()));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.CloseSearchPanel, (sender, e) => Close()));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Find, (sender, e) =>
{
IsReplaceMode = false;
Reactivate();
}));
CommandBindings.Add(new RoutedCommandBinding(ApplicationCommands.Replace, (sender, e) => IsReplaceMode = true));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceNext, (sender, e) => ReplaceNext(), (sender, e) => e.CanExecute = IsReplaceMode));
CommandBindings.Add(new RoutedCommandBinding(SearchCommands.ReplaceAll, (sender, e) => ReplaceAll(), (sender, e) => e.CanExecute = IsReplaceMode));
IsClosed = true;
}
private void TextArea_DocumentChanged(object sender, EventArgs e)
{
if (_currentDocument != null)
_currentDocument.TextChanged -= TextArea_Document_TextChanged;
_currentDocument = _textArea.Document;
if (_currentDocument != null)
{
_currentDocument.TextChanged += TextArea_Document_TextChanged;
DoSearch(false);
}
}
private void TextArea_Document_TextChanged(object sender, EventArgs e)
{
DoSearch(false);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
_border = e.NameScope.Find<Border>("PART_Border");
_searchTextBox = e.NameScope.Find<TextBox>("PART_searchTextBox");
_messageView = e.NameScope.Find<Popup>("PART_MessageView");
_messageViewContent = e.NameScope.Find<ContentPresenter>("PART_MessageContent");
}
private void ValidateSearchText()
{
if (_searchTextBox == null)
return;
try
{
UpdateSearch();
_validationError = null;
}
catch (SearchPatternException ex)
{
_validationError = ex.Message;
}
}
/// <summary>
/// Reactivates the SearchPanel by setting the focus on the search box and selecting all text.
/// </summary>
public void Reactivate()
{
if (_searchTextBox == null)
return;
_searchTextBox.Focus();
_searchTextBox.SelectionStart = 0;
_searchTextBox.SelectionEnd = _searchTextBox.Text?.Length ?? 0;
}
/// <summary>
/// Moves to the next occurrence in the file.
/// </summary>
public void FindNext()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset + 1) ??
_renderer.CurrentResults.FirstSegment;
if (result != null)
{
SelectResult(result);
}
}
/// <summary>
/// Moves to the previous occurrence in the file.
/// </summary>
public void FindPrevious()
{
var result = _renderer.CurrentResults.FindFirstSegmentWithStartAfter(_textArea.Caret.Offset);
if (result != null)
result = _renderer.CurrentResults.GetPreviousSegment(result);
if (result == null)
result = _renderer.CurrentResults.LastSegment;
if (result != null)
{
SelectResult(result);
}
}
public void ReplaceNext()
{
if (!IsReplaceMode) return;
FindNext();
if (!_textArea.Selection.IsEmpty)
{
_textArea.Selection.ReplaceSelectionWithText(ReplacePattern ?? string.Empty);
}
UpdateSearch();
}
public void ReplaceAll()
{
if (!IsReplaceMode) return;
var replacement = ReplacePattern ?? string.Empty;
var document = _textArea.Document;
using (document.RunUpdate())
{
var segments = _renderer.CurrentResults.OrderByDescending(x => x.EndOffset).ToArray();
foreach (var textSegment in segments)
{
document.Replace(textSegment.StartOffset, textSegment.Length,
new StringTextSource(replacement));
}
}
}
private Popup _messageView;
private ContentPresenter _messageViewContent;
private string _validationError;
private void DoSearch(bool changeSelection)
{
if (IsClosed)
return;
_renderer.CurrentResults.Clear();
if (!string.IsNullOrEmpty(SearchPattern))
{
var offset = _textArea.Caret.Offset;
if (changeSelection)
{
_textArea.ClearSelection();
}
// We cast from ISearchResult to SearchResult; this is safe because we always use the built-in strategy
foreach (var result in _strategy.FindAll(_textArea.Document, 0, _textArea.Document.TextLength).Cast<SearchResult>())
{
if (changeSelection && result.StartOffset >= offset)
{
SelectResult(result);
changeSelection = false;
}
_renderer.CurrentResults.Add(result);
}
}
if (_messageView != null)
{
if (!_renderer.CurrentResults.Any())
{
_messageViewContent.Content = SR.SearchNoMatchesFoundText;
_messageView.PlacementTarget = _searchTextBox;
_messageView.IsOpen = true;
}
else
_messageView.IsOpen = false;
}
_textArea.TextView.InvalidateLayer(KnownLayer.Selection);
}
private void SelectResult(TextSegment result)
{
_textArea.Caret.Offset = result.StartOffset;
_textArea.Selection = Selection.Create(_textArea, result.StartOffset, result.EndOffset);
double distanceToViewBorder = _border == null ?
Caret.MinimumDistanceToViewBorder :
_border.Bounds.Height + _textArea.TextView.DefaultLineHeight;
_textArea.Caret.BringCaretToView(distanceToViewBorder);
// show caret even if the editor does not have the Keyboard Focus
_textArea.Caret.Show();
}
private void SearchLayerKeyDown(object sender, KeyEventArgs e)
{
switch (e.Key)
Close();
break;
}
}
/// <summary>
{
FindNext();
}
if (_searchTextBox != null)
{
if (_validationError != null)
{
_messageViewContent.Content = SR.SearchErrorText + " " + _validationError;
{
var hasFocus = IsFocused;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
Close();
break;
}
}
/// <summary>
/// Gets whether the Panel is already closed.
/// </summary>
public bool IsClosed { get; private set; }
/// <summary>
/// Gets whether the Panel is currently opened.
/// </summary>
public bool IsOpened => !IsClosed;
/// <summary>
/// Closes the SearchPanel.
/// </summary>
public void Close()
{
_textArea.RemoveChild(this);
_messageView.IsOpen = false;
{
if (!IsClosed) return;
AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
_textArea.Focus();
}
/// <summary>
/// Opens the an existing search panel.
/// </summary>
public void Open()
{
if (!IsClosed) return;
_textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
DoSearch(false);
}
protected override void OnPointerPressed(PointerPressedEventArgs e)
{
e.Handled = true;
base.OnPointerPressed(e);
}
protected override void OnPointerMoved(PointerEventArgs e)
{
Cursor = Cursor.Default;
base.OnPointerMoved(e);
}
protected override void OnGotFocus(GotFocusEventArgs e)
{
e.Handled = true;
base.OnGotFocus(e);
}
/// <summary>
/// Fired when SearchOptions are changed inside the SearchPanel.
/// </summary>
public event EventHandler<SearchOptionsChangedEventArgs> SearchOptionsChanged;
/// <summary>
/// Raises the <see cref="SearchOptionsChanged" /> event.
/// </summary>
protected virtual void OnSearchOptionsChanged(SearchOptionsChangedEventArgs e)
{
SearchOptionsChanged?.Invoke(this, e);
}
public IList<RoutedCommandBinding> CommandBindings { get; } = new List<RoutedCommandBinding>();
}
/// <summary>
/// EventArgs for <see cref="SearchPanel.SearchOptionsChanged"/> event.
/// </summary>
public class SearchOptionsChangedEventArgs : EventArgs
{
/// <summary>
/// Gets the search pattern.
/// </summary>
public string SearchPattern { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted case-sensitive.
/// </summary>
public bool MatchCase { get; }
/// <summary>
/// Gets whether the search pattern should be interpreted as regular expression.
/// </summary>
public bool UseRegex { get; }
/// <summary>
/// Gets whether the search pattern should only match whole words.
/// </summary>
public bool WholeWords { get; }
/// <summary>
/// Creates a new SearchOptionsChangedEventArgs instance.
/// </summary>
public SearchOptionsChangedEventArgs(string searchPattern, bool matchCase, bool useRegex, bool wholeWords)
{
SearchPattern = searchPattern;
MatchCase = matchCase;
UseRegex = useRegex;
WholeWords = wholeWords;
}
}
}
<MSG> Dont install SearchPanel in adorner layer as doesnt receive input
<DFF> @@ -24,6 +24,7 @@ using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
+using Avalonia.VisualTree;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using AvaloniaEdit.Rendering;
@@ -102,7 +103,7 @@ namespace AvaloniaEdit.Search
set => SetValue(SearchPatternProperty, value);
}
- public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
+ public static readonly AvaloniaProperty<bool> IsReplaceModeProperty =
AvaloniaProperty.Register<SearchPanel, bool>(nameof(IsReplaceMode));
public bool IsReplaceMode
@@ -111,7 +112,7 @@ namespace AvaloniaEdit.Search
set => SetValue(IsReplaceModeProperty, value);
}
- public static readonly AvaloniaProperty<string> ReplacePatternProperty =
+ public static readonly AvaloniaProperty<string> ReplacePatternProperty =
AvaloniaProperty.Register<SearchPanel, string>(nameof(ReplacePattern));
public string ReplacePattern
@@ -242,7 +243,6 @@ namespace AvaloniaEdit.Search
private void AttachInternal(TextArea textArea)
{
_textArea = textArea;
- this[AdornerLayer.AdornedElementProperty] = textArea;
_renderer = new SearchResultBackgroundRenderer();
_currentDocument = textArea.Document;
@@ -453,6 +453,8 @@ namespace AvaloniaEdit.Search
Close();
break;
}
+
+ e.Handled = true;
}
/// <summary>
@@ -467,7 +469,7 @@ namespace AvaloniaEdit.Search
{
var hasFocus = IsFocused;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Remove(this);
+ _textArea.RemoveChild(this);
_messageView.IsOpen = false;
_textArea.TextView.BackgroundRenderers.Remove(_renderer);
if (hasFocus)
@@ -496,7 +498,7 @@ namespace AvaloniaEdit.Search
{
if (!IsClosed) return;
- AdornerLayer.GetAdornerLayer(_textArea)?.Children.Add(this);
+ _textArea.AddChild(this);
_textArea.TextView.BackgroundRenderers.Add(_renderer);
IsClosed = false;
| 7 | Dont install SearchPanel in adorner layer as doesnt receive input | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10061649 | <NME> injection.md
<BEF> ## DOM injection
Once you have [assembled](layout-assembly.md) and [rendered](rendering.md) your View you'll want to inject it into the DOM at some point. *FruitMachine* has multiple ways of doing this:
- `.inject(<Element>)` Empties the contents of the given element, then appends `view.el`.
- `.appendTo(<Element>)` Appends `view.el` to the given Element.
- `.appendTo(<Element>, <Element>)` Appends `view.el` to the given Element, inserting before the second Element parameter.
### `View#inject()`
```js
var container = document.querySelector('.container');
var apple = new Apple();
apple.render();
apple.inject(container);
```
### `View#appendTo()`
```js
var list = document.querySelector('.list');
var apple = new Apple();
apple.render();
apple.appendTo(list);
```
<MSG> Update docs
<DFF> @@ -4,7 +4,7 @@ Once you have [assembled](layout-assembly.md) and [rendered](rendering.md) your
- `.inject(<Element>)` Empties the contents of the given element, then appends `view.el`.
- `.appendTo(<Element>)` Appends `view.el` to the given Element.
-- `.appendTo(<Element>, <Element>)` Appends `view.el` to the given Element, inserting before the second Element parameter.
+- `.insertBefore(<Element>, <Element>)` Appends `view.el` to the given Element as a previous sibling of the second Element parameter.
### `View#inject()`
| 1 | Update docs | 1 | .md | md | mit | ftlabs/fruitmachine |
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