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10057750 | <NME> TextEditor.xaml
<BEF> <Styles xmlns="https://github.com/avaloniaui"
xmlns:AvalonEdit="clr-namespace:AvaloniaEdit;assembly=AvaloniaEdit"
xmlns:Editing="clr-namespace:AvaloniaEdit.Editing;assembly=AvaloniaEdit">
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
VerticalContentAlignment="Top"
HorizontalContentAlignment="Left"
Padding="{TemplateBinding Padding}" />
</Border>
</ControlTemplate>
</Setter>
</Style>
</Styles>
<MSG> Fix background color in template
<DFF> @@ -4,7 +4,8 @@
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
- <Border BorderBrush="{TemplateBinding BorderBrush}"
+ <Border Background="{TemplateBinding Background}"
+ BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
| 2 | Fix background color in template | 1 | .xaml | xaml | mit | AvaloniaUI/AvaloniaEdit |
10057751 | <NME> TextEditor.xaml
<BEF> <Styles xmlns="https://github.com/avaloniaui"
xmlns:AvalonEdit="clr-namespace:AvaloniaEdit;assembly=AvaloniaEdit"
xmlns:Editing="clr-namespace:AvaloniaEdit.Editing;assembly=AvaloniaEdit">
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
VerticalContentAlignment="Top"
HorizontalContentAlignment="Left"
Padding="{TemplateBinding Padding}" />
</Border>
</ControlTemplate>
</Setter>
</Style>
</Styles>
<MSG> Fix background color in template
<DFF> @@ -4,7 +4,8 @@
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
- <Border BorderBrush="{TemplateBinding BorderBrush}"
+ <Border Background="{TemplateBinding Background}"
+ BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
| 2 | Fix background color in template | 1 | .xaml | xaml | mit | AvaloniaUI/AvaloniaEdit |
10057752 | <NME> TextEditor.xaml
<BEF> <Styles xmlns="https://github.com/avaloniaui"
xmlns:AvalonEdit="clr-namespace:AvaloniaEdit;assembly=AvaloniaEdit"
xmlns:Editing="clr-namespace:AvaloniaEdit.Editing;assembly=AvaloniaEdit">
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
VerticalContentAlignment="Top"
HorizontalContentAlignment="Left"
Padding="{TemplateBinding Padding}" />
</Border>
</ControlTemplate>
</Setter>
</Style>
</Styles>
<MSG> Fix background color in template
<DFF> @@ -4,7 +4,8 @@
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
- <Border BorderBrush="{TemplateBinding BorderBrush}"
+ <Border Background="{TemplateBinding Background}"
+ BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
| 2 | Fix background color in template | 1 | .xaml | xaml | mit | AvaloniaUI/AvaloniaEdit |
10057753 | <NME> TextEditor.xaml
<BEF> <Styles xmlns="https://github.com/avaloniaui"
xmlns:AvalonEdit="clr-namespace:AvaloniaEdit;assembly=AvaloniaEdit"
xmlns:Editing="clr-namespace:AvaloniaEdit.Editing;assembly=AvaloniaEdit">
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
<Border BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
VerticalScrollBarVisibility="{TemplateBinding VerticalScrollBarVisibility}"
HorizontalScrollBarVisibility="{TemplateBinding HorizontalScrollBarVisibility}"
VerticalContentAlignment="Top"
HorizontalContentAlignment="Left"
Padding="{TemplateBinding Padding}" />
</Border>
</ControlTemplate>
</Setter>
</Style>
</Styles>
<MSG> Fix background color in template
<DFF> @@ -4,7 +4,8 @@
<Style Selector="AvalonEdit|TextEditor">
<Setter Property="Template">
<ControlTemplate>
- <Border BorderBrush="{TemplateBinding BorderBrush}"
+ <Border Background="{TemplateBinding Background}"
+ BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<ScrollViewer Focusable="False"
Name="PART_ScrollViewer"
| 2 | Fix background color in template | 1 | .xaml | xaml | mit | AvaloniaUI/AvaloniaEdit |
10057754 | <NME> History.md
<BEF> 0.5.0 / 2013-05-20
==================
* change `fruitmachine.View` => `fruitmachine.Module`
* add support for third party models
0.4.2 / 2013-05-20
==================
* add support for third party models
* change `fruitmachine.View` => `fruitmachine.Module`
* change component.json to bower.json
0.4.2 / 2013-05-20
==================
* change allow `name` key as an alternative to `module` in module definitions
0.4.1 / 2013-05-17
==================
* fix bug with delegate event listeners not being passed correct aguments
0.4.0 / 2013-05-17
==================
* change `slot` now defines placement over `id`
* change `children` can now be an object (keys as `slot`) or an array.
* change `id` is optional, used only for queries.
* change 'LazyViews' can only be instantiated `var view = fruitmachine(layout)` no longer via `fruitmachine.View`.
* add event hooks on `View` for `'tojson'` and `'inflation'`
* add events to `fruitmachine` namespace to allow `fruitmachine.on('inflation')`
<MSG> Update history
<DFF> @@ -1,8 +1,9 @@
0.5.0 / 2013-05-20
==================
- * change `fruitmachine.View` => `fruitmachine.Module`
* add support for third party models
+ * change `fruitmachine.View` => `fruitmachine.Module`
+ * change component.json to bower.json
0.4.2 / 2013-05-20
==================
| 2 | Update history | 1 | .md | md | mit | ftlabs/fruitmachine |
10057755 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057756 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057757 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057758 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057759 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057760 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057761 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057762 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057763 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057764 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057765 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057766 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057767 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057768 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057769 | <NME> AssemblyInfo.cs
<BEF> ADDFILE
<MSG> Added an attribute to make internal types visible for unit testing
<DFF> @@ -0,0 +1,3 @@
+using System.Runtime.CompilerServices;
+
+[assembly: InternalsVisibleTo("AvaloniaEdit.Tests")]
\ No newline at end of file
| 3 | Added an attribute to make internal types visible for unit testing | 0 | .cs | Tests/AssemblyInfo | mit | AvaloniaUI/AvaloniaEdit |
10057770 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057771 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057772 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057773 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057774 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057775 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057776 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057777 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057778 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057779 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057780 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057781 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057782 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057783 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057784 | <NME> Directory.Build.props
<BEF> <Project>
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
<AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
</PropertyGroup>
</Project>
<VersionSuffix>beta</VersionSuffix>
</PropertyGroup>
</Project>
<MSG> update to preview4
<DFF> @@ -2,6 +2,6 @@
<PropertyGroup>
<LangVersion>7.1</LangVersion>
<TreatWarningsAsErrors>true</TreatWarningsAsErrors>
- <AvaloniaVersion>0.9.0-preview3</AvaloniaVersion>
+ <AvaloniaVersion>0.9.0-preview4</AvaloniaVersion>
</PropertyGroup>
</Project>
\ No newline at end of file
| 1 | update to preview4 | 1 | .props | Build | mit | AvaloniaUI/AvaloniaEdit |
10057785 | <NME> AvaloniaEdit.sln
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GlobalSection(ExtensibilityGlobals) = postSolution
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
+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}"
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@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
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-EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -60,14 +58,6 @@ Global
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HideSolutionNode = FALSE
| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057786 | <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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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
EndProjectSection
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EndProject
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GlobalSection(ExtensibilityGlobals) = postSolution
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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@@ -60,14 +58,6 @@ Global
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057787 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057788 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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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MinimumVisualStudioVersion = 10.0.40219.1
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057789 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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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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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057790 | <NME> AvaloniaEdit.sln
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GlobalSection(ExtensibilityGlobals) = postSolution
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EndGlobalSection
EndGlobal
<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
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Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -60,14 +58,6 @@ Global
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GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057791 | <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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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
EndProjectSection
EndProject
EndProject
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
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HideSolutionNode = FALSE
GlobalSection(ExtensibilityGlobals) = postSolution
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.TextMate", "src\AvaloniaEdit.TextMate\AvaloniaEdit.TextMate.csproj", "{63826C17-C08C-4E5F-AABB-443EBA565E92}"
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-EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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@@ -60,14 +58,6 @@ Global
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057792 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio Version 17
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MinimumVisualStudioVersion = 10.0.40219.1
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057793 | <NME> AvaloniaEdit.sln
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Microsoft Visual Studio Solution File, Format Version 12.00
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MinimumVisualStudioVersion = 10.0.40219.1
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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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}"
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@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057794 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057795 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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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MinimumVisualStudioVersion = 10.0.40219.1
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057796 | <NME> AvaloniaEdit.sln
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<DFF> @@ -1,7 +1,7 @@
Microsoft Visual Studio Solution File, Format Version 12.00
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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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Global
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| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057797 | <NME> AvaloniaEdit.sln
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Directory.Build.props = Directory.Build.props
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HideSolutionNode = FALSE
GlobalSection(ExtensibilityGlobals) = postSolution
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EndGlobalSection
EndGlobal
<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
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Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -60,14 +58,6 @@ Global
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GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057798 | <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
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ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
EndProjectSection
EndProject
EndProject
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
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HideSolutionNode = FALSE
GlobalSection(ExtensibilityGlobals) = postSolution
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<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.TextMate", "src\AvaloniaEdit.TextMate\AvaloniaEdit.TextMate.csproj", "{63826C17-C08C-4E5F-AABB-443EBA565E92}"
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-EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
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@@ -60,14 +58,6 @@ Global
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- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057799 | <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
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.Demo", "src\AvaloniaEdit.Demo\AvaloniaEdit.Demo.csproj", "{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}"
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.Tests", "test\AvaloniaEdit.Tests\AvaloniaEdit.Tests.csproj", "{9E5D4372-D362-44A2-984D-578288870AB8}"
EndProject
Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{E9668961-BD19-4360-8ABE-B9BD55EB52CA}"
ProjectSection(SolutionItems) = preProject
azure-pipelines.yml = azure-pipelines.yml
Directory.Build.props = Directory.Build.props
EndProjectSection
EndProject
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.TextMate", "src\AvaloniaEdit.TextMate\AvaloniaEdit.TextMate.csproj", "{63826C17-C08C-4E5F-AABB-443EBA565E92}"
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TextMateSharp", "..\..\source\repos\TextMateSharp\src\TextMateSharp\TextMateSharp.csproj", "{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Debug|x64.ActiveCfg = Debug|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Debug|x64.Build.0 = Debug|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Release|Any CPU.Build.0 = Release|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Release|x64.ActiveCfg = Release|Any CPU
{4B04026F-BA96-4721-AE28-0970CB5806A9}.Release|x64.Build.0 = Release|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Debug|Any CPU.Build.0 = Debug|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Debug|x64.ActiveCfg = Debug|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Debug|x64.Build.0 = Debug|Any CPU
{03763F37-9BD9-4D1D-ADC9-1050F6F8C062}.Release|Any CPU.ActiveCfg = Release|Any CPU
{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|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
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|Any CPU.Build.0 = Debug|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|x64.ActiveCfg = Debug|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|x64.Build.0 = Debug|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|Any CPU.ActiveCfg = Release|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|Any CPU.Build.0 = Release|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|x64.ActiveCfg = Release|Any CPU
{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {DCA3703C-8F8E-4AC5-81D7-65131FEBA631}
EndGlobalSection
EndGlobal
<MSG> Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf
<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
@@ -18,8 +18,6 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "AvaloniaEdit.TextMate", "src\AvaloniaEdit.TextMate\AvaloniaEdit.TextMate.csproj", "{63826C17-C08C-4E5F-AABB-443EBA565E92}"
EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "TextMateSharp", "..\..\source\repos\TextMateSharp\src\TextMateSharp\TextMateSharp.csproj", "{BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}"
-EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
@@ -60,14 +58,6 @@ Global
{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
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|Any CPU.Build.0 = Debug|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|x64.ActiveCfg = Debug|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Debug|x64.Build.0 = Debug|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|Any CPU.ActiveCfg = Release|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|Any CPU.Build.0 = Release|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|x64.ActiveCfg = Release|Any CPU
- {BE42F73D-27CB-4630-8177-FAEE7B2BDAF7}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
| 2 | Merge branch 'improve-TM-perf' of https://github.com/AvaloniaUI/AvaloniaEdit into improve-TM-perf | 12 | .sln | sln | mit | AvaloniaUI/AvaloniaEdit |
10057800 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057801 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057802 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057803 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057804 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057805 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057806 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057807 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057808 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057809 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057810 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057811 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057812 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057813 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057814 | <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.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;
#region Constructor
static TextArea()
{
KeyboardNavigation.TabNavigationProperty.OverrideDefaultValue<TextArea>(KeyboardNavigationMode.None);
FocusableProperty.OverrideDefaultValue<TextArea>(true);
DocumentProperty.Changed.Subscribe(OnDocumentChanged);
OptionsProperty.Changed.Subscribe(OnOptionsChanged);
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
}
/// <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);
// First activate IME, then show caret
//ime.OnGotKeyboardFocus(e);
Caret.Show();
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
Caret.Hide();
//ime.OnLostKeyboardFocus(e);
}
#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)
{
//System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
private void HideMouseCursor()
{
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
//System.Windows.Forms.Cursor.Hide();
}
}
#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);
}
}
/// <summary>
/// <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> Merge pull request #260 from AvaloniaUI/feature/ime
Implement ITextInputMethodClient for TextArea
<DFF> @@ -22,6 +22,7 @@ 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;
@@ -54,6 +55,8 @@ namespace AvaloniaEdit.Editing
private ILogicalScrollable _logicalScrollable;
+ private readonly TextAreaTextInputMethodClient _imClient = new TextAreaTextInputMethodClient();
+
#region Constructor
static TextArea()
{
@@ -65,6 +68,14 @@ namespace AvaloniaEdit.Editing
AffectsArrange<TextArea>(OffsetProperty);
AffectsRender<TextArea>(OffsetProperty);
+
+ TextInputMethodClientRequestedEvent.AddClassHandler<TextArea>((ta, e) =>
+ {
+ if (!ta.IsReadOnly)
+ {
+ e.Client = ta._imClient;
+ }
+ });
}
/// <summary>
@@ -742,16 +753,19 @@ namespace AvaloniaEdit.Editing
protected override void OnGotFocus(GotFocusEventArgs e)
{
base.OnGotFocus(e);
- // First activate IME, then show caret
- //ime.OnGotKeyboardFocus(e);
+
Caret.Show();
+
+ _imClient.SetTextArea(this);
}
protected override void OnLostFocus(RoutedEventArgs e)
{
base.OnLostFocus(e);
+
Caret.Hide();
- //ime.OnLostKeyboardFocus(e);
+
+ _imClient.SetTextArea(null);
}
#endregion
@@ -985,7 +999,6 @@ namespace AvaloniaEdit.Editing
{
if (_isMouseCursorHidden)
{
- //System.Windows.Forms.Cursor.Show();
_isMouseCursorHidden = false;
}
}
@@ -995,7 +1008,6 @@ namespace AvaloniaEdit.Editing
if (Options.HideCursorWhileTyping && !_isMouseCursorHidden && IsPointerOver)
{
_isMouseCursorHidden = true;
- //System.Windows.Forms.Cursor.Hide();
}
}
@@ -1122,6 +1134,122 @@ namespace AvaloniaEdit.Editing
{
_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 selection = _textArea.Selection;
+
+ var documentLine = _textArea.Document.GetLineByNumber(selection.StartPosition.Line);
+
+ var text = _textArea.Document.GetText(documentLine.Offset, documentLine.Length);
+
+ return new TextInputMethodSurroundingText
+ {
+ AnchorOffset = selection.StartPosition.Column,
+ CursorOffset = selection.EndPosition.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>
| 133 | Merge pull request #260 from AvaloniaUI/feature/ime | 5 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057815 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057816 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057817 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057818 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057819 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057820 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057821 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057822 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057823 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057824 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057825 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057826 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057827 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057828 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057829 | <NME> AvaloniaEdit.TextMate.csproj
<BEF> <Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<LangVersion>latest</LangVersion>
</PropertyGroup>
<ItemGroup>
<ProjectReference Include="..\AvaloniaEdit\AvaloniaEdit.csproj" />
</ItemGroup>
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
</Project>
<MSG> Merge branch 'master' into update-textmate-v1.0.27
<DFF> @@ -11,6 +11,7 @@
<ItemGroup>
<PackageReference Include="TextMateSharp" Version="$(TextMateSharpVersion)" />
+ <PackageReference Include="TextMateSharp.Grammars" Version="$(TextMateSharpVersion)" />
</ItemGroup>
</Project>
| 1 | Merge branch 'master' into update-textmate-v1.0.27 | 0 | .csproj | TextMate/AvaloniaEdit | mit | AvaloniaUI/AvaloniaEdit |
10057830 | <NME> jsgrid.tests.js
<BEF> $(function() {
var Grid = jsGrid.Grid,
JSGRID = "JSGrid",
JSGRID_DATA_KEY = JSGRID;
Grid.prototype.updateOnResize = false;
module("basic");
test("default creation", function() {
var gridOptions = {
simpleOption: "test",
complexOption: {
a: "subtest",
b: 1,
c: {}
}
},
grid = new Grid("#jsGrid", gridOptions);
equal(grid._container[0], $("#jsGrid")[0], "container saved");
equal(grid.simpleOption, "test", "primitive option extended");
equal(grid.complexOption, gridOptions.complexOption, "non-primitive option extended");
});
test("jquery adapter creation", function() {
var gridOptions = {
option: "test"
},
$element = $("#jsGrid"),
result = $element.jsGrid(gridOptions),
grid = $element.data(JSGRID_DATA_KEY);
equal(result, $element, "jquery fn returned source jQueryElement");
ok(grid instanceof Grid, "jsGrid saved to jquery data");
equal(grid.option, "test", "options provided");
});
test("destroy", function() {
var $element = $("#jsGrid"),
grid;
$element.jsGrid({});
grid = $element.data(JSGRID_DATA_KEY);
grid.destroy();
strictEqual($element.html(), "", "content is removed");
strictEqual($element.data(JSGRID_DATA_KEY), undefined, "jquery data is removed");
});
test("jquery adapter second call changes option value", function() {
var $element = $("#jsGrid"),
gridOptions = {
option: "test"
},
grid;
$element.jsGrid(gridOptions);
grid = $element.data(JSGRID_DATA_KEY);
gridOptions.option = "new test";
$element.jsGrid(gridOptions);
equal(grid, $element.data(JSGRID_DATA_KEY), "instance was not changed");
equal(grid.option, "new test", "option changed");
});
test("jquery adapter invokes jsGrid method", function() {
var methodResult = "",
$element = $("#jsGrid"),
gridOptions = {
method: function(str) {
methodResult = "test_" + str;
}
};
$element.jsGrid(gridOptions);
$element.jsGrid("method", "invoke");
equal(methodResult, "test_invoke", "method invoked");
});
test("onInit callback", function() {
var $element = $("#jsGrid"),
onInitArguments,
gridOptions = {
onInit: function(args) {
onInitArguments = args;
}
};
var grid = new Grid($element, gridOptions);
equal(onInitArguments.grid, grid, "grid instance is provided in onInit callback arguments");
});
test("controller methods are $.noop when not specified", function() {
var $element = $("#jsGrid"),
gridOptions = {
controller: {}
},
testOption;
$element.jsGrid(gridOptions);
deepEqual($element.data(JSGRID_DATA_KEY)._controller, {
loadData: $.noop,
insertItem: $.noop,
updateItem: $.noop,
deleteItem: $.noop
}, "controller has stub methods");
});
test("option method", function() {
var $element = $("#jsGrid"),
gridOptions = {
test: "value"
},
testOption;
$element.jsGrid(gridOptions);
testOption = $element.jsGrid("option", "test");
equal(testOption, "value", "read option value");
$element.jsGrid("option", "test", "new_value");
testOption = $element.jsGrid("option", "test");
equal(testOption, "new_value", "set option value");
});
test("fieldOption method", function() {
var dataLoadedCount = 0;
var $element = $("#jsGrid"),
gridOptions = {
loadMessage: "",
autoload: true,
controller: {
loadData: function() {
dataLoadedCount++;
return [{ prop1: "value1", prop2: "value2", prop3: "value3" }];
}
},
fields: [
{ name: "prop1", title: "_" }
]
};
$element.jsGrid(gridOptions);
var fieldOptionValue = $element.jsGrid("fieldOption", "prop1", "name");
equal(fieldOptionValue, "prop1", "read field option");
$element.jsGrid("fieldOption", "prop1", "name", "prop2");
equal($element.text(), "_value2", "set field option by field name");
equal(dataLoadedCount, 1, "data not reloaded on field option change");
$element.jsGrid("fieldOption", 0, "name", "prop3");
equal($element.text(), "_value3", "set field option by field index");
});
test("option changing event handlers", function() {
var $element = $("#jsGrid"),
optionChangingEventArgs,
optionChangedEventArgs,
gridOptions = {
test: "testValue",
another: "anotherValue",
onOptionChanging: function(e) {
optionChangingEventArgs = $.extend({}, e);
e.option = "another";
e.newValue = e.newValue + "_" + this.another;
},
onOptionChanged: function(e) {
optionChangedEventArgs = $.extend({}, e);
}
},
anotherOption;
$element.jsGrid(gridOptions);
$element.jsGrid("option", "test", "newTestValue");
equal(optionChangingEventArgs.option, "test", "option name is provided in args of optionChanging");
equal(optionChangingEventArgs.oldValue, "testValue", "old option value is provided in args of optionChanging");
equal(optionChangingEventArgs.newValue, "newTestValue", "new option value is provided in args of optionChanging");
anotherOption = $element.jsGrid("option", "another");
equal(anotherOption, "newTestValue_anotherValue", "option changing handler changed option and value");
equal(optionChangedEventArgs.option, "another", "option name is provided in args of optionChanged");
equal(optionChangedEventArgs.value, "newTestValue_anotherValue", "option value is provided in args of optionChanged");
});
test("common layout rendering", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {}),
$headerGrid,
$headerGridTable,
$bodyGrid,
$bodyGridTable;
ok($element.hasClass(grid.containerClass), "container class attached");
ok($element.children().eq(0).hasClass(grid.gridHeaderClass), "grid header");
ok($element.children().eq(1).hasClass(grid.gridBodyClass), "grid body");
ok($element.children().eq(2).hasClass(grid.pagerContainerClass), "pager container");
$headerGrid = $element.children().eq(0);
$headerGridTable = $headerGrid.children().first();
ok($headerGridTable.hasClass(grid.tableClass), "header table");
equal($headerGrid.find("." + grid.headerRowClass).length, 1, "header row");
equal($headerGrid.find("." + grid.filterRowClass).length, 1, "filter row");
equal($headerGrid.find("." + grid.insertRowClass).length, 1, "insert row");
ok(grid._headerRow.hasClass(grid.headerRowClass), "header row class");
ok(grid._filterRow.hasClass(grid.filterRowClass), "filter row class");
ok(grid._insertRow.hasClass(grid.insertRowClass), "insert row class");
$bodyGrid = $element.children().eq(1);
$bodyGridTable = $bodyGrid.children().first();
ok($bodyGridTable.hasClass(grid.tableClass), "body table");
equal(grid._content.parent()[0], $bodyGridTable[0], "content is tbody in body table");
equal($bodyGridTable.find("." + grid.noDataRowClass).length, 1, "no data row");
equal($bodyGridTable.text(), grid.noDataContent, "no data text");
});
test("set default options with setDefaults", function() {
jsGrid.setDefaults({
defaultOption: "test"
});
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "defaultOption"), "test", "default option set");
});
module("loading");
test("loading with controller", function() {
var $element = $("#jsGrid"),
data = [
{ test: "test1" },
{ test: "test2" }
],
gridOptions = {
controller: {
loadData: function() {
return data;
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(grid.option("data"), data, "loadData loads data");
});
test("loadData throws exception when controller method not found", function() {
var $element = $("#jsGrid");
var grid = new Grid($element);
grid._controller = {};
throws(function() {
grid.loadData();
}, /loadData/, "loadData threw an exception");
});
test("onError event should be fired on controller fail", function() {
var errorArgs,
errorFired = 0,
$element = $("#jsGrid"),
gridOptions = {
controller: {
loadData: function() {
return $.Deferred().reject({ value: 1 }, "test").promise();
}
},
onError: function(args) {
errorFired++;
errorArgs = args;
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(errorFired, 1, "onError handler fired");
deepEqual(errorArgs, { grid: grid, args: [{ value: 1 }, "test"] }, "error has correct params");
});
asyncTest("autoload should call loadData after render", 1, function() {
new Grid($("#jsGrid"), {
autoload: true,
controller: {
loadData: function() {
ok(true, "autoload calls loadData on creation");
start();
return [];
}
}
});
});
test("loading filtered data", function() {
var filteredData,
loadingArgs,
loadedArgs,
$element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
filtering: true,
fields: [
{
name: "field",
filterValue: function(value) {
return "test";
}
}
],
onDataLoading: function(e) {
loadingArgs = $.extend(true, {}, e);
},
onDataLoaded: function(e) {
loadedArgs = $.extend(true, {}, e);
},
controller: {
loadData: function(filter) {
filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(loadingArgs.filter.field, "test");
equal(grid.option("data").length, 2, "filtered data loaded");
deepEqual(loadedArgs.data, filteredData);
});
asyncTest("loading indication", function() {
var timeout = 10,
stage = "initial",
$element = $("#jsGrid"),
gridOptions = {
loadIndication: true,
loadIndicationDelay: timeout,
loadMessage: "loading...",
loadIndicator: function(config) {
equal(config.message, gridOptions.loadMessage, "message provided");
ok(config.container.jquery, "grid container is provided");
return {
show: function() {
stage = "started";
},
hide: function() {
stage = "finished";
}
};
},
fields: [
{ name: "field" }
],
controller: {
loadData: function() {
var deferred = $.Deferred();
equal(stage, "initial", "initial stage");
setTimeout(function() {
equal(stage, "started", "loading started");
deferred.resolve([]);
equal(stage, "finished", "loading finished");
start();
}, timeout);
return deferred.promise();
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
});
asyncTest("loadingIndication=false should not show loading", 0, function() {
var $element = $("#jsGrid"),
timeout = 10,
gridOptions = {
loadIndication: false,
loadIndicationDelay: timeout,
loadIndicator: function() {
return {
show: function() {
ok(false, "should not call show");
},
hide: function() {
ok(false, "should not call hide");
}
};
},
fields: [
{ name: "field" }
],
controller: {
loadData: function() {
var deferred = $.Deferred();
setTimeout(function() {
deferred.resolve([]);
start();
}, timeout);
return deferred.promise();
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
});
test("search", function() {
var $element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
pageIndex: 2,
_sortField: "field",
_sortOrder: "desc",
filtering: true,
fields: [
{
name: "field",
filterValue: function(value) {
return "test";
}
}
],
controller: {
loadData: function(filter) {
var filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.search();
equal(grid.option("data").length, 2, "data filtered");
strictEqual(grid.option("pageIndex"), 1, "pageIndex reset");
strictEqual(grid._sortField, null, "sortField reset");
strictEqual(grid._sortOrder, "asc", "sortOrder reset");
});
test("change loadStrategy on the fly", function() {
var $element = $("#jsGrid");
var gridOptions = {
controller: {
loadData: function() {
return [];
}
}
};
var grid = new Grid($element, gridOptions);
grid.option("loadStrategy", {
firstDisplayIndex: function() {
return 0;
},
lastDisplayIndex: function() {
return 1;
},
loadParams: function() {
return [];
},
finishLoad: function() {
grid.option("data", [{}]);
}
});
grid.loadData();
equal(grid.option("data").length, 1, "new load strategy is applied");
});
module("filtering");
test("filter rendering", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
fields: [
{
name: "test",
align: "right",
filtercss: "filter-class",
filterTemplate: function() {
var result = this.filterControl = $("<input>").attr("type", "text").addClass("filter-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
equal(grid._filterRow.find(".filter-class").length, 1, "filtercss class is attached");
equal(grid._filterRow.find(".filter-input").length, 1, "filter control rendered");
equal(grid._filterRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok(grid._filterRow.find(".filter-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].filterControl.is("input[type=text]"), "filter control saved in field");
});
test("filter get/clear", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
controller: {
loadData: function() {
return [];
}
},
fields: [
{
name: "field",
filterTemplate: function() {
return this.filterControl = $("<input>").attr("type", "text");
},
filterValue: function() {
return this.filterControl.val();
}
}
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test");
deepEqual(grid.getFilter(), { field: "test" }, "get filter");
grid.clearFilter();
deepEqual(grid.getFilter(), { field: "" }, "filter cleared");
equal(grid.fields[0].filterControl.val(), "", "grid field filterControl cleared");
});
test("field without filtering", function() {
var $element = $("#jsGrid"),
jsGridFieldConfig = {
filterTemplate: function() {
var result = this.filterControl = $("<input>").attr("type", "text");
return result;
},
filterValue: function(value) {
if(!arguments.length) {
return this.filterControl.val();
}
this.filterControl.val(value);
}
},
gridOptions = {
filtering: true,
fields: [
$.extend({}, jsGridFieldConfig, {
name: "field1",
filtering: false
}),
$.extend({}, jsGridFieldConfig, {
name: "field2"
})
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test1");
grid.fields[1].filterControl.val("test2");
deepEqual(grid.getFilter(), { field2: "test2" }, "field with filtering=false is not included in filter");
});
test("search with filter", function() {
var $element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
fields: [
{
name: "field"
}
],
controller: {
loadData: function(filter) {
var filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.search({ field: "test" });
equal(grid.option("data").length, 2, "data filtered");
});
test("filtering with static data should not do actual filtering", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
fields: [
{ type: "text", name: "field" }
],
data: [
{ name: "value1" },
{ name: "value2" }
]
},
grid = new Grid($element, gridOptions);
grid._filterRow.find("input").val("1");
grid.search();
equal(grid.option("data").length, 2, "data is not filtered");
});
module("nodatarow");
test("nodatarow after bind on empty array", function() {
var $element = $("#jsGrid"),
gridOptions = {},
grid = new Grid($element, gridOptions);
grid.option("data", []);
equal(grid._content.find("." + grid.noDataRowClass).length, 1, "no data row rendered");
equal(grid._content.find("." + grid.cellClass).length, 1, "grid cell class attached");
equal(grid._content.text(), grid.noDataContent, "no data text rendered");
});
test("nodatarow customize content", function() {
var noDataMessage = "NoData Custom Content",
$element = $("#jsGrid"),
gridOptions = {
noDataContent: function() {
return noDataMessage;
}
},
grid = new Grid($element, gridOptions);
grid.option("data", []);
equal(grid._content.find("." + grid.cellClass).length, 1, "grid cell class attached");
equal(grid._content.text(), noDataMessage, "custom noDataContent");
});
module("row rendering", {
setup: function() {
this.testData = [
{ id: 1, text: "test1" },
{ id: 2, text: "test2" },
{ id: 3, text: "test3" }
];
}
});
test("rows rendered correctly", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData
},
grid = new Grid($element, gridOptions);
equal(grid._content.children().length, 3, "rows rendered");
equal(grid._content.find("." + grid.oddRowClass).length, 2, "two odd rows for 3 items");
equal(grid._content.find("." + grid.evenRowClass).length, 1, "one even row for 3 items");
});
test("custom rowClass", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData,
rowClass: "custom-row-cls"
},
grid = new Grid($element, gridOptions);
equal(grid._content.find("." + grid.oddRowClass).length, 2);
equal(grid._content.find("." + grid.evenRowClass).length, 1);
equal(grid._content.find(".custom-row-cls").length, 3, "custom row class");
});
test("custom rowClass callback", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData,
rowClass: function(item, index) {
return item.text;
}
},
grid = new Grid($element, gridOptions);
equal(grid._content.find("." + grid.oddRowClass).length, 2);
equal(grid._content.find("." + grid.evenRowClass).length, 1);
equal(grid._content.find(".test1").length, 1, "custom row class");
equal(grid._content.find(".test2").length, 1, "custom row class");
equal(grid._content.find(".test3").length, 1, "custom row class");
});
test("rowClick standard handler", function() {
var $element = $("#jsGrid"),
$secondRow,
grid = new Grid($element, { editing: true });
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("click", $.Event($secondRow));
equal(grid._editingRow.get(0), $secondRow.get(0), "clicked row is editingRow");
});
test("rowClick handler", function() {
var rowClickArgs,
$element = $("#jsGrid"),
$secondRow,
gridOptions = {
rowClick: function(args) {
rowClickArgs = args;
}
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("click", $.Event($secondRow));
ok(rowClickArgs.event instanceof jQuery.Event, "jquery event arg");
equal(rowClickArgs.item, this.testData[1], "item arg");
equal(rowClickArgs.itemIndex, 1, "itemIndex arg");
});
test("row selecting with selectedRowClass", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
selecting: true
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("mouseenter", $.Event($secondRow));
ok($secondRow.hasClass(grid.selectedRowClass), "mouseenter adds selectedRowClass");
$secondRow.trigger("mouseleave", $.Event($secondRow));
ok(!$secondRow.hasClass(grid.selectedRowClass), "mouseleave removes selectedRowClass");
});
test("no row selecting while selection is disabled", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
selecting: false
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("mouseenter", $.Event($secondRow));
ok(!$secondRow.hasClass(grid.selectedRowClass), "mouseenter doesn't add selectedRowClass");
});
test("refreshing and refreshed callbacks", function() {
var refreshingEventArgs,
refreshedEventArgs,
$element = $("#jsGrid"),
grid = new Grid($element, {});
grid.onRefreshing = function(e) {
refreshingEventArgs = e;
equal(grid._content.find("." + grid.oddRowClass).length, 0, "no items before refresh");
};
grid.onRefreshed = function(e) {
refreshedEventArgs = e;
equal(grid._content.find("." + grid.oddRowClass).length, 2, "items rendered after refresh");
};
grid.option("data", this.testData);
equal(refreshingEventArgs.grid, grid, "grid provided in args for refreshing event");
equal(refreshedEventArgs.grid, grid, "grid provided in args for refreshed event");
equal(grid._content.find("." + grid.oddRowClass).length, 2, "items rendered");
});
test("grid fields normalization", function() {
var CustomField = function(config) {
$.extend(true, this, config);
};
jsGrid.fields.custom = CustomField;
try {
var $element = $("#jsGrid"),
gridOptions = {
fields: [
new jsGrid.Field({
name: "text1",
title: "title1"
}),
{
name: "text2",
title: "title2"
},
{
name: "text3",
type: "custom"
}
]
},
grid = new Grid($element, gridOptions);
var field1 = grid.fields[0];
ok(field1 instanceof jsGrid.Field);
equal(field1.name, "text1", "name is set for field");
equal(field1.title, "title1", "title field");
var field2 = grid.fields[1];
ok(field2 instanceof jsGrid.Field);
equal(field2.name, "text2", "name is set for field");
equal(field2.title, "title2", "title field");
var field3 = grid.fields[2];
ok(field3 instanceof CustomField);
equal(field3.name, "text3", "name is set for field");
} finally {
delete jsGrid.fields.custom;
}
});
test("'0' itemTemplate should be rendered", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}],
fields: [
new jsGrid.Field({ name: "id", itemTemplate: function() { return 0; } })
]
});
equal(grid._bodyGrid.text(), "0", "item template is rendered");
});
test("grid field name used for header if title is not specified", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
fields: [
new jsGrid.Field({ name: "id" })
]
});
equal(grid._headerRow.text(), "id", "name is rendered in header");
});
test("grid fields header and item rendering", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
fields: [
new jsGrid.Field({
name: "text",
title: "title",
css: "cell-class",
headercss: "header-class",
align: "right"
})
]
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
equal(grid._headerRow.text(), "title", "header rendered");
equal(grid._headerRow.find("." + grid.headerCellClass).length, 1, "header cell class is attached");
equal(grid._headerRow.find(".header-class").length, 1, "headercss class is attached");
ok(grid._headerRow.find(".header-class").hasClass("jsgrid-align-right"), "align class is attached");
$secondRow = grid._content.find("." + grid.evenRowClass);
equal($secondRow.text(), "test2", "item rendered");
equal($secondRow.find(".cell-class").length, 1, "css class added to cell");
equal($secondRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok($secondRow.find(".cell-class").hasClass("jsgrid-align-right"), "align class added to cell");
});
test("grid field cellRenderer", function() {
var testItem = { text: "test" },
args;
var $grid = $("#jsGrid");
var gridOptions = {
data: [testItem],
fields: [
{
name: "text",
cellRenderer: function(value, item) {
args = {
value: value,
item: item
};
return $("<td>").addClass("custom-class").text(value);
}
}
]
};
var grid = new Grid($grid, gridOptions);
var $customCell = $grid.find(".custom-class");
equal($customCell.length, 1, "custom cell rendered");
equal($customCell.text(), "test");
deepEqual(args, { value: "test", item: testItem }, "cellRenderer args provided");
});
test("grid field 'visible' option", function() {
var $grid = $("#jsGrid");
var gridOptions = {
editing: true,
fields: [
{ name: "id", visible: false },
{ name: "test" }
]
};
var grid = new Grid($grid, gridOptions);
equal($grid.find("." + grid.noDataRowClass).children().eq(0).prop("colspan"), 1, "no data row colspan only for visible cells");
grid.option("data", this.testData);
grid.editItem(this.testData[2]);
equal($grid.find("." + grid.headerRowClass).children().length, 1, "header single cell");
equal($grid.find("." + grid.filterRowClass).children().length, 1, "filter single cell");
equal($grid.find("." + grid.insertRowClass).children().length, 1, "insert single cell");
equal($grid.find("." + grid.editRowClass).children().length, 1, "edit single cell");
equal($grid.find("." + grid.oddRowClass).eq(0).children().length, 1, "odd data row single cell");
equal($grid.find("." + grid.evenRowClass).eq(0).children().length, 1, "even data row single cell");
});
module("inserting");
test("inserting rendering", function() {
var $element = $("#jsGrid"),
gridOptions = {
inserting: true,
fields: [
{
name: "test",
align: "right",
insertcss: "insert-class",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text").addClass("insert-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
equal(grid._insertRow.find(".insert-class").length, 1, "insertcss class is attached");
equal(grid._insertRow.find(".insert-input").length, 1, "insert control rendered");
equal(grid._insertRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok(grid._insertRow.find(".insert-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].insertControl.is("input[type=text]"), "insert control saved in field");
});
test("field without inserting", function() {
var $element = $("#jsGrid"),
jsGridFieldConfig = {
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
},
gridOptions = {
inserting: true,
fields: [
$.extend({}, jsGridFieldConfig, {
name: "field1",
inserting: false
}),
$.extend({}, jsGridFieldConfig, {
name: "field2"
})
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test1");
grid.fields[1].insertControl.val("test2");
deepEqual(grid._getInsertItem(), { field2: "test2" }, "field with inserting=false is not included in inserting item");
});
test("insert data with default location", function() {
var $element = $("#jsGrid"),
inserted = false,
insertingArgs,
insertedArgs,
gridOptions = {
inserting: true,
data: [{field: "default"}],
fields: [
{
name: "field",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
}
],
onItemInserting: function(e) {
insertingArgs = $.extend(true, {}, e);
},
onItemInserted: function(e) {
insertedArgs = $.extend(true, {}, e);
},
controller: {
insertItem: function() {
inserted = true;
}
}
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(insertingArgs.item.field, "test", "field is provided in inserting args");
equal(grid.option("data").length, 2, "data is inserted");
ok(inserted, "controller insertItem was called");
deepEqual(grid.option("data")[1], { field: "test" }, "correct data is inserted");
equal(insertedArgs.item.field, "test", "field is provided in inserted args");
});
test("insert data with specified insert location", function() {
var $element = $("#jsGrid"),
inserted = false,
insertingArgs,
insertedArgs,
gridOptions = {
inserting: true,
insertRowLocation: "top",
data: [{field: "default"}],
fields: [
{
name: "field",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
}
],
onItemInserting: function(e) {
insertingArgs = $.extend(true, {}, e);
},
onItemInserted: function(e) {
insertedArgs = $.extend(true, {}, e);
},
controller: {
insertItem: function() {
inserted = true;
}
}
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(insertingArgs.item.field, "test", "field is provided in inserting args");
equal(grid.option("data").length, 2, "data is inserted");
ok(inserted, "controller insertItem was called");
deepEqual(grid.option("data")[0], { field: "test" }, "correct data is inserted at the beginning");
equal(insertedArgs.item.field, "test", "field is provided in inserted args");
});
test("insertItem accepts item to insert", function() {
var $element = $("#jsGrid"),
itemToInsert = { field: "test" },
insertedItem,
gridOptions = {
data: [],
fields: [
{
name: "field"
}
],
controller: {
insertItem: function(item) {
insertedItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.insertItem(itemToInsert);
deepEqual(grid.option("data")[0], itemToInsert, "data is inserted");
deepEqual(insertedItem, itemToInsert, "controller insertItem was called with correct item");
});
module("editing");
test("editing rendering", function() {
var $element = $("#jsGrid"),
$editRow,
data = [{
test: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "test",
align: "right",
editcss: "edit-class",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value).addClass("edit-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
equal(grid._content.find("." + grid.editRowClass).length, 0, "no edit row after initial rendering");
grid.editItem(data[0]);
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
equal($editRow.find(".edit-class").length, 1, "editcss class is attached");
equal($editRow.find(".edit-input").length, 1, "edit control rendered");
equal($editRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok($editRow.find(".edit-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].editControl.is("input[type=text]"), "edit control saved in field");
equal(grid.fields[0].editControl.val(), "value", "edit control value");
});
test("editItem accepts row to edit", function() {
var $element = $("#jsGrid"),
$editRow,
data = [
{ test: "value" }
],
gridOptions = {
editing: true,
fields: [
{ name: "test" }
]
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
var $row = $element.find("." + grid.oddRowClass).eq(0);
grid.editItem($row);
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
grid.cancelEdit();
grid.editItem($row.get(0));
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
});
test("edit item", function() {
var $element = $("#jsGrid"),
editingArgs,
editingRow,
updated = false,
updatingArgs,
updatingRow,
updatedRow,
updatedArgs,
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateItem: function(updatingItem) {
updated = true;
}
},
onItemEditing: function(e) {
editingArgs = $.extend(true, {}, e);
editingRow = grid.rowByItem(data[0])[0];
},
onItemUpdating: function(e) {
updatingArgs = $.extend(true, {}, e);
updatingRow = grid.rowByItem(data[0])[0];
},
onItemUpdated: function(e) {
updatedArgs = $.extend(true, {}, e);
updatedRow = grid.rowByItem(data[0])[0];
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
deepEqual(editingArgs.item, { field: "value" }, "item before editing is provided in editing event args");
equal(editingArgs.itemIndex, 0, "itemIndex is provided in editing event args");
equal(editingArgs.row[0], editingRow, "row element is provided in editing event args");
grid.fields[0].editControl.val("new value");
grid.updateItem();
deepEqual(updatingArgs.previousItem, { field: "value" }, "item before editing is provided in updating event args");
deepEqual(updatingArgs.item, { field: "new value" }, "updating item is provided in updating event args");
equal(updatingArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(updatingArgs.row[0], updatingRow, "row element is provided in updating event args");
ok(updated, "controller updateItem called");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
equal(grid._content.find("." + grid.editRowClass).length, 0, "edit row removed");
equal(grid._content.find("." + grid.oddRowClass).length, 1, "data row rendered");
deepEqual(updatedArgs.previousItem, { field: "value" }, "item before editing is provided in updated event args");
deepEqual(updatedArgs.item, { field: "new value" }, "updated item is provided in updated event args");
equal(updatedArgs.itemIndex, 0, "itemIndex is provided in updated event args");
equal(updatedArgs.row[0], updatedRow, "row element is provided in updated event args");
});
test("failed update should not change original item", function() {
var $element = $("#jsGrid"),
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateItem: function(updatingItem) {
return $.Deferred().reject();
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
grid.fields[0].editControl.val("new value");
grid.updateItem();
deepEqual(grid.option("data")[0], { field: "value" }, "value is not updated");
});
test("cancel edit", function() {
var $element = $("#jsGrid"),
updated = false,
cancellingArgs,
cancellingRow,
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateData: function(updatingItem) {
updated = true;
}
},
onItemEditCancelling: function(e) {
cancellingArgs = $.extend(true, {}, e);
cancellingRow = grid.rowByItem(data[0])[0];
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
grid.fields[0].editControl.val("new value");
grid.cancelEdit();
deepEqual(cancellingArgs.item, { field: "value" }, "item before cancel is provided in cancelling event args");
equal(cancellingArgs.itemIndex, 0, "itemIndex is provided in cancelling event args");
equal(cancellingArgs.row[0], cancellingRow, "row element is provided in cancelling event args");
ok(!updated, "controller updateItem was not called");
deepEqual(grid.option("data")[0], { field: "value" }, "data were not updated");
equal(grid._content.find("." + grid.editRowClass).length, 0, "edit row removed");
equal(grid._content.find("." + grid.oddRowClass).length, 1, "data row restored");
});
test("updateItem accepts item to update and new item", function() {
var $element = $("#jsGrid"),
updatingItem,
data = [{
field: "value"
}],
gridOptions = {
fields: [
{ name: "field" }
],
controller: {
updateItem: function(item) {
return updatingItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.updateItem(data[0], { field: "new value" });
deepEqual(updatingItem, { field: "new value" }, "controller updateItem called correctly");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
});
test("updateItem accepts single argument - item to update", function() {
var $element = $("#jsGrid"),
updatingItem,
data = [{
field: "value"
}],
gridOptions = {
fields: [
{ name: "field" }
],
controller: {
updateItem: function(item) {
return updatingItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
data[0].field = "new value";
grid.updateItem(data[0]);
deepEqual(updatingItem, { field: "new value" }, "controller updateItem called correctly");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
});
test("editRowRenderer", function() {
var $element = $("#jsGrid"),
data = [
{ value: "test" }
],
gridOptions = {
data: data,
editing: true,
editRowRenderer: function(item, itemIndex) {
return $("<tr>").addClass("custom-edit-row").append($("<td>").text(itemIndex + ":" + item.value));
},
fields: [
{ name: "value" }
]
},
grid = new Grid($element, gridOptions);
grid.editItem(data[0]);
var $editRow = grid._content.find(".custom-edit-row");
equal($editRow.length, 1, "edit row rendered");
equal($editRow.text(), "0:test", "custom edit row renderer rendered");
});
module("deleting");
test("delete item", function() {
var $element = $("#jsGrid"),
deleted = false,
deletingArgs,
deletedArgs,
data = [{
field: "value"
}],
gridOptions = {
confirmDeleting: false,
fields: [
{ name: "field" }
],
controller: {
deleteItem: function(deletingItem) {
deleted = true;
}
},
onItemDeleting: function(e) {
deletingArgs = $.extend(true, {}, e);
},
onItemDeleted: function(e) {
deletedArgs = $.extend(true, {}, e);
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.deleteItem(data[0]);
deepEqual(deletingArgs.item, { field: "value" }, "field and value is provided in deleting event args");
equal(deletingArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(deletingArgs.row.length, 1, "row element is provided in updating event args");
ok(deleted, "controller deleteItem called");
equal(grid.option("data").length, 0, "data row deleted");
deepEqual(deletedArgs.item, { field: "value" }, "item is provided in updating event args");
equal(deletedArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(deletedArgs.row.length, 1, "row element is provided in updating event args");
});
test("deleteItem accepts row", function() {
var $element = $("#jsGrid"),
deletedItem,
itemToDelete = {
field: "value"
},
data = [itemToDelete],
gridOptions = {
confirmDeleting: false,
fields: [
{ name: "field" }
],
controller: {
deleteItem: function(deletingItem) {
deletedItem = deletingItem;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
var $row = $element.find("." + grid.oddRowClass).eq(0);
grid.deleteItem($row);
deepEqual(deletedItem, itemToDelete, "controller deleteItem called correctly");
equal(grid.option("data").length, 0, "data row deleted");
});
module("paging");
test("pager is rendered if necessary", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}, {}],
paging: false,
pageSize: 2
});
ok(grid._pagerContainer.is(":hidden"), "pager is hidden when paging=false");
equal(grid._pagerContainer.html(), "", "pager is not rendered when paging=false");
grid.option("paging", true);
ok(grid._pagerContainer.is(":visible"), "pager is visible when paging=true");
ok(grid._pagerContainer.html(), "pager is rendered when paging=true");
grid.option("data", [{}, {}]);
ok(grid._pagerContainer.is(":hidden"), "pager is hidden for single page");
ok(grid._pagerContainer.html(), "pager is rendered for single page when paging=true");
});
test("external pagerContainer", function() {
var $pagerContainer = $("<div>").appendTo("#qunit-fixture").hide(),
$element = $("#jsGrid");
new Grid($element, {
data: [{}, {}, {}],
pagerContainer: $pagerContainer,
paging: true,
pageSize: 2
});
ok($pagerContainer.is(":visible"), "external pager shown");
ok($pagerContainer.html(), "external pager rendered");
});
test("pager functionality", function() {
var $element = $("#jsGrid"),
pager,
pageChangedArgs,
grid = new Grid($element, {
data: [{}, {}, {}, {}, {}, {}, {}, {}, {}],
onPageChanged: function(args) {
pageChangedArgs = args;
},
paging: true,
pageSize: 2,
pageButtonCount: 3
});
equal(grid._pagesCount(), 5, "correct page count");
equal(grid.option("pageIndex"), 1, "pageIndex is initialized");
equal(grid._firstDisplayingPage, 1, "_firstDisplayingPage is initialized");
pager = grid._pagerContainer;
equal(pager.find("." + grid.currentPageClass).length, 1, "there is one current page");
ok(pager.find("." + grid.pageClass).eq(0).hasClass(grid.currentPageClass), "first page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
equal(pager.find("." + grid.pagerNavButtonClass).length, 5, "five nav buttons displayed: Fisrt Prev Next Last ...");
equal(pager.find("." + grid.pagerNavButtonInactiveClass).length, 2, "two nav buttons inactive: Fisrt Prev");
grid.openPage(2);
equal(pager.find("." + grid.currentPageClass).length, 1, "there is one current page");
ok(pager.find("." + grid.pageClass).eq(1).hasClass(grid.currentPageClass), "second page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
equal(pager.find("." + grid.pagerNavButtonClass).length, 5, "five nav buttons displayed: First Prev Next Last and ...");
equal(pageChangedArgs.pageIndex, 2, "onPageChanged callback provides pageIndex in arguments");
grid.showNextPages();
equal(grid._firstDisplayingPage, 3, "navigate by pages forward");
grid.showPrevPages();
equal(grid._firstDisplayingPage, 1, "navigate by pages backward");
grid.openPage(5);
equal(grid._firstDisplayingPage, 3, "opening next non-visible page moves first displaying page forward");
grid.openPage(2);
equal(grid._firstDisplayingPage, 2, "opening prev non-visible page moves first displaying page backward");
});
test("pager format", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}, {}, {}, {}, {}],
paging: true,
pageSize: 2,
pageIndex: 2,
pageButtonCount: 1,
pagerFormat: "a {pageIndex} {first} {prev} {pages} {next} {last} {pageCount} {itemCount} z",
pagePrevText: "<",
pageNextText: ">",
pageFirstText: "<<",
pageLastText: ">>",
pageNavigatorNextText: "np",
pageNavigatorPrevText: "pp"
});
grid._firstDisplayingPage = 2;
grid._refreshPager();
equal($.trim(grid._pagerContainer.text()), "a 2 << < pp2np > >> 3 6 z", "pager text follows the format specified");
});
test("pagerRenderer", function() {
var $element = $("#jsGrid");
var pagerRendererConfig;
var pageSize = 2;
var items = [{}, {}, {}, {}, {}, {}, {}];
var pageCount = Math.ceil(items.length / pageSize);
var grid = new Grid($element, {
data: items,
paging: true,
pageSize: pageSize,
pagerRenderer: function(pagerConfig) {
pagerRendererConfig = pagerConfig;
}
});
deepEqual(pagerRendererConfig, { pageIndex: 1, pageCount: pageCount });
grid.openPage(2);
deepEqual(pagerRendererConfig, { pageIndex: 2, pageCount: pageCount });
});
test("loading by page", function() {
var $element = $("#jsGrid"),
data = [],
itemCount = 20;
for(var i = 1; i <= itemCount; i += 1) {
data.push({
value: i
});
}
var gridOptions = {
pageLoading: true,
paging: true,
pageSize: 7,
fields: [
{ name: "value" }
],
controller: {
loadData: function(filter) {
var startIndex = (filter.pageIndex - 1) * filter.pageSize,
result = data.slice(startIndex, startIndex + filter.pageSize);
return {
data: result,
itemsCount: data.length
};
}
}
};
var grid = new Grid($element, gridOptions);
grid.loadData();
var pager = grid._pagerContainer;
var gridData = grid.option("data");
equal(gridData.length, 7, "loaded one page of data");
equal(gridData[0].value, 1, "loaded right data start value");
equal(gridData[gridData.length - 1].value, 7, "loaded correct data end value");
ok(pager.find("." + grid.pageClass).eq(0).hasClass(grid.currentPageClass), "first page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
grid.openPage(3);
gridData = grid.option("data");
equal(gridData.length, 6, "loaded last page of data");
equal(gridData[0].value, 15, "loaded right data start value");
equal(gridData[gridData.length - 1].value, 20, "loaded right data end value");
ok(pager.find("." + grid.pageClass).eq(2).hasClass(grid.currentPageClass), "third page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
});
test("'openPage' method ignores indexes out of range", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}],
paging: true,
pageSize: 1
});
grid.openPage(0);
equal(grid.option("pageIndex"), 1, "too small index is ignored");
grid.openPage(3);
equal(grid.option("pageIndex"), 1, "too big index is ignored");
});
module("sorting");
test("sorting", function() {
var $element = $("#jsGrid"),
gridOptions = {
sorting: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
fields: [
{ name: "value", sorter: "number" }
]
},
grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortOrder, "asc", "asc sorting order for first click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(gridData[0].value, 1);
equal(gridData[1].value, 2);
equal(gridData[2].value, 3);
ok($th.hasClass(grid.sortableClass));
ok($th.hasClass(grid.sortAscClass));
$th.trigger("click");
equal(grid._sortOrder, "desc", "desc sorting order for second click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(gridData[0].value, 3);
equal(gridData[1].value, 2);
equal(gridData[2].value, 1);
ok(!$th.hasClass(grid.sortAscClass));
ok($th.hasClass(grid.sortDescClass));
});
test("sorting with pageLoading", function() {
var $element = $("#jsGrid"),
loadFilter,
gridOptions = {
sorting: true,
pageLoading: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
controller: {
loadData: function(filter) {
loadFilter = filter;
return {
itemsCount: 0,
data: []
};
}
},
fields: [
{ name: "value", sorter: "number" }
]
},
grid = new Grid($element, gridOptions);
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortOrder, "asc", "asc sorting order for first click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(loadFilter.sortOrder, "asc", "sort direction is provided in loadFilter");
equal(loadFilter.sortField, "value", "sort field is provided in loadFilter");
$th.trigger("click");
equal(grid._sortOrder, "desc", "desc sorting order for second click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(loadFilter.sortOrder, "desc", "sort direction is provided in loadFilter");
equal(loadFilter.sortField, "value", "sort field is provided in loadFilter");
});
test("no sorting for column with sorting = false", function() {
var $element = $("#jsGrid");
var gridOptions = {
sorting: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
fields: [
{ name: "value", sorting: false }
]
};
var grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortField, null, "sort field is not set for the field with sorting=false");
equal(gridData[0].value, 3);
equal(gridData[1].value, 2);
equal(gridData[2].value, 1);
equal($th.hasClass(grid.sortableClass), false, "no sorting css for field with sorting=false");
equal($th.hasClass(grid.sortAscClass), false, "no sorting css for field with sorting=false");
});
test("sort accepts sorting config", function() {
strictEqual(deletedItem, null, "item was not deleted");
});
});
grid = new Grid($element, gridOptions);
deepEqual(grid.getSorting(), { field: undefined, order: undefined }, "undefined field and order before sorting");
grid.sort("value");
deepEqual(grid.getSorting(), { field: "value", order: "asc" }, "current sorting returned");
});
test("sorting css attached correctly when a field is hidden", function() {
var $element = $("#jsGrid");
var gridOptions = {
sorting: true,
data: [],
fields: [
{ name: "field1", visible: false },
{ name: "field2" }
]
};
var grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal($th.hasClass(grid.sortAscClass), true, "sorting css is attached to first field");
});
module("canceling events");
test("cancel item edit", function() {
var $element = $("#jsGrid");
var data = [{}];
var gridOptions = {
editing: true,
onItemEditing: function(e) {
e.cancel = true;
},
controller: {
loadData: function() {
return data;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.loadData();
grid.editItem(data[0]);
strictEqual(grid._editingRow, null, "no editing row");
});
test("cancel controller.loadData", function() {
var $element = $("#jsGrid");
var gridOptions = {
onDataLoading: function(e) {
e.cancel = true;
},
controller: {
loadData: function() {
return [{}];
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.loadData();
equal(grid.option("data").length, 0, "no data loaded");
});
test("cancel controller.insertItem", function() {
var $element = $("#jsGrid");
var insertedItem = null;
var gridOptions = {
onItemInserting: function(e) {
e.cancel = true;
},
controller: {
insertItem: function(item) {
insertedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem({ test: "value" });
strictEqual(insertedItem, null, "item was not inserted");
});
test("cancel controller.updateItem", function() {
var $element = $("#jsGrid");
var updatedItem = null;
var existingItem = { test: "value" };
var gridOptions = {
data: [
existingItem
],
onItemUpdating: function(e) {
e.cancel = true;
},
controller: {
updateItem: function(item) {
updatedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.updateItem(existingItem, { test: "new_value" });
strictEqual(updatedItem, null, "item was not updated");
});
test("cancel controller.deleteItem", function() {
var $element = $("#jsGrid");
var deletingItem = { test: "value" };
var deletedItem = null;
var gridOptions = {
data: [
deletingItem
],
confirmDeleting: false,
onItemDeleting: function(e) {
e.cancel = true;
},
controller: {
deleteItem: function(item) {
deletedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.deleteItem(deletingItem);
strictEqual(deletedItem, null, "item was not deleted");
});
module("complex properties binding");
test("rendering", function() {
var $element = $("#jsGrid");
var gridOptions = {
loadMessage: "",
data: [
{ complexProp: { prop: "test" } }
],
fields: [
{ name: "complexProp.prop", title: "" }
]
};
new Grid($element, gridOptions);
equal($element.text(), "test", "complex property value rendered");
});
test("editing", function() {
var $element = $("#jsGrid");
var gridOptions = {
editing: true,
data: [
{ complexProp: { prop: "test" } }
],
fields: [
{ type: "text", name: "complexProp.prop" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
equal(grid.fields[0].editControl.val(), "test", "complex property value set in editor");
});
test("should not fail if property is absent", function() {
var $element = $("#jsGrid");
var gridOptions = {
loadMessage: "",
data: [
{ complexProp: { } }
],
fields: [
{ name: "complexProp.subprop.prop", title: "" }
]
};
new Grid($element, gridOptions);
equal($element.text(), "", "rendered empty value");
});
test("inserting", function() {
var $element = $("#jsGrid");
var insertingItem;
var gridOptions = {
inserting: true,
fields: [
{ type: "text", name: "complexProp.prop" }
],
onItemInserting: function(args) {
insertingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
deepEqual(insertingItem, { complexProp: { prop: "test" } }, "inserting item has complex properties");
});
test("filtering", function() {
var $element = $("#jsGrid");
var loadFilter;
var gridOptions = {
filtering: true,
fields: [
{ type: "text", name: "complexProp.prop" }
],
controller: {
loadData: function(filter) {
loadFilter = filter;
}
}
};
var grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test");
grid.search();
deepEqual(loadFilter, { complexProp: { prop: "test" } }, "filter has complex properties");
});
test("updating", function() {
var $element = $("#jsGrid");
var updatingItem;
var gridOptions = {
editing: true,
data: [
{ complexProp: { } }
],
fields: [
{ type: "text", name: "complexProp.prop" }
],
onItemUpdating: function(args) {
updatingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test");
grid.updateItem();
deepEqual(updatingItem, { complexProp: { prop: "test" } }, "updating item has complex properties");
});
test("update nested prop", function() {
var $element = $("#jsGrid");
var updatingItem;
var previousItem;
var gridOptions = {
editing: true,
data: [
{ prop: { subprop1: "test1", subprop2: "test2" } }
],
fields: [
{ type: "text", name: "prop.subprop1" },
{ type: "text", name: "prop.subprop2" }
],
onItemUpdating: function(args) {
updatingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("new_test1");
grid.updateItem();
var expectedUpdatingItem = {
prop: {
subprop1: "new_test1",
subprop2: "test2"
}
};
deepEqual(updatingItem, expectedUpdatingItem, "updating item has nested properties");
});
test("updating deeply nested prop", function() {
var $element = $("#jsGrid");
var updatingItem;
var previousItem;
var gridOptions = {
editing: true,
data: [
{ complexProp: { subprop1: { another_prop: "test" } } }
],
fields: [
{ type: "text", name: "complexProp.subprop1.prop1" },
{ type: "text", name: "complexProp.subprop1.subprop2.prop12" }
],
onItemUpdating: function(args) {
updatingItem = $.extend(true, {}, args.item);
previousItem = $.extend(true, {}, args.previousItem);
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test1");
grid.fields[1].editControl.val("test2");
grid.updateItem();
var expectedUpdatingItem = {
complexProp: {
subprop1: {
another_prop: "test",
prop1: "test1",
subprop2: { prop12: "test2" }
}
}
};
var expectedPreviousItem = {
complexProp: {
subprop1: {
another_prop: "test"
}
}
};
deepEqual(updatingItem, expectedUpdatingItem, "updating item has deeply nested properties");
deepEqual(previousItem, expectedPreviousItem, "previous item preserved correctly");
});
module("validation");
test("insertItem should call validation.validate", function() {
var $element = $("#jsGrid");
var fieldValidationRules = { test: "value" };
var validatingArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function(args) {
validatingArgs = args;
return [];
}
},
fields: [
{ type: "text", name: "Name", validate: fieldValidationRules }
]
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
deepEqual(validatingArgs, { value: "test", item: { Name: "test" }, itemIndex: -1,
row: grid._insertRow, rules: fieldValidationRules }, "validating args is provided");
});
test("insertItem rejected when data is not valid", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem().done(function() {
ok(false, "insertItem should not be completed");
}).fail(function() {
ok(true, "insertItem should fail");
});
});
test("invalidClass is attached on invalid cell on inserting", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Id", visible: false },
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
var $insertCell = grid._insertRow.children().eq(0);
grid.insertItem();
ok($insertCell.hasClass(grid.invalidClass), "invalid class is attached");
equal($insertCell.attr("title"), "Error", "cell tooltip contains error message");
});
test("onItemInvalid callback", function() {
var $element = $("#jsGrid");
var errors = ["Error"];
var onItemInvalidCalled = 0;
var onItemInvalidArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
onItemInvalid: function(args) {
onItemInvalidCalled++;
onItemInvalidArgs = args;
},
validation: {
validate: function(args) {
return !args.value ? errors : [];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem();
equal(onItemInvalidCalled, 1, "onItemInvalid is called, when item data is invalid");
deepEqual(onItemInvalidArgs, { grid: grid, errors: [{ field: grid.fields[0], message: "Error" }],
item: { Name: "" }, itemIndex: -1, row: grid._insertRow }, "arguments provided");
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(onItemInvalidCalled, 1, "onItemInvalid was not called, when data is valid");
});
test("invalidNotify", function() {
var $element = $("#jsGrid");
var errors = ["Error"];
var invalidNotifyCalled = 0;
var invalidNotifyArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: function(args) {
invalidNotifyCalled++;
invalidNotifyArgs = args;
},
validation: {
validate: function(args) {
return !args.value ? errors : [];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem();
equal(invalidNotifyCalled, 1, "invalidNotify is called, when item data is invalid");
deepEqual(invalidNotifyArgs, { grid: grid, errors: [{ field: grid.fields[0], message: "Error" }],
row: grid._insertRow, item: { Name: "" }, itemIndex: -1 }, "arguments provided");
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(invalidNotifyCalled, 1, "invalidNotify was not called, when data is valid");
});
test("invalidMessage", function() {
var $element = $("#jsGrid");
var invalidMessage;
var originalAlert = window.alert;
window.alert = function(message) {
invalidMessage = message;
};
try {
Grid.prototype.invalidMessage = "InvalidTest";
Grid.prototype.invalidNotify({ errors: [{ message: "Message1" }, { message: "Message2" }] });
var expectedInvalidMessage = ["InvalidTest", "Message1", "Message2"].join("\n");
equal(invalidMessage, expectedInvalidMessage, "message contains invalidMessage and field error messages");
} finally {
window.alert = originalAlert;
}
});
test("updateItem should call validation.validate", function() {
var $element = $("#jsGrid");
var validatingArgs;
var gridOptions = {
data: [{ Name: "" }],
editing: true,
invalidNotify: $.noop,
validation: {
validate: function(args) {
validatingArgs = args;
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: "required" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test");
grid.updateItem();
deepEqual(validatingArgs, { value: "test", item: { Name: "test" }, itemIndex: 0,
row: grid._getEditRow(), rules: "required" }, "validating args is provided");
});
test("invalidClass is attached on invalid cell on updating", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [{}],
editing: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
var $editCell = grid._getEditRow().children().eq(0);
grid.updateItem();
ok($editCell.hasClass(grid.invalidClass), "invalid class is attached");
equal($editCell.attr("title"), "Error", "cell tooltip contains error message");
});
test("validation should ignore not editable fields", function() {
var invalidNotifyCalled = 0;
var $element = $("#jsGrid");
var validatingArgs;
var gridOptions = {
data: [{ Name: "" }],
editing: true,
invalidNotify: function() {
invalidNotifyCalled++;
},
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", editing: false, validate: "required" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.updateItem();
equal(invalidNotifyCalled, 0, "data is valid");
});
module("api");
test("reset method should go the first page when pageLoading is truned on", function() {
var items = [{ Name: "1" }, { Name: "2" }];
var $element = $("#jsGrid");
var gridOptions = {
paging: true,
pageSize: 1,
pageLoading: true,
autoload: true,
controller: {
loadData: function(args) {
return {
data: [items[args.pageIndex - 1]],
itemsCount: items.length
};
}
},
fields: [
{ type: "text", name: "Name" }
]
};
var grid = new Grid($element, gridOptions);
grid.openPage(2);
grid.reset();
equal(grid._bodyGrid.text(), "1", "grid content reset");
});
module("i18n");
test("set locale by name", function() {
jsGrid.locales.my_lang = {
grid: {
test: "test_text"
}
};
jsGrid.locale("my_lang");
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "test"), "test_text", "option localized");
});
test("set locale by config", function() {
jsGrid.locale( {
grid: {
test: "test_text"
}
});
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "test"), "test_text", "option localized");
});
test("locale throws exception for unknown locale", function() {
throws(function() {
jsGrid.locale("unknown_lang");
}, /unknown_lang/, "locale threw an exception");
});
module("controller promise");
asyncTest("should support jQuery promise success callback", 1, function() {
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
var d = $.Deferred();
setTimeout(function() {
d.resolve(data);
start();
});
return d.promise();
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
asyncTest("should support jQuery promise fail callback", 1, function() {
var failArgs = {};
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
var d = $.Deferred();
setTimeout(function() {
d.reject(failArgs);
start();
});
return d.promise();
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.fail(function(result) {
equal(result, failArgs, "fail args provided to fail callback");
});
});
asyncTest("should support JS promise success callback", 1, function() {
if(typeof Promise === "undefined") {
ok(true, "Promise not supported");
start();
return;
}
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return new Promise(function(resolve, reject) {
setTimeout(function() {
resolve(data);
start();
});
});
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
asyncTest("should support JS promise fail callback", 1, function() {
if(typeof Promise === "undefined") {
ok(true, "Promise not supported");
start();
return;
}
var failArgs = {};
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return new Promise(function(resolve, reject) {
setTimeout(function() {
reject(failArgs);
start();
});
});
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.fail(function(result) {
equal(result, failArgs, "fail args provided to fail callback");
});
});
test("should support non-promise result", 1, function() {
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return data;
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
module("renderTemplate");
test("should pass undefined and null arguments to the renderer", function() {
var rendererArgs;
var rendererContext;
var context = {};
var renderer = function() {
rendererArgs = arguments;
rendererContext = this;
};
Grid.prototype.renderTemplate(renderer, context, { arg1: undefined, arg2: null, arg3: "test" });
equal(rendererArgs.length, 3);
strictEqual(rendererArgs[0], undefined, "undefined passed");
strictEqual(rendererArgs[1], null, "null passed");
strictEqual(rendererArgs[2], "test", "null passed");
strictEqual(rendererContext, context, "context is preserved");
});
module("Data Export", {
setup: function() {
this.exportConfig = {};
this.exportConfig.type = "csv";
this.exportConfig.subset = "all";
this.exportConfig.delimiter = "|";
this.exportConfig.includeHeaders = true;
this.exportConfig.encapsulate = true;
this.element = $("#jsGrid");
this.gridOptions = {
width: "100%",
height: "400px",
inserting: true,
editing: true,
sorting: true,
paging: true,
pageSize: 2,
data: [
{ "Name": "Otto Clay", "Country": 1, "Married": false },
{ "Name": "Connor Johnston", "Country": 2, "Married": true },
{ "Name": "Lacey Hess", "Country": 2, "Married": false },
{ "Name": "Timothy Henson", "Country": 1, "Married": true }
],
fields: [
{ name: "Name", type: "text", width: 150, validate: "required" },
{ name: "Country", type: "select", items: [{ Name: "United States", Id: 1 },{ Name: "Canada", Id: 2 }], valueField: "Id", textField: "Name" },
{ name: "Married", type: "checkbox", title: "Is Married", sorting: false },
{ type: "control" }
]
}
}
});
/* Base Choice Criteria
type: csv
subset: all
delimiter: |
includeHeaders: true
encapsulate: true
*/
test("Should export data: Base Choice",function(){
var grid = new Grid($(this.element), this.gridOptions);
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV configured to Base Choice Criteria -- Check Source");
});
test("Should export data: defaults = BCC",function(){
var grid = new Grid($(this.element), this.gridOptions);
var data = grid.exportData();
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV with all defaults -- Should be equal to Base Choice");
});
test("Should export data: subset=visible", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.subset = "visible";
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
//expected += '"Lacey Hess"|"Canada"|"false"\r\n';
//expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV of visible records");
});
test("Should export data: delimiter=;", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.delimiter = ";";
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name";"Country";"Is Married"\r\n';
expected += '"Otto Clay";"United States";"false"\r\n';
expected += '"Connor Johnston";"Canada";"true"\r\n';
expected += '"Lacey Hess";"Canada";"false"\r\n';
expected += '"Timothy Henson";"United States";"true"\r\n';
equal(data, expected, "Output CSV with non-default delimiter");
});
test("Should export data: headers=false", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.includeHeaders = false;
var data = grid.exportData(this.exportConfig);
var expected = "";
//expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV without Headers");
});
test("Should export data: encapsulate=false", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.encapsulate = false;
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += 'Name|Country|Is Married\r\n';
expected += 'Otto Clay|United States|false\r\n';
expected += 'Connor Johnston|Canada|true\r\n';
expected += 'Lacey Hess|Canada|false\r\n';
expected += 'Timothy Henson|United States|true\r\n';
equal(data, expected, "Output CSV without encapsulation");
});
test("Should export filtered data", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig['filter'] = function(item){
if (item["Name"].indexOf("O") === 0)
return true
};
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
//expected += '"Connor Johnston"|"Canada"|"true"\r\n';
//expected += '"Lacey Hess"|"Canada"|"false"\r\n';
//expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV filtered to show names starting with O");
});
test("Should export data: transformed value", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig['transforms'] = {};
this.exportConfig.transforms['Married'] = function(value){
if (value === true) return "Yes"
if (value === false) return "No"
};
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"No"\r\n';
expected += '"Connor Johnston"|"Canada"|"Yes"\r\n';
expected += '"Lacey Hess"|"Canada"|"No"\r\n';
expected += '"Timothy Henson"|"United States"|"Yes"\r\n';
equal(data, expected, "Output CSV column value transformed properly");
});
});
<MSG> Core: Add tests for dot notation for properties binding
<DFF> @@ -1910,4 +1910,52 @@ $(function() {
strictEqual(deletedItem, null, "item was not deleted");
});
+
+
+ module("complex properties binding");
+
+ test("rendering", function() {
+ var $element = $("#jsGrid");
+
+ var gridOptions = {
+
+ loadMessage: "",
+
+ data: [
+ { complexProp: { prop: "test" } }
+ ],
+
+ fields: [
+ { name: "complexProp.prop", title: "" }
+ ]
+ };
+
+ new Grid($element, gridOptions);
+
+ strictEqual($element.text(), "test", "complex property value rendered");
+ });
+
+ test("editing", function() {
+ var $element = $("#jsGrid");
+
+ var gridOptions = {
+
+ editing: true,
+
+ data: [
+ { complexProp: { prop: "test" } }
+ ],
+
+ fields: [
+ { type: "text", name: "complexProp.prop" }
+ ]
+ };
+
+ var grid = new Grid($element, gridOptions);
+
+ grid.editItem(gridOptions.data[0]);
+ strictEqual(grid.fields[0].editControl.val(), "test", "complex property value set in editor");
+ });
+
+
});
| 48 | Core: Add tests for dot notation for properties binding | 0 | .js | tests | mit | tabalinas/jsgrid |
10057831 | <NME> jsgrid.tests.js
<BEF> $(function() {
var Grid = jsGrid.Grid,
JSGRID = "JSGrid",
JSGRID_DATA_KEY = JSGRID;
Grid.prototype.updateOnResize = false;
module("basic");
test("default creation", function() {
var gridOptions = {
simpleOption: "test",
complexOption: {
a: "subtest",
b: 1,
c: {}
}
},
grid = new Grid("#jsGrid", gridOptions);
equal(grid._container[0], $("#jsGrid")[0], "container saved");
equal(grid.simpleOption, "test", "primitive option extended");
equal(grid.complexOption, gridOptions.complexOption, "non-primitive option extended");
});
test("jquery adapter creation", function() {
var gridOptions = {
option: "test"
},
$element = $("#jsGrid"),
result = $element.jsGrid(gridOptions),
grid = $element.data(JSGRID_DATA_KEY);
equal(result, $element, "jquery fn returned source jQueryElement");
ok(grid instanceof Grid, "jsGrid saved to jquery data");
equal(grid.option, "test", "options provided");
});
test("destroy", function() {
var $element = $("#jsGrid"),
grid;
$element.jsGrid({});
grid = $element.data(JSGRID_DATA_KEY);
grid.destroy();
strictEqual($element.html(), "", "content is removed");
strictEqual($element.data(JSGRID_DATA_KEY), undefined, "jquery data is removed");
});
test("jquery adapter second call changes option value", function() {
var $element = $("#jsGrid"),
gridOptions = {
option: "test"
},
grid;
$element.jsGrid(gridOptions);
grid = $element.data(JSGRID_DATA_KEY);
gridOptions.option = "new test";
$element.jsGrid(gridOptions);
equal(grid, $element.data(JSGRID_DATA_KEY), "instance was not changed");
equal(grid.option, "new test", "option changed");
});
test("jquery adapter invokes jsGrid method", function() {
var methodResult = "",
$element = $("#jsGrid"),
gridOptions = {
method: function(str) {
methodResult = "test_" + str;
}
};
$element.jsGrid(gridOptions);
$element.jsGrid("method", "invoke");
equal(methodResult, "test_invoke", "method invoked");
});
test("onInit callback", function() {
var $element = $("#jsGrid"),
onInitArguments,
gridOptions = {
onInit: function(args) {
onInitArguments = args;
}
};
var grid = new Grid($element, gridOptions);
equal(onInitArguments.grid, grid, "grid instance is provided in onInit callback arguments");
});
test("controller methods are $.noop when not specified", function() {
var $element = $("#jsGrid"),
gridOptions = {
controller: {}
},
testOption;
$element.jsGrid(gridOptions);
deepEqual($element.data(JSGRID_DATA_KEY)._controller, {
loadData: $.noop,
insertItem: $.noop,
updateItem: $.noop,
deleteItem: $.noop
}, "controller has stub methods");
});
test("option method", function() {
var $element = $("#jsGrid"),
gridOptions = {
test: "value"
},
testOption;
$element.jsGrid(gridOptions);
testOption = $element.jsGrid("option", "test");
equal(testOption, "value", "read option value");
$element.jsGrid("option", "test", "new_value");
testOption = $element.jsGrid("option", "test");
equal(testOption, "new_value", "set option value");
});
test("fieldOption method", function() {
var dataLoadedCount = 0;
var $element = $("#jsGrid"),
gridOptions = {
loadMessage: "",
autoload: true,
controller: {
loadData: function() {
dataLoadedCount++;
return [{ prop1: "value1", prop2: "value2", prop3: "value3" }];
}
},
fields: [
{ name: "prop1", title: "_" }
]
};
$element.jsGrid(gridOptions);
var fieldOptionValue = $element.jsGrid("fieldOption", "prop1", "name");
equal(fieldOptionValue, "prop1", "read field option");
$element.jsGrid("fieldOption", "prop1", "name", "prop2");
equal($element.text(), "_value2", "set field option by field name");
equal(dataLoadedCount, 1, "data not reloaded on field option change");
$element.jsGrid("fieldOption", 0, "name", "prop3");
equal($element.text(), "_value3", "set field option by field index");
});
test("option changing event handlers", function() {
var $element = $("#jsGrid"),
optionChangingEventArgs,
optionChangedEventArgs,
gridOptions = {
test: "testValue",
another: "anotherValue",
onOptionChanging: function(e) {
optionChangingEventArgs = $.extend({}, e);
e.option = "another";
e.newValue = e.newValue + "_" + this.another;
},
onOptionChanged: function(e) {
optionChangedEventArgs = $.extend({}, e);
}
},
anotherOption;
$element.jsGrid(gridOptions);
$element.jsGrid("option", "test", "newTestValue");
equal(optionChangingEventArgs.option, "test", "option name is provided in args of optionChanging");
equal(optionChangingEventArgs.oldValue, "testValue", "old option value is provided in args of optionChanging");
equal(optionChangingEventArgs.newValue, "newTestValue", "new option value is provided in args of optionChanging");
anotherOption = $element.jsGrid("option", "another");
equal(anotherOption, "newTestValue_anotherValue", "option changing handler changed option and value");
equal(optionChangedEventArgs.option, "another", "option name is provided in args of optionChanged");
equal(optionChangedEventArgs.value, "newTestValue_anotherValue", "option value is provided in args of optionChanged");
});
test("common layout rendering", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {}),
$headerGrid,
$headerGridTable,
$bodyGrid,
$bodyGridTable;
ok($element.hasClass(grid.containerClass), "container class attached");
ok($element.children().eq(0).hasClass(grid.gridHeaderClass), "grid header");
ok($element.children().eq(1).hasClass(grid.gridBodyClass), "grid body");
ok($element.children().eq(2).hasClass(grid.pagerContainerClass), "pager container");
$headerGrid = $element.children().eq(0);
$headerGridTable = $headerGrid.children().first();
ok($headerGridTable.hasClass(grid.tableClass), "header table");
equal($headerGrid.find("." + grid.headerRowClass).length, 1, "header row");
equal($headerGrid.find("." + grid.filterRowClass).length, 1, "filter row");
equal($headerGrid.find("." + grid.insertRowClass).length, 1, "insert row");
ok(grid._headerRow.hasClass(grid.headerRowClass), "header row class");
ok(grid._filterRow.hasClass(grid.filterRowClass), "filter row class");
ok(grid._insertRow.hasClass(grid.insertRowClass), "insert row class");
$bodyGrid = $element.children().eq(1);
$bodyGridTable = $bodyGrid.children().first();
ok($bodyGridTable.hasClass(grid.tableClass), "body table");
equal(grid._content.parent()[0], $bodyGridTable[0], "content is tbody in body table");
equal($bodyGridTable.find("." + grid.noDataRowClass).length, 1, "no data row");
equal($bodyGridTable.text(), grid.noDataContent, "no data text");
});
test("set default options with setDefaults", function() {
jsGrid.setDefaults({
defaultOption: "test"
});
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "defaultOption"), "test", "default option set");
});
module("loading");
test("loading with controller", function() {
var $element = $("#jsGrid"),
data = [
{ test: "test1" },
{ test: "test2" }
],
gridOptions = {
controller: {
loadData: function() {
return data;
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(grid.option("data"), data, "loadData loads data");
});
test("loadData throws exception when controller method not found", function() {
var $element = $("#jsGrid");
var grid = new Grid($element);
grid._controller = {};
throws(function() {
grid.loadData();
}, /loadData/, "loadData threw an exception");
});
test("onError event should be fired on controller fail", function() {
var errorArgs,
errorFired = 0,
$element = $("#jsGrid"),
gridOptions = {
controller: {
loadData: function() {
return $.Deferred().reject({ value: 1 }, "test").promise();
}
},
onError: function(args) {
errorFired++;
errorArgs = args;
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(errorFired, 1, "onError handler fired");
deepEqual(errorArgs, { grid: grid, args: [{ value: 1 }, "test"] }, "error has correct params");
});
asyncTest("autoload should call loadData after render", 1, function() {
new Grid($("#jsGrid"), {
autoload: true,
controller: {
loadData: function() {
ok(true, "autoload calls loadData on creation");
start();
return [];
}
}
});
});
test("loading filtered data", function() {
var filteredData,
loadingArgs,
loadedArgs,
$element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
filtering: true,
fields: [
{
name: "field",
filterValue: function(value) {
return "test";
}
}
],
onDataLoading: function(e) {
loadingArgs = $.extend(true, {}, e);
},
onDataLoaded: function(e) {
loadedArgs = $.extend(true, {}, e);
},
controller: {
loadData: function(filter) {
filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
equal(loadingArgs.filter.field, "test");
equal(grid.option("data").length, 2, "filtered data loaded");
deepEqual(loadedArgs.data, filteredData);
});
asyncTest("loading indication", function() {
var timeout = 10,
stage = "initial",
$element = $("#jsGrid"),
gridOptions = {
loadIndication: true,
loadIndicationDelay: timeout,
loadMessage: "loading...",
loadIndicator: function(config) {
equal(config.message, gridOptions.loadMessage, "message provided");
ok(config.container.jquery, "grid container is provided");
return {
show: function() {
stage = "started";
},
hide: function() {
stage = "finished";
}
};
},
fields: [
{ name: "field" }
],
controller: {
loadData: function() {
var deferred = $.Deferred();
equal(stage, "initial", "initial stage");
setTimeout(function() {
equal(stage, "started", "loading started");
deferred.resolve([]);
equal(stage, "finished", "loading finished");
start();
}, timeout);
return deferred.promise();
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
});
asyncTest("loadingIndication=false should not show loading", 0, function() {
var $element = $("#jsGrid"),
timeout = 10,
gridOptions = {
loadIndication: false,
loadIndicationDelay: timeout,
loadIndicator: function() {
return {
show: function() {
ok(false, "should not call show");
},
hide: function() {
ok(false, "should not call hide");
}
};
},
fields: [
{ name: "field" }
],
controller: {
loadData: function() {
var deferred = $.Deferred();
setTimeout(function() {
deferred.resolve([]);
start();
}, timeout);
return deferred.promise();
}
}
},
grid = new Grid($element, gridOptions);
grid.loadData();
});
test("search", function() {
var $element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
pageIndex: 2,
_sortField: "field",
_sortOrder: "desc",
filtering: true,
fields: [
{
name: "field",
filterValue: function(value) {
return "test";
}
}
],
controller: {
loadData: function(filter) {
var filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.search();
equal(grid.option("data").length, 2, "data filtered");
strictEqual(grid.option("pageIndex"), 1, "pageIndex reset");
strictEqual(grid._sortField, null, "sortField reset");
strictEqual(grid._sortOrder, "asc", "sortOrder reset");
});
test("change loadStrategy on the fly", function() {
var $element = $("#jsGrid");
var gridOptions = {
controller: {
loadData: function() {
return [];
}
}
};
var grid = new Grid($element, gridOptions);
grid.option("loadStrategy", {
firstDisplayIndex: function() {
return 0;
},
lastDisplayIndex: function() {
return 1;
},
loadParams: function() {
return [];
},
finishLoad: function() {
grid.option("data", [{}]);
}
});
grid.loadData();
equal(grid.option("data").length, 1, "new load strategy is applied");
});
module("filtering");
test("filter rendering", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
fields: [
{
name: "test",
align: "right",
filtercss: "filter-class",
filterTemplate: function() {
var result = this.filterControl = $("<input>").attr("type", "text").addClass("filter-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
equal(grid._filterRow.find(".filter-class").length, 1, "filtercss class is attached");
equal(grid._filterRow.find(".filter-input").length, 1, "filter control rendered");
equal(grid._filterRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok(grid._filterRow.find(".filter-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].filterControl.is("input[type=text]"), "filter control saved in field");
});
test("filter get/clear", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
controller: {
loadData: function() {
return [];
}
},
fields: [
{
name: "field",
filterTemplate: function() {
return this.filterControl = $("<input>").attr("type", "text");
},
filterValue: function() {
return this.filterControl.val();
}
}
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test");
deepEqual(grid.getFilter(), { field: "test" }, "get filter");
grid.clearFilter();
deepEqual(grid.getFilter(), { field: "" }, "filter cleared");
equal(grid.fields[0].filterControl.val(), "", "grid field filterControl cleared");
});
test("field without filtering", function() {
var $element = $("#jsGrid"),
jsGridFieldConfig = {
filterTemplate: function() {
var result = this.filterControl = $("<input>").attr("type", "text");
return result;
},
filterValue: function(value) {
if(!arguments.length) {
return this.filterControl.val();
}
this.filterControl.val(value);
}
},
gridOptions = {
filtering: true,
fields: [
$.extend({}, jsGridFieldConfig, {
name: "field1",
filtering: false
}),
$.extend({}, jsGridFieldConfig, {
name: "field2"
})
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test1");
grid.fields[1].filterControl.val("test2");
deepEqual(grid.getFilter(), { field2: "test2" }, "field with filtering=false is not included in filter");
});
test("search with filter", function() {
var $element = $("#jsGrid"),
data = [
{ field: "test" },
{ field: "test_another" },
{ field: "test_another" },
{ field: "test" }
],
gridOptions = {
fields: [
{
name: "field"
}
],
controller: {
loadData: function(filter) {
var filteredData = $.grep(data, function(item) {
return item.field === filter.field;
});
return filteredData;
}
}
},
grid = new Grid($element, gridOptions);
grid.search({ field: "test" });
equal(grid.option("data").length, 2, "data filtered");
});
test("filtering with static data should not do actual filtering", function() {
var $element = $("#jsGrid"),
gridOptions = {
filtering: true,
fields: [
{ type: "text", name: "field" }
],
data: [
{ name: "value1" },
{ name: "value2" }
]
},
grid = new Grid($element, gridOptions);
grid._filterRow.find("input").val("1");
grid.search();
equal(grid.option("data").length, 2, "data is not filtered");
});
module("nodatarow");
test("nodatarow after bind on empty array", function() {
var $element = $("#jsGrid"),
gridOptions = {},
grid = new Grid($element, gridOptions);
grid.option("data", []);
equal(grid._content.find("." + grid.noDataRowClass).length, 1, "no data row rendered");
equal(grid._content.find("." + grid.cellClass).length, 1, "grid cell class attached");
equal(grid._content.text(), grid.noDataContent, "no data text rendered");
});
test("nodatarow customize content", function() {
var noDataMessage = "NoData Custom Content",
$element = $("#jsGrid"),
gridOptions = {
noDataContent: function() {
return noDataMessage;
}
},
grid = new Grid($element, gridOptions);
grid.option("data", []);
equal(grid._content.find("." + grid.cellClass).length, 1, "grid cell class attached");
equal(grid._content.text(), noDataMessage, "custom noDataContent");
});
module("row rendering", {
setup: function() {
this.testData = [
{ id: 1, text: "test1" },
{ id: 2, text: "test2" },
{ id: 3, text: "test3" }
];
}
});
test("rows rendered correctly", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData
},
grid = new Grid($element, gridOptions);
equal(grid._content.children().length, 3, "rows rendered");
equal(grid._content.find("." + grid.oddRowClass).length, 2, "two odd rows for 3 items");
equal(grid._content.find("." + grid.evenRowClass).length, 1, "one even row for 3 items");
});
test("custom rowClass", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData,
rowClass: "custom-row-cls"
},
grid = new Grid($element, gridOptions);
equal(grid._content.find("." + grid.oddRowClass).length, 2);
equal(grid._content.find("." + grid.evenRowClass).length, 1);
equal(grid._content.find(".custom-row-cls").length, 3, "custom row class");
});
test("custom rowClass callback", function() {
var $element = $("#jsGrid"),
gridOptions = {
data: this.testData,
rowClass: function(item, index) {
return item.text;
}
},
grid = new Grid($element, gridOptions);
equal(grid._content.find("." + grid.oddRowClass).length, 2);
equal(grid._content.find("." + grid.evenRowClass).length, 1);
equal(grid._content.find(".test1").length, 1, "custom row class");
equal(grid._content.find(".test2").length, 1, "custom row class");
equal(grid._content.find(".test3").length, 1, "custom row class");
});
test("rowClick standard handler", function() {
var $element = $("#jsGrid"),
$secondRow,
grid = new Grid($element, { editing: true });
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("click", $.Event($secondRow));
equal(grid._editingRow.get(0), $secondRow.get(0), "clicked row is editingRow");
});
test("rowClick handler", function() {
var rowClickArgs,
$element = $("#jsGrid"),
$secondRow,
gridOptions = {
rowClick: function(args) {
rowClickArgs = args;
}
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("click", $.Event($secondRow));
ok(rowClickArgs.event instanceof jQuery.Event, "jquery event arg");
equal(rowClickArgs.item, this.testData[1], "item arg");
equal(rowClickArgs.itemIndex, 1, "itemIndex arg");
});
test("row selecting with selectedRowClass", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
selecting: true
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("mouseenter", $.Event($secondRow));
ok($secondRow.hasClass(grid.selectedRowClass), "mouseenter adds selectedRowClass");
$secondRow.trigger("mouseleave", $.Event($secondRow));
ok(!$secondRow.hasClass(grid.selectedRowClass), "mouseleave removes selectedRowClass");
});
test("no row selecting while selection is disabled", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
selecting: false
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
$secondRow = grid._content.find("." + grid.evenRowClass);
$secondRow.trigger("mouseenter", $.Event($secondRow));
ok(!$secondRow.hasClass(grid.selectedRowClass), "mouseenter doesn't add selectedRowClass");
});
test("refreshing and refreshed callbacks", function() {
var refreshingEventArgs,
refreshedEventArgs,
$element = $("#jsGrid"),
grid = new Grid($element, {});
grid.onRefreshing = function(e) {
refreshingEventArgs = e;
equal(grid._content.find("." + grid.oddRowClass).length, 0, "no items before refresh");
};
grid.onRefreshed = function(e) {
refreshedEventArgs = e;
equal(grid._content.find("." + grid.oddRowClass).length, 2, "items rendered after refresh");
};
grid.option("data", this.testData);
equal(refreshingEventArgs.grid, grid, "grid provided in args for refreshing event");
equal(refreshedEventArgs.grid, grid, "grid provided in args for refreshed event");
equal(grid._content.find("." + grid.oddRowClass).length, 2, "items rendered");
});
test("grid fields normalization", function() {
var CustomField = function(config) {
$.extend(true, this, config);
};
jsGrid.fields.custom = CustomField;
try {
var $element = $("#jsGrid"),
gridOptions = {
fields: [
new jsGrid.Field({
name: "text1",
title: "title1"
}),
{
name: "text2",
title: "title2"
},
{
name: "text3",
type: "custom"
}
]
},
grid = new Grid($element, gridOptions);
var field1 = grid.fields[0];
ok(field1 instanceof jsGrid.Field);
equal(field1.name, "text1", "name is set for field");
equal(field1.title, "title1", "title field");
var field2 = grid.fields[1];
ok(field2 instanceof jsGrid.Field);
equal(field2.name, "text2", "name is set for field");
equal(field2.title, "title2", "title field");
var field3 = grid.fields[2];
ok(field3 instanceof CustomField);
equal(field3.name, "text3", "name is set for field");
} finally {
delete jsGrid.fields.custom;
}
});
test("'0' itemTemplate should be rendered", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}],
fields: [
new jsGrid.Field({ name: "id", itemTemplate: function() { return 0; } })
]
});
equal(grid._bodyGrid.text(), "0", "item template is rendered");
});
test("grid field name used for header if title is not specified", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
fields: [
new jsGrid.Field({ name: "id" })
]
});
equal(grid._headerRow.text(), "id", "name is rendered in header");
});
test("grid fields header and item rendering", function() {
var $element = $("#jsGrid"),
$secondRow,
gridOptions = {
fields: [
new jsGrid.Field({
name: "text",
title: "title",
css: "cell-class",
headercss: "header-class",
align: "right"
})
]
},
grid = new Grid($element, gridOptions);
grid.option("data", this.testData);
equal(grid._headerRow.text(), "title", "header rendered");
equal(grid._headerRow.find("." + grid.headerCellClass).length, 1, "header cell class is attached");
equal(grid._headerRow.find(".header-class").length, 1, "headercss class is attached");
ok(grid._headerRow.find(".header-class").hasClass("jsgrid-align-right"), "align class is attached");
$secondRow = grid._content.find("." + grid.evenRowClass);
equal($secondRow.text(), "test2", "item rendered");
equal($secondRow.find(".cell-class").length, 1, "css class added to cell");
equal($secondRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok($secondRow.find(".cell-class").hasClass("jsgrid-align-right"), "align class added to cell");
});
test("grid field cellRenderer", function() {
var testItem = { text: "test" },
args;
var $grid = $("#jsGrid");
var gridOptions = {
data: [testItem],
fields: [
{
name: "text",
cellRenderer: function(value, item) {
args = {
value: value,
item: item
};
return $("<td>").addClass("custom-class").text(value);
}
}
]
};
var grid = new Grid($grid, gridOptions);
var $customCell = $grid.find(".custom-class");
equal($customCell.length, 1, "custom cell rendered");
equal($customCell.text(), "test");
deepEqual(args, { value: "test", item: testItem }, "cellRenderer args provided");
});
test("grid field 'visible' option", function() {
var $grid = $("#jsGrid");
var gridOptions = {
editing: true,
fields: [
{ name: "id", visible: false },
{ name: "test" }
]
};
var grid = new Grid($grid, gridOptions);
equal($grid.find("." + grid.noDataRowClass).children().eq(0).prop("colspan"), 1, "no data row colspan only for visible cells");
grid.option("data", this.testData);
grid.editItem(this.testData[2]);
equal($grid.find("." + grid.headerRowClass).children().length, 1, "header single cell");
equal($grid.find("." + grid.filterRowClass).children().length, 1, "filter single cell");
equal($grid.find("." + grid.insertRowClass).children().length, 1, "insert single cell");
equal($grid.find("." + grid.editRowClass).children().length, 1, "edit single cell");
equal($grid.find("." + grid.oddRowClass).eq(0).children().length, 1, "odd data row single cell");
equal($grid.find("." + grid.evenRowClass).eq(0).children().length, 1, "even data row single cell");
});
module("inserting");
test("inserting rendering", function() {
var $element = $("#jsGrid"),
gridOptions = {
inserting: true,
fields: [
{
name: "test",
align: "right",
insertcss: "insert-class",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text").addClass("insert-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
equal(grid._insertRow.find(".insert-class").length, 1, "insertcss class is attached");
equal(grid._insertRow.find(".insert-input").length, 1, "insert control rendered");
equal(grid._insertRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok(grid._insertRow.find(".insert-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].insertControl.is("input[type=text]"), "insert control saved in field");
});
test("field without inserting", function() {
var $element = $("#jsGrid"),
jsGridFieldConfig = {
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
},
gridOptions = {
inserting: true,
fields: [
$.extend({}, jsGridFieldConfig, {
name: "field1",
inserting: false
}),
$.extend({}, jsGridFieldConfig, {
name: "field2"
})
]
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test1");
grid.fields[1].insertControl.val("test2");
deepEqual(grid._getInsertItem(), { field2: "test2" }, "field with inserting=false is not included in inserting item");
});
test("insert data with default location", function() {
var $element = $("#jsGrid"),
inserted = false,
insertingArgs,
insertedArgs,
gridOptions = {
inserting: true,
data: [{field: "default"}],
fields: [
{
name: "field",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
}
],
onItemInserting: function(e) {
insertingArgs = $.extend(true, {}, e);
},
onItemInserted: function(e) {
insertedArgs = $.extend(true, {}, e);
},
controller: {
insertItem: function() {
inserted = true;
}
}
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(insertingArgs.item.field, "test", "field is provided in inserting args");
equal(grid.option("data").length, 2, "data is inserted");
ok(inserted, "controller insertItem was called");
deepEqual(grid.option("data")[1], { field: "test" }, "correct data is inserted");
equal(insertedArgs.item.field, "test", "field is provided in inserted args");
});
test("insert data with specified insert location", function() {
var $element = $("#jsGrid"),
inserted = false,
insertingArgs,
insertedArgs,
gridOptions = {
inserting: true,
insertRowLocation: "top",
data: [{field: "default"}],
fields: [
{
name: "field",
insertTemplate: function() {
var result = this.insertControl = $("<input>").attr("type", "text");
return result;
},
insertValue: function() {
return this.insertControl.val();
}
}
],
onItemInserting: function(e) {
insertingArgs = $.extend(true, {}, e);
},
onItemInserted: function(e) {
insertedArgs = $.extend(true, {}, e);
},
controller: {
insertItem: function() {
inserted = true;
}
}
},
grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(insertingArgs.item.field, "test", "field is provided in inserting args");
equal(grid.option("data").length, 2, "data is inserted");
ok(inserted, "controller insertItem was called");
deepEqual(grid.option("data")[0], { field: "test" }, "correct data is inserted at the beginning");
equal(insertedArgs.item.field, "test", "field is provided in inserted args");
});
test("insertItem accepts item to insert", function() {
var $element = $("#jsGrid"),
itemToInsert = { field: "test" },
insertedItem,
gridOptions = {
data: [],
fields: [
{
name: "field"
}
],
controller: {
insertItem: function(item) {
insertedItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.insertItem(itemToInsert);
deepEqual(grid.option("data")[0], itemToInsert, "data is inserted");
deepEqual(insertedItem, itemToInsert, "controller insertItem was called with correct item");
});
module("editing");
test("editing rendering", function() {
var $element = $("#jsGrid"),
$editRow,
data = [{
test: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "test",
align: "right",
editcss: "edit-class",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value).addClass("edit-input");
return result;
}
}
]
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
equal(grid._content.find("." + grid.editRowClass).length, 0, "no edit row after initial rendering");
grid.editItem(data[0]);
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
equal($editRow.find(".edit-class").length, 1, "editcss class is attached");
equal($editRow.find(".edit-input").length, 1, "edit control rendered");
equal($editRow.find("." + grid.cellClass).length, 1, "cell class is attached");
ok($editRow.find(".edit-class").hasClass("jsgrid-align-right"), "align class is attached");
ok(grid.fields[0].editControl.is("input[type=text]"), "edit control saved in field");
equal(grid.fields[0].editControl.val(), "value", "edit control value");
});
test("editItem accepts row to edit", function() {
var $element = $("#jsGrid"),
$editRow,
data = [
{ test: "value" }
],
gridOptions = {
editing: true,
fields: [
{ name: "test" }
]
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
var $row = $element.find("." + grid.oddRowClass).eq(0);
grid.editItem($row);
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
grid.cancelEdit();
grid.editItem($row.get(0));
$editRow = grid._content.find("." + grid.editRowClass);
equal($editRow.length, 1, "edit row rendered");
});
test("edit item", function() {
var $element = $("#jsGrid"),
editingArgs,
editingRow,
updated = false,
updatingArgs,
updatingRow,
updatedRow,
updatedArgs,
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateItem: function(updatingItem) {
updated = true;
}
},
onItemEditing: function(e) {
editingArgs = $.extend(true, {}, e);
editingRow = grid.rowByItem(data[0])[0];
},
onItemUpdating: function(e) {
updatingArgs = $.extend(true, {}, e);
updatingRow = grid.rowByItem(data[0])[0];
},
onItemUpdated: function(e) {
updatedArgs = $.extend(true, {}, e);
updatedRow = grid.rowByItem(data[0])[0];
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
deepEqual(editingArgs.item, { field: "value" }, "item before editing is provided in editing event args");
equal(editingArgs.itemIndex, 0, "itemIndex is provided in editing event args");
equal(editingArgs.row[0], editingRow, "row element is provided in editing event args");
grid.fields[0].editControl.val("new value");
grid.updateItem();
deepEqual(updatingArgs.previousItem, { field: "value" }, "item before editing is provided in updating event args");
deepEqual(updatingArgs.item, { field: "new value" }, "updating item is provided in updating event args");
equal(updatingArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(updatingArgs.row[0], updatingRow, "row element is provided in updating event args");
ok(updated, "controller updateItem called");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
equal(grid._content.find("." + grid.editRowClass).length, 0, "edit row removed");
equal(grid._content.find("." + grid.oddRowClass).length, 1, "data row rendered");
deepEqual(updatedArgs.previousItem, { field: "value" }, "item before editing is provided in updated event args");
deepEqual(updatedArgs.item, { field: "new value" }, "updated item is provided in updated event args");
equal(updatedArgs.itemIndex, 0, "itemIndex is provided in updated event args");
equal(updatedArgs.row[0], updatedRow, "row element is provided in updated event args");
});
test("failed update should not change original item", function() {
var $element = $("#jsGrid"),
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateItem: function(updatingItem) {
return $.Deferred().reject();
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
grid.fields[0].editControl.val("new value");
grid.updateItem();
deepEqual(grid.option("data")[0], { field: "value" }, "value is not updated");
});
test("cancel edit", function() {
var $element = $("#jsGrid"),
updated = false,
cancellingArgs,
cancellingRow,
data = [{
field: "value"
}],
gridOptions = {
editing: true,
fields: [
{
name: "field",
editTemplate: function(value) {
var result = this.editControl = $("<input>").attr("type", "text").val(value);
return result;
},
editValue: function() {
return this.editControl.val();
}
}
],
controller: {
updateData: function(updatingItem) {
updated = true;
}
},
onItemEditCancelling: function(e) {
cancellingArgs = $.extend(true, {}, e);
cancellingRow = grid.rowByItem(data[0])[0];
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.editItem(data[0]);
grid.fields[0].editControl.val("new value");
grid.cancelEdit();
deepEqual(cancellingArgs.item, { field: "value" }, "item before cancel is provided in cancelling event args");
equal(cancellingArgs.itemIndex, 0, "itemIndex is provided in cancelling event args");
equal(cancellingArgs.row[0], cancellingRow, "row element is provided in cancelling event args");
ok(!updated, "controller updateItem was not called");
deepEqual(grid.option("data")[0], { field: "value" }, "data were not updated");
equal(grid._content.find("." + grid.editRowClass).length, 0, "edit row removed");
equal(grid._content.find("." + grid.oddRowClass).length, 1, "data row restored");
});
test("updateItem accepts item to update and new item", function() {
var $element = $("#jsGrid"),
updatingItem,
data = [{
field: "value"
}],
gridOptions = {
fields: [
{ name: "field" }
],
controller: {
updateItem: function(item) {
return updatingItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.updateItem(data[0], { field: "new value" });
deepEqual(updatingItem, { field: "new value" }, "controller updateItem called correctly");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
});
test("updateItem accepts single argument - item to update", function() {
var $element = $("#jsGrid"),
updatingItem,
data = [{
field: "value"
}],
gridOptions = {
fields: [
{ name: "field" }
],
controller: {
updateItem: function(item) {
return updatingItem = item;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
data[0].field = "new value";
grid.updateItem(data[0]);
deepEqual(updatingItem, { field: "new value" }, "controller updateItem called correctly");
deepEqual(grid.option("data")[0], { field: "new value" }, "correct data updated");
});
test("editRowRenderer", function() {
var $element = $("#jsGrid"),
data = [
{ value: "test" }
],
gridOptions = {
data: data,
editing: true,
editRowRenderer: function(item, itemIndex) {
return $("<tr>").addClass("custom-edit-row").append($("<td>").text(itemIndex + ":" + item.value));
},
fields: [
{ name: "value" }
]
},
grid = new Grid($element, gridOptions);
grid.editItem(data[0]);
var $editRow = grid._content.find(".custom-edit-row");
equal($editRow.length, 1, "edit row rendered");
equal($editRow.text(), "0:test", "custom edit row renderer rendered");
});
module("deleting");
test("delete item", function() {
var $element = $("#jsGrid"),
deleted = false,
deletingArgs,
deletedArgs,
data = [{
field: "value"
}],
gridOptions = {
confirmDeleting: false,
fields: [
{ name: "field" }
],
controller: {
deleteItem: function(deletingItem) {
deleted = true;
}
},
onItemDeleting: function(e) {
deletingArgs = $.extend(true, {}, e);
},
onItemDeleted: function(e) {
deletedArgs = $.extend(true, {}, e);
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
grid.deleteItem(data[0]);
deepEqual(deletingArgs.item, { field: "value" }, "field and value is provided in deleting event args");
equal(deletingArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(deletingArgs.row.length, 1, "row element is provided in updating event args");
ok(deleted, "controller deleteItem called");
equal(grid.option("data").length, 0, "data row deleted");
deepEqual(deletedArgs.item, { field: "value" }, "item is provided in updating event args");
equal(deletedArgs.itemIndex, 0, "itemIndex is provided in updating event args");
equal(deletedArgs.row.length, 1, "row element is provided in updating event args");
});
test("deleteItem accepts row", function() {
var $element = $("#jsGrid"),
deletedItem,
itemToDelete = {
field: "value"
},
data = [itemToDelete],
gridOptions = {
confirmDeleting: false,
fields: [
{ name: "field" }
],
controller: {
deleteItem: function(deletingItem) {
deletedItem = deletingItem;
}
}
},
grid = new Grid($element, gridOptions);
grid.option("data", data);
var $row = $element.find("." + grid.oddRowClass).eq(0);
grid.deleteItem($row);
deepEqual(deletedItem, itemToDelete, "controller deleteItem called correctly");
equal(grid.option("data").length, 0, "data row deleted");
});
module("paging");
test("pager is rendered if necessary", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}, {}],
paging: false,
pageSize: 2
});
ok(grid._pagerContainer.is(":hidden"), "pager is hidden when paging=false");
equal(grid._pagerContainer.html(), "", "pager is not rendered when paging=false");
grid.option("paging", true);
ok(grid._pagerContainer.is(":visible"), "pager is visible when paging=true");
ok(grid._pagerContainer.html(), "pager is rendered when paging=true");
grid.option("data", [{}, {}]);
ok(grid._pagerContainer.is(":hidden"), "pager is hidden for single page");
ok(grid._pagerContainer.html(), "pager is rendered for single page when paging=true");
});
test("external pagerContainer", function() {
var $pagerContainer = $("<div>").appendTo("#qunit-fixture").hide(),
$element = $("#jsGrid");
new Grid($element, {
data: [{}, {}, {}],
pagerContainer: $pagerContainer,
paging: true,
pageSize: 2
});
ok($pagerContainer.is(":visible"), "external pager shown");
ok($pagerContainer.html(), "external pager rendered");
});
test("pager functionality", function() {
var $element = $("#jsGrid"),
pager,
pageChangedArgs,
grid = new Grid($element, {
data: [{}, {}, {}, {}, {}, {}, {}, {}, {}],
onPageChanged: function(args) {
pageChangedArgs = args;
},
paging: true,
pageSize: 2,
pageButtonCount: 3
});
equal(grid._pagesCount(), 5, "correct page count");
equal(grid.option("pageIndex"), 1, "pageIndex is initialized");
equal(grid._firstDisplayingPage, 1, "_firstDisplayingPage is initialized");
pager = grid._pagerContainer;
equal(pager.find("." + grid.currentPageClass).length, 1, "there is one current page");
ok(pager.find("." + grid.pageClass).eq(0).hasClass(grid.currentPageClass), "first page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
equal(pager.find("." + grid.pagerNavButtonClass).length, 5, "five nav buttons displayed: Fisrt Prev Next Last ...");
equal(pager.find("." + grid.pagerNavButtonInactiveClass).length, 2, "two nav buttons inactive: Fisrt Prev");
grid.openPage(2);
equal(pager.find("." + grid.currentPageClass).length, 1, "there is one current page");
ok(pager.find("." + grid.pageClass).eq(1).hasClass(grid.currentPageClass), "second page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
equal(pager.find("." + grid.pagerNavButtonClass).length, 5, "five nav buttons displayed: First Prev Next Last and ...");
equal(pageChangedArgs.pageIndex, 2, "onPageChanged callback provides pageIndex in arguments");
grid.showNextPages();
equal(grid._firstDisplayingPage, 3, "navigate by pages forward");
grid.showPrevPages();
equal(grid._firstDisplayingPage, 1, "navigate by pages backward");
grid.openPage(5);
equal(grid._firstDisplayingPage, 3, "opening next non-visible page moves first displaying page forward");
grid.openPage(2);
equal(grid._firstDisplayingPage, 2, "opening prev non-visible page moves first displaying page backward");
});
test("pager format", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}, {}, {}, {}, {}],
paging: true,
pageSize: 2,
pageIndex: 2,
pageButtonCount: 1,
pagerFormat: "a {pageIndex} {first} {prev} {pages} {next} {last} {pageCount} {itemCount} z",
pagePrevText: "<",
pageNextText: ">",
pageFirstText: "<<",
pageLastText: ">>",
pageNavigatorNextText: "np",
pageNavigatorPrevText: "pp"
});
grid._firstDisplayingPage = 2;
grid._refreshPager();
equal($.trim(grid._pagerContainer.text()), "a 2 << < pp2np > >> 3 6 z", "pager text follows the format specified");
});
test("pagerRenderer", function() {
var $element = $("#jsGrid");
var pagerRendererConfig;
var pageSize = 2;
var items = [{}, {}, {}, {}, {}, {}, {}];
var pageCount = Math.ceil(items.length / pageSize);
var grid = new Grid($element, {
data: items,
paging: true,
pageSize: pageSize,
pagerRenderer: function(pagerConfig) {
pagerRendererConfig = pagerConfig;
}
});
deepEqual(pagerRendererConfig, { pageIndex: 1, pageCount: pageCount });
grid.openPage(2);
deepEqual(pagerRendererConfig, { pageIndex: 2, pageCount: pageCount });
});
test("loading by page", function() {
var $element = $("#jsGrid"),
data = [],
itemCount = 20;
for(var i = 1; i <= itemCount; i += 1) {
data.push({
value: i
});
}
var gridOptions = {
pageLoading: true,
paging: true,
pageSize: 7,
fields: [
{ name: "value" }
],
controller: {
loadData: function(filter) {
var startIndex = (filter.pageIndex - 1) * filter.pageSize,
result = data.slice(startIndex, startIndex + filter.pageSize);
return {
data: result,
itemsCount: data.length
};
}
}
};
var grid = new Grid($element, gridOptions);
grid.loadData();
var pager = grid._pagerContainer;
var gridData = grid.option("data");
equal(gridData.length, 7, "loaded one page of data");
equal(gridData[0].value, 1, "loaded right data start value");
equal(gridData[gridData.length - 1].value, 7, "loaded correct data end value");
ok(pager.find("." + grid.pageClass).eq(0).hasClass(grid.currentPageClass), "first page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
grid.openPage(3);
gridData = grid.option("data");
equal(gridData.length, 6, "loaded last page of data");
equal(gridData[0].value, 15, "loaded right data start value");
equal(gridData[gridData.length - 1].value, 20, "loaded right data end value");
ok(pager.find("." + grid.pageClass).eq(2).hasClass(grid.currentPageClass), "third page is current");
equal(pager.find("." + grid.pageClass).length, 3, "three pages displayed");
});
test("'openPage' method ignores indexes out of range", function() {
var $element = $("#jsGrid"),
grid = new Grid($element, {
data: [{}, {}],
paging: true,
pageSize: 1
});
grid.openPage(0);
equal(grid.option("pageIndex"), 1, "too small index is ignored");
grid.openPage(3);
equal(grid.option("pageIndex"), 1, "too big index is ignored");
});
module("sorting");
test("sorting", function() {
var $element = $("#jsGrid"),
gridOptions = {
sorting: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
fields: [
{ name: "value", sorter: "number" }
]
},
grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortOrder, "asc", "asc sorting order for first click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(gridData[0].value, 1);
equal(gridData[1].value, 2);
equal(gridData[2].value, 3);
ok($th.hasClass(grid.sortableClass));
ok($th.hasClass(grid.sortAscClass));
$th.trigger("click");
equal(grid._sortOrder, "desc", "desc sorting order for second click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(gridData[0].value, 3);
equal(gridData[1].value, 2);
equal(gridData[2].value, 1);
ok(!$th.hasClass(grid.sortAscClass));
ok($th.hasClass(grid.sortDescClass));
});
test("sorting with pageLoading", function() {
var $element = $("#jsGrid"),
loadFilter,
gridOptions = {
sorting: true,
pageLoading: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
controller: {
loadData: function(filter) {
loadFilter = filter;
return {
itemsCount: 0,
data: []
};
}
},
fields: [
{ name: "value", sorter: "number" }
]
},
grid = new Grid($element, gridOptions);
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortOrder, "asc", "asc sorting order for first click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(loadFilter.sortOrder, "asc", "sort direction is provided in loadFilter");
equal(loadFilter.sortField, "value", "sort field is provided in loadFilter");
$th.trigger("click");
equal(grid._sortOrder, "desc", "desc sorting order for second click");
equal(grid._sortField, grid.fields[0], "sort field is set");
equal(loadFilter.sortOrder, "desc", "sort direction is provided in loadFilter");
equal(loadFilter.sortField, "value", "sort field is provided in loadFilter");
});
test("no sorting for column with sorting = false", function() {
var $element = $("#jsGrid");
var gridOptions = {
sorting: true,
data: [
{ value: 3 },
{ value: 2 },
{ value: 1 }
],
fields: [
{ name: "value", sorting: false }
]
};
var grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal(grid._sortField, null, "sort field is not set for the field with sorting=false");
equal(gridData[0].value, 3);
equal(gridData[1].value, 2);
equal(gridData[2].value, 1);
equal($th.hasClass(grid.sortableClass), false, "no sorting css for field with sorting=false");
equal($th.hasClass(grid.sortAscClass), false, "no sorting css for field with sorting=false");
});
test("sort accepts sorting config", function() {
strictEqual(deletedItem, null, "item was not deleted");
});
});
grid = new Grid($element, gridOptions);
deepEqual(grid.getSorting(), { field: undefined, order: undefined }, "undefined field and order before sorting");
grid.sort("value");
deepEqual(grid.getSorting(), { field: "value", order: "asc" }, "current sorting returned");
});
test("sorting css attached correctly when a field is hidden", function() {
var $element = $("#jsGrid");
var gridOptions = {
sorting: true,
data: [],
fields: [
{ name: "field1", visible: false },
{ name: "field2" }
]
};
var grid = new Grid($element, gridOptions);
var gridData = grid.option("data");
var $th = grid._headerRow.find("th").eq(0);
$th.trigger("click");
equal($th.hasClass(grid.sortAscClass), true, "sorting css is attached to first field");
});
module("canceling events");
test("cancel item edit", function() {
var $element = $("#jsGrid");
var data = [{}];
var gridOptions = {
editing: true,
onItemEditing: function(e) {
e.cancel = true;
},
controller: {
loadData: function() {
return data;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.loadData();
grid.editItem(data[0]);
strictEqual(grid._editingRow, null, "no editing row");
});
test("cancel controller.loadData", function() {
var $element = $("#jsGrid");
var gridOptions = {
onDataLoading: function(e) {
e.cancel = true;
},
controller: {
loadData: function() {
return [{}];
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.loadData();
equal(grid.option("data").length, 0, "no data loaded");
});
test("cancel controller.insertItem", function() {
var $element = $("#jsGrid");
var insertedItem = null;
var gridOptions = {
onItemInserting: function(e) {
e.cancel = true;
},
controller: {
insertItem: function(item) {
insertedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem({ test: "value" });
strictEqual(insertedItem, null, "item was not inserted");
});
test("cancel controller.updateItem", function() {
var $element = $("#jsGrid");
var updatedItem = null;
var existingItem = { test: "value" };
var gridOptions = {
data: [
existingItem
],
onItemUpdating: function(e) {
e.cancel = true;
},
controller: {
updateItem: function(item) {
updatedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.updateItem(existingItem, { test: "new_value" });
strictEqual(updatedItem, null, "item was not updated");
});
test("cancel controller.deleteItem", function() {
var $element = $("#jsGrid");
var deletingItem = { test: "value" };
var deletedItem = null;
var gridOptions = {
data: [
deletingItem
],
confirmDeleting: false,
onItemDeleting: function(e) {
e.cancel = true;
},
controller: {
deleteItem: function(item) {
deletedItem = item;
}
},
fields: [
{ name: "test" }
]
};
var grid = new Grid($element, gridOptions);
grid.deleteItem(deletingItem);
strictEqual(deletedItem, null, "item was not deleted");
});
module("complex properties binding");
test("rendering", function() {
var $element = $("#jsGrid");
var gridOptions = {
loadMessage: "",
data: [
{ complexProp: { prop: "test" } }
],
fields: [
{ name: "complexProp.prop", title: "" }
]
};
new Grid($element, gridOptions);
equal($element.text(), "test", "complex property value rendered");
});
test("editing", function() {
var $element = $("#jsGrid");
var gridOptions = {
editing: true,
data: [
{ complexProp: { prop: "test" } }
],
fields: [
{ type: "text", name: "complexProp.prop" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
equal(grid.fields[0].editControl.val(), "test", "complex property value set in editor");
});
test("should not fail if property is absent", function() {
var $element = $("#jsGrid");
var gridOptions = {
loadMessage: "",
data: [
{ complexProp: { } }
],
fields: [
{ name: "complexProp.subprop.prop", title: "" }
]
};
new Grid($element, gridOptions);
equal($element.text(), "", "rendered empty value");
});
test("inserting", function() {
var $element = $("#jsGrid");
var insertingItem;
var gridOptions = {
inserting: true,
fields: [
{ type: "text", name: "complexProp.prop" }
],
onItemInserting: function(args) {
insertingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
deepEqual(insertingItem, { complexProp: { prop: "test" } }, "inserting item has complex properties");
});
test("filtering", function() {
var $element = $("#jsGrid");
var loadFilter;
var gridOptions = {
filtering: true,
fields: [
{ type: "text", name: "complexProp.prop" }
],
controller: {
loadData: function(filter) {
loadFilter = filter;
}
}
};
var grid = new Grid($element, gridOptions);
grid.fields[0].filterControl.val("test");
grid.search();
deepEqual(loadFilter, { complexProp: { prop: "test" } }, "filter has complex properties");
});
test("updating", function() {
var $element = $("#jsGrid");
var updatingItem;
var gridOptions = {
editing: true,
data: [
{ complexProp: { } }
],
fields: [
{ type: "text", name: "complexProp.prop" }
],
onItemUpdating: function(args) {
updatingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test");
grid.updateItem();
deepEqual(updatingItem, { complexProp: { prop: "test" } }, "updating item has complex properties");
});
test("update nested prop", function() {
var $element = $("#jsGrid");
var updatingItem;
var previousItem;
var gridOptions = {
editing: true,
data: [
{ prop: { subprop1: "test1", subprop2: "test2" } }
],
fields: [
{ type: "text", name: "prop.subprop1" },
{ type: "text", name: "prop.subprop2" }
],
onItemUpdating: function(args) {
updatingItem = args.item;
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("new_test1");
grid.updateItem();
var expectedUpdatingItem = {
prop: {
subprop1: "new_test1",
subprop2: "test2"
}
};
deepEqual(updatingItem, expectedUpdatingItem, "updating item has nested properties");
});
test("updating deeply nested prop", function() {
var $element = $("#jsGrid");
var updatingItem;
var previousItem;
var gridOptions = {
editing: true,
data: [
{ complexProp: { subprop1: { another_prop: "test" } } }
],
fields: [
{ type: "text", name: "complexProp.subprop1.prop1" },
{ type: "text", name: "complexProp.subprop1.subprop2.prop12" }
],
onItemUpdating: function(args) {
updatingItem = $.extend(true, {}, args.item);
previousItem = $.extend(true, {}, args.previousItem);
}
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test1");
grid.fields[1].editControl.val("test2");
grid.updateItem();
var expectedUpdatingItem = {
complexProp: {
subprop1: {
another_prop: "test",
prop1: "test1",
subprop2: { prop12: "test2" }
}
}
};
var expectedPreviousItem = {
complexProp: {
subprop1: {
another_prop: "test"
}
}
};
deepEqual(updatingItem, expectedUpdatingItem, "updating item has deeply nested properties");
deepEqual(previousItem, expectedPreviousItem, "previous item preserved correctly");
});
module("validation");
test("insertItem should call validation.validate", function() {
var $element = $("#jsGrid");
var fieldValidationRules = { test: "value" };
var validatingArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function(args) {
validatingArgs = args;
return [];
}
},
fields: [
{ type: "text", name: "Name", validate: fieldValidationRules }
]
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem();
deepEqual(validatingArgs, { value: "test", item: { Name: "test" }, itemIndex: -1,
row: grid._insertRow, rules: fieldValidationRules }, "validating args is provided");
});
test("insertItem rejected when data is not valid", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.fields[0].insertControl.val("test");
grid.insertItem().done(function() {
ok(false, "insertItem should not be completed");
}).fail(function() {
ok(true, "insertItem should fail");
});
});
test("invalidClass is attached on invalid cell on inserting", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Id", visible: false },
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
var $insertCell = grid._insertRow.children().eq(0);
grid.insertItem();
ok($insertCell.hasClass(grid.invalidClass), "invalid class is attached");
equal($insertCell.attr("title"), "Error", "cell tooltip contains error message");
});
test("onItemInvalid callback", function() {
var $element = $("#jsGrid");
var errors = ["Error"];
var onItemInvalidCalled = 0;
var onItemInvalidArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: $.noop,
onItemInvalid: function(args) {
onItemInvalidCalled++;
onItemInvalidArgs = args;
},
validation: {
validate: function(args) {
return !args.value ? errors : [];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem();
equal(onItemInvalidCalled, 1, "onItemInvalid is called, when item data is invalid");
deepEqual(onItemInvalidArgs, { grid: grid, errors: [{ field: grid.fields[0], message: "Error" }],
item: { Name: "" }, itemIndex: -1, row: grid._insertRow }, "arguments provided");
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(onItemInvalidCalled, 1, "onItemInvalid was not called, when data is valid");
});
test("invalidNotify", function() {
var $element = $("#jsGrid");
var errors = ["Error"];
var invalidNotifyCalled = 0;
var invalidNotifyArgs;
var gridOptions = {
data: [],
inserting: true,
invalidNotify: function(args) {
invalidNotifyCalled++;
invalidNotifyArgs = args;
},
validation: {
validate: function(args) {
return !args.value ? errors : [];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.insertItem();
equal(invalidNotifyCalled, 1, "invalidNotify is called, when item data is invalid");
deepEqual(invalidNotifyArgs, { grid: grid, errors: [{ field: grid.fields[0], message: "Error" }],
row: grid._insertRow, item: { Name: "" }, itemIndex: -1 }, "arguments provided");
grid.fields[0].insertControl.val("test");
grid.insertItem();
equal(invalidNotifyCalled, 1, "invalidNotify was not called, when data is valid");
});
test("invalidMessage", function() {
var $element = $("#jsGrid");
var invalidMessage;
var originalAlert = window.alert;
window.alert = function(message) {
invalidMessage = message;
};
try {
Grid.prototype.invalidMessage = "InvalidTest";
Grid.prototype.invalidNotify({ errors: [{ message: "Message1" }, { message: "Message2" }] });
var expectedInvalidMessage = ["InvalidTest", "Message1", "Message2"].join("\n");
equal(invalidMessage, expectedInvalidMessage, "message contains invalidMessage and field error messages");
} finally {
window.alert = originalAlert;
}
});
test("updateItem should call validation.validate", function() {
var $element = $("#jsGrid");
var validatingArgs;
var gridOptions = {
data: [{ Name: "" }],
editing: true,
invalidNotify: $.noop,
validation: {
validate: function(args) {
validatingArgs = args;
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: "required" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.fields[0].editControl.val("test");
grid.updateItem();
deepEqual(validatingArgs, { value: "test", item: { Name: "test" }, itemIndex: 0,
row: grid._getEditRow(), rules: "required" }, "validating args is provided");
});
test("invalidClass is attached on invalid cell on updating", function() {
var $element = $("#jsGrid");
var gridOptions = {
data: [{}],
editing: true,
invalidNotify: $.noop,
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", validate: true }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
var $editCell = grid._getEditRow().children().eq(0);
grid.updateItem();
ok($editCell.hasClass(grid.invalidClass), "invalid class is attached");
equal($editCell.attr("title"), "Error", "cell tooltip contains error message");
});
test("validation should ignore not editable fields", function() {
var invalidNotifyCalled = 0;
var $element = $("#jsGrid");
var validatingArgs;
var gridOptions = {
data: [{ Name: "" }],
editing: true,
invalidNotify: function() {
invalidNotifyCalled++;
},
validation: {
validate: function() {
return ["Error"];
}
},
fields: [
{ type: "text", name: "Name", editing: false, validate: "required" }
]
};
var grid = new Grid($element, gridOptions);
grid.editItem(gridOptions.data[0]);
grid.updateItem();
equal(invalidNotifyCalled, 0, "data is valid");
});
module("api");
test("reset method should go the first page when pageLoading is truned on", function() {
var items = [{ Name: "1" }, { Name: "2" }];
var $element = $("#jsGrid");
var gridOptions = {
paging: true,
pageSize: 1,
pageLoading: true,
autoload: true,
controller: {
loadData: function(args) {
return {
data: [items[args.pageIndex - 1]],
itemsCount: items.length
};
}
},
fields: [
{ type: "text", name: "Name" }
]
};
var grid = new Grid($element, gridOptions);
grid.openPage(2);
grid.reset();
equal(grid._bodyGrid.text(), "1", "grid content reset");
});
module("i18n");
test("set locale by name", function() {
jsGrid.locales.my_lang = {
grid: {
test: "test_text"
}
};
jsGrid.locale("my_lang");
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "test"), "test_text", "option localized");
});
test("set locale by config", function() {
jsGrid.locale( {
grid: {
test: "test_text"
}
});
var $element = $("#jsGrid").jsGrid({});
equal($element.jsGrid("option", "test"), "test_text", "option localized");
});
test("locale throws exception for unknown locale", function() {
throws(function() {
jsGrid.locale("unknown_lang");
}, /unknown_lang/, "locale threw an exception");
});
module("controller promise");
asyncTest("should support jQuery promise success callback", 1, function() {
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
var d = $.Deferred();
setTimeout(function() {
d.resolve(data);
start();
});
return d.promise();
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
asyncTest("should support jQuery promise fail callback", 1, function() {
var failArgs = {};
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
var d = $.Deferred();
setTimeout(function() {
d.reject(failArgs);
start();
});
return d.promise();
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.fail(function(result) {
equal(result, failArgs, "fail args provided to fail callback");
});
});
asyncTest("should support JS promise success callback", 1, function() {
if(typeof Promise === "undefined") {
ok(true, "Promise not supported");
start();
return;
}
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return new Promise(function(resolve, reject) {
setTimeout(function() {
resolve(data);
start();
});
});
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
asyncTest("should support JS promise fail callback", 1, function() {
if(typeof Promise === "undefined") {
ok(true, "Promise not supported");
start();
return;
}
var failArgs = {};
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return new Promise(function(resolve, reject) {
setTimeout(function() {
reject(failArgs);
start();
});
});
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.fail(function(result) {
equal(result, failArgs, "fail args provided to fail callback");
});
});
test("should support non-promise result", 1, function() {
var data = [];
var gridOptions = {
autoload: false,
controller: {
loadData: function() {
return data;
}
}
};
var grid = new Grid($("#jsGrid"), gridOptions);
var promise = grid._controllerCall("loadData", {}, false, $.noop);
promise.done(function(result) {
equal(result, data, "data provided to done callback");
});
});
module("renderTemplate");
test("should pass undefined and null arguments to the renderer", function() {
var rendererArgs;
var rendererContext;
var context = {};
var renderer = function() {
rendererArgs = arguments;
rendererContext = this;
};
Grid.prototype.renderTemplate(renderer, context, { arg1: undefined, arg2: null, arg3: "test" });
equal(rendererArgs.length, 3);
strictEqual(rendererArgs[0], undefined, "undefined passed");
strictEqual(rendererArgs[1], null, "null passed");
strictEqual(rendererArgs[2], "test", "null passed");
strictEqual(rendererContext, context, "context is preserved");
});
module("Data Export", {
setup: function() {
this.exportConfig = {};
this.exportConfig.type = "csv";
this.exportConfig.subset = "all";
this.exportConfig.delimiter = "|";
this.exportConfig.includeHeaders = true;
this.exportConfig.encapsulate = true;
this.element = $("#jsGrid");
this.gridOptions = {
width: "100%",
height: "400px",
inserting: true,
editing: true,
sorting: true,
paging: true,
pageSize: 2,
data: [
{ "Name": "Otto Clay", "Country": 1, "Married": false },
{ "Name": "Connor Johnston", "Country": 2, "Married": true },
{ "Name": "Lacey Hess", "Country": 2, "Married": false },
{ "Name": "Timothy Henson", "Country": 1, "Married": true }
],
fields: [
{ name: "Name", type: "text", width: 150, validate: "required" },
{ name: "Country", type: "select", items: [{ Name: "United States", Id: 1 },{ Name: "Canada", Id: 2 }], valueField: "Id", textField: "Name" },
{ name: "Married", type: "checkbox", title: "Is Married", sorting: false },
{ type: "control" }
]
}
}
});
/* Base Choice Criteria
type: csv
subset: all
delimiter: |
includeHeaders: true
encapsulate: true
*/
test("Should export data: Base Choice",function(){
var grid = new Grid($(this.element), this.gridOptions);
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV configured to Base Choice Criteria -- Check Source");
});
test("Should export data: defaults = BCC",function(){
var grid = new Grid($(this.element), this.gridOptions);
var data = grid.exportData();
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV with all defaults -- Should be equal to Base Choice");
});
test("Should export data: subset=visible", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.subset = "visible";
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
//expected += '"Lacey Hess"|"Canada"|"false"\r\n';
//expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV of visible records");
});
test("Should export data: delimiter=;", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.delimiter = ";";
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name";"Country";"Is Married"\r\n';
expected += '"Otto Clay";"United States";"false"\r\n';
expected += '"Connor Johnston";"Canada";"true"\r\n';
expected += '"Lacey Hess";"Canada";"false"\r\n';
expected += '"Timothy Henson";"United States";"true"\r\n';
equal(data, expected, "Output CSV with non-default delimiter");
});
test("Should export data: headers=false", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.includeHeaders = false;
var data = grid.exportData(this.exportConfig);
var expected = "";
//expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
expected += '"Connor Johnston"|"Canada"|"true"\r\n';
expected += '"Lacey Hess"|"Canada"|"false"\r\n';
expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV without Headers");
});
test("Should export data: encapsulate=false", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig.encapsulate = false;
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += 'Name|Country|Is Married\r\n';
expected += 'Otto Clay|United States|false\r\n';
expected += 'Connor Johnston|Canada|true\r\n';
expected += 'Lacey Hess|Canada|false\r\n';
expected += 'Timothy Henson|United States|true\r\n';
equal(data, expected, "Output CSV without encapsulation");
});
test("Should export filtered data", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig['filter'] = function(item){
if (item["Name"].indexOf("O") === 0)
return true
};
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"false"\r\n';
//expected += '"Connor Johnston"|"Canada"|"true"\r\n';
//expected += '"Lacey Hess"|"Canada"|"false"\r\n';
//expected += '"Timothy Henson"|"United States"|"true"\r\n';
equal(data, expected, "Output CSV filtered to show names starting with O");
});
test("Should export data: transformed value", function(){
var grid = new Grid($(this.element), this.gridOptions);
this.exportConfig['transforms'] = {};
this.exportConfig.transforms['Married'] = function(value){
if (value === true) return "Yes"
if (value === false) return "No"
};
var data = grid.exportData(this.exportConfig);
var expected = "";
expected += '"Name"|"Country"|"Is Married"\r\n';
expected += '"Otto Clay"|"United States"|"No"\r\n';
expected += '"Connor Johnston"|"Canada"|"Yes"\r\n';
expected += '"Lacey Hess"|"Canada"|"No"\r\n';
expected += '"Timothy Henson"|"United States"|"Yes"\r\n';
equal(data, expected, "Output CSV column value transformed properly");
});
});
<MSG> Core: Add tests for dot notation for properties binding
<DFF> @@ -1910,4 +1910,52 @@ $(function() {
strictEqual(deletedItem, null, "item was not deleted");
});
+
+
+ module("complex properties binding");
+
+ test("rendering", function() {
+ var $element = $("#jsGrid");
+
+ var gridOptions = {
+
+ loadMessage: "",
+
+ data: [
+ { complexProp: { prop: "test" } }
+ ],
+
+ fields: [
+ { name: "complexProp.prop", title: "" }
+ ]
+ };
+
+ new Grid($element, gridOptions);
+
+ strictEqual($element.text(), "test", "complex property value rendered");
+ });
+
+ test("editing", function() {
+ var $element = $("#jsGrid");
+
+ var gridOptions = {
+
+ editing: true,
+
+ data: [
+ { complexProp: { prop: "test" } }
+ ],
+
+ fields: [
+ { type: "text", name: "complexProp.prop" }
+ ]
+ };
+
+ var grid = new Grid($element, gridOptions);
+
+ grid.editItem(gridOptions.data[0]);
+ strictEqual(grid.fields[0].editControl.val(), "test", "complex property value set in editor");
+ });
+
+
});
| 48 | Core: Add tests for dot notation for properties binding | 0 | .js | tests | mit | tabalinas/jsgrid |
10057832 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057833 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057834 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057835 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057836 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057837 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057838 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057839 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057840 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057841 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057842 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057843 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057844 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057845 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057846 | <NME> TextMateSharp
<BEF> ADDFILE
<MSG> add textmatesharp as a submodule.
<DFF> @@ -0,0 +1,1 @@
+Subproject commit 2586144d922638c5c5bba8ae0bda69d918b5aad8
| 1 | add textmatesharp as a submodule. | 0 | TextMateSharp | mit | AvaloniaUI/AvaloniaEdit |
|
10057847 | <NME> layout-assembly.md
<BEF> ## View Assembly
When View modules are nested, a heiracical view structure is formed. For flexbibily, *FruitMachine* allows nested views to be assembled in a variety of ways.
#### Manual
```js
var layout = new Layout();
var apple = new Apple();
var orange = new Orange();
apple.add(orange);
layout.add(apple);
layout.children.length; //=> 1
apple.children.length; //=> 1
orange.children.length; //=> 0
```
#### Lazy
```js
var layout = new Layout({
children: {
1: {
module: 'apple',
children: {
1: {
module: 'orange'
}
}
}
}
});
layout.children.length; //=> 1
apple.children.length; //=> 1
orange.children.length; //=> 0
```
#### Super lazy
```js
var layout = fruitmachine({
module: 'layout',
children: {
1: {
module: 'apple',
children: {
1: {
module: 'orange'
}
}
}
}
});
layout.children.length; //=> 1
apple.children.length; //=> 1
orange.children.length; //=> 0
```
#### Removing modules
Sometimes you may wish to add or replace modules before the layout is rendered. This is a good use case for `.remove()`.
```js
var layout = fruitmachine({
module: 'layout',
children: [
1: {
module: 'apple',
children: {
1: {
module: 'orange'
}
}
}
]
});
var apple = layout.module('apple');
var orange = layout.module('orange');
var banana = new Banana();
apple
.remove(orange)
.add(banana, { slot: 1 });
```
<MSG> flexbibily
<DFF> @@ -1,6 +1,6 @@
## View Assembly
-When View modules are nested, a heiracical view structure is formed. For flexbibily, *FruitMachine* allows nested views to be assembled in a variety of ways.
+When View modules are nested, a heiracical view structure is formed. For flexibility, *FruitMachine* allows nested views to be assembled in a variety of ways.
#### Manual
| 1 | flexbibily | 1 | .md | md | mit | ftlabs/fruitmachine |
10057848 | <NME> CompletionWindow.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 Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
namespace AvaloniaEdit.CodeCompletion
{
/// <summary>
/// The code completion window.
/// </summary>
public class CompletionWindow : CompletionWindowBase
{
private PopupWithCustomPosition _toolTip;
private ContentControl _toolTipContent;
/// <summary>
/// Gets the completion list used in this completion window.
/// </summary>
public CompletionList CompletionList { get; }
/// <summary>
/// Creates a new code completion window.
/// </summary>
public CompletionWindow(TextArea textArea) : base(textArea)
{
CompletionList = new CompletionList();
// keep height automatic
CloseAutomatically = true;
MaxHeight = 225;
Width = 175;
Child = CompletionList;
// prevent user from resizing window to 0x0
MinHeight = 15;
MinWidth = 30;
_toolTipContent = new ContentControl();
_toolTipContent.Classes.Add("ToolTip");
_toolTip = new PopupWithCustomPosition
{
IsLightDismissEnabled = true,
PlacementTarget = this,
PlacementMode = PlacementMode.Right,
Child = _toolTipContent,
};
LogicalChildren.Add(_toolTip);
//_toolTip.Closed += (o, e) => ((Popup)o).Child = null;
AttachEvents();
}
protected override void OnClosed()
{
base.OnClosed();
if (_toolTip != null)
{
_toolTip.IsOpen = false;
_toolTip = null;
_toolTipContent = null;
}
}
#region ToolTip handling
private void CompletionList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (_toolTipContent == null) return;
var item = CompletionList.SelectedItem;
var description = item?.Description;
if (description != null)
{
if (description is string descriptionText)
{
_toolTipContent.Content = new TextBlock
{
Text = descriptionText,
TextWrapping = TextWrapping.Wrap
};
}
else
};
}
else
{
_toolTipContent.Content = description;
}
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
_toolTip.Offset = new PixelPoint(2, index * 20);
}
_toolTip.IsOpen = true;
}
_toolTip.PlacementTarget = this.Host as PopupRoot;
_toolTip.IsOpen = true;
}
else
{
_toolTip.IsOpen = false;
}
}
#endregion
private void CompletionList_InsertionRequested(object sender, EventArgs e)
{
Hide();
// The window must close before Complete() is called.
// If the Complete callback pushes stacked input handlers, we don't want to pop those when the CC window closes.
var item = CompletionList.SelectedItem;
item?.Complete(TextArea, new AnchorSegment(TextArea.Document, StartOffset, EndOffset - StartOffset), e);
}
private void AttachEvents()
{
CompletionList.InsertionRequested += CompletionList_InsertionRequested;
CompletionList.SelectionChanged += CompletionList_SelectionChanged;
TextArea.Caret.PositionChanged += CaretPositionChanged;
TextArea.PointerWheelChanged += TextArea_MouseWheel;
TextArea.TextInput += TextArea_PreviewTextInput;
}
/// <inheritdoc/>
protected override void DetachEvents()
{
CompletionList.InsertionRequested -= CompletionList_InsertionRequested;
CompletionList.SelectionChanged -= CompletionList_SelectionChanged;
TextArea.Caret.PositionChanged -= CaretPositionChanged;
TextArea.PointerWheelChanged -= TextArea_MouseWheel;
TextArea.TextInput -= TextArea_PreviewTextInput;
base.DetachEvents();
}
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (!e.Handled)
{
CompletionList.HandleKey(e);
}
}
private void TextArea_PreviewTextInput(object sender, TextInputEventArgs e)
{
e.Handled = RaiseEventPair(this, null, TextInputEvent,
new TextInputEventArgs { Device = e.Device, Text = e.Text });
}
private void TextArea_MouseWheel(object sender, PointerWheelEventArgs e)
{
e.Handled = RaiseEventPair(GetScrollEventTarget(),
null, PointerWheelChangedEvent, e);
}
private Control GetScrollEventTarget()
{
if (CompletionList == null)
return this;
return CompletionList.ScrollViewer ?? CompletionList.ListBox ?? (Control)CompletionList;
}
/// <summary>
/// Gets/Sets whether the completion window should close automatically.
/// The default value is true.
/// </summary>
public bool CloseAutomatically { get; set; }
/// <inheritdoc/>
protected override bool CloseOnFocusLost => CloseAutomatically;
/// <summary>
/// When this flag is set, code completion closes if the caret moves to the
/// beginning of the allowed range. This is useful in Ctrl+Space and "complete when typing",
/// but not in dot-completion.
/// Has no effect if CloseAutomatically is false.
/// </summary>
public bool CloseWhenCaretAtBeginning { get; set; }
private void CaretPositionChanged(object sender, EventArgs e)
{
var offset = TextArea.Caret.Offset;
if (offset == StartOffset)
{
if (CloseAutomatically && CloseWhenCaretAtBeginning)
{
Hide();
}
else
{
CompletionList.SelectItem(string.Empty);
if (CompletionList.ListBox.ItemCount == 0) IsVisible = false;
else IsVisible = true;
}
return;
}
if (offset < StartOffset || offset > EndOffset)
{
if (CloseAutomatically)
{
Hide();
}
}
else
{
var document = TextArea.Document;
if (document != null)
{
CompletionList.SelectItem(document.GetText(StartOffset, offset - StartOffset));
if (CompletionList.ListBox.ItemCount == 0) IsVisible = false;
else IsVisible = true;
}
}
}
}
}
<MSG> style improvement
<DFF> @@ -107,7 +107,7 @@ namespace AvaloniaEdit.CodeCompletion
};
}
else
- {
+ {
_toolTipContent.Content = description;
}
@@ -117,7 +117,7 @@ namespace AvaloniaEdit.CodeCompletion
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
- _toolTip.Offset = new PixelPoint(2, index * 20);
+ _toolTip.Offset = new PixelPoint(2, index * 20); //Todo find way to measure item height
}
_toolTip.IsOpen = true;
}
| 2 | style improvement | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
10057849 | <NME> CompletionWindow.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 Avalonia;
using AvaloniaEdit.Document;
using AvaloniaEdit.Editing;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Input;
using Avalonia.Media;
namespace AvaloniaEdit.CodeCompletion
{
/// <summary>
/// The code completion window.
/// </summary>
public class CompletionWindow : CompletionWindowBase
{
private PopupWithCustomPosition _toolTip;
private ContentControl _toolTipContent;
/// <summary>
/// Gets the completion list used in this completion window.
/// </summary>
public CompletionList CompletionList { get; }
/// <summary>
/// Creates a new code completion window.
/// </summary>
public CompletionWindow(TextArea textArea) : base(textArea)
{
CompletionList = new CompletionList();
// keep height automatic
CloseAutomatically = true;
MaxHeight = 225;
Width = 175;
Child = CompletionList;
// prevent user from resizing window to 0x0
MinHeight = 15;
MinWidth = 30;
_toolTipContent = new ContentControl();
_toolTipContent.Classes.Add("ToolTip");
_toolTip = new PopupWithCustomPosition
{
IsLightDismissEnabled = true,
PlacementTarget = this,
PlacementMode = PlacementMode.Right,
Child = _toolTipContent,
};
LogicalChildren.Add(_toolTip);
//_toolTip.Closed += (o, e) => ((Popup)o).Child = null;
AttachEvents();
}
protected override void OnClosed()
{
base.OnClosed();
if (_toolTip != null)
{
_toolTip.IsOpen = false;
_toolTip = null;
_toolTipContent = null;
}
}
#region ToolTip handling
private void CompletionList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (_toolTipContent == null) return;
var item = CompletionList.SelectedItem;
var description = item?.Description;
if (description != null)
{
if (description is string descriptionText)
{
_toolTipContent.Content = new TextBlock
{
Text = descriptionText,
TextWrapping = TextWrapping.Wrap
};
}
else
};
}
else
{
_toolTipContent.Content = description;
}
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
_toolTip.Offset = new PixelPoint(2, index * 20);
}
_toolTip.IsOpen = true;
}
_toolTip.PlacementTarget = this.Host as PopupRoot;
_toolTip.IsOpen = true;
}
else
{
_toolTip.IsOpen = false;
}
}
#endregion
private void CompletionList_InsertionRequested(object sender, EventArgs e)
{
Hide();
// The window must close before Complete() is called.
// If the Complete callback pushes stacked input handlers, we don't want to pop those when the CC window closes.
var item = CompletionList.SelectedItem;
item?.Complete(TextArea, new AnchorSegment(TextArea.Document, StartOffset, EndOffset - StartOffset), e);
}
private void AttachEvents()
{
CompletionList.InsertionRequested += CompletionList_InsertionRequested;
CompletionList.SelectionChanged += CompletionList_SelectionChanged;
TextArea.Caret.PositionChanged += CaretPositionChanged;
TextArea.PointerWheelChanged += TextArea_MouseWheel;
TextArea.TextInput += TextArea_PreviewTextInput;
}
/// <inheritdoc/>
protected override void DetachEvents()
{
CompletionList.InsertionRequested -= CompletionList_InsertionRequested;
CompletionList.SelectionChanged -= CompletionList_SelectionChanged;
TextArea.Caret.PositionChanged -= CaretPositionChanged;
TextArea.PointerWheelChanged -= TextArea_MouseWheel;
TextArea.TextInput -= TextArea_PreviewTextInput;
base.DetachEvents();
}
/// <inheritdoc/>
protected override void OnKeyDown(KeyEventArgs e)
{
base.OnKeyDown(e);
if (!e.Handled)
{
CompletionList.HandleKey(e);
}
}
private void TextArea_PreviewTextInput(object sender, TextInputEventArgs e)
{
e.Handled = RaiseEventPair(this, null, TextInputEvent,
new TextInputEventArgs { Device = e.Device, Text = e.Text });
}
private void TextArea_MouseWheel(object sender, PointerWheelEventArgs e)
{
e.Handled = RaiseEventPair(GetScrollEventTarget(),
null, PointerWheelChangedEvent, e);
}
private Control GetScrollEventTarget()
{
if (CompletionList == null)
return this;
return CompletionList.ScrollViewer ?? CompletionList.ListBox ?? (Control)CompletionList;
}
/// <summary>
/// Gets/Sets whether the completion window should close automatically.
/// The default value is true.
/// </summary>
public bool CloseAutomatically { get; set; }
/// <inheritdoc/>
protected override bool CloseOnFocusLost => CloseAutomatically;
/// <summary>
/// When this flag is set, code completion closes if the caret moves to the
/// beginning of the allowed range. This is useful in Ctrl+Space and "complete when typing",
/// but not in dot-completion.
/// Has no effect if CloseAutomatically is false.
/// </summary>
public bool CloseWhenCaretAtBeginning { get; set; }
private void CaretPositionChanged(object sender, EventArgs e)
{
var offset = TextArea.Caret.Offset;
if (offset == StartOffset)
{
if (CloseAutomatically && CloseWhenCaretAtBeginning)
{
Hide();
}
else
{
CompletionList.SelectItem(string.Empty);
if (CompletionList.ListBox.ItemCount == 0) IsVisible = false;
else IsVisible = true;
}
return;
}
if (offset < StartOffset || offset > EndOffset)
{
if (CloseAutomatically)
{
Hide();
}
}
else
{
var document = TextArea.Document;
if (document != null)
{
CompletionList.SelectItem(document.GetText(StartOffset, offset - StartOffset));
if (CompletionList.ListBox.ItemCount == 0) IsVisible = false;
else IsVisible = true;
}
}
}
}
}
<MSG> style improvement
<DFF> @@ -107,7 +107,7 @@ namespace AvaloniaEdit.CodeCompletion
};
}
else
- {
+ {
_toolTipContent.Content = description;
}
@@ -117,7 +117,7 @@ namespace AvaloniaEdit.CodeCompletion
if (CompletionList.CurrentList != null)
{
int index = CompletionList.CurrentList.IndexOf(item);
- _toolTip.Offset = new PixelPoint(2, index * 20);
+ _toolTip.Offset = new PixelPoint(2, index * 20); //Todo find way to measure item height
}
_toolTip.IsOpen = true;
}
| 2 | style improvement | 2 | .cs | cs | mit | AvaloniaUI/AvaloniaEdit |
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