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viewer.js

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+/* Copyright 2016 Mozilla Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import { RenderingStates, ScrollMode, SpreadMode } from "./ui_utils.js";
+import { AppOptions } from "./app_options.js";
+import { LinkTarget } from "./pdf_link_service.js";
+import { PDFViewerApplication } from "./app.js";
+
+/* eslint-disable-next-line no-unused-vars */
+const pdfjsVersion =
+  typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_VERSION") : void 0;
+/* eslint-disable-next-line no-unused-vars */
+const pdfjsBuild =
+  typeof PDFJSDev !== "undefined" ? PDFJSDev.eval("BUNDLE_BUILD") : void 0;
+
+const AppConstants =
+  typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")
+    ? { LinkTarget, RenderingStates, ScrollMode, SpreadMode }
+    : null;
+
+window.PDFViewerApplication = PDFViewerApplication;
+window.PDFViewerApplicationConstants = AppConstants;
+window.PDFViewerApplicationOptions = AppOptions;
+
+function getViewerConfiguration() {
+  return {
+    appContainer: document.body,
+    principalContainer: document.getElementById("mainContainer"),
+    mainContainer: document.getElementById("viewerContainer"),
+    viewerContainer: document.getElementById("viewer"),
+    toolbar: {
+      container: document.getElementById("toolbarContainer"),
+      numPages: document.getElementById("numPages"),
+      pageNumber: document.getElementById("pageNumber"),
+      scaleSelect: document.getElementById("scaleSelect"),
+      customScaleOption: document.getElementById("customScaleOption"),
+      previous: document.getElementById("previous"),
+      next: document.getElementById("next"),
+      zoomIn: document.getElementById("zoomInButton"),
+      zoomOut: document.getElementById("zoomOutButton"),
+      print: document.getElementById("printButton"),
+      editorFreeTextButton: document.getElementById("editorFreeTextButton"),
+      editorFreeTextParamsToolbar: document.getElementById(
+        "editorFreeTextParamsToolbar"
+      ),
+      editorHighlightButton: document.getElementById("editorHighlightButton"),
+      editorHighlightParamsToolbar: document.getElementById(
+        "editorHighlightParamsToolbar"
+      ),
+      editorHighlightColorPicker: document.getElementById(
+        "editorHighlightColorPicker"
+      ),
+      editorInkButton: document.getElementById("editorInkButton"),
+      editorInkParamsToolbar: document.getElementById("editorInkParamsToolbar"),
+      editorStampButton: document.getElementById("editorStampButton"),
+      editorStampParamsToolbar: document.getElementById(
+        "editorStampParamsToolbar"
+      ),
+      download: document.getElementById("downloadButton"),
+    },
+    secondaryToolbar: {
+      toolbar: document.getElementById("secondaryToolbar"),
+      toggleButton: document.getElementById("secondaryToolbarToggleButton"),
+      presentationModeButton: document.getElementById("presentationMode"),
+      openFileButton:
+        typeof PDFJSDev === "undefined" || PDFJSDev.test("GENERIC")
+          ? document.getElementById("secondaryOpenFile")
+          : null,
+      printButton: document.getElementById("secondaryPrint"),
+      downloadButton: document.getElementById("secondaryDownload"),
+      viewBookmarkButton: document.getElementById("viewBookmark"),
+      firstPageButton: document.getElementById("firstPage"),
+      lastPageButton: document.getElementById("lastPage"),
+      pageRotateCwButton: document.getElementById("pageRotateCw"),
+      pageRotateCcwButton: document.getElementById("pageRotateCcw"),
+      cursorSelectToolButton: document.getElementById("cursorSelectTool"),
+      cursorHandToolButton: document.getElementById("cursorHandTool"),
+      scrollPageButton: document.getElementById("scrollPage"),
+      scrollVerticalButton: document.getElementById("scrollVertical"),
+      scrollHorizontalButton: document.getElementById("scrollHorizontal"),
+      scrollWrappedButton: document.getElementById("scrollWrapped"),
+      spreadNoneButton: document.getElementById("spreadNone"),
+      spreadOddButton: document.getElementById("spreadOdd"),
+      spreadEvenButton: document.getElementById("spreadEven"),
+      imageAltTextSettingsButton: document.getElementById(
+        "imageAltTextSettings"
+      ),
+      imageAltTextSettingsSeparator: document.getElementById(
+        "imageAltTextSettingsSeparator"
+      ),
+      documentPropertiesButton: document.getElementById("documentProperties"),
+    },
+    sidebar: {
+      // Divs (and sidebar button)
+      outerContainer: document.getElementById("outerContainer"),
+      sidebarContainer: document.getElementById("sidebarContainer"),
+      toggleButton: document.getElementById("sidebarToggleButton"),
+      resizer: document.getElementById("sidebarResizer"),
+      // Buttons
+      thumbnailButton: document.getElementById("viewThumbnail"),
+      outlineButton: document.getElementById("viewOutline"),
+      attachmentsButton: document.getElementById("viewAttachments"),
+      layersButton: document.getElementById("viewLayers"),
+      // Views
+      thumbnailView: document.getElementById("thumbnailView"),
+      outlineView: document.getElementById("outlineView"),
+      attachmentsView: document.getElementById("attachmentsView"),
+      layersView: document.getElementById("layersView"),
+      // View-specific options
+      currentOutlineItemButton: document.getElementById("currentOutlineItem"),
+    },
+    findBar: {
+      bar: document.getElementById("findbar"),
+      toggleButton: document.getElementById("viewFindButton"),
+      findField: document.getElementById("findInput"),
+      highlightAllCheckbox: document.getElementById("findHighlightAll"),
+      caseSensitiveCheckbox: document.getElementById("findMatchCase"),
+      matchDiacriticsCheckbox: document.getElementById("findMatchDiacritics"),
+      entireWordCheckbox: document.getElementById("findEntireWord"),
+      findMsg: document.getElementById("findMsg"),
+      findResultsCount: document.getElementById("findResultsCount"),
+      findPreviousButton: document.getElementById("findPreviousButton"),
+      findNextButton: document.getElementById("findNextButton"),
+    },
+    passwordOverlay: {
+      dialog: document.getElementById("passwordDialog"),
+      label: document.getElementById("passwordText"),
+      input: document.getElementById("password"),
+      submitButton: document.getElementById("passwordSubmit"),
+      cancelButton: document.getElementById("passwordCancel"),
+    },
+    documentProperties: {
+      dialog: document.getElementById("documentPropertiesDialog"),
+      closeButton: document.getElementById("documentPropertiesClose"),
+      fields: {
+        fileName: document.getElementById("fileNameField"),
+        fileSize: document.getElementById("fileSizeField"),
+        title: document.getElementById("titleField"),
+        author: document.getElementById("authorField"),
+        subject: document.getElementById("subjectField"),
+        keywords: document.getElementById("keywordsField"),
+        creationDate: document.getElementById("creationDateField"),
+        modificationDate: document.getElementById("modificationDateField"),
+        creator: document.getElementById("creatorField"),
+        producer: document.getElementById("producerField"),
+        version: document.getElementById("versionField"),
+        pageCount: document.getElementById("pageCountField"),
+        pageSize: document.getElementById("pageSizeField"),
+        linearized: document.getElementById("linearizedField"),
+      },
+    },
+    altTextDialog: {
+      dialog: document.getElementById("altTextDialog"),
+      optionDescription: document.getElementById("descriptionButton"),
+      optionDecorative: document.getElementById("decorativeButton"),
+      textarea: document.getElementById("descriptionTextarea"),
+      cancelButton: document.getElementById("altTextCancel"),
+      saveButton: document.getElementById("altTextSave"),
+    },
+    newAltTextDialog: {
+      dialog: document.getElementById("newAltTextDialog"),
+      title: document.getElementById("newAltTextTitle"),
+      descriptionContainer: document.getElementById(
+        "newAltTextDescriptionContainer"
+      ),
+      textarea: document.getElementById("newAltTextDescriptionTextarea"),
+      disclaimer: document.getElementById("newAltTextDisclaimer"),
+      learnMore: document.getElementById("newAltTextLearnMore"),
+      imagePreview: document.getElementById("newAltTextImagePreview"),
+      createAutomatically: document.getElementById(
+        "newAltTextCreateAutomatically"
+      ),
+      createAutomaticallyButton: document.getElementById(
+        "newAltTextCreateAutomaticallyButton"
+      ),
+      downloadModel: document.getElementById("newAltTextDownloadModel"),
+      downloadModelDescription: document.getElementById(
+        "newAltTextDownloadModelDescription"
+      ),
+      error: document.getElementById("newAltTextError"),
+      errorCloseButton: document.getElementById("newAltTextCloseButton"),
+      cancelButton: document.getElementById("newAltTextCancel"),
+      notNowButton: document.getElementById("newAltTextNotNow"),
+      saveButton: document.getElementById("newAltTextSave"),
+    },
+    altTextSettingsDialog: {
+      dialog: document.getElementById("altTextSettingsDialog"),
+      createModelButton: document.getElementById("createModelButton"),
+      aiModelSettings: document.getElementById("aiModelSettings"),
+      learnMore: document.getElementById("altTextSettingsLearnMore"),
+      deleteModelButton: document.getElementById("deleteModelButton"),
+      downloadModelButton: document.getElementById("downloadModelButton"),
+      showAltTextDialogButton: document.getElementById(
+        "showAltTextDialogButton"
+      ),
+      altTextSettingsCloseButton: document.getElementById(
+        "altTextSettingsCloseButton"
+      ),
+      closeButton: document.getElementById("altTextSettingsCloseButton"),
+    },
+    annotationEditorParams: {
+      editorFreeTextFontSize: document.getElementById("editorFreeTextFontSize"),
+      editorFreeTextColor: document.getElementById("editorFreeTextColor"),
+      editorInkColor: document.getElementById("editorInkColor"),
+      editorInkThickness: document.getElementById("editorInkThickness"),
+      editorInkOpacity: document.getElementById("editorInkOpacity"),
+      editorStampAddImage: document.getElementById("editorStampAddImage"),
+      editorFreeHighlightThickness: document.getElementById(
+        "editorFreeHighlightThickness"
+      ),
+      editorHighlightShowAll: document.getElementById("editorHighlightShowAll"),
+    },
+    printContainer: document.getElementById("printContainer"),
+  };
+}
+
+function webViewerLoad() {
+  const config = getViewerConfiguration();
+
+  if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("GENERIC")) {
+    // Give custom implementations of the default viewer a simpler way to
+    // set various `AppOptions`, by dispatching an event once all viewer
+    // files are loaded but *before* the viewer initialization has run.
+    const event = new CustomEvent("webviewerloaded", {
+      bubbles: true,
+      cancelable: true,
+      detail: {
+        source: window,
+      },
+    });
+    try {
+      // Attempt to dispatch the event at the embedding `document`,
+      // in order to support cases where the viewer is embedded in
+      // a *dynamically* created <iframe> element.
+      parent.document.dispatchEvent(event);
+    } catch (ex) {
+      // The viewer could be in e.g. a cross-origin <iframe> element,
+      // fallback to dispatching the event at the current `document`.
+      console.error(`webviewerloaded: ${ex}`);
+      document.dispatchEvent(event);
+    }
+  }
+  PDFViewerApplication.run(config);
+}
+
+// Block the "load" event until all pages are loaded, to ensure that printing
+// works in Firefox; see https://bugzilla.mozilla.org/show_bug.cgi?id=1618553
+document.blockUnblockOnload?.(true);
+
+if (
+  document.readyState === "interactive" ||
+  document.readyState === "complete"
+) {
+  webViewerLoad();
+} else {
+  document.addEventListener("DOMContentLoaded", webViewerLoad, true);
+}
+
+export {
+  AppConstants as PDFViewerApplicationConstants,
+  AppOptions as PDFViewerApplicationOptions,
+  PDFViewerApplication,
+};