ngx-extended-pdf-viewer/bleeding-edge/viewer-3.5.376.js

Embedding PDF files in your Angular application. Highly configurable viewer including the toolbar, sidebar, and all the features you're used to.

window.ngxZone.runOutsideAngular(() => {
/**
 * @licstart The following is the entire license notice for the
 * JavaScript code in this page
 *
 * Copyright 2023 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.
 *
 * @licend The above is the entire license notice for the
 * JavaScript code in this page
 */

/******/ (() => { // webpackBootstrap
/******/ 	"use strict";
/******/ 	var __webpack_modules__ = ([
/* 0 */,
/* 1 */
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {



Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.GenericCom = void 0;
var _app = __webpack_require__(2);
var _preferences = __webpack_require__(47);
var _download_manager = __webpack_require__(48);
var _genericl10n = __webpack_require__(49);
var _generic_scripting = __webpack_require__(51);
;
const GenericCom = {};
exports.GenericCom = GenericCom;
class GenericPreferences extends _preferences.BasePreferences {
  async _writeToStorage(prefObj) {
    try {
      localStorage.setItem("pdfjs.preferences", JSON.stringify(prefObj));
    } catch (safariSecurityException) {}
  }
  async _readFromStorage(prefObj) {
    try {
      return JSON.parse(localStorage.getItem("pdfjs.preferences"));
    } catch (safariSecurityException) {
      return {};
    }
  }
}
class GenericExternalServices extends _app.DefaultExternalServices {
  static createDownloadManager() {
    return new _download_manager.DownloadManager();
  }
  static createPreferences() {
    return new GenericPreferences();
  }
  static createL10n({
    locale = "en-US"
  }) {
    return new _genericl10n.GenericL10n(locale);
  }
  static createScripting({
    sandboxBundleSrc
  }) {
    return new _generic_scripting.GenericScripting(sandboxBundleSrc);
  }
}
_app.PDFViewerApplication.externalServices = GenericExternalServices;

/***/ }),
/* 2 */
/***/ ((__unused_webpack_module, exports, __webpack_require__) => {



Object.defineProperty(exports, "__esModule", ({
  value: true
}));
exports.PDFViewerApplication = exports.PDFPrintServiceFactory = exports.DefaultExternalServices = void 0;
var _ui_utils = __webpack_require__(3);
var _pdfjsLib = __webpack_require__(4);
var _app_options = __webpack_require__(5);
var _event_utils = __webpack_require__(6);
var _pdf_link_service = __webpack_require__(7);
var _webAnnotation_editor_params = __webpack_require__(8);
var _overlay_manager = __webpack_require__(9);
var _password_prompt = __webpack_require__(10);
var _webPdf_attachment_viewer = __webpack_require__(11);
var _webPdf_cursor_tools = __webpack_require__(13);
var _webPdf_document_properties = __webpack_require__(15);
var _webPdf_find_bar = __webpack_require__(16);
var _pdf_find_controller = __webpack_require__(17);
var _pdf_history = __webpack_require__(21);
var _webPdf_layer_viewer = __webpack_require__(22);
var _webPdf_outline_viewer = __webpack_require__(23);
var _webPdf_presentation_mode = __webpack_require__(24);
var _pdf_rendering_queue = __webpack_require__(25);
var _pdf_scripting_manager = __webpack_require__(26);
var _webPdf_sidebar = __webpack_require__(27);
var _webPdf_sidebar_resizer = __webpack_require__(28);
var _webPdf_thumbnail_viewer = __webpack_require__(29);
var _pdf_viewer = __webpack_require__(31);
var _webSecondary_toolbar = __webpack_require__(44);
var _webToolbar = __webpack_require__(45);
var _view_history = __webpack_require__(46);
const FORCE_PAGES_LOADED_TIMEOUT = 10;
const WHEEL_ZOOM_DISABLED_TIMEOUT = 1000;
const ViewOnLoad = {
  UNKNOWN: -1,
  PREVIOUS: 0,
  INITIAL: 1
};
const ViewerCssTheme = {
  AUTOMATIC: 0,
  LIGHT: 1,
  DARK: 2
};
class DefaultExternalServices {
  constructor() {
    throw new Error("Cannot initialize DefaultExternalServices.");
  }
  static updateFindControlState(data) {}
  static updateFindMatchesCount(data) {}
  static initPassiveLoading(callbacks) {}
  static reportTelemetry(data) {}
  static createDownloadManager() {
    throw new Error("Not implemented: createDownloadManager");
  }
  static createPreferences() {
    throw new Error("Not implemented: createPreferences");
  }
  static createL10n(options) {
    throw new Error("Not implemented: createL10n");
  }
  static createScripting(options) {
    throw new Error("Not implemented: createScripting");
  }
  static get supportsPinchToZoom() {
    return (0, _pdfjsLib.shadow)(this, "supportsPinchToZoom", true);
  }
  static get supportsIntegratedFind() {
    return (0, _pdfjsLib.shadow)(this, "supportsIntegratedFind", false);
  }
  static get supportsDocumentFonts() {
    return (0, _pdfjsLib.shadow)(this, "supportsDocumentFonts", true);
  }
  static get supportedMouseWheelZoomModifierKeys() {
    return (0, _pdfjsLib.shadow)(this, "supportedMouseWheelZoomModifierKeys", {
      ctrlKey: true,
      metaKey: true
    });
  }
  static get isInAutomation() {
    return (0, _pdfjsLib.shadow)(this, "isInAutomation", false);
  }
  static updateEditorStates(data) {
    throw new Error("Not implemented: updateEditorStates");
  }
}
exports.DefaultExternalServices = DefaultExternalServices;
const PDFViewerApplication = {
  initialBookmark: document.location.hash.substring(1),
  _initializedCapability: (0, _pdfjsLib.createPromiseCapability)(),
  appConfig: null,
  pdfDocument: null,
  pdfLoadingTask: null,
  printService: null,
  pdfViewer: null,
  pdfThumbnailViewer: null,
  pdfRenderingQueue: null,
  pdfPresentationMode: null,
  pdfDocumentProperties: null,
  pdfLinkService: null,
  pdfHistory: null,
  pdfSidebar: null,
  pdfSidebarResizer: null,
  pdfOutlineViewer: null,
  pdfAttachmentViewer: null,
  pdfLayerViewer: null,
  pdfCursorTools: null,
  pdfScriptingManager: null,
  store: null,
  downloadManager: null,
  overlayManager: null,
  preferences: null,
  toolbar: null,
  secondaryToolbar: null,
  eventBus: null,
  l10n: null,
  annotationEditorParams: null,
  isInitialViewSet: false,
  downloadComplete: false,
  isViewerEmbedded: window.parent !== window,
  url: "",
  baseUrl: "",
  _downloadUrl: "",
  externalServices: DefaultExternalServices,
  _boundEvents: Object.create(null),
  documentInfo: null,
  metadata: null,
  _contentDispositionFilename: null,
  _contentLength: null,
  _saveInProgress: false,
  _wheelUnusedTicks: 0,
  _wheelUnusedFactor: 1,
  _touchUnusedTicks: 0,
  _touchUnusedFactor: 1,
  _PDFBug: null,
  _hasAnnotationEditors: false,
  _title: document.title,
  _printAnnotationStoragePromise: null,
  _touchInfo: null,
  _isCtrlKeyDown: false,
  async initialize(appConfig) {
    this.preferences = this.externalServices.createPreferences();
    this.appConfig = appConfig;
    await this._initializeOptions();
    this._forceCssTheme();
    await this._initializeL10n();
    if (this.isViewerEmbedded && _app_options.AppOptions.get("externalLinkTarget") === _pdf_link_service.LinkTarget.NONE) {
      _app_options.AppOptions.set("externalLinkTarget", _pdf_link_service.LinkTarget.TOP);
    }
    await this._initializeViewerComponents();
    this.bindEvents();
    this.bindWindowEvents();
    const appContainer = appConfig.appContainer || document.documentElement;
    this.l10n.translate(appContainer).then(() => {
      this.eventBus.dispatch("localized", {
        source: this
      });
    });
    this._initializedCapability.resolve();
    this.initializeLoadingBar();
  },
  async _initializeOptions() {
    if (_app_options.AppOptions.get("disablePreferences")) {
      if (_app_options.AppOptions.get("pdfBugEnabled")) {
        await this._parseHashParams();
      }
      return;
    }
    if (_app_options.AppOptions._hasUserOptions()) {
      Window['ngxConsole'].warn("_initializeOptions: The Preferences may override manually set AppOptions; " + 'please use the "disablePreferences"-option in order to prevent that.');
    }
    try {
      _app_options.AppOptions.setAll(await this.preferences.getAll());
    } catch (reason) {
      Window['ngxConsole'].error(`_initializeOptions: "${reason?.message}".`);
    }
    if (_app_options.AppOptions.get("pdfBugEnabled")) {
      await this._parseHashParams();
    }
  },
  async _parseHashParams() {
    const hash = document.location.hash.substring(1);
    if (!hash) {
      return;
    }
    const {
        mainContainer,
        viewerContainer
      } = this.appConfig,
      params = (0, _ui_utils.parseQueryString)(hash);
    if (params.get("disableworker") === "true") {
      try {
        await loadFakeWorker();
      } catch (ex) {
        console.error(`_parseHashParams: "${ex.message}".`);
      }
    }
    if (params.has("disablerange")) {
      _app_options.AppOptions.set("disableRange", params.get("disablerange") === "true");
    }
    if (params.has("disablestream")) {
      _app_options.AppOptions.set("disableStream", params.get("disablestream") === "true");
    }
    if (params.has("disableautofetch")) {
      _app_options.AppOptions.set("disableAutoFetch", params.get("disableautofetch") === "true");
    }
    if (params.has("disablefontface")) {
      _app_options.AppOptions.set("disableFontFace", params.get("disablefontface") === "true");
    }
    if (params.has("disablehistory")) {
      _app_options.AppOptions.set("disableHistory", params.get("disablehistory") === "true");
    }
    if (params.has("verbosity")) {
      _app_options.AppOptions.set("verbosity", params.get("verbosity") | 0);
    }
    if (params.has("textlayer")) {
      switch (params.get("textlayer")) {
        case "off":
          _app_options.AppOptions.set("textLayerMode", _ui_utils.TextLayerMode.DISABLE);
          break;
        case "visible":
        case "shadow":
        case "hover":
          viewerContainer.classList.add(`textLayer-${params.get("textlayer")}`);
          try {
            await loadPDFBug(this);
            this._PDFBug.loadCSS();
          } catch (ex) {
            console.error(`_parseHashParams: "${ex.message}".`);
          }
          break;
      }
    }
    if (params.has("pdfbug")) {
      _app_options.AppOptions.set("pdfBug", true);
      _app_options.AppOptions.set("fontExtraProperties", true);
      const enabled = params.get("pdfbug").split(",");
      try {
        await loadPDFBug(this);
        this._PDFBug.init({
          OPS: _pdfjsLib.OPS
        }, mainContainer, enabled);
      } catch (ex) {
        console.error(`_parseHashParams: "${ex.message}".`);
      }
    }
    if (params.has("locale")) {
      _app_options.AppOptions.set("locale", params.get("locale"));
    }
  },
  async _initializeL10n() {
    this.l10n = this.externalServices.createL10n({
      locale: _app_options.AppOptions.get("locale")
    });
    const dir = await this.l10n.getDirection();
    document.getElementsByTagName("html")[0].dir = dir;
  },
  _forceCssTheme() {
    const cssTheme = _app_options.AppOptions.get("viewerCssTheme");
    if (cssTheme === ViewerCssTheme.AUTOMATIC || !Object.values(ViewerCssTheme).includes(cssTheme)) {
      return;
    }
    try {
      const styleSheet = document.styleSheets[0];
      const cssRules = styleSheet?.cssRules || [];
      for (let i = 0, ii = cssRules.length; i < ii; i++) {
        const rule = cssRules[i];
        if (rule instanceof CSSMediaRule && rule.media?.[0] === "(prefers-color-scheme: dark)") {
          if (cssTheme === ViewerCssTheme.LIGHT) {
            styleSheet.deleteRule(i);
            return;
          }
          const darkRules = /^@media \(prefers-color-scheme: dark\) {\n\s*([\w\s-.,:;/\\{}()]+)\n}$/.exec(rule.cssText);
          if (darkRules?.[1]) {
            styleSheet.deleteRule(i);
            styleSheet.insertRule(darkRules[1], i);
          }
          return;
        }
      }
    } catch (reason) {
      Window['ngxConsole'].error(`_forceCssTheme: "${reason?.message}".`);
    }
  },
  async _initializeViewerComponents() {
    const {
      appConfig,
      externalServices
    } = this;
    const eventBus = externalServices.isInAutomation ? new _event_utils.AutomationEventBus() : new _event_utils.EventBus();
    this.eventBus = eventBus;
    this.overlayManager = new _overlay_manager.OverlayManager();
    const pdfRenderingQueue = new _pdf_rendering_queue.PDFRenderingQueue();
    pdfRenderingQueue.onIdle = this._cleanup.bind(this);
    this.pdfRenderingQueue = pdfRenderingQueue;
    const pdfLinkService = new _pdf_link_service.PDFLinkService({
      eventBus,
      externalLinkTarget: _app_options.AppOptions.get("externalLinkTarget"),
      externalLinkRel: _app_options.AppOptions.get("externalLinkRel"),
      ignoreDestinationZoom: _app_options.AppOptions.get("ignoreDestinationZoom")
    });
    this.pdfLinkService = pdfLinkService;
    const downloadManager = externalServices.createDownloadManager();
    this.downloadManager = downloadManager;
    const findController = new _pdf_find_controller.PDFFindController({
      linkService: pdfLinkService,
      eventBus,
      pageViewMode: _app_options.AppOptions.get("pageViewMode"),
      updateMatchesCountOnProgress: true
    });
    this.findController = findController;
    const pdfScriptingManager = new _pdf_scripting_manager.PDFScriptingManager({
      eventBus,
      sandboxBundleSrc: _app_options.AppOptions.get("sandboxBundleSrc"),
      scriptingFactory: externalServices,
      docPropertiesLookup: this._scriptingDocProperties.bind(this)
    });
    this.pdfScriptingManager = pdfScriptingManager;
    const container = appConfig.mainContainer,
      viewer = appConfig.viewerContainer;
    const annotationEditorMode = _app_options.AppOptions.get("annotationEditorMode");
    const pageColors = _app_options.AppOptions.get("forcePageColors") || window.matchMedia("(forced-colors: active)").matches ? {
      background: _app_options.AppOptions.get("pageColorsBackground"),
      foreground: _app_options.AppOptions.get("pageColorsForeground")
    } : null;
    this.pdfViewer = new _pdf_viewer.PDFViewer({
      container,
      viewer,
      eventBus,
      renderingQueue: pdfRenderingQueue,
      linkService: pdfLinkService,
      downloadManager,
      findController,
      scriptingManager: _app_options.AppOptions.get("enableScripting") && pdfScriptingManager,
      renderer: _app_options.AppOptions.get("renderer"),
      l10n: this.l10n,
      textLayerMode: _app_options.AppOptions.get("textLayerMode"),
      annotationMode: _app_options.AppOptions.get("annotationMode"),
      annotationEditorMode,
      imageResourcesPath: _app_options.AppOptions.get("imageResourcesPath"),
      removePageBorders: _app_options.AppOptions.get("removePageBorders"),
      enablePrintAutoRotate: _app_options.AppOptions.get("enablePrintAutoRotate"),
      useOnlyCssZoom: _app_options.AppOptions.get("useOnlyCssZoom"),
      isOffscreenCanvasSupported: _app_options.AppOptions.get("isOffscreenCanvasSupported"),
      maxCanvasPixels: _app_options.AppOptions.get("maxCanvasPixels"),
      pageViewMode: _app_options.AppOptions.get("pageViewMode"),
      enablePermissions: _app_options.AppOptions.get("enablePermissions"),
      pageColors
    });
    pdfRenderingQueue.setViewer(this.pdfViewer);
    pdfLinkService.setViewer(this.pdfViewer);
    pdfScriptingManager.setViewer(this.pdfViewer);
    if (appConfig.sidebar?.thumbnailView) {
      this.pdfThumbnailViewer = new _webPdf_thumbnail_viewer.PDFThumbnailViewer({
        container: appConfig.sidebar.thumbnailView,
        renderingQueue: pdfRenderingQueue,
        linkService: pdfLinkService,
        l10n: this.l10n,
        pageColors
      });
      pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer);
    }
    if (!this.isViewerEmbedded && !_app_options.AppOptions.get("disableHistory")) {
      this.pdfHistory = new _pdf_history.PDFHistory({
        linkService: pdfLinkService,
        eventBus
      });
      pdfLinkService.setHistory(this.pdfHistory);
    }
    if (!this.supportsIntegratedFind && appConfig.findBar) {
      this.findBar = new _webPdf_find_bar.PDFFindBar(appConfig.findBar, eventBus, this.l10n);
    }
    if (appConfig.annotationEditorParams) {
      if (annotationEditorMode !== _pdfjsLib.AnnotationEditorType.DISABLE) {
        this.annotationEditorParams = new _webAnnotation_editor_params.AnnotationEditorParams(appConfig.annotationEditorParams, eventBus);
      } else {
        for (const id of ["editorModeButtons", "editorModeSeparator"]) {
          document.getElementById(id)?.classList.add("hidden");
        }
      }
    }
    if (appConfig.documentProperties) {
      this.pdfDocumentProperties = new _webPdf_document_properties.PDFDocumentProperties(appConfig.documentProperties, this.overlayManager, eventBus, this.l10n, () => {
        return this._docFilename;
      });
    }
    if (appConfig.secondaryToolbar?.cursorHandToolButton) {
      this.pdfCursorTools = new _webPdf_cursor_tools.PDFCursorTools({
        container,
        eventBus,
        cursorToolOnLoad: _app_options.AppOptions.get("cursorToolOnLoad")
      });
    }
    if (appConfig.toolbar) {
      this.toolbar = new _webToolbar.Toolbar(appConfig.toolbar, eventBus, this.l10n);
    }
    if (appConfig.secondaryToolbar) {
      this.secondaryToolbar = new _webSecondary_toolbar.SecondaryToolbar(appConfig.secondaryToolbar, eventBus, this.externalServices);
    }
    if (this.supportsFullscreen && appConfig.secondaryToolbar?.presentationModeButton) {
      this.pdfPresentationMode = new _webPdf_presentation_mode.PDFPresentationMode({
        container,
        pdfViewer: this.pdfViewer,
        eventBus
      });
    }
    let prompt = _app_options.AppOptions.get("passwordPrompt");
    if (!prompt) {
      if (appConfig.passwordOverlay) {
        prompt = new _password_prompt.PasswordPrompt(appConfig.passwordOverlay, this.overlayManager, this.l10n, this.isViewerEmbedded);
      }
    }
    this.passwordPrompt = prompt;
    if (appConfig.sidebar?.outlineView) {
      this.pdfOutlineViewer = new _webPdf_outline_viewer.PDFOutlineViewer({
        container: appConfig.sidebar.outlineView,
        eventBus,
        linkService: pdfLinkService,
        downloadManager
      });
    }
    if (appConfig.sidebar?.attachmentsView) {
      this.pdfAttachmentViewer = new _webPdf_attachment_viewer.PDFAttachmentViewer({
        container: appConfig.sidebar.attachmentsView,
        eventBus,
        downloadManager
      });
    }
    if (appConfig.sidebar?.layersView) {
      this.pdfLayerViewer = new _webPdf_layer_viewer.PDFLayerViewer({
        container: appConfig.sidebar.layersView,
        eventBus,
        l10n: this.l10n
      });
    }
    if (appConfig.sidebar) {
      this.pdfSidebar = new _webPdf_sidebar.PDFSidebar({
        elements: appConfig.sidebar,
        pdfViewer: this.pdfViewer,
        pdfThumbnailViewer: this.pdfThumbnailViewer,
        eventBus,
        l10n: this.l10n
      });
      this.pdfSidebar.onToggled = this.forceRendering.bind(this);
      this.pdfSidebarResizer = new _webPdf_sidebar_resizer.PDFSidebarResizer(appConfig.sidebarResizer, eventBus, this.l10n);
    }
  },
  run(config) {
    this.initialize(config).then(webViewerInitialized);
  },
  get initialized() {
    return this._initializedCapability.settled;
  },
  get initializedPromise() {
    return this._initializedCapability.promise;
  },
  zoomIn(steps, scaleFactor) {
    if (this.pdfViewer.isInPresentationMode) {
      return;
    }
    this.pdfViewer.increaseScale({
      drawingDelay: _app_options.AppOptions.get("defaultZoomDelay"),
      steps,
      scaleFactor
    });
  },
  zoomOut(steps, scaleFactor) {
    if (this.pdfViewer.isInPresentationMode) {
      return;
    }
    this.pdfViewer.decreaseScale({
      drawingDelay: _app_options.AppOptions.get("defaultZoomDelay"),
      steps,
      scaleFactor
    });
  },
  zoomReset() {
    if (this.pdfViewer.isInPresentationMode) {
      return;
    }
    this.pdfViewer.currentScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
  },
  get pagesCount() {
    return this.pdfDocument ? this.pdfDocument.numPages : 0;
  },
  get page() {
    return this.pdfViewer.currentPageNumber;
  },
  set page(val) {
    this.pdfViewer.currentPageNumber = val;
  },
  get supportsPrinting() {
    return PDFPrintServiceFactory.instance.supportsPrinting;
  },
  get supportsFullscreen() {
    return (0, _pdfjsLib.shadow)(this, "supportsFullscreen", document.fullscreenEnabled);
  },
  get supportsPinchToZoom() {
    return this.externalServices.supportsPinchToZoom;
  },
  get supportsIntegratedFind() {
    return this.externalServices.supportsIntegratedFind;
  },
  get supportsDocumentFonts() {
    return this.externalServices.supportsDocumentFonts;
  },
  initializeLoadingBar() {
    const barElement = document.getElementById("loadingBar");
    const bar = barElement ? new _ui_utils.ProgressBar(barElement) : null;
    bar?.hide();
    return (0, _pdfjsLib.shadow)(this, "loadingBar", bar);
  },
  get supportedMouseWheelZoomModifierKeys() {
    return this.externalServices.supportedMouseWheelZoomModifierKeys;
  },
  initPassiveLoading() {
    throw new Error("Not implemented: initPassiveLoading");
  },
  setTitleUsingUrl(url = "", downloadUrl = null) {},
  setTitle(title = this._title) {
    this._title = title;
    if (this.isViewerEmbedded) {
      return;
    }
    const editorIndicator = this._hasAnnotationEditors && !this.pdfRenderingQueue.printing;
    document.title = `${editorIndicator ? "* " : ""}${title}`;
  },
  get _docFilename() {
    return this._contentDispositionFilename || (0, _pdfjsLib.getPdfFilenameFromUrl)(this.url);
  },
  _hideViewBookmark() {
    const {
      secondaryToolbar
    } = this.appConfig;
    secondaryToolbar?.viewBookmarkButton.classList.add("hidden");
    if (secondaryToolbar?.presentationModeButton.classList.contains("hidden")) {
      document.getElementById("viewBookmarkSeparator")?.classList.add("hidden");
    }
  },
  async close() {
    this._unblockDocumentLoadEvent();
    this._hideViewBookmark();
    if (!this.pdfLoadingTask) {
      return;
    }
    if (this.pdfDocument?.annotationStorage.size > 0 && this._annotationStorageModified) {
      try {
        await this.save();
      } catch (reason) {}
    }
    const promises = [];
    promises.push(this.pdfLoadingTask.destroy());
    this.pdfLoadingTask = null;
    if (this.pdfDocument) {
      this.pdfDocument = null;
      this.pdfThumbnailViewer?.setDocument(null);
      this.pdfViewer.setDocument(null);
      this.pdfLinkService.setDocument(null);
      this.pdfDocumentProperties?.setDocument(null);
    }
    this.pdfLinkService.externalLinkEnabled = true;
    this.store = null;
    this.isInitialViewSet = false;
    this.downloadComplete = false;
    this.url = "";
    this.baseUrl = "";
    this._downloadUrl = "";
    this.documentInfo = null;
    this.metadata = null;
    this._contentDispositionFilename = null;
    this._contentLength = null;
    this._saveInProgress = false;
    this._hasAnnotationEditors = false;
    promises.push(this.pdfScriptingManager.destroyPromise);
    this.setTitle();
    this.pdfSidebar?.reset();
    this.pdfOutlineViewer?.reset();
    this.pdfAttachmentViewer?.reset();
    this.pdfLayerViewer?.reset();
    this.pdfHistory?.reset();
    this.findBar?.reset();
    this.toolbar?.reset();
    this.secondaryToolbar?.reset();
    this._PDFBug?.cleanup();
    await Promise.all(promises);
  },
  async open(args) {
    window.adjacentPagesLoader = undefined;
    window.ngxZone.runOutsideAngular(async () => {
      let deprecatedArgs = false;
      if (typeof args === "string") {
        args = {
          url: args
        };
        deprecatedArgs = true;
      } else if (args?.byteLength) {
        args = {
          data: args
        };
        deprecatedArgs = true;
      }
      if (deprecatedArgs) {
        console.error("The `PDFViewerApplication.open` signature was updated, please use an object instead.");
      }
      if (this.pdfLoadingTask) {
        await this.close();
      }
      const workerParams = _app_options.AppOptions.getAll(_app_options.OptionKind.WORKER);
      Object.assign(_pdfjsLib.GlobalWorkerOptions, workerParams);
      if (args.url) {
        this.setTitleUsingUrl(args.originalUrl || args.url, args.url);
      }
      const apiParams = _app_options.AppOptions.getAll(_app_options.OptionKind.API);
      const params = {
        ...apiParams,
        ...args
      };
      const loadingTask = (0, _pdfjsLib.getDocument)(params);
      this.pdfLoadingTask = loadingTask;
      loadingTask.onPassword = (updateCallback, reason) => {
        if (this.isViewerEmbedded) {
          this._unblockDocumentLoadEvent();
        }
        this.pdfLinkService.externalLinkEnabled = false;
        this.passwordPrompt.setUpdateCallback(updateCallback, reason);
        this.passwordPrompt.open();
      };
      loadingTask.onProgress = ({
        loaded,
        total
      }) => {
        this.progress(loaded / total);
        this.eventBus?.dispatch("progress", {
          source: this,
          type: "load",
          total,
          loaded,
          percent: 100 * loaded / total
        });
      };
      return loadingTask.promise.then(pdfDocument => {
        this.load(pdfDocument);
      }, reason => {
        if (loadingTask !== this.pdfLoadingTask) {
          return undefined;
        }
        let key = "loading_error";
        if (reason instanceof _pdfjsLib.InvalidPDFException) {
          key = "invalid_file_error";
        } else if (reason instanceof _pdfjsLib.MissingPDFException) {
          key = "missing_file_error";
        } else if (reason instanceof _pdfjsLib.UnexpectedResponseException) {
          key = "unexpected_response_error";
        }
        if (PDFViewerApplication.onError) {
          PDFViewerApplication.onError(reason);
        }
        return this.l10n.get(key).then(msg => {
          this._documentError(msg, {
            message: reason?.message
          });
          throw reason;
        });
      });
    });
  },
  _ensureDownloadComplete() {
    if (this.pdfDocument && this.downloadComplete) {
      return;
    }
    throw new Error("PDF document not downloaded.");
  },
  async download() {
    const url = this._downloadUrl,
      filename = this._docFilename;
    try {
      this._ensureDownloadComplete();
      const data = await this.pdfDocument.getData();
      const blob = new Blob([data], {
        type: "application/pdf"
      });
      await this.downloadManager.download(blob, url, filename);
    } catch (reason) {
      await this.downloadManager.downloadUrl(url, filename);
    }
  },
  async save() {
    if (this._saveInProgress) {
      return;
    }
    this._saveInProgress = true;
    await this.pdfScriptingManager.dispatchWillSave();
    const url = this._downloadUrl,
      filename = this._docFilename;
    try {
      this._ensureDownloadComplete();
      const data = await this.pdfDocument.saveDocument();
      const blob = new Blob([data], {
        type: "application/pdf"
      });
      await this.downloadManager.download(blob, url, filename);
    } catch (reason) {
      Window["ngxConsole"].error(`Error when saving the document: ${reason.message}`);
      await this.download();
    } finally {
      await this.pdfScriptingManager.dispatchDidSave();
      this._saveInProgress = false;
    }
    if (this._hasAnnotationEditors) {
      this.externalServices.reportTelemetry({
        type: "editing",
        data: {
          type: "save"
        }
      });
    }
  },
  downloadOrSave() {
    if (this.pdfDocument?.annotationStorage.size > 0) {
      this.save();
    } else {
      this.download();
    }
  },
  _documentError(message, moreInfo = null) {
    this._unblockDocumentLoadEvent();
    this._otherError(message, moreInfo);
    this.eventBus.dispatch("documenterror", {
      source: this,
      message,
      reason: moreInfo?.message ?? null
    });
  },
  _otherError(message, moreInfo = null) {
    const moreInfoText = [`PDF.js v${_pdfjsLib.version || "?"} (build: ${_pdfjsLib.build || "?"})`];
    if (moreInfo) {
      moreInfoText.push(`Message: ${moreInfo.message}`);
      if (moreInfo.stack) {
        moreInfoText.push(`Stack: ${moreInfo.stack}`);
      } else {
        if (moreInfo.filename) {
          moreInfoText.push(`File: ${moreInfo.filename}`);
        }
        if (moreInfo.lineNumber) {
          moreInfoText.push(`Line: ${moreInfo.lineNumber}`);
        }
      }
    }
    console.error(`${message}\n\n${moreInfoText.join("\n")}`);
  },
  progress(level) {
    if (!this.loadingBar || this.downloadComplete) {
      return;
    }
    const percent = Math.round(level * 100);
    if (percent <= this.loadingBar.percent) {
      return;
    }
    this.loadingBar.percent = percent;
    if (this.pdfDocument?.loadingParams.disableAutoFetch ?? _app_options.AppOptions.get("disableAutoFetch")) {
      this.loadingBar.setDisableAutoFetch();
    }
  },
  load(pdfDocument) {
    this.pdfDocument = pdfDocument;
    pdfDocument.getDownloadInfo().then(({
      length
    }) => {
      this._contentLength = length;
      this.downloadComplete = true;
      this.loadingBar?.hide();
      firstPagePromise.then(() => {
        this.eventBus?.dispatch("documentloaded", {
          source: this
        });
      });
    });
    const pageLayoutPromise = pdfDocument.getPageLayout().catch(function () {});
    const pageModePromise = pdfDocument.getPageMode().catch(function () {});
    const openActionPromise = pdfDocument.getOpenAction().catch(function () {});
    this.toolbar?.setPagesCount(pdfDocument.numPages, false);
    this.secondaryToolbar?.setPagesCount(pdfDocument.numPages);
    let baseDocumentUrl;
    baseDocumentUrl = null;
    if (baseDocumentUrl && (0, _pdfjsLib.isDataScheme)(baseDocumentUrl)) {
      baseDocumentUrl = null;
    }
    this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
    this.pdfDocumentProperties?.setDocument(pdfDocument);
    const pdfViewer = this.pdfViewer;
    pdfViewer.setDocument(pdfDocument);
    const {
      firstPagePromise,
      onePageRendered,
      pagesPromise
    } = pdfViewer;
    this.pdfThumbnailViewer?.setDocument(pdfDocument);
    const storedPromise = (this.store = new _view_history.ViewHistory(pdfDocument.fingerprints[0])).getMultiple({
      page: null,
      zoom: _ui_utils.DEFAULT_SCALE_VALUE,
      scrollLeft: "0",
      scrollTop: "0",
      rotation: null,
      sidebarView: _ui_utils.SidebarView.UNKNOWN,
      scrollMode: _ui_utils.ScrollMode.UNKNOWN,
      spreadMode: _ui_utils.SpreadMode.UNKNOWN
    }).catch(() => {
      return Object.create(null);
    });
    firstPagePromise.then(pdfPage => {
      this.loadingBar?.setWidth(this.appConfig.viewerContainer);
      this._initializeAnnotationStorageCallbacks(pdfDocument);
      Promise.all([_ui_utils.animationStarted, storedPromise, pageLayoutPromise, pageModePromise, openActionPromise]).then(async ([timeStamp, stored, pageLayout, pageMode, openAction]) => {
        const viewOnLoad = _app_options.AppOptions.get("viewOnLoad");
        this._initializePdfHistory({
          fingerprint: pdfDocument.fingerprints[0],
          viewOnLoad,
          initialDest: openAction?.dest
        });
        const initialBookmark = this.initialBookmark;
        const zoom = _app_options.AppOptions.get("defaultZoomValue");
        let hash = zoom ? `zoom=${zoom}` : null;
        let rotation = null;
        let sidebarView = _app_options.AppOptions.get("sidebarViewOnLoad");
        let scrollMode = _app_options.AppOptions.get("scrollModeOnLoad");
        let spreadMode = _app_options.AppOptions.get("spreadModeOnLoad");
        if (stored.page && viewOnLoad !== ViewOnLoad.INITIAL) {
          hash = `page=${stored.page}&zoom=${zoom || stored.zoom},` + `${stored.scrollLeft},${stored.scrollTop}`;
          rotation = parseInt(stored.rotation, 10);
          if (sidebarView === _ui_utils.SidebarView.UNKNOWN) {
            sidebarView = stored.sidebarView | 0;
          }
          if (scrollMode === _ui_utils.ScrollMode.UNKNOWN) {
            scrollMode = stored.scrollMode | 0;
          }
          if (spreadMode === _ui_utils.SpreadMode.UNKNOWN) {
            spreadMode = stored.spreadMode | 0;
          }
        }
        if (pageMode && sidebarView === _ui_utils.SidebarView.UNKNOWN) {
          sidebarView = (0, _ui_utils.apiPageModeToSidebarView)(pageMode);
        }
        if (pageLayout && scrollMode === _ui_utils.ScrollMode.UNKNOWN && spreadMode === _ui_utils.SpreadMode.UNKNOWN) {
          const modes = (0, _ui_utils.apiPageLayoutToViewerModes)(pageLayout);
          spreadMode = modes.spreadMode;
        }
        this.setInitialView(hash, {
          rotation,
          sidebarView,
          scrollMode,
          spreadMode
        });
        this.eventBus.dispatch("documentinit", {
          source: this
        });
        if (!this.isViewerEmbedded) {
          pdfViewer.focus();
        }
        await Promise.race([pagesPromise, new Promise(resolve => {
          setTimeout(resolve, FORCE_PAGES_LOADED_TIMEOUT);
        })]);
        if (!initialBookmark && !hash) {
          return;
        }
        if (pdfViewer.hasEqualPageSizes) {
          return;
        }
        this.initialBookmark = initialBookmark;
        pdfViewer.currentScaleValue = pdfViewer.currentScaleValue;
        this.setInitialView(hash);
      }).catch(() => {
        this.setInitialView();
      }).then(function () {
        pdfViewer.update();
      });
    });
    pagesPromise.then(() => {
      this._unblockDocumentLoadEvent();
      this._initializeAutoPrint(pdfDocument, openActionPromise);
    }, reason => {
      if (PDFViewerApplication.onError) {
        PDFViewerApplication.onError(reason);
      }
      this.l10n.get("loading_error").then(msg => {
        this._documentError(msg, {
          message: reason?.message
        });
      });
    });
    onePageRendered.then(data => {
      this.externalServices.reportTelemetry({
        type: "pageInfo",
        timestamp: data.timestamp
      });
      if (this.pdfOutlineViewer) {
        pdfDocument.getOutline().then(outline => {
          if (pdfDocument !== this.pdfDocument) {
            return;
          }
          this.pdfOutlineViewer.render({
            outline,
            pdfDocument
          });
        });
      }
      if (this.pdfAttachmentViewer) {
        pdfDocument.getAttachments().then(attachments => {
          if (pdfDocument !== this.pdfDocument) {
            return;
          }
          this.pdfAttachmentViewer.render({
            attachments
          });
        });
      }
      if (this.pdfLayerViewer) {
        pdfViewer.optionalContentConfigPromise.then(optionalContentConfig => {
          if (pdfDocument !== this.pdfDocument) {
            return;
          }
          this.pdfLayerViewer.render({
            optionalContentConfig,
            pdfDocument
          });
        });
      }
    });
    this._initializePageLabels(pdfDocument);
    this._initializeMetadata(pdfDocument);
  },
  async _scriptingDocProperties(pdfDocument) {
    if (!this.documentInfo) {
      await new Promise(resolve => {
        this.eventBus._on("metadataloaded", resolve, {
          once: true
        });
      });
      if (pdfDocument !== this.pdfDocument) {
        return null;
      }
    }
    if (!this._contentLength) {
      await new Promise(resolve => {
        this.eventBus._on("documentloaded", resolve, {
          once: true
        });
      });
      if (pdfDocument !== this.pdfDocument) {
        return null;
      }
    }
    return {
      ...this.documentInfo,
      baseURL: this.baseUrl,
      filesize: this._contentLength,
      filename: this._docFilename,
      metadata: this.metadata?.getRaw(),
      authors: this.metadata?.get("dc:creator"),
      numPages: this.pagesCount,
      URL: this.url
    };
  },
  async _initializeAutoPrint(pdfDocument, openActionPromise) {
    const [openAction, javaScript] = await Promise.all([openActionPromise, !this.pdfViewer.enableScripting ? pdfDocument.getJavaScript() : null]);
    if (pdfDocument !== this.pdfDocument) {
      return;
    }
    let triggerAutoPrint = false;
    if (openAction?.action === "Print") {
      triggerAutoPrint = true;
    }
    if (javaScript) {
      javaScript.some(js => {
        if (!js) {
          return false;
        }
        Window['ngxConsole'].warn("Warning: JavaScript support is not enabled");
        return true;
      });
      if (!triggerAutoPrint) {
        for (const js of javaScript) {
          if (js && _ui_utils.AutoPrintRegExp.test(js)) {
            triggerAutoPrint = true;
            break;
          }
        }
      }
    }
    if (triggerAutoPrint) {
      this.triggerPrinting();
    }
  },
  async _initializeMetadata(pdfDocument) {
    const {
      info,
      metadata,
      contentDispositionFilename,
      contentLength
    } = await pdfDocument.getMetadata();
    if (pdfDocument !== this.pdfDocument) {
      return;
    }
    this.documentInfo = info;
    this.metadata = metadata;
    this._contentDispositionFilename ??= contentDispositionFilename;
    this._contentLength ??= contentLength;
    console.log(`PDF ${pdfDocument.fingerprints[0]} [${info.PDFFormatVersion} ` + `${(info.Producer || "-").trim()} / ${(info.Creator || "-").trim()}] ` + `(PDF.js: ${_pdfjsLib.version || "?"} [${_pdfjsLib.build || "?"}])  modified by ngx-extended-pdf-viewer`);
    let pdfTitle = info.Title;
    const metadataTitle = metadata?.get("dc:title");
    if (metadataTitle) {
      if (metadataTitle !== "Untitled" && !/[\uFFF0-\uFFFF]/g.test(metadataTitle)) {
        pdfTitle = metadataTitle;
      }
    }
    if (pdfTitle) {
      this.setTitle(`${pdfTitle} - ${this._contentDispositionFilename || this._title}`);
    } else if (this._contentDispositionFilename) {
      this.setTitle(this._contentDispositionFilename);
    }
    if (info.IsXFAPresent && !info.IsAcroFormPresent && !pdfDocument.isPureXfa) {
      if (pdfDocument.loadingParams.enableXfa) {
        Window['ngxConsole'].warn("Warning: XFA Foreground documents are not supported");
      } else {
        Window['ngxConsole'].warn("Warning: XFA support is not enabled");
      }
    } else if ((info.IsAcroFormPresent || info.IsXFAPresent) && !this.pdfViewer.renderForms) {
      console.warn("Warning: Interactive form support is not enabled");
    }
    if (info.IsSignaturesPresent) {
      console.warn("Warning: Digital signatures validation is not supported");
    }
    this.eventBus.dispatch("metadataloaded", {
      source: this
    });
  },
  async _initializePageLabels(pdfDocument) {
    const labels = await pdfDocument.getPageLabels();
    if (pdfDocument !== this.pdfDocument) {
      return;
    }
    if (!labels || _app_options.AppOptions.get("disablePageLabels")) {
      return;
    }
    const numLabels = labels.length;
    let standardLabels = 0,
      emptyLabels = 0;
    for (let i = 0; i < numLabels; i++) {
      const label = labels[i];
      if (label === (i + 1).toString()) {
        standardLabels++;
      } else if (label === "") {
        emptyLabels++;
      } else {
        break;
      }
    }
    if (standardLabels >= numLabels || emptyLabels >= numLabels) {
      return;
    }
    const {
      pdfViewer,
      pdfThumbnailViewer,
      toolbar
    } = this;
    pdfViewer.setPageLabels(labels);
    pdfThumbnailViewer?.setPageLabels(labels);
    toolbar?.setPagesCount(numLabels, true);
    toolbar?.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel);
  },
  _initializePdfHistory({
    fingerprint,
    viewOnLoad,
    initialDest = null
  }) {
    if (!this.pdfHistory) {
      return;
    }
    this.pdfHistory.initialize({
      fingerprint,
      resetHistory: viewOnLoad === ViewOnLoad.INITIAL,
      updateUrl: _app_options.AppOptions.get("historyUpdateUrl")
    });
    if (this.pdfHistory.initialBookmark) {
      this.initialBookmark = this.pdfHistory.initialBookmark;
      this.initialRotation = this.pdfHistory.initialRotation;
    }
    if (initialDest && !this.initialBookmark && viewOnLoad === ViewOnLoad.UNKNOWN) {
      this.initialBookmark = JSON.stringify(initialDest);
      this.pdfHistory.push({
        explicitDest: initialDest,
        pageNumber: null
      });
    }
  },
  _initializeAnnotationStorageCallbacks(pdfDocument) {
    if (pdfDocument !== this.pdfDocument) {
      return;
    }
    const {
      annotationStorage
    } = pdfDocument;
    annotationStorage.onSetModified = () => {
      window.addEventListener("beforeunload", beforeUnload);
      this._annotationStorageModified = true;
    };
    annotationStorage.onResetModified = () => {
      window.removeEventListener("beforeunload", beforeUnload);
      delete this._annotationStorageModified;
    };
    annotationStorage.onAnnotationEditor = typeStr => {
      this._hasAnnotationEditors = !!typeStr;
      this.setTitle();
      if (typeStr) {
        this.externalServices.reportTelemetry({
          type: "editing",
          data: {
            type: typeStr
          }
        });
      }
    };
  },
  setInitialView(storedHash, {
    rotation,
    sidebarView,
    scrollMode,
    spreadMode
  } = {}) {
    const setRotation = angle => {
      if ((0, _ui_utils.isValidRotation)(angle)) {
        this.pdfViewer.pagesRotation = angle;
      }
    };
    const setViewerModes = (scroll, spread) => {
      if ((0, _ui_utils.isValidScrollMode)(scroll)) {
        this.pdfViewer.scrollMode = scroll;
      }
      if ((0, _ui_utils.isValidSpreadMode)(spread)) {
        this.pdfViewer.spreadMode = spread;
      }
    };
    this.isInitialViewSet = true;
    this.pdfSidebar?.setInitialView(sidebarView);
    setViewerModes(scrollMode, spreadMode);
    if (this.initialBookmark) {
      setRotation(this.initialRotation);
      delete this.initialRotation;
      this.pdfLinkService.setHash(this.initialBookmark);
      this.initialBookmark = null;
    } else if (storedHash) {
      setRotation(rotation);
      this.pdfLinkService.setHash(storedHash);
    }
    this.toolbar?.setPageNumber(this.pdfViewer.currentPageNumber, this.pdfViewer.currentPageLabel);
    this.secondaryToolbar?.setPageNumber(this.pdfViewer.currentPageNumber);
    if (!this.pdfViewer.currentScaleValue) {
      const defaultZoomOption = PDFViewerApplicationOptions.get('defaultZoomValue');
      if (defaultZoomOption) {
        this.pdfViewer.currentScaleValue = defaultZoomOption;
      }
    }
  },
  _cleanup() {
    if (!this.pdfDocument) {
      return;
    }
    this.pdfViewer.cleanup();
    this.pdfThumbnailViewer?.cleanup();
    this.pdfDocument.cleanup(this.pdfViewer.renderer === _ui_utils.RendererType.SVG);
  },
  forceRendering() {
    this.pdfRenderingQueue.printing = !!this.printService;
    this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar?.visibleView === _ui_utils.SidebarView.THUMBS;
    this.pdfRenderingQueue.renderHighestPriority();
  },
  beforePrint() {
    this._printAnnotationStoragePromise = this.pdfScriptingManager.dispatchWillPrint().catch(() => {}).then(() => {
      return this.pdfDocument?.annotationStorage.print;
    });
    if (this.printService) {
      return;
    }
    if (!this.supportsPrinting) {
      this.l10n.get("printing_not_supported").then(msg => {
        this._otherError(msg);
      });
      return;
    }
    if (!this.pdfViewer.pageViewsReady) {
      this.l10n.get("printing_not_ready").then(msg => {
        window.alert(msg);
      });
      return;
    }
    const pagesOverview = this.pdfViewer.getPagesOverview();
    const printContainer = this.appConfig.printContainer;
    const printResolution = _app_options.AppOptions.get("printResolution");
    const optionalContentConfigPromise = this.pdfViewer.optionalContentConfigPromise;
    const printService = PDFPrintServiceFactory.instance.createPrintService(this.pdfDocument, pagesOverview, printContainer, printResolution, optionalContentConfigPromise, this._printAnnotationStoragePromise, this.l10n, this.pdfViewer.eventBus);
    this.printService = printService;
    this.forceRendering();
    this.setTitle();
    printService.layout();
    if (this._hasAnnotationEditors) {
      this.externalServices.reportTelemetry({
        type: "editing",
        data: {
          type: "print"
        }
      });
    }
  },
  afterPrint() {
    if (this._printAnnotationStoragePromise) {
      this._printAnnotationStoragePromise.then(() => {
        this.pdfScriptingManager.dispatchDidPrint();
      });
      this._printAnnotationStoragePromise = null;
    }
    if (this.printService) {
      this.printService.destroy();
      this.printService = null;
      this.pdfDocument?.annotationStorage.resetModified();
    }
    this.forceRendering();
    this.setTitle();
  },
  rotatePages(delta) {
    this.pdfViewer.pagesRotation += delta;
  },
  requestPresentationMode() {
    this.pdfPresentationMode?.request();
  },
  triggerPrinting() {
    if (!this.supportsPrinting) {
      return;
    }
    window.printPDF();
  },
  bindEvents() {
    const {
      eventBus,
      _boundEvents
    } = this;
    _boundEvents.beforePrint = this.beforePrint.bind(this);
    _boundEvents.afterPrint = this.afterPrint.bind(this);
    eventBus._on("resize", webViewerResize);
    eventBus._on("hashchange", webViewerHashchange);
    eventBus._on("beforeprint", _boundEvents.beforePrint);
    eventBus._on("afterprint", _boundEvents.afterPrint);
    eventBus._on("pagerender", webViewerPageRender);
    eventBus._on("pagerendered", webViewerPageRendered);
    eventBus._on("updateviewarea", webViewerUpdateViewarea);
    eventBus._on("pagechanging", webViewerPageChanging);
    eventBus._on("scalechanging", webViewerScaleChanging);
    eventBus._on("rotationchanging", webViewerRotationChanging);
    eventBus._on("sidebarviewchanged", webViewerSidebarViewChanged);
    eventBus._on("pagemode", webViewerPageMode);
    eventBus._on("namedaction", webViewerNamedAction);
    eventBus._on("presentationmodechanged", webViewerPresentationModeChanged);
    eventBus._on("presentationmode", webViewerPresentationMode);
    eventBus._on("switchannotationeditormode", webViewerSwitchAnnotationEditorMode);
    eventBus._on("switchannotationeditorparams", webViewerSwitchAnnotationEditorParams);
    eventBus._on("print", webViewerPrint);
    eventBus._on("download", webViewerDownload);
    eventBus._on("firstpage", webViewerFirstPage);
    eventBus._on("lastpage", webViewerLastPage);
    eventBus._on("nextpage", webViewerNextPage);
    eventBus._on("previouspage", webViewerPreviousPage);
    eventBus._on("zoomin", webViewerZoomIn);
    eventBus._on("zoomout", webViewerZoomOut);
    eventBus._on("zoomreset", webViewerZoomReset);
    eventBus._on("pagenumberchanged", webViewerPageNumberChanged);
    eventBus._on("scalechanged", webViewerScaleChanged);
    eventBus._on("rotatecw", webViewerRotateCw);
    eventBus._on("rotateccw", webViewerRotateCcw);
    eventBus._on("optionalcontentconfig", webViewerOptionalContentConfig);
    eventBus._on("switchscrollmode", webViewerSwitchScrollMode);
    eventBus._on("scrollmodechanged", webViewerScrollModeChanged);
    eventBus._on("switchspreadmode", webViewerSwitchSpreadMode);
    eventBus._on("spreadmodechanged", webViewerSpreadModeChanged);
    eventBus._on("documentproperties", webViewerDocumentProperties);
    eventBus._on("findfromurlhash", webViewerFindFromUrlHash);
    eventBus._on("updatefindmatchescount", webViewerUpdateFindMatchesCount);
    eventBus._on("updatefindcontrolstate", webViewerUpdateFindControlState);
    if (_app_options.AppOptions.get("pdfBug")) {
      _boundEvents.reportPageStatsPDFBug = reportPageStatsPDFBug;
      eventBus._on("pagerendered", _boundEvents.reportPageStatsPDFBug);
      eventBus._on("pagechanging", _boundEvents.reportPageStatsPDFBug);
    }
    eventBus._on("fileinputchange", webViewerFileInputChange);
    eventBus._on("openfile", webViewerOpenFile);
  },
  bindWindowEvents() {
    const {
      eventBus,
      _boundEvents
    } = this;
    function addWindowResolutionChange(evt = null) {
      if (evt) {
        webViewerResolutionChange(evt);
      }
      const mediaQueryList = window.matchMedia(`(resolution: ${window.devicePixelRatio || 1}dppx)`);
      mediaQueryList.addEventListener("change", addWindowResolutionChange, {
        once: true
      });
      _boundEvents.removeWindowResolutionChange ||= function () {
        mediaQueryList.removeEventListener("change", addWindowResolutionChange);
        _boundEvents.removeWindowResolutionChange = null;
      };
    }
    addWindowResolutionChange();
    _boundEvents.windowResize = () => {
      eventBus.dispatch("resize", {
        source: window
      });
    };
    _boundEvents.windowHashChange = () => {
      eventBus.dispatch("hashchange", {
        source: window,
        hash: document.location.hash.substring(1)
      });
    };
    _boundEvents.windowBeforePrint = () => {
      eventBus.dispatch("beforeprint", {
        source: window
      });
    };
    _boundEvents.windowAfterPrint = () => {
      eventBus.dispatch("afterprint", {
        source: window
      });
    };
    _boundEvents.windowUpdateFromSandbox = event => {
      eventBus.dispatch("updatefromsandbox", {
        source: window,
        detail: event.detail
      });
    };
    window.addEventListener("visibilitychange", webViewerVisibilityChange);
    window.addEventListener("wheel", webViewerWheel, {
      passive: false
    });
    window.addEventListener("touchstart", webViewerTouchStart, {
      passive: false