text: /**
   * @licstart The following is the entire license notice for the
   * Javascript code in this page
   *
   * Copyright 2020 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
   */
  
  /******/ (function(modules) { // webpackBootstrap
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  /******/ 			return installedModules[moduleId].exports;
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  /******/ 		};
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  /******/ 		// Flag the module as loaded
  /******/ 		module.l = true;
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  /******/ ([
  /* 0 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  ;
  let pdfjsWebApp, pdfjsWebAppOptions;
  {
    pdfjsWebApp = __webpack_require__(1);
    pdfjsWebAppOptions = __webpack_require__(3);
  }
  ;
  {
    __webpack_require__(33);
  }
  ;
  {
    __webpack_require__(38);
  }
  
  function getViewerConfiguration() {
    return {
      appContainer: document.body,
      mainContainer: document.getElementById("viewerContainer"),
      viewerContainer: document.getElementById("viewer"),
      eventBus: null,
      toolbar: {
        container: document.getElementById("toolbarViewer"),
        numPages: document.getElementById("numPages"),
        pageNumber: document.getElementById("pageNumber"),
        scaleSelectContainer: document.getElementById("scaleSelectContainer"),
        scaleSelect: document.getElementById("scaleSelect"),
        customScaleOption: document.getElementById("customScaleOption"),
        previous: document.getElementById("previous"),
        next: document.getElementById("next"),
        zoomIn: document.getElementById("zoomIn"),
        zoomOut: document.getElementById("zoomOut"),
        viewFind: document.getElementById("viewFind"),
        openFile: document.getElementById("openFile"),
        print: document.getElementById("print"),
        presentationModeButton: document.getElementById("presentationMode"),
        download: document.getElementById("download"),
        viewBookmark: document.getElementById("viewBookmark")
      },
      secondaryToolbar: {
        toolbar: document.getElementById("secondaryToolbar"),
        toggleButton: document.getElementById("secondaryToolbarToggle"),
        toolbarButtonContainer: document.getElementById("secondaryToolbarButtonContainer"),
        presentationModeButton: document.getElementById("secondaryPresentationMode"),
        openFileButton: document.getElementById("secondaryOpenFile"),
        printButton: document.getElementById("secondaryPrint"),
        downloadButton: document.getElementById("secondaryDownload"),
        viewBookmarkButton: document.getElementById("secondaryViewBookmark"),
        firstPageButton: document.getElementById("firstPage"),
        lastPageButton: document.getElementById("lastPage"),
        pageRotateCwButton: document.getElementById("pageRotateCw"),
        pageRotateCcwButton: document.getElementById("pageRotateCcw"),
        cursorSelectToolButton: document.getElementById("cursorSelectTool"),
        cursorHandToolButton: document.getElementById("cursorHandTool"),
        scrollVerticalButton: document.getElementById("scrollVertical"),
        scrollHorizontalButton: document.getElementById("scrollHorizontal"),
        scrollWrappedButton: document.getElementById("scrollWrapped"),
        spreadNoneButton: document.getElementById("spreadNone"),
        spreadOddButton: document.getElementById("spreadOdd"),
        spreadEvenButton: document.getElementById("spreadEven"),
        documentPropertiesButton: document.getElementById("documentProperties")
      },
      fullscreen: {
        contextFirstPage: document.getElementById("contextFirstPage"),
        contextLastPage: document.getElementById("contextLastPage"),
        contextPageRotateCw: document.getElementById("contextPageRotateCw"),
        contextPageRotateCcw: document.getElementById("contextPageRotateCcw")
      },
      sidebar: {
        outerContainer: document.getElementById("outerContainer"),
        viewerContainer: document.getElementById("viewerContainer"),
        toggleButton: document.getElementById("sidebarToggle"),
        thumbnailButton: document.getElementById("viewThumbnail"),
        outlineButton: document.getElementById("viewOutline"),
        attachmentsButton: document.getElementById("viewAttachments"),
        thumbnailView: document.getElementById("thumbnailView"),
        outlineView: document.getElementById("outlineView"),
        attachmentsView: document.getElementById("attachmentsView")
      },
      sidebarResizer: {
        outerContainer: document.getElementById("outerContainer"),
        resizer: document.getElementById("sidebarResizer")
      },
      findBar: {
        bar: document.getElementById("findbar"),
        toggleButton: document.getElementById("viewFind"),
        findField: document.getElementById("findInput"),
        highlightAllCheckbox: document.getElementById("findHighlightAll"),
        caseSensitiveCheckbox: document.getElementById("findMatchCase"),
        entireWordCheckbox: document.getElementById("findEntireWord"),
        findMsg: document.getElementById("findMsg"),
        findResultsCount: document.getElementById("findResultsCount"),
        findPreviousButton: document.getElementById("findPrevious"),
        findNextButton: document.getElementById("findNext")
      },
      passwordOverlay: {
        overlayName: "passwordOverlay",
        container: document.getElementById("passwordOverlay"),
        label: document.getElementById("passwordText"),
        input: document.getElementById("password"),
        submitButton: document.getElementById("passwordSubmit"),
        cancelButton: document.getElementById("passwordCancel")
      },
      documentProperties: {
        overlayName: "documentPropertiesOverlay",
        container: document.getElementById("documentPropertiesOverlay"),
        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")
        }
      },
      errorWrapper: {
        container: document.getElementById("errorWrapper"),
        errorMessage: document.getElementById("errorMessage"),
        closeButton: document.getElementById("errorClose"),
        errorMoreInfo: document.getElementById("errorMoreInfo"),
        moreInfoButton: document.getElementById("errorShowMore"),
        lessInfoButton: document.getElementById("errorShowLess")
      },
      printContainer: document.getElementById("printContainer"),
      openFileInputName: "fileInput",
      debuggerScriptPath: "./debugger.js"
    };
  }
  
  function webViewerLoad() {
    const config = getViewerConfiguration();
    window.PDFViewerApplication = pdfjsWebApp.PDFViewerApplication;
    window.PDFViewerApplicationOptions = pdfjsWebAppOptions.AppOptions;
    const event = document.createEvent("CustomEvent");
    event.initCustomEvent("webviewerloaded", true, true, {
      source: window
    });
  
    try {
      parent.document.dispatchEvent(event);
    } catch (ex) {
      console.error(`webviewerloaded: ${ex}`);
      document.dispatchEvent(event);
    }
  
    pdfjsWebApp.PDFViewerApplication.run(config);
  }
  
  if (document.readyState === "interactive" || document.readyState === "complete") {
    webViewerLoad();
  } else {
    document.addEventListener("DOMContentLoaded", webViewerLoad, true);
  }
  
  /***/ }),
  /* 1 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFPrintServiceFactory = exports.DefaultExternalServices = exports.PDFViewerApplication = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _app_options = __webpack_require__(3);
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _pdf_cursor_tools = __webpack_require__(6);
  
  var _pdf_rendering_queue = __webpack_require__(8);
  
  var _pdf_sidebar = __webpack_require__(9);
  
  var _overlay_manager = __webpack_require__(10);
  
  var _password_prompt = __webpack_require__(11);
  
  var _pdf_attachment_viewer = __webpack_require__(12);
  
  var _pdf_document_properties = __webpack_require__(13);
  
  var _pdf_find_bar = __webpack_require__(14);
  
  var _pdf_find_controller = __webpack_require__(15);
  
  var _pdf_history = __webpack_require__(17);
  
  var _pdf_link_service = __webpack_require__(18);
  
  var _pdf_outline_viewer = __webpack_require__(19);
  
  var _pdf_presentation_mode = __webpack_require__(20);
  
  var _pdf_sidebar_resizer = __webpack_require__(21);
  
  var _pdf_thumbnail_viewer = __webpack_require__(22);
  
  var _pdf_viewer = __webpack_require__(24);
  
  var _secondary_toolbar = __webpack_require__(29);
  
  var _toolbar = __webpack_require__(31);
  
  var _view_history = __webpack_require__(32);
  
  const DEFAULT_SCALE_DELTA = 1.1;
  const DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
  const FORCE_PAGES_LOADED_TIMEOUT = 10000;
  const WHEEL_ZOOM_DISABLED_TIMEOUT = 1000;
  const ENABLE_PERMISSIONS_CLASS = "enablePermissions";
  const ViewOnLoad = {
    UNKNOWN: -1,
    PREVIOUS: 0,
    INITIAL: 1
  };
  
  class DefaultExternalServices {
    constructor() {
      throw new Error("Cannot initialize DefaultExternalServices.");
    }
  
    static updateFindControlState(data) {}
  
    static updateFindMatchesCount(data) {}
  
    static initPassiveLoading(callbacks) {}
  
    static fallback(data, callback) {}
  
    static reportTelemetry(data) {}
  
    static createDownloadManager(options) {
      throw new Error("Not implemented: createDownloadManager");
    }
  
    static createPreferences() {
      throw new Error("Not implemented: createPreferences");
    }
  
    static createL10n(options) {
      throw new Error("Not implemented: createL10n");
    }
  
    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);
    }
  
  }
  
  exports.DefaultExternalServices = DefaultExternalServices;
  const PDFViewerApplication = {
    initialBookmark: document.location.hash.substring(1),
    _initializedCapability: (0, _pdfjsLib.createPromiseCapability)(),
    fellback: false,
    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,
    pdfCursorTools: null,
    store: null,
    downloadManager: null,
    overlayManager: null,
    preferences: null,
    toolbar: null,
    secondaryToolbar: null,
    eventBus: null,
    l10n: null,
    isInitialViewSet: false,
    downloadComplete: false,
    isViewerEmbedded: window.parent !== window,
    url: "",
    baseUrl: "",
    externalServices: DefaultExternalServices,
    _boundEvents: {},
    contentDispositionFilename: null,
  
    async initialize(appConfig) {
      this.preferences = this.externalServices.createPreferences();
      this.appConfig = appConfig;
      await this._readPreferences();
      await this._parseHashParameters();
      await this._initializeL10n();
  
      if (this.isViewerEmbedded && _app_options.AppOptions.get("externalLinkTarget") === _pdfjsLib.LinkTarget.NONE) {
        _app_options.AppOptions.set("externalLinkTarget", _pdfjsLib.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();
    },
  
    async _readPreferences() {
      if (_app_options.AppOptions.get("disablePreferences")) {
        return;
      }
  
      try {
        const prefs = await this.preferences.getAll();
  
        for (const name in prefs) {
          _app_options.AppOptions.set(name, prefs[name]);
        }
      } catch (reason) {
        console.error(`_readPreferences: "${reason.message}".`);
      }
    },
  
    async _parseHashParameters() {
      if (!_app_options.AppOptions.get("pdfBugEnabled")) {
        return undefined;
      }
  
      const hash = document.location.hash.substring(1);
  
      if (!hash) {
        return undefined;
      }
  
      const hashParams = (0, _ui_utils.parseQueryString)(hash),
            waitOn = [];
  
      if ("disableworker" in hashParams && hashParams.disableworker === "true") {
        waitOn.push(loadFakeWorker());
      }
  
      if ("disablerange" in hashParams) {
        _app_options.AppOptions.set("disableRange", hashParams.disablerange === "true");
      }
  
      if ("disablestream" in hashParams) {
        _app_options.AppOptions.set("disableStream", hashParams.disablestream === "true");
      }
  
      if ("disableautofetch" in hashParams) {
        _app_options.AppOptions.set("disableAutoFetch", hashParams.disableautofetch === "true");
      }
  
      if ("disablefontface" in hashParams) {
        _app_options.AppOptions.set("disableFontFace", hashParams.disablefontface === "true");
      }
  
      if ("disablehistory" in hashParams) {
        _app_options.AppOptions.set("disableHistory", hashParams.disablehistory === "true");
      }
  
      if ("webgl" in hashParams) {
        _app_options.AppOptions.set("enableWebGL", hashParams.webgl === "true");
      }
  
      if ("verbosity" in hashParams) {
        _app_options.AppOptions.set("verbosity", hashParams.verbosity | 0);
      }
  
      if ("textlayer" in hashParams) {
        switch (hashParams.textlayer) {
          case "off":
            _app_options.AppOptions.set("textLayerMode", _ui_utils.TextLayerMode.DISABLE);
  
            break;
  
          case "visible":
          case "shadow":
          case "hover":
            const viewer = this.appConfig.viewerContainer;
            viewer.classList.add("textLayer-" + hashParams.textlayer);
            break;
        }
      }
  
      if ("pdfbug" in hashParams) {
        _app_options.AppOptions.set("pdfBug", true);
  
        _app_options.AppOptions.set("fontExtraProperties", true);
  
        const enabled = hashParams.pdfbug.split(",");
        waitOn.push(loadAndEnablePDFBug(enabled));
      }
  
      if ("locale" in hashParams) {
        _app_options.AppOptions.set("locale", hashParams.locale);
      }
  
      return Promise.all(waitOn).catch(reason => {
        console.error(`_parseHashParameters: "${reason.message}".`);
      });
    },
  
    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;
    },
  
    async _initializeViewerComponents() {
      const appConfig = this.appConfig;
      const eventBus = appConfig.eventBus || new _ui_utils.EventBus({
        isInAutomation: this.externalServices.isInAutomation
      });
      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 = this.externalServices.createDownloadManager({
        disableCreateObjectURL: _app_options.AppOptions.get("disableCreateObjectURL")
      });
      this.downloadManager = downloadManager;
      const findController = new _pdf_find_controller.PDFFindController({
        linkService: pdfLinkService,
        eventBus
      });
      this.findController = findController;
      const container = appConfig.mainContainer;
      const viewer = appConfig.viewerContainer;
      this.pdfViewer = new _pdf_viewer.PDFViewer({
        container,
        viewer,
        eventBus,
        renderingQueue: pdfRenderingQueue,
        linkService: pdfLinkService,
        downloadManager,
        findController,
        renderer: _app_options.AppOptions.get("renderer"),
        enableWebGL: _app_options.AppOptions.get("enableWebGL"),
        l10n: this.l10n,
        textLayerMode: _app_options.AppOptions.get("textLayerMode"),
        imageResourcesPath: _app_options.AppOptions.get("imageResourcesPath"),
        renderInteractiveForms: _app_options.AppOptions.get("renderInteractiveForms"),
        enablePrintAutoRotate: _app_options.AppOptions.get("enablePrintAutoRotate"),
        useOnlyCssZoom: _app_options.AppOptions.get("useOnlyCssZoom"),
        maxCanvasPixels: _app_options.AppOptions.get("maxCanvasPixels")
      });
      pdfRenderingQueue.setViewer(this.pdfViewer);
      pdfLinkService.setViewer(this.pdfViewer);
      this.pdfThumbnailViewer = new _pdf_thumbnail_viewer.PDFThumbnailViewer({
        container: appConfig.sidebar.thumbnailView,
        renderingQueue: pdfRenderingQueue,
        linkService: pdfLinkService,
        l10n: this.l10n
      });
      pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer);
      this.pdfHistory = new _pdf_history.PDFHistory({
        linkService: pdfLinkService,
        eventBus
      });
      pdfLinkService.setHistory(this.pdfHistory);
  
      if (!this.supportsIntegratedFind) {
        this.findBar = new _pdf_find_bar.PDFFindBar(appConfig.findBar, eventBus, this.l10n);
      }
  
      this.pdfDocumentProperties = new _pdf_document_properties.PDFDocumentProperties(appConfig.documentProperties, this.overlayManager, eventBus, this.l10n);
      this.pdfCursorTools = new _pdf_cursor_tools.PDFCursorTools({
        container,
        eventBus,
        cursorToolOnLoad: _app_options.AppOptions.get("cursorToolOnLoad")
      });
      this.toolbar = new _toolbar.Toolbar(appConfig.toolbar, eventBus, this.l10n);
      this.secondaryToolbar = new _secondary_toolbar.SecondaryToolbar(appConfig.secondaryToolbar, container, eventBus);
  
      if (this.supportsFullscreen) {
        this.pdfPresentationMode = new _pdf_presentation_mode.PDFPresentationMode({
          container,
          pdfViewer: this.pdfViewer,
          eventBus,
          contextMenuItems: appConfig.fullscreen
        });
      }
  
      this.passwordPrompt = new _password_prompt.PasswordPrompt(appConfig.passwordOverlay, this.overlayManager, this.l10n);
      this.pdfOutlineViewer = new _pdf_outline_viewer.PDFOutlineViewer({
        container: appConfig.sidebar.outlineView,
        eventBus,
        linkService: pdfLinkService
      });
      this.pdfAttachmentViewer = new _pdf_attachment_viewer.PDFAttachmentViewer({
        container: appConfig.sidebar.attachmentsView,
        eventBus,
        downloadManager
      });
      this.pdfSidebar = new _pdf_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 _pdf_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(ticks) {
      if (this.pdfViewer.isInPresentationMode) {
        return;
      }
  
      let newScale = this.pdfViewer.currentScale;
  
      do {
        newScale = (newScale * DEFAULT_SCALE_DELTA).toFixed(2);
        newScale = Math.ceil(newScale * 10) / 10;
        newScale = Math.min(_ui_utils.MAX_SCALE, newScale);
      } while (--ticks > 0 && newScale < _ui_utils.MAX_SCALE);
  
      this.pdfViewer.currentScaleValue = newScale;
    },
  
    zoomOut(ticks) {
      if (this.pdfViewer.isInPresentationMode) {
        return;
      }
  
      let newScale = this.pdfViewer.currentScale;
  
      do {
        newScale = (newScale / DEFAULT_SCALE_DELTA).toFixed(2);
        newScale = Math.floor(newScale * 10) / 10;
        newScale = Math.max(_ui_utils.MIN_SCALE, newScale);
      } while (--ticks > 0 && newScale > _ui_utils.MIN_SCALE);
  
      this.pdfViewer.currentScaleValue = newScale;
    },
  
    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 printing() {
      return !!this.printService;
    },
  
    get supportsPrinting() {
      return PDFPrintServiceFactory.instance.supportsPrinting;
    },
  
    get supportsFullscreen() {
      let support;
      const doc = document.documentElement;
      support = !!(doc.requestFullscreen || doc.mozRequestFullScreen || doc.webkitRequestFullScreen || doc.msRequestFullscreen);
  
      if (document.fullscreenEnabled === false || document.mozFullScreenEnabled === false || document.webkitFullscreenEnabled === false || document.msFullscreenEnabled === false) {
        support = false;
      }
  
      return (0, _pdfjsLib.shadow)(this, "supportsFullscreen", support);
    },
  
    get supportsIntegratedFind() {
      return this.externalServices.supportsIntegratedFind;
    },
  
    get supportsDocumentFonts() {
      return this.externalServices.supportsDocumentFonts;
    },
  
    get loadingBar() {
      const bar = new _ui_utils.ProgressBar("#loadingBar");
      return (0, _pdfjsLib.shadow)(this, "loadingBar", bar);
    },
  
    get supportedMouseWheelZoomModifierKeys() {
      return this.externalServices.supportedMouseWheelZoomModifierKeys;
    },
  
    initPassiveLoading() {
      throw new Error("Not implemented: initPassiveLoading");
    },
  
    setTitleUsingUrl(url = "") {
      this.url = url;
      this.baseUrl = url.split("#")[0];
      let title = (0, _ui_utils.getPDFFileNameFromURL)(url, "");
  
      if (!title) {
        try {
          title = decodeURIComponent((0, _pdfjsLib.getFilenameFromUrl)(url)) || url;
        } catch (ex) {
          title = url;
        }
      }
  
      this.setTitle(title);
    },
  
    setTitle(title) {
      if (this.isViewerEmbedded) {
        return;
      }
  
      document.title = title;
    },
  
    async close() {
      const errorWrapper = this.appConfig.errorWrapper.container;
      errorWrapper.setAttribute("hidden", "true");
  
      if (!this.pdfLoadingTask) {
        return undefined;
      }
  
      const promise = 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);
      }
  
      webViewerResetPermissions();
      this.store = null;
      this.isInitialViewSet = false;
      this.downloadComplete = false;
      this.url = "";
      this.baseUrl = "";
      this.contentDispositionFilename = null;
      this.pdfSidebar.reset();
      this.pdfOutlineViewer.reset();
      this.pdfAttachmentViewer.reset();
  
      if (this.pdfHistory) {
        this.pdfHistory.reset();
      }
  
      if (this.findBar) {
        this.findBar.reset();
      }
  
      this.toolbar.reset();
      this.secondaryToolbar.reset();
  
      if (typeof PDFBug !== "undefined") {
        PDFBug.cleanup();
      }
  
      return promise;
    },
  
    async open(file, args) {
      if (this.pdfLoadingTask) {
        await this.close();
      }
  
      const workerParameters = _app_options.AppOptions.getAll(_app_options.OptionKind.WORKER);
  
      for (const key in workerParameters) {
        _pdfjsLib.GlobalWorkerOptions[key] = workerParameters[key];
      }
  
      const parameters = Object.create(null);
  
      if (typeof file === "string") {
        this.setTitleUsingUrl(file);
        parameters.url = file;
      } else if (file && "byteLength" in file) {
        parameters.data = file;
      } else if (file.url && file.originalUrl) {
        this.setTitleUsingUrl(file.originalUrl);
        parameters.url = file.url;
      }
  
      const apiParameters = _app_options.AppOptions.getAll(_app_options.OptionKind.API);
  
      for (const key in apiParameters) {
        let value = apiParameters[key];
  
        if (key === "docBaseUrl" && !value) {}
  
        parameters[key] = value;
      }
  
      if (args) {
        for (const key in args) {
          const value = args[key];
  
          if (key === "length") {
            this.pdfDocumentProperties.setFileSize(value);
          }
  
          parameters[key] = value;
        }
      }
  
      const loadingTask = (0, _pdfjsLib.getDocument)(parameters);
      this.pdfLoadingTask = loadingTask;
  
      loadingTask.onPassword = (updateCallback, reason) => {
        this.pdfLinkService.externalLinkEnabled = false;
        this.passwordPrompt.setUpdateCallback(updateCallback, reason);
        this.passwordPrompt.open();
      };
  
      loadingTask.onProgress = ({
        loaded,
        total
      }) => {
        this.progress(loaded / total);
      };
  
      loadingTask.onUnsupportedFeature = this.fallback.bind(this);
      return loadingTask.promise.then(pdfDocument => {
        this.load(pdfDocument);
      }, exception => {
        if (loadingTask !== this.pdfLoadingTask) {
          return undefined;
        }
  
        const message = exception && exception.message;
        let loadingErrorMessage;
  
        if (exception instanceof _pdfjsLib.InvalidPDFException) {
          loadingErrorMessage = this.l10n.get("invalid_file_error", null, "Invalid or corrupted PDF file.");
        } else if (exception instanceof _pdfjsLib.MissingPDFException) {
          loadingErrorMessage = this.l10n.get("missing_file_error", null, "Missing PDF file.");
        } else if (exception instanceof _pdfjsLib.UnexpectedResponseException) {
          loadingErrorMessage = this.l10n.get("unexpected_response_error", null, "Unexpected server response.");
        } else {
          loadingErrorMessage = this.l10n.get("loading_error", null, "An error occurred while loading the PDF.");
        }
  
        return loadingErrorMessage.then(msg => {
          this.error(msg, {
            message
          });
          throw exception;
        });
      });
    },
  
    download() {
      function downloadByUrl() {
        downloadManager.downloadUrl(url, filename);
      }
  
      const url = this.baseUrl;
      const filename = this.contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(this.url);
      const downloadManager = this.downloadManager;
  
      downloadManager.onerror = err => {
        this.error(`PDF failed to download: ${err}`);
      };
  
      if (!this.pdfDocument || !this.downloadComplete) {
        downloadByUrl();
        return;
      }
  
      this.pdfDocument.getData().then(function (data) {
        const blob = new Blob([data], {
          type: "application/pdf"
        });
        downloadManager.download(blob, url, filename);
      }).catch(downloadByUrl);
    },
  
    fallback(featureId) {
      if (this.fellback) {
        return;
      }
  
      this.fellback = true;
      this.externalServices.fallback({
        featureId,
        url: this.baseUrl
      }, function response(download) {
        if (!download) {
          return;
        }
  
        PDFViewerApplication.download();
      });
    },
  
    error(message, moreInfo) {
      const moreInfoText = [this.l10n.get("error_version_info", {
        version: _pdfjsLib.version || "?",
        build: _pdfjsLib.build || "?"
      }, "PDF.js v{{version}} (build: {{build}})")];
  
      if (moreInfo) {
        moreInfoText.push(this.l10n.get("error_message", {
          message: moreInfo.message
        }, "Message: {{message}}"));
  
        if (moreInfo.stack) {
          moreInfoText.push(this.l10n.get("error_stack", {
            stack: moreInfo.stack
          }, "Stack: {{stack}}"));
        } else {
          if (moreInfo.filename) {
            moreInfoText.push(this.l10n.get("error_file", {
              file: moreInfo.filename
            }, "File: {{file}}"));
          }
  
          if (moreInfo.lineNumber) {
            moreInfoText.push(this.l10n.get("error_line", {
              line: moreInfo.lineNumber
            }, "Line: {{line}}"));
          }
        }
      }
  
      const errorWrapperConfig = this.appConfig.errorWrapper;
      const errorWrapper = errorWrapperConfig.container;
      errorWrapper.removeAttribute("hidden");
      const errorMessage = errorWrapperConfig.errorMessage;
      errorMessage.textContent = message;
      const closeButton = errorWrapperConfig.closeButton;
  
      closeButton.onclick = function () {
        errorWrapper.setAttribute("hidden", "true");
      };
  
      const errorMoreInfo = errorWrapperConfig.errorMoreInfo;
      const moreInfoButton = errorWrapperConfig.moreInfoButton;
      const lessInfoButton = errorWrapperConfig.lessInfoButton;
  
      moreInfoButton.onclick = function () {
        errorMoreInfo.removeAttribute("hidden");
        moreInfoButton.setAttribute("hidden", "true");
        lessInfoButton.removeAttribute("hidden");
        errorMoreInfo.style.height = errorMoreInfo.scrollHeight + "px";
      };
  
      lessInfoButton.onclick = function () {
        errorMoreInfo.setAttribute("hidden", "true");
        moreInfoButton.removeAttribute("hidden");
        lessInfoButton.setAttribute("hidden", "true");
      };
  
      moreInfoButton.oncontextmenu = _ui_utils.noContextMenuHandler;
      lessInfoButton.oncontextmenu = _ui_utils.noContextMenuHandler;
      closeButton.oncontextmenu = _ui_utils.noContextMenuHandler;
      moreInfoButton.removeAttribute("hidden");
      lessInfoButton.setAttribute("hidden", "true");
      Promise.all(moreInfoText).then(parts => {
        errorMoreInfo.value = parts.join("\n");
      });
    },
  
    progress(level) {
      if (this.downloadComplete) {
        return;
      }
  
      const percent = Math.round(level * 100);
  
      if (percent > this.loadingBar.percent || isNaN(percent)) {
        this.loadingBar.percent = percent;
        const disableAutoFetch = this.pdfDocument ? this.pdfDocument.loadingParams.disableAutoFetch : _app_options.AppOptions.get("disableAutoFetch");
  
        if (disableAutoFetch && percent) {
          if (this.disableAutoFetchLoadingBarTimeout) {
            clearTimeout(this.disableAutoFetchLoadingBarTimeout);
            this.disableAutoFetchLoadingBarTimeout = null;
          }
  
          this.loadingBar.show();
          this.disableAutoFetchLoadingBarTimeout = setTimeout(() => {
            this.loadingBar.hide();
            this.disableAutoFetchLoadingBarTimeout = null;
          }, DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT);
        }
      }
    },
  
    load(pdfDocument) {
      this.pdfDocument = pdfDocument;
      pdfDocument.getDownloadInfo().then(() => {
        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;
      this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
      this.pdfDocumentProperties.setDocument(pdfDocument, this.url);
      const pdfViewer = this.pdfViewer;
      pdfViewer.setDocument(pdfDocument);
      const {
        firstPagePromise,
        onePageRendered,
        pagesPromise
      } = pdfViewer;
      const pdfThumbnailViewer = this.pdfThumbnailViewer;
      pdfThumbnailViewer.setDocument(pdfDocument);
      const storedPromise = (this.store = new _view_history.ViewHistory(pdfDocument.fingerprint)).getMultiple({
        page: null,
        zoom: _ui_utils.DEFAULT_SCALE_VALUE,
        scrollLeft: "0",
        scrollTop: "0",
        rotation: null,
        sidebarView: _pdf_sidebar.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);
        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.fingerprint,
            viewOnLoad,
            initialDest: openAction && 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 === _pdf_sidebar.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 === _pdf_sidebar.SidebarView.UNKNOWN) {
            sidebarView = apiPageModeToSidebarView(pageMode);
          }
  
          if (pageLayout && spreadMode === _ui_utils.SpreadMode.UNKNOWN) {
            spreadMode = apiPageLayoutToSpreadMode(pageLayout);
          }
  
          this.setInitialView(hash, {
            rotation,
            sidebarView,
            scrollMode,
            spreadMode
          });
          this.eventBus.dispatch("documentinit", {
            source: this
          });
  
          if (!this.isViewerEmbedded) {
            pdfViewer.focus();
          }
  
          this._initializePermissions(pdfDocument);
  
          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._initializeAutoPrint(pdfDocument, openActionPromise);
      });
      onePageRendered.then(() => {
        pdfDocument.getOutline().then(outline => {
          this.pdfOutlineViewer.render({
            outline
          });
        });
        pdfDocument.getAttachments().then(attachments => {
          this.pdfAttachmentViewer.render({
            attachments
          });
        });
      });
  
      this._initializePageLabels(pdfDocument);
  
      this._initializeMetadata(pdfDocument);
    },
  
    async _initializeAutoPrint(pdfDocument, openActionPromise) {
      const [openAction, javaScript] = await Promise.all([openActionPromise, pdfDocument.getJavaScript()]);
  
      if (pdfDocument !== this.pdfDocument) {
        return;
      }
  
      let triggerAutoPrint = false;
  
      if (openAction && openAction.action === "Print") {
        triggerAutoPrint = true;
      }
  
      if (javaScript) {
        javaScript.some(js => {
          if (!js) {
            return false;
          }
  
          console.warn("Warning: JavaScript is not supported");
          this.fallback(_pdfjsLib.UNSUPPORTED_FEATURES.javaScript);
          return true;
        });
  
        if (!triggerAutoPrint) {
          for (const js of javaScript) {
            if (js && _ui_utils.AutoPrintRegExp.test(js)) {
              triggerAutoPrint = true;
              break;
            }
          }
        }
      }
  
      if (!this.supportsPrinting) {
        return;
      }
  
      if (triggerAutoPrint) {
        setTimeout(function () {
          window.print();
        });
      }
    },
  
    async _initializeMetadata(pdfDocument) {
      const {
        info,
        metadata,
        contentDispositionFilename
      } = await pdfDocument.getMetadata();
  
      if (pdfDocument !== this.pdfDocument) {
        return;
      }
  
      this.documentInfo = info;
      this.metadata = metadata;
      this.contentDispositionFilename = contentDispositionFilename;
      console.log(`PDF ${pdfDocument.fingerprint} [${info.PDFFormatVersion} ` + `${(info.Producer || "-").trim()} / ${(info.Creator || "-").trim()}] ` + `(PDF.js: ${_pdfjsLib.version || "-"}` + `${this.pdfViewer.enableWebGL ? " [WebGL]" : ""})`);
      let pdfTitle;
      const infoTitle = info && info.Title;
  
      if (infoTitle) {
        pdfTitle = infoTitle;
      }
  
      const metadataTitle = metadata && metadata.get("dc:title");
  
      if (metadataTitle) {
        if (metadataTitle !== "Untitled" && !/[\uFFF0-\uFFFF]/g.test(metadataTitle)) {
          pdfTitle = metadataTitle;
        }
      }
  
      if (pdfTitle) {
        this.setTitle(`${pdfTitle} - ${contentDispositionFilename || document.title}`);
      } else if (contentDispositionFilename) {
        this.setTitle(contentDispositionFilename);
      }
  
      if (info.IsAcroFormPresent) {
        console.warn("Warning: AcroForm/XFA is not supported");
        this.fallback(_pdfjsLib.UNSUPPORTED_FEATURES.forms);
      }
  
      let versionId = "other";
      const KNOWN_VERSIONS = ["1.0", "1.1", "1.2", "1.3", "1.4", "1.5", "1.6", "1.7", "1.8", "1.9", "2.0", "2.1", "2.2", "2.3"];
  
      if (KNOWN_VERSIONS.includes(info.PDFFormatVersion)) {
        versionId = `v${info.PDFFormatVersion.replace(".", "_")}`;
      }
  
      let generatorId = "other";
      const KNOWN_GENERATORS = ["acrobat distiller", "acrobat pdfwriter", "adobe livecycle", "adobe pdf library", "adobe photoshop", "ghostscript", "tcpdf", "cairo", "dvipdfm", "dvips", "pdftex", "pdfkit", "itext", "prince", "quarkxpress", "mac os x", "microsoft", "openoffice", "oracle", "luradocument", "pdf-xchange", "antenna house", "aspose.cells", "fpdf"];
  
      if (info.Producer) {
        const producer = info.Producer.toLowerCase();
        KNOWN_GENERATORS.some(function (generator) {
          if (!producer.includes(generator)) {
            return false;
          }
  
          generatorId = generator.replace(/[ .\-]/g, "_");
          return true;
        });
      }
  
      let formType = null;
  
      if (info.IsAcroFormPresent) {
        formType = info.IsXFAPresent ? "xfa" : "acroform";
      }
  
      this.externalServices.reportTelemetry({
        type: "documentInfo",
        version: versionId,
        generator: generatorId,
        formType
      });
    },
  
    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;
  
      if (numLabels !== this.pagesCount) {
        console.error("The number of Page Labels does not match the number of pages in the document.");
        return;
      }
  
      let i = 0;
  
      while (i < numLabels && labels[i] === (i + 1).toString()) {
        i++;
      }
  
      if (i === 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.isViewerEmbedded || _app_options.AppOptions.get("disableHistory")) {
        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
        });
      }
    },
  
    async _initializePermissions(pdfDocument) {
      const permissions = await pdfDocument.getPermissions();
  
      if (pdfDocument !== this.pdfDocument) {
        return;
      }
  
      if (!permissions || !_app_options.AppOptions.get("enablePermissions")) {
        return;
      }
  
      if (!permissions.includes(_pdfjsLib.PermissionFlag.COPY)) {
        this.appConfig.viewerContainer.classList.add(ENABLE_PERMISSIONS_CLASS);
      }
    },
  
    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) {
        this.pdfViewer.currentScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
      }
    },
  
    cleanup() {
      if (!this.pdfDocument) {
        return;
      }
  
      this.pdfViewer.cleanup();
      this.pdfThumbnailViewer.cleanup();
  
      if (this.pdfViewer.renderer !== _ui_utils.RendererType.SVG) {
        this.pdfDocument.cleanup();
      }
    },
  
    forceRendering() {
      this.pdfRenderingQueue.printing = this.printing;
      this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar.isThumbnailViewVisible;
      this.pdfRenderingQueue.renderHighestPriority();
    },
  
    beforePrint() {
      if (this.printService) {
        return;
      }
  
      if (!this.supportsPrinting) {
        this.l10n.get("printing_not_supported", null, "Warning: Printing is not fully supported by this browser.").then(printMessage => {
          this.error(printMessage);
        });
        return;
      }
  
      if (!this.pdfViewer.pageViewsReady) {
        this.l10n.get("printing_not_ready", null, "Warning: The PDF is not fully loaded for printing.").then(notReadyMessage => {
          window.alert(notReadyMessage);
        });
        return;
      }
  
      const pagesOverview = this.pdfViewer.getPagesOverview();
      const printContainer = this.appConfig.printContainer;
      const printService = PDFPrintServiceFactory.instance.createPrintService(this.pdfDocument, pagesOverview, printContainer, this.l10n);
      this.printService = printService;
      this.forceRendering();
      printService.layout();
      this.externalServices.reportTelemetry({
        type: "print"
      });
    },
  
    afterPrint() {
      if (this.printService) {
        this.printService.destroy();
        this.printService = null;
      }
  
      this.forceRendering();
    },
  
    rotatePages(delta) {
      if (!this.pdfDocument) {
        return;
      }
  
      const newRotation = (this.pdfViewer.pagesRotation + 360 + delta) % 360;
      this.pdfViewer.pagesRotation = newRotation;
    },
  
    requestPresentationMode() {
      if (!this.pdfPresentationMode) {
        return;
      }
  
      this.pdfPresentationMode.request();
    },
  
    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("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("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("switchscrollmode", webViewerSwitchScrollMode);
  
      eventBus._on("scrollmodechanged", webViewerScrollModeChanged);
  
      eventBus._on("switchspreadmode", webViewerSwitchSpreadMode);
  
      eventBus._on("spreadmodechanged", webViewerSpreadModeChanged);
  
      eventBus._on("documentproperties", webViewerDocumentProperties);
  
      eventBus._on("find", webViewerFind);
  
      eventBus._on("findfromurlhash", webViewerFindFromUrlHash);
  
      eventBus._on("updatefindmatchescount", webViewerUpdateFindMatchesCount);
  
      eventBus._on("updatefindcontrolstate", webViewerUpdateFindControlState);
  
      eventBus._on("fileinputchange", webViewerFileInputChange);
  
      eventBus._on("openfile", webViewerOpenFile);
    },
  
    bindWindowEvents() {
      const {
        eventBus,
        _boundEvents
      } = this;
  
      _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
        });
      };
  
      window.addEventListener("visibilitychange", webViewerVisibilityChange);
      window.addEventListener("wheel", webViewerWheel, {
        passive: false
      });
      window.addEventListener("click", webViewerClick);
      window.addEventListener("keydown", webViewerKeyDown);
      window.addEventListener("resize", _boundEvents.windowResize);
      window.addEventListener("hashchange", _boundEvents.windowHashChange);
      window.addEventListener("beforeprint", _boundEvents.windowBeforePrint);
      window.addEventListener("afterprint", _boundEvents.windowAfterPrint);
    },
  
    unbindEvents() {
      const {
        eventBus,
        _boundEvents
      } = this;
  
      eventBus._off("resize", webViewerResize);
  
      eventBus._off("hashchange", webViewerHashchange);
  
      eventBus._off("beforeprint", _boundEvents.beforePrint);
  
      eventBus._off("afterprint", _boundEvents.afterPrint);
  
      eventBus._off("pagerendered", webViewerPageRendered);
  
      eventBus._off("updateviewarea", webViewerUpdateViewarea);
  
      eventBus._off("pagechanging", webViewerPageChanging);
  
      eventBus._off("scalechanging", webViewerScaleChanging);
  
      eventBus._off("rotationchanging", webViewerRotationChanging);
  
      eventBus._off("sidebarviewchanged", webViewerSidebarViewChanged);
  
      eventBus._off("pagemode", webViewerPageMode);
  
      eventBus._off("namedaction", webViewerNamedAction);
  
      eventBus._off("presentationmodechanged", webViewerPresentationModeChanged);
  
      eventBus._off("presentationmode", webViewerPresentationMode);
  
      eventBus._off("print", webViewerPrint);
  
      eventBus._off("download", webViewerDownload);
  
      eventBus._off("firstpage", webViewerFirstPage);
  
      eventBus._off("lastpage", webViewerLastPage);
  
      eventBus._off("nextpage", webViewerNextPage);
  
      eventBus._off("previouspage", webViewerPreviousPage);
  
      eventBus._off("zoomin", webViewerZoomIn);
  
      eventBus._off("zoomout", webViewerZoomOut);
  
      eventBus._off("zoomreset", webViewerZoomReset);
  
      eventBus._off("pagenumberchanged", webViewerPageNumberChanged);
  
      eventBus._off("scalechanged", webViewerScaleChanged);
  
      eventBus._off("rotatecw", webViewerRotateCw);
  
      eventBus._off("rotateccw", webViewerRotateCcw);
  
      eventBus._off("switchscrollmode", webViewerSwitchScrollMode);
  
      eventBus._off("scrollmodechanged", webViewerScrollModeChanged);
  
      eventBus._off("switchspreadmode", webViewerSwitchSpreadMode);
  
      eventBus._off("spreadmodechanged", webViewerSpreadModeChanged);
  
      eventBus._off("documentproperties", webViewerDocumentProperties);
  
      eventBus._off("find", webViewerFind);
  
      eventBus._off("findfromurlhash", webViewerFindFromUrlHash);
  
      eventBus._off("updatefindmatchescount", webViewerUpdateFindMatchesCount);
  
      eventBus._off("updatefindcontrolstate", webViewerUpdateFindControlState);
  
      eventBus._off("fileinputchange", webViewerFileInputChange);
  
      eventBus._off("openfile", webViewerOpenFile);
  
      _boundEvents.beforePrint = null;
      _boundEvents.afterPrint = null;
    },
  
    unbindWindowEvents() {
      const {
        _boundEvents
      } = this;
      window.removeEventListener("visibilitychange", webViewerVisibilityChange);
      window.removeEventListener("wheel", webViewerWheel, {
        passive: false
      });
      window.removeEventListener("click", webViewerClick);
      window.removeEventListener("keydown", webViewerKeyDown);
      window.removeEventListener("resize", _boundEvents.windowResize);
      window.removeEventListener("hashchange", _boundEvents.windowHashChange);
      window.removeEventListener("beforeprint", _boundEvents.windowBeforePrint);
      window.removeEventListener("afterprint", _boundEvents.windowAfterPrint);
      _boundEvents.windowResize = null;
      _boundEvents.windowHashChange = null;
      _boundEvents.windowBeforePrint = null;
      _boundEvents.windowAfterPrint = null;
    }
  
  };
  exports.PDFViewerApplication = PDFViewerApplication;
  let validateFileURL;
  {
    const HOSTED_VIEWER_ORIGINS = ["null", "http://mozilla.github.io", "https://mozilla.github.io"];
  
    validateFileURL = function (file) {
      if (file === undefined) {
        return;
      }
  
      try {
        const viewerOrigin = new URL(window.location.href).origin || "null";
  
        if (HOSTED_VIEWER_ORIGINS.includes(viewerOrigin)) {
          return;
        }
  
        const {
          origin,
          protocol
        } = new URL(file, window.location.href);
  
        if (origin !== viewerOrigin && protocol !== "blob:") {
          throw new Error("file origin does not match viewer's");
        }
      } catch (ex) {
        const message = ex && ex.message;
        PDFViewerApplication.l10n.get("loading_error", null, "An error occurred while loading the PDF.").then(loadingErrorMessage => {
          PDFViewerApplication.error(loadingErrorMessage, {
            message
          });
        });
        throw ex;
      }
    };
  }
  
  async function loadFakeWorker() {
    if (!_pdfjsLib.GlobalWorkerOptions.workerSrc) {
      _pdfjsLib.GlobalWorkerOptions.workerSrc = _app_options.AppOptions.get("workerSrc");
    }
  
    return (0, _pdfjsLib.loadScript)(_pdfjsLib.PDFWorker.getWorkerSrc());
  }
  
  function loadAndEnablePDFBug(enabledTabs) {
    const appConfig = PDFViewerApplication.appConfig;
    return (0, _pdfjsLib.loadScript)(appConfig.debuggerScriptPath).then(function () {
      PDFBug.enable(enabledTabs);
      PDFBug.init({
        OPS: _pdfjsLib.OPS
      }, appConfig.mainContainer);
    });
  }
  
  function webViewerInitialized() {
    const appConfig = PDFViewerApplication.appConfig;
    let file;
    const queryString = document.location.search.substring(1);
    const params = (0, _ui_utils.parseQueryString)(queryString);
    file = "file" in params ? params.file : _app_options.AppOptions.get("defaultUrl");
    validateFileURL(file);
    const fileInput = document.createElement("input");
    fileInput.id = appConfig.openFileInputName;
    fileInput.className = "fileInput";
    fileInput.setAttribute("type", "file");
    fileInput.oncontextmenu = _ui_utils.noContextMenuHandler;
    document.body.appendChild(fileInput);
  
    if (!window.File || !window.FileReader || !window.FileList || !window.Blob) {
      appConfig.toolbar.openFile.setAttribute("hidden", "true");
      appConfig.secondaryToolbar.openFileButton.setAttribute("hidden", "true");
    } else {
      fileInput.value = null;
    }
  
    fileInput.addEventListener("change", function (evt) {
      const files = evt.target.files;
  
      if (!files || files.length === 0) {
        return;
      }
  
      PDFViewerApplication.eventBus.dispatch("fileinputchange", {
        source: this,
        fileInput: evt.target
      });
    });
    appConfig.mainContainer.addEventListener("dragover", function (evt) {
      evt.preventDefault();
      evt.dataTransfer.dropEffect = "move";
    });
    appConfig.mainContainer.addEventListener("drop", function (evt) {
      evt.preventDefault();
      const files = evt.dataTransfer.files;
  
      if (!files || files.length === 0) {
        return;
      }
  
      PDFViewerApplication.eventBus.dispatch("fileinputchange", {
        source: this,
        fileInput: evt.dataTransfer
      });
    });
  
    if (!PDFViewerApplication.supportsDocumentFonts) {
      _app_options.AppOptions.set("disableFontFace", true);
  
      PDFViewerApplication.l10n.get("web_fonts_disabled", null, "Web fonts are disabled: unable to use embedded PDF fonts.").then(msg => {
        console.warn(msg);
      });
    }
  
    if (!PDFViewerApplication.supportsPrinting) {
      appConfig.toolbar.print.classList.add("hidden");
      appConfig.secondaryToolbar.printButton.classList.add("hidden");
    }
  
    if (!PDFViewerApplication.supportsFullscreen) {
      appConfig.toolbar.presentationModeButton.classList.add("hidden");
      appConfig.secondaryToolbar.presentationModeButton.classList.add("hidden");
    }
  
    if (PDFViewerApplication.supportsIntegratedFind) {
      appConfig.toolbar.viewFind.classList.add("hidden");
    }
  
    appConfig.mainContainer.addEventListener("transitionend", function (evt) {
      if (evt.target === this) {
        PDFViewerApplication.eventBus.dispatch("resize", {
          source: this
        });
      }
    }, true);
  
    try {
      webViewerOpenFileViaURL(file);
    } catch (reason) {
      PDFViewerApplication.l10n.get("loading_error", null, "An error occurred while loading the PDF.").then(msg => {
        PDFViewerApplication.error(msg, reason);
      });
    }
  }
  
  let webViewerOpenFileViaURL;
  {
    webViewerOpenFileViaURL = function (file) {
      if (file && file.lastIndexOf("file:", 0) === 0) {
        PDFViewerApplication.setTitleUsingUrl(file);
        const xhr = new XMLHttpRequest();
  
        xhr.onload = function () {
          PDFViewerApplication.open(new Uint8Array(xhr.response));
        };
  
        xhr.open("GET", file);
        xhr.responseType = "arraybuffer";
        xhr.send();
        return;
      }
  
      if (file) {
        PDFViewerApplication.open(file);
      }
    };
  }
  
  function webViewerResetPermissions() {
    const {
      appConfig
    } = PDFViewerApplication;
  
    if (!appConfig) {
      return;
    }
  
    appConfig.viewerContainer.classList.remove(ENABLE_PERMISSIONS_CLASS);
  }
  
  function webViewerPageRendered(evt) {
    const pageNumber = evt.pageNumber;
    const pageIndex = pageNumber - 1;
    const pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
  
    if (pageNumber === PDFViewerApplication.page) {
      PDFViewerApplication.toolbar.updateLoadingIndicatorState(false);
    }
  
    if (!pageView) {
      return;
    }
  
    if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
      const thumbnailView = PDFViewerApplication.pdfThumbnailViewer.getThumbnail(pageIndex);
      thumbnailView.setImage(pageView);
    }
  
    if (typeof Stats !== "undefined" && Stats.enabled && pageView.stats) {
      Stats.add(pageNumber, pageView.stats);
    }
  
    if (pageView.error) {
      PDFViewerApplication.l10n.get("rendering_error", null, "An error occurred while rendering the page.").then(msg => {
        PDFViewerApplication.error(msg, pageView.error);
      });
    }
  
    PDFViewerApplication.externalServices.reportTelemetry({
      type: "pageInfo",
      timestamp: evt.timestamp
    });
    PDFViewerApplication.pdfDocument.getStats().then(function (stats) {
      PDFViewerApplication.externalServices.reportTelemetry({
        type: "documentStats",
        stats
      });
    });
  }
  
  function webViewerPageMode({
    mode
  }) {
    let view;
  
    switch (mode) {
      case "thumbs":
        view = _pdf_sidebar.SidebarView.THUMBS;
        break;
  
      case "bookmarks":
      case "outline":
        view = _pdf_sidebar.SidebarView.OUTLINE;
        break;
  
      case "attachments":
        view = _pdf_sidebar.SidebarView.ATTACHMENTS;
        break;
  
      case "none":
        view = _pdf_sidebar.SidebarView.NONE;
        break;
  
      default:
        console.error('Invalid "pagemode" hash parameter: ' + mode);
        return;
    }
  
    PDFViewerApplication.pdfSidebar.switchView(view, true);
  }
  
  function webViewerNamedAction(evt) {
    const action = evt.action;
  
    switch (action) {
      case "GoToPage":
        PDFViewerApplication.appConfig.toolbar.pageNumber.select();
        break;
  
      case "Find":
        if (!PDFViewerApplication.supportsIntegratedFind) {
          PDFViewerApplication.findBar.toggle();
        }
  
        break;
    }
  }
  
  function webViewerPresentationModeChanged({
    active,
    switchInProgress
  }) {
    let state = _ui_utils.PresentationModeState.NORMAL;
  
    if (switchInProgress) {
      state = _ui_utils.PresentationModeState.CHANGING;
    } else if (active) {
      state = _ui_utils.PresentationModeState.FULLSCREEN;
    }
  
    PDFViewerApplication.pdfViewer.presentationModeState = state;
  }
  
  function webViewerSidebarViewChanged(evt) {
    PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled = PDFViewerApplication.pdfSidebar.isThumbnailViewVisible;
    const store = PDFViewerApplication.store;
  
    if (store && PDFViewerApplication.isInitialViewSet) {
      store.set("sidebarView", evt.view).catch(function () {});
    }
  }
  
  function webViewerUpdateViewarea(evt) {
    const location = evt.location,
          store = PDFViewerApplication.store;
  
    if (store && PDFViewerApplication.isInitialViewSet) {
      store.setMultiple({
        page: location.pageNumber,
        zoom: location.scale,
        scrollLeft: location.left,
        scrollTop: location.top,
        rotation: location.rotation
      }).catch(function () {});
    }
  
    const href = PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams);
    PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href;
    PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href = href;
    const currentPage = PDFViewerApplication.pdfViewer.getPageView(PDFViewerApplication.page - 1);
    const loading = currentPage.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED;
    PDFViewerApplication.toolbar.updateLoadingIndicatorState(loading);
  }
  
  function webViewerScrollModeChanged(evt) {
    const store = PDFViewerApplication.store;
  
    if (store && PDFViewerApplication.isInitialViewSet) {
      store.set("scrollMode", evt.mode).catch(function () {});
    }
  }
  
  function webViewerSpreadModeChanged(evt) {
    const store = PDFViewerApplication.store;
  
    if (store && PDFViewerApplication.isInitialViewSet) {
      store.set("spreadMode", evt.mode).catch(function () {});
    }
  }
  
  function webViewerResize() {
    const {
      pdfDocument,
      pdfViewer
    } = PDFViewerApplication;
  
    if (!pdfDocument) {
      return;
    }
  
    const currentScaleValue = pdfViewer.currentScaleValue;
  
    if (currentScaleValue === "auto" || currentScaleValue === "page-fit" || currentScaleValue === "page-width") {
      pdfViewer.currentScaleValue = currentScaleValue;
    }
  
    pdfViewer.update();
  }
  
  function webViewerHashchange(evt) {
    const hash = evt.hash;
  
    if (!hash) {
      return;
    }
  
    if (!PDFViewerApplication.isInitialViewSet) {
      PDFViewerApplication.initialBookmark = hash;
    } else if (!PDFViewerApplication.pdfHistory.popStateInProgress) {
      PDFViewerApplication.pdfLinkService.setHash(hash);
    }
  }
  
  let webViewerFileInputChange, webViewerOpenFile;
  {
    webViewerFileInputChange = function (evt) {
      if (PDFViewerApplication.pdfViewer && PDFViewerApplication.pdfViewer.isInPresentationMode) {
        return;
      }
  
      const file = evt.fileInput.files[0];
  
      if (!_app_options.AppOptions.get("disableCreateObjectURL")) {
        let url = URL.createObjectURL(file);
  
        if (file.name) {
          url = {
            url,
            originalUrl: file.name
          };
        }
  
        PDFViewerApplication.open(url);
      } else {
        PDFViewerApplication.setTitleUsingUrl(file.name);
        const fileReader = new FileReader();
  
        fileReader.onload = function webViewerChangeFileReaderOnload(event) {
          const buffer = event.target.result;
          PDFViewerApplication.open(new Uint8Array(buffer));
        };
  
        fileReader.readAsArrayBuffer(file);
      }
  
      const appConfig = PDFViewerApplication.appConfig;
      appConfig.toolbar.viewBookmark.setAttribute("hidden", "true");
      appConfig.secondaryToolbar.viewBookmarkButton.setAttribute("hidden", "true");
      appConfig.toolbar.download.setAttribute("hidden", "true");
      appConfig.secondaryToolbar.downloadButton.setAttribute("hidden", "true");
    };
  
    webViewerOpenFile = function (evt) {
      const openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
      document.getElementById(openFileInputName).click();
    };
  }
  
  function webViewerPresentationMode() {
    PDFViewerApplication.requestPresentationMode();
  }
  
  function webViewerPrint() {
    window.print();
  }
  
  function webViewerDownload() {
    PDFViewerApplication.download();
  }
  
  function webViewerFirstPage() {
    if (PDFViewerApplication.pdfDocument) {
      PDFViewerApplication.page = 1;
    }
  }
  
  function webViewerLastPage() {
    if (PDFViewerApplication.pdfDocument) {
      PDFViewerApplication.page = PDFViewerApplication.pagesCount;
    }
  }
  
  function webViewerNextPage() {
    PDFViewerApplication.page++;
  }
  
  function webViewerPreviousPage() {
    PDFViewerApplication.page--;
  }
  
  function webViewerZoomIn() {
    PDFViewerApplication.zoomIn();
  }
  
  function webViewerZoomOut() {
    PDFViewerApplication.zoomOut();
  }
  
  function webViewerZoomReset() {
    PDFViewerApplication.zoomReset();
  }
  
  function webViewerPageNumberChanged(evt) {
    const pdfViewer = PDFViewerApplication.pdfViewer;
  
    if (evt.value !== "") {
      pdfViewer.currentPageLabel = evt.value;
    }
  
    if (evt.value !== pdfViewer.currentPageNumber.toString() && evt.value !== pdfViewer.currentPageLabel) {
      PDFViewerApplication.toolbar.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel);
    }
  }
  
  function webViewerScaleChanged(evt) {
    PDFViewerApplication.pdfViewer.currentScaleValue = evt.value;
  }
  
  function webViewerRotateCw() {
    PDFViewerApplication.rotatePages(90);
  }
  
  function webViewerRotateCcw() {
    PDFViewerApplication.rotatePages(-90);
  }
  
  function webViewerSwitchScrollMode(evt) {
    PDFViewerApplication.pdfViewer.scrollMode = evt.mode;
  }
  
  function webViewerSwitchSpreadMode(evt) {
    PDFViewerApplication.pdfViewer.spreadMode = evt.mode;
  }
  
  function webViewerDocumentProperties() {
    PDFViewerApplication.pdfDocumentProperties.open();
  }
  
  function webViewerFind(evt) {
    PDFViewerApplication.findController.executeCommand("find" + evt.type, {
      query: evt.query,
      phraseSearch: evt.phraseSearch,
      caseSensitive: evt.caseSensitive,
      entireWord: evt.entireWord,
      highlightAll: evt.highlightAll,
      findPrevious: evt.findPrevious
    });
  }
  
  function webViewerFindFromUrlHash(evt) {
    PDFViewerApplication.findController.executeCommand("find", {
      query: evt.query,
      phraseSearch: evt.phraseSearch,
      caseSensitive: false,
      entireWord: false,
      highlightAll: true,
      findPrevious: false
    });
  }
  
  function webViewerUpdateFindMatchesCount({
    matchesCount
  }) {
    if (PDFViewerApplication.supportsIntegratedFind) {
      PDFViewerApplication.externalServices.updateFindMatchesCount(matchesCount);
    } else {
      PDFViewerApplication.findBar.updateResultsCount(matchesCount);
    }
  }
  
  function webViewerUpdateFindControlState({
    state,
    previous,
    matchesCount
  }) {
    if (PDFViewerApplication.supportsIntegratedFind) {
      PDFViewerApplication.externalServices.updateFindControlState({
        result: state,
        findPrevious: previous,
        matchesCount
      });
    } else {
      PDFViewerApplication.findBar.updateUIState(state, previous, matchesCount);
    }
  }
  
  function webViewerScaleChanging(evt) {
    PDFViewerApplication.toolbar.setPageScale(evt.presetValue, evt.scale);
    PDFViewerApplication.pdfViewer.update();
  }
  
  function webViewerRotationChanging(evt) {
    PDFViewerApplication.pdfThumbnailViewer.pagesRotation = evt.pagesRotation;
    PDFViewerApplication.forceRendering();
    PDFViewerApplication.pdfViewer.currentPageNumber = evt.pageNumber;
  }
  
  function webViewerPageChanging(evt) {
    const page = evt.pageNumber;
    PDFViewerApplication.toolbar.setPageNumber(page, evt.pageLabel || null);
    PDFViewerApplication.secondaryToolbar.setPageNumber(page);
  
    if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
      PDFViewerApplication.pdfThumbnailViewer.scrollThumbnailIntoView(page);
    }
  
    if (typeof Stats !== "undefined" && Stats.enabled) {
      const pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);
  
      if (pageView && pageView.stats) {
        Stats.add(page, pageView.stats);
      }
    }
  }
  
  function webViewerVisibilityChange(evt) {
    if (document.visibilityState === "visible") {
      setZoomDisabledTimeout();
    }
  }
  
  let zoomDisabledTimeout = null;
  
  function setZoomDisabledTimeout() {
    if (zoomDisabledTimeout) {
      clearTimeout(zoomDisabledTimeout);
    }
  
    zoomDisabledTimeout = setTimeout(function () {
      zoomDisabledTimeout = null;
    }, WHEEL_ZOOM_DISABLED_TIMEOUT);
  }
  
  function webViewerWheel(evt) {
    const {
      pdfViewer,
      supportedMouseWheelZoomModifierKeys
    } = PDFViewerApplication;
  
    if (pdfViewer.isInPresentationMode) {
      return;
    }
  
    if (evt.ctrlKey && supportedMouseWheelZoomModifierKeys.ctrlKey || evt.metaKey && supportedMouseWheelZoomModifierKeys.metaKey) {
      evt.preventDefault();
  
      if (zoomDisabledTimeout || document.visibilityState === "hidden") {
        return;
      }
  
      const previousScale = pdfViewer.currentScale;
      const delta = (0, _ui_utils.normalizeWheelEventDelta)(evt);
      const MOUSE_WHEEL_DELTA_PER_PAGE_SCALE = 3.0;
      const ticks = delta * MOUSE_WHEEL_DELTA_PER_PAGE_SCALE;
  
      if (ticks < 0) {
        PDFViewerApplication.zoomOut(-ticks);
      } else {
        PDFViewerApplication.zoomIn(ticks);
      }
  
      const currentScale = pdfViewer.currentScale;
  
      if (previousScale !== currentScale) {
        const scaleCorrectionFactor = currentScale / previousScale - 1;
        const rect = pdfViewer.container.getBoundingClientRect();
        const dx = evt.clientX - rect.left;
        const dy = evt.clientY - rect.top;
        pdfViewer.container.scrollLeft += dx * scaleCorrectionFactor;
        pdfViewer.container.scrollTop += dy * scaleCorrectionFactor;
      }
    } else {
      setZoomDisabledTimeout();
    }
  }
  
  function webViewerClick(evt) {
    if (!PDFViewerApplication.secondaryToolbar.isOpen) {
      return;
    }
  
    const appConfig = PDFViewerApplication.appConfig;
  
    if (PDFViewerApplication.pdfViewer.containsElement(evt.target) || appConfig.toolbar.container.contains(evt.target) && evt.target !== appConfig.secondaryToolbar.toggleButton) {
      PDFViewerApplication.secondaryToolbar.close();
    }
  }
  
  function webViewerKeyDown(evt) {
    if (PDFViewerApplication.overlayManager.active) {
      return;
    }
  
    let handled = false,
        ensureViewerFocused = false;
    const cmd = (evt.ctrlKey ? 1 : 0) | (evt.altKey ? 2 : 0) | (evt.shiftKey ? 4 : 0) | (evt.metaKey ? 8 : 0);
    const pdfViewer = PDFViewerApplication.pdfViewer;
    const isViewerInPresentationMode = pdfViewer && pdfViewer.isInPresentationMode;
  
    if (cmd === 1 || cmd === 8 || cmd === 5 || cmd === 12) {
      switch (evt.keyCode) {
        case 70:
          if (!PDFViewerApplication.supportsIntegratedFind) {
            PDFViewerApplication.findBar.open();
            handled = true;
          }
  
          break;
  
        case 71:
          if (!PDFViewerApplication.supportsIntegratedFind) {
            const findState = PDFViewerApplication.findController.state;
  
            if (findState) {
              PDFViewerApplication.findController.executeCommand("findagain", {
                query: findState.query,
                phraseSearch: findState.phraseSearch,
                caseSensitive: findState.caseSensitive,
                entireWord: findState.entireWord,
                highlightAll: findState.highlightAll,
                findPrevious: cmd === 5 || cmd === 12
              });
            }
  
            handled = true;
          }
  
          break;
  
        case 61:
        case 107:
        case 187:
        case 171:
          if (!isViewerInPresentationMode) {
            PDFViewerApplication.zoomIn();
          }
  
          handled = true;
          break;
  
        case 173:
        case 109:
        case 189:
          if (!isViewerInPresentationMode) {
            PDFViewerApplication.zoomOut();
          }
  
          handled = true;
          break;
  
        case 48:
        case 96:
          if (!isViewerInPresentationMode) {
            setTimeout(function () {
              PDFViewerApplication.zoomReset();
            });
            handled = false;
          }
  
          break;
  
        case 38:
          if (isViewerInPresentationMode || PDFViewerApplication.page > 1) {
            PDFViewerApplication.page = 1;
            handled = true;
            ensureViewerFocused = true;
          }
  
          break;
  
        case 40:
          if (isViewerInPresentationMode || PDFViewerApplication.page < PDFViewerApplication.pagesCount) {
            PDFViewerApplication.page = PDFViewerApplication.pagesCount;
            handled = true;
            ensureViewerFocused = true;
          }
  
          break;
      }
    }
  
    const {
      eventBus
    } = PDFViewerApplication;
  
    if (cmd === 1 || cmd === 8) {
      switch (evt.keyCode) {
        case 83:
          eventBus.dispatch("download", {
            source: window
          });
          handled = true;
          break;
  
        case 79:
          {
            eventBus.dispatch("openfile", {
              source: window
            });
            handled = true;
          }
          break;
      }
    }
  
    if (cmd === 3 || cmd === 10) {
      switch (evt.keyCode) {
        case 80:
          PDFViewerApplication.requestPresentationMode();
          handled = true;
          break;
  
        case 71:
          PDFViewerApplication.appConfig.toolbar.pageNumber.select();
          handled = true;
          break;
      }
    }
  
    if (handled) {
      if (ensureViewerFocused && !isViewerInPresentationMode) {
        pdfViewer.focus();
      }
  
      evt.preventDefault();
      return;
    }
  
    const curElement = document.activeElement || document.querySelector(":focus");
    const curElementTagName = curElement && curElement.tagName.toUpperCase();
  
    if (curElementTagName === "INPUT" || curElementTagName === "TEXTAREA" || curElementTagName === "SELECT" || curElement && curElement.isContentEditable) {
      if (evt.keyCode !== 27) {
        return;
      }
    }
  
    if (cmd === 0) {
      let turnPage = 0,
          turnOnlyIfPageFit = false;
  
      switch (evt.keyCode) {
        case 38:
        case 33:
          if (pdfViewer.isVerticalScrollbarEnabled) {
            turnOnlyIfPageFit = true;
          }
  
          turnPage = -1;
          break;
  
        case 8:
          if (!isViewerInPresentationMode) {
            turnOnlyIfPageFit = true;
          }
  
          turnPage = -1;
          break;
  
        case 37:
          if (pdfViewer.isHorizontalScrollbarEnabled) {
            turnOnlyIfPageFit = true;
          }
  
        case 75:
        case 80:
          turnPage = -1;
          break;
  
        case 27:
          if (PDFViewerApplication.secondaryToolbar.isOpen) {
            PDFViewerApplication.secondaryToolbar.close();
            handled = true;
          }
  
          if (!PDFViewerApplication.supportsIntegratedFind && PDFViewerApplication.findBar.opened) {
            PDFViewerApplication.findBar.close();
            handled = true;
          }
  
          break;
  
        case 40:
        case 34:
          if (pdfViewer.isVerticalScrollbarEnabled) {
            turnOnlyIfPageFit = true;
          }
  
          turnPage = 1;
          break;
  
        case 13:
        case 32:
          if (!isViewerInPresentationMode) {
            turnOnlyIfPageFit = true;
          }
  
          turnPage = 1;
          break;
  
        case 39:
          if (pdfViewer.isHorizontalScrollbarEnabled) {
            turnOnlyIfPageFit = true;
          }
  
        case 74:
        case 78:
          turnPage = 1;
          break;
  
        case 36:
          if (isViewerInPresentationMode || PDFViewerApplication.page > 1) {
            PDFViewerApplication.page = 1;
            handled = true;
            ensureViewerFocused = true;
          }
  
          break;
  
        case 35:
          if (isViewerInPresentationMode || PDFViewerApplication.page < PDFViewerApplication.pagesCount) {
            PDFViewerApplication.page = PDFViewerApplication.pagesCount;
            handled = true;
            ensureViewerFocused = true;
          }
  
          break;
  
        case 83:
          PDFViewerApplication.pdfCursorTools.switchTool(_pdf_cursor_tools.CursorTool.SELECT);
          break;
  
        case 72:
          PDFViewerApplication.pdfCursorTools.switchTool(_pdf_cursor_tools.CursorTool.HAND);
          break;
  
        case 82:
          PDFViewerApplication.rotatePages(90);
          break;
  
        case 115:
          PDFViewerApplication.pdfSidebar.toggle();
          break;
      }
  
      if (turnPage !== 0 && (!turnOnlyIfPageFit || pdfViewer.currentScaleValue === "page-fit")) {
        if (turnPage > 0) {
          if (PDFViewerApplication.page < PDFViewerApplication.pagesCount) {
            PDFViewerApplication.page++;
          }
        } else {
          if (PDFViewerApplication.page > 1) {
            PDFViewerApplication.page--;
          }
        }
  
        handled = true;
      }
    }
  
    if (cmd === 4) {
      switch (evt.keyCode) {
        case 13:
        case 32:
          if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== "page-fit") {
            break;
          }
  
          if (PDFViewerApplication.page > 1) {
            PDFViewerApplication.page--;
          }
  
          handled = true;
          break;
  
        case 82:
          PDFViewerApplication.rotatePages(-90);
          break;
      }
    }
  
    if (!handled && !isViewerInPresentationMode) {
      if (evt.keyCode >= 33 && evt.keyCode <= 40 || evt.keyCode === 32 && curElementTagName !== "BUTTON") {
        ensureViewerFocused = true;
      }
    }
  
    if (ensureViewerFocused && !pdfViewer.containsElement(curElement)) {
      pdfViewer.focus();
    }
  
    if (handled) {
      evt.preventDefault();
    }
  }
  
  function apiPageLayoutToSpreadMode(layout) {
    switch (layout) {
      case "SinglePage":
      case "OneColumn":
        return _ui_utils.SpreadMode.NONE;
  
      case "TwoColumnLeft":
      case "TwoPageLeft":
        return _ui_utils.SpreadMode.ODD;
  
      case "TwoColumnRight":
      case "TwoPageRight":
        return _ui_utils.SpreadMode.EVEN;
    }
  
    return _ui_utils.SpreadMode.NONE;
  }
  
  function apiPageModeToSidebarView(mode) {
    switch (mode) {
      case "UseNone":
        return _pdf_sidebar.SidebarView.NONE;
  
      case "UseThumbs":
        return _pdf_sidebar.SidebarView.THUMBS;
  
      case "UseOutlines":
        return _pdf_sidebar.SidebarView.OUTLINE;
  
      case "UseAttachments":
        return _pdf_sidebar.SidebarView.ATTACHMENTS;
  
      case "UseOC":
    }
  
    return _pdf_sidebar.SidebarView.NONE;
  }
  
  const PDFPrintServiceFactory = {
    instance: {
      supportsPrinting: false,
  
      createPrintService() {
        throw new Error("Not implemented: createPrintService");
      }
  
    }
  };
  exports.PDFPrintServiceFactory = PDFPrintServiceFactory;
  
  /***/ }),
  /* 2 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.isValidRotation = isValidRotation;
  exports.isValidScrollMode = isValidScrollMode;
  exports.isValidSpreadMode = isValidSpreadMode;
  exports.isPortraitOrientation = isPortraitOrientation;
  exports.clamp = clamp;
  exports.getPDFFileNameFromURL = getPDFFileNameFromURL;
  exports.noContextMenuHandler = noContextMenuHandler;
  exports.parseQueryString = parseQueryString;
  exports.backtrackBeforeAllVisibleElements = backtrackBeforeAllVisibleElements;
  exports.getVisibleElements = getVisibleElements;
  exports.roundToDivide = roundToDivide;
  exports.getPageSizeInches = getPageSizeInches;
  exports.approximateFraction = approximateFraction;
  exports.getOutputScale = getOutputScale;
  exports.scrollIntoView = scrollIntoView;
  exports.watchScroll = watchScroll;
  exports.binarySearchFirstItem = binarySearchFirstItem;
  exports.normalizeWheelEventDelta = normalizeWheelEventDelta;
  exports.waitOnEventOrTimeout = waitOnEventOrTimeout;
  exports.moveToEndOfArray = moveToEndOfArray;
  exports.WaitOnType = exports.animationStarted = exports.ProgressBar = exports.EventBus = exports.NullL10n = exports.SpreadMode = exports.ScrollMode = exports.TextLayerMode = exports.RendererType = exports.PresentationModeState = exports.VERTICAL_PADDING = exports.SCROLLBAR_PADDING = exports.MAX_AUTO_SCALE = exports.UNKNOWN_SCALE = exports.MAX_SCALE = exports.MIN_SCALE = exports.DEFAULT_SCALE = exports.DEFAULT_SCALE_VALUE = exports.CSS_UNITS = exports.AutoPrintRegExp = void 0;
  const CSS_UNITS = 96.0 / 72.0;
  exports.CSS_UNITS = CSS_UNITS;
  const DEFAULT_SCALE_VALUE = "auto";
  exports.DEFAULT_SCALE_VALUE = DEFAULT_SCALE_VALUE;
  const DEFAULT_SCALE = 1.0;
  exports.DEFAULT_SCALE = DEFAULT_SCALE;
  const MIN_SCALE = 0.1;
  exports.MIN_SCALE = MIN_SCALE;
  const MAX_SCALE = 10.0;
  exports.MAX_SCALE = MAX_SCALE;
  const UNKNOWN_SCALE = 0;
  exports.UNKNOWN_SCALE = UNKNOWN_SCALE;
  const MAX_AUTO_SCALE = 1.25;
  exports.MAX_AUTO_SCALE = MAX_AUTO_SCALE;
  const SCROLLBAR_PADDING = 40;
  exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
  const VERTICAL_PADDING = 5;
  exports.VERTICAL_PADDING = VERTICAL_PADDING;
  const PresentationModeState = {
    UNKNOWN: 0,
    NORMAL: 1,
    CHANGING: 2,
    FULLSCREEN: 3
  };
  exports.PresentationModeState = PresentationModeState;
  const RendererType = {
    CANVAS: "canvas",
    SVG: "svg"
  };
  exports.RendererType = RendererType;
  const TextLayerMode = {
    DISABLE: 0,
    ENABLE: 1,
    ENABLE_ENHANCE: 2
  };
  exports.TextLayerMode = TextLayerMode;
  const ScrollMode = {
    UNKNOWN: -1,
    VERTICAL: 0,
    HORIZONTAL: 1,
    WRAPPED: 2
  };
  exports.ScrollMode = ScrollMode;
  const SpreadMode = {
    UNKNOWN: -1,
    NONE: 0,
    ODD: 1,
    EVEN: 2
  };
  exports.SpreadMode = SpreadMode;
  const AutoPrintRegExp = /\bprint\s*\(/;
  exports.AutoPrintRegExp = AutoPrintRegExp;
  
  function formatL10nValue(text, args) {
    if (!args) {
      return text;
    }
  
    return text.replace(/\{\{\s*(\w+)\s*\}\}/g, (all, name) => {
      return name in args ? args[name] : "{{" + name + "}}";
    });
  }
  
  const NullL10n = {
    async getLanguage() {
      return "en-us";
    },
  
    async getDirection() {
      return "ltr";
    },
  
    async get(property, args, fallback) {
      return formatL10nValue(fallback, args);
    },
  
    async translate(element) {}
  
  };
  exports.NullL10n = NullL10n;
  
  function getOutputScale(ctx) {
    const devicePixelRatio = window.devicePixelRatio || 1;
    const backingStoreRatio = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
    const pixelRatio = devicePixelRatio / backingStoreRatio;
    return {
      sx: pixelRatio,
      sy: pixelRatio,
      scaled: pixelRatio !== 1
    };
  }
  
  function scrollIntoView(element, spot, skipOverflowHiddenElements = false) {
    let parent = element.offsetParent;
  
    if (!parent) {
      console.error("offsetParent is not set -- cannot scroll");
      return;
    }
  
    let offsetY = element.offsetTop + element.clientTop;
    let offsetX = element.offsetLeft + element.clientLeft;
  
    while (parent.clientHeight === parent.scrollHeight && parent.clientWidth === parent.scrollWidth || skipOverflowHiddenElements && getComputedStyle(parent).overflow === "hidden") {
      if (parent.dataset._scaleY) {
        offsetY /= parent.dataset._scaleY;
        offsetX /= parent.dataset._scaleX;
      }
  
      offsetY += parent.offsetTop;
      offsetX += parent.offsetLeft;
      parent = parent.offsetParent;
  
      if (!parent) {
        return;
      }
    }
  
    if (spot) {
      if (spot.top !== undefined) {
        offsetY += spot.top;
      }
  
      if (spot.left !== undefined) {
        offsetX += spot.left;
        parent.scrollLeft = offsetX;
      }
    }
  
    parent.scrollTop = offsetY;
  }
  
  function watchScroll(viewAreaElement, callback) {
    const debounceScroll = function (evt) {
      if (rAF) {
        return;
      }
  
      rAF = window.requestAnimationFrame(function viewAreaElementScrolled() {
        rAF = null;
        const currentX = viewAreaElement.scrollLeft;
        const lastX = state.lastX;
  
        if (currentX !== lastX) {
          state.right = currentX > lastX;
        }
  
        state.lastX = currentX;
        const currentY = viewAreaElement.scrollTop;
        const lastY = state.lastY;
  
        if (currentY !== lastY) {
          state.down = currentY > lastY;
        }
  
        state.lastY = currentY;
        callback(state);
      });
    };
  
    const state = {
      right: true,
      down: true,
      lastX: viewAreaElement.scrollLeft,
      lastY: viewAreaElement.scrollTop,
      _eventHandler: debounceScroll
    };
    let rAF = null;
    viewAreaElement.addEventListener("scroll", debounceScroll, true);
    return state;
  }
  
  function parseQueryString(query) {
    const parts = query.split("&");
    const params = Object.create(null);
  
    for (let i = 0, ii = parts.length; i < ii; ++i) {
      const param = parts[i].split("=");
      const key = param[0].toLowerCase();
      const value = param.length > 1 ? param[1] : null;
      params[decodeURIComponent(key)] = decodeURIComponent(value);
    }
  
    return params;
  }
  
  function binarySearchFirstItem(items, condition) {
    let minIndex = 0;
    let maxIndex = items.length - 1;
  
    if (maxIndex < 0 || !condition(items[maxIndex])) {
      return items.length;
    }
  
    if (condition(items[minIndex])) {
      return minIndex;
    }
  
    while (minIndex < maxIndex) {
      const currentIndex = minIndex + maxIndex >> 1;
      const currentItem = items[currentIndex];
  
      if (condition(currentItem)) {
        maxIndex = currentIndex;
      } else {
        minIndex = currentIndex + 1;
      }
    }
  
    return minIndex;
  }
  
  function approximateFraction(x) {
    if (Math.floor(x) === x) {
      return [x, 1];
    }
  
    const xinv = 1 / x;
    const limit = 8;
  
    if (xinv > limit) {
      return [1, limit];
    } else if (Math.floor(xinv) === xinv) {
      return [1, xinv];
    }
  
    const x_ = x > 1 ? xinv : x;
    let a = 0,
        b = 1,
        c = 1,
        d = 1;
  
    while (true) {
      const p = a + c,
            q = b + d;
  
      if (q > limit) {
        break;
      }
  
      if (x_ <= p / q) {
        c = p;
        d = q;
      } else {
        a = p;
        b = q;
      }
    }
  
    let result;
  
    if (x_ - a / b < c / d - x_) {
      result = x_ === x ? [a, b] : [b, a];
    } else {
      result = x_ === x ? [c, d] : [d, c];
    }
  
    return result;
  }
  
  function roundToDivide(x, div) {
    const r = x % div;
    return r === 0 ? x : Math.round(x - r + div);
  }
  
  function getPageSizeInches({
    view,
    userUnit,
    rotate
  }) {
    const [x1, y1, x2, y2] = view;
    const changeOrientation = rotate % 180 !== 0;
    const width = (x2 - x1) / 72 * userUnit;
    const height = (y2 - y1) / 72 * userUnit;
    return {
      width: changeOrientation ? height : width,
      height: changeOrientation ? width : height
    };
  }
  
  function backtrackBeforeAllVisibleElements(index, views, top) {
    if (index < 2) {
      return index;
    }
  
    let elt = views[index].div;
    let pageTop = elt.offsetTop + elt.clientTop;
  
    if (pageTop >= top) {
      elt = views[index - 1].div;
      pageTop = elt.offsetTop + elt.clientTop;
    }
  
    for (let i = index - 2; i >= 0; --i) {
      elt = views[i].div;
  
      if (elt.offsetTop + elt.clientTop + elt.clientHeight <= pageTop) {
        break;
      }
  
      index = i;
    }
  
    return index;
  }
  
  function getVisibleElements(scrollEl, views, sortByVisibility = false, horizontal = false) {
    const top = scrollEl.scrollTop,
          bottom = top + scrollEl.clientHeight;
    const left = scrollEl.scrollLeft,
          right = left + scrollEl.clientWidth;
  
    function isElementBottomAfterViewTop(view) {
      const element = view.div;
      const elementBottom = element.offsetTop + element.clientTop + element.clientHeight;
      return elementBottom > top;
    }
  
    function isElementRightAfterViewLeft(view) {
      const element = view.div;
      const elementRight = element.offsetLeft + element.clientLeft + element.clientWidth;
      return elementRight > left;
    }
  
    const visible = [],
          numViews = views.length;
    let firstVisibleElementInd = numViews === 0 ? 0 : binarySearchFirstItem(views, horizontal ? isElementRightAfterViewLeft : isElementBottomAfterViewTop);
  
    if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) {
      firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top);
    }
  
    let lastEdge = horizontal ? right : -1;
  
    for (let i = firstVisibleElementInd; i < numViews; i++) {
      const view = views[i],
            element = view.div;
      const currentWidth = element.offsetLeft + element.clientLeft;
      const currentHeight = element.offsetTop + element.clientTop;
      const viewWidth = element.clientWidth,
            viewHeight = element.clientHeight;
      const viewRight = currentWidth + viewWidth;
      const viewBottom = currentHeight + viewHeight;
  
      if (lastEdge === -1) {
        if (viewBottom >= bottom) {
          lastEdge = viewBottom;
        }
      } else if ((horizontal ? currentWidth : currentHeight) > lastEdge) {
        break;
      }
  
      if (viewBottom <= top || currentHeight >= bottom || viewRight <= left || currentWidth >= right) {
        continue;
      }
  
      const hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, viewBottom - bottom);
      const hiddenWidth = Math.max(0, left - currentWidth) + Math.max(0, viewRight - right);
      const percent = (viewHeight - hiddenHeight) * (viewWidth - hiddenWidth) * 100 / viewHeight / viewWidth | 0;
      visible.push({
        id: view.id,
        x: currentWidth,
        y: currentHeight,
        view,
        percent
      });
    }
  
    const first = visible[0],
          last = visible[visible.length - 1];
  
    if (sortByVisibility) {
      visible.sort(function (a, b) {
        const pc = a.percent - b.percent;
  
        if (Math.abs(pc) > 0.001) {
          return -pc;
        }
  
        return a.id - b.id;
      });
    }
  
    return {
      first,
      last,
      views: visible
    };
  }
  
  function noContextMenuHandler(evt) {
    evt.preventDefault();
  }
  
  function isDataSchema(url) {
    let i = 0;
    const ii = url.length;
  
    while (i < ii && url[i].trim() === "") {
      i++;
    }
  
    return url.substring(i, i + 5).toLowerCase() === "data:";
  }
  
  function getPDFFileNameFromURL(url, defaultFilename = "document.pdf") {
    if (typeof url !== "string") {
      return defaultFilename;
    }
  
    if (isDataSchema(url)) {
      console.warn("getPDFFileNameFromURL: " + 'ignoring "data:" URL for performance reasons.');
      return defaultFilename;
    }
  
    const reURI = /^(?:(?:[^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
    const reFilename = /[^\/?#=]+\.pdf\b(?!.*\.pdf\b)/i;
    const splitURI = reURI.exec(url);
    let suggestedFilename = reFilename.exec(splitURI[1]) || reFilename.exec(splitURI[2]) || reFilename.exec(splitURI[3]);
  
    if (suggestedFilename) {
      suggestedFilename = suggestedFilename[0];
  
      if (suggestedFilename.includes("%")) {
        try {
          suggestedFilename = reFilename.exec(decodeURIComponent(suggestedFilename))[0];
        } catch (ex) {}
      }
    }
  
    return suggestedFilename || defaultFilename;
  }
  
  function normalizeWheelEventDelta(evt) {
    let delta = Math.sqrt(evt.deltaX * evt.deltaX + evt.deltaY * evt.deltaY);
    const angle = Math.atan2(evt.deltaY, evt.deltaX);
  
    if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
      delta = -delta;
    }
  
    const MOUSE_DOM_DELTA_PIXEL_MODE = 0;
    const MOUSE_DOM_DELTA_LINE_MODE = 1;
    const MOUSE_PIXELS_PER_LINE = 30;
    const MOUSE_LINES_PER_PAGE = 30;
  
    if (evt.deltaMode === MOUSE_DOM_DELTA_PIXEL_MODE) {
      delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE;
    } else if (evt.deltaMode === MOUSE_DOM_DELTA_LINE_MODE) {
      delta /= MOUSE_LINES_PER_PAGE;
    }
  
    return delta;
  }
  
  function isValidRotation(angle) {
    return Number.isInteger(angle) && angle % 90 === 0;
  }
  
  function isValidScrollMode(mode) {
    return Number.isInteger(mode) && Object.values(ScrollMode).includes(mode) && mode !== ScrollMode.UNKNOWN;
  }
  
  function isValidSpreadMode(mode) {
    return Number.isInteger(mode) && Object.values(SpreadMode).includes(mode) && mode !== SpreadMode.UNKNOWN;
  }
  
  function isPortraitOrientation(size) {
    return size.width <= size.height;
  }
  
  const WaitOnType = {
    EVENT: "event",
    TIMEOUT: "timeout"
  };
  exports.WaitOnType = WaitOnType;
  
  function waitOnEventOrTimeout({
    target,
    name,
    delay = 0
  }) {
    return new Promise(function (resolve, reject) {
      if (typeof target !== "object" || !(name && typeof name === "string") || !(Number.isInteger(delay) && delay >= 0)) {
        throw new Error("waitOnEventOrTimeout - invalid parameters.");
      }
  
      function handler(type) {
        if (target instanceof EventBus) {
          target._off(name, eventHandler);
        } else {
          target.removeEventListener(name, eventHandler);
        }
  
        if (timeout) {
          clearTimeout(timeout);
        }
  
        resolve(type);
      }
  
      const eventHandler = handler.bind(null, WaitOnType.EVENT);
  
      if (target instanceof EventBus) {
        target._on(name, eventHandler);
      } else {
        target.addEventListener(name, eventHandler);
      }
  
      const timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
      const timeout = setTimeout(timeoutHandler, delay);
    });
  }
  
  const animationStarted = new Promise(function (resolve) {
    window.requestAnimationFrame(resolve);
  });
  exports.animationStarted = animationStarted;
  
  function dispatchDOMEvent(eventName, args = null) {
    throw new Error("Not implemented: dispatchDOMEvent");
  }
  
  class EventBus {
    constructor(options) {
      this._listeners = Object.create(null);
    }
  
    on(eventName, listener) {
      this._on(eventName, listener, {
        external: true
      });
    }
  
    off(eventName, listener) {
      this._off(eventName, listener, {
        external: true
      });
    }
  
    dispatch(eventName) {
      const eventListeners = this._listeners[eventName];
  
      if (!eventListeners || eventListeners.length === 0) {
        return;
      }
  
      const args = Array.prototype.slice.call(arguments, 1);
      let externalListeners;
      eventListeners.slice(0).forEach(function ({
        listener,
        external
      }) {
        if (external) {
          if (!externalListeners) {
            externalListeners = [];
          }
  
          externalListeners.push(listener);
          return;
        }
  
        listener.apply(null, args);
      });
  
      if (externalListeners) {
        externalListeners.forEach(function (listener) {
          listener.apply(null, args);
        });
        externalListeners = null;
      }
    }
  
    _on(eventName, listener, options = null) {
      let eventListeners = this._listeners[eventName];
  
      if (!eventListeners) {
        this._listeners[eventName] = eventListeners = [];
      }
  
      eventListeners.push({
        listener,
        external: (options && options.external) === true
      });
    }
  
    _off(eventName, listener, options = null) {
      const eventListeners = this._listeners[eventName];
  
      if (!eventListeners) {
        return;
      }
  
      for (let i = 0, ii = eventListeners.length; i < ii; i++) {
        if (eventListeners[i].listener === listener) {
          eventListeners.splice(i, 1);
          return;
        }
      }
    }
  
  }
  
  exports.EventBus = EventBus;
  
  function clamp(v, min, max) {
    return Math.min(Math.max(v, min), max);
  }
  
  class ProgressBar {
    constructor(id, {
      height,
      width,
      units
    } = {}) {
      this.visible = true;
      this.div = document.querySelector(id + " .progress");
      this.bar = this.div.parentNode;
      this.height = height || 100;
      this.width = width || 100;
      this.units = units || "%";
      this.div.style.height = this.height + this.units;
      this.percent = 0;
    }
  
    _updateBar() {
      if (this._indeterminate) {
        this.div.classList.add("indeterminate");
        this.div.style.width = this.width + this.units;
        return;
      }
  
      this.div.classList.remove("indeterminate");
      const progressSize = this.width * this._percent / 100;
      this.div.style.width = progressSize + this.units;
    }
  
    get percent() {
      return this._percent;
    }
  
    set percent(val) {
      this._indeterminate = isNaN(val);
      this._percent = clamp(val, 0, 100);
  
      this._updateBar();
    }
  
    setWidth(viewer) {
      if (!viewer) {
        return;
      }
  
      const container = viewer.parentNode;
      const scrollbarWidth = container.offsetWidth - viewer.offsetWidth;
  
      if (scrollbarWidth > 0) {
        this.bar.style.width = `calc(100% - ${scrollbarWidth}px)`;
      }
    }
  
    hide() {
      if (!this.visible) {
        return;
      }
  
      this.visible = false;
      this.bar.classList.add("hidden");
      document.body.classList.remove("loadingInProgress");
    }
  
    show() {
      if (this.visible) {
        return;
      }
  
      this.visible = true;
      document.body.classList.add("loadingInProgress");
      this.bar.classList.remove("hidden");
    }
  
  }
  
  exports.ProgressBar = ProgressBar;
  
  function moveToEndOfArray(arr, condition) {
    const moved = [],
          len = arr.length;
    let write = 0;
  
    for (let read = 0; read < len; ++read) {
      if (condition(arr[read])) {
        moved.push(arr[read]);
      } else {
        arr[write] = arr[read];
        ++write;
      }
    }
  
    for (let read = 0; write < len; ++read, ++write) {
      arr[write] = moved[read];
    }
  }
  
  /***/ }),
  /* 3 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.OptionKind = exports.AppOptions = void 0;
  
  var _viewer_compatibility = __webpack_require__(4);
  
  const OptionKind = {
    VIEWER: 0x02,
    API: 0x04,
    WORKER: 0x08,
    PREFERENCE: 0x80
  };
  exports.OptionKind = OptionKind;
  const defaultOptions = {
    cursorToolOnLoad: {
      value: 0,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    defaultUrl: {
      value: "8_tom.pdf",
      kind: OptionKind.VIEWER
    },
    defaultZoomValue: {
      value: "",
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    disableCreateObjectURL: {
      value: false,
      compatibility: _viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL,
      kind: OptionKind.VIEWER
    },
    disableHistory: {
      value: false,
      kind: OptionKind.VIEWER
    },
    disablePageLabels: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    enablePermissions: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    enablePrintAutoRotate: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    enableWebGL: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    externalLinkRel: {
      value: "noopener noreferrer nofollow",
      kind: OptionKind.VIEWER
    },
    externalLinkTarget: {
      value: 0,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    historyUpdateUrl: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    ignoreDestinationZoom: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    imageResourcesPath: {
      value: "./images/",
      kind: OptionKind.VIEWER
    },
    maxCanvasPixels: {
      value: 16777216,
      compatibility: _viewer_compatibility.viewerCompatibilityParams.maxCanvasPixels,
      kind: OptionKind.VIEWER
    },
    pdfBugEnabled: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    printResolution: {
      value: 150,
      kind: OptionKind.VIEWER
    },
    renderer: {
      value: "canvas",
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    renderInteractiveForms: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    sidebarViewOnLoad: {
      value: -1,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    scrollModeOnLoad: {
      value: -1,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    spreadModeOnLoad: {
      value: -1,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    textLayerMode: {
      value: 1,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    useOnlyCssZoom: {
      value: false,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    viewOnLoad: {
      value: 0,
      kind: OptionKind.VIEWER + OptionKind.PREFERENCE
    },
    cMapPacked: {
      value: true,
      kind: OptionKind.API
    },
    cMapUrl: {
      value: "../web/cmaps/",
      kind: OptionKind.API
    },
    disableAutoFetch: {
      value: false,
      kind: OptionKind.API + OptionKind.PREFERENCE
    },
    disableFontFace: {
      value: false,
      kind: OptionKind.API + OptionKind.PREFERENCE
    },
    disableRange: {
      value: false,
      kind: OptionKind.API + OptionKind.PREFERENCE
    },
    disableStream: {
      value: false,
      kind: OptionKind.API + OptionKind.PREFERENCE
    },
    docBaseUrl: {
      value: "",
      kind: OptionKind.API
    },
    fontExtraProperties: {
      value: false,
      kind: OptionKind.API
    },
    isEvalSupported: {
      value: true,
      kind: OptionKind.API
    },
    maxImageSize: {
      value: -1,
      kind: OptionKind.API
    },
    pdfBug: {
      value: false,
      kind: OptionKind.API
    },
    verbosity: {
      value: 1,
      kind: OptionKind.API
    },
    workerPort: {
      value: null,
      kind: OptionKind.WORKER
    },
    workerSrc: {
      value: "../build/pdf.worker.js",
      kind: OptionKind.WORKER
    }
  };
  {
    defaultOptions.disablePreferences = {
      value: false,
      kind: OptionKind.VIEWER
    };
    defaultOptions.locale = {
      value: typeof navigator !== "undefined" ? navigator.language : "en-US",
      kind: OptionKind.VIEWER
    };
  }
  const userOptions = Object.create(null);
  
  class AppOptions {
    constructor() {
      throw new Error("Cannot initialize AppOptions.");
    }
  
    static get(name) {
      const userOption = userOptions[name];
  
      if (userOption !== undefined) {
        return userOption;
      }
  
      const defaultOption = defaultOptions[name];
  
      if (defaultOption !== undefined) {
        return defaultOption.compatibility || defaultOption.value;
      }
  
      return undefined;
    }
  
    static getAll(kind = null) {
      const options = Object.create(null);
  
      for (const name in defaultOptions) {
        const defaultOption = defaultOptions[name];
  
        if (kind) {
          if ((kind & defaultOption.kind) === 0) {
            continue;
          }
  
          if (kind === OptionKind.PREFERENCE) {
            const value = defaultOption.value,
                  valueType = typeof value;
  
            if (valueType === "boolean" || valueType === "string" || valueType === "number" && Number.isInteger(value)) {
              options[name] = value;
              continue;
            }
  
            throw new Error(`Invalid type for preference: ${name}`);
          }
        }
  
        const userOption = userOptions[name];
        options[name] = userOption !== undefined ? userOption : defaultOption.compatibility || defaultOption.value;
      }
  
      return options;
    }
  
    static set(name, value) {
      userOptions[name] = value;
    }
  
    static remove(name) {
      delete userOptions[name];
    }
  
  }
  
  exports.AppOptions = AppOptions;
  
  /***/ }),
  /* 4 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.viewerCompatibilityParams = void 0;
  const compatibilityParams = Object.create(null);
  {
    const userAgent = typeof navigator !== "undefined" && navigator.userAgent || "";
    const platform = typeof navigator !== "undefined" && navigator.platform || "";
    const maxTouchPoints = typeof navigator !== "undefined" && navigator.maxTouchPoints || 1;
    const isAndroid = /Android/.test(userAgent);
    const isIE = /Trident/.test(userAgent);
    const isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) || platform === "MacIntel" && maxTouchPoints > 1;
    const isIOSChrome = /CriOS/.test(userAgent);
  
    (function checkOnBlobSupport() {
      if (isIE || isIOSChrome) {
        compatibilityParams.disableCreateObjectURL = true;
      }
    })();
  
    (function checkCanvasSizeLimitation() {
      if (isIOS || isAndroid) {
        compatibilityParams.maxCanvasPixels = 5242880;
      }
    })();
  }
  const viewerCompatibilityParams = Object.freeze(compatibilityParams);
  exports.viewerCompatibilityParams = viewerCompatibilityParams;
  
  /***/ }),
  /* 5 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  let pdfjsLib;
  
  if (typeof window !== "undefined" && window["pdfjs-dist/build/pdf"]) {
    pdfjsLib = window["pdfjs-dist/build/pdf"];
  } else {
    pdfjsLib = require("../build/pdf.js");
  }
  
  module.exports = pdfjsLib;
  
  /***/ }),
  /* 6 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFCursorTools = exports.CursorTool = void 0;
  
  var _grab_to_pan = __webpack_require__(7);
  
  const CursorTool = {
    SELECT: 0,
    HAND: 1,
    ZOOM: 2
  };
  exports.CursorTool = CursorTool;
  
  class PDFCursorTools {
    constructor({
      container,
      eventBus,
      cursorToolOnLoad = CursorTool.SELECT
    }) {
      this.container = container;
      this.eventBus = eventBus;
      this.active = CursorTool.SELECT;
      this.activeBeforePresentationMode = null;
      this.handTool = new _grab_to_pan.GrabToPan({
        element: this.container
      });
  
      this._addEventListeners();
  
      Promise.resolve().then(() => {
        this.switchTool(cursorToolOnLoad);
      });
    }
  
    get activeTool() {
      return this.active;
    }
  
    switchTool(tool) {
      if (this.activeBeforePresentationMode !== null) {
        return;
      }
  
      if (tool === this.active) {
        return;
      }
  
      const disableActiveTool = () => {
        switch (this.active) {
          case CursorTool.SELECT:
            break;
  
          case CursorTool.HAND:
            this.handTool.deactivate();
            break;
  
          case CursorTool.ZOOM:
        }
      };
  
      switch (tool) {
        case CursorTool.SELECT:
          disableActiveTool();
          break;
  
        case CursorTool.HAND:
          disableActiveTool();
          this.handTool.activate();
          break;
  
        case CursorTool.ZOOM:
        default:
          console.error(`switchTool: "${tool}" is an unsupported value.`);
          return;
      }
  
      this.active = tool;
  
      this._dispatchEvent();
    }
  
    _dispatchEvent() {
      this.eventBus.dispatch("cursortoolchanged", {
        source: this,
        tool: this.active
      });
    }
  
    _addEventListeners() {
      this.eventBus._on("switchcursortool", evt => {
        this.switchTool(evt.tool);
      });
  
      this.eventBus._on("presentationmodechanged", evt => {
        if (evt.switchInProgress) {
          return;
        }
  
        let previouslyActive;
  
        if (evt.active) {
          previouslyActive = this.active;
          this.switchTool(CursorTool.SELECT);
          this.activeBeforePresentationMode = previouslyActive;
        } else {
          previouslyActive = this.activeBeforePresentationMode;
          this.activeBeforePresentationMode = null;
          this.switchTool(previouslyActive);
        }
      });
    }
  
  }
  
  exports.PDFCursorTools = PDFCursorTools;
  
  /***/ }),
  /* 7 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.GrabToPan = GrabToPan;
  
  function GrabToPan(options) {
    this.element = options.element;
    this.document = options.element.ownerDocument;
  
    if (typeof options.ignoreTarget === "function") {
      this.ignoreTarget = options.ignoreTarget;
    }
  
    this.onActiveChanged = options.onActiveChanged;
    this.activate = this.activate.bind(this);
    this.deactivate = this.deactivate.bind(this);
    this.toggle = this.toggle.bind(this);
    this._onmousedown = this._onmousedown.bind(this);
    this._onmousemove = this._onmousemove.bind(this);
    this._endPan = this._endPan.bind(this);
    const overlay = this.overlay = document.createElement("div");
    overlay.className = "grab-to-pan-grabbing";
  }
  
  GrabToPan.prototype = {
    CSS_CLASS_GRAB: "grab-to-pan-grab",
    activate: function GrabToPan_activate() {
      if (!this.active) {
        this.active = true;
        this.element.addEventListener("mousedown", this._onmousedown, true);
        this.element.classList.add(this.CSS_CLASS_GRAB);
  
        if (this.onActiveChanged) {
          this.onActiveChanged(true);
        }
      }
    },
    deactivate: function GrabToPan_deactivate() {
      if (this.active) {
        this.active = false;
        this.element.removeEventListener("mousedown", this._onmousedown, true);
  
        this._endPan();
  
        this.element.classList.remove(this.CSS_CLASS_GRAB);
  
        if (this.onActiveChanged) {
          this.onActiveChanged(false);
        }
      }
    },
    toggle: function GrabToPan_toggle() {
      if (this.active) {
        this.deactivate();
      } else {
        this.activate();
      }
    },
    ignoreTarget: function GrabToPan_ignoreTarget(node) {
      return node[matchesSelector]("a[href], a[href] *, input, textarea, button, button *, select, option");
    },
    _onmousedown: function GrabToPan__onmousedown(event) {
      if (event.button !== 0 || this.ignoreTarget(event.target)) {
        return;
      }
  
      if (event.originalTarget) {
        try {
          event.originalTarget.tagName;
        } catch (e) {
          return;
        }
      }
  
      this.scrollLeftStart = this.element.scrollLeft;
      this.scrollTopStart = this.element.scrollTop;
      this.clientXStart = event.clientX;
      this.clientYStart = event.clientY;
      this.document.addEventListener("mousemove", this._onmousemove, true);
      this.document.addEventListener("mouseup", this._endPan, true);
      this.element.addEventListener("scroll", this._endPan, true);
      event.preventDefault();
      event.stopPropagation();
      const focusedElement = document.activeElement;
  
      if (focusedElement && !focusedElement.contains(event.target)) {
        focusedElement.blur();
      }
    },
    _onmousemove: function GrabToPan__onmousemove(event) {
      this.element.removeEventListener("scroll", this._endPan, true);
  
      if (isLeftMouseReleased(event)) {
        this._endPan();
  
        return;
      }
  
      const xDiff = event.clientX - this.clientXStart;
      const yDiff = event.clientY - this.clientYStart;
      const scrollTop = this.scrollTopStart - yDiff;
      const scrollLeft = this.scrollLeftStart - xDiff;
  
      if (this.element.scrollTo) {
        this.element.scrollTo({
          top: scrollTop,
          left: scrollLeft,
          behavior: "instant"
        });
      } else {
        this.element.scrollTop = scrollTop;
        this.element.scrollLeft = scrollLeft;
      }
  
      if (!this.overlay.parentNode) {
        document.body.appendChild(this.overlay);
      }
    },
    _endPan: function GrabToPan__endPan() {
      this.element.removeEventListener("scroll", this._endPan, true);
      this.document.removeEventListener("mousemove", this._onmousemove, true);
      this.document.removeEventListener("mouseup", this._endPan, true);
      this.overlay.remove();
    }
  };
  let matchesSelector;
  ["webkitM", "mozM", "msM", "oM", "m"].some(function (prefix) {
    let name = prefix + "atches";
  
    if (name in document.documentElement) {
      matchesSelector = name;
    }
  
    name += "Selector";
  
    if (name in document.documentElement) {
      matchesSelector = name;
    }
  
    return matchesSelector;
  });
  const isNotIEorIsIE10plus = !document.documentMode || document.documentMode > 9;
  const chrome = window.chrome;
  const isChrome15OrOpera15plus = chrome && (chrome.webstore || chrome.app);
  const isSafari6plus = /Apple/.test(navigator.vendor) && /Version\/([6-9]\d*|[1-5]\d+)/.test(navigator.userAgent);
  
  function isLeftMouseReleased(event) {
    if ("buttons" in event && isNotIEorIsIE10plus) {
      return !(event.buttons & 1);
    }
  
    if (isChrome15OrOpera15plus || isSafari6plus) {
      return event.which === 0;
    }
  
    return false;
  }
  
  /***/ }),
  /* 8 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFRenderingQueue = exports.RenderingStates = void 0;
  const CLEANUP_TIMEOUT = 30000;
  const RenderingStates = {
    INITIAL: 0,
    RUNNING: 1,
    PAUSED: 2,
    FINISHED: 3
  };
  exports.RenderingStates = RenderingStates;
  
  class PDFRenderingQueue {
    constructor() {
      this.pdfViewer = null;
      this.pdfThumbnailViewer = null;
      this.onIdle = null;
      this.highestPriorityPage = null;
      this.idleTimeout = null;
      this.printing = false;
      this.isThumbnailViewEnabled = false;
    }
  
    setViewer(pdfViewer) {
      this.pdfViewer = pdfViewer;
    }
  
    setThumbnailViewer(pdfThumbnailViewer) {
      this.pdfThumbnailViewer = pdfThumbnailViewer;
    }
  
    isHighestPriority(view) {
      return this.highestPriorityPage === view.renderingId;
    }
  
    renderHighestPriority(currentlyVisiblePages) {
      if (this.idleTimeout) {
        clearTimeout(this.idleTimeout);
        this.idleTimeout = null;
      }
  
      if (this.pdfViewer.forceRendering(currentlyVisiblePages)) {
        return;
      }
  
      if (this.pdfThumbnailViewer && this.isThumbnailViewEnabled) {
        if (this.pdfThumbnailViewer.forceRendering()) {
          return;
        }
      }
  
      if (this.printing) {
        return;
      }
  
      if (this.onIdle) {
        this.idleTimeout = setTimeout(this.onIdle.bind(this), CLEANUP_TIMEOUT);
      }
    }
  
    getHighestPriority(visible, views, scrolledDown) {
      const visibleViews = visible.views;
      const numVisible = visibleViews.length;
  
      if (numVisible === 0) {
        return null;
      }
  
      for (let i = 0; i < numVisible; ++i) {
        const view = visibleViews[i].view;
  
        if (!this.isViewFinished(view)) {
          return view;
        }
      }
  
      if (scrolledDown) {
        const nextPageIndex = visible.last.id;
  
        if (views[nextPageIndex] && !this.isViewFinished(views[nextPageIndex])) {
          return views[nextPageIndex];
        }
      } else {
        const previousPageIndex = visible.first.id - 2;
  
        if (views[previousPageIndex] && !this.isViewFinished(views[previousPageIndex])) {
          return views[previousPageIndex];
        }
      }
  
      return null;
    }
  
    isViewFinished(view) {
      return view.renderingState === RenderingStates.FINISHED;
    }
  
    renderView(view) {
      switch (view.renderingState) {
        case RenderingStates.FINISHED:
          return false;
  
        case RenderingStates.PAUSED:
          this.highestPriorityPage = view.renderingId;
          view.resume();
          break;
  
        case RenderingStates.RUNNING:
          this.highestPriorityPage = view.renderingId;
          break;
  
        case RenderingStates.INITIAL:
          this.highestPriorityPage = view.renderingId;
          view.draw().finally(() => {
            this.renderHighestPriority();
          }).catch(reason => {
            console.error(`renderView: "${reason}"`);
          });
          break;
      }
  
      return true;
    }
  
  }
  
  exports.PDFRenderingQueue = PDFRenderingQueue;
  
  /***/ }),
  /* 9 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFSidebar = exports.SidebarView = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_rendering_queue = __webpack_require__(8);
  
  const UI_NOTIFICATION_CLASS = "pdfSidebarNotification";
  const SidebarView = {
    UNKNOWN: -1,
    NONE: 0,
    THUMBS: 1,
    OUTLINE: 2,
    ATTACHMENTS: 3,
    LAYERS: 4
  };
  exports.SidebarView = SidebarView;
  
  class PDFSidebar {
    constructor({
      elements,
      pdfViewer,
      pdfThumbnailViewer,
      eventBus,
      l10n = _ui_utils.NullL10n,
      disableNotification = false
    }) {
      this.isOpen = false;
      this.active = SidebarView.THUMBS;
      this.isInitialViewSet = false;
      this.onToggled = null;
      this.pdfViewer = pdfViewer;
      this.pdfThumbnailViewer = pdfThumbnailViewer;
      this.outerContainer = elements.outerContainer;
      this.viewerContainer = elements.viewerContainer;
      this.toggleButton = elements.toggleButton;
      this.thumbnailButton = elements.thumbnailButton;
      this.outlineButton = elements.outlineButton;
      this.attachmentsButton = elements.attachmentsButton;
      this.thumbnailView = elements.thumbnailView;
      this.outlineView = elements.outlineView;
      this.attachmentsView = elements.attachmentsView;
      this.eventBus = eventBus;
      this.l10n = l10n;
      this._disableNotification = disableNotification;
  
      this._addEventListeners();
    }
  
    reset() {
      this.isInitialViewSet = false;
  
      this._hideUINotification(null);
  
      this.switchView(SidebarView.THUMBS);
      this.outlineButton.disabled = false;
      this.attachmentsButton.disabled = false;
    }
  
    get visibleView() {
      return this.isOpen ? this.active : SidebarView.NONE;
    }
  
    get isThumbnailViewVisible() {
      return this.isOpen && this.active === SidebarView.THUMBS;
    }
  
    get isOutlineViewVisible() {
      return this.isOpen && this.active === SidebarView.OUTLINE;
    }
  
    get isAttachmentsViewVisible() {
      return this.isOpen && this.active === SidebarView.ATTACHMENTS;
    }
  
    setInitialView(view = SidebarView.NONE) {
      if (this.isInitialViewSet) {
        return;
      }
  
      this.isInitialViewSet = true;
  
      if (view === SidebarView.NONE || view === SidebarView.UNKNOWN) {
        this._dispatchEvent();
  
        return;
      }
  
      if (!this._switchView(view, true)) {
        this._dispatchEvent();
      }
    }
  
    switchView(view, forceOpen = false) {
      this._switchView(view, forceOpen);
    }
  
    _switchView(view, forceOpen = false) {
      const isViewChanged = view !== this.active;
      let shouldForceRendering = false;
  
      switch (view) {
        case SidebarView.NONE:
          if (this.isOpen) {
            this.close();
            return true;
          }
  
          return false;
  
        case SidebarView.THUMBS:
          if (this.isOpen && isViewChanged) {
            shouldForceRendering = true;
          }
  
          break;
  
        case SidebarView.OUTLINE:
          if (this.outlineButton.disabled) {
            return false;
          }
  
          break;
  
        case SidebarView.ATTACHMENTS:
          if (this.attachmentsButton.disabled) {
            return false;
          }
  
          break;
  
        default:
          console.error(`PDFSidebar._switchView: "${view}" is not a valid view.`);
          return false;
      }
  
      this.active = view;
      this.thumbnailButton.classList.toggle("toggled", view === SidebarView.THUMBS);
      this.outlineButton.classList.toggle("toggled", view === SidebarView.OUTLINE);
      this.attachmentsButton.classList.toggle("toggled", view === SidebarView.ATTACHMENTS);
      this.thumbnailView.classList.toggle("hidden", view !== SidebarView.THUMBS);
      this.outlineView.classList.toggle("hidden", view !== SidebarView.OUTLINE);
      this.attachmentsView.classList.toggle("hidden", view !== SidebarView.ATTACHMENTS);
  
      if (forceOpen && !this.isOpen) {
        this.open();
        return true;
      }
  
      if (shouldForceRendering) {
        this._updateThumbnailViewer();
  
        this._forceRendering();
      }
  
      if (isViewChanged) {
        this._dispatchEvent();
      }
  
      this._hideUINotification(this.active);
  
      return isViewChanged;
    }
  
    open() {
      if (this.isOpen) {
        return;
      }
  
      this.isOpen = true;
      this.toggleButton.classList.add("toggled");
      this.outerContainer.classList.add("sidebarMoving", "sidebarOpen");
  
      if (this.active === SidebarView.THUMBS) {
        this._updateThumbnailViewer();
      }
  
      this._forceRendering();
  
      this._dispatchEvent();
  
      this._hideUINotification(this.active);
    }
  
    close() {
      if (!this.isOpen) {
        return;
      }
  
      this.isOpen = false;
      this.toggleButton.classList.remove("toggled");
      this.outerContainer.classList.add("sidebarMoving");
      this.outerContainer.classList.remove("sidebarOpen");
  
      this._forceRendering();
  
      this._dispatchEvent();
    }
  
    toggle() {
      if (this.isOpen) {
        this.close();
      } else {
        this.open();
      }
    }
  
    _dispatchEvent() {
      this.eventBus.dispatch("sidebarviewchanged", {
        source: this,
        view: this.visibleView
      });
    }
  
    _forceRendering() {
      if (this.onToggled) {
        this.onToggled();
      } else {
        this.pdfViewer.forceRendering();
        this.pdfThumbnailViewer.forceRendering();
      }
    }
  
    _updateThumbnailViewer() {
      const {
        pdfViewer,
        pdfThumbnailViewer
      } = this;
      const pagesCount = pdfViewer.pagesCount;
  
      for (let pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
        const pageView = pdfViewer.getPageView(pageIndex);
  
        if (pageView && pageView.renderingState === _pdf_rendering_queue.RenderingStates.FINISHED) {
          const thumbnailView = pdfThumbnailViewer.getThumbnail(pageIndex);
          thumbnailView.setImage(pageView);
        }
      }
  
      pdfThumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber);
    }
  
    _showUINotification(view) {
      if (this._disableNotification) {
        return;
      }
  
      this.l10n.get("toggle_sidebar_notification.title", null, "Toggle Sidebar (document contains outline/attachments)").then(msg => {
        this.toggleButton.title = msg;
      });
  
      if (!this.isOpen) {
        this.toggleButton.classList.add(UI_NOTIFICATION_CLASS);
      } else if (view === this.active) {
        return;
      }
  
      switch (view) {
        case SidebarView.OUTLINE:
          this.outlineButton.classList.add(UI_NOTIFICATION_CLASS);
          break;
  
        case SidebarView.ATTACHMENTS:
          this.attachmentsButton.classList.add(UI_NOTIFICATION_CLASS);
          break;
      }
    }
  
    _hideUINotification(view) {
      if (this._disableNotification) {
        return;
      }
  
      const removeNotification = sidebarView => {
        switch (sidebarView) {
          case SidebarView.OUTLINE:
            this.outlineButton.classList.remove(UI_NOTIFICATION_CLASS);
            break;
  
          case SidebarView.ATTACHMENTS:
            this.attachmentsButton.classList.remove(UI_NOTIFICATION_CLASS);
            break;
        }
      };
  
      if (!this.isOpen && view !== null) {
        return;
      }
  
      this.toggleButton.classList.remove(UI_NOTIFICATION_CLASS);
  
      if (view !== null) {
        removeNotification(view);
        return;
      }
  
      for (view in SidebarView) {
        removeNotification(SidebarView[view]);
      }
  
      this.l10n.get("toggle_sidebar.title", null, "Toggle Sidebar").then(msg => {
        this.toggleButton.title = msg;
      });
    }
  
    _addEventListeners() {
      this.viewerContainer.addEventListener("transitionend", evt => {
        if (evt.target === this.viewerContainer) {
          this.outerContainer.classList.remove("sidebarMoving");
        }
      });
      this.toggleButton.addEventListener("click", () => {
        this.toggle();
      });
      this.thumbnailButton.addEventListener("click", () => {
        this.switchView(SidebarView.THUMBS);
      });
      this.outlineButton.addEventListener("click", () => {
        this.switchView(SidebarView.OUTLINE);
      });
      this.outlineButton.addEventListener("dblclick", () => {
        this.eventBus.dispatch("toggleoutlinetree", {
          source: this
        });
      });
      this.attachmentsButton.addEventListener("click", () => {
        this.switchView(SidebarView.ATTACHMENTS);
      });
  
      this.eventBus._on("outlineloaded", evt => {
        const outlineCount = evt.outlineCount;
        this.outlineButton.disabled = !outlineCount;
  
        if (outlineCount) {
          this._showUINotification(SidebarView.OUTLINE);
        } else if (this.active === SidebarView.OUTLINE) {
          this.switchView(SidebarView.THUMBS);
        }
      });
  
      this.eventBus._on("attachmentsloaded", evt => {
        if (evt.attachmentsCount) {
          this.attachmentsButton.disabled = false;
  
          this._showUINotification(SidebarView.ATTACHMENTS);
  
          return;
        }
  
        Promise.resolve().then(() => {
          if (this.attachmentsView.hasChildNodes()) {
            return;
          }
  
          this.attachmentsButton.disabled = true;
  
          if (this.active === SidebarView.ATTACHMENTS) {
            this.switchView(SidebarView.THUMBS);
          }
        });
      });
  
      this.eventBus._on("presentationmodechanged", evt => {
        if (!evt.active && !evt.switchInProgress && this.isThumbnailViewVisible) {
          this._updateThumbnailViewer();
        }
      });
    }
  
  }
  
  exports.PDFSidebar = PDFSidebar;
  
  /***/ }),
  /* 10 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.OverlayManager = void 0;
  
  class OverlayManager {
    constructor() {
      this._overlays = {};
      this._active = null;
      this._keyDownBound = this._keyDown.bind(this);
    }
  
    get active() {
      return this._active;
    }
  
    async register(name, element, callerCloseMethod = null, canForceClose = false) {
      let container;
  
      if (!name || !element || !(container = element.parentNode)) {
        throw new Error("Not enough parameters.");
      } else if (this._overlays[name]) {
        throw new Error("The overlay is already registered.");
      }
  
      this._overlays[name] = {
        element,
        container,
        callerCloseMethod,
        canForceClose
      };
    }
  
    async unregister(name) {
      if (!this._overlays[name]) {
        throw new Error("The overlay does not exist.");
      } else if (this._active === name) {
        throw new Error("The overlay cannot be removed while it is active.");
      }
  
      delete this._overlays[name];
    }
  
    async open(name) {
      if (!this._overlays[name]) {
        throw new Error("The overlay does not exist.");
      } else if (this._active) {
        if (this._overlays[name].canForceClose) {
          this._closeThroughCaller();
        } else if (this._active === name) {
          throw new Error("The overlay is already active.");
        } else {
          throw new Error("Another overlay is currently active.");
        }
      }
  
      this._active = name;
  
      this._overlays[this._active].element.classList.remove("hidden");
  
      this._overlays[this._active].container.classList.remove("hidden");
  
      window.addEventListener("keydown", this._keyDownBound);
    }
  
    async close(name) {
      if (!this._overlays[name]) {
        throw new Error("The overlay does not exist.");
      } else if (!this._active) {
        throw new Error("The overlay is currently not active.");
      } else if (this._active !== name) {
        throw new Error("Another overlay is currently active.");
      }
  
      this._overlays[this._active].container.classList.add("hidden");
  
      this._overlays[this._active].element.classList.add("hidden");
  
      this._active = null;
      window.removeEventListener("keydown", this._keyDownBound);
    }
  
    _keyDown(evt) {
      if (this._active && evt.keyCode === 27) {
        this._closeThroughCaller();
  
        evt.preventDefault();
      }
    }
  
    _closeThroughCaller() {
      if (this._overlays[this._active].callerCloseMethod) {
        this._overlays[this._active].callerCloseMethod();
      }
  
      if (this._active) {
        this.close(this._active);
      }
    }
  
  }
  
  exports.OverlayManager = OverlayManager;
  
  /***/ }),
  /* 11 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PasswordPrompt = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdfjsLib = __webpack_require__(5);
  
  class PasswordPrompt {
    constructor(options, overlayManager, l10n = _ui_utils.NullL10n) {
      this.overlayName = options.overlayName;
      this.container = options.container;
      this.label = options.label;
      this.input = options.input;
      this.submitButton = options.submitButton;
      this.cancelButton = options.cancelButton;
      this.overlayManager = overlayManager;
      this.l10n = l10n;
      this.updateCallback = null;
      this.reason = null;
      this.submitButton.addEventListener("click", this.verify.bind(this));
      this.cancelButton.addEventListener("click", this.close.bind(this));
      this.input.addEventListener("keydown", e => {
        if (e.keyCode === 13) {
          this.verify();
        }
      });
      this.overlayManager.register(this.overlayName, this.container, this.close.bind(this), true);
    }
  
    open() {
      this.overlayManager.open(this.overlayName).then(() => {
        this.input.focus();
        let promptString;
  
        if (this.reason === _pdfjsLib.PasswordResponses.INCORRECT_PASSWORD) {
          promptString = this.l10n.get("password_invalid", null, "Invalid password. Please try again.");
        } else {
          promptString = this.l10n.get("password_label", null, "Enter the password to open this PDF file.");
        }
  
        promptString.then(msg => {
          this.label.textContent = msg;
        });
      });
    }
  
    close() {
      this.overlayManager.close(this.overlayName).then(() => {
        this.input.value = "";
      });
    }
  
    verify() {
      const password = this.input.value;
  
      if (password && password.length > 0) {
        this.close();
        this.updateCallback(password);
      }
    }
  
    setUpdateCallback(updateCallback, reason) {
      this.updateCallback = updateCallback;
      this.reason = reason;
    }
  
  }
  
  exports.PasswordPrompt = PasswordPrompt;
  
  /***/ }),
  /* 12 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFAttachmentViewer = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  class PDFAttachmentViewer {
    constructor({
      container,
      eventBus,
      downloadManager
    }) {
      this.container = container;
      this.eventBus = eventBus;
      this.downloadManager = downloadManager;
      this.reset();
  
      this.eventBus._on("fileattachmentannotation", this._appendAttachment.bind(this));
    }
  
    reset(keepRenderedCapability = false) {
      this.attachments = null;
      this.container.textContent = "";
  
      if (!keepRenderedCapability) {
        this._renderedCapability = (0, _pdfjsLib.createPromiseCapability)();
      }
    }
  
    _dispatchEvent(attachmentsCount) {
      this._renderedCapability.resolve();
  
      this.eventBus.dispatch("attachmentsloaded", {
        source: this,
        attachmentsCount
      });
    }
  
    _bindPdfLink(button, content, filename) {
      let blobUrl;
  
      button.onclick = () => {
        if (!blobUrl) {
          blobUrl = URL.createObjectURL(new Blob([content], {
            type: "application/pdf"
          }));
        }
  
        let viewerUrl;
        viewerUrl = "?file=" + encodeURIComponent(blobUrl + "#" + filename);
  
        try {
          window.open(viewerUrl);
        } catch (ex) {
          console.error(`_bindPdfLink: ${ex}`);
          URL.revokeObjectURL(blobUrl);
          blobUrl = null;
          this.downloadManager.downloadData(content, filename, "application/pdf");
        }
  
        return false;
      };
    }
  
    _bindLink(button, content, filename) {
      button.onclick = () => {
        this.downloadManager.downloadData(content, filename, "");
        return false;
      };
    }
  
    render({
      attachments,
      keepRenderedCapability = false
    }) {
      let attachmentsCount = 0;
  
      if (this.attachments) {
        this.reset(keepRenderedCapability === true);
      }
  
      this.attachments = attachments || null;
  
      if (!attachments) {
        this._dispatchEvent(attachmentsCount);
  
        return;
      }
  
      const names = Object.keys(attachments).sort(function (a, b) {
        return a.toLowerCase().localeCompare(b.toLowerCase());
      });
      attachmentsCount = names.length;
  
      for (let i = 0; i < attachmentsCount; i++) {
        const item = attachments[names[i]];
        const filename = (0, _pdfjsLib.removeNullCharacters)((0, _pdfjsLib.getFilenameFromUrl)(item.filename));
        const div = document.createElement("div");
        div.className = "attachmentsItem";
        const button = document.createElement("button");
        button.textContent = filename;
  
        if (/\.pdf$/i.test(filename) && !this.downloadManager.disableCreateObjectURL) {
          this._bindPdfLink(button, item.content, filename);
        } else {
          this._bindLink(button, item.content, filename);
        }
  
        div.appendChild(button);
        this.container.appendChild(div);
      }
  
      this._dispatchEvent(attachmentsCount);
    }
  
    _appendAttachment({
      id,
      filename,
      content
    }) {
      this._renderedCapability.promise.then(() => {
        let attachments = this.attachments;
  
        if (!attachments) {
          attachments = Object.create(null);
        } else {
          for (const name in attachments) {
            if (id === name) {
              return;
            }
          }
        }
  
        attachments[id] = {
          filename,
          content
        };
        this.render({
          attachments,
          keepRenderedCapability: true
        });
      });
    }
  
  }
  
  exports.PDFAttachmentViewer = PDFAttachmentViewer;
  
  /***/ }),
  /* 13 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFDocumentProperties = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _ui_utils = __webpack_require__(2);
  
  const DEFAULT_FIELD_CONTENT = "-";
  const NON_METRIC_LOCALES = ["en-us", "en-lr", "my"];
  const US_PAGE_NAMES = {
    "8.5x11": "Letter",
    "8.5x14": "Legal"
  };
  const METRIC_PAGE_NAMES = {
    "297x420": "A3",
    "210x297": "A4"
  };
  
  function getPageName(size, isPortrait, pageNames) {
    const width = isPortrait ? size.width : size.height;
    const height = isPortrait ? size.height : size.width;
    return pageNames[`${width}x${height}`];
  }
  
  class PDFDocumentProperties {
    constructor({
      overlayName,
      fields,
      container,
      closeButton
    }, overlayManager, eventBus, l10n = _ui_utils.NullL10n) {
      this.overlayName = overlayName;
      this.fields = fields;
      this.container = container;
      this.overlayManager = overlayManager;
      this.l10n = l10n;
  
      this._reset();
  
      closeButton.addEventListener("click", this.close.bind(this));
      this.overlayManager.register(this.overlayName, this.container, this.close.bind(this));
  
      eventBus._on("pagechanging", evt => {
        this._currentPageNumber = evt.pageNumber;
      });
  
      eventBus._on("rotationchanging", evt => {
        this._pagesRotation = evt.pagesRotation;
      });
  
      this._isNonMetricLocale = true;
      l10n.getLanguage().then(locale => {
        this._isNonMetricLocale = NON_METRIC_LOCALES.includes(locale);
      });
    }
  
    open() {
      const freezeFieldData = data => {
        Object.defineProperty(this, "fieldData", {
          value: Object.freeze(data),
          writable: false,
          enumerable: true,
          configurable: true
        });
      };
  
      Promise.all([this.overlayManager.open(this.overlayName), this._dataAvailableCapability.promise]).then(() => {
        const currentPageNumber = this._currentPageNumber;
        const pagesRotation = this._pagesRotation;
  
        if (this.fieldData && currentPageNumber === this.fieldData._currentPageNumber && pagesRotation === this.fieldData._pagesRotation) {
          this._updateUI();
  
          return;
        }
  
        this.pdfDocument.getMetadata().then(({
          info,
          metadata,
          contentDispositionFilename
        }) => {
          return Promise.all([info, metadata, contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(this.url), this._parseFileSize(this.maybeFileSize), this._parseDate(info.CreationDate), this._parseDate(info.ModDate), this.pdfDocument.getPage(currentPageNumber).then(pdfPage => {
            return this._parsePageSize((0, _ui_utils.getPageSizeInches)(pdfPage), pagesRotation);
          }), this._parseLinearization(info.IsLinearized)]);
        }).then(([info, metadata, fileName, fileSize, creationDate, modDate, pageSize, isLinearized]) => {
          freezeFieldData({
            fileName,
            fileSize,
            title: info.Title,
            author: info.Author,
            subject: info.Subject,
            keywords: info.Keywords,
            creationDate,
            modificationDate: modDate,
            creator: info.Creator,
            producer: info.Producer,
            version: info.PDFFormatVersion,
            pageCount: this.pdfDocument.numPages,
            pageSize,
            linearized: isLinearized,
            _currentPageNumber: currentPageNumber,
            _pagesRotation: pagesRotation
          });
  
          this._updateUI();
  
          return this.pdfDocument.getDownloadInfo();
        }).then(({
          length
        }) => {
          this.maybeFileSize = length;
          return this._parseFileSize(length);
        }).then(fileSize => {
          if (fileSize === this.fieldData.fileSize) {
            return;
          }
  
          const data = Object.assign(Object.create(null), this.fieldData);
          data.fileSize = fileSize;
          freezeFieldData(data);
  
          this._updateUI();
        });
      });
    }
  
    close() {
      this.overlayManager.close(this.overlayName);
    }
  
    setDocument(pdfDocument, url = null) {
      if (this.pdfDocument) {
        this._reset();
  
        this._updateUI(true);
      }
  
      if (!pdfDocument) {
        return;
      }
  
      this.pdfDocument = pdfDocument;
      this.url = url;
  
      this._dataAvailableCapability.resolve();
    }
  
    setFileSize(fileSize) {
      if (Number.isInteger(fileSize) && fileSize > 0) {
        this.maybeFileSize = fileSize;
      }
    }
  
    _reset() {
      this.pdfDocument = null;
      this.url = null;
      this.maybeFileSize = 0;
      delete this.fieldData;
      this._dataAvailableCapability = (0, _pdfjsLib.createPromiseCapability)();
      this._currentPageNumber = 1;
      this._pagesRotation = 0;
    }
  
    _updateUI(reset = false) {
      if (reset || !this.fieldData) {
        for (const id in this.fields) {
          this.fields[id].textContent = DEFAULT_FIELD_CONTENT;
        }
  
        return;
      }
  
      if (this.overlayManager.active !== this.overlayName) {
        return;
      }
  
      for (const id in this.fields) {
        const content = this.fieldData[id];
        this.fields[id].textContent = content || content === 0 ? content : DEFAULT_FIELD_CONTENT;
      }
    }
  
    async _parseFileSize(fileSize = 0) {
      const kb = fileSize / 1024;
  
      if (!kb) {
        return undefined;
      } else if (kb < 1024) {
        return this.l10n.get("document_properties_kb", {
          size_kb: (+kb.toPrecision(3)).toLocaleString(),
          size_b: fileSize.toLocaleString()
        }, "{{size_kb}} KB ({{size_b}} bytes)");
      }
  
      return this.l10n.get("document_properties_mb", {
        size_mb: (+(kb / 1024).toPrecision(3)).toLocaleString(),
        size_b: fileSize.toLocaleString()
      }, "{{size_mb}} MB ({{size_b}} bytes)");
    }
  
    async _parsePageSize(pageSizeInches, pagesRotation) {
      if (!pageSizeInches) {
        return undefined;
      }
  
      if (pagesRotation % 180 !== 0) {
        pageSizeInches = {
          width: pageSizeInches.height,
          height: pageSizeInches.width
        };
      }
  
      const isPortrait = (0, _ui_utils.isPortraitOrientation)(pageSizeInches);
      let sizeInches = {
        width: Math.round(pageSizeInches.width * 100) / 100,
        height: Math.round(pageSizeInches.height * 100) / 100
      };
      let sizeMillimeters = {
        width: Math.round(pageSizeInches.width * 25.4 * 10) / 10,
        height: Math.round(pageSizeInches.height * 25.4 * 10) / 10
      };
      let pageName = null;
      let rawName = getPageName(sizeInches, isPortrait, US_PAGE_NAMES) || getPageName(sizeMillimeters, isPortrait, METRIC_PAGE_NAMES);
  
      if (!rawName && !(Number.isInteger(sizeMillimeters.width) && Number.isInteger(sizeMillimeters.height))) {
        const exactMillimeters = {
          width: pageSizeInches.width * 25.4,
          height: pageSizeInches.height * 25.4
        };
        const intMillimeters = {
          width: Math.round(sizeMillimeters.width),
          height: Math.round(sizeMillimeters.height)
        };
  
        if (Math.abs(exactMillimeters.width - intMillimeters.width) < 0.1 && Math.abs(exactMillimeters.height - intMillimeters.height) < 0.1) {
          rawName = getPageName(intMillimeters, isPortrait, METRIC_PAGE_NAMES);
  
          if (rawName) {
            sizeInches = {
              width: Math.round(intMillimeters.width / 25.4 * 100) / 100,
              height: Math.round(intMillimeters.height / 25.4 * 100) / 100
            };
            sizeMillimeters = intMillimeters;
          }
        }
      }
  
      if (rawName) {
        pageName = this.l10n.get("document_properties_page_size_name_" + rawName.toLowerCase(), null, rawName);
      }
  
      return Promise.all([this._isNonMetricLocale ? sizeInches : sizeMillimeters, this.l10n.get("document_properties_page_size_unit_" + (this._isNonMetricLocale ? "inches" : "millimeters"), null, this._isNonMetricLocale ? "in" : "mm"), pageName, this.l10n.get("document_properties_page_size_orientation_" + (isPortrait ? "portrait" : "landscape"), null, isPortrait ? "portrait" : "landscape")]).then(([{
        width,
        height
      }, unit, name, orientation]) => {
        return this.l10n.get("document_properties_page_size_dimension_" + (name ? "name_" : "") + "string", {
          width: width.toLocaleString(),
          height: height.toLocaleString(),
          unit,
          name,
          orientation
        }, "{{width}} × {{height}} {{unit}} (" + (name ? "{{name}}, " : "") + "{{orientation}})");
      });
    }
  
    async _parseDate(inputDate) {
      const dateObject = _pdfjsLib.PDFDateString.toDateObject(inputDate);
  
      if (!dateObject) {
        return undefined;
      }
  
      return this.l10n.get("document_properties_date_string", {
        date: dateObject.toLocaleDateString(),
        time: dateObject.toLocaleTimeString()
      }, "{{date}}, {{time}}");
    }
  
    _parseLinearization(isLinearized) {
      return this.l10n.get("document_properties_linearized_" + (isLinearized ? "yes" : "no"), null, isLinearized ? "Yes" : "No");
    }
  
  }
  
  exports.PDFDocumentProperties = PDFDocumentProperties;
  
  /***/ }),
  /* 14 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFFindBar = void 0;
  
  var _pdf_find_controller = __webpack_require__(15);
  
  var _ui_utils = __webpack_require__(2);
  
  const MATCHES_COUNT_LIMIT = 1000;
  
  class PDFFindBar {
    constructor(options, eventBus, l10n = _ui_utils.NullL10n) {
      this.opened = false;
      this.bar = options.bar || null;
      this.toggleButton = options.toggleButton || null;
      this.findField = options.findField || null;
      this.highlightAll = options.highlightAllCheckbox || null;
      this.caseSensitive = options.caseSensitiveCheckbox || null;
      this.entireWord = options.entireWordCheckbox || null;
      this.findMsg = options.findMsg || null;
      this.findResultsCount = options.findResultsCount || null;
      this.findPreviousButton = options.findPreviousButton || null;
      this.findNextButton = options.findNextButton || null;
      this.eventBus = eventBus;
      this.l10n = l10n;
      this.toggleButton.addEventListener("click", () => {
        this.toggle();
      });
      this.findField.addEventListener("input", () => {
        this.dispatchEvent("");
      });
      this.bar.addEventListener("keydown", e => {
        switch (e.keyCode) {
          case 13:
            if (e.target === this.findField) {
              this.dispatchEvent("again", e.shiftKey);
            }
  
            break;
  
          case 27:
            this.close();
            break;
        }
      });
      this.findPreviousButton.addEventListener("click", () => {
        this.dispatchEvent("again", true);
      });
      this.findNextButton.addEventListener("click", () => {
        this.dispatchEvent("again", false);
      });
      this.highlightAll.addEventListener("click", () => {
        this.dispatchEvent("highlightallchange");
      });
      this.caseSensitive.addEventListener("click", () => {
        this.dispatchEvent("casesensitivitychange");
      });
      this.entireWord.addEventListener("click", () => {
        this.dispatchEvent("entirewordchange");
      });
  
      this.eventBus._on("resize", this._adjustWidth.bind(this));
    }
  
    reset() {
      this.updateUIState();
    }
  
    dispatchEvent(type, findPrev) {
      this.eventBus.dispatch("find", {
        source: this,
        type,
        query: this.findField.value,
        phraseSearch: true,
        caseSensitive: this.caseSensitive.checked,
        entireWord: this.entireWord.checked,
        highlightAll: this.highlightAll.checked,
        findPrevious: findPrev
      });
    }
  
    updateUIState(state, previous, matchesCount) {
      let notFound = false;
      let findMsg = "";
      let status = "";
  
      switch (state) {
        case _pdf_find_controller.FindState.FOUND:
          break;
  
        case _pdf_find_controller.FindState.PENDING:
          status = "pending";
          break;
  
        case _pdf_find_controller.FindState.NOT_FOUND:
          findMsg = this.l10n.get("find_not_found", null, "Phrase not found");
          notFound = true;
          break;
  
        case _pdf_find_controller.FindState.WRAPPED:
          if (previous) {
            findMsg = this.l10n.get("find_reached_top", null, "Reached top of document, continued from bottom");
          } else {
            findMsg = this.l10n.get("find_reached_bottom", null, "Reached end of document, continued from top");
          }
  
          break;
      }
  
      this.findField.classList.toggle("notFound", notFound);
      this.findField.setAttribute("data-status", status);
      Promise.resolve(findMsg).then(msg => {
        this.findMsg.textContent = msg;
  
        this._adjustWidth();
      });
      this.updateResultsCount(matchesCount);
    }
  
    updateResultsCount({
      current = 0,
      total = 0
    } = {}) {
      if (!this.findResultsCount) {
        return;
      }
  
      const limit = MATCHES_COUNT_LIMIT;
      let matchesCountMsg = "";
  
      if (total > 0) {
        if (total > limit) {
          matchesCountMsg = this.l10n.get("find_match_count_limit", {
            limit
          }, "More than {{limit}} match" + (limit !== 1 ? "es" : ""));
        } else {
          matchesCountMsg = this.l10n.get("find_match_count", {
            current,
            total
          }, "{{current}} of {{total}} match" + (total !== 1 ? "es" : ""));
        }
      }
  
      Promise.resolve(matchesCountMsg).then(msg => {
        this.findResultsCount.textContent = msg;
        this.findResultsCount.classList.toggle("hidden", !total);
  
        this._adjustWidth();
      });
    }
  
    open() {
      if (!this.opened) {
        this.opened = true;
        this.toggleButton.classList.add("toggled");
        this.bar.classList.remove("hidden");
      }
  
      this.findField.select();
      this.findField.focus();
  
      this._adjustWidth();
    }
  
    close() {
      if (!this.opened) {
        return;
      }
  
      this.opened = false;
      this.toggleButton.classList.remove("toggled");
      this.bar.classList.add("hidden");
      this.eventBus.dispatch("findbarclose", {
        source: this
      });
    }
  
    toggle() {
      if (this.opened) {
        this.close();
      } else {
        this.open();
      }
    }
  
    _adjustWidth() {
      if (!this.opened) {
        return;
      }
  
      this.bar.classList.remove("wrapContainers");
      const findbarHeight = this.bar.clientHeight;
      const inputContainerHeight = this.bar.firstElementChild.clientHeight;
  
      if (findbarHeight > inputContainerHeight) {
        this.bar.classList.add("wrapContainers");
      }
    }
  
  }
  
  exports.PDFFindBar = PDFFindBar;
  
  /***/ }),
  /* 15 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFFindController = exports.FindState = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _pdf_find_utils = __webpack_require__(16);
  
  var _ui_utils = __webpack_require__(2);
  
  const FindState = {
    FOUND: 0,
    NOT_FOUND: 1,
    WRAPPED: 2,
    PENDING: 3
  };
  exports.FindState = FindState;
  const FIND_TIMEOUT = 250;
  const MATCH_SCROLL_OFFSET_TOP = -50;
  const MATCH_SCROLL_OFFSET_LEFT = -400;
  const CHARACTERS_TO_NORMALIZE = {
    "\u2018": "'",
    "\u2019": "'",
    "\u201A": "'",
    "\u201B": "'",
    "\u201C": '"',
    "\u201D": '"',
    "\u201E": '"',
    "\u201F": '"',
    "\u00BC": "1/4",
    "\u00BD": "1/2",
    "\u00BE": "3/4"
  };
  let normalizationRegex = null;
  
  function normalize(text) {
    if (!normalizationRegex) {
      const replace = Object.keys(CHARACTERS_TO_NORMALIZE).join("");
      normalizationRegex = new RegExp(`[${replace}]`, "g");
    }
  
    return text.replace(normalizationRegex, function (ch) {
      return CHARACTERS_TO_NORMALIZE[ch];
    });
  }
  
  class PDFFindController {
    constructor({
      linkService,
      eventBus
    }) {
      this._linkService = linkService;
      this._eventBus = eventBus;
  
      this._reset();
  
      eventBus._on("findbarclose", this._onFindBarClose.bind(this));
    }
  
    get highlightMatches() {
      return this._highlightMatches;
    }
  
    get pageMatches() {
      return this._pageMatches;
    }
  
    get pageMatchesLength() {
      return this._pageMatchesLength;
    }
  
    get selected() {
      return this._selected;
    }
  
    get state() {
      return this._state;
    }
  
    setDocument(pdfDocument) {
      if (this._pdfDocument) {
        this._reset();
      }
  
      if (!pdfDocument) {
        return;
      }
  
      this._pdfDocument = pdfDocument;
  
      this._firstPageCapability.resolve();
    }
  
    executeCommand(cmd, state) {
      if (!state) {
        return;
      }
  
      const pdfDocument = this._pdfDocument;
  
      if (this._state === null || this._shouldDirtyMatch(cmd, state)) {
        this._dirtyMatch = true;
      }
  
      this._state = state;
  
      if (cmd !== "findhighlightallchange") {
        this._updateUIState(FindState.PENDING);
      }
  
      this._firstPageCapability.promise.then(() => {
        if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) {
          return;
        }
  
        this._extractText();
  
        const findbarClosed = !this._highlightMatches;
        const pendingTimeout = !!this._findTimeout;
  
        if (this._findTimeout) {
          clearTimeout(this._findTimeout);
          this._findTimeout = null;
        }
  
        if (cmd === "find") {
          this._findTimeout = setTimeout(() => {
            this._nextMatch();
  
            this._findTimeout = null;
          }, FIND_TIMEOUT);
        } else if (this._dirtyMatch) {
          this._nextMatch();
        } else if (cmd === "findagain") {
          this._nextMatch();
  
          if (findbarClosed && this._state.highlightAll) {
            this._updateAllPages();
          }
        } else if (cmd === "findhighlightallchange") {
          if (pendingTimeout) {
            this._nextMatch();
          } else {
            this._highlightMatches = true;
          }
  
          this._updateAllPages();
        } else {
          this._nextMatch();
        }
      });
    }
  
    scrollMatchIntoView({
      element = null,
      pageIndex = -1,
      matchIndex = -1
    }) {
      if (!this._scrollMatches || !element) {
        return;
      } else if (matchIndex === -1 || matchIndex !== this._selected.matchIdx) {
        return;
      } else if (pageIndex === -1 || pageIndex !== this._selected.pageIdx) {
        return;
      }
  
      this._scrollMatches = false;
      const spot = {
        top: MATCH_SCROLL_OFFSET_TOP,
        left: MATCH_SCROLL_OFFSET_LEFT
      };
      (0, _ui_utils.scrollIntoView)(element, spot, true);
    }
  
    _reset() {
      this._highlightMatches = false;
      this._scrollMatches = false;
      this._pdfDocument = null;
      this._pageMatches = [];
      this._pageMatchesLength = [];
      this._state = null;
      this._selected = {
        pageIdx: -1,
        matchIdx: -1
      };
      this._offset = {
        pageIdx: null,
        matchIdx: null,
        wrapped: false
      };
      this._extractTextPromises = [];
      this._pageContents = [];
      this._matchesCountTotal = 0;
      this._pagesToSearch = null;
      this._pendingFindMatches = Object.create(null);
      this._resumePageIdx = null;
      this._dirtyMatch = false;
      clearTimeout(this._findTimeout);
      this._findTimeout = null;
      this._firstPageCapability = (0, _pdfjsLib.createPromiseCapability)();
    }
  
    get _query() {
      if (this._state.query !== this._rawQuery) {
        this._rawQuery = this._state.query;
        this._normalizedQuery = normalize(this._state.query);
      }
  
      return this._normalizedQuery;
    }
  
    _shouldDirtyMatch(cmd, state) {
      if (state.query !== this._state.query) {
        return true;
      }
  
      switch (cmd) {
        case "findagain":
          const pageNumber = this._selected.pageIdx + 1;
          const linkService = this._linkService;
  
          if (pageNumber >= 1 && pageNumber <= linkService.pagesCount && pageNumber !== linkService.page && !linkService.isPageVisible(pageNumber)) {
            return true;
          }
  
          return false;
  
        case "findhighlightallchange":
          return false;
      }
  
      return true;
    }
  
    _prepareMatches(matchesWithLength, matches, matchesLength) {
      function isSubTerm(currentIndex) {
        const currentElem = matchesWithLength[currentIndex];
        const nextElem = matchesWithLength[currentIndex + 1];
  
        if (currentIndex < matchesWithLength.length - 1 && currentElem.match === nextElem.match) {
          currentElem.skipped = true;
          return true;
        }
  
        for (let i = currentIndex - 1; i >= 0; i--) {
          const prevElem = matchesWithLength[i];
  
          if (prevElem.skipped) {
            continue;
          }
  
          if (prevElem.match + prevElem.matchLength < currentElem.match) {
            break;
          }
  
          if (prevElem.match + prevElem.matchLength >= currentElem.match + currentElem.matchLength) {
            currentElem.skipped = true;
            return true;
          }
        }
  
        return false;
      }
  
      matchesWithLength.sort(function (a, b) {
        return a.match === b.match ? a.matchLength - b.matchLength : a.match - b.match;
      });
  
      for (let i = 0, len = matchesWithLength.length; i < len; i++) {
        if (isSubTerm(i)) {
          continue;
        }
  
        matches.push(matchesWithLength[i].match);
        matchesLength.push(matchesWithLength[i].matchLength);
      }
    }
  
    _isEntireWord(content, startIdx, length) {
      if (startIdx > 0) {
        const first = content.charCodeAt(startIdx);
        const limit = content.charCodeAt(startIdx - 1);
  
        if ((0, _pdf_find_utils.getCharacterType)(first) === (0, _pdf_find_utils.getCharacterType)(limit)) {
          return false;
        }
      }
  
      const endIdx = startIdx + length - 1;
  
      if (endIdx < content.length - 1) {
        const last = content.charCodeAt(endIdx);
        const limit = content.charCodeAt(endIdx + 1);
  
        if ((0, _pdf_find_utils.getCharacterType)(last) === (0, _pdf_find_utils.getCharacterType)(limit)) {
          return false;
        }
      }
  
      return true;
    }
  
    _calculatePhraseMatch(query, pageIndex, pageContent, entireWord) {
      const matches = [];
      const queryLen = query.length;
      let matchIdx = -queryLen;
  
      while (true) {
        matchIdx = pageContent.indexOf(query, matchIdx + queryLen);
  
        if (matchIdx === -1) {
          break;
        }
  
        if (entireWord && !this._isEntireWord(pageContent, matchIdx, queryLen)) {
          continue;
        }
  
        matches.push(matchIdx);
      }
  
      this._pageMatches[pageIndex] = matches;
    }
  
    _calculateWordMatch(query, pageIndex, pageContent, entireWord) {
      const matchesWithLength = [];
      const queryArray = query.match(/\S+/g);
  
      for (let i = 0, len = queryArray.length; i < len; i++) {
        const subquery = queryArray[i];
        const subqueryLen = subquery.length;
        let matchIdx = -subqueryLen;
  
        while (true) {
          matchIdx = pageContent.indexOf(subquery, matchIdx + subqueryLen);
  
          if (matchIdx === -1) {
            break;
          }
  
          if (entireWord && !this._isEntireWord(pageContent, matchIdx, subqueryLen)) {
            continue;
          }
  
          matchesWithLength.push({
            match: matchIdx,
            matchLength: subqueryLen,
            skipped: false
          });
        }
      }
  
      this._pageMatchesLength[pageIndex] = [];
      this._pageMatches[pageIndex] = [];
  
      this._prepareMatches(matchesWithLength, this._pageMatches[pageIndex], this._pageMatchesLength[pageIndex]);
    }
  
    _calculateMatch(pageIndex) {
      let pageContent = this._pageContents[pageIndex];
      let query = this._query;
      const {
        caseSensitive,
        entireWord,
        phraseSearch
      } = this._state;
  
      if (query.length === 0) {
        return;
      }
  
      if (!caseSensitive) {
        pageContent = pageContent.toLowerCase();
        query = query.toLowerCase();
      }
  
      if (phraseSearch) {
        this._calculatePhraseMatch(query, pageIndex, pageContent, entireWord);
      } else {
        this._calculateWordMatch(query, pageIndex, pageContent, entireWord);
      }
  
      if (this._state.highlightAll) {
        this._updatePage(pageIndex);
      }
  
      if (this._resumePageIdx === pageIndex) {
        this._resumePageIdx = null;
  
        this._nextPageMatch();
      }
  
      const pageMatchesCount = this._pageMatches[pageIndex].length;
  
      if (pageMatchesCount > 0) {
        this._matchesCountTotal += pageMatchesCount;
  
        this._updateUIResultsCount();
      }
    }
  
    _extractText() {
      if (this._extractTextPromises.length > 0) {
        return;
      }
  
      let promise = Promise.resolve();
  
      for (let i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
        const extractTextCapability = (0, _pdfjsLib.createPromiseCapability)();
        this._extractTextPromises[i] = extractTextCapability.promise;
        promise = promise.then(() => {
          return this._pdfDocument.getPage(i + 1).then(pdfPage => {
            return pdfPage.getTextContent({
              normalizeWhitespace: true
            });
          }).then(textContent => {
            const textItems = textContent.items;
            const strBuf = [];
  
            for (let j = 0, jj = textItems.length; j < jj; j++) {
              strBuf.push(textItems[j].str);
            }
  
            this._pageContents[i] = normalize(strBuf.join(""));
            extractTextCapability.resolve(i);
          }, reason => {
            console.error(`Unable to get text content for page ${i + 1}`, reason);
            this._pageContents[i] = "";
            extractTextCapability.resolve(i);
          });
        });
      }
    }
  
    _updatePage(index) {
      if (this._scrollMatches && this._selected.pageIdx === index) {
        this._linkService.page = index + 1;
      }
  
      this._eventBus.dispatch("updatetextlayermatches", {
        source: this,
        pageIndex: index
      });
    }
  
    _updateAllPages() {
      this._eventBus.dispatch("updatetextlayermatches", {
        source: this,
        pageIndex: -1
      });
    }
  
    _nextMatch() {
      const previous = this._state.findPrevious;
      const currentPageIndex = this._linkService.page - 1;
      const numPages = this._linkService.pagesCount;
      this._highlightMatches = true;
  
      if (this._dirtyMatch) {
        this._dirtyMatch = false;
        this._selected.pageIdx = this._selected.matchIdx = -1;
        this._offset.pageIdx = currentPageIndex;
        this._offset.matchIdx = null;
        this._offset.wrapped = false;
        this._resumePageIdx = null;
        this._pageMatches.length = 0;
        this._pageMatchesLength.length = 0;
        this._matchesCountTotal = 0;
  
        this._updateAllPages();
  
        for (let i = 0; i < numPages; i++) {
          if (this._pendingFindMatches[i] === true) {
            continue;
          }
  
          this._pendingFindMatches[i] = true;
  
          this._extractTextPromises[i].then(pageIdx => {
            delete this._pendingFindMatches[pageIdx];
  
            this._calculateMatch(pageIdx);
          });
        }
      }
  
      if (this._query === "") {
        this._updateUIState(FindState.FOUND);
  
        return;
      }
  
      if (this._resumePageIdx) {
        return;
      }
  
      const offset = this._offset;
      this._pagesToSearch = numPages;
  
      if (offset.matchIdx !== null) {
        const numPageMatches = this._pageMatches[offset.pageIdx].length;
  
        if (!previous && offset.matchIdx + 1 < numPageMatches || previous && offset.matchIdx > 0) {
          offset.matchIdx = previous ? offset.matchIdx - 1 : offset.matchIdx + 1;
  
          this._updateMatch(true);
  
          return;
        }
  
        this._advanceOffsetPage(previous);
      }
  
      this._nextPageMatch();
    }
  
    _matchesReady(matches) {
      const offset = this._offset;
      const numMatches = matches.length;
      const previous = this._state.findPrevious;
  
      if (numMatches) {
        offset.matchIdx = previous ? numMatches - 1 : 0;
  
        this._updateMatch(true);
  
        return true;
      }
  
      this._advanceOffsetPage(previous);
  
      if (offset.wrapped) {
        offset.matchIdx = null;
  
        if (this._pagesToSearch < 0) {
          this._updateMatch(false);
  
          return true;
        }
      }
  
      return false;
    }
  
    _nextPageMatch() {
      if (this._resumePageIdx !== null) {
        console.error("There can only be one pending page.");
      }
  
      let matches = null;
  
      do {
        const pageIdx = this._offset.pageIdx;
        matches = this._pageMatches[pageIdx];
  
        if (!matches) {
          this._resumePageIdx = pageIdx;
          break;
        }
      } while (!this._matchesReady(matches));
    }
  
    _advanceOffsetPage(previous) {
      const offset = this._offset;
      const numPages = this._linkService.pagesCount;
      offset.pageIdx = previous ? offset.pageIdx - 1 : offset.pageIdx + 1;
      offset.matchIdx = null;
      this._pagesToSearch--;
  
      if (offset.pageIdx >= numPages || offset.pageIdx < 0) {
        offset.pageIdx = previous ? numPages - 1 : 0;
        offset.wrapped = true;
      }
    }
  
    _updateMatch(found = false) {
      let state = FindState.NOT_FOUND;
      const wrapped = this._offset.wrapped;
      this._offset.wrapped = false;
  
      if (found) {
        const previousPage = this._selected.pageIdx;
        this._selected.pageIdx = this._offset.pageIdx;
        this._selected.matchIdx = this._offset.matchIdx;
        state = wrapped ? FindState.WRAPPED : FindState.FOUND;
  
        if (previousPage !== -1 && previousPage !== this._selected.pageIdx) {
          this._updatePage(previousPage);
        }
      }
  
      this._updateUIState(state, this._state.findPrevious);
  
      if (this._selected.pageIdx !== -1) {
        this._scrollMatches = true;
  
        this._updatePage(this._selected.pageIdx);
      }
    }
  
    _onFindBarClose(evt) {
      const pdfDocument = this._pdfDocument;
  
      this._firstPageCapability.promise.then(() => {
        if (!this._pdfDocument || pdfDocument && this._pdfDocument !== pdfDocument) {
          return;
        }
  
        if (this._findTimeout) {
          clearTimeout(this._findTimeout);
          this._findTimeout = null;
        }
  
        if (this._resumePageIdx) {
          this._resumePageIdx = null;
          this._dirtyMatch = true;
        }
  
        this._updateUIState(FindState.FOUND);
  
        this._highlightMatches = false;
  
        this._updateAllPages();
      });
    }
  
    _requestMatchesCount() {
      const {
        pageIdx,
        matchIdx
      } = this._selected;
      let current = 0,
          total = this._matchesCountTotal;
  
      if (matchIdx !== -1) {
        for (let i = 0; i < pageIdx; i++) {
          current += this._pageMatches[i] && this._pageMatches[i].length || 0;
        }
  
        current += matchIdx + 1;
      }
  
      if (current < 1 || current > total) {
        current = total = 0;
      }
  
      return {
        current,
        total
      };
    }
  
    _updateUIResultsCount() {
      this._eventBus.dispatch("updatefindmatchescount", {
        source: this,
        matchesCount: this._requestMatchesCount()
      });
    }
  
    _updateUIState(state, previous) {
      this._eventBus.dispatch("updatefindcontrolstate", {
        source: this,
        state,
        previous,
        matchesCount: this._requestMatchesCount()
      });
    }
  
  }
  
  exports.PDFFindController = PDFFindController;
  
  /***/ }),
  /* 16 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.getCharacterType = getCharacterType;
  exports.CharacterType = void 0;
  const CharacterType = {
    SPACE: 0,
    ALPHA_LETTER: 1,
    PUNCT: 2,
    HAN_LETTER: 3,
    KATAKANA_LETTER: 4,
    HIRAGANA_LETTER: 5,
    HALFWIDTH_KATAKANA_LETTER: 6,
    THAI_LETTER: 7
  };
  exports.CharacterType = CharacterType;
  
  function isAlphabeticalScript(charCode) {
    return charCode < 0x2e80;
  }
  
  function isAscii(charCode) {
    return (charCode & 0xff80) === 0;
  }
  
  function isAsciiAlpha(charCode) {
    return charCode >= 0x61 && charCode <= 0x7a || charCode >= 0x41 && charCode <= 0x5a;
  }
  
  function isAsciiDigit(charCode) {
    return charCode >= 0x30 && charCode <= 0x39;
  }
  
  function isAsciiSpace(charCode) {
    return charCode === 0x20 || charCode === 0x09 || charCode === 0x0d || charCode === 0x0a;
  }
  
  function isHan(charCode) {
    return charCode >= 0x3400 && charCode <= 0x9fff || charCode >= 0xf900 && charCode <= 0xfaff;
  }
  
  function isKatakana(charCode) {
    return charCode >= 0x30a0 && charCode <= 0x30ff;
  }
  
  function isHiragana(charCode) {
    return charCode >= 0x3040 && charCode <= 0x309f;
  }
  
  function isHalfwidthKatakana(charCode) {
    return charCode >= 0xff60 && charCode <= 0xff9f;
  }
  
  function isThai(charCode) {
    return (charCode & 0xff80) === 0x0e00;
  }
  
  function getCharacterType(charCode) {
    if (isAlphabeticalScript(charCode)) {
      if (isAscii(charCode)) {
        if (isAsciiSpace(charCode)) {
          return CharacterType.SPACE;
        } else if (isAsciiAlpha(charCode) || isAsciiDigit(charCode) || charCode === 0x5f) {
          return CharacterType.ALPHA_LETTER;
        }
  
        return CharacterType.PUNCT;
      } else if (isThai(charCode)) {
        return CharacterType.THAI_LETTER;
      } else if (charCode === 0xa0) {
        return CharacterType.SPACE;
      }
  
      return CharacterType.ALPHA_LETTER;
    }
  
    if (isHan(charCode)) {
      return CharacterType.HAN_LETTER;
    } else if (isKatakana(charCode)) {
      return CharacterType.KATAKANA_LETTER;
    } else if (isHiragana(charCode)) {
      return CharacterType.HIRAGANA_LETTER;
    } else if (isHalfwidthKatakana(charCode)) {
      return CharacterType.HALFWIDTH_KATAKANA_LETTER;
    }
  
    return CharacterType.ALPHA_LETTER;
  }
  
  /***/ }),
  /* 17 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.isDestHashesEqual = isDestHashesEqual;
  exports.isDestArraysEqual = isDestArraysEqual;
  exports.PDFHistory = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  const HASH_CHANGE_TIMEOUT = 1000;
  const POSITION_UPDATED_THRESHOLD = 50;
  const UPDATE_VIEWAREA_TIMEOUT = 1000;
  
  function getCurrentHash() {
    return document.location.hash;
  }
  
  class PDFHistory {
    constructor({
      linkService,
      eventBus
    }) {
      this.linkService = linkService;
      this.eventBus = eventBus;
      this._initialized = false;
      this._fingerprint = "";
      this.reset();
      this._boundEvents = null;
      this._isViewerInPresentationMode = false;
  
      this.eventBus._on("presentationmodechanged", evt => {
        this._isViewerInPresentationMode = evt.active || evt.switchInProgress;
      });
  
      this.eventBus._on("pagesinit", () => {
        this._isPagesLoaded = false;
  
        const onPagesLoaded = evt => {
          this.eventBus._off("pagesloaded", onPagesLoaded);
  
          this._isPagesLoaded = !!evt.pagesCount;
        };
  
        this.eventBus._on("pagesloaded", onPagesLoaded);
      });
    }
  
    initialize({
      fingerprint,
      resetHistory = false,
      updateUrl = false
    }) {
      if (!fingerprint || typeof fingerprint !== "string") {
        console.error('PDFHistory.initialize: The "fingerprint" must be a non-empty string.');
        return;
      }
  
      if (this._initialized) {
        this.reset();
      }
  
      const reInitialized = this._fingerprint !== "" && this._fingerprint !== fingerprint;
      this._fingerprint = fingerprint;
      this._updateUrl = updateUrl === true;
      this._initialized = true;
  
      this._bindEvents();
  
      const state = window.history.state;
      this._popStateInProgress = false;
      this._blockHashChange = 0;
      this._currentHash = getCurrentHash();
      this._numPositionUpdates = 0;
      this._uid = this._maxUid = 0;
      this._destination = null;
      this._position = null;
  
      if (!this._isValidState(state, true) || resetHistory) {
        const {
          hash,
          page,
          rotation
        } = this._parseCurrentHash(true);
  
        if (!hash || reInitialized || resetHistory) {
          this._pushOrReplaceState(null, true);
  
          return;
        }
  
        this._pushOrReplaceState({
          hash,
          page,
          rotation
        }, true);
  
        return;
      }
  
      const destination = state.destination;
  
      this._updateInternalState(destination, state.uid, true);
  
      if (this._uid > this._maxUid) {
        this._maxUid = this._uid;
      }
  
      if (destination.rotation !== undefined) {
        this._initialRotation = destination.rotation;
      }
  
      if (destination.dest) {
        this._initialBookmark = JSON.stringify(destination.dest);
        this._destination.page = null;
      } else if (destination.hash) {
        this._initialBookmark = destination.hash;
      } else if (destination.page) {
        this._initialBookmark = `page=${destination.page}`;
      }
    }
  
    reset() {
      if (this._initialized) {
        this._pageHide();
  
        this._initialized = false;
  
        this._unbindEvents();
      }
  
      if (this._updateViewareaTimeout) {
        clearTimeout(this._updateViewareaTimeout);
        this._updateViewareaTimeout = null;
      }
  
      this._initialBookmark = null;
      this._initialRotation = null;
    }
  
    push({
      namedDest = null,
      explicitDest,
      pageNumber
    }) {
      if (!this._initialized) {
        return;
      }
  
      if (namedDest && typeof namedDest !== "string") {
        console.error("PDFHistory.push: " + `"${namedDest}" is not a valid namedDest parameter.`);
        return;
      } else if (!Array.isArray(explicitDest)) {
        console.error("PDFHistory.push: " + `"${explicitDest}" is not a valid explicitDest parameter.`);
        return;
      } else if (!(Number.isInteger(pageNumber) && pageNumber > 0 && pageNumber <= this.linkService.pagesCount)) {
        if (pageNumber !== null || this._destination) {
          console.error("PDFHistory.push: " + `"${pageNumber}" is not a valid pageNumber parameter.`);
          return;
        }
      }
  
      const hash = namedDest || JSON.stringify(explicitDest);
  
      if (!hash) {
        return;
      }
  
      let forceReplace = false;
  
      if (this._destination && (isDestHashesEqual(this._destination.hash, hash) || isDestArraysEqual(this._destination.dest, explicitDest))) {
        if (this._destination.page) {
          return;
        }
  
        forceReplace = true;
      }
  
      if (this._popStateInProgress && !forceReplace) {
        return;
      }
  
      this._pushOrReplaceState({
        dest: explicitDest,
        hash,
        page: pageNumber,
        rotation: this.linkService.rotation
      }, forceReplace);
  
      if (!this._popStateInProgress) {
        this._popStateInProgress = true;
        Promise.resolve().then(() => {
          this._popStateInProgress = false;
        });
      }
    }
  
    pushCurrentPosition() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }
  
      this._tryPushCurrentPosition();
    }
  
    back() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }
  
      const state = window.history.state;
  
      if (this._isValidState(state) && state.uid > 0) {
        window.history.back();
      }
    }
  
    forward() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }
  
      const state = window.history.state;
  
      if (this._isValidState(state) && state.uid < this._maxUid) {
        window.history.forward();
      }
    }
  
    get popStateInProgress() {
      return this._initialized && (this._popStateInProgress || this._blockHashChange > 0);
    }
  
    get initialBookmark() {
      return this._initialized ? this._initialBookmark : null;
    }
  
    get initialRotation() {
      return this._initialized ? this._initialRotation : null;
    }
  
    _pushOrReplaceState(destination, forceReplace = false) {
      const shouldReplace = forceReplace || !this._destination;
      const newState = {
        fingerprint: this._fingerprint,
        uid: shouldReplace ? this._uid : this._uid + 1,
        destination
      };
  
      this._updateInternalState(destination, newState.uid);
  
      let newUrl;
  
      if (this._updateUrl && destination && destination.hash) {
        const baseUrl = document.location.href.split("#")[0];
  
        if (!baseUrl.startsWith("file://")) {
          newUrl = `${baseUrl}#${destination.hash}`;
        }
      }
  
      if (shouldReplace) {
        window.history.replaceState(newState, "", newUrl);
      } else {
        this._maxUid = this._uid;
        window.history.pushState(newState, "", newUrl);
      }
    }
  
    _tryPushCurrentPosition(temporary = false) {
      if (!this._position) {
        return;
      }
  
      let position = this._position;
  
      if (temporary) {
        position = Object.assign(Object.create(null), this._position);
        position.temporary = true;
      }
  
      if (!this._destination) {
        this._pushOrReplaceState(position);
  
        return;
      }
  
      if (this._destination.temporary) {
        this._pushOrReplaceState(position, true);
  
        return;
      }
  
      if (this._destination.hash === position.hash) {
        return;
      }
  
      if (!this._destination.page && (POSITION_UPDATED_THRESHOLD <= 0 || this._numPositionUpdates <= POSITION_UPDATED_THRESHOLD)) {
        return;
      }
  
      let forceReplace = false;
  
      if (this._destination.page >= position.first && this._destination.page <= position.page) {
        if (this._destination.dest || !this._destination.first) {
          return;
        }
  
        forceReplace = true;
      }
  
      this._pushOrReplaceState(position, forceReplace);
    }
  
    _isValidState(state, checkReload = false) {
      if (!state) {
        return false;
      }
  
      if (state.fingerprint !== this._fingerprint) {
        if (checkReload) {
          if (typeof state.fingerprint !== "string" || state.fingerprint.length !== this._fingerprint.length) {
            return false;
          }
  
          const [perfEntry] = performance.getEntriesByType("navigation");
  
          if (!perfEntry || perfEntry.type !== "reload") {
            return false;
          }
        } else {
          return false;
        }
      }
  
      if (!Number.isInteger(state.uid) || state.uid < 0) {
        return false;
      }
  
      if (state.destination === null || typeof state.destination !== "object") {
        return false;
      }
  
      return true;
    }
  
    _updateInternalState(destination, uid, removeTemporary = false) {
      if (this._updateViewareaTimeout) {
        clearTimeout(this._updateViewareaTimeout);
        this._updateViewareaTimeout = null;
      }
  
      if (removeTemporary && destination && destination.temporary) {
        delete destination.temporary;
      }
  
      this._destination = destination;
      this._uid = uid;
      this._numPositionUpdates = 0;
    }
  
    _parseCurrentHash(checkNameddest = false) {
      const hash = unescape(getCurrentHash()).substring(1);
      const params = (0, _ui_utils.parseQueryString)(hash);
      const nameddest = params.nameddest || "";
      let page = params.page | 0;
  
      if (!(Number.isInteger(page) && page > 0 && page <= this.linkService.pagesCount) || checkNameddest && nameddest.length > 0) {
        page = null;
      }
  
      return {
        hash,
        page,
        rotation: this.linkService.rotation
      };
    }
  
    _updateViewarea({
      location
    }) {
      if (this._updateViewareaTimeout) {
        clearTimeout(this._updateViewareaTimeout);
        this._updateViewareaTimeout = null;
      }
  
      this._position = {
        hash: this._isViewerInPresentationMode ? `page=${location.pageNumber}` : location.pdfOpenParams.substring(1),
        page: this.linkService.page,
        first: location.pageNumber,
        rotation: location.rotation
      };
  
      if (this._popStateInProgress) {
        return;
      }
  
      if (POSITION_UPDATED_THRESHOLD > 0 && this._isPagesLoaded && this._destination && !this._destination.page) {
        this._numPositionUpdates++;
      }
  
      if (UPDATE_VIEWAREA_TIMEOUT > 0) {
        this._updateViewareaTimeout = setTimeout(() => {
          if (!this._popStateInProgress) {
            this._tryPushCurrentPosition(true);
          }
  
          this._updateViewareaTimeout = null;
        }, UPDATE_VIEWAREA_TIMEOUT);
      }
    }
  
    _popState({
      state
    }) {
      const newHash = getCurrentHash(),
            hashChanged = this._currentHash !== newHash;
      this._currentHash = newHash;
  
      if (!state) {
        this._uid++;
  
        const {
          hash,
          page,
          rotation
        } = this._parseCurrentHash();
  
        this._pushOrReplaceState({
          hash,
          page,
          rotation
        }, true);
  
        return;
      }
  
      if (!this._isValidState(state)) {
        return;
      }
  
      this._popStateInProgress = true;
  
      if (hashChanged) {
        this._blockHashChange++;
        (0, _ui_utils.waitOnEventOrTimeout)({
          target: window,
          name: "hashchange",
          delay: HASH_CHANGE_TIMEOUT
        }).then(() => {
          this._blockHashChange--;
        });
      }
  
      const destination = state.destination;
  
      this._updateInternalState(destination, state.uid, true);
  
      if (this._uid > this._maxUid) {
        this._maxUid = this._uid;
      }
  
      if ((0, _ui_utils.isValidRotation)(destination.rotation)) {
        this.linkService.rotation = destination.rotation;
      }
  
      if (destination.dest) {
        this.linkService.navigateTo(destination.dest);
      } else if (destination.hash) {
        this.linkService.setHash(destination.hash);
      } else if (destination.page) {
        this.linkService.page = destination.page;
      }
  
      Promise.resolve().then(() => {
        this._popStateInProgress = false;
      });
    }
  
    _pageHide() {
      if (!this._destination || this._destination.temporary) {
        this._tryPushCurrentPosition();
      }
    }
  
    _bindEvents() {
      if (this._boundEvents) {
        return;
      }
  
      this._boundEvents = {
        updateViewarea: this._updateViewarea.bind(this),
        popState: this._popState.bind(this),
        pageHide: this._pageHide.bind(this)
      };
  
      this.eventBus._on("updateviewarea", this._boundEvents.updateViewarea);
  
      window.addEventListener("popstate", this._boundEvents.popState);
      window.addEventListener("pagehide", this._boundEvents.pageHide);
    }
  
    _unbindEvents() {
      if (!this._boundEvents) {
        return;
      }
  
      this.eventBus._off("updateviewarea", this._boundEvents.updateViewarea);
  
      window.removeEventListener("popstate", this._boundEvents.popState);
      window.removeEventListener("pagehide", this._boundEvents.pageHide);
      this._boundEvents = null;
    }
  
  }
  
  exports.PDFHistory = PDFHistory;
  
  function isDestHashesEqual(destHash, pushHash) {
    if (typeof destHash !== "string" || typeof pushHash !== "string") {
      return false;
    }
  
    if (destHash === pushHash) {
      return true;
    }
  
    const {
      nameddest
    } = (0, _ui_utils.parseQueryString)(destHash);
  
    if (nameddest === pushHash) {
      return true;
    }
  
    return false;
  }
  
  function isDestArraysEqual(firstDest, secondDest) {
    function isEntryEqual(first, second) {
      if (typeof first !== typeof second) {
        return false;
      }
  
      if (Array.isArray(first) || Array.isArray(second)) {
        return false;
      }
  
      if (first !== null && typeof first === "object" && second !== null) {
        if (Object.keys(first).length !== Object.keys(second).length) {
          return false;
        }
  
        for (const key in first) {
          if (!isEntryEqual(first[key], second[key])) {
            return false;
          }
        }
  
        return true;
      }
  
      return first === second || Number.isNaN(first) && Number.isNaN(second);
    }
  
    if (!(Array.isArray(firstDest) && Array.isArray(secondDest))) {
      return false;
    }
  
    if (firstDest.length !== secondDest.length) {
      return false;
    }
  
    for (let i = 0, ii = firstDest.length; i < ii; i++) {
      if (!isEntryEqual(firstDest[i], secondDest[i])) {
        return false;
      }
    }
  
    return true;
  }
  
  /***/ }),
  /* 18 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.SimpleLinkService = exports.PDFLinkService = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  class PDFLinkService {
    constructor({
      eventBus,
      externalLinkTarget = null,
      externalLinkRel = null,
      externalLinkEnabled = true,
      ignoreDestinationZoom = false
    } = {}) {
      this.eventBus = eventBus;
      this.externalLinkTarget = externalLinkTarget;
      this.externalLinkRel = externalLinkRel;
      this.externalLinkEnabled = externalLinkEnabled;
      this._ignoreDestinationZoom = ignoreDestinationZoom;
      this.baseUrl = null;
      this.pdfDocument = null;
      this.pdfViewer = null;
      this.pdfHistory = null;
      this._pagesRefCache = null;
    }
  
    setDocument(pdfDocument, baseUrl = null) {
      this.baseUrl = baseUrl;
      this.pdfDocument = pdfDocument;
      this._pagesRefCache = Object.create(null);
    }
  
    setViewer(pdfViewer) {
      this.pdfViewer = pdfViewer;
    }
  
    setHistory(pdfHistory) {
      this.pdfHistory = pdfHistory;
    }
  
    get pagesCount() {
      return this.pdfDocument ? this.pdfDocument.numPages : 0;
    }
  
    get page() {
      return this.pdfViewer.currentPageNumber;
    }
  
    set page(value) {
      this.pdfViewer.currentPageNumber = value;
    }
  
    get rotation() {
      return this.pdfViewer.pagesRotation;
    }
  
    set rotation(value) {
      this.pdfViewer.pagesRotation = value;
    }
  
    navigateTo(dest) {
      const goToDestination = ({
        namedDest,
        explicitDest
      }) => {
        const destRef = explicitDest[0];
        let pageNumber;
  
        if (destRef instanceof Object) {
          pageNumber = this._cachedPageNumber(destRef);
  
          if (pageNumber === null) {
            this.pdfDocument.getPageIndex(destRef).then(pageIndex => {
              this.cachePageRef(pageIndex + 1, destRef);
              goToDestination({
                namedDest,
                explicitDest
              });
            }).catch(() => {
              console.error(`PDFLinkService.navigateTo: "${destRef}" is not ` + `a valid page reference, for dest="${dest}".`);
            });
            return;
          }
        } else if (Number.isInteger(destRef)) {
          pageNumber = destRef + 1;
        } else {
          console.error(`PDFLinkService.navigateTo: "${destRef}" is not ` + `a valid destination reference, for dest="${dest}".`);
          return;
        }
  
        if (!pageNumber || pageNumber < 1 || pageNumber > this.pagesCount) {
          console.error(`PDFLinkService.navigateTo: "${pageNumber}" is not ` + `a valid page number, for dest="${dest}".`);
          return;
        }
  
        if (this.pdfHistory) {
          this.pdfHistory.pushCurrentPosition();
          this.pdfHistory.push({
            namedDest,
            explicitDest,
            pageNumber
          });
        }
  
        this.pdfViewer.scrollPageIntoView({
          pageNumber,
          destArray: explicitDest,
          ignoreDestinationZoom: this._ignoreDestinationZoom
        });
      };
  
      new Promise((resolve, reject) => {
        if (typeof dest === "string") {
          this.pdfDocument.getDestination(dest).then(destArray => {
            resolve({
              namedDest: dest,
              explicitDest: destArray
            });
          });
          return;
        }
  
        resolve({
          namedDest: "",
          explicitDest: dest
        });
      }).then(data => {
        if (!Array.isArray(data.explicitDest)) {
          console.error(`PDFLinkService.navigateTo: "${data.explicitDest}" is` + ` not a valid destination array, for dest="${dest}".`);
          return;
        }
  
        goToDestination(data);
      });
    }
  
    getDestinationHash(dest) {
      if (typeof dest === "string") {
        return this.getAnchorUrl("#" + escape(dest));
      }
  
      if (Array.isArray(dest)) {
        const str = JSON.stringify(dest);
        return this.getAnchorUrl("#" + escape(str));
      }
  
      return this.getAnchorUrl("");
    }
  
    getAnchorUrl(anchor) {
      return (this.baseUrl || "") + anchor;
    }
  
    setHash(hash) {
      let pageNumber, dest;
  
      if (hash.includes("=")) {
        const params = (0, _ui_utils.parseQueryString)(hash);
  
        if ("search" in params) {
          this.eventBus.dispatch("findfromurlhash", {
            source: this,
            query: params.search.replace(/"/g, ""),
            phraseSearch: params.phrase === "true"
          });
        }
  
        if ("page" in params) {
          pageNumber = params.page | 0 || 1;
        }
  
        if ("zoom" in params) {
          const zoomArgs = params.zoom.split(",");
          const zoomArg = zoomArgs[0];
          const zoomArgNumber = parseFloat(zoomArg);
  
          if (!zoomArg.includes("Fit")) {
            dest = [null, {
              name: "XYZ"
            }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null, zoomArgs.length > 2 ? zoomArgs[2] | 0 : null, zoomArgNumber ? zoomArgNumber / 100 : zoomArg];
          } else {
            if (zoomArg === "Fit" || zoomArg === "FitB") {
              dest = [null, {
                name: zoomArg
              }];
            } else if (zoomArg === "FitH" || zoomArg === "FitBH" || zoomArg === "FitV" || zoomArg === "FitBV") {
              dest = [null, {
                name: zoomArg
              }, zoomArgs.length > 1 ? zoomArgs[1] | 0 : null];
            } else if (zoomArg === "FitR") {
              if (zoomArgs.length !== 5) {
                console.error('PDFLinkService.setHash: Not enough parameters for "FitR".');
              } else {
                dest = [null, {
                  name: zoomArg
                }, zoomArgs[1] | 0, zoomArgs[2] | 0, zoomArgs[3] | 0, zoomArgs[4] | 0];
              }
            } else {
              console.error(`PDFLinkService.setHash: "${zoomArg}" is not ` + "a valid zoom value.");
            }
          }
        }
  
        if (dest) {
          this.pdfViewer.scrollPageIntoView({
            pageNumber: pageNumber || this.page,
            destArray: dest,
            allowNegativeOffset: true
          });
        } else if (pageNumber) {
          this.page = pageNumber;
        }
  
        if ("pagemode" in params) {
          this.eventBus.dispatch("pagemode", {
            source: this,
            mode: params.pagemode
          });
        }
  
        if ("nameddest" in params) {
          this.navigateTo(params.nameddest);
        }
      } else {
        dest = unescape(hash);
  
        try {
          dest = JSON.parse(dest);
  
          if (!Array.isArray(dest)) {
            dest = dest.toString();
          }
        } catch (ex) {}
  
        if (typeof dest === "string" || isValidExplicitDestination(dest)) {
          this.navigateTo(dest);
          return;
        }
  
        console.error(`PDFLinkService.setHash: "${unescape(hash)}" is not ` + "a valid destination.");
      }
    }
  
    executeNamedAction(action) {
      switch (action) {
        case "GoBack":
          if (this.pdfHistory) {
            this.pdfHistory.back();
          }
  
          break;
  
        case "GoForward":
          if (this.pdfHistory) {
            this.pdfHistory.forward();
          }
  
          break;
  
        case "NextPage":
          if (this.page < this.pagesCount) {
            this.page++;
          }
  
          break;
  
        case "PrevPage":
          if (this.page > 1) {
            this.page--;
          }
  
          break;
  
        case "LastPage":
          this.page = this.pagesCount;
          break;
  
        case "FirstPage":
          this.page = 1;
          break;
  
        default:
          break;
      }
  
      this.eventBus.dispatch("namedaction", {
        source: this,
        action
      });
    }
  
    cachePageRef(pageNum, pageRef) {
      if (!pageRef) {
        return;
      }
  
      const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`;
      this._pagesRefCache[refStr] = pageNum;
    }
  
    _cachedPageNumber(pageRef) {
      const refStr = pageRef.gen === 0 ? `${pageRef.num}R` : `${pageRef.num}R${pageRef.gen}`;
      return this._pagesRefCache && this._pagesRefCache[refStr] || null;
    }
  
    isPageVisible(pageNumber) {
      return this.pdfViewer.isPageVisible(pageNumber);
    }
  
  }
  
  exports.PDFLinkService = PDFLinkService;
  
  function isValidExplicitDestination(dest) {
    if (!Array.isArray(dest)) {
      return false;
    }
  
    const destLength = dest.length;
  
    if (destLength < 2) {
      return false;
    }
  
    const page = dest[0];
  
    if (!(typeof page === "object" && Number.isInteger(page.num) && Number.isInteger(page.gen)) && !(Number.isInteger(page) && page >= 0)) {
      return false;
    }
  
    const zoom = dest[1];
  
    if (!(typeof zoom === "object" && typeof zoom.name === "string")) {
      return false;
    }
  
    let allowNull = true;
  
    switch (zoom.name) {
      case "XYZ":
        if (destLength !== 5) {
          return false;
        }
  
        break;
  
      case "Fit":
      case "FitB":
        return destLength === 2;
  
      case "FitH":
      case "FitBH":
      case "FitV":
      case "FitBV":
        if (destLength !== 3) {
          return false;
        }
  
        break;
  
      case "FitR":
        if (destLength !== 6) {
          return false;
        }
  
        allowNull = false;
        break;
  
      default:
        return false;
    }
  
    for (let i = 2; i < destLength; i++) {
      const param = dest[i];
  
      if (!(typeof param === "number" || allowNull && param === null)) {
        return false;
      }
    }
  
    return true;
  }
  
  class SimpleLinkService {
    constructor() {
      this.externalLinkTarget = null;
      this.externalLinkRel = null;
      this.externalLinkEnabled = true;
      this._ignoreDestinationZoom = false;
    }
  
    get pagesCount() {
      return 0;
    }
  
    get page() {
      return 0;
    }
  
    set page(value) {}
  
    get rotation() {
      return 0;
    }
  
    set rotation(value) {}
  
    navigateTo(dest) {}
  
    getDestinationHash(dest) {
      return "#";
    }
  
    getAnchorUrl(hash) {
      return "#";
    }
  
    setHash(hash) {}
  
    executeNamedAction(action) {}
  
    cachePageRef(pageNum, pageRef) {}
  
    isPageVisible(pageNumber) {
      return true;
    }
  
  }
  
  exports.SimpleLinkService = SimpleLinkService;
  
  /***/ }),
  /* 19 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFOutlineViewer = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  const DEFAULT_TITLE = "\u2013";
  
  class PDFOutlineViewer {
    constructor({
      container,
      linkService,
      eventBus
    }) {
      this.container = container;
      this.linkService = linkService;
      this.eventBus = eventBus;
      this.reset();
  
      eventBus._on("toggleoutlinetree", this.toggleOutlineTree.bind(this));
    }
  
    reset() {
      this.outline = null;
      this.lastToggleIsShow = true;
      this.container.textContent = "";
      this.container.classList.remove("outlineWithDeepNesting");
    }
  
    _dispatchEvent(outlineCount) {
      this.eventBus.dispatch("outlineloaded", {
        source: this,
        outlineCount
      });
    }
  
    _bindLink(element, {
      url,
      newWindow,
      dest
    }) {
      const {
        linkService
      } = this;
  
      if (url) {
        (0, _pdfjsLib.addLinkAttributes)(element, {
          url,
          target: newWindow ? _pdfjsLib.LinkTarget.BLANK : linkService.externalLinkTarget,
          rel: linkService.externalLinkRel,
          enabled: linkService.externalLinkEnabled
        });
        return;
      }
  
      element.href = linkService.getDestinationHash(dest);
  
      element.onclick = () => {
        if (dest) {
          linkService.navigateTo(dest);
        }
  
        return false;
      };
    }
  
    _setStyles(element, {
      bold,
      italic
    }) {
      if (bold) {
        element.style.fontWeight = "bold";
      }
  
      if (italic) {
        element.style.fontStyle = "italic";
      }
    }
  
    _addToggleButton(div, {
      count,
      items
    }) {
      const toggler = document.createElement("div");
      toggler.className = "outlineItemToggler";
  
      if (count < 0 && Math.abs(count) === items.length) {
        toggler.classList.add("outlineItemsHidden");
      }
  
      toggler.onclick = evt => {
        evt.stopPropagation();
        toggler.classList.toggle("outlineItemsHidden");
  
        if (evt.shiftKey) {
          const shouldShowAll = !toggler.classList.contains("outlineItemsHidden");
  
          this._toggleOutlineItem(div, shouldShowAll);
        }
      };
  
      div.insertBefore(toggler, div.firstChild);
    }
  
    _toggleOutlineItem(root, show = false) {
      this.lastToggleIsShow = show;
  
      for (const toggler of root.querySelectorAll(".outlineItemToggler")) {
        toggler.classList.toggle("outlineItemsHidden", !show);
      }
    }
  
    toggleOutlineTree() {
      if (!this.outline) {
        return;
      }
  
      this._toggleOutlineItem(this.container, !this.lastToggleIsShow);
    }
  
    render({
      outline
    }) {
      let outlineCount = 0;
  
      if (this.outline) {
        this.reset();
      }
  
      this.outline = outline || null;
  
      if (!outline) {
        this._dispatchEvent(outlineCount);
  
        return;
      }
  
      const fragment = document.createDocumentFragment();
      const queue = [{
        parent: fragment,
        items: this.outline
      }];
      let hasAnyNesting = false;
  
      while (queue.length > 0) {
        const levelData = queue.shift();
  
        for (const item of levelData.items) {
          const div = document.createElement("div");
          div.className = "outlineItem";
          const element = document.createElement("a");
  
          this._bindLink(element, item);
  
          this._setStyles(element, item);
  
          element.textContent = (0, _pdfjsLib.removeNullCharacters)(item.title) || DEFAULT_TITLE;
          div.appendChild(element);
  
          if (item.items.length > 0) {
            hasAnyNesting = true;
  
            this._addToggleButton(div, item);
  
            const itemsDiv = document.createElement("div");
            itemsDiv.className = "outlineItems";
            div.appendChild(itemsDiv);
            queue.push({
              parent: itemsDiv,
              items: item.items
            });
          }
  
          levelData.parent.appendChild(div);
          outlineCount++;
        }
      }
  
      if (hasAnyNesting) {
        this.container.classList.add("outlineWithDeepNesting");
        this.lastToggleIsShow = fragment.querySelectorAll(".outlineItemsHidden").length === 0;
      }
  
      this.container.appendChild(fragment);
  
      this._dispatchEvent(outlineCount);
    }
  
  }
  
  exports.PDFOutlineViewer = PDFOutlineViewer;
  
  /***/ }),
  /* 20 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFPresentationMode = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  const DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1500;
  const DELAY_BEFORE_HIDING_CONTROLS = 3000;
  const ACTIVE_SELECTOR = "pdfPresentationMode";
  const CONTROLS_SELECTOR = "pdfPresentationModeControls";
  const MOUSE_SCROLL_COOLDOWN_TIME = 50;
  const PAGE_SWITCH_THRESHOLD = 0.1;
  const SWIPE_MIN_DISTANCE_THRESHOLD = 50;
  const SWIPE_ANGLE_THRESHOLD = Math.PI / 6;
  
  class PDFPresentationMode {
    constructor({
      container,
      pdfViewer,
      eventBus,
      contextMenuItems = null
    }) {
      this.container = container;
      this.pdfViewer = pdfViewer;
      this.eventBus = eventBus;
      this.active = false;
      this.args = null;
      this.contextMenuOpen = false;
      this.mouseScrollTimeStamp = 0;
      this.mouseScrollDelta = 0;
      this.touchSwipeState = null;
  
      if (contextMenuItems) {
        contextMenuItems.contextFirstPage.addEventListener("click", () => {
          this.contextMenuOpen = false;
          this.eventBus.dispatch("firstpage", {
            source: this
          });
        });
        contextMenuItems.contextLastPage.addEventListener("click", () => {
          this.contextMenuOpen = false;
          this.eventBus.dispatch("lastpage", {
            source: this
          });
        });
        contextMenuItems.contextPageRotateCw.addEventListener("click", () => {
          this.contextMenuOpen = false;
          this.eventBus.dispatch("rotatecw", {
            source: this
          });
        });
        contextMenuItems.contextPageRotateCcw.addEventListener("click", () => {
          this.contextMenuOpen = false;
          this.eventBus.dispatch("rotateccw", {
            source: this
          });
        });
      }
    }
  
    request() {
      if (this.switchInProgress || this.active || !this.pdfViewer.pagesCount) {
        return false;
      }
  
      this._addFullscreenChangeListeners();
  
      this._setSwitchInProgress();
  
      this._notifyStateChange();
  
      if (this.container.requestFullscreen) {
        this.container.requestFullscreen();
      } else if (this.container.mozRequestFullScreen) {
        this.container.mozRequestFullScreen();
      } else if (this.container.webkitRequestFullscreen) {
        this.container.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
      } else if (this.container.msRequestFullscreen) {
        this.container.msRequestFullscreen();
      } else {
        return false;
      }
  
      this.args = {
        page: this.pdfViewer.currentPageNumber,
        previousScale: this.pdfViewer.currentScaleValue
      };
      return true;
    }
  
    _mouseWheel(evt) {
      if (!this.active) {
        return;
      }
  
      evt.preventDefault();
      const delta = (0, _ui_utils.normalizeWheelEventDelta)(evt);
      const currentTime = new Date().getTime();
      const storedTime = this.mouseScrollTimeStamp;
  
      if (currentTime > storedTime && currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) {
        return;
      }
  
      if (this.mouseScrollDelta > 0 && delta < 0 || this.mouseScrollDelta < 0 && delta > 0) {
        this._resetMouseScrollState();
      }
  
      this.mouseScrollDelta += delta;
  
      if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
        const totalDelta = this.mouseScrollDelta;
  
        this._resetMouseScrollState();
  
        const success = totalDelta > 0 ? this._goToPreviousPage() : this._goToNextPage();
  
        if (success) {
          this.mouseScrollTimeStamp = currentTime;
        }
      }
    }
  
    get isFullscreen() {
      return !!(document.fullscreenElement || document.mozFullScreen || document.webkitIsFullScreen || document.msFullscreenElement);
    }
  
    _goToPreviousPage() {
      const page = this.pdfViewer.currentPageNumber;
  
      if (page <= 1) {
        return false;
      }
  
      this.pdfViewer.currentPageNumber = page - 1;
      return true;
    }
  
    _goToNextPage() {
      const page = this.pdfViewer.currentPageNumber;
  
      if (page >= this.pdfViewer.pagesCount) {
        return false;
      }
  
      this.pdfViewer.currentPageNumber = page + 1;
      return true;
    }
  
    _notifyStateChange() {
      this.eventBus.dispatch("presentationmodechanged", {
        source: this,
        active: this.active,
        switchInProgress: !!this.switchInProgress
      });
    }
  
    _setSwitchInProgress() {
      if (this.switchInProgress) {
        clearTimeout(this.switchInProgress);
      }
  
      this.switchInProgress = setTimeout(() => {
        this._removeFullscreenChangeListeners();
  
        delete this.switchInProgress;
  
        this._notifyStateChange();
      }, DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
    }
  
    _resetSwitchInProgress() {
      if (this.switchInProgress) {
        clearTimeout(this.switchInProgress);
        delete this.switchInProgress;
      }
    }
  
    _enter() {
      this.active = true;
  
      this._resetSwitchInProgress();
  
      this._notifyStateChange();
  
      this.container.classList.add(ACTIVE_SELECTOR);
      setTimeout(() => {
        this.pdfViewer.currentPageNumber = this.args.page;
        this.pdfViewer.currentScaleValue = "page-fit";
      }, 0);
  
      this._addWindowListeners();
  
      this._showControls();
  
      this.contextMenuOpen = false;
      this.container.setAttribute("contextmenu", "viewerContextMenu");
      window.getSelection().removeAllRanges();
    }
  
    _exit() {
      const page = this.pdfViewer.currentPageNumber;
      this.container.classList.remove(ACTIVE_SELECTOR);
      setTimeout(() => {
        this.active = false;
  
        this._removeFullscreenChangeListeners();
  
        this._notifyStateChange();
  
        this.pdfViewer.currentScaleValue = this.args.previousScale;
        this.pdfViewer.currentPageNumber = page;
        this.args = null;
      }, 0);
  
      this._removeWindowListeners();
  
      this._hideControls();
  
      this._resetMouseScrollState();
  
      this.container.removeAttribute("contextmenu");
      this.contextMenuOpen = false;
    }
  
    _mouseDown(evt) {
      if (this.contextMenuOpen) {
        this.contextMenuOpen = false;
        evt.preventDefault();
        return;
      }
  
      if (evt.button === 0) {
        const isInternalLink = evt.target.href && evt.target.classList.contains("internalLink");
  
        if (!isInternalLink) {
          evt.preventDefault();
  
          if (evt.shiftKey) {
            this._goToPreviousPage();
          } else {
            this._goToNextPage();
          }
        }
      }
    }
  
    _contextMenu() {
      this.contextMenuOpen = true;
    }
  
    _showControls() {
      if (this.controlsTimeout) {
        clearTimeout(this.controlsTimeout);
      } else {
        this.container.classList.add(CONTROLS_SELECTOR);
      }
  
      this.controlsTimeout = setTimeout(() => {
        this.container.classList.remove(CONTROLS_SELECTOR);
        delete this.controlsTimeout;
      }, DELAY_BEFORE_HIDING_CONTROLS);
    }
  
    _hideControls() {
      if (!this.controlsTimeout) {
        return;
      }
  
      clearTimeout(this.controlsTimeout);
      this.container.classList.remove(CONTROLS_SELECTOR);
      delete this.controlsTimeout;
    }
  
    _resetMouseScrollState() {
      this.mouseScrollTimeStamp = 0;
      this.mouseScrollDelta = 0;
    }
  
    _touchSwipe(evt) {
      if (!this.active) {
        return;
      }
  
      if (evt.touches.length > 1) {
        this.touchSwipeState = null;
        return;
      }
  
      switch (evt.type) {
        case "touchstart":
          this.touchSwipeState = {
            startX: evt.touches[0].pageX,
            startY: evt.touches[0].pageY,
            endX: evt.touches[0].pageX,
            endY: evt.touches[0].pageY
          };
          break;
  
        case "touchmove":
          if (this.touchSwipeState === null) {
            return;
          }
  
          this.touchSwipeState.endX = evt.touches[0].pageX;
          this.touchSwipeState.endY = evt.touches[0].pageY;
          evt.preventDefault();
          break;
  
        case "touchend":
          if (this.touchSwipeState === null) {
            return;
          }
  
          let delta = 0;
          const dx = this.touchSwipeState.endX - this.touchSwipeState.startX;
          const dy = this.touchSwipeState.endY - this.touchSwipeState.startY;
          const absAngle = Math.abs(Math.atan2(dy, dx));
  
          if (Math.abs(dx) > SWIPE_MIN_DISTANCE_THRESHOLD && (absAngle <= SWIPE_ANGLE_THRESHOLD || absAngle >= Math.PI - SWIPE_ANGLE_THRESHOLD)) {
            delta = dx;
          } else if (Math.abs(dy) > SWIPE_MIN_DISTANCE_THRESHOLD && Math.abs(absAngle - Math.PI / 2) <= SWIPE_ANGLE_THRESHOLD) {
            delta = dy;
          }
  
          if (delta > 0) {
            this._goToPreviousPage();
          } else if (delta < 0) {
            this._goToNextPage();
          }
  
          break;
      }
    }
  
    _addWindowListeners() {
      this.showControlsBind = this._showControls.bind(this);
      this.mouseDownBind = this._mouseDown.bind(this);
      this.mouseWheelBind = this._mouseWheel.bind(this);
      this.resetMouseScrollStateBind = this._resetMouseScrollState.bind(this);
      this.contextMenuBind = this._contextMenu.bind(this);
      this.touchSwipeBind = this._touchSwipe.bind(this);
      window.addEventListener("mousemove", this.showControlsBind);
      window.addEventListener("mousedown", this.mouseDownBind);
      window.addEventListener("wheel", this.mouseWheelBind, {
        passive: false
      });
      window.addEventListener("keydown", this.resetMouseScrollStateBind);
      window.addEventListener("contextmenu", this.contextMenuBind);
      window.addEventListener("touchstart", this.touchSwipeBind);
      window.addEventListener("touchmove", this.touchSwipeBind);
      window.addEventListener("touchend", this.touchSwipeBind);
    }
  
    _removeWindowListeners() {
      window.removeEventListener("mousemove", this.showControlsBind);
      window.removeEventListener("mousedown", this.mouseDownBind);
      window.removeEventListener("wheel", this.mouseWheelBind, {
        passive: false
      });
      window.removeEventListener("keydown", this.resetMouseScrollStateBind);
      window.removeEventListener("contextmenu", this.contextMenuBind);
      window.removeEventListener("touchstart", this.touchSwipeBind);
      window.removeEventListener("touchmove", this.touchSwipeBind);
      window.removeEventListener("touchend", this.touchSwipeBind);
      delete this.showControlsBind;
      delete this.mouseDownBind;
      delete this.mouseWheelBind;
      delete this.resetMouseScrollStateBind;
      delete this.contextMenuBind;
      delete this.touchSwipeBind;
    }
  
    _fullscreenChange() {
      if (this.isFullscreen) {
        this._enter();
      } else {
        this._exit();
      }
    }
  
    _addFullscreenChangeListeners() {
      this.fullscreenChangeBind = this._fullscreenChange.bind(this);
      window.addEventListener("fullscreenchange", this.fullscreenChangeBind);
      window.addEventListener("mozfullscreenchange", this.fullscreenChangeBind);
      window.addEventListener("webkitfullscreenchange", this.fullscreenChangeBind);
      window.addEventListener("MSFullscreenChange", this.fullscreenChangeBind);
    }
  
    _removeFullscreenChangeListeners() {
      window.removeEventListener("fullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("mozfullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("webkitfullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("MSFullscreenChange", this.fullscreenChangeBind);
      delete this.fullscreenChangeBind;
    }
  
  }
  
  exports.PDFPresentationMode = PDFPresentationMode;
  
  /***/ }),
  /* 21 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFSidebarResizer = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  const SIDEBAR_WIDTH_VAR = "--sidebar-width";
  const SIDEBAR_MIN_WIDTH = 200;
  const SIDEBAR_RESIZING_CLASS = "sidebarResizing";
  
  class PDFSidebarResizer {
    constructor(options, eventBus, l10n = _ui_utils.NullL10n) {
      this.enabled = false;
      this.isRTL = false;
      this.sidebarOpen = false;
      this.doc = document.documentElement;
      this._width = null;
      this._outerContainerWidth = null;
      this._boundEvents = Object.create(null);
      this.outerContainer = options.outerContainer;
      this.resizer = options.resizer;
      this.eventBus = eventBus;
      this.l10n = l10n;
  
      if (typeof CSS === "undefined" || typeof CSS.supports !== "function" || !CSS.supports(SIDEBAR_WIDTH_VAR, `calc(-1 * ${SIDEBAR_MIN_WIDTH}px)`)) {
        console.warn("PDFSidebarResizer: " + "The browser does not support resizing of the sidebar.");
        return;
      }
  
      this.enabled = true;
      this.resizer.classList.remove("hidden");
      this.l10n.getDirection().then(dir => {
        this.isRTL = dir === "rtl";
      });
  
      this._addEventListeners();
    }
  
    get outerContainerWidth() {
      if (!this._outerContainerWidth) {
        this._outerContainerWidth = this.outerContainer.clientWidth;
      }
  
      return this._outerContainerWidth;
    }
  
    _updateWidth(width = 0) {
      if (!this.enabled) {
        return false;
      }
  
      const newWidth = (0, _ui_utils.clamp)(width, SIDEBAR_MIN_WIDTH, Math.floor(this.outerContainerWidth / 2));
  
      if (newWidth === this._width) {
        return false;
      }
  
      this._width = newWidth;
      this.doc.style.setProperty(SIDEBAR_WIDTH_VAR, `${newWidth}px`);
      return true;
    }
  
    _mouseMove(evt) {
      let width = evt.clientX;
  
      if (this.isRTL) {
        width = this.outerContainerWidth - width;
      }
  
      this._updateWidth(width);
    }
  
    _mouseUp(evt) {
      this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
      this.eventBus.dispatch("resize", {
        source: this
      });
      const _boundEvents = this._boundEvents;
      window.removeEventListener("mousemove", _boundEvents.mouseMove);
      window.removeEventListener("mouseup", _boundEvents.mouseUp);
    }
  
    _addEventListeners() {
      if (!this.enabled) {
        return;
      }
  
      const _boundEvents = this._boundEvents;
      _boundEvents.mouseMove = this._mouseMove.bind(this);
      _boundEvents.mouseUp = this._mouseUp.bind(this);
      this.resizer.addEventListener("mousedown", evt => {
        if (evt.button !== 0) {
          return;
        }
  
        this.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);
        window.addEventListener("mousemove", _boundEvents.mouseMove);
        window.addEventListener("mouseup", _boundEvents.mouseUp);
      });
  
      this.eventBus._on("sidebarviewchanged", evt => {
        this.sidebarOpen = !!(evt && evt.view);
      });
  
      this.eventBus._on("resize", evt => {
        if (!evt || evt.source !== window) {
          return;
        }
  
        this._outerContainerWidth = null;
  
        if (!this._width) {
          return;
        }
  
        if (!this.sidebarOpen) {
          this._updateWidth(this._width);
  
          return;
        }
  
        this.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);
  
        const updated = this._updateWidth(this._width);
  
        Promise.resolve().then(() => {
          this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
  
          if (updated) {
            this.eventBus.dispatch("resize", {
              source: this
            });
          }
        });
      });
    }
  
  }
  
  exports.PDFSidebarResizer = PDFSidebarResizer;
  
  /***/ }),
  /* 22 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFThumbnailViewer = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_thumbnail_view = __webpack_require__(23);
  
  const THUMBNAIL_SCROLL_MARGIN = -19;
  const THUMBNAIL_SELECTED_CLASS = "selected";
  
  class PDFThumbnailViewer {
    constructor({
      container,
      linkService,
      renderingQueue,
      l10n = _ui_utils.NullL10n
    }) {
      this.container = container;
      this.linkService = linkService;
      this.renderingQueue = renderingQueue;
      this.l10n = l10n;
      this.scroll = (0, _ui_utils.watchScroll)(this.container, this._scrollUpdated.bind(this));
  
      this._resetView();
    }
  
    _scrollUpdated() {
      this.renderingQueue.renderHighestPriority();
    }
  
    getThumbnail(index) {
      return this._thumbnails[index];
    }
  
    _getVisibleThumbs() {
      return (0, _ui_utils.getVisibleElements)(this.container, this._thumbnails);
    }
  
    scrollThumbnailIntoView(pageNumber) {
      if (!this.pdfDocument) {
        return;
      }
  
      const thumbnailView = this._thumbnails[pageNumber - 1];
  
      if (!thumbnailView) {
        console.error('scrollThumbnailIntoView: Invalid "pageNumber" parameter.');
        return;
      }
  
      if (pageNumber !== this._currentPageNumber) {
        const prevThumbnailView = this._thumbnails[this._currentPageNumber - 1];
        prevThumbnailView.div.classList.remove(THUMBNAIL_SELECTED_CLASS);
        thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS);
      }
  
      const visibleThumbs = this._getVisibleThumbs();
  
      const numVisibleThumbs = visibleThumbs.views.length;
  
      if (numVisibleThumbs > 0) {
        const first = visibleThumbs.first.id;
        const last = numVisibleThumbs > 1 ? visibleThumbs.last.id : first;
        let shouldScroll = false;
  
        if (pageNumber <= first || pageNumber >= last) {
          shouldScroll = true;
        } else {
          visibleThumbs.views.some(function (view) {
            if (view.id !== pageNumber) {
              return false;
            }
  
            shouldScroll = view.percent < 100;
            return true;
          });
        }
  
        if (shouldScroll) {
          (0, _ui_utils.scrollIntoView)(thumbnailView.div, {
            top: THUMBNAIL_SCROLL_MARGIN
          });
        }
      }
  
      this._currentPageNumber = pageNumber;
    }
  
    get pagesRotation() {
      return this._pagesRotation;
    }
  
    set pagesRotation(rotation) {
      if (!(0, _ui_utils.isValidRotation)(rotation)) {
        throw new Error("Invalid thumbnails rotation angle.");
      }
  
      if (!this.pdfDocument) {
        return;
      }
  
      if (this._pagesRotation === rotation) {
        return;
      }
  
      this._pagesRotation = rotation;
  
      for (let i = 0, ii = this._thumbnails.length; i < ii; i++) {
        this._thumbnails[i].update(rotation);
      }
    }
  
    cleanup() {
      _pdf_thumbnail_view.PDFThumbnailView.cleanup();
    }
  
    _resetView() {
      this._thumbnails = [];
      this._currentPageNumber = 1;
      this._pageLabels = null;
      this._pagesRotation = 0;
      this._pagesRequests = new WeakMap();
      this.container.textContent = "";
    }
  
    setDocument(pdfDocument) {
      if (this.pdfDocument) {
        this._cancelRendering();
  
        this._resetView();
      }
  
      this.pdfDocument = pdfDocument;
  
      if (!pdfDocument) {
        return;
      }
  
      pdfDocument.getPage(1).then(firstPdfPage => {
        const pagesCount = pdfDocument.numPages;
        const viewport = firstPdfPage.getViewport({
          scale: 1
        });
  
        for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) {
          const thumbnail = new _pdf_thumbnail_view.PDFThumbnailView({
            container: this.container,
            id: pageNum,
            defaultViewport: viewport.clone(),
            linkService: this.linkService,
            renderingQueue: this.renderingQueue,
            disableCanvasToImageConversion: false,
            l10n: this.l10n
          });
  
          this._thumbnails.push(thumbnail);
        }
  
        const firstThumbnailView = this._thumbnails[0];
  
        if (firstThumbnailView) {
          firstThumbnailView.setPdfPage(firstPdfPage);
        }
  
        const thumbnailView = this._thumbnails[this._currentPageNumber - 1];
        thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS);
      }).catch(reason => {
        console.error("Unable to initialize thumbnail viewer", reason);
      });
    }
  
    _cancelRendering() {
      for (let i = 0, ii = this._thumbnails.length; i < ii; i++) {
        if (this._thumbnails[i]) {
          this._thumbnails[i].cancelRendering();
        }
      }
    }
  
    setPageLabels(labels) {
      if (!this.pdfDocument) {
        return;
      }
  
      if (!labels) {
        this._pageLabels = null;
      } else if (!(Array.isArray(labels) && this.pdfDocument.numPages === labels.length)) {
        this._pageLabels = null;
        console.error("PDFThumbnailViewer_setPageLabels: Invalid page labels.");
      } else {
        this._pageLabels = labels;
      }
  
      for (let i = 0, ii = this._thumbnails.length; i < ii; i++) {
        const label = this._pageLabels && this._pageLabels[i];
  
        this._thumbnails[i].setPageLabel(label);
      }
    }
  
    _ensurePdfPageLoaded(thumbView) {
      if (thumbView.pdfPage) {
        return Promise.resolve(thumbView.pdfPage);
      }
  
      if (this._pagesRequests.has(thumbView)) {
        return this._pagesRequests.get(thumbView);
      }
  
      const promise = this.pdfDocument.getPage(thumbView.id).then(pdfPage => {
        if (!thumbView.pdfPage) {
          thumbView.setPdfPage(pdfPage);
        }
  
        this._pagesRequests.delete(thumbView);
  
        return pdfPage;
      }).catch(reason => {
        console.error("Unable to get page for thumb view", reason);
  
        this._pagesRequests.delete(thumbView);
      });
  
      this._pagesRequests.set(thumbView, promise);
  
      return promise;
    }
  
    forceRendering() {
      const visibleThumbs = this._getVisibleThumbs();
  
      const thumbView = this.renderingQueue.getHighestPriority(visibleThumbs, this._thumbnails, this.scroll.down);
  
      if (thumbView) {
        this._ensurePdfPageLoaded(thumbView).then(() => {
          this.renderingQueue.renderView(thumbView);
        });
  
        return true;
      }
  
      return false;
    }
  
  }
  
  exports.PDFThumbnailViewer = PDFThumbnailViewer;
  
  /***/ }),
  /* 23 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFThumbnailView = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_rendering_queue = __webpack_require__(8);
  
  const MAX_NUM_SCALING_STEPS = 3;
  const THUMBNAIL_CANVAS_BORDER_WIDTH = 1;
  const THUMBNAIL_WIDTH = 98;
  
  const TempImageFactory = function TempImageFactoryClosure() {
    let tempCanvasCache = null;
    return {
      getCanvas(width, height) {
        let tempCanvas = tempCanvasCache;
  
        if (!tempCanvas) {
          tempCanvas = document.createElement("canvas");
          tempCanvasCache = tempCanvas;
        }
  
        tempCanvas.width = width;
        tempCanvas.height = height;
        tempCanvas.mozOpaque = true;
        const ctx = tempCanvas.getContext("2d", {
          alpha: false
        });
        ctx.save();
        ctx.fillStyle = "rgb(255, 255, 255)";
        ctx.fillRect(0, 0, width, height);
        ctx.restore();
        return tempCanvas;
      },
  
      destroyCanvas() {
        const tempCanvas = tempCanvasCache;
  
        if (tempCanvas) {
          tempCanvas.width = 0;
          tempCanvas.height = 0;
        }
  
        tempCanvasCache = null;
      }
  
    };
  }();
  
  class PDFThumbnailView {
    constructor({
      container,
      id,
      defaultViewport,
      linkService,
      renderingQueue,
      disableCanvasToImageConversion = false,
      l10n = _ui_utils.NullL10n
    }) {
      this.id = id;
      this.renderingId = "thumbnail" + id;
      this.pageLabel = null;
      this.pdfPage = null;
      this.rotation = 0;
      this.viewport = defaultViewport;
      this.pdfPageRotate = defaultViewport.rotation;
      this.linkService = linkService;
      this.renderingQueue = renderingQueue;
      this.renderTask = null;
      this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
      this.resume = null;
      this.disableCanvasToImageConversion = disableCanvasToImageConversion;
      this.pageWidth = this.viewport.width;
      this.pageHeight = this.viewport.height;
      this.pageRatio = this.pageWidth / this.pageHeight;
      this.canvasWidth = THUMBNAIL_WIDTH;
      this.canvasHeight = this.canvasWidth / this.pageRatio | 0;
      this.scale = this.canvasWidth / this.pageWidth;
      this.l10n = l10n;
      const anchor = document.createElement("a");
      anchor.href = linkService.getAnchorUrl("#page=" + id);
  
      this._thumbPageTitle.then(msg => {
        anchor.title = msg;
      });
  
      anchor.onclick = function () {
        linkService.page = id;
        return false;
      };
  
      this.anchor = anchor;
      const div = document.createElement("div");
      div.className = "thumbnail";
      div.setAttribute("data-page-number", this.id);
      this.div = div;
      const ring = document.createElement("div");
      ring.className = "thumbnailSelectionRing";
      const borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
      ring.style.width = this.canvasWidth + borderAdjustment + "px";
      ring.style.height = this.canvasHeight + borderAdjustment + "px";
      this.ring = ring;
      div.appendChild(ring);
      anchor.appendChild(div);
      container.appendChild(anchor);
    }
  
    setPdfPage(pdfPage) {
      this.pdfPage = pdfPage;
      this.pdfPageRotate = pdfPage.rotate;
      const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = pdfPage.getViewport({
        scale: 1,
        rotation: totalRotation
      });
      this.reset();
    }
  
    reset() {
      this.cancelRendering();
      this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
      this.pageWidth = this.viewport.width;
      this.pageHeight = this.viewport.height;
      this.pageRatio = this.pageWidth / this.pageHeight;
      this.canvasHeight = this.canvasWidth / this.pageRatio | 0;
      this.scale = this.canvasWidth / this.pageWidth;
      this.div.removeAttribute("data-loaded");
      const ring = this.ring;
      const childNodes = ring.childNodes;
  
      for (let i = childNodes.length - 1; i >= 0; i--) {
        ring.removeChild(childNodes[i]);
      }
  
      const borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
      ring.style.width = this.canvasWidth + borderAdjustment + "px";
      ring.style.height = this.canvasHeight + borderAdjustment + "px";
  
      if (this.canvas) {
        this.canvas.width = 0;
        this.canvas.height = 0;
        delete this.canvas;
      }
  
      if (this.image) {
        this.image.removeAttribute("src");
        delete this.image;
      }
    }
  
    update(rotation) {
      if (typeof rotation !== "undefined") {
        this.rotation = rotation;
      }
  
      const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = this.viewport.clone({
        scale: 1,
        rotation: totalRotation
      });
      this.reset();
    }
  
    cancelRendering() {
      if (this.renderTask) {
        this.renderTask.cancel();
        this.renderTask = null;
      }
  
      this.resume = null;
    }
  
    _getPageDrawContext(noCtxScale = false) {
      const canvas = document.createElement("canvas");
      this.canvas = canvas;
      canvas.mozOpaque = true;
      const ctx = canvas.getContext("2d", {
        alpha: false
      });
      const outputScale = (0, _ui_utils.getOutputScale)(ctx);
      canvas.width = this.canvasWidth * outputScale.sx | 0;
      canvas.height = this.canvasHeight * outputScale.sy | 0;
      canvas.style.width = this.canvasWidth + "px";
      canvas.style.height = this.canvasHeight + "px";
  
      if (!noCtxScale && outputScale.scaled) {
        ctx.scale(outputScale.sx, outputScale.sy);
      }
  
      return ctx;
    }
  
    _convertCanvasToImage() {
      if (!this.canvas) {
        return;
      }
  
      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
        return;
      }
  
      const className = "thumbnailImage";
  
      if (this.disableCanvasToImageConversion) {
        this.canvas.className = className;
  
        this._thumbPageCanvas.then(msg => {
          this.canvas.setAttribute("aria-label", msg);
        });
  
        this.div.setAttribute("data-loaded", true);
        this.ring.appendChild(this.canvas);
        return;
      }
  
      const image = document.createElement("img");
      image.className = className;
  
      this._thumbPageCanvas.then(msg => {
        image.setAttribute("aria-label", msg);
      });
  
      image.style.width = this.canvasWidth + "px";
      image.style.height = this.canvasHeight + "px";
      image.src = this.canvas.toDataURL();
      this.image = image;
      this.div.setAttribute("data-loaded", true);
      this.ring.appendChild(image);
      this.canvas.width = 0;
      this.canvas.height = 0;
      delete this.canvas;
    }
  
    draw() {
      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        console.error("Must be in new state before drawing");
        return Promise.resolve(undefined);
      }
  
      const {
        pdfPage
      } = this;
  
      if (!pdfPage) {
        this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
        return Promise.reject(new Error("pdfPage is not loaded"));
      }
  
      this.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
      const renderCapability = (0, _pdfjsLib.createPromiseCapability)();
  
      const finishRenderTask = error => {
        if (renderTask === this.renderTask) {
          this.renderTask = null;
        }
  
        if (error instanceof _pdfjsLib.RenderingCancelledException) {
          renderCapability.resolve(undefined);
          return;
        }
  
        this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
  
        this._convertCanvasToImage();
  
        if (!error) {
          renderCapability.resolve(undefined);
        } else {
          renderCapability.reject(error);
        }
      };
  
      const ctx = this._getPageDrawContext();
  
      const drawViewport = this.viewport.clone({
        scale: this.scale
      });
  
      const renderContinueCallback = cont => {
        if (!this.renderingQueue.isHighestPriority(this)) {
          this.renderingState = _pdf_rendering_queue.RenderingStates.PAUSED;
  
          this.resume = () => {
            this.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
            cont();
          };
  
          return;
        }
  
        cont();
      };
  
      const renderContext = {
        canvasContext: ctx,
        viewport: drawViewport
      };
      const renderTask = this.renderTask = pdfPage.render(renderContext);
      renderTask.onContinue = renderContinueCallback;
      renderTask.promise.then(function () {
        finishRenderTask(null);
      }, function (error) {
        finishRenderTask(error);
      });
      return renderCapability.promise;
    }
  
    setImage(pageView) {
      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        return;
      }
  
      const img = pageView.canvas;
  
      if (!img) {
        return;
      }
  
      if (!this.pdfPage) {
        this.setPdfPage(pageView.pdfPage);
      }
  
      this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
  
      const ctx = this._getPageDrawContext(true);
  
      const canvas = ctx.canvas;
  
      if (img.width <= 2 * canvas.width) {
        ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0, canvas.width, canvas.height);
  
        this._convertCanvasToImage();
  
        return;
      }
  
      let reducedWidth = canvas.width << MAX_NUM_SCALING_STEPS;
      let reducedHeight = canvas.height << MAX_NUM_SCALING_STEPS;
      const reducedImage = TempImageFactory.getCanvas(reducedWidth, reducedHeight);
      const reducedImageCtx = reducedImage.getContext("2d");
  
      while (reducedWidth > img.width || reducedHeight > img.height) {
        reducedWidth >>= 1;
        reducedHeight >>= 1;
      }
  
      reducedImageCtx.drawImage(img, 0, 0, img.width, img.height, 0, 0, reducedWidth, reducedHeight);
  
      while (reducedWidth > 2 * canvas.width) {
        reducedImageCtx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, reducedWidth >> 1, reducedHeight >> 1);
        reducedWidth >>= 1;
        reducedHeight >>= 1;
      }
  
      ctx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, canvas.width, canvas.height);
  
      this._convertCanvasToImage();
    }
  
    get _thumbPageTitle() {
      return this.l10n.get("thumb_page_title", {
        page: this.pageLabel !== null ? this.pageLabel : this.id
      }, "Page {{page}}");
    }
  
    get _thumbPageCanvas() {
      return this.l10n.get("thumb_page_canvas", {
        page: this.pageLabel !== null ? this.pageLabel : this.id
      }, "Thumbnail of Page {{page}}");
    }
  
    setPageLabel(label) {
      this.pageLabel = typeof label === "string" ? label : null;
  
      this._thumbPageTitle.then(msg => {
        this.anchor.title = msg;
      });
  
      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
        return;
      }
  
      this._thumbPageCanvas.then(msg => {
        if (this.image) {
          this.image.setAttribute("aria-label", msg);
        } else if (this.disableCanvasToImageConversion && this.canvas) {
          this.canvas.setAttribute("aria-label", msg);
        }
      });
    }
  
    static cleanup() {
      TempImageFactory.destroyCanvas();
    }
  
  }
  
  exports.PDFThumbnailView = PDFThumbnailView;
  
  /***/ }),
  /* 24 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFViewer = void 0;
  
  var _base_viewer = __webpack_require__(25);
  
  var _pdfjsLib = __webpack_require__(5);
  
  class PDFViewer extends _base_viewer.BaseViewer {
    get _viewerElement() {
      return (0, _pdfjsLib.shadow)(this, "_viewerElement", this.viewer);
    }
  
    _scrollIntoView({
      pageDiv,
      pageSpot = null,
      pageNumber = null
    }) {
      if (!pageSpot && !this.isInPresentationMode) {
        const left = pageDiv.offsetLeft + pageDiv.clientLeft;
        const right = left + pageDiv.clientWidth;
        const {
          scrollLeft,
          clientWidth
        } = this.container;
  
        if (this._isScrollModeHorizontal || left < scrollLeft || right > scrollLeft + clientWidth) {
          pageSpot = {
            left: 0,
            top: 0
          };
        }
      }
  
      super._scrollIntoView({
        pageDiv,
        pageSpot,
        pageNumber
      });
    }
  
    _getVisiblePages() {
      if (this.isInPresentationMode) {
        return this._getCurrentVisiblePage();
      }
  
      return super._getVisiblePages();
    }
  
    _updateHelper(visiblePages) {
      if (this.isInPresentationMode) {
        return;
      }
  
      let currentId = this._currentPageNumber;
      let stillFullyVisible = false;
  
      for (const page of visiblePages) {
        if (page.percent < 100) {
          break;
        }
  
        if (page.id === currentId) {
          stillFullyVisible = true;
          break;
        }
      }
  
      if (!stillFullyVisible) {
        currentId = visiblePages[0].id;
      }
  
      this._setCurrentPageNumber(currentId);
    }
  
  }
  
  exports.PDFViewer = PDFViewer;
  
  /***/ }),
  /* 25 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.BaseViewer = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_rendering_queue = __webpack_require__(8);
  
  var _annotation_layer_builder = __webpack_require__(26);
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _pdf_page_view = __webpack_require__(27);
  
  var _pdf_link_service = __webpack_require__(18);
  
  var _text_layer_builder = __webpack_require__(28);
  
  const DEFAULT_CACHE_SIZE = 10;
  
  function PDFPageViewBuffer(size) {
    const data = [];
  
    this.push = function (view) {
      const i = data.indexOf(view);
  
      if (i >= 0) {
        data.splice(i, 1);
      }
  
      data.push(view);
  
      if (data.length > size) {
        data.shift().destroy();
      }
    };
  
    this.resize = function (newSize, pagesToKeep) {
      size = newSize;
  
      if (pagesToKeep) {
        const pageIdsToKeep = new Set();
  
        for (let i = 0, iMax = pagesToKeep.length; i < iMax; ++i) {
          pageIdsToKeep.add(pagesToKeep[i].id);
        }
  
        (0, _ui_utils.moveToEndOfArray)(data, function (page) {
          return pageIdsToKeep.has(page.id);
        });
      }
  
      while (data.length > size) {
        data.shift().destroy();
      }
    };
  }
  
  function isSameScale(oldScale, newScale) {
    if (newScale === oldScale) {
      return true;
    }
  
    if (Math.abs(newScale - oldScale) < 1e-15) {
      return true;
    }
  
    return false;
  }
  
  class BaseViewer {
    constructor(options) {
      if (this.constructor === BaseViewer) {
        throw new Error("Cannot initialize BaseViewer.");
      }
  
      this._name = this.constructor.name;
      this.container = options.container;
      this.viewer = options.viewer || options.container.firstElementChild;
      this.eventBus = options.eventBus;
      this.linkService = options.linkService || new _pdf_link_service.SimpleLinkService();
      this.downloadManager = options.downloadManager || null;
      this.findController = options.findController || null;
      this.removePageBorders = options.removePageBorders || false;
      this.textLayerMode = Number.isInteger(options.textLayerMode) ? options.textLayerMode : _ui_utils.TextLayerMode.ENABLE;
      this.imageResourcesPath = options.imageResourcesPath || "";
      this.renderInteractiveForms = options.renderInteractiveForms || false;
      this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
      this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
      this.enableWebGL = options.enableWebGL || false;
      this.useOnlyCssZoom = options.useOnlyCssZoom || false;
      this.maxCanvasPixels = options.maxCanvasPixels;
      this.l10n = options.l10n || _ui_utils.NullL10n;
      this.defaultRenderingQueue = !options.renderingQueue;
  
      if (this.defaultRenderingQueue) {
        this.renderingQueue = new _pdf_rendering_queue.PDFRenderingQueue();
        this.renderingQueue.setViewer(this);
      } else {
        this.renderingQueue = options.renderingQueue;
      }
  
      this.scroll = (0, _ui_utils.watchScroll)(this.container, this._scrollUpdate.bind(this));
      this.presentationModeState = _ui_utils.PresentationModeState.UNKNOWN;
      this._onBeforeDraw = this._onAfterDraw = null;
  
      this._resetView();
  
      if (this.removePageBorders) {
        this.viewer.classList.add("removePageBorders");
      }
  
      Promise.resolve().then(() => {
        this.eventBus.dispatch("baseviewerinit", {
          source: this
        });
      });
    }
  
    get pagesCount() {
      return this._pages.length;
    }
  
    getPageView(index) {
      return this._pages[index];
    }
  
    get pageViewsReady() {
      if (!this._pagesCapability.settled) {
        return false;
      }
  
      return this._pages.every(function (pageView) {
        return pageView && pageView.pdfPage;
      });
    }
  
    get currentPageNumber() {
      return this._currentPageNumber;
    }
  
    set currentPageNumber(val) {
      if (!Number.isInteger(val)) {
        throw new Error("Invalid page number.");
      }
  
      if (!this.pdfDocument) {
        return;
      }
  
      if (!this._setCurrentPageNumber(val, true)) {
        console.error(`${this._name}.currentPageNumber: "${val}" is not a valid page.`);
      }
    }
  
    _setCurrentPageNumber(val, resetCurrentPageView = false) {
      if (this._currentPageNumber === val) {
        if (resetCurrentPageView) {
          this._resetCurrentPageView();
        }
  
        return true;
      }
  
      if (!(0 < val && val <= this.pagesCount)) {
        return false;
      }
  
      this._currentPageNumber = val;
      this.eventBus.dispatch("pagechanging", {
        source: this,
        pageNumber: val,
        pageLabel: this._pageLabels && this._pageLabels[val - 1]
      });
  
      if (resetCurrentPageView) {
        this._resetCurrentPageView();
      }
  
      return true;
    }
  
    get currentPageLabel() {
      return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
    }
  
    set currentPageLabel(val) {
      if (!this.pdfDocument) {
        return;
      }
  
      let page = val | 0;
  
      if (this._pageLabels) {
        const i = this._pageLabels.indexOf(val);
  
        if (i >= 0) {
          page = i + 1;
        }
      }
  
      if (!this._setCurrentPageNumber(page, true)) {
        console.error(`${this._name}.currentPageLabel: "${val}" is not a valid page.`);
      }
    }
  
    get currentScale() {
      return this._currentScale !== _ui_utils.UNKNOWN_SCALE ? this._currentScale : _ui_utils.DEFAULT_SCALE;
    }
  
    set currentScale(val) {
      if (isNaN(val)) {
        throw new Error("Invalid numeric scale.");
      }
  
      if (!this.pdfDocument) {
        return;
      }
  
      this._setScale(val, false);
    }
  
    get currentScaleValue() {
      return this._currentScaleValue;
    }
  
    set currentScaleValue(val) {
      if (!this.pdfDocument) {
        return;
      }
  
      this._setScale(val, false);
    }
  
    get pagesRotation() {
      return this._pagesRotation;
    }
  
    set pagesRotation(rotation) {
      if (!(0, _ui_utils.isValidRotation)(rotation)) {
        throw new Error("Invalid pages rotation angle.");
      }
  
      if (!this.pdfDocument) {
        return;
      }
  
      if (this._pagesRotation === rotation) {
        return;
      }
  
      this._pagesRotation = rotation;
      const pageNumber = this._currentPageNumber;
  
      for (let i = 0, ii = this._pages.length; i < ii; i++) {
        const pageView = this._pages[i];
        pageView.update(pageView.scale, rotation);
      }
  
      if (this._currentScaleValue) {
        this._setScale(this._currentScaleValue, true);
      }
  
      this.eventBus.dispatch("rotationchanging", {
        source: this,
        pagesRotation: rotation,
        pageNumber
      });
  
      if (this.defaultRenderingQueue) {
        this.update();
      }
    }
  
    get firstPagePromise() {
      return this.pdfDocument ? this._firstPageCapability.promise : null;
    }
  
    get onePageRendered() {
      return this.pdfDocument ? this._onePageRenderedCapability.promise : null;
    }
  
    get pagesPromise() {
      return this.pdfDocument ? this._pagesCapability.promise : null;
    }
  
    get _viewerElement() {
      throw new Error("Not implemented: _viewerElement");
    }
  
    _onePageRenderedOrForceFetch() {
      if (!this.container.offsetParent || this._getVisiblePages().views.length === 0) {
        return Promise.resolve();
      }
  
      return this._onePageRenderedCapability.promise;
    }
  
    setDocument(pdfDocument) {
      if (this.pdfDocument) {
        this._cancelRendering();
  
        this._resetView();
  
        if (this.findController) {
          this.findController.setDocument(null);
        }
      }
  
      this.pdfDocument = pdfDocument;
  
      if (!pdfDocument) {
        return;
      }
  
      const pagesCount = pdfDocument.numPages;
      const firstPagePromise = pdfDocument.getPage(1);
  
      this._pagesCapability.promise.then(() => {
        this.eventBus.dispatch("pagesloaded", {
          source: this,
          pagesCount
        });
      });
  
      this._onBeforeDraw = evt => {
        const pageView = this._pages[evt.pageNumber - 1];
  
        if (!pageView) {
          return;
        }
  
        this._buffer.push(pageView);
      };
  
      this.eventBus._on("pagerender", this._onBeforeDraw);
  
      this._onAfterDraw = evt => {
        if (evt.cssTransform || this._onePageRenderedCapability.settled) {
          return;
        }
  
        this._onePageRenderedCapability.resolve();
  
        this.eventBus._off("pagerendered", this._onAfterDraw);
  
        this._onAfterDraw = null;
      };
  
      this.eventBus._on("pagerendered", this._onAfterDraw);
  
      firstPagePromise.then(firstPdfPage => {
        this._firstPageCapability.resolve(firstPdfPage);
  
        const scale = this.currentScale;
        const viewport = firstPdfPage.getViewport({
          scale: scale * _ui_utils.CSS_UNITS
        });
        const textLayerFactory = this.textLayerMode !== _ui_utils.TextLayerMode.DISABLE ? this : null;
  
        for (let pageNum = 1; pageNum <= pagesCount; ++pageNum) {
          const pageView = new _pdf_page_view.PDFPageView({
            container: this._viewerElement,
            eventBus: this.eventBus,
            id: pageNum,
            scale,
            defaultViewport: viewport.clone(),
            renderingQueue: this.renderingQueue,
            textLayerFactory,
            textLayerMode: this.textLayerMode,
            annotationLayerFactory: this,
            imageResourcesPath: this.imageResourcesPath,
            renderInteractiveForms: this.renderInteractiveForms,
            renderer: this.renderer,
            enableWebGL: this.enableWebGL,
            useOnlyCssZoom: this.useOnlyCssZoom,
            maxCanvasPixels: this.maxCanvasPixels,
            l10n: this.l10n
          });
  
          this._pages.push(pageView);
        }
  
        const firstPageView = this._pages[0];
  
        if (firstPageView) {
          firstPageView.setPdfPage(firstPdfPage);
          this.linkService.cachePageRef(1, firstPdfPage.ref);
        }
  
        if (this._spreadMode !== _ui_utils.SpreadMode.NONE) {
          this._updateSpreadMode();
        }
  
        this._onePageRenderedOrForceFetch().then(() => {
          if (this.findController) {
            this.findController.setDocument(pdfDocument);
          }
  
          if (pdfDocument.loadingParams.disableAutoFetch || pagesCount > 7500) {
            this._pagesCapability.resolve();
  
            return;
          }
  
          let getPagesLeft = pagesCount - 1;
  
          if (getPagesLeft <= 0) {
            this._pagesCapability.resolve();
  
            return;
          }
  
          for (let pageNum = 2; pageNum <= pagesCount; ++pageNum) {
            pdfDocument.getPage(pageNum).then(pdfPage => {
              const pageView = this._pages[pageNum - 1];
  
              if (!pageView.pdfPage) {
                pageView.setPdfPage(pdfPage);
              }
  
              this.linkService.cachePageRef(pageNum, pdfPage.ref);
  
              if (--getPagesLeft === 0) {
                this._pagesCapability.resolve();
              }
            }, reason => {
              console.error(`Unable to get page ${pageNum} to initialize viewer`, reason);
  
              if (--getPagesLeft === 0) {
                this._pagesCapability.resolve();
              }
            });
          }
        });
  
        this.eventBus.dispatch("pagesinit", {
          source: this
        });
  
        if (this.defaultRenderingQueue) {
          this.update();
        }
      }).catch(reason => {
        console.error("Unable to initialize viewer", reason);
      });
    }
  
    setPageLabels(labels) {
      if (!this.pdfDocument) {
        return;
      }
  
      if (!labels) {
        this._pageLabels = null;
      } else if (!(Array.isArray(labels) && this.pdfDocument.numPages === labels.length)) {
        this._pageLabels = null;
        console.error(`${this._name}.setPageLabels: Invalid page labels.`);
      } else {
        this._pageLabels = labels;
      }
  
      for (let i = 0, ii = this._pages.length; i < ii; i++) {
        const pageView = this._pages[i];
        const label = this._pageLabels && this._pageLabels[i];
        pageView.setPageLabel(label);
      }
    }
  
    _resetView() {
      this._pages = [];
      this._currentPageNumber = 1;
      this._currentScale = _ui_utils.UNKNOWN_SCALE;
      this._currentScaleValue = null;
      this._pageLabels = null;
      this._buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE);
      this._location = null;
      this._pagesRotation = 0;
      this._pagesRequests = new WeakMap();
      this._firstPageCapability = (0, _pdfjsLib.createPromiseCapability)();
      this._onePageRenderedCapability = (0, _pdfjsLib.createPromiseCapability)();
      this._pagesCapability = (0, _pdfjsLib.createPromiseCapability)();
      this._scrollMode = _ui_utils.ScrollMode.VERTICAL;
      this._spreadMode = _ui_utils.SpreadMode.NONE;
  
      if (this._onBeforeDraw) {
        this.eventBus._off("pagerender", this._onBeforeDraw);
  
        this._onBeforeDraw = null;
      }
  
      if (this._onAfterDraw) {
        this.eventBus._off("pagerendered", this._onAfterDraw);
  
        this._onAfterDraw = null;
      }
  
      this.viewer.textContent = "";
  
      this._updateScrollMode();
    }
  
    _scrollUpdate() {
      if (this.pagesCount === 0) {
        return;
      }
  
      this.update();
    }
  
    _scrollIntoView({
      pageDiv,
      pageSpot = null,
      pageNumber = null
    }) {
      (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
    }
  
    _setScaleUpdatePages(newScale, newValue, noScroll = false, preset = false) {
      this._currentScaleValue = newValue.toString();
  
      if (isSameScale(this._currentScale, newScale)) {
        if (preset) {
          this.eventBus.dispatch("scalechanging", {
            source: this,
            scale: newScale,
            presetValue: newValue
          });
        }
  
        return;
      }
  
      for (let i = 0, ii = this._pages.length; i < ii; i++) {
        this._pages[i].update(newScale);
      }
  
      this._currentScale = newScale;
  
      if (!noScroll) {
        let page = this._currentPageNumber,
            dest;
  
        if (this._location && !(this.isInPresentationMode || this.isChangingPresentationMode)) {
          page = this._location.pageNumber;
          dest = [null, {
            name: "XYZ"
          }, this._location.left, this._location.top, null];
        }
  
        this.scrollPageIntoView({
          pageNumber: page,
          destArray: dest,
          allowNegativeOffset: true
        });
      }
  
      this.eventBus.dispatch("scalechanging", {
        source: this,
        scale: newScale,
        presetValue: preset ? newValue : undefined
      });
  
      if (this.defaultRenderingQueue) {
        this.update();
      }
    }
  
    _setScale(value, noScroll = false) {
      let scale = parseFloat(value);
  
      if (scale > 0) {
        this._setScaleUpdatePages(scale, value, noScroll, false);
      } else {
        const currentPage = this._pages[this._currentPageNumber - 1];
  
        if (!currentPage) {
          return;
        }
  
        const noPadding = this.isInPresentationMode || this.removePageBorders;
        let hPadding = noPadding ? 0 : _ui_utils.SCROLLBAR_PADDING;
        let vPadding = noPadding ? 0 : _ui_utils.VERTICAL_PADDING;
  
        if (!noPadding && this._isScrollModeHorizontal) {
          [hPadding, vPadding] = [vPadding, hPadding];
        }
  
        const pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale;
        const pageHeightScale = (this.container.clientHeight - vPadding) / currentPage.height * currentPage.scale;
  
        switch (value) {
          case "page-actual":
            scale = 1;
            break;
  
          case "page-width":
            scale = pageWidthScale;
            break;
  
          case "page-height":
            scale = pageHeightScale;
            break;
  
          case "page-fit":
            scale = Math.min(pageWidthScale, pageHeightScale);
            break;
  
          case "auto":
            const horizontalScale = (0, _ui_utils.isPortraitOrientation)(currentPage) ? pageWidthScale : Math.min(pageHeightScale, pageWidthScale);
            scale = Math.min(_ui_utils.MAX_AUTO_SCALE, horizontalScale);
            break;
  
          default:
            console.error(`${this._name}._setScale: "${value}" is an unknown zoom value.`);
            return;
        }
  
        this._setScaleUpdatePages(scale, value, noScroll, true);
      }
    }
  
    _resetCurrentPageView() {
      if (this.isInPresentationMode) {
        this._setScale(this._currentScaleValue, true);
      }
  
      const pageView = this._pages[this._currentPageNumber - 1];
  
      this._scrollIntoView({
        pageDiv: pageView.div
      });
    }
  
    scrollPageIntoView({
      pageNumber,
      destArray = null,
      allowNegativeOffset = false,
      ignoreDestinationZoom = false
    }) {
      if (!this.pdfDocument) {
        return;
      }
  
      const pageView = Number.isInteger(pageNumber) && this._pages[pageNumber - 1];
  
      if (!pageView) {
        console.error(`${this._name}.scrollPageIntoView: ` + `"${pageNumber}" is not a valid pageNumber parameter.`);
        return;
      }
  
      if (this.isInPresentationMode || !destArray) {
        this._setCurrentPageNumber(pageNumber, true);
  
        return;
      }
  
      let x = 0,
          y = 0;
      let width = 0,
          height = 0,
          widthScale,
          heightScale;
      const changeOrientation = pageView.rotation % 180 !== 0;
      const pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / _ui_utils.CSS_UNITS;
      const pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / _ui_utils.CSS_UNITS;
      let scale = 0;
  
      switch (destArray[1].name) {
        case "XYZ":
          x = destArray[2];
          y = destArray[3];
          scale = destArray[4];
          x = x !== null ? x : 0;
          y = y !== null ? y : pageHeight;
          break;
  
        case "Fit":
        case "FitB":
          scale = "page-fit";
          break;
  
        case "FitH":
        case "FitBH":
          y = destArray[2];
          scale = "page-width";
  
          if (y === null && this._location) {
            x = this._location.left;
            y = this._location.top;
          }
  
          break;
  
        case "FitV":
        case "FitBV":
          x = destArray[2];
          width = pageWidth;
          height = pageHeight;
          scale = "page-height";
          break;
  
        case "FitR":
          x = destArray[2];
          y = destArray[3];
          width = destArray[4] - x;
          height = destArray[5] - y;
          const hPadding = this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
          const vPadding = this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
          widthScale = (this.container.clientWidth - hPadding) / width / _ui_utils.CSS_UNITS;
          heightScale = (this.container.clientHeight - vPadding) / height / _ui_utils.CSS_UNITS;
          scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
          break;
  
        default:
          console.error(`${this._name}.scrollPageIntoView: ` + `"${destArray[1].name}" is not a valid destination type.`);
          return;
      }
  
      if (!ignoreDestinationZoom) {
        if (scale && scale !== this._currentScale) {
          this.currentScaleValue = scale;
        } else if (this._currentScale === _ui_utils.UNKNOWN_SCALE) {
          this.currentScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
        }
      }
  
      if (scale === "page-fit" && !destArray[4]) {
        this._scrollIntoView({
          pageDiv: pageView.div,
          pageNumber
        });
  
        return;
      }
  
      const boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)];
      let left = Math.min(boundingRect[0][0], boundingRect[1][0]);
      let top = Math.min(boundingRect[0][1], boundingRect[1][1]);
  
      if (!allowNegativeOffset) {
        left = Math.max(left, 0);
        top = Math.max(top, 0);
      }
  
      this._scrollIntoView({
        pageDiv: pageView.div,
        pageSpot: {
          left,
          top
        },
        pageNumber
      });
    }
  
    _updateLocation(firstPage) {
      const currentScale = this._currentScale;
      const currentScaleValue = this._currentScaleValue;
      const normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue;
      const pageNumber = firstPage.id;
      let pdfOpenParams = "#page=" + pageNumber;
      pdfOpenParams += "&zoom=" + normalizedScaleValue;
      const currentPageView = this._pages[pageNumber - 1];
      const container = this.container;
      const topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y);
      const intLeft = Math.round(topLeft[0]);
      const intTop = Math.round(topLeft[1]);
      pdfOpenParams += "," + intLeft + "," + intTop;
      this._location = {
        pageNumber,
        scale: normalizedScaleValue,
        top: intTop,
        left: intLeft,
        rotation: this._pagesRotation,
        pdfOpenParams
      };
    }
  
    _updateHelper(visiblePages) {
      throw new Error("Not implemented: _updateHelper");
    }
  
    update() {
      const visible = this._getVisiblePages();
  
      const visiblePages = visible.views,
            numVisiblePages = visiblePages.length;
  
      if (numVisiblePages === 0) {
        return;
      }
  
      const newCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * numVisiblePages + 1);
  
      this._buffer.resize(newCacheSize, visiblePages);
  
      this.renderingQueue.renderHighestPriority(visible);
  
      this._updateHelper(visiblePages);
  
      this._updateLocation(visible.first);
  
      this.eventBus.dispatch("updateviewarea", {
        source: this,
        location: this._location
      });
    }
  
    containsElement(element) {
      return this.container.contains(element);
    }
  
    focus() {
      this.container.focus();
    }
  
    get _isScrollModeHorizontal() {
      return this.isInPresentationMode ? false : this._scrollMode === _ui_utils.ScrollMode.HORIZONTAL;
    }
  
    get isInPresentationMode() {
      return this.presentationModeState === _ui_utils.PresentationModeState.FULLSCREEN;
    }
  
    get isChangingPresentationMode() {
      return this.presentationModeState === _ui_utils.PresentationModeState.CHANGING;
    }
  
    get isHorizontalScrollbarEnabled() {
      return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth;
    }
  
    get isVerticalScrollbarEnabled() {
      return this.isInPresentationMode ? false : this.container.scrollHeight > this.container.clientHeight;
    }
  
    _getCurrentVisiblePage() {
      if (!this.pagesCount) {
        return {
          views: []
        };
      }
  
      const pageView = this._pages[this._currentPageNumber - 1];
      const element = pageView.div;
      const view = {
        id: pageView.id,
        x: element.offsetLeft + element.clientLeft,
        y: element.offsetTop + element.clientTop,
        view: pageView
      };
      return {
        first: view,
        last: view,
        views: [view]
      };
    }
  
    _getVisiblePages() {
      return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true, this._isScrollModeHorizontal);
    }
  
    isPageVisible(pageNumber) {
      if (!this.pdfDocument) {
        return false;
      }
  
      if (pageNumber < 1 || pageNumber > this.pagesCount) {
        console.error(`${this._name}.isPageVisible: "${pageNumber}" is out of bounds.`);
        return false;
      }
  
      return this._getVisiblePages().views.some(function (view) {
        return view.id === pageNumber;
      });
    }
  
    cleanup() {
      for (let i = 0, ii = this._pages.length; i < ii; i++) {
        if (this._pages[i] && this._pages[i].renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
          this._pages[i].reset();
        }
      }
    }
  
    _cancelRendering() {
      for (let i = 0, ii = this._pages.length; i < ii; i++) {
        if (this._pages[i]) {
          this._pages[i].cancelRendering();
        }
      }
    }
  
    _ensurePdfPageLoaded(pageView) {
      if (pageView.pdfPage) {
        return Promise.resolve(pageView.pdfPage);
      }
  
      if (this._pagesRequests.has(pageView)) {
        return this._pagesRequests.get(pageView);
      }
  
      const promise = this.pdfDocument.getPage(pageView.id).then(pdfPage => {
        if (!pageView.pdfPage) {
          pageView.setPdfPage(pdfPage);
        }
  
        this._pagesRequests.delete(pageView);
  
        return pdfPage;
      }).catch(reason => {
        console.error("Unable to get page for page view", reason);
  
        this._pagesRequests.delete(pageView);
      });
  
      this._pagesRequests.set(pageView, promise);
  
      return promise;
    }
  
    forceRendering(currentlyVisiblePages) {
      const visiblePages = currentlyVisiblePages || this._getVisiblePages();
  
      const scrollAhead = this._isScrollModeHorizontal ? this.scroll.right : this.scroll.down;
      const pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, scrollAhead);
  
      if (pageView) {
        this._ensurePdfPageLoaded(pageView).then(() => {
          this.renderingQueue.renderView(pageView);
        });
  
        return true;
      }
  
      return false;
    }
  
    createTextLayerBuilder(textLayerDiv, pageIndex, viewport, enhanceTextSelection = false, eventBus) {
      return new _text_layer_builder.TextLayerBuilder({
        textLayerDiv,
        eventBus,
        pageIndex,
        viewport,
        findController: this.isInPresentationMode ? null : this.findController,
        enhanceTextSelection: this.isInPresentationMode ? false : enhanceTextSelection
      });
    }
  
    createAnnotationLayerBuilder(pageDiv, pdfPage, imageResourcesPath = "", renderInteractiveForms = false, l10n = _ui_utils.NullL10n) {
      return new _annotation_layer_builder.AnnotationLayerBuilder({
        pageDiv,
        pdfPage,
        imageResourcesPath,
        renderInteractiveForms,
        linkService: this.linkService,
        downloadManager: this.downloadManager,
        l10n
      });
    }
  
    get hasEqualPageSizes() {
      const firstPageView = this._pages[0];
  
      for (let i = 1, ii = this._pages.length; i < ii; ++i) {
        const pageView = this._pages[i];
  
        if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) {
          return false;
        }
      }
  
      return true;
    }
  
    getPagesOverview() {
      const pagesOverview = this._pages.map(function (pageView) {
        const viewport = pageView.pdfPage.getViewport({
          scale: 1
        });
        return {
          width: viewport.width,
          height: viewport.height,
          rotation: viewport.rotation
        };
      });
  
      if (!this.enablePrintAutoRotate) {
        return pagesOverview;
      }
  
      const isFirstPagePortrait = (0, _ui_utils.isPortraitOrientation)(pagesOverview[0]);
      return pagesOverview.map(function (size) {
        if (isFirstPagePortrait === (0, _ui_utils.isPortraitOrientation)(size)) {
          return size;
        }
  
        return {
          width: size.height,
          height: size.width,
          rotation: (size.rotation + 90) % 360
        };
      });
    }
  
    get scrollMode() {
      return this._scrollMode;
    }
  
    set scrollMode(mode) {
      if (this._scrollMode === mode) {
        return;
      }
  
      if (!(0, _ui_utils.isValidScrollMode)(mode)) {
        throw new Error(`Invalid scroll mode: ${mode}`);
      }
  
      this._scrollMode = mode;
      this.eventBus.dispatch("scrollmodechanged", {
        source: this,
        mode
      });
  
      this._updateScrollMode(this._currentPageNumber);
    }
  
    _updateScrollMode(pageNumber = null) {
      const scrollMode = this._scrollMode,
            viewer = this.viewer;
      viewer.classList.toggle("scrollHorizontal", scrollMode === _ui_utils.ScrollMode.HORIZONTAL);
      viewer.classList.toggle("scrollWrapped", scrollMode === _ui_utils.ScrollMode.WRAPPED);
  
      if (!this.pdfDocument || !pageNumber) {
        return;
      }
  
      if (this._currentScaleValue && isNaN(this._currentScaleValue)) {
        this._setScale(this._currentScaleValue, true);
      }
  
      this._setCurrentPageNumber(pageNumber, true);
  
      this.update();
    }
  
    get spreadMode() {
      return this._spreadMode;
    }
  
    set spreadMode(mode) {
      if (this._spreadMode === mode) {
        return;
      }
  
      if (!(0, _ui_utils.isValidSpreadMode)(mode)) {
        throw new Error(`Invalid spread mode: ${mode}`);
      }
  
      this._spreadMode = mode;
      this.eventBus.dispatch("spreadmodechanged", {
        source: this,
        mode
      });
  
      this._updateSpreadMode(this._currentPageNumber);
    }
  
    _updateSpreadMode(pageNumber = null) {
      if (!this.pdfDocument) {
        return;
      }
  
      const viewer = this.viewer,
            pages = this._pages;
      viewer.textContent = "";
  
      if (this._spreadMode === _ui_utils.SpreadMode.NONE) {
        for (let i = 0, iMax = pages.length; i < iMax; ++i) {
          viewer.appendChild(pages[i].div);
        }
      } else {
        const parity = this._spreadMode - 1;
        let spread = null;
  
        for (let i = 0, iMax = pages.length; i < iMax; ++i) {
          if (spread === null) {
            spread = document.createElement("div");
            spread.className = "spread";
            viewer.appendChild(spread);
          } else if (i % 2 === parity) {
            spread = spread.cloneNode(false);
            viewer.appendChild(spread);
          }
  
          spread.appendChild(pages[i].div);
        }
      }
  
      if (!pageNumber) {
        return;
      }
  
      this._setCurrentPageNumber(pageNumber, true);
  
      this.update();
    }
  
  }
  
  exports.BaseViewer = BaseViewer;
  
  /***/ }),
  /* 26 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.DefaultAnnotationLayerFactory = exports.AnnotationLayerBuilder = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_link_service = __webpack_require__(18);
  
  class AnnotationLayerBuilder {
    constructor({
      pageDiv,
      pdfPage,
      linkService,
      downloadManager,
      imageResourcesPath = "",
      renderInteractiveForms = false,
      l10n = _ui_utils.NullL10n
    }) {
      this.pageDiv = pageDiv;
      this.pdfPage = pdfPage;
      this.linkService = linkService;
      this.downloadManager = downloadManager;
      this.imageResourcesPath = imageResourcesPath;
      this.renderInteractiveForms = renderInteractiveForms;
      this.l10n = l10n;
      this.div = null;
      this._cancelled = false;
    }
  
    render(viewport, intent = "display") {
      this.pdfPage.getAnnotations({
        intent
      }).then(annotations => {
        if (this._cancelled) {
          return;
        }
  
        const parameters = {
          viewport: viewport.clone({
            dontFlip: true
          }),
          div: this.div,
          annotations,
          page: this.pdfPage,
          imageResourcesPath: this.imageResourcesPath,
          renderInteractiveForms: this.renderInteractiveForms,
          linkService: this.linkService,
          downloadManager: this.downloadManager
        };
  
        if (this.div) {
          _pdfjsLib.AnnotationLayer.update(parameters);
        } else {
          if (annotations.length === 0) {
            return;
          }
  
          this.div = document.createElement("div");
          this.div.className = "annotationLayer";
          this.pageDiv.appendChild(this.div);
          parameters.div = this.div;
  
          _pdfjsLib.AnnotationLayer.render(parameters);
  
          this.l10n.translate(this.div);
        }
      });
    }
  
    cancel() {
      this._cancelled = true;
    }
  
    hide() {
      if (!this.div) {
        return;
      }
  
      this.div.setAttribute("hidden", "true");
    }
  
  }
  
  exports.AnnotationLayerBuilder = AnnotationLayerBuilder;
  
  class DefaultAnnotationLayerFactory {
    createAnnotationLayerBuilder(pageDiv, pdfPage, imageResourcesPath = "", renderInteractiveForms = false, l10n = _ui_utils.NullL10n) {
      return new AnnotationLayerBuilder({
        pageDiv,
        pdfPage,
        imageResourcesPath,
        renderInteractiveForms,
        linkService: new _pdf_link_service.SimpleLinkService(),
        l10n
      });
    }
  
  }
  
  exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;
  
  /***/ }),
  /* 27 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFPageView = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _pdf_rendering_queue = __webpack_require__(8);
  
  var _viewer_compatibility = __webpack_require__(4);
  
  const MAX_CANVAS_PIXELS = _viewer_compatibility.viewerCompatibilityParams.maxCanvasPixels || 16777216;
  
  class PDFPageView {
    constructor(options) {
      const container = options.container;
      const defaultViewport = options.defaultViewport;
      this.id = options.id;
      this.renderingId = "page" + this.id;
      this.pdfPage = null;
      this.pageLabel = null;
      this.rotation = 0;
      this.scale = options.scale || _ui_utils.DEFAULT_SCALE;
      this.viewport = defaultViewport;
      this.pdfPageRotate = defaultViewport.rotation;
      this.hasRestrictedScaling = false;
      this.textLayerMode = Number.isInteger(options.textLayerMode) ? options.textLayerMode : _ui_utils.TextLayerMode.ENABLE;
      this.imageResourcesPath = options.imageResourcesPath || "";
      this.renderInteractiveForms = options.renderInteractiveForms || false;
      this.useOnlyCssZoom = options.useOnlyCssZoom || false;
      this.maxCanvasPixels = options.maxCanvasPixels || MAX_CANVAS_PIXELS;
      this.eventBus = options.eventBus;
      this.renderingQueue = options.renderingQueue;
      this.textLayerFactory = options.textLayerFactory;
      this.annotationLayerFactory = options.annotationLayerFactory;
      this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
      this.enableWebGL = options.enableWebGL || false;
      this.l10n = options.l10n || _ui_utils.NullL10n;
      this.paintTask = null;
      this.paintedViewportMap = new WeakMap();
      this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
      this.resume = null;
      this.error = null;
      this.annotationLayer = null;
      this.textLayer = null;
      this.zoomLayer = null;
      const div = document.createElement("div");
      div.className = "page";
      div.style.width = Math.floor(this.viewport.width) + "px";
      div.style.height = Math.floor(this.viewport.height) + "px";
      div.setAttribute("data-page-number", this.id);
      this.div = div;
      container.appendChild(div);
    }
  
    setPdfPage(pdfPage) {
      this.pdfPage = pdfPage;
      this.pdfPageRotate = pdfPage.rotate;
      const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = pdfPage.getViewport({
        scale: this.scale * _ui_utils.CSS_UNITS,
        rotation: totalRotation
      });
      this.stats = pdfPage.stats;
      this.reset();
    }
  
    destroy() {
      this.reset();
  
      if (this.pdfPage) {
        this.pdfPage.cleanup();
      }
    }
  
    _resetZoomLayer(removeFromDOM = false) {
      if (!this.zoomLayer) {
        return;
      }
  
      const zoomLayerCanvas = this.zoomLayer.firstChild;
      this.paintedViewportMap.delete(zoomLayerCanvas);
      zoomLayerCanvas.width = 0;
      zoomLayerCanvas.height = 0;
  
      if (removeFromDOM) {
        this.zoomLayer.remove();
      }
  
      this.zoomLayer = null;
    }
  
    reset(keepZoomLayer = false, keepAnnotations = false) {
      this.cancelRendering(keepAnnotations);
      this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
      const div = this.div;
      div.style.width = Math.floor(this.viewport.width) + "px";
      div.style.height = Math.floor(this.viewport.height) + "px";
      const childNodes = div.childNodes;
      const currentZoomLayerNode = keepZoomLayer && this.zoomLayer || null;
      const currentAnnotationNode = keepAnnotations && this.annotationLayer && this.annotationLayer.div || null;
  
      for (let i = childNodes.length - 1; i >= 0; i--) {
        const node = childNodes[i];
  
        if (currentZoomLayerNode === node || currentAnnotationNode === node) {
          continue;
        }
  
        div.removeChild(node);
      }
  
      div.removeAttribute("data-loaded");
  
      if (currentAnnotationNode) {
        this.annotationLayer.hide();
      } else if (this.annotationLayer) {
        this.annotationLayer.cancel();
        this.annotationLayer = null;
      }
  
      if (!currentZoomLayerNode) {
        if (this.canvas) {
          this.paintedViewportMap.delete(this.canvas);
          this.canvas.width = 0;
          this.canvas.height = 0;
          delete this.canvas;
        }
  
        this._resetZoomLayer();
      }
  
      if (this.svg) {
        this.paintedViewportMap.delete(this.svg);
        delete this.svg;
      }
  
      this.loadingIconDiv = document.createElement("div");
      this.loadingIconDiv.className = "loadingIcon";
      div.appendChild(this.loadingIconDiv);
    }
  
    update(scale, rotation) {
      this.scale = scale || this.scale;
  
      if (typeof rotation !== "undefined") {
        this.rotation = rotation;
      }
  
      const totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = this.viewport.clone({
        scale: this.scale * _ui_utils.CSS_UNITS,
        rotation: totalRotation
      });
  
      if (this.svg) {
        this.cssTransform(this.svg, true);
        this.eventBus.dispatch("pagerendered", {
          source: this,
          pageNumber: this.id,
          cssTransform: true,
          timestamp: performance.now()
        });
        return;
      }
  
      let isScalingRestricted = false;
  
      if (this.canvas && this.maxCanvasPixels > 0) {
        const outputScale = this.outputScale;
  
        if ((Math.floor(this.viewport.width) * outputScale.sx | 0) * (Math.floor(this.viewport.height) * outputScale.sy | 0) > this.maxCanvasPixels) {
          isScalingRestricted = true;
        }
      }
  
      if (this.canvas) {
        if (this.useOnlyCssZoom || this.hasRestrictedScaling && isScalingRestricted) {
          this.cssTransform(this.canvas, true);
          this.eventBus.dispatch("pagerendered", {
            source: this,
            pageNumber: this.id,
            cssTransform: true,
            timestamp: performance.now()
          });
          return;
        }
  
        if (!this.zoomLayer && !this.canvas.hasAttribute("hidden")) {
          this.zoomLayer = this.canvas.parentNode;
          this.zoomLayer.style.position = "absolute";
        }
      }
  
      if (this.zoomLayer) {
        this.cssTransform(this.zoomLayer.firstChild);
      }
  
      this.reset(true, true);
    }
  
    cancelRendering(keepAnnotations = false) {
      if (this.paintTask) {
        this.paintTask.cancel();
        this.paintTask = null;
      }
  
      this.resume = null;
  
      if (this.textLayer) {
        this.textLayer.cancel();
        this.textLayer = null;
      }
  
      if (!keepAnnotations && this.annotationLayer) {
        this.annotationLayer.cancel();
        this.annotationLayer = null;
      }
    }
  
    cssTransform(target, redrawAnnotations = false) {
      const width = this.viewport.width;
      const height = this.viewport.height;
      const div = this.div;
      target.style.width = target.parentNode.style.width = div.style.width = Math.floor(width) + "px";
      target.style.height = target.parentNode.style.height = div.style.height = Math.floor(height) + "px";
      const relativeRotation = this.viewport.rotation - this.paintedViewportMap.get(target).rotation;
      const absRotation = Math.abs(relativeRotation);
      let scaleX = 1,
          scaleY = 1;
  
      if (absRotation === 90 || absRotation === 270) {
        scaleX = height / width;
        scaleY = width / height;
      }
  
      const cssTransform = "rotate(" + relativeRotation + "deg) " + "scale(" + scaleX + "," + scaleY + ")";
      target.style.transform = cssTransform;
  
      if (this.textLayer) {
        const textLayerViewport = this.textLayer.viewport;
        const textRelativeRotation = this.viewport.rotation - textLayerViewport.rotation;
        const textAbsRotation = Math.abs(textRelativeRotation);
        let scale = width / textLayerViewport.width;
  
        if (textAbsRotation === 90 || textAbsRotation === 270) {
          scale = width / textLayerViewport.height;
        }
  
        const textLayerDiv = this.textLayer.textLayerDiv;
        let transX, transY;
  
        switch (textAbsRotation) {
          case 0:
            transX = transY = 0;
            break;
  
          case 90:
            transX = 0;
            transY = "-" + textLayerDiv.style.height;
            break;
  
          case 180:
            transX = "-" + textLayerDiv.style.width;
            transY = "-" + textLayerDiv.style.height;
            break;
  
          case 270:
            transX = "-" + textLayerDiv.style.width;
            transY = 0;
            break;
  
          default:
            console.error("Bad rotation value.");
            break;
        }
  
        textLayerDiv.style.transform = "rotate(" + textAbsRotation + "deg) " + "scale(" + scale + ", " + scale + ") " + "translate(" + transX + ", " + transY + ")";
        textLayerDiv.style.transformOrigin = "0% 0%";
      }
  
      if (redrawAnnotations && this.annotationLayer) {
        this.annotationLayer.render(this.viewport, "display");
      }
    }
  
    get width() {
      return this.viewport.width;
    }
  
    get height() {
      return this.viewport.height;
    }
  
    getPagePoint(x, y) {
      return this.viewport.convertToPdfPoint(x, y);
    }
  
    draw() {
      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        console.error("Must be in new state before drawing");
        this.reset();
      }
  
      const {
        div,
        pdfPage
      } = this;
  
      if (!pdfPage) {
        this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
  
        if (this.loadingIconDiv) {
          div.removeChild(this.loadingIconDiv);
          delete this.loadingIconDiv;
        }
  
        return Promise.reject(new Error("pdfPage is not loaded"));
      }
  
      this.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
      const canvasWrapper = document.createElement("div");
      canvasWrapper.style.width = div.style.width;
      canvasWrapper.style.height = div.style.height;
      canvasWrapper.classList.add("canvasWrapper");
  
      if (this.annotationLayer && this.annotationLayer.div) {
        div.insertBefore(canvasWrapper, this.annotationLayer.div);
      } else {
        div.appendChild(canvasWrapper);
      }
  
      let textLayer = null;
  
      if (this.textLayerMode !== _ui_utils.TextLayerMode.DISABLE && this.textLayerFactory) {
        const textLayerDiv = document.createElement("div");
        textLayerDiv.className = "textLayer";
        textLayerDiv.style.width = canvasWrapper.style.width;
        textLayerDiv.style.height = canvasWrapper.style.height;
  
        if (this.annotationLayer && this.annotationLayer.div) {
          div.insertBefore(textLayerDiv, this.annotationLayer.div);
        } else {
          div.appendChild(textLayerDiv);
        }
  
        textLayer = this.textLayerFactory.createTextLayerBuilder(textLayerDiv, this.id - 1, this.viewport, this.textLayerMode === _ui_utils.TextLayerMode.ENABLE_ENHANCE, this.eventBus);
      }
  
      this.textLayer = textLayer;
      let renderContinueCallback = null;
  
      if (this.renderingQueue) {
        renderContinueCallback = cont => {
          if (!this.renderingQueue.isHighestPriority(this)) {
            this.renderingState = _pdf_rendering_queue.RenderingStates.PAUSED;
  
            this.resume = () => {
              this.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
              cont();
            };
  
            return;
          }
  
          cont();
        };
      }
  
      const finishPaintTask = async error => {
        if (paintTask === this.paintTask) {
          this.paintTask = null;
        }
  
        if (error instanceof _pdfjsLib.RenderingCancelledException) {
          this.error = null;
          return;
        }
  
        this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
  
        if (this.loadingIconDiv) {
          div.removeChild(this.loadingIconDiv);
          delete this.loadingIconDiv;
        }
  
        this._resetZoomLayer(true);
  
        this.error = error;
        this.stats = pdfPage.stats;
        this.eventBus.dispatch("pagerendered", {
          source: this,
          pageNumber: this.id,
          cssTransform: false,
          timestamp: performance.now()
        });
  
        if (error) {
          throw error;
        }
      };
  
      const paintTask = this.renderer === _ui_utils.RendererType.SVG ? this.paintOnSvg(canvasWrapper) : this.paintOnCanvas(canvasWrapper);
      paintTask.onRenderContinue = renderContinueCallback;
      this.paintTask = paintTask;
      const resultPromise = paintTask.promise.then(function () {
        return finishPaintTask(null).then(function () {
          if (textLayer) {
            const readableStream = pdfPage.streamTextContent({
              normalizeWhitespace: true
            });
            textLayer.setTextContentStream(readableStream);
            textLayer.render();
          }
        });
      }, function (reason) {
        return finishPaintTask(reason);
      });
  
      if (this.annotationLayerFactory) {
        if (!this.annotationLayer) {
          this.annotationLayer = this.annotationLayerFactory.createAnnotationLayerBuilder(div, pdfPage, this.imageResourcesPath, this.renderInteractiveForms, this.l10n);
        }
  
        this.annotationLayer.render(this.viewport, "display");
      }
  
      div.setAttribute("data-loaded", true);
      this.eventBus.dispatch("pagerender", {
        source: this,
        pageNumber: this.id
      });
      return resultPromise;
    }
  
    paintOnCanvas(canvasWrapper) {
      const renderCapability = (0, _pdfjsLib.createPromiseCapability)();
      const result = {
        promise: renderCapability.promise,
  
        onRenderContinue(cont) {
          cont();
        },
  
        cancel() {
          renderTask.cancel();
        }
  
      };
      const viewport = this.viewport;
      const canvas = document.createElement("canvas");
      this.l10n.get("page_canvas", {
        page: this.id
      }, "Page {{page}}").then(msg => {
        canvas.setAttribute("aria-label", msg);
      });
      canvas.setAttribute("hidden", "hidden");
      let isCanvasHidden = true;
  
      const showCanvas = function () {
        if (isCanvasHidden) {
          canvas.removeAttribute("hidden");
          isCanvasHidden = false;
        }
      };
  
      canvasWrapper.appendChild(canvas);
      this.canvas = canvas;
      canvas.mozOpaque = true;
      const ctx = canvas.getContext("2d", {
        alpha: false
      });
      const outputScale = (0, _ui_utils.getOutputScale)(ctx);
      this.outputScale = outputScale;
  
      if (this.useOnlyCssZoom) {
        const actualSizeViewport = viewport.clone({
          scale: _ui_utils.CSS_UNITS
        });
        outputScale.sx *= actualSizeViewport.width / viewport.width;
        outputScale.sy *= actualSizeViewport.height / viewport.height;
        outputScale.scaled = true;
      }
  
      if (this.maxCanvasPixels > 0) {
        const pixelsInViewport = viewport.width * viewport.height;
        const maxScale = Math.sqrt(this.maxCanvasPixels / pixelsInViewport);
  
        if (outputScale.sx > maxScale || outputScale.sy > maxScale) {
          outputScale.sx = maxScale;
          outputScale.sy = maxScale;
          outputScale.scaled = true;
          this.hasRestrictedScaling = true;
        } else {
          this.hasRestrictedScaling = false;
        }
      }
  
      const sfx = (0, _ui_utils.approximateFraction)(outputScale.sx);
      const sfy = (0, _ui_utils.approximateFraction)(outputScale.sy);
      canvas.width = (0, _ui_utils.roundToDivide)(viewport.width * outputScale.sx, sfx[0]);
      canvas.height = (0, _ui_utils.roundToDivide)(viewport.height * outputScale.sy, sfy[0]);
      canvas.style.width = (0, _ui_utils.roundToDivide)(viewport.width, sfx[1]) + "px";
      canvas.style.height = (0, _ui_utils.roundToDivide)(viewport.height, sfy[1]) + "px";
      this.paintedViewportMap.set(canvas, viewport);
      const transform = !outputScale.scaled ? null : [outputScale.sx, 0, 0, outputScale.sy, 0, 0];
      const renderContext = {
        canvasContext: ctx,
        transform,
        viewport: this.viewport,
        enableWebGL: this.enableWebGL,
        renderInteractiveForms: this.renderInteractiveForms
      };
      const renderTask = this.pdfPage.render(renderContext);
  
      renderTask.onContinue = function (cont) {
        showCanvas();
  
        if (result.onRenderContinue) {
          result.onRenderContinue(cont);
        } else {
          cont();
        }
      };
  
      renderTask.promise.then(function () {
        showCanvas();
        renderCapability.resolve(undefined);
      }, function (error) {
        showCanvas();
        renderCapability.reject(error);
      });
      return result;
    }
  
    paintOnSvg(wrapper) {
      let cancelled = false;
  
      const ensureNotCancelled = () => {
        if (cancelled) {
          throw new _pdfjsLib.RenderingCancelledException(`Rendering cancelled, page ${this.id}`, "svg");
        }
      };
  
      const pdfPage = this.pdfPage;
      const actualSizeViewport = this.viewport.clone({
        scale: _ui_utils.CSS_UNITS
      });
      const promise = pdfPage.getOperatorList().then(opList => {
        ensureNotCancelled();
        const svgGfx = new _pdfjsLib.SVGGraphics(pdfPage.commonObjs, pdfPage.objs);
        return svgGfx.getSVG(opList, actualSizeViewport).then(svg => {
          ensureNotCancelled();
          this.svg = svg;
          this.paintedViewportMap.set(svg, actualSizeViewport);
          svg.style.width = wrapper.style.width;
          svg.style.height = wrapper.style.height;
          this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
          wrapper.appendChild(svg);
        });
      });
      return {
        promise,
  
        onRenderContinue(cont) {
          cont();
        },
  
        cancel() {
          cancelled = true;
        }
  
      };
    }
  
    setPageLabel(label) {
      this.pageLabel = typeof label === "string" ? label : null;
  
      if (this.pageLabel !== null) {
        this.div.setAttribute("data-page-label", this.pageLabel);
      } else {
        this.div.removeAttribute("data-page-label");
      }
    }
  
  }
  
  exports.PDFPageView = PDFPageView;
  
  /***/ }),
  /* 28 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.DefaultTextLayerFactory = exports.TextLayerBuilder = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  const EXPAND_DIVS_TIMEOUT = 300;
  
  class TextLayerBuilder {
    constructor({
      textLayerDiv,
      eventBus,
      pageIndex,
      viewport,
      findController = null,
      enhanceTextSelection = false
    }) {
      this.textLayerDiv = textLayerDiv;
      this.eventBus = eventBus;
      this.textContent = null;
      this.textContentItemsStr = [];
      this.textContentStream = null;
      this.renderingDone = false;
      this.pageIdx = pageIndex;
      this.pageNumber = this.pageIdx + 1;
      this.matches = [];
      this.viewport = viewport;
      this.textDivs = [];
      this.findController = findController;
      this.textLayerRenderTask = null;
      this.enhanceTextSelection = enhanceTextSelection;
      this._onUpdateTextLayerMatches = null;
  
      this._bindMouse();
    }
  
    _finishRendering() {
      this.renderingDone = true;
  
      if (!this.enhanceTextSelection) {
        const endOfContent = document.createElement("div");
        endOfContent.className = "endOfContent";
        this.textLayerDiv.appendChild(endOfContent);
      }
  
      this.eventBus.dispatch("textlayerrendered", {
        source: this,
        pageNumber: this.pageNumber,
        numTextDivs: this.textDivs.length
      });
    }
  
    render(timeout = 0) {
      if (!(this.textContent || this.textContentStream) || this.renderingDone) {
        return;
      }
  
      this.cancel();
      this.textDivs = [];
      const textLayerFrag = document.createDocumentFragment();
      this.textLayerRenderTask = (0, _pdfjsLib.renderTextLayer)({
        textContent: this.textContent,
        textContentStream: this.textContentStream,
        container: textLayerFrag,
        viewport: this.viewport,
        textDivs: this.textDivs,
        textContentItemsStr: this.textContentItemsStr,
        timeout,
        enhanceTextSelection: this.enhanceTextSelection
      });
      this.textLayerRenderTask.promise.then(() => {
        this.textLayerDiv.appendChild(textLayerFrag);
  
        this._finishRendering();
  
        this._updateMatches();
      }, function (reason) {});
  
      if (!this._onUpdateTextLayerMatches) {
        this._onUpdateTextLayerMatches = evt => {
          if (evt.pageIndex === this.pageIdx || evt.pageIndex === -1) {
            this._updateMatches();
          }
        };
  
        this.eventBus._on("updatetextlayermatches", this._onUpdateTextLayerMatches);
      }
    }
  
    cancel() {
      if (this.textLayerRenderTask) {
        this.textLayerRenderTask.cancel();
        this.textLayerRenderTask = null;
      }
  
      if (this._onUpdateTextLayerMatches) {
        this.eventBus._off("updatetextlayermatches", this._onUpdateTextLayerMatches);
  
        this._onUpdateTextLayerMatches = null;
      }
    }
  
    setTextContentStream(readableStream) {
      this.cancel();
      this.textContentStream = readableStream;
    }
  
    setTextContent(textContent) {
      this.cancel();
      this.textContent = textContent;
    }
  
    _convertMatches(matches, matchesLength) {
      if (!matches) {
        return [];
      }
  
      const {
        findController,
        textContentItemsStr
      } = this;
      let i = 0,
          iIndex = 0;
      const end = textContentItemsStr.length - 1;
      const queryLen = findController.state.query.length;
      const result = [];
  
      for (let m = 0, mm = matches.length; m < mm; m++) {
        let matchIdx = matches[m];
  
        while (i !== end && matchIdx >= iIndex + textContentItemsStr[i].length) {
          iIndex += textContentItemsStr[i].length;
          i++;
        }
  
        if (i === textContentItemsStr.length) {
          console.error("Could not find a matching mapping");
        }
  
        const match = {
          begin: {
            divIdx: i,
            offset: matchIdx - iIndex
          }
        };
  
        if (matchesLength) {
          matchIdx += matchesLength[m];
        } else {
          matchIdx += queryLen;
        }
  
        while (i !== end && matchIdx > iIndex + textContentItemsStr[i].length) {
          iIndex += textContentItemsStr[i].length;
          i++;
        }
  
        match.end = {
          divIdx: i,
          offset: matchIdx - iIndex
        };
        result.push(match);
      }
  
      return result;
    }
  
    _renderMatches(matches) {
      if (matches.length === 0) {
        return;
      }
  
      const {
        findController,
        pageIdx,
        textContentItemsStr,
        textDivs
      } = this;
      const isSelectedPage = pageIdx === findController.selected.pageIdx;
      const selectedMatchIdx = findController.selected.matchIdx;
      const highlightAll = findController.state.highlightAll;
      let prevEnd = null;
      const infinity = {
        divIdx: -1,
        offset: undefined
      };
  
      function beginText(begin, className) {
        const divIdx = begin.divIdx;
        textDivs[divIdx].textContent = "";
        appendTextToDiv(divIdx, 0, begin.offset, className);
      }
  
      function appendTextToDiv(divIdx, fromOffset, toOffset, className) {
        const div = textDivs[divIdx];
        const content = textContentItemsStr[divIdx].substring(fromOffset, toOffset);
        const node = document.createTextNode(content);
  
        if (className) {
          const span = document.createElement("span");
          span.className = className;
          span.appendChild(node);
          div.appendChild(span);
          return;
        }
  
        div.appendChild(node);
      }
  
      let i0 = selectedMatchIdx,
          i1 = i0 + 1;
  
      if (highlightAll) {
        i0 = 0;
        i1 = matches.length;
      } else if (!isSelectedPage) {
        return;
      }
  
      for (let i = i0; i < i1; i++) {
        const match = matches[i];
        const begin = match.begin;
        const end = match.end;
        const isSelected = isSelectedPage && i === selectedMatchIdx;
        const highlightSuffix = isSelected ? " selected" : "";
  
        if (isSelected) {
          findController.scrollMatchIntoView({
            element: textDivs[begin.divIdx],
            pageIndex: pageIdx,
            matchIndex: selectedMatchIdx
          });
        }
  
        if (!prevEnd || begin.divIdx !== prevEnd.divIdx) {
          if (prevEnd !== null) {
            appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
          }
  
          beginText(begin);
        } else {
          appendTextToDiv(prevEnd.divIdx, prevEnd.offset, begin.offset);
        }
  
        if (begin.divIdx === end.divIdx) {
          appendTextToDiv(begin.divIdx, begin.offset, end.offset, "highlight" + highlightSuffix);
        } else {
          appendTextToDiv(begin.divIdx, begin.offset, infinity.offset, "highlight begin" + highlightSuffix);
  
          for (let n0 = begin.divIdx + 1, n1 = end.divIdx; n0 < n1; n0++) {
            textDivs[n0].className = "highlight middle" + highlightSuffix;
          }
  
          beginText(end, "highlight end" + highlightSuffix);
        }
  
        prevEnd = end;
      }
  
      if (prevEnd) {
        appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
      }
    }
  
    _updateMatches() {
      if (!this.renderingDone) {
        return;
      }
  
      const {
        findController,
        matches,
        pageIdx,
        textContentItemsStr,
        textDivs
      } = this;
      let clearedUntilDivIdx = -1;
  
      for (let i = 0, ii = matches.length; i < ii; i++) {
        const match = matches[i];
        const begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);
  
        for (let n = begin, end = match.end.divIdx; n <= end; n++) {
          const div = textDivs[n];
          div.textContent = textContentItemsStr[n];
          div.className = "";
        }
  
        clearedUntilDivIdx = match.end.divIdx + 1;
      }
  
      if (!findController || !findController.highlightMatches) {
        return;
      }
  
      const pageMatches = findController.pageMatches[pageIdx] || null;
      const pageMatchesLength = findController.pageMatchesLength[pageIdx] || null;
      this.matches = this._convertMatches(pageMatches, pageMatchesLength);
  
      this._renderMatches(this.matches);
    }
  
    _bindMouse() {
      const div = this.textLayerDiv;
      let expandDivsTimer = null;
      div.addEventListener("mousedown", evt => {
        if (this.enhanceTextSelection && this.textLayerRenderTask) {
          this.textLayerRenderTask.expandTextDivs(true);
  
          if (expandDivsTimer) {
            clearTimeout(expandDivsTimer);
            expandDivsTimer = null;
          }
  
          return;
        }
  
        const end = div.querySelector(".endOfContent");
  
        if (!end) {
          return;
        }
  
        let adjustTop = evt.target !== div;
        adjustTop = adjustTop && window.getComputedStyle(end).getPropertyValue("-moz-user-select") !== "none";
  
        if (adjustTop) {
          const divBounds = div.getBoundingClientRect();
          const r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
          end.style.top = (r * 100).toFixed(2) + "%";
        }
  
        end.classList.add("active");
      });
      div.addEventListener("mouseup", () => {
        if (this.enhanceTextSelection && this.textLayerRenderTask) {
          expandDivsTimer = setTimeout(() => {
            if (this.textLayerRenderTask) {
              this.textLayerRenderTask.expandTextDivs(false);
            }
  
            expandDivsTimer = null;
          }, EXPAND_DIVS_TIMEOUT);
          return;
        }
  
        const end = div.querySelector(".endOfContent");
  
        if (!end) {
          return;
        }
  
        end.style.top = "";
        end.classList.remove("active");
      });
    }
  
  }
  
  exports.TextLayerBuilder = TextLayerBuilder;
  
  class DefaultTextLayerFactory {
    createTextLayerBuilder(textLayerDiv, pageIndex, viewport, enhanceTextSelection = false, eventBus) {
      return new TextLayerBuilder({
        textLayerDiv,
        pageIndex,
        viewport,
        enhanceTextSelection,
        eventBus
      });
    }
  
  }
  
  exports.DefaultTextLayerFactory = DefaultTextLayerFactory;
  
  /***/ }),
  /* 29 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.SecondaryToolbar = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  var _pdf_cursor_tools = __webpack_require__(6);
  
  var _pdf_single_page_viewer = __webpack_require__(30);
  
  class SecondaryToolbar {
    constructor(options, mainContainer, eventBus) {
      this.toolbar = options.toolbar;
      this.toggleButton = options.toggleButton;
      this.toolbarButtonContainer = options.toolbarButtonContainer;
      this.buttons = [{
        element: options.presentationModeButton,
        eventName: "presentationmode",
        close: true
      }, {
        element: options.openFileButton,
        eventName: "openfile",
        close: true
      }, {
        element: options.printButton,
        eventName: "print",
        close: true
      }, {
        element: options.downloadButton,
        eventName: "download",
        close: true
      }, {
        element: options.viewBookmarkButton,
        eventName: null,
        close: true
      }, {
        element: options.firstPageButton,
        eventName: "firstpage",
        close: true
      }, {
        element: options.lastPageButton,
        eventName: "lastpage",
        close: true
      }, {
        element: options.pageRotateCwButton,
        eventName: "rotatecw",
        close: false
      }, {
        element: options.pageRotateCcwButton,
        eventName: "rotateccw",
        close: false
      }, {
        element: options.cursorSelectToolButton,
        eventName: "switchcursortool",
        eventDetails: {
          tool: _pdf_cursor_tools.CursorTool.SELECT
        },
        close: true
      }, {
        element: options.cursorHandToolButton,
        eventName: "switchcursortool",
        eventDetails: {
          tool: _pdf_cursor_tools.CursorTool.HAND
        },
        close: true
      }, {
        element: options.scrollVerticalButton,
        eventName: "switchscrollmode",
        eventDetails: {
          mode: _ui_utils.ScrollMode.VERTICAL
        },
        close: true
      }, {
        element: options.scrollHorizontalButton,
        eventName: "switchscrollmode",
        eventDetails: {
          mode: _ui_utils.ScrollMode.HORIZONTAL
        },
        close: true
      }, {
        element: options.scrollWrappedButton,
        eventName: "switchscrollmode",
        eventDetails: {
          mode: _ui_utils.ScrollMode.WRAPPED
        },
        close: true
      }, {
        element: options.spreadNoneButton,
        eventName: "switchspreadmode",
        eventDetails: {
          mode: _ui_utils.SpreadMode.NONE
        },
        close: true
      }, {
        element: options.spreadOddButton,
        eventName: "switchspreadmode",
        eventDetails: {
          mode: _ui_utils.SpreadMode.ODD
        },
        close: true
      }, {
        element: options.spreadEvenButton,
        eventName: "switchspreadmode",
        eventDetails: {
          mode: _ui_utils.SpreadMode.EVEN
        },
        close: true
      }, {
        element: options.documentPropertiesButton,
        eventName: "documentproperties",
        close: true
      }];
      this.items = {
        firstPage: options.firstPageButton,
        lastPage: options.lastPageButton,
        pageRotateCw: options.pageRotateCwButton,
        pageRotateCcw: options.pageRotateCcwButton
      };
      this.mainContainer = mainContainer;
      this.eventBus = eventBus;
      this.opened = false;
      this.containerHeight = null;
      this.previousContainerHeight = null;
      this.reset();
  
      this._bindClickListeners();
  
      this._bindCursorToolsListener(options);
  
      this._bindScrollModeListener(options);
  
      this._bindSpreadModeListener(options);
  
      this.eventBus._on("resize", this._setMaxHeight.bind(this));
  
      this.eventBus._on("baseviewerinit", evt => {
        if (evt.source instanceof _pdf_single_page_viewer.PDFSinglePageViewer) {
          this.toolbarButtonContainer.classList.add("hiddenScrollModeButtons", "hiddenSpreadModeButtons");
        } else {
          this.toolbarButtonContainer.classList.remove("hiddenScrollModeButtons", "hiddenSpreadModeButtons");
        }
      });
    }
  
    get isOpen() {
      return this.opened;
    }
  
    setPageNumber(pageNumber) {
      this.pageNumber = pageNumber;
  
      this._updateUIState();
    }
  
    setPagesCount(pagesCount) {
      this.pagesCount = pagesCount;
  
      this._updateUIState();
    }
  
    reset() {
      this.pageNumber = 0;
      this.pagesCount = 0;
  
      this._updateUIState();
  
      this.eventBus.dispatch("secondarytoolbarreset", {
        source: this
      });
    }
  
    _updateUIState() {
      this.items.firstPage.disabled = this.pageNumber <= 1;
      this.items.lastPage.disabled = this.pageNumber >= this.pagesCount;
      this.items.pageRotateCw.disabled = this.pagesCount === 0;
      this.items.pageRotateCcw.disabled = this.pagesCount === 0;
    }
  
    _bindClickListeners() {
      this.toggleButton.addEventListener("click", this.toggle.bind(this));
  
      for (const {
        element,
        eventName,
        close,
        eventDetails
      } of this.buttons) {
        element.addEventListener("click", evt => {
          if (eventName !== null) {
            const details = {
              source: this
            };
  
            for (const property in eventDetails) {
              details[property] = eventDetails[property];
            }
  
            this.eventBus.dispatch(eventName, details);
          }
  
          if (close) {
            this.close();
          }
        });
      }
    }
  
    _bindCursorToolsListener(buttons) {
      this.eventBus._on("cursortoolchanged", function ({
        tool
      }) {
        buttons.cursorSelectToolButton.classList.toggle("toggled", tool === _pdf_cursor_tools.CursorTool.SELECT);
        buttons.cursorHandToolButton.classList.toggle("toggled", tool === _pdf_cursor_tools.CursorTool.HAND);
      });
    }
  
    _bindScrollModeListener(buttons) {
      function scrollModeChanged({
        mode
      }) {
        buttons.scrollVerticalButton.classList.toggle("toggled", mode === _ui_utils.ScrollMode.VERTICAL);
        buttons.scrollHorizontalButton.classList.toggle("toggled", mode === _ui_utils.ScrollMode.HORIZONTAL);
        buttons.scrollWrappedButton.classList.toggle("toggled", mode === _ui_utils.ScrollMode.WRAPPED);
        const isScrollModeHorizontal = mode === _ui_utils.ScrollMode.HORIZONTAL;
        buttons.spreadNoneButton.disabled = isScrollModeHorizontal;
        buttons.spreadOddButton.disabled = isScrollModeHorizontal;
        buttons.spreadEvenButton.disabled = isScrollModeHorizontal;
      }
  
      this.eventBus._on("scrollmodechanged", scrollModeChanged);
  
      this.eventBus._on("secondarytoolbarreset", evt => {
        if (evt.source === this) {
          scrollModeChanged({
            mode: _ui_utils.ScrollMode.VERTICAL
          });
        }
      });
    }
  
    _bindSpreadModeListener(buttons) {
      function spreadModeChanged({
        mode
      }) {
        buttons.spreadNoneButton.classList.toggle("toggled", mode === _ui_utils.SpreadMode.NONE);
        buttons.spreadOddButton.classList.toggle("toggled", mode === _ui_utils.SpreadMode.ODD);
        buttons.spreadEvenButton.classList.toggle("toggled", mode === _ui_utils.SpreadMode.EVEN);
      }
  
      this.eventBus._on("spreadmodechanged", spreadModeChanged);
  
      this.eventBus._on("secondarytoolbarreset", evt => {
        if (evt.source === this) {
          spreadModeChanged({
            mode: _ui_utils.SpreadMode.NONE
          });
        }
      });
    }
  
    open() {
      if (this.opened) {
        return;
      }
  
      this.opened = true;
  
      this._setMaxHeight();
  
      this.toggleButton.classList.add("toggled");
      this.toolbar.classList.remove("hidden");
    }
  
    close() {
      if (!this.opened) {
        return;
      }
  
      this.opened = false;
      this.toolbar.classList.add("hidden");
      this.toggleButton.classList.remove("toggled");
    }
  
    toggle() {
      if (this.opened) {
        this.close();
      } else {
        this.open();
      }
    }
  
    _setMaxHeight() {
      if (!this.opened) {
        return;
      }
  
      this.containerHeight = this.mainContainer.clientHeight;
  
      if (this.containerHeight === this.previousContainerHeight) {
        return;
      }
  
      this.toolbarButtonContainer.style.maxHeight = `${this.containerHeight - _ui_utils.SCROLLBAR_PADDING}px`;
      this.previousContainerHeight = this.containerHeight;
    }
  
  }
  
  exports.SecondaryToolbar = SecondaryToolbar;
  
  /***/ }),
  /* 30 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFSinglePageViewer = void 0;
  
  var _base_viewer = __webpack_require__(25);
  
  var _pdfjsLib = __webpack_require__(5);
  
  class PDFSinglePageViewer extends _base_viewer.BaseViewer {
    constructor(options) {
      super(options);
  
      this.eventBus._on("pagesinit", evt => {
        this._ensurePageViewVisible();
      });
    }
  
    get _viewerElement() {
      return (0, _pdfjsLib.shadow)(this, "_viewerElement", this._shadowViewer);
    }
  
    _resetView() {
      super._resetView();
  
      this._previousPageNumber = 1;
      this._shadowViewer = document.createDocumentFragment();
      this._updateScrollDown = null;
    }
  
    _ensurePageViewVisible() {
      const pageView = this._pages[this._currentPageNumber - 1];
      const previousPageView = this._pages[this._previousPageNumber - 1];
      const viewerNodes = this.viewer.childNodes;
  
      switch (viewerNodes.length) {
        case 0:
          this.viewer.appendChild(pageView.div);
          break;
  
        case 1:
          if (viewerNodes[0] !== previousPageView.div) {
            throw new Error("_ensurePageViewVisible: Unexpected previously visible page.");
          }
  
          if (pageView === previousPageView) {
            break;
          }
  
          this._shadowViewer.appendChild(previousPageView.div);
  
          this.viewer.appendChild(pageView.div);
          this.container.scrollTop = 0;
          break;
  
        default:
          throw new Error("_ensurePageViewVisible: Only one page should be visible at a time.");
      }
  
      this._previousPageNumber = this._currentPageNumber;
    }
  
    _scrollUpdate() {
      if (this._updateScrollDown) {
        this._updateScrollDown();
      }
  
      super._scrollUpdate();
    }
  
    _scrollIntoView({
      pageDiv,
      pageSpot = null,
      pageNumber = null
    }) {
      if (pageNumber) {
        this._setCurrentPageNumber(pageNumber);
      }
  
      const scrolledDown = this._currentPageNumber >= this._previousPageNumber;
  
      this._ensurePageViewVisible();
  
      this.update();
  
      super._scrollIntoView({
        pageDiv,
        pageSpot,
        pageNumber
      });
  
      this._updateScrollDown = () => {
        this.scroll.down = scrolledDown;
        this._updateScrollDown = null;
      };
    }
  
    _getVisiblePages() {
      return this._getCurrentVisiblePage();
    }
  
    _updateHelper(visiblePages) {}
  
    get _isScrollModeHorizontal() {
      return (0, _pdfjsLib.shadow)(this, "_isScrollModeHorizontal", false);
    }
  
    _updateScrollMode() {}
  
    _updateSpreadMode() {}
  
  }
  
  exports.PDFSinglePageViewer = PDFSinglePageViewer;
  
  /***/ }),
  /* 31 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.Toolbar = void 0;
  
  var _ui_utils = __webpack_require__(2);
  
  const PAGE_NUMBER_LOADING_INDICATOR = "visiblePageIsLoading";
  const SCALE_SELECT_CONTAINER_WIDTH = 140;
  const SCALE_SELECT_WIDTH = 162;
  
  class Toolbar {
    constructor(options, eventBus, l10n = _ui_utils.NullL10n) {
      this.toolbar = options.container;
      this.eventBus = eventBus;
      this.l10n = l10n;
      this.buttons = [{
        element: options.previous,
        eventName: "previouspage"
      }, {
        element: options.next,
        eventName: "nextpage"
      }, {
        element: options.zoomIn,
        eventName: "zoomin"
      }, {
        element: options.zoomOut,
        eventName: "zoomout"
      }, {
        element: options.openFile,
        eventName: "openfile"
      }, {
        element: options.print,
        eventName: "print"
      }, {
        element: options.presentationModeButton,
        eventName: "presentationmode"
      }, {
        element: options.download,
        eventName: "download"
      }, {
        element: options.viewBookmark,
        eventName: null
      }];
      this.items = {
        numPages: options.numPages,
        pageNumber: options.pageNumber,
        scaleSelectContainer: options.scaleSelectContainer,
        scaleSelect: options.scaleSelect,
        customScaleOption: options.customScaleOption,
        previous: options.previous,
        next: options.next,
        zoomIn: options.zoomIn,
        zoomOut: options.zoomOut
      };
      this._wasLocalized = false;
      this.reset();
  
      this._bindListeners();
    }
  
    setPageNumber(pageNumber, pageLabel) {
      this.pageNumber = pageNumber;
      this.pageLabel = pageLabel;
  
      this._updateUIState(false);
    }
  
    setPagesCount(pagesCount, hasPageLabels) {
      this.pagesCount = pagesCount;
      this.hasPageLabels = hasPageLabels;
  
      this._updateUIState(true);
    }
  
    setPageScale(pageScaleValue, pageScale) {
      this.pageScaleValue = (pageScaleValue || pageScale).toString();
      this.pageScale = pageScale;
  
      this._updateUIState(false);
    }
  
    reset() {
      this.pageNumber = 0;
      this.pageLabel = null;
      this.hasPageLabels = false;
      this.pagesCount = 0;
      this.pageScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
      this.pageScale = _ui_utils.DEFAULT_SCALE;
  
      this._updateUIState(true);
  
      this.updateLoadingIndicatorState();
    }
  
    _bindListeners() {
      const {
        pageNumber,
        scaleSelect
      } = this.items;
      const self = this;
  
      for (const {
        element,
        eventName
      } of this.buttons) {
        element.addEventListener("click", evt => {
          if (eventName !== null) {
            this.eventBus.dispatch(eventName, {
              source: this
            });
          }
        });
      }
  
      pageNumber.addEventListener("click", function () {
        this.select();
      });
      pageNumber.addEventListener("change", function () {
        self.eventBus.dispatch("pagenumberchanged", {
          source: self,
          value: this.value
        });
      });
      scaleSelect.addEventListener("change", function () {
        if (this.value === "custom") {
          return;
        }
  
        self.eventBus.dispatch("scalechanged", {
          source: self,
          value: this.value
        });
      });
      scaleSelect.oncontextmenu = _ui_utils.noContextMenuHandler;
  
      this.eventBus._on("localized", () => {
        this._wasLocalized = true;
  
        this._adjustScaleWidth();
  
        this._updateUIState(true);
      });
    }
  
    _updateUIState(resetNumPages = false) {
      if (!this._wasLocalized) {
        return;
      }
  
      const {
        pageNumber,
        pagesCount,
        pageScaleValue,
        pageScale,
        items
      } = this;
  
      if (resetNumPages) {
        if (this.hasPageLabels) {
          items.pageNumber.type = "text";
        } else {
          items.pageNumber.type = "number";
          this.l10n.get("of_pages", {
            pagesCount
          }, "of {{pagesCount}}").then(msg => {
            items.numPages.textContent = msg;
          });
        }
  
        items.pageNumber.max = pagesCount;
      }
  
      if (this.hasPageLabels) {
        items.pageNumber.value = this.pageLabel;
        this.l10n.get("page_of_pages", {
          pageNumber,
          pagesCount
        }, "({{pageNumber}} of {{pagesCount}})").then(msg => {
          items.numPages.textContent = msg;
        });
      } else {
        items.pageNumber.value = pageNumber;
      }
  
      items.previous.disabled = pageNumber <= 1;
      items.next.disabled = pageNumber >= pagesCount;
      items.zoomOut.disabled = pageScale <= _ui_utils.MIN_SCALE;
      items.zoomIn.disabled = pageScale >= _ui_utils.MAX_SCALE;
      const customScale = Math.round(pageScale * 10000) / 100;
      this.l10n.get("page_scale_percent", {
        scale: customScale
      }, "{{scale}}%").then(msg => {
        let predefinedValueFound = false;
  
        for (const option of items.scaleSelect.options) {
          if (option.value !== pageScaleValue) {
            option.selected = false;
            continue;
          }
  
          option.selected = true;
          predefinedValueFound = true;
        }
  
        if (!predefinedValueFound) {
          items.customScaleOption.textContent = msg;
          items.customScaleOption.selected = true;
        }
      });
    }
  
    updateLoadingIndicatorState(loading = false) {
      const pageNumberInput = this.items.pageNumber;
      pageNumberInput.classList.toggle(PAGE_NUMBER_LOADING_INDICATOR, loading);
    }
  
    async _adjustScaleWidth() {
      const {
        items,
        l10n
      } = this;
      const predefinedValuesPromise = Promise.all([l10n.get("page_scale_auto", null, "Automatic Zoom"), l10n.get("page_scale_actual", null, "Actual Size"), l10n.get("page_scale_fit", null, "Page Fit"), l10n.get("page_scale_width", null, "Page Width")]);
      let canvas = document.createElement("canvas");
      canvas.mozOpaque = true;
      let ctx = canvas.getContext("2d", {
        alpha: false
      });
      await _ui_utils.animationStarted;
      const {
        fontSize,
        fontFamily
      } = getComputedStyle(items.scaleSelect);
      ctx.font = `${fontSize} ${fontFamily}`;
      let maxWidth = 0;
  
      for (const predefinedValue of await predefinedValuesPromise) {
        const {
          width
        } = ctx.measureText(predefinedValue);
  
        if (width > maxWidth) {
          maxWidth = width;
        }
      }
  
      const overflow = SCALE_SELECT_WIDTH - SCALE_SELECT_CONTAINER_WIDTH;
      maxWidth += 1.5 * overflow;
  
      if (maxWidth > SCALE_SELECT_CONTAINER_WIDTH) {
        items.scaleSelect.style.width = `${maxWidth + overflow}px`;
        items.scaleSelectContainer.style.width = `${maxWidth}px`;
      }
  
      canvas.width = 0;
      canvas.height = 0;
      canvas = ctx = null;
    }
  
  }
  
  exports.Toolbar = Toolbar;
  
  /***/ }),
  /* 32 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.ViewHistory = void 0;
  const DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
  
  class ViewHistory {
    constructor(fingerprint, cacheSize = DEFAULT_VIEW_HISTORY_CACHE_SIZE) {
      this.fingerprint = fingerprint;
      this.cacheSize = cacheSize;
      this._initializedPromise = this._readFromStorage().then(databaseStr => {
        const database = JSON.parse(databaseStr || "{}");
        let index = -1;
  
        if (!Array.isArray(database.files)) {
          database.files = [];
        } else {
          while (database.files.length >= this.cacheSize) {
            database.files.shift();
          }
  
          for (let i = 0, ii = database.files.length; i < ii; i++) {
            const branch = database.files[i];
  
            if (branch.fingerprint === this.fingerprint) {
              index = i;
              break;
            }
          }
        }
  
        if (index === -1) {
          index = database.files.push({
            fingerprint: this.fingerprint
          }) - 1;
        }
  
        this.file = database.files[index];
        this.database = database;
      });
    }
  
    async _writeToStorage() {
      const databaseStr = JSON.stringify(this.database);
      localStorage.setItem("pdfjs.history", databaseStr);
    }
  
    async _readFromStorage() {
      return localStorage.getItem("pdfjs.history");
    }
  
    async set(name, val) {
      await this._initializedPromise;
      this.file[name] = val;
      return this._writeToStorage();
    }
  
    async setMultiple(properties) {
      await this._initializedPromise;
  
      for (const name in properties) {
        this.file[name] = properties[name];
      }
  
      return this._writeToStorage();
    }
  
    async get(name, defaultValue) {
      await this._initializedPromise;
      const val = this.file[name];
      return val !== undefined ? val : defaultValue;
    }
  
    async getMultiple(properties) {
      await this._initializedPromise;
      const values = Object.create(null);
  
      for (const name in properties) {
        const val = this.file[name];
        values[name] = val !== undefined ? val : properties[name];
      }
  
      return values;
    }
  
  }
  
  exports.ViewHistory = ViewHistory;
  
  /***/ }),
  /* 33 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.GenericCom = void 0;
  
  var _app = __webpack_require__(1);
  
  var _preferences = __webpack_require__(34);
  
  var _download_manager = __webpack_require__(35);
  
  var _genericl10n = __webpack_require__(36);
  
  ;
  const GenericCom = {};
  exports.GenericCom = GenericCom;
  
  class GenericPreferences extends _preferences.BasePreferences {
    async _writeToStorage(prefObj) {
      localStorage.setItem("pdfjs.preferences", JSON.stringify(prefObj));
    }
  
    async _readFromStorage(prefObj) {
      return JSON.parse(localStorage.getItem("pdfjs.preferences"));
    }
  
  }
  
  class GenericExternalServices extends _app.DefaultExternalServices {
    static createDownloadManager(options) {
      return new _download_manager.DownloadManager(options);
    }
  
    static createPreferences() {
      return new GenericPreferences();
    }
  
    static createL10n({
      locale = "en-US"
    }) {
      return new _genericl10n.GenericL10n(locale);
    }
  
  }
  
  _app.PDFViewerApplication.externalServices = GenericExternalServices;
  
  /***/ }),
  /* 34 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.BasePreferences = void 0;
  
  var _app_options = __webpack_require__(3);
  
  let defaultPreferences = null;
  
  function getDefaultPreferences() {
    if (!defaultPreferences) {
      defaultPreferences = Promise.resolve({
        "cursorToolOnLoad": 0,
        "defaultZoomValue": "",
        "disablePageLabels": false,
        "enablePermissions": false,
        "enablePrintAutoRotate": false,
        "enableWebGL": false,
        "externalLinkTarget": 0,
        "historyUpdateUrl": false,
        "ignoreDestinationZoom": false,
        "pdfBugEnabled": false,
        "renderer": "canvas",
        "renderInteractiveForms": false,
        "sidebarViewOnLoad": -1,
        "scrollModeOnLoad": -1,
        "spreadModeOnLoad": -1,
        "textLayerMode": 1,
        "useOnlyCssZoom": false,
        "viewOnLoad": 0,
        "disableAutoFetch": false,
        "disableFontFace": false,
        "disableRange": false,
        "disableStream": false
      });
    }
  
    return defaultPreferences;
  }
  
  class BasePreferences {
    constructor() {
      if (this.constructor === BasePreferences) {
        throw new Error("Cannot initialize BasePreferences.");
      }
  
      this.prefs = null;
      this._initializedPromise = getDefaultPreferences().then(defaults => {
        Object.defineProperty(this, "defaults", {
          value: Object.freeze(defaults),
          writable: false,
          enumerable: true,
          configurable: false
        });
        this.prefs = Object.assign(Object.create(null), defaults);
        return this._readFromStorage(defaults);
      }).then(prefs => {
        if (!prefs) {
          return;
        }
  
        for (const name in prefs) {
          const defaultValue = this.defaults[name],
                prefValue = prefs[name];
  
          if (defaultValue === undefined || typeof prefValue !== typeof defaultValue) {
            continue;
          }
  
          this.prefs[name] = prefValue;
        }
      });
    }
  
    async _writeToStorage(prefObj) {
      throw new Error("Not implemented: _writeToStorage");
    }
  
    async _readFromStorage(prefObj) {
      throw new Error("Not implemented: _readFromStorage");
    }
  
    async reset() {
      await this._initializedPromise;
      this.prefs = Object.assign(Object.create(null), this.defaults);
      return this._writeToStorage(this.defaults);
    }
  
    async set(name, value) {
      await this._initializedPromise;
      const defaultValue = this.defaults[name];
  
      if (defaultValue === undefined) {
        throw new Error(`Set preference: "${name}" is undefined.`);
      } else if (value === undefined) {
        throw new Error("Set preference: no value is specified.");
      }
  
      const valueType = typeof value;
      const defaultType = typeof defaultValue;
  
      if (valueType !== defaultType) {
        if (valueType === "number" && defaultType === "string") {
          value = value.toString();
        } else {
          throw new Error(`Set preference: "${value}" is a ${valueType}, ` + `expected a ${defaultType}.`);
        }
      } else {
        if (valueType === "number" && !Number.isInteger(value)) {
          throw new Error(`Set preference: "${value}" must be an integer.`);
        }
      }
  
      this.prefs[name] = value;
      return this._writeToStorage(this.prefs);
    }
  
    async get(name) {
      await this._initializedPromise;
      const defaultValue = this.defaults[name];
  
      if (defaultValue === undefined) {
        throw new Error(`Get preference: "${name}" is undefined.`);
      } else {
        const prefValue = this.prefs[name];
  
        if (prefValue !== undefined) {
          return prefValue;
        }
      }
  
      return defaultValue;
    }
  
    async getAll() {
      await this._initializedPromise;
      return Object.assign(Object.create(null), this.defaults, this.prefs);
    }
  
  }
  
  exports.BasePreferences = BasePreferences;
  
  /***/ }),
  /* 35 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.DownloadManager = void 0;
  
  var _pdfjsLib = __webpack_require__(5);
  
  var _viewer_compatibility = __webpack_require__(4);
  
  ;
  const DISABLE_CREATE_OBJECT_URL = _viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL || false;
  
  function download(blobUrl, filename) {
    const a = document.createElement("a");
  
    if (!a.click) {
      throw new Error('DownloadManager: "a.click()" is not supported.');
    }
  
    a.href = blobUrl;
    a.target = "_parent";
  
    if ("download" in a) {
      a.download = filename;
    }
  
    (document.body || document.documentElement).appendChild(a);
    a.click();
    a.remove();
  }
  
  class DownloadManager {
    constructor({
      disableCreateObjectURL = DISABLE_CREATE_OBJECT_URL
    }) {
      this.disableCreateObjectURL = disableCreateObjectURL;
    }
  
    downloadUrl(url, filename) {
      if (!(0, _pdfjsLib.createValidAbsoluteUrl)(url, "http://example.com")) {
        return;
      }
  
      download(url + "#pdfjs.action=download", filename);
    }
  
    downloadData(data, filename, contentType) {
      if (navigator.msSaveBlob) {
        navigator.msSaveBlob(new Blob([data], {
          type: contentType
        }), filename);
        return;
      }
  
      const blobUrl = (0, _pdfjsLib.createObjectURL)(data, contentType, this.disableCreateObjectURL);
      download(blobUrl, filename);
    }
  
    download(blob, url, filename) {
      if (navigator.msSaveBlob) {
        if (!navigator.msSaveBlob(blob, filename)) {
          this.downloadUrl(url, filename);
        }
  
        return;
      }
  
      if (this.disableCreateObjectURL) {
        this.downloadUrl(url, filename);
        return;
      }
  
      const blobUrl = URL.createObjectURL(blob);
      download(blobUrl, filename);
    }
  
  }
  
  exports.DownloadManager = DownloadManager;
  
  /***/ }),
  /* 36 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.GenericL10n = void 0;
  
  __webpack_require__(37);
  
  const webL10n = document.webL10n;
  
  class GenericL10n {
    constructor(lang) {
      this._lang = lang;
      this._ready = new Promise((resolve, reject) => {
        webL10n.setLanguage(lang, () => {
          resolve(webL10n);
        });
      });
    }
  
    async getLanguage() {
      const l10n = await this._ready;
      return l10n.getLanguage();
    }
  
    async getDirection() {
      const l10n = await this._ready;
      return l10n.getDirection();
    }
  
    async get(property, args, fallback) {
      const l10n = await this._ready;
      return l10n.get(property, args, fallback);
    }
  
    async translate(element) {
      const l10n = await this._ready;
      return l10n.translate(element);
    }
  
  }
  
  exports.GenericL10n = GenericL10n;
  
  /***/ }),
  /* 37 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  document.webL10n = function (window, document, undefined) {
    var gL10nData = {};
    var gTextData = '';
    var gTextProp = 'textContent';
    var gLanguage = '';
    var gMacros = {};
    var gReadyState = 'loading';
    var gAsyncResourceLoading = true;
  
    function getL10nResourceLinks() {
      return document.querySelectorAll('link[type="application/l10n"]');
    }
  
    function getL10nDictionary() {
      var script = document.querySelector('script[type="application/l10n"]');
      return script ? JSON.parse(script.innerHTML) : null;
    }
  
    function getTranslatableChildren(element) {
      return element ? element.querySelectorAll('*[data-l10n-id]') : [];
    }
  
    function getL10nAttributes(element) {
      if (!element) return {};
      var l10nId = element.getAttribute('data-l10n-id');
      var l10nArgs = element.getAttribute('data-l10n-args');
      var args = {};
  
      if (l10nArgs) {
        try {
          args = JSON.parse(l10nArgs);
        } catch (e) {
          console.warn('could not parse arguments for #' + l10nId);
        }
      }
  
      return {
        id: l10nId,
        args: args
      };
    }
  
    function xhrLoadText(url, onSuccess, onFailure) {
      onSuccess = onSuccess || function _onSuccess(data) {};
  
      onFailure = onFailure || function _onFailure() {};
  
      var xhr = new XMLHttpRequest();
      xhr.open('GET', url, gAsyncResourceLoading);
  
      if (xhr.overrideMimeType) {
        xhr.overrideMimeType('text/plain; charset=utf-8');
      }
  
      xhr.onreadystatechange = function () {
        if (xhr.readyState == 4) {
          if (xhr.status == 200 || xhr.status === 0) {
            onSuccess(xhr.responseText);
          } else {
            onFailure();
          }
        }
      };
  
      xhr.onerror = onFailure;
      xhr.ontimeout = onFailure;
  
      try {
        xhr.send(null);
      } catch (e) {
        onFailure();
      }
    }
  
    function parseResource(href, lang, successCallback, failureCallback) {
      var baseURL = href.replace(/[^\/]*$/, '') || './';
  
      function evalString(text) {
        if (text.lastIndexOf('\\') < 0) return text;
        return text.replace(/\\\\/g, '\\').replace(/\\n/g, '\n').replace(/\\r/g, '\r').replace(/\\t/g, '\t').replace(/\\b/g, '\b').replace(/\\f/g, '\f').replace(/\\{/g, '{').replace(/\\}/g, '}').replace(/\\"/g, '"').replace(/\\'/g, "'");
      }
  
      function parseProperties(text, parsedPropertiesCallback) {
        var dictionary = {};
        var reBlank = /^\s*|\s*$/;
        var reComment = /^\s*#|^\s*$/;
        var reSection = /^\s*\[(.*)\]\s*$/;
        var reImport = /^\s*@import\s+url\((.*)\)\s*$/i;
        var reSplit = /^([^=\s]*)\s*=\s*(.+)$/;
  
        function parseRawLines(rawText, extendedSyntax, parsedRawLinesCallback) {
          var entries = rawText.replace(reBlank, '').split(/[\r\n]+/);
          var currentLang = '*';
          var genericLang = lang.split('-', 1)[0];
          var skipLang = false;
          var match = '';
  
          function nextEntry() {
            while (true) {
              if (!entries.length) {
                parsedRawLinesCallback();
                return;
              }
  
              var line = entries.shift();
              if (reComment.test(line)) continue;
  
              if (extendedSyntax) {
                match = reSection.exec(line);
  
                if (match) {
                  currentLang = match[1].toLowerCase();
                  skipLang = currentLang !== '*' && currentLang !== lang && currentLang !== genericLang;
                  continue;
                } else if (skipLang) {
                  continue;
                }
  
                match = reImport.exec(line);
  
                if (match) {
                  loadImport(baseURL + match[1], nextEntry);
                  return;
                }
              }
  
              var tmp = line.match(reSplit);
  
              if (tmp && tmp.length == 3) {
                dictionary[tmp[1]] = evalString(tmp[2]);
              }
            }
          }
  
          nextEntry();
        }
  
        function loadImport(url, callback) {
          xhrLoadText(url, function (content) {
            parseRawLines(content, false, callback);
          }, function () {
            console.warn(url + ' not found.');
            callback();
          });
        }
  
        parseRawLines(text, true, function () {
          parsedPropertiesCallback(dictionary);
        });
      }
  
      xhrLoadText(href, function (response) {
        gTextData += response;
        parseProperties(response, function (data) {
          for (var key in data) {
            var id,
                prop,
                index = key.lastIndexOf('.');
  
            if (index > 0) {
              id = key.substring(0, index);
              prop = key.substring(index + 1);
            } else {
              id = key;
              prop = gTextProp;
            }
  
            if (!gL10nData[id]) {
              gL10nData[id] = {};
            }
  
            gL10nData[id][prop] = data[key];
          }
  
          if (successCallback) {
            successCallback();
          }
        });
      }, failureCallback);
    }
  
    function loadLocale(lang, callback) {
      if (lang) {
        lang = lang.toLowerCase();
      }
  
      callback = callback || function _callback() {};
  
      clear();
      gLanguage = lang;
      var langLinks = getL10nResourceLinks();
      var langCount = langLinks.length;
  
      if (langCount === 0) {
        var dict = getL10nDictionary();
  
        if (dict && dict.locales && dict.default_locale) {
          console.log('using the embedded JSON directory, early way out');
          gL10nData = dict.locales[lang];
  
          if (!gL10nData) {
            var defaultLocale = dict.default_locale.toLowerCase();
  
            for (var anyCaseLang in dict.locales) {
              anyCaseLang = anyCaseLang.toLowerCase();
  
              if (anyCaseLang === lang) {
                gL10nData = dict.locales[lang];
                break;
              } else if (anyCaseLang === defaultLocale) {
                gL10nData = dict.locales[defaultLocale];
              }
            }
          }
  
          callback();
        } else {
          console.log('no resource to load, early way out');
        }
  
        gReadyState = 'complete';
        return;
      }
  
      var onResourceLoaded = null;
      var gResourceCount = 0;
  
      onResourceLoaded = function () {
        gResourceCount++;
  
        if (gResourceCount >= langCount) {
          callback();
          gReadyState = 'complete';
        }
      };
  
      function L10nResourceLink(link) {
        var href = link.href;
  
        this.load = function (lang, callback) {
          parseResource(href, lang, callback, function () {
            console.warn(href + ' not found.');
            console.warn('"' + lang + '" resource not found');
            gLanguage = '';
            callback();
          });
        };
      }
  
      for (var i = 0; i < langCount; i++) {
        var resource = new L10nResourceLink(langLinks[i]);
        resource.load(lang, onResourceLoaded);
      }
    }
  
    function clear() {
      gL10nData = {};
      gTextData = '';
      gLanguage = '';
    }
  
    function getPluralRules(lang) {
      var locales2rules = {
        'af': 3,
        'ak': 4,
        'am': 4,
        'ar': 1,
        'asa': 3,
        'az': 0,
        'be': 11,
        'bem': 3,
        'bez': 3,
        'bg': 3,
        'bh': 4,
        'bm': 0,
        'bn': 3,
        'bo': 0,
        'br': 20,
        'brx': 3,
        'bs': 11,
        'ca': 3,
        'cgg': 3,
        'chr': 3,
        'cs': 12,
        'cy': 17,
        'da': 3,
        'de': 3,
        'dv': 3,
        'dz': 0,
        'ee': 3,
        'el': 3,
        'en': 3,
        'eo': 3,
        'es': 3,
        'et': 3,
        'eu': 3,
        'fa': 0,
        'ff': 5,
        'fi': 3,
        'fil': 4,
        'fo': 3,
        'fr': 5,
        'fur': 3,
        'fy': 3,
        'ga': 8,
        'gd': 24,
        'gl': 3,
        'gsw': 3,
        'gu': 3,
        'guw': 4,
        'gv': 23,
        'ha': 3,
        'haw': 3,
        'he': 2,
        'hi': 4,
        'hr': 11,
        'hu': 0,
        'id': 0,
        'ig': 0,
        'ii': 0,
        'is': 3,
        'it': 3,
        'iu': 7,
        'ja': 0,
        'jmc': 3,
        'jv': 0,
        'ka': 0,
        'kab': 5,
        'kaj': 3,
        'kcg': 3,
        'kde': 0,
        'kea': 0,
        'kk': 3,
        'kl': 3,
        'km': 0,
        'kn': 0,
        'ko': 0,
        'ksb': 3,
        'ksh': 21,
        'ku': 3,
        'kw': 7,
        'lag': 18,
        'lb': 3,
        'lg': 3,
        'ln': 4,
        'lo': 0,
        'lt': 10,
        'lv': 6,
        'mas': 3,
        'mg': 4,
        'mk': 16,
        'ml': 3,
        'mn': 3,
        'mo': 9,
        'mr': 3,
        'ms': 0,
        'mt': 15,
        'my': 0,
        'nah': 3,
        'naq': 7,
        'nb': 3,
        'nd': 3,
        'ne': 3,
        'nl': 3,
        'nn': 3,
        'no': 3,
        'nr': 3,
        'nso': 4,
        'ny': 3,
        'nyn': 3,
        'om': 3,
        'or': 3,
        'pa': 3,
        'pap': 3,
        'pl': 13,
        'ps': 3,
        'pt': 3,
        'rm': 3,
        'ro': 9,
        'rof': 3,
        'ru': 11,
        'rwk': 3,
        'sah': 0,
        'saq': 3,
        'se': 7,
        'seh': 3,
        'ses': 0,
        'sg': 0,
        'sh': 11,
        'shi': 19,
        'sk': 12,
        'sl': 14,
        'sma': 7,
        'smi': 7,
        'smj': 7,
        'smn': 7,
        'sms': 7,
        'sn': 3,
        'so': 3,
        'sq': 3,
        'sr': 11,
        'ss': 3,
        'ssy': 3,
        'st': 3,
        'sv': 3,
        'sw': 3,
        'syr': 3,
        'ta': 3,
        'te': 3,
        'teo': 3,
        'th': 0,
        'ti': 4,
        'tig': 3,
        'tk': 3,
        'tl': 4,
        'tn': 3,
        'to': 0,
        'tr': 0,
        'ts': 3,
        'tzm': 22,
        'uk': 11,
        'ur': 3,
        've': 3,
        'vi': 0,
        'vun': 3,
        'wa': 4,
        'wae': 3,
        'wo': 0,
        'xh': 3,
        'xog': 3,
        'yo': 0,
        'zh': 0,
        'zu': 3
      };
  
      function isIn(n, list) {
        return list.indexOf(n) !== -1;
      }
  
      function isBetween(n, start, end) {
        return start <= n && n <= end;
      }
  
      var pluralRules = {
        '0': function (n) {
          return 'other';
        },
        '1': function (n) {
          if (isBetween(n % 100, 3, 10)) return 'few';
          if (n === 0) return 'zero';
          if (isBetween(n % 100, 11, 99)) return 'many';
          if (n == 2) return 'two';
          if (n == 1) return 'one';
          return 'other';
        },
        '2': function (n) {
          if (n !== 0 && n % 10 === 0) return 'many';
          if (n == 2) return 'two';
          if (n == 1) return 'one';
          return 'other';
        },
        '3': function (n) {
          if (n == 1) return 'one';
          return 'other';
        },
        '4': function (n) {
          if (isBetween(n, 0, 1)) return 'one';
          return 'other';
        },
        '5': function (n) {
          if (isBetween(n, 0, 2) && n != 2) return 'one';
          return 'other';
        },
        '6': function (n) {
          if (n === 0) return 'zero';
          if (n % 10 == 1 && n % 100 != 11) return 'one';
          return 'other';
        },
        '7': function (n) {
          if (n == 2) return 'two';
          if (n == 1) return 'one';
          return 'other';
        },
        '8': function (n) {
          if (isBetween(n, 3, 6)) return 'few';
          if (isBetween(n, 7, 10)) return 'many';
          if (n == 2) return 'two';
          if (n == 1) return 'one';
          return 'other';
        },
        '9': function (n) {
          if (n === 0 || n != 1 && isBetween(n % 100, 1, 19)) return 'few';
          if (n == 1) return 'one';
          return 'other';
        },
        '10': function (n) {
          if (isBetween(n % 10, 2, 9) && !isBetween(n % 100, 11, 19)) return 'few';
          if (n % 10 == 1 && !isBetween(n % 100, 11, 19)) return 'one';
          return 'other';
        },
        '11': function (n) {
          if (isBetween(n % 10, 2, 4) && !isBetween(n % 100, 12, 14)) return 'few';
          if (n % 10 === 0 || isBetween(n % 10, 5, 9) || isBetween(n % 100, 11, 14)) return 'many';
          if (n % 10 == 1 && n % 100 != 11) return 'one';
          return 'other';
        },
        '12': function (n) {
          if (isBetween(n, 2, 4)) return 'few';
          if (n == 1) return 'one';
          return 'other';
        },
        '13': function (n) {
          if (isBetween(n % 10, 2, 4) && !isBetween(n % 100, 12, 14)) return 'few';
          if (n != 1 && isBetween(n % 10, 0, 1) || isBetween(n % 10, 5, 9) || isBetween(n % 100, 12, 14)) return 'many';
          if (n == 1) return 'one';
          return 'other';
        },
        '14': function (n) {
          if (isBetween(n % 100, 3, 4)) return 'few';
          if (n % 100 == 2) return 'two';
          if (n % 100 == 1) return 'one';
          return 'other';
        },
        '15': function (n) {
          if (n === 0 || isBetween(n % 100, 2, 10)) return 'few';
          if (isBetween(n % 100, 11, 19)) return 'many';
          if (n == 1) return 'one';
          return 'other';
        },
        '16': function (n) {
          if (n % 10 == 1 && n != 11) return 'one';
          return 'other';
        },
        '17': function (n) {
          if (n == 3) return 'few';
          if (n === 0) return 'zero';
          if (n == 6) return 'many';
          if (n == 2) return 'two';
          if (n == 1) return 'one';
          return 'other';
        },
        '18': function (n) {
          if (n === 0) return 'zero';
          if (isBetween(n, 0, 2) && n !== 0 && n != 2) return 'one';
          return 'other';
        },
        '19': function (n) {
          if (isBetween(n, 2, 10)) return 'few';
          if (isBetween(n, 0, 1)) return 'one';
          return 'other';
        },
        '20': function (n) {
          if ((isBetween(n % 10, 3, 4) || n % 10 == 9) && !(isBetween(n % 100, 10, 19) || isBetween(n % 100, 70, 79) || isBetween(n % 100, 90, 99))) return 'few';
          if (n % 1000000 === 0 && n !== 0) return 'many';
          if (n % 10 == 2 && !isIn(n % 100, [12, 72, 92])) return 'two';
          if (n % 10 == 1 && !isIn(n % 100, [11, 71, 91])) return 'one';
          return 'other';
        },
        '21': function (n) {
          if (n === 0) return 'zero';
          if (n == 1) return 'one';
          return 'other';
        },
        '22': function (n) {
          if (isBetween(n, 0, 1) || isBetween(n, 11, 99)) return 'one';
          return 'other';
        },
        '23': function (n) {
          if (isBetween(n % 10, 1, 2) || n % 20 === 0) return 'one';
          return 'other';
        },
        '24': function (n) {
          if (isBetween(n, 3, 10) || isBetween(n, 13, 19)) return 'few';
          if (isIn(n, [2, 12])) return 'two';
          if (isIn(n, [1, 11])) return 'one';
          return 'other';
        }
      };
      var index = locales2rules[lang.replace(/-.*$/, '')];
  
      if (!(index in pluralRules)) {
        console.warn('plural form unknown for [' + lang + ']');
        return function () {
          return 'other';
        };
      }
  
      return pluralRules[index];
    }
  
    gMacros.plural = function (str, param, key, prop) {
      var n = parseFloat(param);
      if (isNaN(n)) return str;
      if (prop != gTextProp) return str;
  
      if (!gMacros._pluralRules) {
        gMacros._pluralRules = getPluralRules(gLanguage);
      }
  
      var index = '[' + gMacros._pluralRules(n) + ']';
  
      if (n === 0 && key + '[zero]' in gL10nData) {
        str = gL10nData[key + '[zero]'][prop];
      } else if (n == 1 && key + '[one]' in gL10nData) {
        str = gL10nData[key + '[one]'][prop];
      } else if (n == 2 && key + '[two]' in gL10nData) {
        str = gL10nData[key + '[two]'][prop];
      } else if (key + index in gL10nData) {
        str = gL10nData[key + index][prop];
      } else if (key + '[other]' in gL10nData) {
        str = gL10nData[key + '[other]'][prop];
      }
  
      return str;
    };
  
    function getL10nData(key, args, fallback) {
      var data = gL10nData[key];
  
      if (!data) {
        console.warn('#' + key + ' is undefined.');
  
        if (!fallback) {
          return null;
        }
  
        data = fallback;
      }
  
      var rv = {};
  
      for (var prop in data) {
        var str = data[prop];
        str = substIndexes(str, args, key, prop);
        str = substArguments(str, args, key);
        rv[prop] = str;
      }
  
      return rv;
    }
  
    function substIndexes(str, args, key, prop) {
      var reIndex = /\{\[\s*([a-zA-Z]+)\(([a-zA-Z]+)\)\s*\]\}/;
      var reMatch = reIndex.exec(str);
      if (!reMatch || !reMatch.length) return str;
      var macroName = reMatch[1];
      var paramName = reMatch[2];
      var param;
  
      if (args && paramName in args) {
        param = args[paramName];
      } else if (paramName in gL10nData) {
        param = gL10nData[paramName];
      }
  
      if (macroName in gMacros) {
        var macro = gMacros[macroName];
        str = macro(str, param, key, prop);
      }
  
      return str;
    }
  
    function substArguments(str, args, key) {
      var reArgs = /\{\{\s*(.+?)\s*\}\}/g;
      return str.replace(reArgs, function (matched_text, arg) {
        if (args && arg in args) {
          return args[arg];
        }
  
        if (arg in gL10nData) {
          return gL10nData[arg];
        }
  
        console.log('argument {{' + arg + '}} for #' + key + ' is undefined.');
        return matched_text;
      });
    }
  
    function translateElement(element) {
      var l10n = getL10nAttributes(element);
      if (!l10n.id) return;
      var data = getL10nData(l10n.id, l10n.args);
  
      if (!data) {
        console.warn('#' + l10n.id + ' is undefined.');
        return;
      }
  
      if (data[gTextProp]) {
        if (getChildElementCount(element) === 0) {
          element[gTextProp] = data[gTextProp];
        } else {
          var children = element.childNodes;
          var found = false;
  
          for (var i = 0, l = children.length; i < l; i++) {
            if (children[i].nodeType === 3 && /\S/.test(children[i].nodeValue)) {
              if (found) {
                children[i].nodeValue = '';
              } else {
                children[i].nodeValue = data[gTextProp];
                found = true;
              }
            }
          }
  
          if (!found) {
            var textNode = document.createTextNode(data[gTextProp]);
            element.insertBefore(textNode, element.firstChild);
          }
        }
  
        delete data[gTextProp];
      }
  
      for (var k in data) {
        element[k] = data[k];
      }
    }
  
    function getChildElementCount(element) {
      if (element.children) {
        return element.children.length;
      }
  
      if (typeof element.childElementCount !== 'undefined') {
        return element.childElementCount;
      }
  
      var count = 0;
  
      for (var i = 0; i < element.childNodes.length; i++) {
        count += element.nodeType === 1 ? 1 : 0;
      }
  
      return count;
    }
  
    function translateFragment(element) {
      element = element || document.documentElement;
      var children = getTranslatableChildren(element);
      var elementCount = children.length;
  
      for (var i = 0; i < elementCount; i++) {
        translateElement(children[i]);
      }
  
      translateElement(element);
    }
  
    return {
      get: function (key, args, fallbackString) {
        var index = key.lastIndexOf('.');
        var prop = gTextProp;
  
        if (index > 0) {
          prop = key.substring(index + 1);
          key = key.substring(0, index);
        }
  
        var fallback;
  
        if (fallbackString) {
          fallback = {};
          fallback[prop] = fallbackString;
        }
  
        var data = getL10nData(key, args, fallback);
  
        if (data && prop in data) {
          return data[prop];
        }
  
        return '{{' + key + '}}';
      },
      getData: function () {
        return gL10nData;
      },
      getText: function () {
        return gTextData;
      },
      getLanguage: function () {
        return gLanguage;
      },
      setLanguage: function (lang, callback) {
        loadLocale(lang, function () {
          if (callback) callback();
        });
      },
      getDirection: function () {
        var rtlList = ['ar', 'he', 'fa', 'ps', 'ur'];
        var shortCode = gLanguage.split('-', 1)[0];
        return rtlList.indexOf(shortCode) >= 0 ? 'rtl' : 'ltr';
      },
      translate: translateFragment,
      getReadyState: function () {
        return gReadyState;
      },
      ready: function (callback) {
        if (!callback) {
          return;
        } else if (gReadyState == 'complete' || gReadyState == 'interactive') {
          window.setTimeout(function () {
            callback();
          });
        } else if (document.addEventListener) {
          document.addEventListener('localized', function once() {
            document.removeEventListener('localized', once);
            callback();
          });
        }
      }
    };
  }(window, document);
  
  /***/ }),
  /* 38 */
  /***/ (function(module, exports, __webpack_require__) {
  
  "use strict";
  
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.PDFPrintService = PDFPrintService;
  
  var _ui_utils = __webpack_require__(2);
  
  var _app = __webpack_require__(1);
  
  var _app_options = __webpack_require__(3);
  
  let activeService = null;
  let overlayManager = null;
  
  function renderPage(activeServiceOnEntry, pdfDocument, pageNumber, size) {
    const scratchCanvas = activeService.scratchCanvas;
    const PRINT_RESOLUTION = _app_options.AppOptions.get("printResolution") || 150;
    const PRINT_UNITS = PRINT_RESOLUTION / 72.0;
    scratchCanvas.width = Math.floor(size.width * PRINT_UNITS);
    scratchCanvas.height = Math.floor(size.height * PRINT_UNITS);
    const width = Math.floor(size.width * _ui_utils.CSS_UNITS) + "px";
    const height = Math.floor(size.height * _ui_utils.CSS_UNITS) + "px";
    const ctx = scratchCanvas.getContext("2d");
    ctx.save();
    ctx.fillStyle = "rgb(255, 255, 255)";
    ctx.fillRect(0, 0, scratchCanvas.width, scratchCanvas.height);
    ctx.restore();
    return pdfDocument.getPage(pageNumber).then(function (pdfPage) {
      const renderContext = {
        canvasContext: ctx,
        transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0],
        viewport: pdfPage.getViewport({
          scale: 1,
          rotation: size.rotation
        }),
        intent: "print"
      };
      return pdfPage.render(renderContext).promise;
    }).then(function () {
      return {
        width,
        height
      };
    });
  }
  
  function PDFPrintService(pdfDocument, pagesOverview, printContainer, l10n) {
    this.pdfDocument = pdfDocument;
    this.pagesOverview = pagesOverview;
    this.printContainer = printContainer;
    this.l10n = l10n || _ui_utils.NullL10n;
    this.disableCreateObjectURL = _app_options.AppOptions.get("disableCreateObjectURL");
    this.currentPage = -1;
    this.scratchCanvas = document.createElement("canvas");
  }
  
  PDFPrintService.prototype = {
    layout() {
      this.throwIfInactive();
      const body = document.querySelector("body");
      body.setAttribute("data-pdfjsprinting", true);
      const hasEqualPageSizes = this.pagesOverview.every(function (size) {
        return size.width === this.pagesOverview[0].width && size.height === this.pagesOverview[0].height;
      }, this);
  
      if (!hasEqualPageSizes) {
        console.warn("Not all pages have the same size. The printed " + "result may be incorrect!");
      }
  
      this.pageStyleSheet = document.createElement("style");
      const pageSize = this.pagesOverview[0];
      this.pageStyleSheet.textContent = "@supports ((size:A4) and (size:1pt 1pt)) {" + "@page { size: " + pageSize.width + "pt " + pageSize.height + "pt;}" + "}";
      body.appendChild(this.pageStyleSheet);
    },
  
    destroy() {
      if (activeService !== this) {
        return;
      }
  
      this.printContainer.textContent = "";
      const body = document.querySelector("body");
      body.removeAttribute("data-pdfjsprinting");
  
      if (this.pageStyleSheet) {
        this.pageStyleSheet.remove();
        this.pageStyleSheet = null;
      }
  
      this.scratchCanvas.width = this.scratchCanvas.height = 0;
      this.scratchCanvas = null;
      activeService = null;
      ensureOverlay().then(function () {
        if (overlayManager.active !== "printServiceOverlay") {
          return;
        }
  
        overlayManager.close("printServiceOverlay");
      });
    },
  
    renderPages() {
      const pageCount = this.pagesOverview.length;
  
      const renderNextPage = (resolve, reject) => {
        this.throwIfInactive();
  
        if (++this.currentPage >= pageCount) {
          renderProgress(pageCount, pageCount, this.l10n);
          resolve();
          return;
        }
  
        const index = this.currentPage;
        renderProgress(index, pageCount, this.l10n);
        renderPage(this, this.pdfDocument, index + 1, this.pagesOverview[index]).then(this.useRenderedPage.bind(this)).then(function () {
          renderNextPage(resolve, reject);
        }, reject);
      };
  
      return new Promise(renderNextPage);
    },
  
    useRenderedPage(printItem) {
      this.throwIfInactive();
      const img = document.createElement("img");
      img.style.width = printItem.width;
      img.style.height = printItem.height;
      const scratchCanvas = this.scratchCanvas;
  
      if ("toBlob" in scratchCanvas && !this.disableCreateObjectURL) {
        scratchCanvas.toBlob(function (blob) {
          img.src = URL.createObjectURL(blob);
        });
      } else {
        img.src = scratchCanvas.toDataURL();
      }
  
      const wrapper = document.createElement("div");
      wrapper.appendChild(img);
      this.printContainer.appendChild(wrapper);
      return new Promise(function (resolve, reject) {
        img.onload = resolve;
        img.onerror = reject;
      });
    },
  
    performPrint() {
      this.throwIfInactive();
      return new Promise(resolve => {
        setTimeout(() => {
          if (!this.active) {
            resolve();
            return;
          }
  
          print.call(window);
          setTimeout(resolve, 20);
        }, 0);
      });
    },
  
    get active() {
      return this === activeService;
    },
  
    throwIfInactive() {
      if (!this.active) {
        throw new Error("This print request was cancelled or completed.");
      }
    }
  
  };
  const print = window.print;
  
  window.print = function () {
    if (activeService) {
      console.warn("Ignored window.print() because of a pending print job.");
      return;
    }
  
    ensureOverlay().then(function () {
      if (activeService) {
        overlayManager.open("printServiceOverlay");
      }
    });
  
    try {
      dispatchEvent("beforeprint");
    } finally {
      if (!activeService) {
        console.error("Expected print service to be initialized.");
        ensureOverlay().then(function () {
          if (overlayManager.active === "printServiceOverlay") {
            overlayManager.close("printServiceOverlay");
          }
        });
        return;
      }
  
      const activeServiceOnEntry = activeService;
      activeService.renderPages().then(function () {
        return activeServiceOnEntry.performPrint();
      }).catch(function () {}).then(function () {
        if (activeServiceOnEntry.active) {
          abort();
        }
      });
    }
  };
  
  function dispatchEvent(eventType) {
    const event = document.createEvent("CustomEvent");
    event.initCustomEvent(eventType, false, false, "custom");
    window.dispatchEvent(event);
  }
  
  function abort() {
    if (activeService) {
      activeService.destroy();
      dispatchEvent("afterprint");
    }
  }
  
  function renderProgress(index, total, l10n) {
    const progressContainer = document.getElementById("printServiceOverlay");
    const progress = Math.round(100 * index / total);
    const progressBar = progressContainer.querySelector("progress");
    const progressPerc = progressContainer.querySelector(".relative-progress");
    progressBar.value = progress;
    l10n.get("print_progress_percent", {
      progress
    }, progress + "%").then(msg => {
      progressPerc.textContent = msg;
    });
  }
  
  window.addEventListener("keydown", function (event) {
    if (event.keyCode === 80 && (event.ctrlKey || event.metaKey) && !event.altKey && (!event.shiftKey || window.chrome || window.opera)) {
      window.print();
      event.preventDefault();
  
      if (event.stopImmediatePropagation) {
        event.stopImmediatePropagation();
      } else {
        event.stopPropagation();
      }
    }
  }, true);
  
  if ("onbeforeprint" in window) {
    const stopPropagationIfNeeded = function (event) {
      if (event.detail !== "custom" && event.stopImmediatePropagation) {
        event.stopImmediatePropagation();
      }
    };
  
    window.addEventListener("beforeprint", stopPropagationIfNeeded);
    window.addEventListener("afterprint", stopPropagationIfNeeded);
  }
  
  let overlayPromise;
  
  function ensureOverlay() {
    if (!overlayPromise) {
      overlayManager = _app.PDFViewerApplication.overlayManager;
  
      if (!overlayManager) {
        throw new Error("The overlay manager has not yet been initialized.");
      }
  
      overlayPromise = overlayManager.register("printServiceOverlay", document.getElementById("printServiceOverlay"), abort, true);
      document.getElementById("printCancel").onclick = abort;
    }
  
    return overlayPromise;
  }
  
  _app.PDFPrintServiceFactory.instance = {
    supportsPrinting: true,
  
    createPrintService(pdfDocument, pagesOverview, printContainer, l10n) {
      if (activeService) {
        throw new Error("The print service is created and active.");
      }
  
      activeService = new PDFPrintService(pdfDocument, pagesOverview, printContainer, l10n);
      return activeService;
    }
  
  };
  
  /***/ })
  /******/ ]);
  //# sourceMappingURL=viewer.js.map