xinyongguanlishi/hybrid/html/web/viewer.js

/**
 * @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
 */

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/* 0 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


;
var pdfjsWebApp, pdfjsWebAppOptions;
{
  pdfjsWebApp = __webpack_require__(1);
  pdfjsWebAppOptions = __webpack_require__(6);
}
;
{
  __webpack_require__(38);
}
;
{
  __webpack_require__(43);
}

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"),
      layersButton: document.getElementById("viewLayers"),
      thumbnailView: document.getElementById("thumbnailView"),
      outlineView: document.getElementById("outlineView"),
      attachmentsView: document.getElementById("attachmentsView"),
      layersView: document.getElementById("layersView")
    },
    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() {
  var config = getViewerConfiguration();
  window.PDFViewerApplication = pdfjsWebApp.PDFViewerApplication;
  window.PDFViewerApplicationOptions = pdfjsWebAppOptions.AppOptions;
  var event = document.createEvent("CustomEvent");
  event.initCustomEvent("webviewerloaded", true, true, {
    source: window
  });

  try {
    parent.document.dispatchEvent(event);
  } catch (ex) {
    console.error("webviewerloaded: ".concat(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 _regenerator = _interopRequireDefault(__webpack_require__(2));

var _ui_utils = __webpack_require__(5);

var _app_options = __webpack_require__(6);

var _pdfjsLib = __webpack_require__(8);

var _pdf_cursor_tools = __webpack_require__(9);

var _pdf_rendering_queue = __webpack_require__(11);

var _pdf_sidebar = __webpack_require__(12);

var _overlay_manager = __webpack_require__(13);

var _password_prompt = __webpack_require__(14);

var _pdf_attachment_viewer = __webpack_require__(15);

var _pdf_document_properties = __webpack_require__(17);

var _pdf_find_bar = __webpack_require__(18);

var _pdf_find_controller = __webpack_require__(19);

var _pdf_history = __webpack_require__(21);

var _pdf_layer_viewer = __webpack_require__(22);

var _pdf_link_service = __webpack_require__(23);

var _pdf_outline_viewer = __webpack_require__(24);

var _pdf_presentation_mode = __webpack_require__(25);

var _pdf_sidebar_resizer = __webpack_require__(26);

var _pdf_thumbnail_viewer = __webpack_require__(27);

var _pdf_viewer = __webpack_require__(29);

var _secondary_toolbar = __webpack_require__(34);

var _toolbar = __webpack_require__(36);

var _viewer_compatibility = __webpack_require__(7);

var _view_history = __webpack_require__(37);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e2) { throw _e2; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e3) { didErr = true; err = _e3; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_SCALE_DELTA = 1.1;
var DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
var FORCE_PAGES_LOADED_TIMEOUT = 10000;
var WHEEL_ZOOM_DISABLED_TIMEOUT = 1000;
var ENABLE_PERMISSIONS_CLASS = "enablePermissions";
var ViewOnLoad = {
  UNKNOWN: -1,
  PREVIOUS: 0,
  INITIAL: 1
};
var 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"];
var 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"];

var DefaultExternalServices = /*#__PURE__*/function () {
  function DefaultExternalServices() {
    _classCallCheck(this, DefaultExternalServices);

    throw new Error("Cannot initialize DefaultExternalServices.");
  }

  _createClass(DefaultExternalServices, null, [{
    key: "updateFindControlState",
    value: function updateFindControlState(data) {}
  }, {
    key: "updateFindMatchesCount",
    value: function updateFindMatchesCount(data) {}
  }, {
    key: "initPassiveLoading",
    value: function initPassiveLoading(callbacks) {}
  }, {
    key: "fallback",
    value: function fallback(data, callback) {}
  }, {
    key: "reportTelemetry",
    value: function reportTelemetry(data) {}
  }, {
    key: "createDownloadManager",
    value: function createDownloadManager(options) {
      throw new Error("Not implemented: createDownloadManager");
    }
  }, {
    key: "createPreferences",
    value: function createPreferences() {
      throw new Error("Not implemented: createPreferences");
    }
  }, {
    key: "createL10n",
    value: function createL10n(options) {
      throw new Error("Not implemented: createL10n");
    }
  }, {
    key: "supportsIntegratedFind",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "supportsIntegratedFind", false);
    }
  }, {
    key: "supportsDocumentFonts",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "supportsDocumentFonts", true);
    }
  }, {
    key: "supportedMouseWheelZoomModifierKeys",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "supportedMouseWheelZoomModifierKeys", {
        ctrlKey: true,
        metaKey: true
      });
    }
  }, {
    key: "isInAutomation",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "isInAutomation", false);
    }
  }]);

  return DefaultExternalServices;
}();

exports.DefaultExternalServices = DefaultExternalServices;
var 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,
  pdfLayerViewer: 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,
  triggerDelayedFallback: null,
  _saveInProgress: false,
  _wheelUnusedTicks: 0,
  initialize: function initialize(appConfig) {
    var _this = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
      var appContainer;
      return _regenerator["default"].wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              _this.preferences = _this.externalServices.createPreferences();
              _this.appConfig = appConfig;
              _context.next = 4;
              return _this._readPreferences();

            case 4:
              _context.next = 6;
              return _this._parseHashParameters();

            case 6:
              _context.next = 8;
              return _this._initializeL10n();

            case 8:
              if (_this.isViewerEmbedded && _app_options.AppOptions.get("externalLinkTarget") === _pdfjsLib.LinkTarget.NONE) {
                _app_options.AppOptions.set("externalLinkTarget", _pdfjsLib.LinkTarget.TOP);
              }

              _context.next = 11;
              return _this._initializeViewerComponents();

            case 11:
              _this.bindEvents();

              _this.bindWindowEvents();

              appContainer = appConfig.appContainer || document.documentElement;

              _this.l10n.translate(appContainer).then(function () {
                _this.eventBus.dispatch("localized", {
                  source: _this
                });
              });

              _this._initializedCapability.resolve();

            case 16:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }))();
  },
  _readPreferences: function _readPreferences() {
    var _this2 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
      var prefs, name;
      return _regenerator["default"].wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              if (!_app_options.AppOptions.get("disablePreferences")) {
                _context2.next = 2;
                break;
              }

              return _context2.abrupt("return");

            case 2:
              _context2.prev = 2;
              _context2.next = 5;
              return _this2.preferences.getAll();

            case 5:
              prefs = _context2.sent;

              for (name in prefs) {
                _app_options.AppOptions.set(name, prefs[name]);
              }

              _context2.next = 12;
              break;

            case 9:
              _context2.prev = 9;
              _context2.t0 = _context2["catch"](2);
              console.error("_readPreferences: \"".concat(_context2.t0.message, "\"."));

            case 12:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2, null, [[2, 9]]);
    }))();
  },
  _parseHashParameters: function _parseHashParameters() {
    var _this3 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3() {
      var hash, hashParams, waitOn, viewer, enabled;
      return _regenerator["default"].wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              if (_app_options.AppOptions.get("pdfBugEnabled")) {
                _context3.next = 2;
                break;
              }

              return _context3.abrupt("return", undefined);

            case 2:
              hash = document.location.hash.substring(1);

              if (hash) {
                _context3.next = 5;
                break;
              }

              return _context3.abrupt("return", undefined);

            case 5:
              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)) {
                _context3.next = 23;
                break;
              }

              _context3.t0 = hashParams.textlayer;
              _context3.next = _context3.t0 === "off" ? 18 : _context3.t0 === "visible" ? 20 : _context3.t0 === "shadow" ? 20 : _context3.t0 === "hover" ? 20 : 23;
              break;

            case 18:
              _app_options.AppOptions.set("textLayerMode", _ui_utils.TextLayerMode.DISABLE);

              return _context3.abrupt("break", 23);

            case 20:
              viewer = _this3.appConfig.viewerContainer;
              viewer.classList.add("textLayer-" + hashParams.textlayer);
              return _context3.abrupt("break", 23);

            case 23:
              if ("pdfbug" in hashParams) {
                _app_options.AppOptions.set("pdfBug", true);

                _app_options.AppOptions.set("fontExtraProperties", true);

                enabled = hashParams.pdfbug.split(",");
                waitOn.push(loadAndEnablePDFBug(enabled));
              }

              if ("locale" in hashParams) {
                _app_options.AppOptions.set("locale", hashParams.locale);
              }

              return _context3.abrupt("return", Promise.all(waitOn)["catch"](function (reason) {
                console.error("_parseHashParameters: \"".concat(reason.message, "\"."));
              }));

            case 26:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }))();
  },
  _initializeL10n: function _initializeL10n() {
    var _this4 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4() {
      var dir;
      return _regenerator["default"].wrap(function _callee4$(_context4) {
        while (1) {
          switch (_context4.prev = _context4.next) {
            case 0:
              _this4.l10n = _this4.externalServices.createL10n({
                locale: _app_options.AppOptions.get("locale")
              });
              _context4.next = 3;
              return _this4.l10n.getDirection();

            case 3:
              dir = _context4.sent;
              document.getElementsByTagName("html")[0].dir = dir;

            case 5:
            case "end":
              return _context4.stop();
          }
        }
      }, _callee4);
    }))();
  },
  _initializeViewerComponents: function _initializeViewerComponents() {
    var _this5 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee5() {
      var appConfig, eventBus, pdfRenderingQueue, pdfLinkService, downloadManager, findController, container, viewer;
      return _regenerator["default"].wrap(function _callee5$(_context5) {
        while (1) {
          switch (_context5.prev = _context5.next) {
            case 0:
              appConfig = _this5.appConfig;
              eventBus = appConfig.eventBus || new _ui_utils.EventBus({
                isInAutomation: _this5.externalServices.isInAutomation
              });
              _this5.eventBus = eventBus;
              _this5.overlayManager = new _overlay_manager.OverlayManager();
              pdfRenderingQueue = new _pdf_rendering_queue.PDFRenderingQueue();
              pdfRenderingQueue.onIdle = _this5.cleanup.bind(_this5);
              _this5.pdfRenderingQueue = pdfRenderingQueue;
              pdfLinkService = new _pdf_link_service.PDFLinkService({
                eventBus: eventBus,
                externalLinkTarget: _app_options.AppOptions.get("externalLinkTarget"),
                externalLinkRel: _app_options.AppOptions.get("externalLinkRel"),
                ignoreDestinationZoom: _app_options.AppOptions.get("ignoreDestinationZoom")
              });
              _this5.pdfLinkService = pdfLinkService;
              downloadManager = _this5.externalServices.createDownloadManager();
              _this5.downloadManager = downloadManager;
              findController = new _pdf_find_controller.PDFFindController({
                linkService: pdfLinkService,
                eventBus: eventBus
              });
              _this5.findController = findController;
              container = appConfig.mainContainer;
              viewer = appConfig.viewerContainer;
              _this5.pdfViewer = new _pdf_viewer.PDFViewer({
                container: container,
                viewer: viewer,
                eventBus: eventBus,
                renderingQueue: pdfRenderingQueue,
                linkService: pdfLinkService,
                downloadManager: downloadManager,
                findController: findController,
                renderer: _app_options.AppOptions.get("renderer"),
                enableWebGL: _app_options.AppOptions.get("enableWebGL"),
                l10n: _this5.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(_this5.pdfViewer);
              pdfLinkService.setViewer(_this5.pdfViewer);
              _this5.pdfThumbnailViewer = new _pdf_thumbnail_viewer.PDFThumbnailViewer({
                container: appConfig.sidebar.thumbnailView,
                eventBus: eventBus,
                renderingQueue: pdfRenderingQueue,
                linkService: pdfLinkService,
                l10n: _this5.l10n
              });
              pdfRenderingQueue.setThumbnailViewer(_this5.pdfThumbnailViewer);
              _this5.pdfHistory = new _pdf_history.PDFHistory({
                linkService: pdfLinkService,
                eventBus: eventBus
              });
              pdfLinkService.setHistory(_this5.pdfHistory);

              if (!_this5.supportsIntegratedFind) {
                _this5.findBar = new _pdf_find_bar.PDFFindBar(appConfig.findBar, eventBus, _this5.l10n);
              }

              _this5.pdfDocumentProperties = new _pdf_document_properties.PDFDocumentProperties(appConfig.documentProperties, _this5.overlayManager, eventBus, _this5.l10n);
              _this5.pdfCursorTools = new _pdf_cursor_tools.PDFCursorTools({
                container: container,
                eventBus: eventBus,
                cursorToolOnLoad: _app_options.AppOptions.get("cursorToolOnLoad")
              });
              _this5.toolbar = new _toolbar.Toolbar(appConfig.toolbar, eventBus, _this5.l10n);
              _this5.secondaryToolbar = new _secondary_toolbar.SecondaryToolbar(appConfig.secondaryToolbar, container, eventBus);

              if (_this5.supportsFullscreen) {
                _this5.pdfPresentationMode = new _pdf_presentation_mode.PDFPresentationMode({
                  container: container,
                  pdfViewer: _this5.pdfViewer,
                  eventBus: eventBus,
                  contextMenuItems: appConfig.fullscreen
                });
              }

              _this5.passwordPrompt = new _password_prompt.PasswordPrompt(appConfig.passwordOverlay, _this5.overlayManager, _this5.l10n);
              _this5.pdfOutlineViewer = new _pdf_outline_viewer.PDFOutlineViewer({
                container: appConfig.sidebar.outlineView,
                eventBus: eventBus,
                linkService: pdfLinkService
              });
              _this5.pdfAttachmentViewer = new _pdf_attachment_viewer.PDFAttachmentViewer({
                container: appConfig.sidebar.attachmentsView,
                eventBus: eventBus,
                downloadManager: downloadManager
              });
              _this5.pdfLayerViewer = new _pdf_layer_viewer.PDFLayerViewer({
                container: appConfig.sidebar.layersView,
                eventBus: eventBus,
                l10n: _this5.l10n
              });
              _this5.pdfSidebar = new _pdf_sidebar.PDFSidebar({
                elements: appConfig.sidebar,
                pdfViewer: _this5.pdfViewer,
                pdfThumbnailViewer: _this5.pdfThumbnailViewer,
                eventBus: eventBus,
                l10n: _this5.l10n
              });
              _this5.pdfSidebar.onToggled = _this5.forceRendering.bind(_this5);
              _this5.pdfSidebarResizer = new _pdf_sidebar_resizer.PDFSidebarResizer(appConfig.sidebarResizer, eventBus, _this5.l10n);

            case 35:
            case "end":
              return _context5.stop();
          }
        }
      }, _callee5);
    }))();
  },
  run: function run(config) {
    this.initialize(config).then(webViewerInitialized);
  },

  get initialized() {
    return this._initializedCapability.settled;
  },

  get initializedPromise() {
    return this._initializedCapability.promise;
  },

  zoomIn: function zoomIn(ticks) {
    if (this.pdfViewer.isInPresentationMode) {
      return;
    }

    var 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: function zoomOut(ticks) {
    if (this.pdfViewer.isInPresentationMode) {
      return;
    }

    var 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: function 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() {
    var support;
    var 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() {
    var bar = new _ui_utils.ProgressBar("#loadingBar");
    return (0, _pdfjsLib.shadow)(this, "loadingBar", bar);
  },

  get supportedMouseWheelZoomModifierKeys() {
    return this.externalServices.supportedMouseWheelZoomModifierKeys;
  },

  initPassiveLoading: function initPassiveLoading() {
    throw new Error("Not implemented: initPassiveLoading");
  },
  setTitleUsingUrl: function setTitleUsingUrl() {
    var url = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "";
    this.url = url;
    this.baseUrl = url.split("#")[0];
    var title = (0, _ui_utils.getPDFFileNameFromURL)(url, "");

    if (!title) {
      try {
        title = decodeURIComponent((0, _pdfjsLib.getFilenameFromUrl)(url)) || url;
      } catch (ex) {
        title = url;
      }
    }

    this.setTitle(title);
  },
  setTitle: function setTitle(title) {
    if (this.isViewerEmbedded) {
      return;
    }

    document.title = title;
  },
  close: function close() {
    var _this6 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee6() {
      var errorWrapper, promise;
      return _regenerator["default"].wrap(function _callee6$(_context6) {
        while (1) {
          switch (_context6.prev = _context6.next) {
            case 0:
              errorWrapper = _this6.appConfig.errorWrapper.container;
              errorWrapper.setAttribute("hidden", "true");

              if (_this6.pdfLoadingTask) {
                _context6.next = 4;
                break;
              }

              return _context6.abrupt("return", undefined);

            case 4:
              promise = _this6.pdfLoadingTask.destroy();
              _this6.pdfLoadingTask = null;

              if (_this6.pdfDocument) {
                _this6.pdfDocument = null;

                _this6.pdfThumbnailViewer.setDocument(null);

                _this6.pdfViewer.setDocument(null);

                _this6.pdfLinkService.setDocument(null);

                _this6.pdfDocumentProperties.setDocument(null);
              }

              webViewerResetPermissions();
              _this6.store = null;
              _this6.isInitialViewSet = false;
              _this6.downloadComplete = false;
              _this6.url = "";
              _this6.baseUrl = "";
              _this6.contentDispositionFilename = null;
              _this6.triggerDelayedFallback = null;
              _this6._saveInProgress = false;

              _this6.pdfSidebar.reset();

              _this6.pdfOutlineViewer.reset();

              _this6.pdfAttachmentViewer.reset();

              _this6.pdfLayerViewer.reset();

              if (_this6.pdfHistory) {
                _this6.pdfHistory.reset();
              }

              if (_this6.findBar) {
                _this6.findBar.reset();
              }

              _this6.toolbar.reset();

              _this6.secondaryToolbar.reset();

              if (typeof PDFBug !== "undefined") {
                PDFBug.cleanup();
              }

              return _context6.abrupt("return", promise);

            case 26:
            case "end":
              return _context6.stop();
          }
        }
      }, _callee6);
    }))();
  },
  open: function open(file, args) {
    var _this7 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee7() {
      var workerParameters, key, parameters, apiParameters, _key, value, _key2, _value, loadingTask;

      return _regenerator["default"].wrap(function _callee7$(_context7) {
        while (1) {
          switch (_context7.prev = _context7.next) {
            case 0:
              if (!_this7.pdfLoadingTask) {
                _context7.next = 3;
                break;
              }

              _context7.next = 3;
              return _this7.close();

            case 3:
              workerParameters = _app_options.AppOptions.getAll(_app_options.OptionKind.WORKER);

              for (key in workerParameters) {
                _pdfjsLib.GlobalWorkerOptions[key] = workerParameters[key];
              }

              parameters = Object.create(null);

              if (typeof file === "string") {
                _this7.setTitleUsingUrl(file);

                parameters.url = file;
              } else if (file && "byteLength" in file) {
                parameters.data = file;
              } else if (file.url && file.originalUrl) {
                _this7.setTitleUsingUrl(file.originalUrl);

                parameters.url = file.url;
              }

              apiParameters = _app_options.AppOptions.getAll(_app_options.OptionKind.API);

              for (_key in apiParameters) {
                value = apiParameters[_key];

                if (_key === "docBaseUrl" && !value) {}

                parameters[_key] = value;
              }

              if (args) {
                for (_key2 in args) {
                  _value = args[_key2];

                  if (_key2 === "length") {
                    _this7.pdfDocumentProperties.setFileSize(_value);
                  }

                  parameters[_key2] = _value;
                }
              }

              loadingTask = (0, _pdfjsLib.getDocument)(parameters);
              _this7.pdfLoadingTask = loadingTask;

              loadingTask.onPassword = function (updateCallback, reason) {
                _this7.pdfLinkService.externalLinkEnabled = false;

                _this7.passwordPrompt.setUpdateCallback(updateCallback, reason);

                _this7.passwordPrompt.open();
              };

              loadingTask.onProgress = function (_ref) {
                var loaded = _ref.loaded,
                    total = _ref.total;

                _this7.progress(loaded / total);
              };

              loadingTask.onUnsupportedFeature = _this7.fallback.bind(_this7);
              return _context7.abrupt("return", loadingTask.promise.then(function (pdfDocument) {
                _this7.load(pdfDocument);
              }, function (exception) {
                if (loadingTask !== _this7.pdfLoadingTask) {
                  return undefined;
                }

                var message = exception && exception.message;
                var loadingErrorMessage;

                if (exception instanceof _pdfjsLib.InvalidPDFException) {
                  loadingErrorMessage = _this7.l10n.get("invalid_file_error", null, "Invalid or corrupted PDF file.");
                } else if (exception instanceof _pdfjsLib.MissingPDFException) {
                  loadingErrorMessage = _this7.l10n.get("missing_file_error", null, "Missing PDF file.");
                } else if (exception instanceof _pdfjsLib.UnexpectedResponseException) {
                  loadingErrorMessage = _this7.l10n.get("unexpected_response_error", null, "Unexpected server response.");
                } else {
                  loadingErrorMessage = _this7.l10n.get("loading_error", null, "An error occurred while loading the PDF.");
                }

                return loadingErrorMessage.then(function (msg) {
                  _this7.error(msg, {
                    message: message
                  });

                  throw exception;
                });
              }));

            case 16:
            case "end":
              return _context7.stop();
          }
        }
      }, _callee7);
    }))();
  },
  download: function download() {
    var _this8 = this;

    var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
        _ref2$sourceEventType = _ref2.sourceEventType,
        sourceEventType = _ref2$sourceEventType === void 0 ? "download" : _ref2$sourceEventType;

    function downloadByUrl() {
      downloadManager.downloadUrl(url, filename);
    }

    var url = this.baseUrl;
    var filename = this.contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(this.url);
    var downloadManager = this.downloadManager;

    downloadManager.onerror = function (err) {
      _this8.error("PDF failed to download: ".concat(err));
    };

    if (!this.pdfDocument || !this.downloadComplete) {
      downloadByUrl();
      return;
    }

    this.pdfDocument.getData().then(function (data) {
      var blob = new Blob([data], {
        type: "application/pdf"
      });
      downloadManager.download(blob, url, filename, sourceEventType);
    })["catch"](downloadByUrl);
  },
  save: function save() {
    var _this9 = this;

    var _ref3 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
        _ref3$sourceEventType = _ref3.sourceEventType,
        sourceEventType = _ref3$sourceEventType === void 0 ? "download" : _ref3$sourceEventType;

    if (this._saveInProgress) {
      return;
    }

    var url = this.baseUrl;
    var filename = this.contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(this.url);
    var downloadManager = this.downloadManager;

    downloadManager.onerror = function (err) {
      _this9.error("PDF failed to be saved: ".concat(err));
    };

    if (!this.pdfDocument || !this.downloadComplete) {
      this.download({
        sourceEventType: sourceEventType
      });
      return;
    }

    this._saveInProgress = true;
    this.pdfDocument.saveDocument(this.pdfDocument.annotationStorage).then(function (data) {
      var blob = new Blob([data], {
        type: "application/pdf"
      });
      downloadManager.download(blob, url, filename, sourceEventType);
    })["catch"](function () {
      _this9.download({
        sourceEventType: sourceEventType
      });
    })["finally"](function () {
      _this9._saveInProgress = false;
    });
  },
  _delayedFallback: function _delayedFallback(featureId) {
    var _this10 = this;

    this.externalServices.reportTelemetry({
      type: "unsupportedFeature",
      featureId: featureId
    });

    if (!this.triggerDelayedFallback) {
      this.triggerDelayedFallback = function () {
        _this10.fallback(featureId);

        _this10.triggerDelayedFallback = null;
      };
    }
  },
  fallback: function fallback(featureId) {
    this.externalServices.reportTelemetry({
      type: "unsupportedFeature",
      featureId: featureId
    });

    if (this.fellback) {
      return;
    }

    this.fellback = true;
    this.externalServices.fallback({
      featureId: featureId,
      url: this.baseUrl
    }, function response(download) {
      if (!download) {
        return;
      }

      PDFViewerApplication.download({
        sourceEventType: "download"
      });
    });
  },
  error: function error(message, moreInfo) {
    var 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}}"));
        }
      }
    }

    var errorWrapperConfig = this.appConfig.errorWrapper;
    var errorWrapper = errorWrapperConfig.container;
    errorWrapper.removeAttribute("hidden");
    var errorMessage = errorWrapperConfig.errorMessage;
    errorMessage.textContent = message;
    var closeButton = errorWrapperConfig.closeButton;

    closeButton.onclick = function () {
      errorWrapper.setAttribute("hidden", "true");
    };

    var errorMoreInfo = errorWrapperConfig.errorMoreInfo;
    var moreInfoButton = errorWrapperConfig.moreInfoButton;
    var 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(function (parts) {
      errorMoreInfo.value = parts.join("\n");
    });
  },
  progress: function progress(level) {
    var _this11 = this;

    if (this.downloadComplete) {
      return;
    }

    var percent = Math.round(level * 100);

    if (percent > this.loadingBar.percent || isNaN(percent)) {
      this.loadingBar.percent = percent;
      var 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(function () {
          _this11.loadingBar.hide();

          _this11.disableAutoFetchLoadingBarTimeout = null;
        }, DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT);
      }
    }
  },
  load: function load(pdfDocument) {
    var _this12 = this;

    this.pdfDocument = pdfDocument;
    pdfDocument.getDownloadInfo().then(function () {
      _this12.downloadComplete = true;

      _this12.loadingBar.hide();

      firstPagePromise.then(function () {
        _this12.eventBus.dispatch("documentloaded", {
          source: _this12
        });
      });
    });
    var pageLayoutPromise = pdfDocument.getPageLayout()["catch"](function () {});
    var pageModePromise = pdfDocument.getPageMode()["catch"](function () {});
    var openActionPromise = pdfDocument.getOpenAction()["catch"](function () {});
    this.toolbar.setPagesCount(pdfDocument.numPages, false);
    this.secondaryToolbar.setPagesCount(pdfDocument.numPages);
    var baseDocumentUrl;
    baseDocumentUrl = null;
    this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
    this.pdfDocumentProperties.setDocument(pdfDocument, this.url);
    var annotationStorage = pdfDocument.annotationStorage;

    annotationStorage.onSetModified = function () {
      window.addEventListener("beforeunload", beforeUnload);
    };

    annotationStorage.onResetModified = function () {
      window.removeEventListener("beforeunload", beforeUnload);
    };

    var pdfViewer = this.pdfViewer;
    pdfViewer.setDocument(pdfDocument);
    var firstPagePromise = pdfViewer.firstPagePromise,
        onePageRendered = pdfViewer.onePageRendered,
        pagesPromise = pdfViewer.pagesPromise;
    var pdfThumbnailViewer = this.pdfThumbnailViewer;
    pdfThumbnailViewer.setDocument(pdfDocument);
    var 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"](function () {
      return Object.create(null);
    });
    firstPagePromise.then(function (pdfPage) {
      _this12.loadingBar.setWidth(_this12.appConfig.viewerContainer);

      Promise.all([_ui_utils.animationStarted, storedPromise, pageLayoutPromise, pageModePromise, openActionPromise]).then( /*#__PURE__*/function () {
        var _ref5 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee8(_ref4) {
          var _ref6, timeStamp, stored, pageLayout, pageMode, openAction, viewOnLoad, initialBookmark, zoom, hash, rotation, sidebarView, scrollMode, spreadMode;

          return _regenerator["default"].wrap(function _callee8$(_context8) {
            while (1) {
              switch (_context8.prev = _context8.next) {
                case 0:
                  _ref6 = _slicedToArray(_ref4, 5), timeStamp = _ref6[0], stored = _ref6[1], pageLayout = _ref6[2], pageMode = _ref6[3], openAction = _ref6[4];
                  viewOnLoad = _app_options.AppOptions.get("viewOnLoad");

                  _this12._initializePdfHistory({
                    fingerprint: pdfDocument.fingerprint,
                    viewOnLoad: viewOnLoad,
                    initialDest: openAction && openAction.dest
                  });

                  initialBookmark = _this12.initialBookmark;
                  zoom = _app_options.AppOptions.get("defaultZoomValue");
                  hash = zoom ? "zoom=".concat(zoom) : null;
                  rotation = null;
                  sidebarView = _app_options.AppOptions.get("sidebarViewOnLoad");
                  scrollMode = _app_options.AppOptions.get("scrollModeOnLoad");
                  spreadMode = _app_options.AppOptions.get("spreadModeOnLoad");

                  if (stored.page && viewOnLoad !== ViewOnLoad.INITIAL) {
                    hash = "page=".concat(stored.page, "&zoom=").concat(zoom || stored.zoom, ",") + "".concat(stored.scrollLeft, ",").concat(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);
                  }

                  _this12.setInitialView(hash, {
                    rotation: rotation,
                    sidebarView: sidebarView,
                    scrollMode: scrollMode,
                    spreadMode: spreadMode
                  });

                  _this12.eventBus.dispatch("documentinit", {
                    source: _this12
                  });

                  if (!_this12.isViewerEmbedded) {
                    pdfViewer.focus();
                  }

                  _this12._initializePermissions(pdfDocument);

                  _context8.next = 19;
                  return Promise.race([pagesPromise, new Promise(function (resolve) {
                    setTimeout(resolve, FORCE_PAGES_LOADED_TIMEOUT);
                  })]);

                case 19:
                  if (!(!initialBookmark && !hash)) {
                    _context8.next = 21;
                    break;
                  }

                  return _context8.abrupt("return");

                case 21:
                  if (!pdfViewer.hasEqualPageSizes) {
                    _context8.next = 23;
                    break;
                  }

                  return _context8.abrupt("return");

                case 23:
                  _this12.initialBookmark = initialBookmark;
                  pdfViewer.currentScaleValue = pdfViewer.currentScaleValue;

                  _this12.setInitialView(hash);

                case 26:
                case "end":
                  return _context8.stop();
              }
            }
          }, _callee8);
        }));

        return function (_x) {
          return _ref5.apply(this, arguments);
        };
      }())["catch"](function () {
        _this12.setInitialView();
      }).then(function () {
        pdfViewer.update();
      });
    });
    pagesPromise.then(function () {
      _this12._initializeAutoPrint(pdfDocument, openActionPromise);
    });
    onePageRendered.then(function () {
      pdfDocument.getOutline().then(function (outline) {
        _this12.pdfOutlineViewer.render({
          outline: outline
        });
      });
      pdfDocument.getAttachments().then(function (attachments) {
        _this12.pdfAttachmentViewer.render({
          attachments: attachments
        });
      });
      pdfViewer.optionalContentConfigPromise.then(function (optionalContentConfig) {
        _this12.pdfLayerViewer.render({
          optionalContentConfig: optionalContentConfig,
          pdfDocument: pdfDocument
        });
      });
    });

    this._initializePageLabels(pdfDocument);

    this._initializeMetadata(pdfDocument);
  },
  _initializeAutoPrint: function _initializeAutoPrint(pdfDocument, openActionPromise) {
    var _this13 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee9() {
      var _yield$Promise$all, _yield$Promise$all2, openAction, javaScript, triggerAutoPrint, _iterator, _step, js;

      return _regenerator["default"].wrap(function _callee9$(_context9) {
        while (1) {
          switch (_context9.prev = _context9.next) {
            case 0:
              _context9.next = 2;
              return Promise.all([openActionPromise, pdfDocument.getJavaScript()]);

            case 2:
              _yield$Promise$all = _context9.sent;
              _yield$Promise$all2 = _slicedToArray(_yield$Promise$all, 2);
              openAction = _yield$Promise$all2[0];
              javaScript = _yield$Promise$all2[1];

              if (!(pdfDocument !== _this13.pdfDocument)) {
                _context9.next = 8;
                break;
              }

              return _context9.abrupt("return");

            case 8:
              triggerAutoPrint = false;

              if (openAction && openAction.action === "Print") {
                triggerAutoPrint = true;
              }

              if (!javaScript) {
                _context9.next = 31;
                break;
              }

              javaScript.some(function (js) {
                if (!js) {
                  return false;
                }

                console.warn("Warning: JavaScript is not supported");

                _this13._delayedFallback(_pdfjsLib.UNSUPPORTED_FEATURES.javaScript);

                return true;
              });

              if (triggerAutoPrint) {
                _context9.next = 31;
                break;
              }

              _iterator = _createForOfIteratorHelper(javaScript);
              _context9.prev = 14;

              _iterator.s();

            case 16:
              if ((_step = _iterator.n()).done) {
                _context9.next = 23;
                break;
              }

              js = _step.value;

              if (!(js && _ui_utils.AutoPrintRegExp.test(js))) {
                _context9.next = 21;
                break;
              }

              triggerAutoPrint = true;
              return _context9.abrupt("break", 23);

            case 21:
              _context9.next = 16;
              break;

            case 23:
              _context9.next = 28;
              break;

            case 25:
              _context9.prev = 25;
              _context9.t0 = _context9["catch"](14);

              _iterator.e(_context9.t0);

            case 28:
              _context9.prev = 28;

              _iterator.f();

              return _context9.finish(28);

            case 31:
              if (_this13.supportsPrinting) {
                _context9.next = 33;
                break;
              }

              return _context9.abrupt("return");

            case 33:
              if (triggerAutoPrint) {
                setTimeout(function () {
                  window.print();
                });
              }

            case 34:
            case "end":
              return _context9.stop();
          }
        }
      }, _callee9, null, [[14, 25, 28, 31]]);
    }))();
  },
  _initializeMetadata: function _initializeMetadata(pdfDocument) {
    var _this14 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee10() {
      var _yield$pdfDocument$ge, info, metadata, contentDispositionFilename, pdfTitle, infoTitle, metadataTitle, versionId, generatorId, producer, formType;

      return _regenerator["default"].wrap(function _callee10$(_context10) {
        while (1) {
          switch (_context10.prev = _context10.next) {
            case 0:
              _context10.next = 2;
              return pdfDocument.getMetadata();

            case 2:
              _yield$pdfDocument$ge = _context10.sent;
              info = _yield$pdfDocument$ge.info;
              metadata = _yield$pdfDocument$ge.metadata;
              contentDispositionFilename = _yield$pdfDocument$ge.contentDispositionFilename;

              if (!(pdfDocument !== _this14.pdfDocument)) {
                _context10.next = 8;
                break;
              }

              return _context10.abrupt("return");

            case 8:
              _this14.documentInfo = info;
              _this14.metadata = metadata;
              _this14.contentDispositionFilename = contentDispositionFilename;
              console.log("PDF ".concat(pdfDocument.fingerprint, " [").concat(info.PDFFormatVersion, " ") + "".concat((info.Producer || "-").trim(), " / ").concat((info.Creator || "-").trim(), "] ") + "(PDF.js: ".concat(_pdfjsLib.version || "-") + "".concat(_this14.pdfViewer.enableWebGL ? " [WebGL]" : "", ")"));
              infoTitle = info && info.Title;

              if (infoTitle) {
                pdfTitle = infoTitle;
              }

              metadataTitle = metadata && metadata.get("dc:title");

              if (metadataTitle) {
                if (metadataTitle !== "Untitled" && !/[\uFFF0-\uFFFF]/g.test(metadataTitle)) {
                  pdfTitle = metadataTitle;
                }
              }

              if (pdfTitle) {
                _this14.setTitle("".concat(pdfTitle, " - ").concat(contentDispositionFilename || document.title));
              } else if (contentDispositionFilename) {
                _this14.setTitle(contentDispositionFilename);
              }

              if (info.IsXFAPresent && !info.IsAcroFormPresent) {
                console.warn("Warning: XFA is not supported");

                _this14._delayedFallback(_pdfjsLib.UNSUPPORTED_FEATURES.forms);
              } else if ((info.IsAcroFormPresent || info.IsXFAPresent) && !_this14.pdfViewer.renderInteractiveForms) {
                console.warn("Warning: Interactive form support is not enabled");

                _this14._delayedFallback(_pdfjsLib.UNSUPPORTED_FEATURES.forms);
              }

              versionId = "other";

              if (KNOWN_VERSIONS.includes(info.PDFFormatVersion)) {
                versionId = "v".concat(info.PDFFormatVersion.replace(".", "_"));
              }

              generatorId = "other";

              if (info.Producer) {
                producer = info.Producer.toLowerCase();
                KNOWN_GENERATORS.some(function (generator) {
                  if (!producer.includes(generator)) {
                    return false;
                  }

                  generatorId = generator.replace(/[ .\-]/g, "_");
                  return true;
                });
              }

              formType = null;

              if (info.IsXFAPresent) {
                formType = "xfa";
              } else if (info.IsAcroFormPresent) {
                formType = "acroform";
              }

              _this14.externalServices.reportTelemetry({
                type: "documentInfo",
                version: versionId,
                generator: generatorId,
                formType: formType
              });

            case 25:
            case "end":
              return _context10.stop();
          }
        }
      }, _callee10);
    }))();
  },
  _initializePageLabels: function _initializePageLabels(pdfDocument) {
    var _this15 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee11() {
      var labels, numLabels, i, pdfViewer, pdfThumbnailViewer, toolbar;
      return _regenerator["default"].wrap(function _callee11$(_context11) {
        while (1) {
          switch (_context11.prev = _context11.next) {
            case 0:
              _context11.next = 2;
              return pdfDocument.getPageLabels();

            case 2:
              labels = _context11.sent;

              if (!(pdfDocument !== _this15.pdfDocument)) {
                _context11.next = 5;
                break;
              }

              return _context11.abrupt("return");

            case 5:
              if (!(!labels || _app_options.AppOptions.get("disablePageLabels"))) {
                _context11.next = 7;
                break;
              }

              return _context11.abrupt("return");

            case 7:
              numLabels = labels.length;

              if (!(numLabels !== _this15.pagesCount)) {
                _context11.next = 11;
                break;
              }

              console.error("The number of Page Labels does not match the number of pages in the document.");
              return _context11.abrupt("return");

            case 11:
              i = 0;

              while (i < numLabels && labels[i] === (i + 1).toString()) {
                i++;
              }

              if (!(i === numLabels)) {
                _context11.next = 15;
                break;
              }

              return _context11.abrupt("return");

            case 15:
              pdfViewer = _this15.pdfViewer, pdfThumbnailViewer = _this15.pdfThumbnailViewer, toolbar = _this15.toolbar;
              pdfViewer.setPageLabels(labels);
              pdfThumbnailViewer.setPageLabels(labels);
              toolbar.setPagesCount(numLabels, true);
              toolbar.setPageNumber(pdfViewer.currentPageNumber, pdfViewer.currentPageLabel);

            case 20:
            case "end":
              return _context11.stop();
          }
        }
      }, _callee11);
    }))();
  },
  _initializePdfHistory: function _initializePdfHistory(_ref7) {
    var fingerprint = _ref7.fingerprint,
        viewOnLoad = _ref7.viewOnLoad,
        _ref7$initialDest = _ref7.initialDest,
        initialDest = _ref7$initialDest === void 0 ? null : _ref7$initialDest;

    if (this.isViewerEmbedded || _app_options.AppOptions.get("disableHistory")) {
      return;
    }

    this.pdfHistory.initialize({
      fingerprint: 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
      });
    }
  },
  _initializePermissions: function _initializePermissions(pdfDocument) {
    var _this16 = this;

    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee12() {
      var permissions;
      return _regenerator["default"].wrap(function _callee12$(_context12) {
        while (1) {
          switch (_context12.prev = _context12.next) {
            case 0:
              _context12.next = 2;
              return pdfDocument.getPermissions();

            case 2:
              permissions = _context12.sent;

              if (!(pdfDocument !== _this16.pdfDocument)) {
                _context12.next = 5;
                break;
              }

              return _context12.abrupt("return");

            case 5:
              if (!(!permissions || !_app_options.AppOptions.get("enablePermissions"))) {
                _context12.next = 7;
                break;
              }

              return _context12.abrupt("return");

            case 7:
              if (!permissions.includes(_pdfjsLib.PermissionFlag.COPY)) {
                _this16.appConfig.viewerContainer.classList.add(ENABLE_PERMISSIONS_CLASS);
              }

            case 8:
            case "end":
              return _context12.stop();
          }
        }
      }, _callee12);
    }))();
  },
  setInitialView: function setInitialView(storedHash) {
    var _this17 = this;

    var _ref8 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
        rotation = _ref8.rotation,
        sidebarView = _ref8.sidebarView,
        scrollMode = _ref8.scrollMode,
        spreadMode = _ref8.spreadMode;

    var setRotation = function setRotation(angle) {
      if ((0, _ui_utils.isValidRotation)(angle)) {
        _this17.pdfViewer.pagesRotation = angle;
      }
    };

    var setViewerModes = function setViewerModes(scroll, spread) {
      if ((0, _ui_utils.isValidScrollMode)(scroll)) {
        _this17.pdfViewer.scrollMode = scroll;
      }

      if ((0, _ui_utils.isValidSpreadMode)(spread)) {
        _this17.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: function cleanup() {
    if (!this.pdfDocument) {
      return;
    }

    this.pdfViewer.cleanup();
    this.pdfThumbnailViewer.cleanup();

    if (this.pdfViewer.renderer !== _ui_utils.RendererType.SVG) {
      this.pdfDocument.cleanup();
    }
  },
  forceRendering: function forceRendering() {
    this.pdfRenderingQueue.printing = this.printing;
    this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar.isThumbnailViewVisible;
    this.pdfRenderingQueue.renderHighestPriority();
  },
  beforePrint: function beforePrint() {
    var _this18 = this;

    if (this.printService) {
      return;
    }

    if (!this.supportsPrinting) {
      this.l10n.get("printing_not_supported", null, "Warning: Printing is not fully supported by this browser.").then(function (printMessage) {
        _this18.error(printMessage);
      });
      return;
    }

    if (!this.pdfViewer.pageViewsReady) {
      this.l10n.get("printing_not_ready", null, "Warning: The PDF is not fully loaded for printing.").then(function (notReadyMessage) {
        window.alert(notReadyMessage);
      });
      return;
    }

    var pagesOverview = this.pdfViewer.getPagesOverview();
    var printContainer = this.appConfig.printContainer;

    var printResolution = _app_options.AppOptions.get("printResolution");

    var optionalContentConfigPromise = this.pdfViewer.optionalContentConfigPromise;
    var printService = PDFPrintServiceFactory.instance.createPrintService(this.pdfDocument, pagesOverview, printContainer, printResolution, optionalContentConfigPromise, this.l10n);
    this.printService = printService;
    this.forceRendering();
    printService.layout();
    this.externalServices.reportTelemetry({
      type: "print"
    });
  },
  afterPrint: function afterPrint() {
    if (this.printService) {
      this.printService.destroy();
      this.printService = null;

      if (this.pdfDocument) {
        this.pdfDocument.annotationStorage.resetModified();
      }
    }

    this.forceRendering();
  },
  rotatePages: function rotatePages(delta) {
    if (!this.pdfDocument) {
      return;
    }

    var newRotation = (this.pdfViewer.pagesRotation + 360 + delta) % 360;
    this.pdfViewer.pagesRotation = newRotation;
  },
  requestPresentationMode: function requestPresentationMode() {
    if (!this.pdfPresentationMode) {
      return;
    }

    this.pdfPresentationMode.request();
  },
  bindEvents: function bindEvents() {
    var eventBus = this.eventBus,
        _boundEvents = this._boundEvents;
    _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("save", webViewerSave);

    eventBus._on("firstpage", webViewerFirstPage);

    eventBus._on("lastpage", webViewerLastPage);

    eventBus._on("nextpage", webViewerNextPage);

    eventBus._on("previouspage", webViewerPreviousPage);

    eventBus._on("zoomin", webViewerZoomIn);

    eventBus._on("zoomout", webViewerZoomOut);

    eventBus._on("zoomreset", webViewerZoomReset);

    eventBus._on("pagenumberchanged", webViewerPageNumberChanged);

    eventBus._on("scalechanged", webViewerScaleChanged);

    eventBus._on("rotatecw", webViewerRotateCw);

    eventBus._on("rotateccw", webViewerRotateCcw);

    eventBus._on("optionalcontentconfig", webViewerOptionalContentConfig);

    eventBus._on("switchscrollmode", webViewerSwitchScrollMode);

    eventBus._on("scrollmodechanged", webViewerScrollModeChanged);

    eventBus._on("switchspreadmode", webViewerSwitchSpreadMode);

    eventBus._on("spreadmodechanged", webViewerSpreadModeChanged);

    eventBus._on("documentproperties", webViewerDocumentProperties);

    eventBus._on("find", webViewerFind);

    eventBus._on("findfromurlhash", webViewerFindFromUrlHash);

    eventBus._on("updatefindmatchescount", webViewerUpdateFindMatchesCount);

    eventBus._on("updatefindcontrolstate", webViewerUpdateFindControlState);

    eventBus._on("fileinputchange", webViewerFileInputChange);

    eventBus._on("openfile", webViewerOpenFile);
  },
  bindWindowEvents: function bindWindowEvents() {
    var eventBus = this.eventBus,
        _boundEvents = this._boundEvents;

    _boundEvents.windowResize = function () {
      eventBus.dispatch("resize", {
        source: window
      });
    };

    _boundEvents.windowHashChange = function () {
      eventBus.dispatch("hashchange", {
        source: window,
        hash: document.location.hash.substring(1)
      });
    };

    _boundEvents.windowBeforePrint = function () {
      eventBus.dispatch("beforeprint", {
        source: window
      });
    };

    _boundEvents.windowAfterPrint = function () {
      eventBus.dispatch("afterprint", {
        source: window
      });
    };

    window.addEventListener("visibilitychange", webViewerVisibilityChange);
    window.addEventListener("wheel", webViewerWheel, {
      passive: false
    });
    window.addEventListener("touchstart", webViewerTouchStart, {
      passive: false
    });
    window.addEventListener("click", webViewerClick);
    window.addEventListener("keydown", webViewerKeyDown);
    window.addEventListener("keyup", webViewerKeyUp);
    window.addEventListener("resize", _boundEvents.windowResize);
    window.addEventListener("hashchange", _boundEvents.windowHashChange);
    window.addEventListener("beforeprint", _boundEvents.windowBeforePrint);
    window.addEventListener("afterprint", _boundEvents.windowAfterPrint);
  },
  unbindEvents: function unbindEvents() {
    var eventBus = this.eventBus,
        _boundEvents = this._boundEvents;

    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("save", webViewerSave);

    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("optionalcontentconfig", webViewerOptionalContentConfig);

    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: function unbindWindowEvents() {
    var _boundEvents = this._boundEvents;
    window.removeEventListener("visibilitychange", webViewerVisibilityChange);
    window.removeEventListener("wheel", webViewerWheel, {
      passive: false
    });
    window.removeEventListener("touchstart", webViewerTouchStart, {
      passive: false
    });
    window.removeEventListener("click", webViewerClick);
    window.removeEventListener("keydown", webViewerKeyDown);
    window.removeEventListener("keyup", webViewerKeyUp);
    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;
  },
  accumulateWheelTicks: function accumulateWheelTicks(ticks) {
    if (this._wheelUnusedTicks > 0 && ticks < 0 || this._wheelUnusedTicks < 0 && ticks > 0) {
      this._wheelUnusedTicks = 0;
    }

    this._wheelUnusedTicks += ticks;
    var wholeTicks = Math.sign(this._wheelUnusedTicks) * Math.floor(Math.abs(this._wheelUnusedTicks));
    this._wheelUnusedTicks -= wholeTicks;
    return wholeTicks;
  }
};
exports.PDFViewerApplication = PDFViewerApplication;
var validateFileURL;
{
  var HOSTED_VIEWER_ORIGINS = ["null", "http://mozilla.github.io", "https://mozilla.github.io"];

  validateFileURL = function validateFileURL(file) {
    if (file === undefined) {
      return;
    }

    try {
      var viewerOrigin = new URL(window.location.href).origin || "null";

      if (HOSTED_VIEWER_ORIGINS.includes(viewerOrigin)) {
        return;
      }

      var _URL = new URL(file, window.location.href),
          origin = _URL.origin,
          protocol = _URL.protocol;
		//跨域限制
      // if (origin !== viewerOrigin && protocol !== "blob:") {
      //   throw new Error("file origin does not match viewer's");
      // }
    } catch (ex) {
      var message = ex && ex.message;
      PDFViewerApplication.l10n.get("loading_error", null, "An error occurred while loading the PDF.").then(function (loadingErrorMessage) {
        PDFViewerApplication.error(loadingErrorMessage, {
          message: message
        });
      });
      throw ex;
    }
  };
}

function loadFakeWorker() {
  return _loadFakeWorker.apply(this, arguments);
}

function _loadFakeWorker() {
  _loadFakeWorker = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee13() {
    return _regenerator["default"].wrap(function _callee13$(_context13) {
      while (1) {
        switch (_context13.prev = _context13.next) {
          case 0:
            if (!_pdfjsLib.GlobalWorkerOptions.workerSrc) {
              _pdfjsLib.GlobalWorkerOptions.workerSrc = _app_options.AppOptions.get("workerSrc");
            }

            return _context13.abrupt("return", (0, _pdfjsLib.loadScript)(_pdfjsLib.PDFWorker.getWorkerSrc()));

          case 2:
          case "end":
            return _context13.stop();
        }
      }
    }, _callee13);
  }));
  return _loadFakeWorker.apply(this, arguments);
}

function loadAndEnablePDFBug(enabledTabs) {
  var appConfig = PDFViewerApplication.appConfig;
  return (0, _pdfjsLib.loadScript)(appConfig.debuggerScriptPath).then(function () {
    PDFBug.enable(enabledTabs);
    PDFBug.init({
      OPS: _pdfjsLib.OPS
    }, appConfig.mainContainer);
  });
}

function webViewerInitialized() {
  var appConfig = PDFViewerApplication.appConfig;
  var file;
  var queryString = document.location.search.substring(1);
  var params = (0, _ui_utils.parseQueryString)(queryString);
  file = "file" in params ? params.file : _app_options.AppOptions.get("defaultUrl");
  validateFileURL(file);
  var 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) {
    var 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();
    var 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(function (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(function (msg) {
      PDFViewerApplication.error(msg, reason);
    });
  }
}

var webViewerOpenFileViaURL;
{
  webViewerOpenFileViaURL = function webViewerOpenFileViaURL(file) {
    if (file && file.lastIndexOf("file:", 0) === 0) {
      PDFViewerApplication.setTitleUsingUrl(file);
      var 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() {
  var appConfig = PDFViewerApplication.appConfig;

  if (!appConfig) {
    return;
  }

  appConfig.viewerContainer.classList.remove(ENABLE_PERMISSIONS_CLASS);
}

function webViewerPageRendered(evt) {
  var pageNumber = evt.pageNumber;
  var pageIndex = pageNumber - 1;
  var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);

  if (pageNumber === PDFViewerApplication.page) {
    PDFViewerApplication.toolbar.updateLoadingIndicatorState(false);
  }

  if (!pageView) {
    return;
  }

  if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
    var 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(function (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: stats
    });
  });
}

function webViewerPageMode(_ref9) {
  var mode = _ref9.mode;
  var 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 "layers":
      view = _pdf_sidebar.SidebarView.LAYERS;
      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) {
  switch (evt.action) {
    case "GoToPage":
      PDFViewerApplication.appConfig.toolbar.pageNumber.select();
      break;

    case "Find":
      if (!PDFViewerApplication.supportsIntegratedFind) {
        PDFViewerApplication.findBar.toggle();
      }

      break;

    case "Print":
      if (PDFViewerApplication.supportsPrinting) {
        webViewerPrint();
      }

      break;

    case "SaveAs":
      webViewerSave();
      break;
  }
}

function webViewerPresentationModeChanged(_ref10) {
  var active = _ref10.active,
      switchInProgress = _ref10.switchInProgress;
  var 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;
  var store = PDFViewerApplication.store;

  if (store && PDFViewerApplication.isInitialViewSet) {
    store.set("sidebarView", evt.view)["catch"](function () {});
  }
}

function webViewerUpdateViewarea(evt) {
  var 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 () {});
  }

  var href = PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams);
  PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href;
  PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href = href;
  var currentPage = PDFViewerApplication.pdfViewer.getPageView(PDFViewerApplication.page - 1);
  var loading = currentPage.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED;
  PDFViewerApplication.toolbar.updateLoadingIndicatorState(loading);
}

function webViewerScrollModeChanged(evt) {
  var store = PDFViewerApplication.store;

  if (store && PDFViewerApplication.isInitialViewSet) {
    store.set("scrollMode", evt.mode)["catch"](function () {});
  }
}

function webViewerSpreadModeChanged(evt) {
  var store = PDFViewerApplication.store;

  if (store && PDFViewerApplication.isInitialViewSet) {
    store.set("spreadMode", evt.mode)["catch"](function () {});
  }
}

function webViewerResize() {
  var pdfDocument = PDFViewerApplication.pdfDocument,
      pdfViewer = PDFViewerApplication.pdfViewer;

  if (!pdfDocument) {
    return;
  }

  var currentScaleValue = pdfViewer.currentScaleValue;

  if (currentScaleValue === "auto" || currentScaleValue === "page-fit" || currentScaleValue === "page-width") {
    pdfViewer.currentScaleValue = currentScaleValue;
  }

  pdfViewer.update();
}

function webViewerHashchange(evt) {
  var hash = evt.hash;

  if (!hash) {
    return;
  }

  if (!PDFViewerApplication.isInitialViewSet) {
    PDFViewerApplication.initialBookmark = hash;
  } else if (!PDFViewerApplication.pdfHistory.popStateInProgress) {
    PDFViewerApplication.pdfLinkService.setHash(hash);
  }
}

var webViewerFileInputChange, webViewerOpenFile;
{
  webViewerFileInputChange = function webViewerFileInputChange(evt) {
    if (PDFViewerApplication.pdfViewer && PDFViewerApplication.pdfViewer.isInPresentationMode) {
      return;
    }

    var file = evt.fileInput.files[0];

    if (!_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
      var url = URL.createObjectURL(file);

      if (file.name) {
        url = {
          url: url,
          originalUrl: file.name
        };
      }

      PDFViewerApplication.open(url);
    } else {
      PDFViewerApplication.setTitleUsingUrl(file.name);
      var fileReader = new FileReader();

      fileReader.onload = function webViewerChangeFileReaderOnload(event) {
        var buffer = event.target.result;
        PDFViewerApplication.open(new Uint8Array(buffer));
      };

      fileReader.readAsArrayBuffer(file);
    }

    var 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 webViewerOpenFile(evt) {
    var openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
    document.getElementById(openFileInputName).click();
  };
}

function webViewerPresentationMode() {
  PDFViewerApplication.requestPresentationMode();
}

function webViewerPrint() {
  window.print();
}

function webViewerDownloadOrSave(sourceEventType) {
  if (PDFViewerApplication.pdfDocument && PDFViewerApplication.pdfDocument.annotationStorage.size > 0) {
    PDFViewerApplication.save({
      sourceEventType: sourceEventType
    });
  } else {
    PDFViewerApplication.download({
      sourceEventType: sourceEventType
    });
  }
}

function webViewerDownload() {
  webViewerDownloadOrSave("download");
}

function webViewerSave() {
  webViewerDownloadOrSave("save");
}

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) {
  var 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 webViewerOptionalContentConfig(evt) {
  PDFViewerApplication.pdfViewer.optionalContentConfigPromise = evt.promise;
}

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(_ref11) {
  var matchesCount = _ref11.matchesCount;

  if (PDFViewerApplication.supportsIntegratedFind) {
    PDFViewerApplication.externalServices.updateFindMatchesCount(matchesCount);
  } else {
    PDFViewerApplication.findBar.updateResultsCount(matchesCount);
  }
}

function webViewerUpdateFindControlState(_ref12) {
  var state = _ref12.state,
      previous = _ref12.previous,
      matchesCount = _ref12.matchesCount,
      rawQuery = _ref12.rawQuery;

  if (PDFViewerApplication.supportsIntegratedFind) {
    PDFViewerApplication.externalServices.updateFindControlState({
      result: state,
      findPrevious: previous,
      matchesCount: matchesCount,
      rawQuery: rawQuery
    });
  } 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) {
  var 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) {
    var pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);

    if (pageView && pageView.stats) {
      Stats.add(page, pageView.stats);
    }
  }
}

function webViewerVisibilityChange(evt) {
  if (document.visibilityState === "visible") {
    setZoomDisabledTimeout();
  }
}

var zoomDisabledTimeout = null;

function setZoomDisabledTimeout() {
  if (zoomDisabledTimeout) {
    clearTimeout(zoomDisabledTimeout);
  }

  zoomDisabledTimeout = setTimeout(function () {
    zoomDisabledTimeout = null;
  }, WHEEL_ZOOM_DISABLED_TIMEOUT);
}

function webViewerWheel(evt) {
  var pdfViewer = PDFViewerApplication.pdfViewer,
      supportedMouseWheelZoomModifierKeys = PDFViewerApplication.supportedMouseWheelZoomModifierKeys;

  if (pdfViewer.isInPresentationMode) {
    return;
  }

  if (evt.ctrlKey && supportedMouseWheelZoomModifierKeys.ctrlKey || evt.metaKey && supportedMouseWheelZoomModifierKeys.metaKey) {
    evt.preventDefault();

    if (zoomDisabledTimeout || document.visibilityState === "hidden") {
      return;
    }

    var previousScale = pdfViewer.currentScale;
    var delta = (0, _ui_utils.normalizeWheelEventDirection)(evt);
    var ticks = 0;

    if (evt.deltaMode === WheelEvent.DOM_DELTA_LINE || evt.deltaMode === WheelEvent.DOM_DELTA_PAGE) {
      if (Math.abs(delta) >= 1) {
        ticks = Math.sign(delta);
      } else {
        ticks = PDFViewerApplication.accumulateWheelTicks(delta);
      }
    } else {
      var PIXELS_PER_LINE_SCALE = 30;
      ticks = PDFViewerApplication.accumulateWheelTicks(delta / PIXELS_PER_LINE_SCALE);
    }

    if (ticks < 0) {
      PDFViewerApplication.zoomOut(-ticks);
    } else if (ticks > 0) {
      PDFViewerApplication.zoomIn(ticks);
    }

    var currentScale = pdfViewer.currentScale;

    if (previousScale !== currentScale) {
      var scaleCorrectionFactor = currentScale / previousScale - 1;
      var rect = pdfViewer.container.getBoundingClientRect();
      var dx = evt.clientX - rect.left;
      var dy = evt.clientY - rect.top;
      pdfViewer.container.scrollLeft += dx * scaleCorrectionFactor;
      pdfViewer.container.scrollTop += dy * scaleCorrectionFactor;
    }
  } else {
    setZoomDisabledTimeout();
  }
}

function webViewerTouchStart(evt) {
  if (evt.touches.length > 1) {
    evt.preventDefault();
  }
}

function webViewerClick(evt) {
  if (PDFViewerApplication.triggerDelayedFallback && PDFViewerApplication.pdfViewer.containsElement(evt.target)) {
    PDFViewerApplication.triggerDelayedFallback();
  }

  if (!PDFViewerApplication.secondaryToolbar.isOpen) {
    return;
  }

  var appConfig = PDFViewerApplication.appConfig;

  if (PDFViewerApplication.pdfViewer.containsElement(evt.target) || appConfig.toolbar.container.contains(evt.target) && evt.target !== appConfig.secondaryToolbar.toggleButton) {
    PDFViewerApplication.secondaryToolbar.close();
  }
}

function webViewerKeyUp(evt) {
  if (evt.keyCode === 9) {
    if (PDFViewerApplication.triggerDelayedFallback) {
      PDFViewerApplication.triggerDelayedFallback();
    }
  }
}

function webViewerKeyDown(evt) {
  if (PDFViewerApplication.overlayManager.active) {
    return;
  }

  var handled = false,
      ensureViewerFocused = false;
  var cmd = (evt.ctrlKey ? 1 : 0) | (evt.altKey ? 2 : 0) | (evt.shiftKey ? 4 : 0) | (evt.metaKey ? 8 : 0);
  var pdfViewer = PDFViewerApplication.pdfViewer;
  var 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) {
          var 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;
    }
  }

  var eventBus = PDFViewerApplication.eventBus;

  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;
  }

  var curElement = document.activeElement || document.querySelector(":focus");
  var curElementTagName = curElement && curElement.tagName.toUpperCase();

  if (curElementTagName === "INPUT" || curElementTagName === "TEXTAREA" || curElementTagName === "SELECT" || curElement && curElement.isContentEditable) {
    if (evt.keyCode !== 27) {
      return;
    }
  }

  if (cmd === 0) {
    var 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 beforeUnload(evt) {
  evt.preventDefault();
  evt.returnValue = "";
  return false;
}

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.LAYERS;
  }

  return _pdf_sidebar.SidebarView.NONE;
}

var PDFPrintServiceFactory = {
  instance: {
    supportsPrinting: false,
    createPrintService: function createPrintService() {
      throw new Error("Not implemented: createPrintService");
    }
  }
};
exports.PDFPrintServiceFactory = PDFPrintServiceFactory;

/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


module.exports = __webpack_require__(3);

/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(module) {

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var runtime = function (exports) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined;
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  function define(obj, key, value) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
    return obj[key];
  }

  try {
    define({}, "");
  } catch (err) {
    define = function define(obj, key, value) {
      return obj[key] = value;
    };
  }

  function wrap(innerFn, outerFn, self, tryLocsList) {
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);
    generator._invoke = makeInvokeMethod(innerFn, self, context);
    return generator;
  }

  exports.wrap = wrap;

  function tryCatch(fn, obj, arg) {
    try {
      return {
        type: "normal",
        arg: fn.call(obj, arg)
      };
    } catch (err) {
      return {
        type: "throw",
        arg: err
      };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";
  var ContinueSentinel = {};

  function Generator() {}

  function GeneratorFunction() {}

  function GeneratorFunctionPrototype() {}

  var IteratorPrototype = {};

  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

  if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunction.displayName = define(GeneratorFunctionPrototype, toStringTagSymbol, "GeneratorFunction");

  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function (method) {
      define(prototype, method, function (arg) {
        return this._invoke(method, arg);
      });
    });
  }

  exports.isGeneratorFunction = function (genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
  };

  exports.mark = function (genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;
      define(genFun, toStringTagSymbol, "GeneratorFunction");
    }

    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  exports.awrap = function (arg) {
    return {
      __await: arg
    };
  };

  function AsyncIterator(generator, PromiseImpl) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);

      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;

        if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
          return PromiseImpl.resolve(value.__await).then(function (value) {
            invoke("next", value, resolve, reject);
          }, function (err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return PromiseImpl.resolve(value).then(function (unwrapped) {
          result.value = unwrapped;
          resolve(result);
        }, function (error) {
          return invoke("throw", error, resolve, reject);
        });
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new PromiseImpl(function (resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
    }

    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);

  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };

  exports.AsyncIterator = AsyncIterator;

  exports.async = function (innerFn, outerFn, self, tryLocsList, PromiseImpl) {
    if (PromiseImpl === void 0) PromiseImpl = Promise;
    var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
    return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
      return result.done ? result.value : iter.next();
    });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;
    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;

        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);

          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          context.sent = context._sent = context.arg;
        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);
        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;
        var record = tryCatch(innerFn, self, context);

        if (record.type === "normal") {
          state = context.done ? GenStateCompleted : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };
        } else if (record.type === "throw") {
          state = GenStateCompleted;
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];

    if (method === undefined) {
      context.delegate = null;

      if (context.method === "throw") {
        if (delegate.iterator["return"]) {
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError("The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (!info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      context[delegate.resultName] = info.value;
      context.next = delegate.nextLoc;

      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }
    } else {
      return info;
    }

    context.delegate = null;
    return ContinueSentinel;
  }

  defineIteratorMethods(Gp);
  define(Gp, toStringTagSymbol, "Generator");

  Gp[iteratorSymbol] = function () {
    return this;
  };

  Gp.toString = function () {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = {
      tryLoc: locs[0]
    };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    this.tryEntries = [{
      tryLoc: "root"
    }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  exports.keys = function (object) {
    var keys = [];

    for (var key in object) {
      keys.push(key);
    }

    keys.reverse();
    return function next() {
      while (keys.length) {
        var key = keys.pop();

        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];

      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1,
            next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;
          return next;
        };

        return next.next = next;
      }
    }

    return {
      next: doneResult
    };
  }

  exports.values = values;

  function doneResult() {
    return {
      value: undefined,
      done: true
    };
  }

  Context.prototype = {
    constructor: Context,
    reset: function reset(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;
      this.method = "next";
      this.arg = undefined;
      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },
    stop: function stop() {
      this.done = true;
      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;

      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },
    dispatchException: function dispatchException(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;

      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          context.method = "next";
          context.arg = undefined;
        }

        return !!caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }
          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },
    abrupt: function abrupt(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },
    complete: function complete(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" || record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },
    finish: function finish(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },
    "catch": function _catch(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;

          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }

          return thrown;
        }
      }

      throw new Error("illegal catch attempt");
    },
    delegateYield: function delegateYield(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };
  return exports;
}(( false ? undefined : _typeof(module)) === "object" ? module.exports : {});

try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  Function("r", "regeneratorRuntime = r")(runtime);
}
/* WEBPACK VAR INJECTION */}.call(this, __webpack_require__(4)(module)))

/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


module.exports = function (module) {
  if (!module.webpackPolyfill) {
    module.deprecate = function () {};

    module.paths = [];
    if (!module.children) module.children = [];
    Object.defineProperty(module, "loaded", {
      enumerable: true,
      get: function get() {
        return module.l;
      }
    });
    Object.defineProperty(module, "id", {
      enumerable: true,
      get: function get() {
        return module.i;
      }
    });
    module.webpackPolyfill = 1;
  }

  return module;
};

/***/ }),
/* 5 */
/***/ (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.normalizeWheelEventDirection = normalizeWheelEventDirection;
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;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

var CSS_UNITS = 96.0 / 72.0;
exports.CSS_UNITS = CSS_UNITS;
var DEFAULT_SCALE_VALUE = "auto";
exports.DEFAULT_SCALE_VALUE = DEFAULT_SCALE_VALUE;
var DEFAULT_SCALE = 1.0;
exports.DEFAULT_SCALE = DEFAULT_SCALE;
var MIN_SCALE = 0.1;
exports.MIN_SCALE = MIN_SCALE;
var MAX_SCALE = 10.0;
exports.MAX_SCALE = MAX_SCALE;
var UNKNOWN_SCALE = 0;
exports.UNKNOWN_SCALE = UNKNOWN_SCALE;
var MAX_AUTO_SCALE = 1.25;
exports.MAX_AUTO_SCALE = MAX_AUTO_SCALE;
var SCROLLBAR_PADDING = 40;
exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
var VERTICAL_PADDING = 5;
exports.VERTICAL_PADDING = VERTICAL_PADDING;
var PresentationModeState = {
  UNKNOWN: 0,
  NORMAL: 1,
  CHANGING: 2,
  FULLSCREEN: 3
};
exports.PresentationModeState = PresentationModeState;
var RendererType = {
  CANVAS: "canvas",
  SVG: "svg"
};
exports.RendererType = RendererType;
var TextLayerMode = {
  DISABLE: 0,
  ENABLE: 1,
  ENABLE_ENHANCE: 2
};
exports.TextLayerMode = TextLayerMode;
var ScrollMode = {
  UNKNOWN: -1,
  VERTICAL: 0,
  HORIZONTAL: 1,
  WRAPPED: 2
};
exports.ScrollMode = ScrollMode;
var SpreadMode = {
  UNKNOWN: -1,
  NONE: 0,
  ODD: 1,
  EVEN: 2
};
exports.SpreadMode = SpreadMode;
var AutoPrintRegExp = /\bprint\s*\(/;
exports.AutoPrintRegExp = AutoPrintRegExp;

function formatL10nValue(text, args) {
  if (!args) {
    return text;
  }

  return text.replace(/\{\{\s*(\w+)\s*\}\}/g, function (all, name) {
    return name in args ? args[name] : "{{" + name + "}}";
  });
}

var NullL10n = {
  getLanguage: function getLanguage() {
    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
      return _regenerator["default"].wrap(function _callee$(_context) {
        while (1) {
          switch (_context.prev = _context.next) {
            case 0:
              return _context.abrupt("return", "en-us");

            case 1:
            case "end":
              return _context.stop();
          }
        }
      }, _callee);
    }))();
  },
  getDirection: function getDirection() {
    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
      return _regenerator["default"].wrap(function _callee2$(_context2) {
        while (1) {
          switch (_context2.prev = _context2.next) {
            case 0:
              return _context2.abrupt("return", "ltr");

            case 1:
            case "end":
              return _context2.stop();
          }
        }
      }, _callee2);
    }))();
  },
  get: function get(property, args, fallback) {
    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3() {
      return _regenerator["default"].wrap(function _callee3$(_context3) {
        while (1) {
          switch (_context3.prev = _context3.next) {
            case 0:
              return _context3.abrupt("return", formatL10nValue(fallback, args));

            case 1:
            case "end":
              return _context3.stop();
          }
        }
      }, _callee3);
    }))();
  },
  translate: function translate(element) {
    return _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4() {
      return _regenerator["default"].wrap(function _callee4$(_context4) {
        while (1) {
          switch (_context4.prev = _context4.next) {
            case 0:
            case "end":
              return _context4.stop();
          }
        }
      }, _callee4);
    }))();
  }
};
exports.NullL10n = NullL10n;

function getOutputScale(ctx) {
  var devicePixelRatio = window.devicePixelRatio || 1;
  var backingStoreRatio = ctx.webkitBackingStorePixelRatio || ctx.mozBackingStorePixelRatio || ctx.msBackingStorePixelRatio || ctx.oBackingStorePixelRatio || ctx.backingStorePixelRatio || 1;
  var pixelRatio = devicePixelRatio / backingStoreRatio;
  return {
    sx: pixelRatio,
    sy: pixelRatio,
    scaled: pixelRatio !== 1
  };
}

function scrollIntoView(element, spot) {
  var skipOverflowHiddenElements = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var parent = element.offsetParent;

  if (!parent) {
    console.error("offsetParent is not set -- cannot scroll");
    return;
  }

  var offsetY = element.offsetTop + element.clientTop;
  var 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) {
  var debounceScroll = function debounceScroll(evt) {
    if (rAF) {
      return;
    }

    rAF = window.requestAnimationFrame(function viewAreaElementScrolled() {
      rAF = null;
      var currentX = viewAreaElement.scrollLeft;
      var lastX = state.lastX;

      if (currentX !== lastX) {
        state.right = currentX > lastX;
      }

      state.lastX = currentX;
      var currentY = viewAreaElement.scrollTop;
      var lastY = state.lastY;

      if (currentY !== lastY) {
        state.down = currentY > lastY;
      }

      state.lastY = currentY;
      callback(state);
    });
  };

  var state = {
    right: true,
    down: true,
    lastX: viewAreaElement.scrollLeft,
    lastY: viewAreaElement.scrollTop,
    _eventHandler: debounceScroll
  };
  var rAF = null;
  viewAreaElement.addEventListener("scroll", debounceScroll, true);
  return state;
}

function parseQueryString(query) {
  var parts = query.split("&");
  var params = Object.create(null);

  for (var i = 0, ii = parts.length; i < ii; ++i) {
    var param = parts[i].split("=");
    var key = param[0].toLowerCase();
    var value = param.length > 1 ? param[1] : null;
    params[decodeURIComponent(key)] = decodeURIComponent(value);
  }

  return params;
}

function binarySearchFirstItem(items, condition) {
  var minIndex = 0;
  var maxIndex = items.length - 1;

  if (maxIndex < 0 || !condition(items[maxIndex])) {
    return items.length;
  }

  if (condition(items[minIndex])) {
    return minIndex;
  }

  while (minIndex < maxIndex) {
    var currentIndex = minIndex + maxIndex >> 1;
    var 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];
  }

  var xinv = 1 / x;
  var limit = 8;

  if (xinv > limit) {
    return [1, limit];
  } else if (Math.floor(xinv) === xinv) {
    return [1, xinv];
  }

  var x_ = x > 1 ? xinv : x;
  var a = 0,
      b = 1,
      c = 1,
      d = 1;

  while (true) {
    var p = a + c,
        q = b + d;

    if (q > limit) {
      break;
    }

    if (x_ <= p / q) {
      c = p;
      d = q;
    } else {
      a = p;
      b = q;
    }
  }

  var 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) {
  var r = x % div;
  return r === 0 ? x : Math.round(x - r + div);
}

function getPageSizeInches(_ref) {
  var view = _ref.view,
      userUnit = _ref.userUnit,
      rotate = _ref.rotate;

  var _view = _slicedToArray(view, 4),
      x1 = _view[0],
      y1 = _view[1],
      x2 = _view[2],
      y2 = _view[3];

  var changeOrientation = rotate % 180 !== 0;
  var width = (x2 - x1) / 72 * userUnit;
  var height = (y2 - y1) / 72 * userUnit;
  return {
    width: changeOrientation ? height : width,
    height: changeOrientation ? width : height
  };
}

function backtrackBeforeAllVisibleElements(index, views, top) {
  if (index < 2) {
    return index;
  }

  var elt = views[index].div;
  var pageTop = elt.offsetTop + elt.clientTop;

  if (pageTop >= top) {
    elt = views[index - 1].div;
    pageTop = elt.offsetTop + elt.clientTop;
  }

  for (var 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) {
  var sortByVisibility = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
  var horizontal = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
  var top = scrollEl.scrollTop,
      bottom = top + scrollEl.clientHeight;
  var left = scrollEl.scrollLeft,
      right = left + scrollEl.clientWidth;

  function isElementBottomAfterViewTop(view) {
    var element = view.div;
    var elementBottom = element.offsetTop + element.clientTop + element.clientHeight;
    return elementBottom > top;
  }

  function isElementRightAfterViewLeft(view) {
    var element = view.div;
    var elementRight = element.offsetLeft + element.clientLeft + element.clientWidth;
    return elementRight > left;
  }

  var visible = [],
      numViews = views.length;
  var firstVisibleElementInd = numViews === 0 ? 0 : binarySearchFirstItem(views, horizontal ? isElementRightAfterViewLeft : isElementBottomAfterViewTop);

  if (firstVisibleElementInd > 0 && firstVisibleElementInd < numViews && !horizontal) {
    firstVisibleElementInd = backtrackBeforeAllVisibleElements(firstVisibleElementInd, views, top);
  }

  var lastEdge = horizontal ? right : -1;

  for (var i = firstVisibleElementInd; i < numViews; i++) {
    var view = views[i],
        element = view.div;
    var currentWidth = element.offsetLeft + element.clientLeft;
    var currentHeight = element.offsetTop + element.clientTop;
    var viewWidth = element.clientWidth,
        viewHeight = element.clientHeight;
    var viewRight = currentWidth + viewWidth;
    var 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;
    }

    var hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, viewBottom - bottom);
    var hiddenWidth = Math.max(0, left - currentWidth) + Math.max(0, viewRight - right);
    var percent = (viewHeight - hiddenHeight) * (viewWidth - hiddenWidth) * 100 / viewHeight / viewWidth | 0;
    visible.push({
      id: view.id,
      x: currentWidth,
      y: currentHeight,
      view: view,
      percent: percent
    });
  }

  var first = visible[0],
      last = visible[visible.length - 1];

  if (sortByVisibility) {
    visible.sort(function (a, b) {
      var pc = a.percent - b.percent;

      if (Math.abs(pc) > 0.001) {
        return -pc;
      }

      return a.id - b.id;
    });
  }

  return {
    first: first,
    last: last,
    views: visible
  };
}

function noContextMenuHandler(evt) {
  evt.preventDefault();
}

function isDataSchema(url) {
  var i = 0;
  var ii = url.length;

  while (i < ii && url[i].trim() === "") {
    i++;
  }

  return url.substring(i, i + 5).toLowerCase() === "data:";
}

function getPDFFileNameFromURL(url) {
  var defaultFilename = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "document.pdf";

  if (typeof url !== "string") {
    return defaultFilename;
  }

  if (isDataSchema(url)) {
    console.warn("getPDFFileNameFromURL: " + 'ignoring "data:" URL for performance reasons.');
    return defaultFilename;
  }

  var reURI = /^(?:(?:[^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
  var reFilename = /[^\/?#=]+\.pdf\b(?!.*\.pdf\b)/i;
  var splitURI = reURI.exec(url);
  var 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 normalizeWheelEventDirection(evt) {
  var delta = Math.sqrt(evt.deltaX * evt.deltaX + evt.deltaY * evt.deltaY);
  var angle = Math.atan2(evt.deltaY, evt.deltaX);

  if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
    delta = -delta;
  }

  return delta;
}

function normalizeWheelEventDelta(evt) {
  var delta = normalizeWheelEventDirection(evt);
  var MOUSE_DOM_DELTA_PIXEL_MODE = 0;
  var MOUSE_DOM_DELTA_LINE_MODE = 1;
  var MOUSE_PIXELS_PER_LINE = 30;
  var 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;
}

var WaitOnType = {
  EVENT: "event",
  TIMEOUT: "timeout"
};
exports.WaitOnType = WaitOnType;

function waitOnEventOrTimeout(_ref2) {
  var target = _ref2.target,
      name = _ref2.name,
      _ref2$delay = _ref2.delay,
      delay = _ref2$delay === void 0 ? 0 : _ref2$delay;
  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);
    }

    var eventHandler = handler.bind(null, WaitOnType.EVENT);

    if (target instanceof EventBus) {
      target._on(name, eventHandler);
    } else {
      target.addEventListener(name, eventHandler);
    }

    var timeoutHandler = handler.bind(null, WaitOnType.TIMEOUT);
    var timeout = setTimeout(timeoutHandler, delay);
  });
}

var animationStarted = new Promise(function (resolve) {
  window.requestAnimationFrame(resolve);
});
exports.animationStarted = animationStarted;

function dispatchDOMEvent(eventName) {
  var args = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
  throw new Error("Not implemented: dispatchDOMEvent");
}

var EventBus = /*#__PURE__*/function () {
  function EventBus(options) {
    _classCallCheck(this, EventBus);

    this._listeners = Object.create(null);
  }

  _createClass(EventBus, [{
    key: "on",
    value: function on(eventName, listener) {
      this._on(eventName, listener, {
        external: true
      });
    }
  }, {
    key: "off",
    value: function off(eventName, listener) {
      this._off(eventName, listener, {
        external: true
      });
    }
  }, {
    key: "dispatch",
    value: function dispatch(eventName) {
      var eventListeners = this._listeners[eventName];

      if (!eventListeners || eventListeners.length === 0) {
        return;
      }

      var args = Array.prototype.slice.call(arguments, 1);
      var externalListeners;
      eventListeners.slice(0).forEach(function (_ref3) {
        var listener = _ref3.listener,
            external = _ref3.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;
      }
    }
  }, {
    key: "_on",
    value: function _on(eventName, listener) {
      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      var eventListeners = this._listeners[eventName];

      if (!eventListeners) {
        this._listeners[eventName] = eventListeners = [];
      }

      eventListeners.push({
        listener: listener,
        external: (options && options.external) === true
      });
    }
  }, {
    key: "_off",
    value: function _off(eventName, listener) {
      var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      var eventListeners = this._listeners[eventName];

      if (!eventListeners) {
        return;
      }

      for (var i = 0, ii = eventListeners.length; i < ii; i++) {
        if (eventListeners[i].listener === listener) {
          eventListeners.splice(i, 1);
          return;
        }
      }
    }
  }]);

  return EventBus;
}();

exports.EventBus = EventBus;

function clamp(v, min, max) {
  return Math.min(Math.max(v, min), max);
}

var ProgressBar = /*#__PURE__*/function () {
  function ProgressBar(id) {
    var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
        height = _ref4.height,
        width = _ref4.width,
        units = _ref4.units;

    _classCallCheck(this, ProgressBar);

    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;
  }

  _createClass(ProgressBar, [{
    key: "_updateBar",
    value: function _updateBar() {
      if (this._indeterminate) {
        this.div.classList.add("indeterminate");
        this.div.style.width = this.width + this.units;
        return;
      }

      this.div.classList.remove("indeterminate");
      var progressSize = this.width * this._percent / 100;
      this.div.style.width = progressSize + this.units;
    }
  }, {
    key: "setWidth",
    value: function setWidth(viewer) {
      if (!viewer) {
        return;
      }

      var container = viewer.parentNode;
      var scrollbarWidth = container.offsetWidth - viewer.offsetWidth;

      if (scrollbarWidth > 0) {
        this.bar.style.width = "calc(100% - ".concat(scrollbarWidth, "px)");
      }
    }
  }, {
    key: "hide",
    value: function hide() {
      if (!this.visible) {
        return;
      }

      this.visible = false;
      this.bar.classList.add("hidden");
      document.body.classList.remove("loadingInProgress");
    }
  }, {
    key: "show",
    value: function show() {
      if (this.visible) {
        return;
      }

      this.visible = true;
      document.body.classList.add("loadingInProgress");
      this.bar.classList.remove("hidden");
    }
  }, {
    key: "percent",
    get: function get() {
      return this._percent;
    },
    set: function set(val) {
      this._indeterminate = isNaN(val);
      this._percent = clamp(val, 0, 100);

      this._updateBar();
    }
  }]);

  return ProgressBar;
}();

exports.ProgressBar = ProgressBar;

function moveToEndOfArray(arr, condition) {
  var moved = [],
      len = arr.length;
  var write = 0;

  for (var read = 0; read < len; ++read) {
    if (condition(arr[read])) {
      moved.push(arr[read]);
    } else {
      arr[write] = arr[read];
      ++write;
    }
  }

  for (var _read = 0; write < len; ++_read, ++write) {
    arr[write] = moved[_read];
  }
}

/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.OptionKind = exports.AppOptions = void 0;

var _viewer_compatibility = __webpack_require__(7);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var OptionKind = {
  VIEWER: 0x02,
  API: 0x04,
  WORKER: 0x08,
  PREFERENCE: 0x80
};
exports.OptionKind = OptionKind;
var defaultOptions = {
  cursorToolOnLoad: {
    value: 0,
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  defaultUrl: {
    value: "compressed.tracemonkey-pldi-09.pdf",
    kind: OptionKind.VIEWER
  },
  defaultZoomValue: {
    value: "",
    kind: OptionKind.VIEWER + OptionKind.PREFERENCE
  },
  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: true,
    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
  };
}
var userOptions = Object.create(null);

var AppOptions = /*#__PURE__*/function () {
  function AppOptions() {
    _classCallCheck(this, AppOptions);

    throw new Error("Cannot initialize AppOptions.");
  }

  _createClass(AppOptions, null, [{
    key: "get",
    value: function get(name) {
      var userOption = userOptions[name];

      if (userOption !== undefined) {
        return userOption;
      }

      var defaultOption = defaultOptions[name];

      if (defaultOption !== undefined) {
        return defaultOption.compatibility || defaultOption.value;
      }

      return undefined;
    }
  }, {
    key: "getAll",
    value: function getAll() {
      var kind = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
      var options = Object.create(null);

      for (var name in defaultOptions) {
        var defaultOption = defaultOptions[name];

        if (kind) {
          if ((kind & defaultOption.kind) === 0) {
            continue;
          }

          if (kind === OptionKind.PREFERENCE) {
            var 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: ".concat(name));
          }
        }

        var userOption = userOptions[name];
        options[name] = userOption !== undefined ? userOption : defaultOption.compatibility || defaultOption.value;
      }

      return options;
    }
  }, {
    key: "set",
    value: function set(name, value) {
      userOptions[name] = value;
    }
  }, {
    key: "remove",
    value: function remove(name) {
      delete userOptions[name];
    }
  }]);

  return AppOptions;
}();

exports.AppOptions = AppOptions;

/***/ }),
/* 7 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.viewerCompatibilityParams = void 0;
var compatibilityParams = Object.create(null);
{
  var userAgent = typeof navigator !== "undefined" && navigator.userAgent || "";
  var platform = typeof navigator !== "undefined" && navigator.platform || "";
  var maxTouchPoints = typeof navigator !== "undefined" && navigator.maxTouchPoints || 1;
  var isAndroid = /Android/.test(userAgent);
  var isIE = /Trident/.test(userAgent);
  var isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent) || platform === "MacIntel" && maxTouchPoints > 1;
  var isIOSChrome = /CriOS/.test(userAgent);

  (function checkOnBlobSupport() {
    if (isIE || isIOSChrome) {
      compatibilityParams.disableCreateObjectURL = true;
    }
  })();

  (function checkCanvasSizeLimitation() {
    if (isIOS || isAndroid) {
      compatibilityParams.maxCanvasPixels = 5242880;
    }
  })();
}
var viewerCompatibilityParams = Object.freeze(compatibilityParams);
exports.viewerCompatibilityParams = viewerCompatibilityParams;

/***/ }),
/* 8 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


var 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;

/***/ }),
/* 9 */
/***/ (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__(10);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var CursorTool = {
  SELECT: 0,
  HAND: 1,
  ZOOM: 2
};
exports.CursorTool = CursorTool;

var PDFCursorTools = /*#__PURE__*/function () {
  function PDFCursorTools(_ref) {
    var _this = this;

    var container = _ref.container,
        eventBus = _ref.eventBus,
        _ref$cursorToolOnLoad = _ref.cursorToolOnLoad,
        cursorToolOnLoad = _ref$cursorToolOnLoad === void 0 ? CursorTool.SELECT : _ref$cursorToolOnLoad;

    _classCallCheck(this, PDFCursorTools);

    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(function () {
      _this.switchTool(cursorToolOnLoad);
    });
  }

  _createClass(PDFCursorTools, [{
    key: "switchTool",
    value: function switchTool(tool) {
      var _this2 = this;

      if (this.activeBeforePresentationMode !== null) {
        return;
      }

      if (tool === this.active) {
        return;
      }

      var disableActiveTool = function disableActiveTool() {
        switch (_this2.active) {
          case CursorTool.SELECT:
            break;

          case CursorTool.HAND:
            _this2.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: \"".concat(tool, "\" is an unsupported value."));
          return;
      }

      this.active = tool;

      this._dispatchEvent();
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent() {
      this.eventBus.dispatch("cursortoolchanged", {
        source: this,
        tool: this.active
      });
    }
  }, {
    key: "_addEventListeners",
    value: function _addEventListeners() {
      var _this3 = this;

      this.eventBus._on("switchcursortool", function (evt) {
        _this3.switchTool(evt.tool);
      });

      this.eventBus._on("presentationmodechanged", function (evt) {
        if (evt.switchInProgress) {
          return;
        }

        var previouslyActive;

        if (evt.active) {
          previouslyActive = _this3.active;

          _this3.switchTool(CursorTool.SELECT);

          _this3.activeBeforePresentationMode = previouslyActive;
        } else {
          previouslyActive = _this3.activeBeforePresentationMode;
          _this3.activeBeforePresentationMode = null;

          _this3.switchTool(previouslyActive);
        }
      });
    }
  }, {
    key: "activeTool",
    get: function get() {
      return this.active;
    }
  }]);

  return PDFCursorTools;
}();

exports.PDFCursorTools = PDFCursorTools;

/***/ }),
/* 10 */
/***/ (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);
  var 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();
    var 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;
    }

    var xDiff = event.clientX - this.clientXStart;
    var yDiff = event.clientY - this.clientYStart;
    var scrollTop = this.scrollTopStart - yDiff;
    var 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();
  }
};
var matchesSelector;
["webkitM", "mozM", "msM", "oM", "m"].some(function (prefix) {
  var name = prefix + "atches";

  if (name in document.documentElement) {
    matchesSelector = name;
  }

  name += "Selector";

  if (name in document.documentElement) {
    matchesSelector = name;
  }

  return matchesSelector;
});
var isNotIEorIsIE10plus = !document.documentMode || document.documentMode > 9;
var chrome = window.chrome;
var isChrome15OrOpera15plus = chrome && (chrome.webstore || chrome.app);
var 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;
}

/***/ }),
/* 11 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFRenderingQueue = exports.RenderingStates = void 0;

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var CLEANUP_TIMEOUT = 30000;
var RenderingStates = {
  INITIAL: 0,
  RUNNING: 1,
  PAUSED: 2,
  FINISHED: 3
};
exports.RenderingStates = RenderingStates;

var PDFRenderingQueue = /*#__PURE__*/function () {
  function PDFRenderingQueue() {
    _classCallCheck(this, PDFRenderingQueue);

    this.pdfViewer = null;
    this.pdfThumbnailViewer = null;
    this.onIdle = null;
    this.highestPriorityPage = null;
    this.idleTimeout = null;
    this.printing = false;
    this.isThumbnailViewEnabled = false;
  }

  _createClass(PDFRenderingQueue, [{
    key: "setViewer",
    value: function setViewer(pdfViewer) {
      this.pdfViewer = pdfViewer;
    }
  }, {
    key: "setThumbnailViewer",
    value: function setThumbnailViewer(pdfThumbnailViewer) {
      this.pdfThumbnailViewer = pdfThumbnailViewer;
    }
  }, {
    key: "isHighestPriority",
    value: function isHighestPriority(view) {
      return this.highestPriorityPage === view.renderingId;
    }
  }, {
    key: "renderHighestPriority",
    value: function 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);
      }
    }
  }, {
    key: "getHighestPriority",
    value: function getHighestPriority(visible, views, scrolledDown) {
      var visibleViews = visible.views;
      var numVisible = visibleViews.length;

      if (numVisible === 0) {
        return null;
      }

      for (var i = 0; i < numVisible; ++i) {
        var view = visibleViews[i].view;

        if (!this.isViewFinished(view)) {
          return view;
        }
      }

      if (scrolledDown) {
        var nextPageIndex = visible.last.id;

        if (views[nextPageIndex] && !this.isViewFinished(views[nextPageIndex])) {
          return views[nextPageIndex];
        }
      } else {
        var previousPageIndex = visible.first.id - 2;

        if (views[previousPageIndex] && !this.isViewFinished(views[previousPageIndex])) {
          return views[previousPageIndex];
        }
      }

      return null;
    }
  }, {
    key: "isViewFinished",
    value: function isViewFinished(view) {
      return view.renderingState === RenderingStates.FINISHED;
    }
  }, {
    key: "renderView",
    value: function renderView(view) {
      var _this = this;

      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"](function () {
            _this.renderHighestPriority();
          })["catch"](function (reason) {
            console.error("renderView: \"".concat(reason, "\""));
          });
          break;
      }

      return true;
    }
  }]);

  return PDFRenderingQueue;
}();

exports.PDFRenderingQueue = PDFRenderingQueue;

/***/ }),
/* 12 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFSidebar = exports.SidebarView = void 0;

var _ui_utils = __webpack_require__(5);

var _pdf_rendering_queue = __webpack_require__(11);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var UI_NOTIFICATION_CLASS = "pdfSidebarNotification";
var SidebarView = {
  UNKNOWN: -1,
  NONE: 0,
  THUMBS: 1,
  OUTLINE: 2,
  ATTACHMENTS: 3,
  LAYERS: 4
};
exports.SidebarView = SidebarView;

var PDFSidebar = /*#__PURE__*/function () {
  function PDFSidebar(_ref) {
    var elements = _ref.elements,
        pdfViewer = _ref.pdfViewer,
        pdfThumbnailViewer = _ref.pdfThumbnailViewer,
        eventBus = _ref.eventBus,
        _ref$l10n = _ref.l10n,
        l10n = _ref$l10n === void 0 ? _ui_utils.NullL10n : _ref$l10n,
        _ref$disableNotificat = _ref.disableNotification,
        disableNotification = _ref$disableNotificat === void 0 ? false : _ref$disableNotificat;

    _classCallCheck(this, PDFSidebar);

    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.layersButton = elements.layersButton;
    this.thumbnailView = elements.thumbnailView;
    this.outlineView = elements.outlineView;
    this.attachmentsView = elements.attachmentsView;
    this.layersView = elements.layersView;
    this.eventBus = eventBus;
    this.l10n = l10n;
    this._disableNotification = disableNotification;

    this._addEventListeners();
  }

  _createClass(PDFSidebar, [{
    key: "reset",
    value: function reset() {
      this.isInitialViewSet = false;

      this._hideUINotification(null);

      this.switchView(SidebarView.THUMBS);
      this.outlineButton.disabled = false;
      this.attachmentsButton.disabled = false;
      this.layersButton.disabled = false;
    }
  }, {
    key: "setInitialView",
    value: function setInitialView() {
      var view = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 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();
      }
    }
  }, {
    key: "switchView",
    value: function switchView(view) {
      var forceOpen = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      this._switchView(view, forceOpen);
    }
  }, {
    key: "_switchView",
    value: function _switchView(view) {
      var forceOpen = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var isViewChanged = view !== this.active;
      var 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;

        case SidebarView.LAYERS:
          if (this.layersButton.disabled) {
            return false;
          }

          break;

        default:
          console.error("PDFSidebar._switchView: \"".concat(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.layersButton.classList.toggle("toggled", view === SidebarView.LAYERS);
      this.thumbnailView.classList.toggle("hidden", view !== SidebarView.THUMBS);
      this.outlineView.classList.toggle("hidden", view !== SidebarView.OUTLINE);
      this.attachmentsView.classList.toggle("hidden", view !== SidebarView.ATTACHMENTS);
      this.layersView.classList.toggle("hidden", view !== SidebarView.LAYERS);

      if (forceOpen && !this.isOpen) {
        this.open();
        return true;
      }

      if (shouldForceRendering) {
        this._updateThumbnailViewer();

        this._forceRendering();
      }

      if (isViewChanged) {
        this._dispatchEvent();
      }

      this._hideUINotification(this.active);

      return isViewChanged;
    }
  }, {
    key: "open",
    value: function 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);
    }
  }, {
    key: "close",
    value: function 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();
    }
  }, {
    key: "toggle",
    value: function toggle() {
      if (this.isOpen) {
        this.close();
      } else {
        this.open();
      }
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent() {
      this.eventBus.dispatch("sidebarviewchanged", {
        source: this,
        view: this.visibleView
      });
    }
  }, {
    key: "_forceRendering",
    value: function _forceRendering() {
      if (this.onToggled) {
        this.onToggled();
      } else {
        this.pdfViewer.forceRendering();
        this.pdfThumbnailViewer.forceRendering();
      }
    }
  }, {
    key: "_updateThumbnailViewer",
    value: function _updateThumbnailViewer() {
      var pdfViewer = this.pdfViewer,
          pdfThumbnailViewer = this.pdfThumbnailViewer;
      var pagesCount = pdfViewer.pagesCount;

      for (var pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
        var pageView = pdfViewer.getPageView(pageIndex);

        if (pageView && pageView.renderingState === _pdf_rendering_queue.RenderingStates.FINISHED) {
          var thumbnailView = pdfThumbnailViewer.getThumbnail(pageIndex);
          thumbnailView.setImage(pageView);
        }
      }

      pdfThumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber);
    }
  }, {
    key: "_showUINotification",
    value: function _showUINotification(view) {
      var _this = this;

      if (this._disableNotification) {
        return;
      }

      this.l10n.get("toggle_sidebar_notification2.title", null, "Toggle Sidebar (document contains outline/attachments/layers)").then(function (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;

        case SidebarView.LAYERS:
          this.layersButton.classList.add(UI_NOTIFICATION_CLASS);
          break;
      }
    }
  }, {
    key: "_hideUINotification",
    value: function _hideUINotification(view) {
      var _this2 = this;

      if (this._disableNotification) {
        return;
      }

      var removeNotification = function removeNotification(sidebarView) {
        switch (sidebarView) {
          case SidebarView.OUTLINE:
            _this2.outlineButton.classList.remove(UI_NOTIFICATION_CLASS);

            break;

          case SidebarView.ATTACHMENTS:
            _this2.attachmentsButton.classList.remove(UI_NOTIFICATION_CLASS);

            break;

          case SidebarView.LAYERS:
            _this2.layersButton.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(function (msg) {
        _this2.toggleButton.title = msg;
      });
    }
  }, {
    key: "_addEventListeners",
    value: function _addEventListeners() {
      var _this3 = this;

      this.viewerContainer.addEventListener("transitionend", function (evt) {
        if (evt.target === _this3.viewerContainer) {
          _this3.outerContainer.classList.remove("sidebarMoving");
        }
      });
      this.toggleButton.addEventListener("click", function () {
        _this3.toggle();
      });
      this.thumbnailButton.addEventListener("click", function () {
        _this3.switchView(SidebarView.THUMBS);
      });
      this.outlineButton.addEventListener("click", function () {
        _this3.switchView(SidebarView.OUTLINE);
      });
      this.outlineButton.addEventListener("dblclick", function () {
        _this3.eventBus.dispatch("toggleoutlinetree", {
          source: _this3
        });
      });
      this.attachmentsButton.addEventListener("click", function () {
        _this3.switchView(SidebarView.ATTACHMENTS);
      });
      this.layersButton.addEventListener("click", function () {
        _this3.switchView(SidebarView.LAYERS);
      });
      this.layersButton.addEventListener("dblclick", function () {
        _this3.eventBus.dispatch("resetlayers", {
          source: _this3
        });
      });

      var onTreeLoaded = function onTreeLoaded(count, button, view) {
        button.disabled = !count;

        if (count) {
          _this3._showUINotification(view);
        } else if (_this3.active === view) {
          _this3.switchView(SidebarView.THUMBS);
        }
      };

      this.eventBus._on("outlineloaded", function (evt) {
        onTreeLoaded(evt.outlineCount, _this3.outlineButton, SidebarView.OUTLINE);
      });

      this.eventBus._on("attachmentsloaded", function (evt) {
        onTreeLoaded(evt.attachmentsCount, _this3.attachmentsButton, SidebarView.ATTACHMENTS);
      });

      this.eventBus._on("layersloaded", function (evt) {
        onTreeLoaded(evt.layersCount, _this3.layersButton, SidebarView.LAYERS);
      });

      this.eventBus._on("presentationmodechanged", function (evt) {
        if (!evt.active && !evt.switchInProgress && _this3.isThumbnailViewVisible) {
          _this3._updateThumbnailViewer();
        }
      });
    }
  }, {
    key: "visibleView",
    get: function get() {
      return this.isOpen ? this.active : SidebarView.NONE;
    }
  }, {
    key: "isThumbnailViewVisible",
    get: function get() {
      return this.isOpen && this.active === SidebarView.THUMBS;
    }
  }, {
    key: "isOutlineViewVisible",
    get: function get() {
      return this.isOpen && this.active === SidebarView.OUTLINE;
    }
  }, {
    key: "isAttachmentsViewVisible",
    get: function get() {
      return this.isOpen && this.active === SidebarView.ATTACHMENTS;
    }
  }, {
    key: "isLayersViewVisible",
    get: function get() {
      return this.isOpen && this.active === SidebarView.LAYERS;
    }
  }]);

  return PDFSidebar;
}();

exports.PDFSidebar = PDFSidebar;

/***/ }),
/* 13 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.OverlayManager = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var OverlayManager = /*#__PURE__*/function () {
  function OverlayManager() {
    _classCallCheck(this, OverlayManager);

    this._overlays = {};
    this._active = null;
    this._keyDownBound = this._keyDown.bind(this);
  }

  _createClass(OverlayManager, [{
    key: "register",
    value: function () {
      var _register = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee(name, element) {
        var callerCloseMethod,
            canForceClose,
            container,
            _args = arguments;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                callerCloseMethod = _args.length > 2 && _args[2] !== undefined ? _args[2] : null;
                canForceClose = _args.length > 3 && _args[3] !== undefined ? _args[3] : false;

                if (!(!name || !element || !(container = element.parentNode))) {
                  _context.next = 6;
                  break;
                }

                throw new Error("Not enough parameters.");

              case 6:
                if (!this._overlays[name]) {
                  _context.next = 8;
                  break;
                }

                throw new Error("The overlay is already registered.");

              case 8:
                this._overlays[name] = {
                  element: element,
                  container: container,
                  callerCloseMethod: callerCloseMethod,
                  canForceClose: canForceClose
                };

              case 9:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function register(_x, _x2) {
        return _register.apply(this, arguments);
      }

      return register;
    }()
  }, {
    key: "unregister",
    value: function () {
      var _unregister = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2(name) {
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (this._overlays[name]) {
                  _context2.next = 4;
                  break;
                }

                throw new Error("The overlay does not exist.");

              case 4:
                if (!(this._active === name)) {
                  _context2.next = 6;
                  break;
                }

                throw new Error("The overlay cannot be removed while it is active.");

              case 6:
                delete this._overlays[name];

              case 7:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function unregister(_x3) {
        return _unregister.apply(this, arguments);
      }

      return unregister;
    }()
  }, {
    key: "open",
    value: function () {
      var _open = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3(name) {
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                if (this._overlays[name]) {
                  _context3.next = 4;
                  break;
                }

                throw new Error("The overlay does not exist.");

              case 4:
                if (!this._active) {
                  _context3.next = 14;
                  break;
                }

                if (!this._overlays[name].canForceClose) {
                  _context3.next = 9;
                  break;
                }

                this._closeThroughCaller();

                _context3.next = 14;
                break;

              case 9:
                if (!(this._active === name)) {
                  _context3.next = 13;
                  break;
                }

                throw new Error("The overlay is already active.");

              case 13:
                throw new Error("Another overlay is currently active.");

              case 14:
                this._active = name;

                this._overlays[this._active].element.classList.remove("hidden");

                this._overlays[this._active].container.classList.remove("hidden");

                window.addEventListener("keydown", this._keyDownBound);

              case 18:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function open(_x4) {
        return _open.apply(this, arguments);
      }

      return open;
    }()
  }, {
    key: "close",
    value: function () {
      var _close = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4(name) {
        return _regenerator["default"].wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                if (this._overlays[name]) {
                  _context4.next = 4;
                  break;
                }

                throw new Error("The overlay does not exist.");

              case 4:
                if (this._active) {
                  _context4.next = 8;
                  break;
                }

                throw new Error("The overlay is currently not active.");

              case 8:
                if (!(this._active !== name)) {
                  _context4.next = 10;
                  break;
                }

                throw new Error("Another overlay is currently active.");

              case 10:
                this._overlays[this._active].container.classList.add("hidden");

                this._overlays[this._active].element.classList.add("hidden");

                this._active = null;
                window.removeEventListener("keydown", this._keyDownBound);

              case 14:
              case "end":
                return _context4.stop();
            }
          }
        }, _callee4, this);
      }));

      function close(_x5) {
        return _close.apply(this, arguments);
      }

      return close;
    }()
  }, {
    key: "_keyDown",
    value: function _keyDown(evt) {
      if (this._active && evt.keyCode === 27) {
        this._closeThroughCaller();

        evt.preventDefault();
      }
    }
  }, {
    key: "_closeThroughCaller",
    value: function _closeThroughCaller() {
      if (this._overlays[this._active].callerCloseMethod) {
        this._overlays[this._active].callerCloseMethod();
      }

      if (this._active) {
        this.close(this._active);
      }
    }
  }, {
    key: "active",
    get: function get() {
      return this._active;
    }
  }]);

  return OverlayManager;
}();

exports.OverlayManager = OverlayManager;

/***/ }),
/* 14 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PasswordPrompt = void 0;

var _ui_utils = __webpack_require__(5);

var _pdfjsLib = __webpack_require__(8);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var PasswordPrompt = /*#__PURE__*/function () {
  function PasswordPrompt(options, overlayManager) {
    var _this = this;

    var l10n = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _ui_utils.NullL10n;

    _classCallCheck(this, PasswordPrompt);

    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", function (e) {
      if (e.keyCode === 13) {
        _this.verify();
      }
    });
    this.overlayManager.register(this.overlayName, this.container, this.close.bind(this), true);
  }

  _createClass(PasswordPrompt, [{
    key: "open",
    value: function open() {
      var _this2 = this;

      this.overlayManager.open(this.overlayName).then(function () {
        _this2.input.focus();

        var promptString;

        if (_this2.reason === _pdfjsLib.PasswordResponses.INCORRECT_PASSWORD) {
          promptString = _this2.l10n.get("password_invalid", null, "Invalid password. Please try again.");
        } else {
          promptString = _this2.l10n.get("password_label", null, "Enter the password to open this PDF file.");
        }

        promptString.then(function (msg) {
          _this2.label.textContent = msg;
        });
      });
    }
  }, {
    key: "close",
    value: function close() {
      var _this3 = this;

      this.overlayManager.close(this.overlayName).then(function () {
        _this3.input.value = "";
      });
    }
  }, {
    key: "verify",
    value: function verify() {
      var password = this.input.value;

      if (password && password.length > 0) {
        this.close();
        this.updateCallback(password);
      }
    }
  }, {
    key: "setUpdateCallback",
    value: function setUpdateCallback(updateCallback, reason) {
      this.updateCallback = updateCallback;
      this.reason = reason;
    }
  }]);

  return PasswordPrompt;
}();

exports.PasswordPrompt = PasswordPrompt;

/***/ }),
/* 15 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFAttachmentViewer = void 0;

var _pdfjsLib = __webpack_require__(8);

var _base_tree_viewer = __webpack_require__(16);

var _viewer_compatibility = __webpack_require__(7);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var PdfFileRegExp = /\.pdf$/i;

var PDFAttachmentViewer = /*#__PURE__*/function (_BaseTreeViewer) {
  _inherits(PDFAttachmentViewer, _BaseTreeViewer);

  var _super = _createSuper(PDFAttachmentViewer);

  function PDFAttachmentViewer(options) {
    var _this;

    _classCallCheck(this, PDFAttachmentViewer);

    _this = _super.call(this, options);
    _this.downloadManager = options.downloadManager;

    _this.eventBus._on("fileattachmentannotation", _this._appendAttachment.bind(_assertThisInitialized(_this)));

    return _this;
  }

  _createClass(PDFAttachmentViewer, [{
    key: "reset",
    value: function reset() {
      var keepRenderedCapability = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      _get(_getPrototypeOf(PDFAttachmentViewer.prototype), "reset", this).call(this);

      this._attachments = null;

      if (!keepRenderedCapability) {
        this._renderedCapability = (0, _pdfjsLib.createPromiseCapability)();
      }

      if (this._pendingDispatchEvent) {
        clearTimeout(this._pendingDispatchEvent);
      }

      this._pendingDispatchEvent = null;
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent(attachmentsCount) {
      var _this2 = this;

      this._renderedCapability.resolve();

      if (this._pendingDispatchEvent) {
        clearTimeout(this._pendingDispatchEvent);
        this._pendingDispatchEvent = null;
      }

      if (attachmentsCount === 0) {
        this._pendingDispatchEvent = setTimeout(function () {
          _this2.eventBus.dispatch("attachmentsloaded", {
            source: _this2,
            attachmentsCount: 0
          });

          _this2._pendingDispatchEvent = null;
        });
        return;
      }

      this.eventBus.dispatch("attachmentsloaded", {
        source: this,
        attachmentsCount: attachmentsCount
      });
    }
  }, {
    key: "_bindPdfLink",
    value: function _bindPdfLink(element, _ref) {
      var _this3 = this;

      var content = _ref.content,
          filename = _ref.filename;
      var blobUrl;

      element.onclick = function () {
        if (!blobUrl) {
          blobUrl = URL.createObjectURL(new Blob([content], {
            type: "application/pdf"
          }));
        }

        var viewerUrl;
        viewerUrl = "?file=" + encodeURIComponent(blobUrl + "#" + filename);

        try {
          window.open(viewerUrl);
        } catch (ex) {
          console.error("_bindPdfLink: ".concat(ex));
          URL.revokeObjectURL(blobUrl);
          blobUrl = null;

          _this3.downloadManager.downloadData(content, filename, "application/pdf");
        }

        return false;
      };
    }
  }, {
    key: "_bindLink",
    value: function _bindLink(element, _ref2) {
      var _this4 = this;

      var content = _ref2.content,
          filename = _ref2.filename;

      element.onclick = function () {
        var contentType = PdfFileRegExp.test(filename) ? "application/pdf" : "";

        _this4.downloadManager.downloadData(content, filename, contentType);

        return false;
      };
    }
  }, {
    key: "render",
    value: function render(_ref3) {
      var attachments = _ref3.attachments,
          _ref3$keepRenderedCap = _ref3.keepRenderedCapability,
          keepRenderedCapability = _ref3$keepRenderedCap === void 0 ? false : _ref3$keepRenderedCap;

      if (this._attachments) {
        this.reset(keepRenderedCapability);
      }

      this._attachments = attachments || null;

      if (!attachments) {
        this._dispatchEvent(0);

        return;
      }

      var names = Object.keys(attachments).sort(function (a, b) {
        return a.toLowerCase().localeCompare(b.toLowerCase());
      });
      var fragment = document.createDocumentFragment();
      var attachmentsCount = 0;

      var _iterator = _createForOfIteratorHelper(names),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var name = _step.value;
          var item = attachments[name];
          var filename = (0, _pdfjsLib.getFilenameFromUrl)(item.filename);
          var div = document.createElement("div");
          div.className = "treeItem";
          var element = document.createElement("a");

          if (PdfFileRegExp.test(filename) && !_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
            this._bindPdfLink(element, {
              content: item.content,
              filename: filename
            });
          } else {
            this._bindLink(element, {
              content: item.content,
              filename: filename
            });
          }

          element.textContent = this._normalizeTextContent(filename);
          div.appendChild(element);
          fragment.appendChild(div);
          attachmentsCount++;
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      this.container.appendChild(fragment);

      this._dispatchEvent(attachmentsCount);
    }
  }, {
    key: "_appendAttachment",
    value: function _appendAttachment(_ref4) {
      var _this5 = this;

      var id = _ref4.id,
          filename = _ref4.filename,
          content = _ref4.content;
      var renderedPromise = this._renderedCapability.promise;
      renderedPromise.then(function () {
        if (renderedPromise !== _this5._renderedCapability.promise) {
          return;
        }

        var attachments = _this5._attachments;

        if (!attachments) {
          attachments = Object.create(null);
        } else {
          for (var name in attachments) {
            if (id === name) {
              return;
            }
          }
        }

        attachments[id] = {
          filename: filename,
          content: content
        };

        _this5.render({
          attachments: attachments,
          keepRenderedCapability: true
        });
      });
    }
  }]);

  return PDFAttachmentViewer;
}(_base_tree_viewer.BaseTreeViewer);

exports.PDFAttachmentViewer = PDFAttachmentViewer;

/***/ }),
/* 16 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BaseTreeViewer = void 0;

var _pdfjsLib = __webpack_require__(8);

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var BaseTreeViewer = /*#__PURE__*/function () {
  function BaseTreeViewer(options) {
    _classCallCheck(this, BaseTreeViewer);

    if (this.constructor === BaseTreeViewer) {
      throw new Error("Cannot initialize BaseTreeViewer.");
    }

    this.container = options.container;
    this.eventBus = options.eventBus;
    this.reset();
  }

  _createClass(BaseTreeViewer, [{
    key: "reset",
    value: function reset() {
      this._lastToggleIsShow = true;
      this.container.textContent = "";
      this.container.classList.remove("treeWithDeepNesting");
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent(count) {
      throw new Error("Not implemented: _dispatchEvent");
    }
  }, {
    key: "_bindLink",
    value: function _bindLink(element, params) {
      throw new Error("Not implemented: _bindLink");
    }
  }, {
    key: "_normalizeTextContent",
    value: function _normalizeTextContent(str) {
      return (0, _pdfjsLib.removeNullCharacters)(str) || "\u2013";
    }
  }, {
    key: "_addToggleButton",
    value: function _addToggleButton(div) {
      var _this = this;

      var hidden = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var toggler = document.createElement("div");
      toggler.className = "treeItemToggler";

      if (hidden) {
        toggler.classList.add("treeItemsHidden");
      }

      toggler.onclick = function (evt) {
        evt.stopPropagation();
        toggler.classList.toggle("treeItemsHidden");

        if (evt.shiftKey) {
          var shouldShowAll = !toggler.classList.contains("treeItemsHidden");

          _this._toggleTreeItem(div, shouldShowAll);
        }
      };

      div.insertBefore(toggler, div.firstChild);
    }
  }, {
    key: "_toggleTreeItem",
    value: function _toggleTreeItem(root) {
      var show = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      this._lastToggleIsShow = show;

      var _iterator = _createForOfIteratorHelper(root.querySelectorAll(".treeItemToggler")),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var toggler = _step.value;
          toggler.classList.toggle("treeItemsHidden", !show);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    }
  }, {
    key: "_toggleAllTreeItems",
    value: function _toggleAllTreeItems() {
      this._toggleTreeItem(this.container, !this._lastToggleIsShow);
    }
  }, {
    key: "render",
    value: function render(params) {
      throw new Error("Not implemented: render");
    }
  }]);

  return BaseTreeViewer;
}();

exports.BaseTreeViewer = BaseTreeViewer;

/***/ }),
/* 17 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFDocumentProperties = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _pdfjsLib = __webpack_require__(8);

var _ui_utils = __webpack_require__(5);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_FIELD_CONTENT = "-";
var NON_METRIC_LOCALES = ["en-us", "en-lr", "my"];
var US_PAGE_NAMES = {
  "8.5x11": "Letter",
  "8.5x14": "Legal"
};
var METRIC_PAGE_NAMES = {
  "297x420": "A3",
  "210x297": "A4"
};

function getPageName(size, isPortrait, pageNames) {
  var width = isPortrait ? size.width : size.height;
  var height = isPortrait ? size.height : size.width;
  return pageNames["".concat(width, "x").concat(height)];
}

var PDFDocumentProperties = /*#__PURE__*/function () {
  function PDFDocumentProperties(_ref, overlayManager, eventBus) {
    var _this = this;

    var overlayName = _ref.overlayName,
        fields = _ref.fields,
        container = _ref.container,
        closeButton = _ref.closeButton;
    var l10n = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : _ui_utils.NullL10n;

    _classCallCheck(this, PDFDocumentProperties);

    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", function (evt) {
      _this._currentPageNumber = evt.pageNumber;
    });

    eventBus._on("rotationchanging", function (evt) {
      _this._pagesRotation = evt.pagesRotation;
    });

    this._isNonMetricLocale = true;
    l10n.getLanguage().then(function (locale) {
      _this._isNonMetricLocale = NON_METRIC_LOCALES.includes(locale);
    });
  }

  _createClass(PDFDocumentProperties, [{
    key: "open",
    value: function open() {
      var _this2 = this;

      var freezeFieldData = function freezeFieldData(data) {
        Object.defineProperty(_this2, "fieldData", {
          value: Object.freeze(data),
          writable: false,
          enumerable: true,
          configurable: true
        });
      };

      Promise.all([this.overlayManager.open(this.overlayName), this._dataAvailableCapability.promise]).then(function () {
        var currentPageNumber = _this2._currentPageNumber;
        var pagesRotation = _this2._pagesRotation;

        if (_this2.fieldData && currentPageNumber === _this2.fieldData._currentPageNumber && pagesRotation === _this2.fieldData._pagesRotation) {
          _this2._updateUI();

          return;
        }

        _this2.pdfDocument.getMetadata().then(function (_ref2) {
          var info = _ref2.info,
              metadata = _ref2.metadata,
              contentDispositionFilename = _ref2.contentDispositionFilename;
          return Promise.all([info, metadata, contentDispositionFilename || (0, _ui_utils.getPDFFileNameFromURL)(_this2.url), _this2._parseFileSize(_this2.maybeFileSize), _this2._parseDate(info.CreationDate), _this2._parseDate(info.ModDate), _this2.pdfDocument.getPage(currentPageNumber).then(function (pdfPage) {
            return _this2._parsePageSize((0, _ui_utils.getPageSizeInches)(pdfPage), pagesRotation);
          }), _this2._parseLinearization(info.IsLinearized)]);
        }).then(function (_ref3) {
          var _ref4 = _slicedToArray(_ref3, 8),
              info = _ref4[0],
              metadata = _ref4[1],
              fileName = _ref4[2],
              fileSize = _ref4[3],
              creationDate = _ref4[4],
              modDate = _ref4[5],
              pageSize = _ref4[6],
              isLinearized = _ref4[7];

          freezeFieldData({
            fileName: fileName,
            fileSize: fileSize,
            title: info.Title,
            author: info.Author,
            subject: info.Subject,
            keywords: info.Keywords,
            creationDate: creationDate,
            modificationDate: modDate,
            creator: info.Creator,
            producer: info.Producer,
            version: info.PDFFormatVersion,
            pageCount: _this2.pdfDocument.numPages,
            pageSize: pageSize,
            linearized: isLinearized,
            _currentPageNumber: currentPageNumber,
            _pagesRotation: pagesRotation
          });

          _this2._updateUI();

          return _this2.pdfDocument.getDownloadInfo();
        }).then(function (_ref5) {
          var length = _ref5.length;
          _this2.maybeFileSize = length;
          return _this2._parseFileSize(length);
        }).then(function (fileSize) {
          if (fileSize === _this2.fieldData.fileSize) {
            return;
          }

          var data = Object.assign(Object.create(null), _this2.fieldData);
          data.fileSize = fileSize;
          freezeFieldData(data);

          _this2._updateUI();
        });
      });
    }
  }, {
    key: "close",
    value: function close() {
      this.overlayManager.close(this.overlayName);
    }
  }, {
    key: "setDocument",
    value: function setDocument(pdfDocument) {
      var url = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

      if (this.pdfDocument) {
        this._reset();

        this._updateUI(true);
      }

      if (!pdfDocument) {
        return;
      }

      this.pdfDocument = pdfDocument;
      this.url = url;

      this._dataAvailableCapability.resolve();
    }
  }, {
    key: "setFileSize",
    value: function setFileSize(fileSize) {
      if (Number.isInteger(fileSize) && fileSize > 0) {
        this.maybeFileSize = fileSize;
      }
    }
  }, {
    key: "_reset",
    value: function _reset() {
      this.pdfDocument = null;
      this.url = null;
      this.maybeFileSize = 0;
      delete this.fieldData;
      this._dataAvailableCapability = (0, _pdfjsLib.createPromiseCapability)();
      this._currentPageNumber = 1;
      this._pagesRotation = 0;
    }
  }, {
    key: "_updateUI",
    value: function _updateUI() {
      var reset = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (reset || !this.fieldData) {
        for (var id in this.fields) {
          this.fields[id].textContent = DEFAULT_FIELD_CONTENT;
        }

        return;
      }

      if (this.overlayManager.active !== this.overlayName) {
        return;
      }

      for (var _id in this.fields) {
        var content = this.fieldData[_id];
        this.fields[_id].textContent = content || content === 0 ? content : DEFAULT_FIELD_CONTENT;
      }
    }
  }, {
    key: "_parseFileSize",
    value: function () {
      var _parseFileSize2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
        var fileSize,
            kb,
            _args = arguments;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                fileSize = _args.length > 0 && _args[0] !== undefined ? _args[0] : 0;
                kb = fileSize / 1024;

                if (kb) {
                  _context.next = 6;
                  break;
                }

                return _context.abrupt("return", undefined);

              case 6:
                if (!(kb < 1024)) {
                  _context.next = 8;
                  break;
                }

                return _context.abrupt("return", this.l10n.get("document_properties_kb", {
                  size_kb: (+kb.toPrecision(3)).toLocaleString(),
                  size_b: fileSize.toLocaleString()
                }, "{{size_kb}} KB ({{size_b}} bytes)"));

              case 8:
                return _context.abrupt("return", this.l10n.get("document_properties_mb", {
                  size_mb: (+(kb / 1024).toPrecision(3)).toLocaleString(),
                  size_b: fileSize.toLocaleString()
                }, "{{size_mb}} MB ({{size_b}} bytes)"));

              case 9:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function _parseFileSize() {
        return _parseFileSize2.apply(this, arguments);
      }

      return _parseFileSize;
    }()
  }, {
    key: "_parsePageSize",
    value: function () {
      var _parsePageSize2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2(pageSizeInches, pagesRotation) {
        var _this3 = this;

        var isPortrait, sizeInches, sizeMillimeters, pageName, rawName, exactMillimeters, intMillimeters;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (pageSizeInches) {
                  _context2.next = 2;
                  break;
                }

                return _context2.abrupt("return", undefined);

              case 2:
                if (pagesRotation % 180 !== 0) {
                  pageSizeInches = {
                    width: pageSizeInches.height,
                    height: pageSizeInches.width
                  };
                }

                isPortrait = (0, _ui_utils.isPortraitOrientation)(pageSizeInches);
                sizeInches = {
                  width: Math.round(pageSizeInches.width * 100) / 100,
                  height: Math.round(pageSizeInches.height * 100) / 100
                };
                sizeMillimeters = {
                  width: Math.round(pageSizeInches.width * 25.4 * 10) / 10,
                  height: Math.round(pageSizeInches.height * 25.4 * 10) / 10
                };
                pageName = null;
                rawName = getPageName(sizeInches, isPortrait, US_PAGE_NAMES) || getPageName(sizeMillimeters, isPortrait, METRIC_PAGE_NAMES);

                if (!rawName && !(Number.isInteger(sizeMillimeters.width) && Number.isInteger(sizeMillimeters.height))) {
                  exactMillimeters = {
                    width: pageSizeInches.width * 25.4,
                    height: pageSizeInches.height * 25.4
                  };
                  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 _context2.abrupt("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(function (_ref6) {
                  var _ref7 = _slicedToArray(_ref6, 4),
                      _ref7$ = _ref7[0],
                      width = _ref7$.width,
                      height = _ref7$.height,
                      unit = _ref7[1],
                      name = _ref7[2],
                      orientation = _ref7[3];

                  return _this3.l10n.get("document_properties_page_size_dimension_" + (name ? "name_" : "") + "string", {
                    width: width.toLocaleString(),
                    height: height.toLocaleString(),
                    unit: unit,
                    name: name,
                    orientation: orientation
                  }, "{{width}} × {{height}} {{unit}} (" + (name ? "{{name}}, " : "") + "{{orientation}})");
                }));

              case 11:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function _parsePageSize(_x, _x2) {
        return _parsePageSize2.apply(this, arguments);
      }

      return _parsePageSize;
    }()
  }, {
    key: "_parseDate",
    value: function () {
      var _parseDate2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3(inputDate) {
        var dateObject;
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                dateObject = _pdfjsLib.PDFDateString.toDateObject(inputDate);

                if (dateObject) {
                  _context3.next = 3;
                  break;
                }

                return _context3.abrupt("return", undefined);

              case 3:
                return _context3.abrupt("return", this.l10n.get("document_properties_date_string", {
                  date: dateObject.toLocaleDateString(),
                  time: dateObject.toLocaleTimeString()
                }, "{{date}}, {{time}}"));

              case 4:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function _parseDate(_x3) {
        return _parseDate2.apply(this, arguments);
      }

      return _parseDate;
    }()
  }, {
    key: "_parseLinearization",
    value: function _parseLinearization(isLinearized) {
      return this.l10n.get("document_properties_linearized_" + (isLinearized ? "yes" : "no"), null, isLinearized ? "Yes" : "No");
    }
  }]);

  return PDFDocumentProperties;
}();

exports.PDFDocumentProperties = PDFDocumentProperties;

/***/ }),
/* 18 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFFindBar = void 0;

var _pdf_find_controller = __webpack_require__(19);

var _ui_utils = __webpack_require__(5);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var MATCHES_COUNT_LIMIT = 1000;

var PDFFindBar = /*#__PURE__*/function () {
  function PDFFindBar(options, eventBus) {
    var _this = this;

    var l10n = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _ui_utils.NullL10n;

    _classCallCheck(this, PDFFindBar);

    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", function () {
      _this.toggle();
    });
    this.findField.addEventListener("input", function () {
      _this.dispatchEvent("");
    });
    this.bar.addEventListener("keydown", function (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", function () {
      _this.dispatchEvent("again", true);
    });
    this.findNextButton.addEventListener("click", function () {
      _this.dispatchEvent("again", false);
    });
    this.highlightAll.addEventListener("click", function () {
      _this.dispatchEvent("highlightallchange");
    });
    this.caseSensitive.addEventListener("click", function () {
      _this.dispatchEvent("casesensitivitychange");
    });
    this.entireWord.addEventListener("click", function () {
      _this.dispatchEvent("entirewordchange");
    });

    this.eventBus._on("resize", this._adjustWidth.bind(this));
  }

  _createClass(PDFFindBar, [{
    key: "reset",
    value: function reset() {
      this.updateUIState();
    }
  }, {
    key: "dispatchEvent",
    value: function dispatchEvent(type, findPrev) {
      this.eventBus.dispatch("find", {
        source: this,
        type: type,
        query: this.findField.value,
        phraseSearch: true,
        caseSensitive: this.caseSensitive.checked,
        entireWord: this.entireWord.checked,
        highlightAll: this.highlightAll.checked,
        findPrevious: findPrev
      });
    }
  }, {
    key: "updateUIState",
    value: function updateUIState(state, previous, matchesCount) {
      var _this2 = this;

      var notFound = false;
      var findMsg = "";
      var 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(function (msg) {
        _this2.findMsg.textContent = msg;

        _this2._adjustWidth();
      });
      this.updateResultsCount(matchesCount);
    }
  }, {
    key: "updateResultsCount",
    value: function updateResultsCount() {
      var _this3 = this;

      var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          _ref$current = _ref.current,
          current = _ref$current === void 0 ? 0 : _ref$current,
          _ref$total = _ref.total,
          total = _ref$total === void 0 ? 0 : _ref$total;

      if (!this.findResultsCount) {
        return;
      }

      var limit = MATCHES_COUNT_LIMIT;
      var matchesCountMsg = "";

      if (total > 0) {
        if (total > limit) {
          matchesCountMsg = this.l10n.get("find_match_count_limit", {
            limit: limit
          }, "More than {{limit}} match" + (limit !== 1 ? "es" : ""));
        } else {
          matchesCountMsg = this.l10n.get("find_match_count", {
            current: current,
            total: total
          }, "{{current}} of {{total}} match" + (total !== 1 ? "es" : ""));
        }
      }

      Promise.resolve(matchesCountMsg).then(function (msg) {
        _this3.findResultsCount.textContent = msg;

        _this3.findResultsCount.classList.toggle("hidden", !total);

        _this3._adjustWidth();
      });
    }
  }, {
    key: "open",
    value: function 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();
    }
  }, {
    key: "close",
    value: function close() {
      if (!this.opened) {
        return;
      }

      this.opened = false;
      this.toggleButton.classList.remove("toggled");
      this.bar.classList.add("hidden");
      this.eventBus.dispatch("findbarclose", {
        source: this
      });
    }
  }, {
    key: "toggle",
    value: function toggle() {
      if (this.opened) {
        this.close();
      } else {
        this.open();
      }
    }
  }, {
    key: "_adjustWidth",
    value: function _adjustWidth() {
      if (!this.opened) {
        return;
      }

      this.bar.classList.remove("wrapContainers");
      var findbarHeight = this.bar.clientHeight;
      var inputContainerHeight = this.bar.firstElementChild.clientHeight;

      if (findbarHeight > inputContainerHeight) {
        this.bar.classList.add("wrapContainers");
      }
    }
  }]);

  return PDFFindBar;
}();

exports.PDFFindBar = PDFFindBar;

/***/ }),
/* 19 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFFindController = exports.FindState = void 0;

var _pdfjsLib = __webpack_require__(8);

var _pdf_find_utils = __webpack_require__(20);

var _ui_utils = __webpack_require__(5);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var FindState = {
  FOUND: 0,
  NOT_FOUND: 1,
  WRAPPED: 2,
  PENDING: 3
};
exports.FindState = FindState;
var FIND_TIMEOUT = 250;
var MATCH_SCROLL_OFFSET_TOP = -50;
var MATCH_SCROLL_OFFSET_LEFT = -400;
var CHARACTERS_TO_NORMALIZE = {
  "\u2018": "'",
  "\u2019": "'",
  "\u201A": "'",
  "\u201B": "'",
  "\u201C": '"',
  "\u201D": '"',
  "\u201E": '"',
  "\u201F": '"',
  "\xBC": "1/4",
  "\xBD": "1/2",
  "\xBE": "3/4"
};
var normalizationRegex = null;

function normalize(text) {
  if (!normalizationRegex) {
    var replace = Object.keys(CHARACTERS_TO_NORMALIZE).join("");
    normalizationRegex = new RegExp("[".concat(replace, "]"), "g");
  }

  return text.replace(normalizationRegex, function (ch) {
    return CHARACTERS_TO_NORMALIZE[ch];
  });
}

var PDFFindController = /*#__PURE__*/function () {
  function PDFFindController(_ref) {
    var linkService = _ref.linkService,
        eventBus = _ref.eventBus;

    _classCallCheck(this, PDFFindController);

    this._linkService = linkService;
    this._eventBus = eventBus;

    this._reset();

    eventBus._on("findbarclose", this._onFindBarClose.bind(this));
  }

  _createClass(PDFFindController, [{
    key: "setDocument",
    value: function setDocument(pdfDocument) {
      if (this._pdfDocument) {
        this._reset();
      }

      if (!pdfDocument) {
        return;
      }

      this._pdfDocument = pdfDocument;

      this._firstPageCapability.resolve();
    }
  }, {
    key: "executeCommand",
    value: function executeCommand(cmd, state) {
      var _this = this;

      if (!state) {
        return;
      }

      var 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(function () {
        if (!_this._pdfDocument || pdfDocument && _this._pdfDocument !== pdfDocument) {
          return;
        }

        _this._extractText();

        var findbarClosed = !_this._highlightMatches;
        var pendingTimeout = !!_this._findTimeout;

        if (_this._findTimeout) {
          clearTimeout(_this._findTimeout);
          _this._findTimeout = null;
        }

        if (cmd === "find") {
          _this._findTimeout = setTimeout(function () {
            _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();
        }
      });
    }
  }, {
    key: "scrollMatchIntoView",
    value: function scrollMatchIntoView(_ref2) {
      var _ref2$element = _ref2.element,
          element = _ref2$element === void 0 ? null : _ref2$element,
          _ref2$pageIndex = _ref2.pageIndex,
          pageIndex = _ref2$pageIndex === void 0 ? -1 : _ref2$pageIndex,
          _ref2$matchIndex = _ref2.matchIndex,
          matchIndex = _ref2$matchIndex === void 0 ? -1 : _ref2$matchIndex;

      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;
      var spot = {
        top: MATCH_SCROLL_OFFSET_TOP,
        left: MATCH_SCROLL_OFFSET_LEFT
      };
      (0, _ui_utils.scrollIntoView)(element, spot, true);
    }
  }, {
    key: "_reset",
    value: function _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)();
    }
  }, {
    key: "_shouldDirtyMatch",
    value: function _shouldDirtyMatch(cmd, state) {
      if (state.query !== this._state.query) {
        return true;
      }

      switch (cmd) {
        case "findagain":
          var pageNumber = this._selected.pageIdx + 1;
          var 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;
    }
  }, {
    key: "_prepareMatches",
    value: function _prepareMatches(matchesWithLength, matches, matchesLength) {
      function isSubTerm(currentIndex) {
        var currentElem = matchesWithLength[currentIndex];
        var nextElem = matchesWithLength[currentIndex + 1];

        if (currentIndex < matchesWithLength.length - 1 && currentElem.match === nextElem.match) {
          currentElem.skipped = true;
          return true;
        }

        for (var i = currentIndex - 1; i >= 0; i--) {
          var 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 (var i = 0, len = matchesWithLength.length; i < len; i++) {
        if (isSubTerm(i)) {
          continue;
        }

        matches.push(matchesWithLength[i].match);
        matchesLength.push(matchesWithLength[i].matchLength);
      }
    }
  }, {
    key: "_isEntireWord",
    value: function _isEntireWord(content, startIdx, length) {
      if (startIdx > 0) {
        var first = content.charCodeAt(startIdx);
        var limit = content.charCodeAt(startIdx - 1);

        if ((0, _pdf_find_utils.getCharacterType)(first) === (0, _pdf_find_utils.getCharacterType)(limit)) {
          return false;
        }
      }

      var endIdx = startIdx + length - 1;

      if (endIdx < content.length - 1) {
        var last = content.charCodeAt(endIdx);

        var _limit = content.charCodeAt(endIdx + 1);

        if ((0, _pdf_find_utils.getCharacterType)(last) === (0, _pdf_find_utils.getCharacterType)(_limit)) {
          return false;
        }
      }

      return true;
    }
  }, {
    key: "_calculatePhraseMatch",
    value: function _calculatePhraseMatch(query, pageIndex, pageContent, entireWord) {
      var matches = [];
      var queryLen = query.length;
      var 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;
    }
  }, {
    key: "_calculateWordMatch",
    value: function _calculateWordMatch(query, pageIndex, pageContent, entireWord) {
      var matchesWithLength = [];
      var queryArray = query.match(/\S+/g);

      for (var i = 0, len = queryArray.length; i < len; i++) {
        var subquery = queryArray[i];
        var subqueryLen = subquery.length;
        var 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]);
    }
  }, {
    key: "_calculateMatch",
    value: function _calculateMatch(pageIndex) {
      var pageContent = this._pageContents[pageIndex];
      var query = this._query;
      var _this$_state = this._state,
          caseSensitive = _this$_state.caseSensitive,
          entireWord = _this$_state.entireWord,
          phraseSearch = _this$_state.phraseSearch;

      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();
      }

      var pageMatchesCount = this._pageMatches[pageIndex].length;

      if (pageMatchesCount > 0) {
        this._matchesCountTotal += pageMatchesCount;

        this._updateUIResultsCount();
      }
    }
  }, {
    key: "_extractText",
    value: function _extractText() {
      var _this2 = this;

      if (this._extractTextPromises.length > 0) {
        return;
      }

      var promise = Promise.resolve();

      var _loop = function _loop(i, ii) {
        var extractTextCapability = (0, _pdfjsLib.createPromiseCapability)();
        _this2._extractTextPromises[i] = extractTextCapability.promise;
        promise = promise.then(function () {
          return _this2._pdfDocument.getPage(i + 1).then(function (pdfPage) {
            return pdfPage.getTextContent({
              normalizeWhitespace: true
            });
          }).then(function (textContent) {
            var textItems = textContent.items;
            var strBuf = [];

            for (var j = 0, jj = textItems.length; j < jj; j++) {
              strBuf.push(textItems[j].str);
            }

            _this2._pageContents[i] = normalize(strBuf.join(""));
            extractTextCapability.resolve(i);
          }, function (reason) {
            console.error("Unable to get text content for page ".concat(i + 1), reason);
            _this2._pageContents[i] = "";
            extractTextCapability.resolve(i);
          });
        });
      };

      for (var i = 0, ii = this._linkService.pagesCount; i < ii; i++) {
        _loop(i, ii);
      }
    }
  }, {
    key: "_updatePage",
    value: function _updatePage(index) {
      if (this._scrollMatches && this._selected.pageIdx === index) {
        this._linkService.page = index + 1;
      }

      this._eventBus.dispatch("updatetextlayermatches", {
        source: this,
        pageIndex: index
      });
    }
  }, {
    key: "_updateAllPages",
    value: function _updateAllPages() {
      this._eventBus.dispatch("updatetextlayermatches", {
        source: this,
        pageIndex: -1
      });
    }
  }, {
    key: "_nextMatch",
    value: function _nextMatch() {
      var _this3 = this;

      var previous = this._state.findPrevious;
      var currentPageIndex = this._linkService.page - 1;
      var 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 (var i = 0; i < numPages; i++) {
          if (this._pendingFindMatches[i] === true) {
            continue;
          }

          this._pendingFindMatches[i] = true;

          this._extractTextPromises[i].then(function (pageIdx) {
            delete _this3._pendingFindMatches[pageIdx];

            _this3._calculateMatch(pageIdx);
          });
        }
      }

      if (this._query === "") {
        this._updateUIState(FindState.FOUND);

        return;
      }

      if (this._resumePageIdx) {
        return;
      }

      var offset = this._offset;
      this._pagesToSearch = numPages;

      if (offset.matchIdx !== null) {
        var 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();
    }
  }, {
    key: "_matchesReady",
    value: function _matchesReady(matches) {
      var offset = this._offset;
      var numMatches = matches.length;
      var 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;
    }
  }, {
    key: "_nextPageMatch",
    value: function _nextPageMatch() {
      if (this._resumePageIdx !== null) {
        console.error("There can only be one pending page.");
      }

      var matches = null;

      do {
        var pageIdx = this._offset.pageIdx;
        matches = this._pageMatches[pageIdx];

        if (!matches) {
          this._resumePageIdx = pageIdx;
          break;
        }
      } while (!this._matchesReady(matches));
    }
  }, {
    key: "_advanceOffsetPage",
    value: function _advanceOffsetPage(previous) {
      var offset = this._offset;
      var 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;
      }
    }
  }, {
    key: "_updateMatch",
    value: function _updateMatch() {
      var found = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var state = FindState.NOT_FOUND;
      var wrapped = this._offset.wrapped;
      this._offset.wrapped = false;

      if (found) {
        var 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);
      }
    }
  }, {
    key: "_onFindBarClose",
    value: function _onFindBarClose(evt) {
      var _this4 = this;

      var pdfDocument = this._pdfDocument;

      this._firstPageCapability.promise.then(function () {
        if (!_this4._pdfDocument || pdfDocument && _this4._pdfDocument !== pdfDocument) {
          return;
        }

        if (_this4._findTimeout) {
          clearTimeout(_this4._findTimeout);
          _this4._findTimeout = null;
        }

        if (_this4._resumePageIdx) {
          _this4._resumePageIdx = null;
          _this4._dirtyMatch = true;
        }

        _this4._updateUIState(FindState.FOUND);

        _this4._highlightMatches = false;

        _this4._updateAllPages();
      });
    }
  }, {
    key: "_requestMatchesCount",
    value: function _requestMatchesCount() {
      var _this$_selected = this._selected,
          pageIdx = _this$_selected.pageIdx,
          matchIdx = _this$_selected.matchIdx;
      var current = 0,
          total = this._matchesCountTotal;

      if (matchIdx !== -1) {
        for (var 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: current,
        total: total
      };
    }
  }, {
    key: "_updateUIResultsCount",
    value: function _updateUIResultsCount() {
      this._eventBus.dispatch("updatefindmatchescount", {
        source: this,
        matchesCount: this._requestMatchesCount()
      });
    }
  }, {
    key: "_updateUIState",
    value: function _updateUIState(state, previous) {
      this._eventBus.dispatch("updatefindcontrolstate", {
        source: this,
        state: state,
        previous: previous,
        matchesCount: this._requestMatchesCount(),
        rawQuery: this._state ? this._state.query : null
      });
    }
  }, {
    key: "highlightMatches",
    get: function get() {
      return this._highlightMatches;
    }
  }, {
    key: "pageMatches",
    get: function get() {
      return this._pageMatches;
    }
  }, {
    key: "pageMatchesLength",
    get: function get() {
      return this._pageMatchesLength;
    }
  }, {
    key: "selected",
    get: function get() {
      return this._selected;
    }
  }, {
    key: "state",
    get: function get() {
      return this._state;
    }
  }, {
    key: "_query",
    get: function get() {
      if (this._state.query !== this._rawQuery) {
        this._rawQuery = this._state.query;
        this._normalizedQuery = normalize(this._state.query);
      }

      return this._normalizedQuery;
    }
  }]);

  return PDFFindController;
}();

exports.PDFFindController = PDFFindController;

/***/ }),
/* 20 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getCharacterType = getCharacterType;
exports.CharacterType = void 0;
var 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;
}

/***/ }),
/* 21 */
/***/ (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__(5);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _unsupportedIterableToArray(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _iterableToArrayLimit(arr, i) { if (typeof Symbol === "undefined" || !(Symbol.iterator in Object(arr))) return; var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var HASH_CHANGE_TIMEOUT = 1000;
var POSITION_UPDATED_THRESHOLD = 50;
var UPDATE_VIEWAREA_TIMEOUT = 1000;

function getCurrentHash() {
  return document.location.hash;
}

var PDFHistory = /*#__PURE__*/function () {
  function PDFHistory(_ref) {
    var _this = this;

    var linkService = _ref.linkService,
        eventBus = _ref.eventBus;

    _classCallCheck(this, PDFHistory);

    this.linkService = linkService;
    this.eventBus = eventBus;
    this._initialized = false;
    this._fingerprint = "";
    this.reset();
    this._boundEvents = null;
    this._isViewerInPresentationMode = false;

    this.eventBus._on("presentationmodechanged", function (evt) {
      _this._isViewerInPresentationMode = evt.active || evt.switchInProgress;
    });

    this.eventBus._on("pagesinit", function () {
      _this._isPagesLoaded = false;

      var onPagesLoaded = function onPagesLoaded(evt) {
        _this.eventBus._off("pagesloaded", onPagesLoaded);

        _this._isPagesLoaded = !!evt.pagesCount;
      };

      _this.eventBus._on("pagesloaded", onPagesLoaded);
    });
  }

  _createClass(PDFHistory, [{
    key: "initialize",
    value: function initialize(_ref2) {
      var fingerprint = _ref2.fingerprint,
          _ref2$resetHistory = _ref2.resetHistory,
          resetHistory = _ref2$resetHistory === void 0 ? false : _ref2$resetHistory,
          _ref2$updateUrl = _ref2.updateUrl,
          updateUrl = _ref2$updateUrl === void 0 ? false : _ref2$updateUrl;

      if (!fingerprint || typeof fingerprint !== "string") {
        console.error('PDFHistory.initialize: The "fingerprint" must be a non-empty string.');
        return;
      }

      if (this._initialized) {
        this.reset();
      }

      var reInitialized = this._fingerprint !== "" && this._fingerprint !== fingerprint;
      this._fingerprint = fingerprint;
      this._updateUrl = updateUrl === true;
      this._initialized = true;

      this._bindEvents();

      var 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) {
        var _this$_parseCurrentHa = this._parseCurrentHash(true),
            hash = _this$_parseCurrentHa.hash,
            page = _this$_parseCurrentHa.page,
            rotation = _this$_parseCurrentHa.rotation;

        if (!hash || reInitialized || resetHistory) {
          this._pushOrReplaceState(null, true);

          return;
        }

        this._pushOrReplaceState({
          hash: hash,
          page: page,
          rotation: rotation
        }, true);

        return;
      }

      var 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=".concat(destination.page);
      }
    }
  }, {
    key: "reset",
    value: function 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;
    }
  }, {
    key: "push",
    value: function push(_ref3) {
      var _this2 = this;

      var _ref3$namedDest = _ref3.namedDest,
          namedDest = _ref3$namedDest === void 0 ? null : _ref3$namedDest,
          explicitDest = _ref3.explicitDest,
          pageNumber = _ref3.pageNumber;

      if (!this._initialized) {
        return;
      }

      if (namedDest && typeof namedDest !== "string") {
        console.error("PDFHistory.push: " + "\"".concat(namedDest, "\" is not a valid namedDest parameter."));
        return;
      } else if (!Array.isArray(explicitDest)) {
        console.error("PDFHistory.push: " + "\"".concat(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: " + "\"".concat(pageNumber, "\" is not a valid pageNumber parameter."));
          return;
        }
      }

      var hash = namedDest || JSON.stringify(explicitDest);

      if (!hash) {
        return;
      }

      var 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: hash,
        page: pageNumber,
        rotation: this.linkService.rotation
      }, forceReplace);

      if (!this._popStateInProgress) {
        this._popStateInProgress = true;
        Promise.resolve().then(function () {
          _this2._popStateInProgress = false;
        });
      }
    }
  }, {
    key: "pushCurrentPosition",
    value: function pushCurrentPosition() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }

      this._tryPushCurrentPosition();
    }
  }, {
    key: "back",
    value: function back() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }

      var state = window.history.state;

      if (this._isValidState(state) && state.uid > 0) {
        window.history.back();
      }
    }
  }, {
    key: "forward",
    value: function forward() {
      if (!this._initialized || this._popStateInProgress) {
        return;
      }

      var state = window.history.state;

      if (this._isValidState(state) && state.uid < this._maxUid) {
        window.history.forward();
      }
    }
  }, {
    key: "_pushOrReplaceState",
    value: function _pushOrReplaceState(destination) {
      var forceReplace = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var shouldReplace = forceReplace || !this._destination;
      var newState = {
        fingerprint: this._fingerprint,
        uid: shouldReplace ? this._uid : this._uid + 1,
        destination: destination
      };

      this._updateInternalState(destination, newState.uid);

      var newUrl;

      if (this._updateUrl && destination && destination.hash) {
        var baseUrl = document.location.href.split("#")[0];

        if (!baseUrl.startsWith("file://")) {
          newUrl = "".concat(baseUrl, "#").concat(destination.hash);
        }
      }

      if (shouldReplace) {
        window.history.replaceState(newState, "", newUrl);
      } else {
        this._maxUid = this._uid;
        window.history.pushState(newState, "", newUrl);
      }
    }
  }, {
    key: "_tryPushCurrentPosition",
    value: function _tryPushCurrentPosition() {
      var temporary = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (!this._position) {
        return;
      }

      var 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;
      }

      var 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);
    }
  }, {
    key: "_isValidState",
    value: function _isValidState(state) {
      var checkReload = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 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;
          }

          var _performance$getEntri = performance.getEntriesByType("navigation"),
              _performance$getEntri2 = _slicedToArray(_performance$getEntri, 1),
              perfEntry = _performance$getEntri2[0];

          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;
    }
  }, {
    key: "_updateInternalState",
    value: function _updateInternalState(destination, uid) {
      var removeTemporary = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 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;
    }
  }, {
    key: "_parseCurrentHash",
    value: function _parseCurrentHash() {
      var checkNameddest = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var hash = unescape(getCurrentHash()).substring(1);
      var params = (0, _ui_utils.parseQueryString)(hash);
      var nameddest = params.nameddest || "";
      var page = params.page | 0;

      if (!(Number.isInteger(page) && page > 0 && page <= this.linkService.pagesCount) || checkNameddest && nameddest.length > 0) {
        page = null;
      }

      return {
        hash: hash,
        page: page,
        rotation: this.linkService.rotation
      };
    }
  }, {
    key: "_updateViewarea",
    value: function _updateViewarea(_ref4) {
      var _this3 = this;

      var location = _ref4.location;

      if (this._updateViewareaTimeout) {
        clearTimeout(this._updateViewareaTimeout);
        this._updateViewareaTimeout = null;
      }

      this._position = {
        hash: this._isViewerInPresentationMode ? "page=".concat(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(function () {
          if (!_this3._popStateInProgress) {
            _this3._tryPushCurrentPosition(true);
          }

          _this3._updateViewareaTimeout = null;
        }, UPDATE_VIEWAREA_TIMEOUT);
      }
    }
  }, {
    key: "_popState",
    value: function _popState(_ref5) {
      var _this4 = this;

      var state = _ref5.state;
      var newHash = getCurrentHash(),
          hashChanged = this._currentHash !== newHash;
      this._currentHash = newHash;

      if (!state) {
        this._uid++;

        var _this$_parseCurrentHa2 = this._parseCurrentHash(),
            hash = _this$_parseCurrentHa2.hash,
            page = _this$_parseCurrentHa2.page,
            rotation = _this$_parseCurrentHa2.rotation;

        this._pushOrReplaceState({
          hash: hash,
          page: page,
          rotation: 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(function () {
          _this4._blockHashChange--;
        });
      }

      var 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(function () {
        _this4._popStateInProgress = false;
      });
    }
  }, {
    key: "_pageHide",
    value: function _pageHide() {
      if (!this._destination || this._destination.temporary) {
        this._tryPushCurrentPosition();
      }
    }
  }, {
    key: "_bindEvents",
    value: function _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);
    }
  }, {
    key: "_unbindEvents",
    value: function _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;
    }
  }, {
    key: "popStateInProgress",
    get: function get() {
      return this._initialized && (this._popStateInProgress || this._blockHashChange > 0);
    }
  }, {
    key: "initialBookmark",
    get: function get() {
      return this._initialized ? this._initialBookmark : null;
    }
  }, {
    key: "initialRotation",
    get: function get() {
      return this._initialized ? this._initialRotation : null;
    }
  }]);

  return PDFHistory;
}();

exports.PDFHistory = PDFHistory;

function isDestHashesEqual(destHash, pushHash) {
  if (typeof destHash !== "string" || typeof pushHash !== "string") {
    return false;
  }

  if (destHash === pushHash) {
    return true;
  }

  var _parseQueryString = (0, _ui_utils.parseQueryString)(destHash),
      nameddest = _parseQueryString.nameddest;

  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 (var 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 (var i = 0, ii = firstDest.length; i < ii; i++) {
    if (!isEntryEqual(firstDest[i], secondDest[i])) {
      return false;
    }
  }

  return true;
}

/***/ }),
/* 22 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFLayerViewer = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _base_tree_viewer = __webpack_require__(16);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var PDFLayerViewer = /*#__PURE__*/function (_BaseTreeViewer) {
  _inherits(PDFLayerViewer, _BaseTreeViewer);

  var _super = _createSuper(PDFLayerViewer);

  function PDFLayerViewer(options) {
    var _this;

    _classCallCheck(this, PDFLayerViewer);

    _this = _super.call(this, options);
    _this.l10n = options.l10n;

    _this.eventBus._on("resetlayers", _this._resetLayers.bind(_assertThisInitialized(_this)));

    _this.eventBus._on("togglelayerstree", _this._toggleAllTreeItems.bind(_assertThisInitialized(_this)));

    return _this;
  }

  _createClass(PDFLayerViewer, [{
    key: "reset",
    value: function reset() {
      _get(_getPrototypeOf(PDFLayerViewer.prototype), "reset", this).call(this);

      this._optionalContentConfig = null;
      this._pdfDocument = null;
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent(layersCount) {
      this.eventBus.dispatch("layersloaded", {
        source: this,
        layersCount: layersCount
      });
    }
  }, {
    key: "_bindLink",
    value: function _bindLink(element, _ref) {
      var _this2 = this;

      var groupId = _ref.groupId,
          input = _ref.input;

      var setVisibility = function setVisibility() {
        _this2._optionalContentConfig.setVisibility(groupId, input.checked);

        _this2.eventBus.dispatch("optionalcontentconfig", {
          source: _this2,
          promise: Promise.resolve(_this2._optionalContentConfig)
        });
      };

      element.onclick = function (evt) {
        if (evt.target === input) {
          setVisibility();
          return true;
        } else if (evt.target !== element) {
          return true;
        }

        input.checked = !input.checked;
        setVisibility();
        return false;
      };
    }
  }, {
    key: "_setNestedName",
    value: function () {
      var _setNestedName2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee(element, _ref2) {
        var _ref2$name, name;

        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _ref2$name = _ref2.name, name = _ref2$name === void 0 ? null : _ref2$name;

                if (!(typeof name === "string")) {
                  _context.next = 4;
                  break;
                }

                element.textContent = this._normalizeTextContent(name);
                return _context.abrupt("return");

              case 4:
                _context.next = 6;
                return this.l10n.get("additional_layers", null, "Additional Layers");

              case 6:
                element.textContent = _context.sent;
                element.style.fontStyle = "italic";

              case 8:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function _setNestedName(_x, _x2) {
        return _setNestedName2.apply(this, arguments);
      }

      return _setNestedName;
    }()
  }, {
    key: "_addToggleButton",
    value: function _addToggleButton(div, _ref3) {
      var _ref3$name = _ref3.name,
          name = _ref3$name === void 0 ? null : _ref3$name;

      _get(_getPrototypeOf(PDFLayerViewer.prototype), "_addToggleButton", this).call(this, div, name === null);
    }
  }, {
    key: "_toggleAllTreeItems",
    value: function _toggleAllTreeItems() {
      if (!this._optionalContentConfig) {
        return;
      }

      _get(_getPrototypeOf(PDFLayerViewer.prototype), "_toggleAllTreeItems", this).call(this);
    }
  }, {
    key: "render",
    value: function render(_ref4) {
      var optionalContentConfig = _ref4.optionalContentConfig,
          pdfDocument = _ref4.pdfDocument;

      if (this._optionalContentConfig) {
        this.reset();
      }

      this._optionalContentConfig = optionalContentConfig || null;
      this._pdfDocument = pdfDocument || null;
      var groups = optionalContentConfig && optionalContentConfig.getOrder();

      if (!groups) {
        this._dispatchEvent(0);

        return;
      }

      var fragment = document.createDocumentFragment(),
          queue = [{
        parent: fragment,
        groups: groups
      }];
      var layersCount = 0,
          hasAnyNesting = false;

      while (queue.length > 0) {
        var levelData = queue.shift();

        var _iterator = _createForOfIteratorHelper(levelData.groups),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var groupId = _step.value;
            var div = document.createElement("div");
            div.className = "treeItem";
            var element = document.createElement("a");
            div.appendChild(element);

            if (_typeof(groupId) === "object") {
              hasAnyNesting = true;

              this._addToggleButton(div, groupId);

              this._setNestedName(element, groupId);

              var itemsDiv = document.createElement("div");
              itemsDiv.className = "treeItems";
              div.appendChild(itemsDiv);
              queue.push({
                parent: itemsDiv,
                groups: groupId.order
              });
            } else {
              var group = optionalContentConfig.getGroup(groupId);
              var input = document.createElement("input");

              this._bindLink(element, {
                groupId: groupId,
                input: input
              });

              input.type = "checkbox";
              input.id = groupId;
              input.checked = group.visible;
              var label = document.createElement("label");
              label.setAttribute("for", groupId);
              label.textContent = this._normalizeTextContent(group.name);
              element.appendChild(input);
              element.appendChild(label);
              layersCount++;
            }

            levelData.parent.appendChild(div);
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }

      if (hasAnyNesting) {
        this.container.classList.add("treeWithDeepNesting");
        this._lastToggleIsShow = fragment.querySelectorAll(".treeItemsHidden").length === 0;
      }

      this.container.appendChild(fragment);

      this._dispatchEvent(layersCount);
    }
  }, {
    key: "_resetLayers",
    value: function () {
      var _resetLayers2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
        var optionalContentConfig;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (this._optionalContentConfig) {
                  _context2.next = 2;
                  break;
                }

                return _context2.abrupt("return");

              case 2:
                _context2.next = 4;
                return this._pdfDocument.getOptionalContentConfig();

              case 4:
                optionalContentConfig = _context2.sent;
                this.eventBus.dispatch("optionalcontentconfig", {
                  source: this,
                  promise: Promise.resolve(optionalContentConfig)
                });
                this.render({
                  optionalContentConfig: optionalContentConfig,
                  pdfDocument: this._pdfDocument
                });

              case 7:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function _resetLayers() {
        return _resetLayers2.apply(this, arguments);
      }

      return _resetLayers;
    }()
  }]);

  return PDFLayerViewer;
}(_base_tree_viewer.BaseTreeViewer);

exports.PDFLayerViewer = PDFLayerViewer;

/***/ }),
/* 23 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SimpleLinkService = exports.PDFLinkService = void 0;

var _ui_utils = __webpack_require__(5);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var PDFLinkService = /*#__PURE__*/function () {
  function PDFLinkService() {
    var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
        eventBus = _ref.eventBus,
        _ref$externalLinkTarg = _ref.externalLinkTarget,
        externalLinkTarget = _ref$externalLinkTarg === void 0 ? null : _ref$externalLinkTarg,
        _ref$externalLinkRel = _ref.externalLinkRel,
        externalLinkRel = _ref$externalLinkRel === void 0 ? null : _ref$externalLinkRel,
        _ref$externalLinkEnab = _ref.externalLinkEnabled,
        externalLinkEnabled = _ref$externalLinkEnab === void 0 ? true : _ref$externalLinkEnab,
        _ref$ignoreDestinatio = _ref.ignoreDestinationZoom,
        ignoreDestinationZoom = _ref$ignoreDestinatio === void 0 ? false : _ref$ignoreDestinatio;

    _classCallCheck(this, PDFLinkService);

    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;
  }

  _createClass(PDFLinkService, [{
    key: "setDocument",
    value: function setDocument(pdfDocument) {
      var baseUrl = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
      this.baseUrl = baseUrl;
      this.pdfDocument = pdfDocument;
      this._pagesRefCache = Object.create(null);
    }
  }, {
    key: "setViewer",
    value: function setViewer(pdfViewer) {
      this.pdfViewer = pdfViewer;
    }
  }, {
    key: "setHistory",
    value: function setHistory(pdfHistory) {
      this.pdfHistory = pdfHistory;
    }
  }, {
    key: "navigateTo",
    value: function navigateTo(dest) {
      var _this = this;

      var goToDestination = function goToDestination(_ref2) {
        var namedDest = _ref2.namedDest,
            explicitDest = _ref2.explicitDest;
        var destRef = explicitDest[0];
        var pageNumber;

        if (destRef instanceof Object) {
          pageNumber = _this._cachedPageNumber(destRef);

          if (pageNumber === null) {
            _this.pdfDocument.getPageIndex(destRef).then(function (pageIndex) {
              _this.cachePageRef(pageIndex + 1, destRef);

              goToDestination({
                namedDest: namedDest,
                explicitDest: explicitDest
              });
            })["catch"](function () {
              console.error("PDFLinkService.navigateTo: \"".concat(destRef, "\" is not ") + "a valid page reference, for dest=\"".concat(dest, "\"."));
            });

            return;
          }
        } else if (Number.isInteger(destRef)) {
          pageNumber = destRef + 1;
        } else {
          console.error("PDFLinkService.navigateTo: \"".concat(destRef, "\" is not ") + "a valid destination reference, for dest=\"".concat(dest, "\"."));
          return;
        }

        if (!pageNumber || pageNumber < 1 || pageNumber > _this.pagesCount) {
          console.error("PDFLinkService.navigateTo: \"".concat(pageNumber, "\" is not ") + "a valid page number, for dest=\"".concat(dest, "\"."));
          return;
        }

        if (_this.pdfHistory) {
          _this.pdfHistory.pushCurrentPosition();

          _this.pdfHistory.push({
            namedDest: namedDest,
            explicitDest: explicitDest,
            pageNumber: pageNumber
          });
        }

        _this.pdfViewer.scrollPageIntoView({
          pageNumber: pageNumber,
          destArray: explicitDest,
          ignoreDestinationZoom: _this._ignoreDestinationZoom
        });
      };

      new Promise(function (resolve, reject) {
        if (typeof dest === "string") {
          _this.pdfDocument.getDestination(dest).then(function (destArray) {
            resolve({
              namedDest: dest,
              explicitDest: destArray
            });
          });

          return;
        }

        resolve({
          namedDest: "",
          explicitDest: dest
        });
      }).then(function (data) {
        if (!Array.isArray(data.explicitDest)) {
          console.error("PDFLinkService.navigateTo: \"".concat(data.explicitDest, "\" is") + " not a valid destination array, for dest=\"".concat(dest, "\"."));
          return;
        }

        goToDestination(data);
      });
    }
  }, {
    key: "getDestinationHash",
    value: function getDestinationHash(dest) {
      if (typeof dest === "string") {
        return this.getAnchorUrl("#" + escape(dest));
      }

      if (Array.isArray(dest)) {
        var str = JSON.stringify(dest);
        return this.getAnchorUrl("#" + escape(str));
      }

      return this.getAnchorUrl("");
    }
  }, {
    key: "getAnchorUrl",
    value: function getAnchorUrl(anchor) {
      return (this.baseUrl || "") + anchor;
    }
  }, {
    key: "setHash",
    value: function setHash(hash) {
      var pageNumber, dest;

      if (hash.includes("=")) {
        var 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) {
          var zoomArgs = params.zoom.split(",");
          var zoomArg = zoomArgs[0];
          var 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: \"".concat(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: \"".concat(unescape(hash), "\" is not ") + "a valid destination.");
      }
    }
  }, {
    key: "executeNamedAction",
    value: function 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: action
      });
    }
  }, {
    key: "cachePageRef",
    value: function cachePageRef(pageNum, pageRef) {
      if (!pageRef) {
        return;
      }

      var refStr = pageRef.gen === 0 ? "".concat(pageRef.num, "R") : "".concat(pageRef.num, "R").concat(pageRef.gen);
      this._pagesRefCache[refStr] = pageNum;
    }
  }, {
    key: "_cachedPageNumber",
    value: function _cachedPageNumber(pageRef) {
      var refStr = pageRef.gen === 0 ? "".concat(pageRef.num, "R") : "".concat(pageRef.num, "R").concat(pageRef.gen);
      return this._pagesRefCache && this._pagesRefCache[refStr] || null;
    }
  }, {
    key: "isPageVisible",
    value: function isPageVisible(pageNumber) {
      return this.pdfViewer.isPageVisible(pageNumber);
    }
  }, {
    key: "pagesCount",
    get: function get() {
      return this.pdfDocument ? this.pdfDocument.numPages : 0;
    }
  }, {
    key: "page",
    get: function get() {
      return this.pdfViewer.currentPageNumber;
    },
    set: function set(value) {
      this.pdfViewer.currentPageNumber = value;
    }
  }, {
    key: "rotation",
    get: function get() {
      return this.pdfViewer.pagesRotation;
    },
    set: function set(value) {
      this.pdfViewer.pagesRotation = value;
    }
  }]);

  return PDFLinkService;
}();

exports.PDFLinkService = PDFLinkService;

function isValidExplicitDestination(dest) {
  if (!Array.isArray(dest)) {
    return false;
  }

  var destLength = dest.length;

  if (destLength < 2) {
    return false;
  }

  var page = dest[0];

  if (!(_typeof(page) === "object" && Number.isInteger(page.num) && Number.isInteger(page.gen)) && !(Number.isInteger(page) && page >= 0)) {
    return false;
  }

  var zoom = dest[1];

  if (!(_typeof(zoom) === "object" && typeof zoom.name === "string")) {
    return false;
  }

  var 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 (var i = 2; i < destLength; i++) {
    var param = dest[i];

    if (!(typeof param === "number" || allowNull && param === null)) {
      return false;
    }
  }

  return true;
}

var SimpleLinkService = /*#__PURE__*/function () {
  function SimpleLinkService() {
    _classCallCheck(this, SimpleLinkService);

    this.externalLinkTarget = null;
    this.externalLinkRel = null;
    this.externalLinkEnabled = true;
    this._ignoreDestinationZoom = false;
  }

  _createClass(SimpleLinkService, [{
    key: "navigateTo",
    value: function navigateTo(dest) {}
  }, {
    key: "getDestinationHash",
    value: function getDestinationHash(dest) {
      return "#";
    }
  }, {
    key: "getAnchorUrl",
    value: function getAnchorUrl(hash) {
      return "#";
    }
  }, {
    key: "setHash",
    value: function setHash(hash) {}
  }, {
    key: "executeNamedAction",
    value: function executeNamedAction(action) {}
  }, {
    key: "cachePageRef",
    value: function cachePageRef(pageNum, pageRef) {}
  }, {
    key: "isPageVisible",
    value: function isPageVisible(pageNumber) {
      return true;
    }
  }, {
    key: "pagesCount",
    get: function get() {
      return 0;
    }
  }, {
    key: "page",
    get: function get() {
      return 0;
    },
    set: function set(value) {}
  }, {
    key: "rotation",
    get: function get() {
      return 0;
    },
    set: function set(value) {}
  }]);

  return SimpleLinkService;
}();

exports.SimpleLinkService = SimpleLinkService;

/***/ }),
/* 24 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFOutlineViewer = void 0;

var _pdfjsLib = __webpack_require__(8);

var _base_tree_viewer = __webpack_require__(16);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var PDFOutlineViewer = /*#__PURE__*/function (_BaseTreeViewer) {
  _inherits(PDFOutlineViewer, _BaseTreeViewer);

  var _super = _createSuper(PDFOutlineViewer);

  function PDFOutlineViewer(options) {
    var _this;

    _classCallCheck(this, PDFOutlineViewer);

    _this = _super.call(this, options);
    _this.linkService = options.linkService;

    _this.eventBus._on("toggleoutlinetree", _this._toggleAllTreeItems.bind(_assertThisInitialized(_this)));

    return _this;
  }

  _createClass(PDFOutlineViewer, [{
    key: "reset",
    value: function reset() {
      _get(_getPrototypeOf(PDFOutlineViewer.prototype), "reset", this).call(this);

      this._outline = null;
    }
  }, {
    key: "_dispatchEvent",
    value: function _dispatchEvent(outlineCount) {
      this.eventBus.dispatch("outlineloaded", {
        source: this,
        outlineCount: outlineCount
      });
    }
  }, {
    key: "_bindLink",
    value: function _bindLink(element, _ref) {
      var url = _ref.url,
          newWindow = _ref.newWindow,
          dest = _ref.dest;
      var linkService = this.linkService;

      if (url) {
        (0, _pdfjsLib.addLinkAttributes)(element, {
          url: url,
          target: newWindow ? _pdfjsLib.LinkTarget.BLANK : linkService.externalLinkTarget,
          rel: linkService.externalLinkRel,
          enabled: linkService.externalLinkEnabled
        });
        return;
      }

      element.href = linkService.getDestinationHash(dest);

      element.onclick = function () {
        if (dest) {
          linkService.navigateTo(dest);
        }

        return false;
      };
    }
  }, {
    key: "_setStyles",
    value: function _setStyles(element, _ref2) {
      var bold = _ref2.bold,
          italic = _ref2.italic;

      if (bold) {
        element.style.fontWeight = "bold";
      }

      if (italic) {
        element.style.fontStyle = "italic";
      }
    }
  }, {
    key: "_addToggleButton",
    value: function _addToggleButton(div, _ref3) {
      var count = _ref3.count,
          items = _ref3.items;
      var hidden = count < 0 && Math.abs(count) === items.length;

      _get(_getPrototypeOf(PDFOutlineViewer.prototype), "_addToggleButton", this).call(this, div, hidden);
    }
  }, {
    key: "_toggleAllTreeItems",
    value: function _toggleAllTreeItems() {
      if (!this._outline) {
        return;
      }

      _get(_getPrototypeOf(PDFOutlineViewer.prototype), "_toggleAllTreeItems", this).call(this);
    }
  }, {
    key: "render",
    value: function render(_ref4) {
      var outline = _ref4.outline;

      if (this._outline) {
        this.reset();
      }

      this._outline = outline || null;

      if (!outline) {
        this._dispatchEvent(0);

        return;
      }

      var fragment = document.createDocumentFragment();
      var queue = [{
        parent: fragment,
        items: outline
      }];
      var outlineCount = 0,
          hasAnyNesting = false;

      while (queue.length > 0) {
        var levelData = queue.shift();

        var _iterator = _createForOfIteratorHelper(levelData.items),
            _step;

        try {
          for (_iterator.s(); !(_step = _iterator.n()).done;) {
            var item = _step.value;
            var div = document.createElement("div");
            div.className = "treeItem";
            var element = document.createElement("a");

            this._bindLink(element, item);

            this._setStyles(element, item);

            element.textContent = this._normalizeTextContent(item.title);
            div.appendChild(element);

            if (item.items.length > 0) {
              hasAnyNesting = true;

              this._addToggleButton(div, item);

              var itemsDiv = document.createElement("div");
              itemsDiv.className = "treeItems";
              div.appendChild(itemsDiv);
              queue.push({
                parent: itemsDiv,
                items: item.items
              });
            }

            levelData.parent.appendChild(div);
            outlineCount++;
          }
        } catch (err) {
          _iterator.e(err);
        } finally {
          _iterator.f();
        }
      }

      if (hasAnyNesting) {
        this.container.classList.add("treeWithDeepNesting");
        this._lastToggleIsShow = fragment.querySelectorAll(".treeItemsHidden").length === 0;
      }

      this.container.appendChild(fragment);

      this._dispatchEvent(outlineCount);
    }
  }]);

  return PDFOutlineViewer;
}(_base_tree_viewer.BaseTreeViewer);

exports.PDFOutlineViewer = PDFOutlineViewer;

/***/ }),
/* 25 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFPresentationMode = void 0;

var _ui_utils = __webpack_require__(5);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1500;
var DELAY_BEFORE_HIDING_CONTROLS = 3000;
var ACTIVE_SELECTOR = "pdfPresentationMode";
var CONTROLS_SELECTOR = "pdfPresentationModeControls";
var MOUSE_SCROLL_COOLDOWN_TIME = 50;
var PAGE_SWITCH_THRESHOLD = 0.1;
var SWIPE_MIN_DISTANCE_THRESHOLD = 50;
var SWIPE_ANGLE_THRESHOLD = Math.PI / 6;

var PDFPresentationMode = /*#__PURE__*/function () {
  function PDFPresentationMode(_ref) {
    var _this = this;

    var container = _ref.container,
        pdfViewer = _ref.pdfViewer,
        eventBus = _ref.eventBus,
        _ref$contextMenuItems = _ref.contextMenuItems,
        contextMenuItems = _ref$contextMenuItems === void 0 ? null : _ref$contextMenuItems;

    _classCallCheck(this, PDFPresentationMode);

    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", function () {
        _this.contextMenuOpen = false;

        _this.eventBus.dispatch("firstpage", {
          source: _this
        });
      });
      contextMenuItems.contextLastPage.addEventListener("click", function () {
        _this.contextMenuOpen = false;

        _this.eventBus.dispatch("lastpage", {
          source: _this
        });
      });
      contextMenuItems.contextPageRotateCw.addEventListener("click", function () {
        _this.contextMenuOpen = false;

        _this.eventBus.dispatch("rotatecw", {
          source: _this
        });
      });
      contextMenuItems.contextPageRotateCcw.addEventListener("click", function () {
        _this.contextMenuOpen = false;

        _this.eventBus.dispatch("rotateccw", {
          source: _this
        });
      });
    }
  }

  _createClass(PDFPresentationMode, [{
    key: "request",
    value: function 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;
    }
  }, {
    key: "_mouseWheel",
    value: function _mouseWheel(evt) {
      if (!this.active) {
        return;
      }

      evt.preventDefault();
      var delta = (0, _ui_utils.normalizeWheelEventDelta)(evt);
      var currentTime = new Date().getTime();
      var 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) {
        var totalDelta = this.mouseScrollDelta;

        this._resetMouseScrollState();

        var success = totalDelta > 0 ? this._goToPreviousPage() : this._goToNextPage();

        if (success) {
          this.mouseScrollTimeStamp = currentTime;
        }
      }
    }
  }, {
    key: "_goToPreviousPage",
    value: function _goToPreviousPage() {
      var page = this.pdfViewer.currentPageNumber;

      if (page <= 1) {
        return false;
      }

      this.pdfViewer.currentPageNumber = page - 1;
      return true;
    }
  }, {
    key: "_goToNextPage",
    value: function _goToNextPage() {
      var page = this.pdfViewer.currentPageNumber;

      if (page >= this.pdfViewer.pagesCount) {
        return false;
      }

      this.pdfViewer.currentPageNumber = page + 1;
      return true;
    }
  }, {
    key: "_notifyStateChange",
    value: function _notifyStateChange() {
      this.eventBus.dispatch("presentationmodechanged", {
        source: this,
        active: this.active,
        switchInProgress: !!this.switchInProgress
      });
    }
  }, {
    key: "_setSwitchInProgress",
    value: function _setSwitchInProgress() {
      var _this2 = this;

      if (this.switchInProgress) {
        clearTimeout(this.switchInProgress);
      }

      this.switchInProgress = setTimeout(function () {
        _this2._removeFullscreenChangeListeners();

        delete _this2.switchInProgress;

        _this2._notifyStateChange();
      }, DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
    }
  }, {
    key: "_resetSwitchInProgress",
    value: function _resetSwitchInProgress() {
      if (this.switchInProgress) {
        clearTimeout(this.switchInProgress);
        delete this.switchInProgress;
      }
    }
  }, {
    key: "_enter",
    value: function _enter() {
      var _this3 = this;

      this.active = true;

      this._resetSwitchInProgress();

      this._notifyStateChange();

      this.container.classList.add(ACTIVE_SELECTOR);
      setTimeout(function () {
        _this3.pdfViewer.currentPageNumber = _this3.args.page;
        _this3.pdfViewer.currentScaleValue = "page-fit";
      }, 0);

      this._addWindowListeners();

      this._showControls();

      this.contextMenuOpen = false;
      this.container.setAttribute("contextmenu", "viewerContextMenu");
      window.getSelection().removeAllRanges();
    }
  }, {
    key: "_exit",
    value: function _exit() {
      var _this4 = this;

      var page = this.pdfViewer.currentPageNumber;
      this.container.classList.remove(ACTIVE_SELECTOR);
      setTimeout(function () {
        _this4.active = false;

        _this4._removeFullscreenChangeListeners();

        _this4._notifyStateChange();

        _this4.pdfViewer.currentScaleValue = _this4.args.previousScale;
        _this4.pdfViewer.currentPageNumber = page;
        _this4.args = null;
      }, 0);

      this._removeWindowListeners();

      this._hideControls();

      this._resetMouseScrollState();

      this.container.removeAttribute("contextmenu");
      this.contextMenuOpen = false;
    }
  }, {
    key: "_mouseDown",
    value: function _mouseDown(evt) {
      if (this.contextMenuOpen) {
        this.contextMenuOpen = false;
        evt.preventDefault();
        return;
      }

      if (evt.button === 0) {
        var isInternalLink = evt.target.href && evt.target.classList.contains("internalLink");

        if (!isInternalLink) {
          evt.preventDefault();

          if (evt.shiftKey) {
            this._goToPreviousPage();
          } else {
            this._goToNextPage();
          }
        }
      }
    }
  }, {
    key: "_contextMenu",
    value: function _contextMenu() {
      this.contextMenuOpen = true;
    }
  }, {
    key: "_showControls",
    value: function _showControls() {
      var _this5 = this;

      if (this.controlsTimeout) {
        clearTimeout(this.controlsTimeout);
      } else {
        this.container.classList.add(CONTROLS_SELECTOR);
      }

      this.controlsTimeout = setTimeout(function () {
        _this5.container.classList.remove(CONTROLS_SELECTOR);

        delete _this5.controlsTimeout;
      }, DELAY_BEFORE_HIDING_CONTROLS);
    }
  }, {
    key: "_hideControls",
    value: function _hideControls() {
      if (!this.controlsTimeout) {
        return;
      }

      clearTimeout(this.controlsTimeout);
      this.container.classList.remove(CONTROLS_SELECTOR);
      delete this.controlsTimeout;
    }
  }, {
    key: "_resetMouseScrollState",
    value: function _resetMouseScrollState() {
      this.mouseScrollTimeStamp = 0;
      this.mouseScrollDelta = 0;
    }
  }, {
    key: "_touchSwipe",
    value: function _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;
          }

          var delta = 0;
          var dx = this.touchSwipeState.endX - this.touchSwipeState.startX;
          var dy = this.touchSwipeState.endY - this.touchSwipeState.startY;
          var 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;
      }
    }
  }, {
    key: "_addWindowListeners",
    value: function _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);
    }
  }, {
    key: "_removeWindowListeners",
    value: function _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;
    }
  }, {
    key: "_fullscreenChange",
    value: function _fullscreenChange() {
      if (this.isFullscreen) {
        this._enter();
      } else {
        this._exit();
      }
    }
  }, {
    key: "_addFullscreenChangeListeners",
    value: function _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);
    }
  }, {
    key: "_removeFullscreenChangeListeners",
    value: function _removeFullscreenChangeListeners() {
      window.removeEventListener("fullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("mozfullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("webkitfullscreenchange", this.fullscreenChangeBind);
      window.removeEventListener("MSFullscreenChange", this.fullscreenChangeBind);
      delete this.fullscreenChangeBind;
    }
  }, {
    key: "isFullscreen",
    get: function get() {
      return !!(document.fullscreenElement || document.mozFullScreen || document.webkitIsFullScreen || document.msFullscreenElement);
    }
  }]);

  return PDFPresentationMode;
}();

exports.PDFPresentationMode = PDFPresentationMode;

/***/ }),
/* 26 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFSidebarResizer = void 0;

var _ui_utils = __webpack_require__(5);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var SIDEBAR_WIDTH_VAR = "--sidebar-width";
var SIDEBAR_MIN_WIDTH = 200;
var SIDEBAR_RESIZING_CLASS = "sidebarResizing";

var PDFSidebarResizer = /*#__PURE__*/function () {
  function PDFSidebarResizer(options, eventBus) {
    var _this = this;

    var l10n = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _ui_utils.NullL10n;

    _classCallCheck(this, PDFSidebarResizer);

    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 * ".concat(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(function (dir) {
      _this.isRTL = dir === "rtl";
    });

    this._addEventListeners();
  }

  _createClass(PDFSidebarResizer, [{
    key: "_updateWidth",
    value: function _updateWidth() {
      var width = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

      if (!this.enabled) {
        return false;
      }

      var 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, "".concat(newWidth, "px"));
      return true;
    }
  }, {
    key: "_mouseMove",
    value: function _mouseMove(evt) {
      var width = evt.clientX;

      if (this.isRTL) {
        width = this.outerContainerWidth - width;
      }

      this._updateWidth(width);
    }
  }, {
    key: "_mouseUp",
    value: function _mouseUp(evt) {
      this.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);
      this.eventBus.dispatch("resize", {
        source: this
      });
      var _boundEvents = this._boundEvents;
      window.removeEventListener("mousemove", _boundEvents.mouseMove);
      window.removeEventListener("mouseup", _boundEvents.mouseUp);
    }
  }, {
    key: "_addEventListeners",
    value: function _addEventListeners() {
      var _this2 = this;

      if (!this.enabled) {
        return;
      }

      var _boundEvents = this._boundEvents;
      _boundEvents.mouseMove = this._mouseMove.bind(this);
      _boundEvents.mouseUp = this._mouseUp.bind(this);
      this.resizer.addEventListener("mousedown", function (evt) {
        if (evt.button !== 0) {
          return;
        }

        _this2.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);

        window.addEventListener("mousemove", _boundEvents.mouseMove);
        window.addEventListener("mouseup", _boundEvents.mouseUp);
      });

      this.eventBus._on("sidebarviewchanged", function (evt) {
        _this2.sidebarOpen = !!(evt && evt.view);
      });

      this.eventBus._on("resize", function (evt) {
        if (!evt || evt.source !== window) {
          return;
        }

        _this2._outerContainerWidth = null;

        if (!_this2._width) {
          return;
        }

        if (!_this2.sidebarOpen) {
          _this2._updateWidth(_this2._width);

          return;
        }

        _this2.outerContainer.classList.add(SIDEBAR_RESIZING_CLASS);

        var updated = _this2._updateWidth(_this2._width);

        Promise.resolve().then(function () {
          _this2.outerContainer.classList.remove(SIDEBAR_RESIZING_CLASS);

          if (updated) {
            _this2.eventBus.dispatch("resize", {
              source: _this2
            });
          }
        });
      });
    }
  }, {
    key: "outerContainerWidth",
    get: function get() {
      if (!this._outerContainerWidth) {
        this._outerContainerWidth = this.outerContainer.clientWidth;
      }

      return this._outerContainerWidth;
    }
  }]);

  return PDFSidebarResizer;
}();

exports.PDFSidebarResizer = PDFSidebarResizer;

/***/ }),
/* 27 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFThumbnailViewer = void 0;

var _ui_utils = __webpack_require__(5);

var _pdf_thumbnail_view = __webpack_require__(28);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var THUMBNAIL_SCROLL_MARGIN = -19;
var THUMBNAIL_SELECTED_CLASS = "selected";

var PDFThumbnailViewer = /*#__PURE__*/function () {
  function PDFThumbnailViewer(_ref) {
    var _this = this;

    var container = _ref.container,
        eventBus = _ref.eventBus,
        linkService = _ref.linkService,
        renderingQueue = _ref.renderingQueue,
        _ref$l10n = _ref.l10n,
        l10n = _ref$l10n === void 0 ? _ui_utils.NullL10n : _ref$l10n;

    _classCallCheck(this, PDFThumbnailViewer);

    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();

    eventBus._on("optionalcontentconfigchanged", function () {
      _this._setImageDisabled = true;
    });
  }

  _createClass(PDFThumbnailViewer, [{
    key: "_scrollUpdated",
    value: function _scrollUpdated() {
      this.renderingQueue.renderHighestPriority();
    }
  }, {
    key: "getThumbnail",
    value: function getThumbnail(index) {
      return this._thumbnails[index];
    }
  }, {
    key: "_getVisibleThumbs",
    value: function _getVisibleThumbs() {
      return (0, _ui_utils.getVisibleElements)(this.container, this._thumbnails);
    }
  }, {
    key: "scrollThumbnailIntoView",
    value: function scrollThumbnailIntoView(pageNumber) {
      if (!this.pdfDocument) {
        return;
      }

      var thumbnailView = this._thumbnails[pageNumber - 1];

      if (!thumbnailView) {
        console.error('scrollThumbnailIntoView: Invalid "pageNumber" parameter.');
        return;
      }

      if (pageNumber !== this._currentPageNumber) {
        var prevThumbnailView = this._thumbnails[this._currentPageNumber - 1];
        prevThumbnailView.div.classList.remove(THUMBNAIL_SELECTED_CLASS);
        thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS);
      }

      var visibleThumbs = this._getVisibleThumbs();

      var numVisibleThumbs = visibleThumbs.views.length;

      if (numVisibleThumbs > 0) {
        var first = visibleThumbs.first.id;
        var last = numVisibleThumbs > 1 ? visibleThumbs.last.id : first;
        var 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;
    }
  }, {
    key: "cleanup",
    value: function cleanup() {
      _pdf_thumbnail_view.PDFThumbnailView.cleanup();
    }
  }, {
    key: "_resetView",
    value: function _resetView() {
      this._thumbnails = [];
      this._currentPageNumber = 1;
      this._pageLabels = null;
      this._pagesRotation = 0;
      this._optionalContentConfigPromise = null;
      this._pagesRequests = new WeakMap();
      this._setImageDisabled = false;
      this.container.textContent = "";
    }
  }, {
    key: "setDocument",
    value: function setDocument(pdfDocument) {
      var _this2 = this;

      if (this.pdfDocument) {
        this._cancelRendering();

        this._resetView();
      }

      this.pdfDocument = pdfDocument;

      if (!pdfDocument) {
        return;
      }

      var firstPagePromise = pdfDocument.getPage(1);
      var optionalContentConfigPromise = pdfDocument.getOptionalContentConfig();
      firstPagePromise.then(function (firstPdfPage) {
        _this2._optionalContentConfigPromise = optionalContentConfigPromise;
        var pagesCount = pdfDocument.numPages;
        var viewport = firstPdfPage.getViewport({
          scale: 1
        });

        var checkSetImageDisabled = function checkSetImageDisabled() {
          return _this2._setImageDisabled;
        };

        for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
          var thumbnail = new _pdf_thumbnail_view.PDFThumbnailView({
            container: _this2.container,
            id: pageNum,
            defaultViewport: viewport.clone(),
            optionalContentConfigPromise: optionalContentConfigPromise,
            linkService: _this2.linkService,
            renderingQueue: _this2.renderingQueue,
            checkSetImageDisabled: checkSetImageDisabled,
            disableCanvasToImageConversion: false,
            l10n: _this2.l10n
          });

          _this2._thumbnails.push(thumbnail);
        }

        var firstThumbnailView = _this2._thumbnails[0];

        if (firstThumbnailView) {
          firstThumbnailView.setPdfPage(firstPdfPage);
        }

        var thumbnailView = _this2._thumbnails[_this2._currentPageNumber - 1];
        thumbnailView.div.classList.add(THUMBNAIL_SELECTED_CLASS);
      })["catch"](function (reason) {
        console.error("Unable to initialize thumbnail viewer", reason);
      });
    }
  }, {
    key: "_cancelRendering",
    value: function _cancelRendering() {
      for (var i = 0, ii = this._thumbnails.length; i < ii; i++) {
        if (this._thumbnails[i]) {
          this._thumbnails[i].cancelRendering();
        }
      }
    }
  }, {
    key: "setPageLabels",
    value: function 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 (var i = 0, ii = this._thumbnails.length; i < ii; i++) {
        var label = this._pageLabels && this._pageLabels[i];

        this._thumbnails[i].setPageLabel(label);
      }
    }
  }, {
    key: "_ensurePdfPageLoaded",
    value: function _ensurePdfPageLoaded(thumbView) {
      var _this3 = this;

      if (thumbView.pdfPage) {
        return Promise.resolve(thumbView.pdfPage);
      }

      if (this._pagesRequests.has(thumbView)) {
        return this._pagesRequests.get(thumbView);
      }

      var promise = this.pdfDocument.getPage(thumbView.id).then(function (pdfPage) {
        if (!thumbView.pdfPage) {
          thumbView.setPdfPage(pdfPage);
        }

        _this3._pagesRequests["delete"](thumbView);

        return pdfPage;
      })["catch"](function (reason) {
        console.error("Unable to get page for thumb view", reason);

        _this3._pagesRequests["delete"](thumbView);
      });

      this._pagesRequests.set(thumbView, promise);

      return promise;
    }
  }, {
    key: "forceRendering",
    value: function forceRendering() {
      var _this4 = this;

      var visibleThumbs = this._getVisibleThumbs();

      var thumbView = this.renderingQueue.getHighestPriority(visibleThumbs, this._thumbnails, this.scroll.down);

      if (thumbView) {
        this._ensurePdfPageLoaded(thumbView).then(function () {
          _this4.renderingQueue.renderView(thumbView);
        });

        return true;
      }

      return false;
    }
  }, {
    key: "pagesRotation",
    get: function get() {
      return this._pagesRotation;
    },
    set: function set(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 (var i = 0, ii = this._thumbnails.length; i < ii; i++) {
        this._thumbnails[i].update(rotation);
      }
    }
  }]);

  return PDFThumbnailViewer;
}();

exports.PDFThumbnailViewer = PDFThumbnailViewer;

/***/ }),
/* 28 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFThumbnailView = void 0;

var _pdfjsLib = __webpack_require__(8);

var _ui_utils = __webpack_require__(5);

var _pdf_rendering_queue = __webpack_require__(11);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var MAX_NUM_SCALING_STEPS = 3;
var THUMBNAIL_CANVAS_BORDER_WIDTH = 1;
var THUMBNAIL_WIDTH = 98;

var TempImageFactory = function TempImageFactoryClosure() {
  var tempCanvasCache = null;
  return {
    getCanvas: function getCanvas(width, height) {
      var tempCanvas = tempCanvasCache;

      if (!tempCanvas) {
        tempCanvas = document.createElement("canvas");
        tempCanvasCache = tempCanvas;
      }

      tempCanvas.width = width;
      tempCanvas.height = height;
      tempCanvas.mozOpaque = true;
      var 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: function destroyCanvas() {
      var tempCanvas = tempCanvasCache;

      if (tempCanvas) {
        tempCanvas.width = 0;
        tempCanvas.height = 0;
      }

      tempCanvasCache = null;
    }
  };
}();

var PDFThumbnailView = /*#__PURE__*/function () {
  function PDFThumbnailView(_ref) {
    var container = _ref.container,
        id = _ref.id,
        defaultViewport = _ref.defaultViewport,
        optionalContentConfigPromise = _ref.optionalContentConfigPromise,
        linkService = _ref.linkService,
        renderingQueue = _ref.renderingQueue,
        checkSetImageDisabled = _ref.checkSetImageDisabled,
        _ref$disableCanvasToI = _ref.disableCanvasToImageConversion,
        disableCanvasToImageConversion = _ref$disableCanvasToI === void 0 ? false : _ref$disableCanvasToI,
        _ref$l10n = _ref.l10n,
        l10n = _ref$l10n === void 0 ? _ui_utils.NullL10n : _ref$l10n;

    _classCallCheck(this, PDFThumbnailView);

    this.id = id;
    this.renderingId = "thumbnail" + id;
    this.pageLabel = null;
    this.pdfPage = null;
    this.rotation = 0;
    this.viewport = defaultViewport;
    this.pdfPageRotate = defaultViewport.rotation;
    this._optionalContentConfigPromise = optionalContentConfigPromise || null;
    this.linkService = linkService;
    this.renderingQueue = renderingQueue;
    this.renderTask = null;
    this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
    this.resume = null;

    this._checkSetImageDisabled = checkSetImageDisabled || function () {
      return false;
    };

    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;
    var anchor = document.createElement("a");
    anchor.href = linkService.getAnchorUrl("#page=" + id);

    this._thumbPageTitle.then(function (msg) {
      anchor.title = msg;
    });

    anchor.onclick = function () {
      linkService.page = id;
      return false;
    };

    this.anchor = anchor;
    var div = document.createElement("div");
    div.className = "thumbnail";
    div.setAttribute("data-page-number", this.id);
    this.div = div;
    var ring = document.createElement("div");
    ring.className = "thumbnailSelectionRing";
    var 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);
  }

  _createClass(PDFThumbnailView, [{
    key: "setPdfPage",
    value: function setPdfPage(pdfPage) {
      this.pdfPage = pdfPage;
      this.pdfPageRotate = pdfPage.rotate;
      var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = pdfPage.getViewport({
        scale: 1,
        rotation: totalRotation
      });
      this.reset();
    }
  }, {
    key: "reset",
    value: function 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");
      var ring = this.ring;
      var childNodes = ring.childNodes;

      for (var i = childNodes.length - 1; i >= 0; i--) {
        ring.removeChild(childNodes[i]);
      }

      var 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;
      }
    }
  }, {
    key: "update",
    value: function update(rotation) {
      if (typeof rotation !== "undefined") {
        this.rotation = rotation;
      }

      var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = this.viewport.clone({
        scale: 1,
        rotation: totalRotation
      });
      this.reset();
    }
  }, {
    key: "cancelRendering",
    value: function cancelRendering() {
      if (this.renderTask) {
        this.renderTask.cancel();
        this.renderTask = null;
      }

      this.resume = null;
    }
  }, {
    key: "_getPageDrawContext",
    value: function _getPageDrawContext() {
      var noCtxScale = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var canvas = document.createElement("canvas");
      this.canvas = canvas;
      canvas.mozOpaque = true;
      var ctx = canvas.getContext("2d", {
        alpha: false
      });
      var 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;
    }
  }, {
    key: "_convertCanvasToImage",
    value: function _convertCanvasToImage() {
      var _this = this;

      if (!this.canvas) {
        return;
      }

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
        return;
      }

      var className = "thumbnailImage";

      if (this.disableCanvasToImageConversion) {
        this.canvas.className = className;

        this._thumbPageCanvas.then(function (msg) {
          _this.canvas.setAttribute("aria-label", msg);
        });

        this.div.setAttribute("data-loaded", true);
        this.ring.appendChild(this.canvas);
        return;
      }

      var image = document.createElement("img");
      image.className = className;

      this._thumbPageCanvas.then(function (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;
    }
  }, {
    key: "draw",
    value: function draw() {
      var _this2 = this;

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        console.error("Must be in new state before drawing");
        return Promise.resolve(undefined);
      }

      var pdfPage = this.pdfPage;

      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;
      var renderCapability = (0, _pdfjsLib.createPromiseCapability)();

      var finishRenderTask = function finishRenderTask(error) {
        if (renderTask === _this2.renderTask) {
          _this2.renderTask = null;
        }

        if (error instanceof _pdfjsLib.RenderingCancelledException) {
          renderCapability.resolve(undefined);
          return;
        }

        _this2.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;

        _this2._convertCanvasToImage();

        if (!error) {
          renderCapability.resolve(undefined);
        } else {
          renderCapability.reject(error);
        }
      };

      var ctx = this._getPageDrawContext();

      var drawViewport = this.viewport.clone({
        scale: this.scale
      });

      var renderContinueCallback = function renderContinueCallback(cont) {
        if (!_this2.renderingQueue.isHighestPriority(_this2)) {
          _this2.renderingState = _pdf_rendering_queue.RenderingStates.PAUSED;

          _this2.resume = function () {
            _this2.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
            cont();
          };

          return;
        }

        cont();
      };

      var renderContext = {
        canvasContext: ctx,
        viewport: drawViewport,
        optionalContentConfigPromise: this._optionalContentConfigPromise
      };
      var renderTask = this.renderTask = pdfPage.render(renderContext);
      renderTask.onContinue = renderContinueCallback;
      renderTask.promise.then(function () {
        finishRenderTask(null);
      }, function (error) {
        finishRenderTask(error);
      });
      return renderCapability.promise;
    }
  }, {
    key: "setImage",
    value: function setImage(pageView) {
      if (this._checkSetImageDisabled()) {
        return;
      }

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        return;
      }

      var img = pageView.canvas;

      if (!img) {
        return;
      }

      if (!this.pdfPage) {
        this.setPdfPage(pageView.pdfPage);
      }

      this.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;

      var ctx = this._getPageDrawContext(true);

      var 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;
      }

      var reducedWidth = canvas.width << MAX_NUM_SCALING_STEPS;
      var reducedHeight = canvas.height << MAX_NUM_SCALING_STEPS;
      var reducedImage = TempImageFactory.getCanvas(reducedWidth, reducedHeight);
      var 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();
    }
  }, {
    key: "setPageLabel",
    value: function setPageLabel(label) {
      var _this3 = this;

      this.pageLabel = typeof label === "string" ? label : null;

      this._thumbPageTitle.then(function (msg) {
        _this3.anchor.title = msg;
      });

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
        return;
      }

      this._thumbPageCanvas.then(function (msg) {
        if (_this3.image) {
          _this3.image.setAttribute("aria-label", msg);
        } else if (_this3.disableCanvasToImageConversion && _this3.canvas) {
          _this3.canvas.setAttribute("aria-label", msg);
        }
      });
    }
  }, {
    key: "_thumbPageTitle",
    get: function get() {
      var _this$pageLabel;

      return this.l10n.get("thumb_page_title", {
        page: (_this$pageLabel = this.pageLabel) != null ? _this$pageLabel : this.id
      }, "Page {{page}}");
    }
  }, {
    key: "_thumbPageCanvas",
    get: function get() {
      var _this$pageLabel2;

      return this.l10n.get("thumb_page_canvas", {
        page: (_this$pageLabel2 = this.pageLabel) != null ? _this$pageLabel2 : this.id
      }, "Thumbnail of Page {{page}}");
    }
  }], [{
    key: "cleanup",
    value: function cleanup() {
      TempImageFactory.destroyCanvas();
    }
  }]);

  return PDFThumbnailView;
}();

exports.PDFThumbnailView = PDFThumbnailView;

/***/ }),
/* 29 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFViewer = void 0;

var _base_viewer = __webpack_require__(30);

var _pdfjsLib = __webpack_require__(8);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var PDFViewer = /*#__PURE__*/function (_BaseViewer) {
  _inherits(PDFViewer, _BaseViewer);

  var _super = _createSuper(PDFViewer);

  function PDFViewer() {
    _classCallCheck(this, PDFViewer);

    return _super.apply(this, arguments);
  }

  _createClass(PDFViewer, [{
    key: "_scrollIntoView",
    value: function _scrollIntoView(_ref) {
      var pageDiv = _ref.pageDiv,
          _ref$pageSpot = _ref.pageSpot,
          pageSpot = _ref$pageSpot === void 0 ? null : _ref$pageSpot,
          _ref$pageNumber = _ref.pageNumber,
          pageNumber = _ref$pageNumber === void 0 ? null : _ref$pageNumber;

      if (!pageSpot && !this.isInPresentationMode) {
        var left = pageDiv.offsetLeft + pageDiv.clientLeft;
        var right = left + pageDiv.clientWidth;
        var _this$container = this.container,
            scrollLeft = _this$container.scrollLeft,
            clientWidth = _this$container.clientWidth;

        if (this._isScrollModeHorizontal || left < scrollLeft || right > scrollLeft + clientWidth) {
          pageSpot = {
            left: 0,
            top: 0
          };
        }
      }

      _get(_getPrototypeOf(PDFViewer.prototype), "_scrollIntoView", this).call(this, {
        pageDiv: pageDiv,
        pageSpot: pageSpot,
        pageNumber: pageNumber
      });
    }
  }, {
    key: "_getVisiblePages",
    value: function _getVisiblePages() {
      if (this.isInPresentationMode) {
        return this._getCurrentVisiblePage();
      }

      return _get(_getPrototypeOf(PDFViewer.prototype), "_getVisiblePages", this).call(this);
    }
  }, {
    key: "_updateHelper",
    value: function _updateHelper(visiblePages) {
      if (this.isInPresentationMode) {
        return;
      }

      var currentId = this._currentPageNumber;
      var stillFullyVisible = false;

      var _iterator = _createForOfIteratorHelper(visiblePages),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var page = _step.value;

          if (page.percent < 100) {
            break;
          }

          if (page.id === currentId) {
            stillFullyVisible = true;
            break;
          }
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      if (!stillFullyVisible) {
        currentId = visiblePages[0].id;
      }

      this._setCurrentPageNumber(currentId);
    }
  }, {
    key: "_viewerElement",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "_viewerElement", this.viewer);
    }
  }]);

  return PDFViewer;
}(_base_viewer.BaseViewer);

exports.PDFViewer = PDFViewer;

/***/ }),
/* 30 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BaseViewer = void 0;

var _ui_utils = __webpack_require__(5);

var _pdf_rendering_queue = __webpack_require__(11);

var _annotation_layer_builder = __webpack_require__(31);

var _pdfjsLib = __webpack_require__(8);

var _pdf_page_view = __webpack_require__(32);

var _pdf_link_service = __webpack_require__(23);

var _text_layer_builder = __webpack_require__(33);

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_CACHE_SIZE = 10;

function PDFPageViewBuffer(size) {
  var data = [];

  this.push = function (view) {
    var 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) {
      var pageIdsToKeep = new Set();

      for (var 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;
}

var BaseViewer = /*#__PURE__*/function () {
  function BaseViewer(options) {
    var _this = this;

    _classCallCheck(this, BaseViewer);

    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;

    if (!(this.container instanceof HTMLDivElement && this.viewer instanceof HTMLDivElement)) {
      throw new Error("Invalid `container` and/or `viewer` option.");
    }

    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 = typeof options.renderInteractiveForms === "boolean" ? options.renderInteractiveForms : true;
    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(function () {
      _this.eventBus.dispatch("baseviewerinit", {
        source: _this
      });
    });
  }

  _createClass(BaseViewer, [{
    key: "getPageView",
    value: function getPageView(index) {
      return this._pages[index];
    }
  }, {
    key: "_setCurrentPageNumber",
    value: function _setCurrentPageNumber(val) {
      var resetCurrentPageView = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 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;
    }
  }, {
    key: "_onePageRenderedOrForceFetch",
    value: function _onePageRenderedOrForceFetch() {
      if (!this.container.offsetParent || this._getVisiblePages().views.length === 0) {
        return Promise.resolve();
      }

      return this._onePageRenderedCapability.promise;
    }
  }, {
    key: "setDocument",
    value: function setDocument(pdfDocument) {
      var _this2 = this;

      if (this.pdfDocument) {
        this._cancelRendering();

        this._resetView();

        if (this.findController) {
          this.findController.setDocument(null);
        }
      }

      this.pdfDocument = pdfDocument;

      if (!pdfDocument) {
        return;
      }

      var pagesCount = pdfDocument.numPages;
      var firstPagePromise = pdfDocument.getPage(1);
      var annotationStorage = pdfDocument.annotationStorage;
      var optionalContentConfigPromise = pdfDocument.getOptionalContentConfig();

      this._pagesCapability.promise.then(function () {
        _this2.eventBus.dispatch("pagesloaded", {
          source: _this2,
          pagesCount: pagesCount
        });
      });

      this._onBeforeDraw = function (evt) {
        var pageView = _this2._pages[evt.pageNumber - 1];

        if (!pageView) {
          return;
        }

        _this2._buffer.push(pageView);
      };

      this.eventBus._on("pagerender", this._onBeforeDraw);

      this._onAfterDraw = function (evt) {
        if (evt.cssTransform || _this2._onePageRenderedCapability.settled) {
          return;
        }

        _this2._onePageRenderedCapability.resolve();

        _this2.eventBus._off("pagerendered", _this2._onAfterDraw);

        _this2._onAfterDraw = null;
      };

      this.eventBus._on("pagerendered", this._onAfterDraw);

      firstPagePromise.then(function (firstPdfPage) {
        _this2._firstPageCapability.resolve(firstPdfPage);

        _this2._optionalContentConfigPromise = optionalContentConfigPromise;
        var scale = _this2.currentScale;
        var viewport = firstPdfPage.getViewport({
          scale: scale * _ui_utils.CSS_UNITS
        });
        var textLayerFactory = _this2.textLayerMode !== _ui_utils.TextLayerMode.DISABLE ? _this2 : null;

        for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
          var pageView = new _pdf_page_view.PDFPageView({
            container: _this2._viewerElement,
            eventBus: _this2.eventBus,
            id: pageNum,
            scale: scale,
            defaultViewport: viewport.clone(),
            annotationStorage: annotationStorage,
            optionalContentConfigPromise: optionalContentConfigPromise,
            renderingQueue: _this2.renderingQueue,
            textLayerFactory: textLayerFactory,
            textLayerMode: _this2.textLayerMode,
            annotationLayerFactory: _this2,
            imageResourcesPath: _this2.imageResourcesPath,
            renderInteractiveForms: _this2.renderInteractiveForms,
            renderer: _this2.renderer,
            enableWebGL: _this2.enableWebGL,
            useOnlyCssZoom: _this2.useOnlyCssZoom,
            maxCanvasPixels: _this2.maxCanvasPixels,
            l10n: _this2.l10n
          });

          _this2._pages.push(pageView);
        }

        var firstPageView = _this2._pages[0];

        if (firstPageView) {
          firstPageView.setPdfPage(firstPdfPage);

          _this2.linkService.cachePageRef(1, firstPdfPage.ref);
        }

        if (_this2._spreadMode !== _ui_utils.SpreadMode.NONE) {
          _this2._updateSpreadMode();
        }

        _this2._onePageRenderedOrForceFetch().then(function () {
          if (_this2.findController) {
            _this2.findController.setDocument(pdfDocument);
          }

          if (pdfDocument.loadingParams.disableAutoFetch || pagesCount > 7500) {
            _this2._pagesCapability.resolve();

            return;
          }

          var getPagesLeft = pagesCount - 1;

          if (getPagesLeft <= 0) {
            _this2._pagesCapability.resolve();

            return;
          }

          var _loop = function _loop(_pageNum) {
            pdfDocument.getPage(_pageNum).then(function (pdfPage) {
              var pageView = _this2._pages[_pageNum - 1];

              if (!pageView.pdfPage) {
                pageView.setPdfPage(pdfPage);
              }

              _this2.linkService.cachePageRef(_pageNum, pdfPage.ref);

              if (--getPagesLeft === 0) {
                _this2._pagesCapability.resolve();
              }
            }, function (reason) {
              console.error("Unable to get page ".concat(_pageNum, " to initialize viewer"), reason);

              if (--getPagesLeft === 0) {
                _this2._pagesCapability.resolve();
              }
            });
          };

          for (var _pageNum = 2; _pageNum <= pagesCount; ++_pageNum) {
            _loop(_pageNum);
          }
        });

        _this2.eventBus.dispatch("pagesinit", {
          source: _this2
        });

        if (_this2.defaultRenderingQueue) {
          _this2.update();
        }
      })["catch"](function (reason) {
        console.error("Unable to initialize viewer", reason);
      });
    }
  }, {
    key: "setPageLabels",
    value: function 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("".concat(this._name, ".setPageLabels: Invalid page labels."));
      } else {
        this._pageLabels = labels;
      }

      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        var pageView = this._pages[i];
        var label = this._pageLabels && this._pageLabels[i];
        pageView.setPageLabel(label);
      }
    }
  }, {
    key: "_resetView",
    value: function _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._optionalContentConfigPromise = null;
      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();
    }
  }, {
    key: "_scrollUpdate",
    value: function _scrollUpdate() {
      if (this.pagesCount === 0) {
        return;
      }

      this.update();
    }
  }, {
    key: "_scrollIntoView",
    value: function _scrollIntoView(_ref) {
      var pageDiv = _ref.pageDiv,
          _ref$pageSpot = _ref.pageSpot,
          pageSpot = _ref$pageSpot === void 0 ? null : _ref$pageSpot,
          _ref$pageNumber = _ref.pageNumber,
          pageNumber = _ref$pageNumber === void 0 ? null : _ref$pageNumber;
      (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
    }
  }, {
    key: "_setScaleUpdatePages",
    value: function _setScaleUpdatePages(newScale, newValue) {
      var noScroll = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var preset = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
      this._currentScaleValue = newValue.toString();

      if (isSameScale(this._currentScale, newScale)) {
        if (preset) {
          this.eventBus.dispatch("scalechanging", {
            source: this,
            scale: newScale,
            presetValue: newValue
          });
        }

        return;
      }

      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        this._pages[i].update(newScale);
      }

      this._currentScale = newScale;

      if (!noScroll) {
        var 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();
      }
    }
  }, {
    key: "_setScale",
    value: function _setScale(value) {
      var noScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var scale = parseFloat(value);

      if (scale > 0) {
        this._setScaleUpdatePages(scale, value, noScroll, false);
      } else {
        var currentPage = this._pages[this._currentPageNumber - 1];

        if (!currentPage) {
          return;
        }

        var noPadding = this.isInPresentationMode || this.removePageBorders;
        var hPadding = noPadding ? 0 : _ui_utils.SCROLLBAR_PADDING;
        var vPadding = noPadding ? 0 : _ui_utils.VERTICAL_PADDING;

        if (!noPadding && this._isScrollModeHorizontal) {
          var _ref2 = [vPadding, hPadding];
          hPadding = _ref2[0];
          vPadding = _ref2[1];
        }

        var pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale;
        var 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":
            var horizontalScale = (0, _ui_utils.isPortraitOrientation)(currentPage) ? pageWidthScale : Math.min(pageHeightScale, pageWidthScale);
            scale = Math.min(_ui_utils.MAX_AUTO_SCALE, horizontalScale);
            break;

          default:
            console.error("".concat(this._name, "._setScale: \"").concat(value, "\" is an unknown zoom value."));
            return;
        }

        this._setScaleUpdatePages(scale, value, noScroll, true);
      }
    }
  }, {
    key: "_resetCurrentPageView",
    value: function _resetCurrentPageView() {
      if (this.isInPresentationMode) {
        this._setScale(this._currentScaleValue, true);
      }

      var pageView = this._pages[this._currentPageNumber - 1];

      this._scrollIntoView({
        pageDiv: pageView.div
      });
    }
  }, {
    key: "scrollPageIntoView",
    value: function scrollPageIntoView(_ref3) {
      var pageNumber = _ref3.pageNumber,
          _ref3$destArray = _ref3.destArray,
          destArray = _ref3$destArray === void 0 ? null : _ref3$destArray,
          _ref3$allowNegativeOf = _ref3.allowNegativeOffset,
          allowNegativeOffset = _ref3$allowNegativeOf === void 0 ? false : _ref3$allowNegativeOf,
          _ref3$ignoreDestinati = _ref3.ignoreDestinationZoom,
          ignoreDestinationZoom = _ref3$ignoreDestinati === void 0 ? false : _ref3$ignoreDestinati;

      if (!this.pdfDocument) {
        return;
      }

      var pageView = Number.isInteger(pageNumber) && this._pages[pageNumber - 1];

      if (!pageView) {
        console.error("".concat(this._name, ".scrollPageIntoView: ") + "\"".concat(pageNumber, "\" is not a valid pageNumber parameter."));
        return;
      }

      if (this.isInPresentationMode || !destArray) {
        this._setCurrentPageNumber(pageNumber, true);

        return;
      }

      var x = 0,
          y = 0;
      var width = 0,
          height = 0,
          widthScale,
          heightScale;
      var changeOrientation = pageView.rotation % 180 !== 0;
      var pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / _ui_utils.CSS_UNITS;
      var pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / _ui_utils.CSS_UNITS;
      var 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;
          var hPadding = this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
          var 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("".concat(this._name, ".scrollPageIntoView: ") + "\"".concat(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: pageNumber
        });

        return;
      }

      var boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)];
      var left = Math.min(boundingRect[0][0], boundingRect[1][0]);
      var 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: left,
          top: top
        },
        pageNumber: pageNumber
      });
    }
  }, {
    key: "_updateLocation",
    value: function _updateLocation(firstPage) {
      var currentScale = this._currentScale;
      var currentScaleValue = this._currentScaleValue;
      var normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue;
      var pageNumber = firstPage.id;
      var pdfOpenParams = "#page=" + pageNumber;
      pdfOpenParams += "&zoom=" + normalizedScaleValue;
      var currentPageView = this._pages[pageNumber - 1];
      var container = this.container;
      var topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y);
      var intLeft = Math.round(topLeft[0]);
      var intTop = Math.round(topLeft[1]);
      pdfOpenParams += "," + intLeft + "," + intTop;
      this._location = {
        pageNumber: pageNumber,
        scale: normalizedScaleValue,
        top: intTop,
        left: intLeft,
        rotation: this._pagesRotation,
        pdfOpenParams: pdfOpenParams
      };
    }
  }, {
    key: "_updateHelper",
    value: function _updateHelper(visiblePages) {
      throw new Error("Not implemented: _updateHelper");
    }
  }, {
    key: "update",
    value: function update() {
      var visible = this._getVisiblePages();

      var visiblePages = visible.views,
          numVisiblePages = visiblePages.length;

      if (numVisiblePages === 0) {
        return;
      }

      var 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
      });
    }
  }, {
    key: "containsElement",
    value: function containsElement(element) {
      return this.container.contains(element);
    }
  }, {
    key: "focus",
    value: function focus() {
      this.container.focus();
    }
  }, {
    key: "_getCurrentVisiblePage",
    value: function _getCurrentVisiblePage() {
      if (!this.pagesCount) {
        return {
          views: []
        };
      }

      var pageView = this._pages[this._currentPageNumber - 1];
      var element = pageView.div;
      var view = {
        id: pageView.id,
        x: element.offsetLeft + element.clientLeft,
        y: element.offsetTop + element.clientTop,
        view: pageView
      };
      return {
        first: view,
        last: view,
        views: [view]
      };
    }
  }, {
    key: "_getVisiblePages",
    value: function _getVisiblePages() {
      return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true, this._isScrollModeHorizontal);
    }
  }, {
    key: "isPageVisible",
    value: function isPageVisible(pageNumber) {
      if (!this.pdfDocument) {
        return false;
      }

      if (pageNumber < 1 || pageNumber > this.pagesCount) {
        console.error("".concat(this._name, ".isPageVisible: \"").concat(pageNumber, "\" is out of bounds."));
        return false;
      }

      return this._getVisiblePages().views.some(function (view) {
        return view.id === pageNumber;
      });
    }
  }, {
    key: "cleanup",
    value: function cleanup() {
      for (var 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();
        }
      }
    }
  }, {
    key: "_cancelRendering",
    value: function _cancelRendering() {
      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        if (this._pages[i]) {
          this._pages[i].cancelRendering();
        }
      }
    }
  }, {
    key: "_ensurePdfPageLoaded",
    value: function _ensurePdfPageLoaded(pageView) {
      var _this3 = this;

      if (pageView.pdfPage) {
        return Promise.resolve(pageView.pdfPage);
      }

      if (this._pagesRequests.has(pageView)) {
        return this._pagesRequests.get(pageView);
      }

      var promise = this.pdfDocument.getPage(pageView.id).then(function (pdfPage) {
        if (!pageView.pdfPage) {
          pageView.setPdfPage(pdfPage);
        }

        _this3._pagesRequests["delete"](pageView);

        return pdfPage;
      })["catch"](function (reason) {
        console.error("Unable to get page for page view", reason);

        _this3._pagesRequests["delete"](pageView);
      });

      this._pagesRequests.set(pageView, promise);

      return promise;
    }
  }, {
    key: "forceRendering",
    value: function forceRendering(currentlyVisiblePages) {
      var _this4 = this;

      var visiblePages = currentlyVisiblePages || this._getVisiblePages();

      var scrollAhead = this._isScrollModeHorizontal ? this.scroll.right : this.scroll.down;
      var pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, scrollAhead);

      if (pageView) {
        this._ensurePdfPageLoaded(pageView).then(function () {
          _this4.renderingQueue.renderView(pageView);
        });

        return true;
      }

      return false;
    }
  }, {
    key: "createTextLayerBuilder",
    value: function createTextLayerBuilder(textLayerDiv, pageIndex, viewport) {
      var enhanceTextSelection = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
      var eventBus = arguments.length > 4 ? arguments[4] : undefined;
      return new _text_layer_builder.TextLayerBuilder({
        textLayerDiv: textLayerDiv,
        eventBus: eventBus,
        pageIndex: pageIndex,
        viewport: viewport,
        findController: this.isInPresentationMode ? null : this.findController,
        enhanceTextSelection: this.isInPresentationMode ? false : enhanceTextSelection
      });
    }
  }, {
    key: "createAnnotationLayerBuilder",
    value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
      var annotationStorage = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      var imageResourcesPath = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "";
      var renderInteractiveForms = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
      var l10n = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : _ui_utils.NullL10n;
      return new _annotation_layer_builder.AnnotationLayerBuilder({
        pageDiv: pageDiv,
        pdfPage: pdfPage,
        annotationStorage: annotationStorage,
        imageResourcesPath: imageResourcesPath,
        renderInteractiveForms: renderInteractiveForms,
        linkService: this.linkService,
        downloadManager: this.downloadManager,
        l10n: l10n
      });
    }
  }, {
    key: "getPagesOverview",
    value: function getPagesOverview() {
      var pagesOverview = this._pages.map(function (pageView) {
        var viewport = pageView.pdfPage.getViewport({
          scale: 1
        });
        return {
          width: viewport.width,
          height: viewport.height,
          rotation: viewport.rotation
        };
      });

      if (!this.enablePrintAutoRotate) {
        return pagesOverview;
      }

      return pagesOverview.map(function (size) {
        if ((0, _ui_utils.isPortraitOrientation)(size)) {
          return size;
        }

        return {
          width: size.height,
          height: size.width,
          rotation: (size.rotation + 90) % 360
        };
      });
    }
  }, {
    key: "_updateScrollMode",
    value: function _updateScrollMode() {
      var pageNumber = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
      var 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();
    }
  }, {
    key: "_updateSpreadMode",
    value: function _updateSpreadMode() {
      var pageNumber = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;

      if (!this.pdfDocument) {
        return;
      }

      var viewer = this.viewer,
          pages = this._pages;
      viewer.textContent = "";

      if (this._spreadMode === _ui_utils.SpreadMode.NONE) {
        for (var i = 0, iMax = pages.length; i < iMax; ++i) {
          viewer.appendChild(pages[i].div);
        }
      } else {
        var parity = this._spreadMode - 1;
        var spread = null;

        for (var _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();
    }
  }, {
    key: "pagesCount",
    get: function get() {
      return this._pages.length;
    }
  }, {
    key: "pageViewsReady",
    get: function get() {
      if (!this._pagesCapability.settled) {
        return false;
      }

      return this._pages.every(function (pageView) {
        return pageView && pageView.pdfPage;
      });
    }
  }, {
    key: "currentPageNumber",
    get: function get() {
      return this._currentPageNumber;
    },
    set: function set(val) {
      if (!Number.isInteger(val)) {
        throw new Error("Invalid page number.");
      }

      if (!this.pdfDocument) {
        return;
      }

      if (!this._setCurrentPageNumber(val, true)) {
        console.error("".concat(this._name, ".currentPageNumber: \"").concat(val, "\" is not a valid page."));
      }
    }
  }, {
    key: "currentPageLabel",
    get: function get() {
      return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
    },
    set: function set(val) {
      if (!this.pdfDocument) {
        return;
      }

      var page = val | 0;

      if (this._pageLabels) {
        var i = this._pageLabels.indexOf(val);

        if (i >= 0) {
          page = i + 1;
        }
      }

      if (!this._setCurrentPageNumber(page, true)) {
        console.error("".concat(this._name, ".currentPageLabel: \"").concat(val, "\" is not a valid page."));
      }
    }
  }, {
    key: "currentScale",
    get: function get() {
      return this._currentScale !== _ui_utils.UNKNOWN_SCALE ? this._currentScale : _ui_utils.DEFAULT_SCALE;
    },
    set: function set(val) {
      if (isNaN(val)) {
        throw new Error("Invalid numeric scale.");
      }

      if (!this.pdfDocument) {
        return;
      }

      this._setScale(val, false);
    }
  }, {
    key: "currentScaleValue",
    get: function get() {
      return this._currentScaleValue;
    },
    set: function set(val) {
      if (!this.pdfDocument) {
        return;
      }

      this._setScale(val, false);
    }
  }, {
    key: "pagesRotation",
    get: function get() {
      return this._pagesRotation;
    },
    set: function set(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;
      var pageNumber = this._currentPageNumber;

      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        var 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: pageNumber
      });

      if (this.defaultRenderingQueue) {
        this.update();
      }
    }
  }, {
    key: "firstPagePromise",
    get: function get() {
      return this.pdfDocument ? this._firstPageCapability.promise : null;
    }
  }, {
    key: "onePageRendered",
    get: function get() {
      return this.pdfDocument ? this._onePageRenderedCapability.promise : null;
    }
  }, {
    key: "pagesPromise",
    get: function get() {
      return this.pdfDocument ? this._pagesCapability.promise : null;
    }
  }, {
    key: "_viewerElement",
    get: function get() {
      throw new Error("Not implemented: _viewerElement");
    }
  }, {
    key: "_isScrollModeHorizontal",
    get: function get() {
      return this.isInPresentationMode ? false : this._scrollMode === _ui_utils.ScrollMode.HORIZONTAL;
    }
  }, {
    key: "isInPresentationMode",
    get: function get() {
      return this.presentationModeState === _ui_utils.PresentationModeState.FULLSCREEN;
    }
  }, {
    key: "isChangingPresentationMode",
    get: function get() {
      return this.presentationModeState === _ui_utils.PresentationModeState.CHANGING;
    }
  }, {
    key: "isHorizontalScrollbarEnabled",
    get: function get() {
      return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth;
    }
  }, {
    key: "isVerticalScrollbarEnabled",
    get: function get() {
      return this.isInPresentationMode ? false : this.container.scrollHeight > this.container.clientHeight;
    }
  }, {
    key: "hasEqualPageSizes",
    get: function get() {
      var firstPageView = this._pages[0];

      for (var i = 1, ii = this._pages.length; i < ii; ++i) {
        var pageView = this._pages[i];

        if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) {
          return false;
        }
      }

      return true;
    }
  }, {
    key: "optionalContentConfigPromise",
    get: function get() {
      if (!this.pdfDocument) {
        return Promise.resolve(null);
      }

      if (!this._optionalContentConfigPromise) {
        return this.pdfDocument.getOptionalContentConfig();
      }

      return this._optionalContentConfigPromise;
    },
    set: function set(promise) {
      if (!(promise instanceof Promise)) {
        throw new Error("Invalid optionalContentConfigPromise: ".concat(promise));
      }

      if (!this.pdfDocument) {
        return;
      }

      if (!this._optionalContentConfigPromise) {
        return;
      }

      this._optionalContentConfigPromise = promise;

      var _iterator = _createForOfIteratorHelper(this._pages),
          _step;

      try {
        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          var pageView = _step.value;
          pageView.update(pageView.scale, pageView.rotation, promise);
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      this.update();
      this.eventBus.dispatch("optionalcontentconfigchanged", {
        source: this,
        promise: promise
      });
    }
  }, {
    key: "scrollMode",
    get: function get() {
      return this._scrollMode;
    },
    set: function set(mode) {
      if (this._scrollMode === mode) {
        return;
      }

      if (!(0, _ui_utils.isValidScrollMode)(mode)) {
        throw new Error("Invalid scroll mode: ".concat(mode));
      }

      this._scrollMode = mode;
      this.eventBus.dispatch("scrollmodechanged", {
        source: this,
        mode: mode
      });

      this._updateScrollMode(this._currentPageNumber);
    }
  }, {
    key: "spreadMode",
    get: function get() {
      return this._spreadMode;
    },
    set: function set(mode) {
      if (this._spreadMode === mode) {
        return;
      }

      if (!(0, _ui_utils.isValidSpreadMode)(mode)) {
        throw new Error("Invalid spread mode: ".concat(mode));
      }

      this._spreadMode = mode;
      this.eventBus.dispatch("spreadmodechanged", {
        source: this,
        mode: mode
      });

      this._updateSpreadMode(this._currentPageNumber);
    }
  }]);

  return BaseViewer;
}();

exports.BaseViewer = BaseViewer;

/***/ }),
/* 31 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DefaultAnnotationLayerFactory = exports.AnnotationLayerBuilder = void 0;

var _pdfjsLib = __webpack_require__(8);

var _ui_utils = __webpack_require__(5);

var _pdf_link_service = __webpack_require__(23);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var AnnotationLayerBuilder = /*#__PURE__*/function () {
  function AnnotationLayerBuilder(_ref) {
    var pageDiv = _ref.pageDiv,
        pdfPage = _ref.pdfPage,
        linkService = _ref.linkService,
        downloadManager = _ref.downloadManager,
        _ref$annotationStorag = _ref.annotationStorage,
        annotationStorage = _ref$annotationStorag === void 0 ? null : _ref$annotationStorag,
        _ref$imageResourcesPa = _ref.imageResourcesPath,
        imageResourcesPath = _ref$imageResourcesPa === void 0 ? "" : _ref$imageResourcesPa,
        _ref$renderInteractiv = _ref.renderInteractiveForms,
        renderInteractiveForms = _ref$renderInteractiv === void 0 ? true : _ref$renderInteractiv,
        _ref$l10n = _ref.l10n,
        l10n = _ref$l10n === void 0 ? _ui_utils.NullL10n : _ref$l10n;

    _classCallCheck(this, AnnotationLayerBuilder);

    this.pageDiv = pageDiv;
    this.pdfPage = pdfPage;
    this.linkService = linkService;
    this.downloadManager = downloadManager;
    this.imageResourcesPath = imageResourcesPath;
    this.renderInteractiveForms = renderInteractiveForms;
    this.l10n = l10n;
    this.annotationStorage = annotationStorage;
    this.div = null;
    this._cancelled = false;
  }

  _createClass(AnnotationLayerBuilder, [{
    key: "render",
    value: function render(viewport) {
      var _this = this;

      var intent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : "display";
      return this.pdfPage.getAnnotations({
        intent: intent
      }).then(function (annotations) {
        if (_this._cancelled) {
          return;
        }

        if (annotations.length === 0) {
          return;
        }

        var parameters = {
          viewport: viewport.clone({
            dontFlip: true
          }),
          div: _this.div,
          annotations: annotations,
          page: _this.pdfPage,
          imageResourcesPath: _this.imageResourcesPath,
          renderInteractiveForms: _this.renderInteractiveForms,
          linkService: _this.linkService,
          downloadManager: _this.downloadManager,
          annotationStorage: _this.annotationStorage
        };

        if (_this.div) {
          _pdfjsLib.AnnotationLayer.update(parameters);
        } else {
          _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);
        }
      });
    }
  }, {
    key: "cancel",
    value: function cancel() {
      this._cancelled = true;
    }
  }, {
    key: "hide",
    value: function hide() {
      if (!this.div) {
        return;
      }

      this.div.setAttribute("hidden", "true");
    }
  }]);

  return AnnotationLayerBuilder;
}();

exports.AnnotationLayerBuilder = AnnotationLayerBuilder;

var DefaultAnnotationLayerFactory = /*#__PURE__*/function () {
  function DefaultAnnotationLayerFactory() {
    _classCallCheck(this, DefaultAnnotationLayerFactory);
  }

  _createClass(DefaultAnnotationLayerFactory, [{
    key: "createAnnotationLayerBuilder",
    value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
      var annotationStorage = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      var imageResourcesPath = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "";
      var renderInteractiveForms = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : true;
      var l10n = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : _ui_utils.NullL10n;
      return new AnnotationLayerBuilder({
        pageDiv: pageDiv,
        pdfPage: pdfPage,
        imageResourcesPath: imageResourcesPath,
        renderInteractiveForms: renderInteractiveForms,
        linkService: new _pdf_link_service.SimpleLinkService(),
        l10n: l10n,
        annotationStorage: annotationStorage
      });
    }
  }]);

  return DefaultAnnotationLayerFactory;
}();

exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;

/***/ }),
/* 32 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFPageView = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _ui_utils = __webpack_require__(5);

var _pdfjsLib = __webpack_require__(8);

var _pdf_rendering_queue = __webpack_require__(11);

var _viewer_compatibility = __webpack_require__(7);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var MAX_CANVAS_PIXELS = _viewer_compatibility.viewerCompatibilityParams.maxCanvasPixels || 16777216;

var PDFPageView = /*#__PURE__*/function () {
  function PDFPageView(options) {
    _classCallCheck(this, PDFPageView);

    var container = options.container;
    var 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._annotationStorage = options.annotationStorage || null;
    this._optionalContentConfigPromise = options.optionalContentConfigPromise || null;
    this.hasRestrictedScaling = false;
    this.textLayerMode = Number.isInteger(options.textLayerMode) ? options.textLayerMode : _ui_utils.TextLayerMode.ENABLE;
    this.imageResourcesPath = options.imageResourcesPath || "";
    this.renderInteractiveForms = typeof options.renderInteractiveForms === "boolean" ? options.renderInteractiveForms : true;
    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;
    var 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);
  }

  _createClass(PDFPageView, [{
    key: "setPdfPage",
    value: function setPdfPage(pdfPage) {
      this.pdfPage = pdfPage;
      this.pdfPageRotate = pdfPage.rotate;
      var 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();
    }
  }, {
    key: "destroy",
    value: function destroy() {
      this.reset();

      if (this.pdfPage) {
        this.pdfPage.cleanup();
      }
    }
  }, {
    key: "_renderAnnotationLayer",
    value: function () {
      var _renderAnnotationLayer2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
        var error;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                error = null;
                _context.prev = 1;
                _context.next = 4;
                return this.annotationLayer.render(this.viewport, "display");

              case 4:
                _context.next = 9;
                break;

              case 6:
                _context.prev = 6;
                _context.t0 = _context["catch"](1);
                error = _context.t0;

              case 9:
                _context.prev = 9;
                this.eventBus.dispatch("annotationlayerrendered", {
                  source: this,
                  pageNumber: this.id,
                  error: error
                });
                return _context.finish(9);

              case 12:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this, [[1, 6, 9, 12]]);
      }));

      function _renderAnnotationLayer() {
        return _renderAnnotationLayer2.apply(this, arguments);
      }

      return _renderAnnotationLayer;
    }()
  }, {
    key: "_resetZoomLayer",
    value: function _resetZoomLayer() {
      var removeFromDOM = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (!this.zoomLayer) {
        return;
      }

      var zoomLayerCanvas = this.zoomLayer.firstChild;
      this.paintedViewportMap["delete"](zoomLayerCanvas);
      zoomLayerCanvas.width = 0;
      zoomLayerCanvas.height = 0;

      if (removeFromDOM) {
        this.zoomLayer.remove();
      }

      this.zoomLayer = null;
    }
  }, {
    key: "reset",
    value: function reset() {
      var keepZoomLayer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var keepAnnotations = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      this.cancelRendering(keepAnnotations);
      this.renderingState = _pdf_rendering_queue.RenderingStates.INITIAL;
      var div = this.div;
      div.style.width = Math.floor(this.viewport.width) + "px";
      div.style.height = Math.floor(this.viewport.height) + "px";
      var childNodes = div.childNodes;
      var currentZoomLayerNode = keepZoomLayer && this.zoomLayer || null;
      var currentAnnotationNode = keepAnnotations && this.annotationLayer && this.annotationLayer.div || null;

      for (var i = childNodes.length - 1; i >= 0; i--) {
        var 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);
    }
  }, {
    key: "update",
    value: function update(scale, rotation) {
      var optionalContentConfigPromise = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
      this.scale = scale || this.scale;

      if (typeof rotation !== "undefined") {
        this.rotation = rotation;
      }

      if (optionalContentConfigPromise instanceof Promise) {
        this._optionalContentConfigPromise = optionalContentConfigPromise;
      }

      var 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;
      }

      var isScalingRestricted = false;

      if (this.canvas && this.maxCanvasPixels > 0) {
        var 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);
    }
  }, {
    key: "cancelRendering",
    value: function cancelRendering() {
      var keepAnnotations = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 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;
      }
    }
  }, {
    key: "cssTransform",
    value: function cssTransform(target) {
      var redrawAnnotations = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
      var width = this.viewport.width;
      var height = this.viewport.height;
      var 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";
      var relativeRotation = this.viewport.rotation - this.paintedViewportMap.get(target).rotation;
      var absRotation = Math.abs(relativeRotation);
      var scaleX = 1,
          scaleY = 1;

      if (absRotation === 90 || absRotation === 270) {
        scaleX = height / width;
        scaleY = width / height;
      }

      var cssTransform = "rotate(" + relativeRotation + "deg) " + "scale(" + scaleX + "," + scaleY + ")";
      target.style.transform = cssTransform;

      if (this.textLayer) {
        var textLayerViewport = this.textLayer.viewport;
        var textRelativeRotation = this.viewport.rotation - textLayerViewport.rotation;
        var textAbsRotation = Math.abs(textRelativeRotation);
        var scale = width / textLayerViewport.width;

        if (textAbsRotation === 90 || textAbsRotation === 270) {
          scale = width / textLayerViewport.height;
        }

        var textLayerDiv = this.textLayer.textLayerDiv;
        var 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._renderAnnotationLayer();
      }
    }
  }, {
    key: "getPagePoint",
    value: function getPagePoint(x, y) {
      return this.viewport.convertToPdfPoint(x, y);
    }
  }, {
    key: "draw",
    value: function draw() {
      var _this = this;

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        console.error("Must be in new state before drawing");
        this.reset();
      }

      var div = this.div,
          pdfPage = this.pdfPage;

      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;
      var 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);
      }

      var textLayer = null;

      if (this.textLayerMode !== _ui_utils.TextLayerMode.DISABLE && this.textLayerFactory) {
        var 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;
      var renderContinueCallback = null;

      if (this.renderingQueue) {
        renderContinueCallback = function renderContinueCallback(cont) {
          if (!_this.renderingQueue.isHighestPriority(_this)) {
            _this.renderingState = _pdf_rendering_queue.RenderingStates.PAUSED;

            _this.resume = function () {
              _this.renderingState = _pdf_rendering_queue.RenderingStates.RUNNING;
              cont();
            };

            return;
          }

          cont();
        };
      }

      var finishPaintTask = /*#__PURE__*/function () {
        var _ref = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2(error) {
          return _regenerator["default"].wrap(function _callee2$(_context2) {
            while (1) {
              switch (_context2.prev = _context2.next) {
                case 0:
                  if (paintTask === _this.paintTask) {
                    _this.paintTask = null;
                  }

                  if (!(error instanceof _pdfjsLib.RenderingCancelledException)) {
                    _context2.next = 4;
                    break;
                  }

                  _this.error = null;
                  return _context2.abrupt("return");

                case 4:
                  _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) {
                    _context2.next = 12;
                    break;
                  }

                  throw error;

                case 12:
                case "end":
                  return _context2.stop();
              }
            }
          }, _callee2);
        }));

        return function finishPaintTask(_x) {
          return _ref.apply(this, arguments);
        };
      }();

      var paintTask = this.renderer === _ui_utils.RendererType.SVG ? this.paintOnSvg(canvasWrapper) : this.paintOnCanvas(canvasWrapper);
      paintTask.onRenderContinue = renderContinueCallback;
      this.paintTask = paintTask;
      var resultPromise = paintTask.promise.then(function () {
        return finishPaintTask(null).then(function () {
          if (textLayer) {
            var 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._annotationStorage, this.imageResourcesPath, this.renderInteractiveForms, this.l10n);
        }

        this._renderAnnotationLayer();
      }

      div.setAttribute("data-loaded", true);
      this.eventBus.dispatch("pagerender", {
        source: this,
        pageNumber: this.id
      });
      return resultPromise;
    }
  }, {
    key: "paintOnCanvas",
    value: function paintOnCanvas(canvasWrapper) {
      var renderCapability = (0, _pdfjsLib.createPromiseCapability)();
      var result = {
        promise: renderCapability.promise,
        onRenderContinue: function onRenderContinue(cont) {
          cont();
        },
        cancel: function cancel() {
          renderTask.cancel();
        }
      };
      var viewport = this.viewport;
      var canvas = document.createElement("canvas");
      this.l10n.get("page_canvas", {
        page: this.id
      }, "Page {{page}}").then(function (msg) {
        canvas.setAttribute("aria-label", msg);
      });
      canvas.setAttribute("hidden", "hidden");
      var isCanvasHidden = true;

      var showCanvas = function showCanvas() {
        if (isCanvasHidden) {
          canvas.removeAttribute("hidden");
          isCanvasHidden = false;
        }
      };

      canvasWrapper.appendChild(canvas);
      this.canvas = canvas;
      canvas.mozOpaque = true;
      var ctx = canvas.getContext("2d", {
        alpha: false
      });
      var outputScale = (0, _ui_utils.getOutputScale)(ctx);
      this.outputScale = outputScale;

      if (this.useOnlyCssZoom) {
        var 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) {
        var pixelsInViewport = viewport.width * viewport.height;
        var 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;
        }
      }

      var sfx = (0, _ui_utils.approximateFraction)(outputScale.sx);
      var 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);
      var transform = !outputScale.scaled ? null : [outputScale.sx, 0, 0, outputScale.sy, 0, 0];
      var renderContext = {
        canvasContext: ctx,
        transform: transform,
        viewport: this.viewport,
        enableWebGL: this.enableWebGL,
        renderInteractiveForms: this.renderInteractiveForms,
        optionalContentConfigPromise: this._optionalContentConfigPromise
      };
      var 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;
    }
  }, {
    key: "paintOnSvg",
    value: function paintOnSvg(wrapper) {
      var _this2 = this;

      var cancelled = false;

      var ensureNotCancelled = function ensureNotCancelled() {
        if (cancelled) {
          throw new _pdfjsLib.RenderingCancelledException("Rendering cancelled, page ".concat(_this2.id), "svg");
        }
      };

      var pdfPage = this.pdfPage;
      var actualSizeViewport = this.viewport.clone({
        scale: _ui_utils.CSS_UNITS
      });
      var promise = pdfPage.getOperatorList().then(function (opList) {
        ensureNotCancelled();
        var svgGfx = new _pdfjsLib.SVGGraphics(pdfPage.commonObjs, pdfPage.objs);
        return svgGfx.getSVG(opList, actualSizeViewport).then(function (svg) {
          ensureNotCancelled();
          _this2.svg = svg;

          _this2.paintedViewportMap.set(svg, actualSizeViewport);

          svg.style.width = wrapper.style.width;
          svg.style.height = wrapper.style.height;
          _this2.renderingState = _pdf_rendering_queue.RenderingStates.FINISHED;
          wrapper.appendChild(svg);
        });
      });
      return {
        promise: promise,
        onRenderContinue: function onRenderContinue(cont) {
          cont();
        },
        cancel: function cancel() {
          cancelled = true;
        }
      };
    }
  }, {
    key: "setPageLabel",
    value: function 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");
      }
    }
  }, {
    key: "width",
    get: function get() {
      return this.viewport.width;
    }
  }, {
    key: "height",
    get: function get() {
      return this.viewport.height;
    }
  }]);

  return PDFPageView;
}();

exports.PDFPageView = PDFPageView;

/***/ }),
/* 33 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DefaultTextLayerFactory = exports.TextLayerBuilder = void 0;

var _pdfjsLib = __webpack_require__(8);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var EXPAND_DIVS_TIMEOUT = 300;

var TextLayerBuilder = /*#__PURE__*/function () {
  function TextLayerBuilder(_ref) {
    var textLayerDiv = _ref.textLayerDiv,
        eventBus = _ref.eventBus,
        pageIndex = _ref.pageIndex,
        viewport = _ref.viewport,
        _ref$findController = _ref.findController,
        findController = _ref$findController === void 0 ? null : _ref$findController,
        _ref$enhanceTextSelec = _ref.enhanceTextSelection,
        enhanceTextSelection = _ref$enhanceTextSelec === void 0 ? false : _ref$enhanceTextSelec;

    _classCallCheck(this, TextLayerBuilder);

    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();
  }

  _createClass(TextLayerBuilder, [{
    key: "_finishRendering",
    value: function _finishRendering() {
      this.renderingDone = true;

      if (!this.enhanceTextSelection) {
        var endOfContent = document.createElement("div");
        endOfContent.className = "endOfContent";
        this.textLayerDiv.appendChild(endOfContent);
      }

      this.eventBus.dispatch("textlayerrendered", {
        source: this,
        pageNumber: this.pageNumber,
        numTextDivs: this.textDivs.length
      });
    }
  }, {
    key: "render",
    value: function render() {
      var _this = this;

      var timeout = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

      if (!(this.textContent || this.textContentStream) || this.renderingDone) {
        return;
      }

      this.cancel();
      this.textDivs = [];
      var 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: timeout,
        enhanceTextSelection: this.enhanceTextSelection
      });
      this.textLayerRenderTask.promise.then(function () {
        _this.textLayerDiv.appendChild(textLayerFrag);

        _this._finishRendering();

        _this._updateMatches();
      }, function (reason) {});

      if (!this._onUpdateTextLayerMatches) {
        this._onUpdateTextLayerMatches = function (evt) {
          if (evt.pageIndex === _this.pageIdx || evt.pageIndex === -1) {
            _this._updateMatches();
          }
        };

        this.eventBus._on("updatetextlayermatches", this._onUpdateTextLayerMatches);
      }
    }
  }, {
    key: "cancel",
    value: function cancel() {
      if (this.textLayerRenderTask) {
        this.textLayerRenderTask.cancel();
        this.textLayerRenderTask = null;
      }

      if (this._onUpdateTextLayerMatches) {
        this.eventBus._off("updatetextlayermatches", this._onUpdateTextLayerMatches);

        this._onUpdateTextLayerMatches = null;
      }
    }
  }, {
    key: "setTextContentStream",
    value: function setTextContentStream(readableStream) {
      this.cancel();
      this.textContentStream = readableStream;
    }
  }, {
    key: "setTextContent",
    value: function setTextContent(textContent) {
      this.cancel();
      this.textContent = textContent;
    }
  }, {
    key: "_convertMatches",
    value: function _convertMatches(matches, matchesLength) {
      if (!matches) {
        return [];
      }

      var findController = this.findController,
          textContentItemsStr = this.textContentItemsStr;
      var i = 0,
          iIndex = 0;
      var end = textContentItemsStr.length - 1;
      var queryLen = findController.state.query.length;
      var result = [];

      for (var m = 0, mm = matches.length; m < mm; m++) {
        var 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");
        }

        var 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;
    }
  }, {
    key: "_renderMatches",
    value: function _renderMatches(matches) {
      if (matches.length === 0) {
        return;
      }

      var findController = this.findController,
          pageIdx = this.pageIdx,
          textContentItemsStr = this.textContentItemsStr,
          textDivs = this.textDivs;
      var isSelectedPage = pageIdx === findController.selected.pageIdx;
      var selectedMatchIdx = findController.selected.matchIdx;
      var highlightAll = findController.state.highlightAll;
      var prevEnd = null;
      var infinity = {
        divIdx: -1,
        offset: undefined
      };

      function beginText(begin, className) {
        var divIdx = begin.divIdx;
        textDivs[divIdx].textContent = "";
        appendTextToDiv(divIdx, 0, begin.offset, className);
      }

      function appendTextToDiv(divIdx, fromOffset, toOffset, className) {
        var div = textDivs[divIdx];
        var content = textContentItemsStr[divIdx].substring(fromOffset, toOffset);
        var node = document.createTextNode(content);

        if (className) {
          var span = document.createElement("span");
          span.className = className;
          span.appendChild(node);
          div.appendChild(span);
          return;
        }

        div.appendChild(node);
      }

      var i0 = selectedMatchIdx,
          i1 = i0 + 1;

      if (highlightAll) {
        i0 = 0;
        i1 = matches.length;
      } else if (!isSelectedPage) {
        return;
      }

      for (var i = i0; i < i1; i++) {
        var match = matches[i];
        var begin = match.begin;
        var end = match.end;
        var isSelected = isSelectedPage && i === selectedMatchIdx;
        var 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 (var 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);
      }
    }
  }, {
    key: "_updateMatches",
    value: function _updateMatches() {
      if (!this.renderingDone) {
        return;
      }

      var findController = this.findController,
          matches = this.matches,
          pageIdx = this.pageIdx,
          textContentItemsStr = this.textContentItemsStr,
          textDivs = this.textDivs;
      var clearedUntilDivIdx = -1;

      for (var i = 0, ii = matches.length; i < ii; i++) {
        var match = matches[i];
        var begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);

        for (var n = begin, end = match.end.divIdx; n <= end; n++) {
          var div = textDivs[n];
          div.textContent = textContentItemsStr[n];
          div.className = "";
        }

        clearedUntilDivIdx = match.end.divIdx + 1;
      }

      if (!findController || !findController.highlightMatches) {
        return;
      }

      var pageMatches = findController.pageMatches[pageIdx] || null;
      var pageMatchesLength = findController.pageMatchesLength[pageIdx] || null;
      this.matches = this._convertMatches(pageMatches, pageMatchesLength);

      this._renderMatches(this.matches);
    }
  }, {
    key: "_bindMouse",
    value: function _bindMouse() {
      var _this2 = this;

      var div = this.textLayerDiv;
      var expandDivsTimer = null;
      div.addEventListener("mousedown", function (evt) {
        if (_this2.enhanceTextSelection && _this2.textLayerRenderTask) {
          _this2.textLayerRenderTask.expandTextDivs(true);

          if (expandDivsTimer) {
            clearTimeout(expandDivsTimer);
            expandDivsTimer = null;
          }

          return;
        }

        var end = div.querySelector(".endOfContent");

        if (!end) {
          return;
        }

        var adjustTop = evt.target !== div;
        adjustTop = adjustTop && window.getComputedStyle(end).getPropertyValue("-moz-user-select") !== "none";

        if (adjustTop) {
          var divBounds = div.getBoundingClientRect();
          var r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
          end.style.top = (r * 100).toFixed(2) + "%";
        }

        end.classList.add("active");
      });
      div.addEventListener("mouseup", function () {
        if (_this2.enhanceTextSelection && _this2.textLayerRenderTask) {
          expandDivsTimer = setTimeout(function () {
            if (_this2.textLayerRenderTask) {
              _this2.textLayerRenderTask.expandTextDivs(false);
            }

            expandDivsTimer = null;
          }, EXPAND_DIVS_TIMEOUT);
          return;
        }

        var end = div.querySelector(".endOfContent");

        if (!end) {
          return;
        }

        end.style.top = "";
        end.classList.remove("active");
      });
    }
  }]);

  return TextLayerBuilder;
}();

exports.TextLayerBuilder = TextLayerBuilder;

var DefaultTextLayerFactory = /*#__PURE__*/function () {
  function DefaultTextLayerFactory() {
    _classCallCheck(this, DefaultTextLayerFactory);
  }

  _createClass(DefaultTextLayerFactory, [{
    key: "createTextLayerBuilder",
    value: function createTextLayerBuilder(textLayerDiv, pageIndex, viewport) {
      var enhanceTextSelection = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
      var eventBus = arguments.length > 4 ? arguments[4] : undefined;
      return new TextLayerBuilder({
        textLayerDiv: textLayerDiv,
        pageIndex: pageIndex,
        viewport: viewport,
        enhanceTextSelection: enhanceTextSelection,
        eventBus: eventBus
      });
    }
  }]);

  return DefaultTextLayerFactory;
}();

exports.DefaultTextLayerFactory = DefaultTextLayerFactory;

/***/ }),
/* 34 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SecondaryToolbar = void 0;

var _ui_utils = __webpack_require__(5);

var _pdf_cursor_tools = __webpack_require__(9);

var _pdf_single_page_viewer = __webpack_require__(35);

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var SecondaryToolbar = /*#__PURE__*/function () {
  function SecondaryToolbar(options, mainContainer, eventBus) {
    var _this = this;

    _classCallCheck(this, SecondaryToolbar);

    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", function (evt) {
      if (evt.source instanceof _pdf_single_page_viewer.PDFSinglePageViewer) {
        _this.toolbarButtonContainer.classList.add("hiddenScrollModeButtons", "hiddenSpreadModeButtons");
      } else {
        _this.toolbarButtonContainer.classList.remove("hiddenScrollModeButtons", "hiddenSpreadModeButtons");
      }
    });
  }

  _createClass(SecondaryToolbar, [{
    key: "setPageNumber",
    value: function setPageNumber(pageNumber) {
      this.pageNumber = pageNumber;

      this._updateUIState();
    }
  }, {
    key: "setPagesCount",
    value: function setPagesCount(pagesCount) {
      this.pagesCount = pagesCount;

      this._updateUIState();
    }
  }, {
    key: "reset",
    value: function reset() {
      this.pageNumber = 0;
      this.pagesCount = 0;

      this._updateUIState();

      this.eventBus.dispatch("secondarytoolbarreset", {
        source: this
      });
    }
  }, {
    key: "_updateUIState",
    value: function _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;
    }
  }, {
    key: "_bindClickListeners",
    value: function _bindClickListeners() {
      var _this2 = this;

      this.toggleButton.addEventListener("click", this.toggle.bind(this));

      var _iterator = _createForOfIteratorHelper(this.buttons),
          _step;

      try {
        var _loop = function _loop() {
          var _step$value = _step.value,
              element = _step$value.element,
              eventName = _step$value.eventName,
              close = _step$value.close,
              eventDetails = _step$value.eventDetails;
          element.addEventListener("click", function (evt) {
            if (eventName !== null) {
              var details = {
                source: _this2
              };

              for (var property in eventDetails) {
                details[property] = eventDetails[property];
              }

              _this2.eventBus.dispatch(eventName, details);
            }

            if (close) {
              _this2.close();
            }
          });
        };

        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          _loop();
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }
    }
  }, {
    key: "_bindCursorToolsListener",
    value: function _bindCursorToolsListener(buttons) {
      this.eventBus._on("cursortoolchanged", function (_ref) {
        var tool = _ref.tool;
        buttons.cursorSelectToolButton.classList.toggle("toggled", tool === _pdf_cursor_tools.CursorTool.SELECT);
        buttons.cursorHandToolButton.classList.toggle("toggled", tool === _pdf_cursor_tools.CursorTool.HAND);
      });
    }
  }, {
    key: "_bindScrollModeListener",
    value: function _bindScrollModeListener(buttons) {
      var _this3 = this;

      function scrollModeChanged(_ref2) {
        var mode = _ref2.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);
        var 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", function (evt) {
        if (evt.source === _this3) {
          scrollModeChanged({
            mode: _ui_utils.ScrollMode.VERTICAL
          });
        }
      });
    }
  }, {
    key: "_bindSpreadModeListener",
    value: function _bindSpreadModeListener(buttons) {
      var _this4 = this;

      function spreadModeChanged(_ref3) {
        var mode = _ref3.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", function (evt) {
        if (evt.source === _this4) {
          spreadModeChanged({
            mode: _ui_utils.SpreadMode.NONE
          });
        }
      });
    }
  }, {
    key: "open",
    value: function open() {
      if (this.opened) {
        return;
      }

      this.opened = true;

      this._setMaxHeight();

      this.toggleButton.classList.add("toggled");
      this.toolbar.classList.remove("hidden");
    }
  }, {
    key: "close",
    value: function close() {
      if (!this.opened) {
        return;
      }

      this.opened = false;
      this.toolbar.classList.add("hidden");
      this.toggleButton.classList.remove("toggled");
    }
  }, {
    key: "toggle",
    value: function toggle() {
      if (this.opened) {
        this.close();
      } else {
        this.open();
      }
    }
  }, {
    key: "_setMaxHeight",
    value: function _setMaxHeight() {
      if (!this.opened) {
        return;
      }

      this.containerHeight = this.mainContainer.clientHeight;

      if (this.containerHeight === this.previousContainerHeight) {
        return;
      }

      this.toolbarButtonContainer.style.maxHeight = "".concat(this.containerHeight - _ui_utils.SCROLLBAR_PADDING, "px");
      this.previousContainerHeight = this.containerHeight;
    }
  }, {
    key: "isOpen",
    get: function get() {
      return this.opened;
    }
  }]);

  return SecondaryToolbar;
}();

exports.SecondaryToolbar = SecondaryToolbar;

/***/ }),
/* 35 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFSinglePageViewer = void 0;

var _base_viewer = __webpack_require__(30);

var _pdfjsLib = __webpack_require__(8);

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

var PDFSinglePageViewer = /*#__PURE__*/function (_BaseViewer) {
  _inherits(PDFSinglePageViewer, _BaseViewer);

  var _super = _createSuper(PDFSinglePageViewer);

  function PDFSinglePageViewer(options) {
    var _this;

    _classCallCheck(this, PDFSinglePageViewer);

    _this = _super.call(this, options);

    _this.eventBus._on("pagesinit", function (evt) {
      _this._ensurePageViewVisible();
    });

    return _this;
  }

  _createClass(PDFSinglePageViewer, [{
    key: "_resetView",
    value: function _resetView() {
      _get(_getPrototypeOf(PDFSinglePageViewer.prototype), "_resetView", this).call(this);

      this._previousPageNumber = 1;
      this._shadowViewer = document.createDocumentFragment();
      this._updateScrollDown = null;
    }
  }, {
    key: "_ensurePageViewVisible",
    value: function _ensurePageViewVisible() {
      var pageView = this._pages[this._currentPageNumber - 1];
      var previousPageView = this._pages[this._previousPageNumber - 1];
      var 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;
    }
  }, {
    key: "_scrollUpdate",
    value: function _scrollUpdate() {
      if (this._updateScrollDown) {
        this._updateScrollDown();
      }

      _get(_getPrototypeOf(PDFSinglePageViewer.prototype), "_scrollUpdate", this).call(this);
    }
  }, {
    key: "_scrollIntoView",
    value: function _scrollIntoView(_ref) {
      var _this2 = this;

      var pageDiv = _ref.pageDiv,
          _ref$pageSpot = _ref.pageSpot,
          pageSpot = _ref$pageSpot === void 0 ? null : _ref$pageSpot,
          _ref$pageNumber = _ref.pageNumber,
          pageNumber = _ref$pageNumber === void 0 ? null : _ref$pageNumber;

      if (pageNumber) {
        this._setCurrentPageNumber(pageNumber);
      }

      var scrolledDown = this._currentPageNumber >= this._previousPageNumber;

      this._ensurePageViewVisible();

      this.update();

      _get(_getPrototypeOf(PDFSinglePageViewer.prototype), "_scrollIntoView", this).call(this, {
        pageDiv: pageDiv,
        pageSpot: pageSpot,
        pageNumber: pageNumber
      });

      this._updateScrollDown = function () {
        _this2.scroll.down = scrolledDown;
        _this2._updateScrollDown = null;
      };
    }
  }, {
    key: "_getVisiblePages",
    value: function _getVisiblePages() {
      return this._getCurrentVisiblePage();
    }
  }, {
    key: "_updateHelper",
    value: function _updateHelper(visiblePages) {}
  }, {
    key: "_updateScrollMode",
    value: function _updateScrollMode() {}
  }, {
    key: "_updateSpreadMode",
    value: function _updateSpreadMode() {}
  }, {
    key: "_viewerElement",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "_viewerElement", this._shadowViewer);
    }
  }, {
    key: "_isScrollModeHorizontal",
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, "_isScrollModeHorizontal", false);
    }
  }]);

  return PDFSinglePageViewer;
}(_base_viewer.BaseViewer);

exports.PDFSinglePageViewer = PDFSinglePageViewer;

/***/ }),
/* 36 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Toolbar = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _ui_utils = __webpack_require__(5);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _createForOfIteratorHelper(o, allowArrayLike) { var it; if (typeof Symbol === "undefined" || o[Symbol.iterator] == null) { if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") { if (it) o = it; var i = 0; var F = function F() {}; return { s: F, n: function n() { if (i >= o.length) return { done: true }; return { done: false, value: o[i++] }; }, e: function e(_e) { throw _e; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var normalCompletion = true, didErr = false, err; return { s: function s() { it = o[Symbol.iterator](); }, n: function n() { var step = it.next(); normalCompletion = step.done; return step; }, e: function e(_e2) { didErr = true; err = _e2; }, f: function f() { try { if (!normalCompletion && it["return"] != null) it["return"](); } finally { if (didErr) throw err; } } }; }

function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); }

function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var PAGE_NUMBER_LOADING_INDICATOR = "visiblePageIsLoading";
var SCALE_SELECT_CONTAINER_WIDTH = 140;
var SCALE_SELECT_WIDTH = 162;

var Toolbar = /*#__PURE__*/function () {
  function Toolbar(options, eventBus) {
    var l10n = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : _ui_utils.NullL10n;

    _classCallCheck(this, Toolbar);

    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();
  }

  _createClass(Toolbar, [{
    key: "setPageNumber",
    value: function setPageNumber(pageNumber, pageLabel) {
      this.pageNumber = pageNumber;
      this.pageLabel = pageLabel;

      this._updateUIState(false);
    }
  }, {
    key: "setPagesCount",
    value: function setPagesCount(pagesCount, hasPageLabels) {
      this.pagesCount = pagesCount;
      this.hasPageLabels = hasPageLabels;

      this._updateUIState(true);
    }
  }, {
    key: "setPageScale",
    value: function setPageScale(pageScaleValue, pageScale) {
      this.pageScaleValue = (pageScaleValue || pageScale).toString();
      this.pageScale = pageScale;

      this._updateUIState(false);
    }
  }, {
    key: "reset",
    value: function 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();
    }
  }, {
    key: "_bindListeners",
    value: function _bindListeners() {
      var _this = this;

      var _this$items = this.items,
          pageNumber = _this$items.pageNumber,
          scaleSelect = _this$items.scaleSelect;
      var self = this;

      var _iterator = _createForOfIteratorHelper(this.buttons),
          _step;

      try {
        var _loop = function _loop() {
          var _step$value = _step.value,
              element = _step$value.element,
              eventName = _step$value.eventName;
          element.addEventListener("click", function (evt) {
            if (eventName !== null) {
              _this.eventBus.dispatch(eventName, {
                source: _this
              });
            }
          });
        };

        for (_iterator.s(); !(_step = _iterator.n()).done;) {
          _loop();
        }
      } catch (err) {
        _iterator.e(err);
      } finally {
        _iterator.f();
      }

      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", function () {
        _this._wasLocalized = true;

        _this._adjustScaleWidth();

        _this._updateUIState(true);
      });
    }
  }, {
    key: "_updateUIState",
    value: function _updateUIState() {
      var resetNumPages = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (!this._wasLocalized) {
        return;
      }

      var pageNumber = this.pageNumber,
          pagesCount = this.pagesCount,
          pageScaleValue = this.pageScaleValue,
          pageScale = this.pageScale,
          items = this.items;

      if (resetNumPages) {
        if (this.hasPageLabels) {
          items.pageNumber.type = "text";
        } else {
          items.pageNumber.type = "number";
          this.l10n.get("of_pages", {
            pagesCount: pagesCount
          }, "of {{pagesCount}}").then(function (msg) {
            items.numPages.textContent = msg;
          });
        }

        items.pageNumber.max = pagesCount;
      }

      if (this.hasPageLabels) {
        items.pageNumber.value = this.pageLabel;
        this.l10n.get("page_of_pages", {
          pageNumber: pageNumber,
          pagesCount: pagesCount
        }, "({{pageNumber}} of {{pagesCount}})").then(function (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;
      var customScale = Math.round(pageScale * 10000) / 100;
      this.l10n.get("page_scale_percent", {
        scale: customScale
      }, "{{scale}}%").then(function (msg) {
        var predefinedValueFound = false;

        var _iterator2 = _createForOfIteratorHelper(items.scaleSelect.options),
            _step2;

        try {
          for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
            var option = _step2.value;

            if (option.value !== pageScaleValue) {
              option.selected = false;
              continue;
            }

            option.selected = true;
            predefinedValueFound = true;
          }
        } catch (err) {
          _iterator2.e(err);
        } finally {
          _iterator2.f();
        }

        if (!predefinedValueFound) {
          items.customScaleOption.textContent = msg;
          items.customScaleOption.selected = true;
        }
      });
    }
  }, {
    key: "updateLoadingIndicatorState",
    value: function updateLoadingIndicatorState() {
      var loading = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var pageNumberInput = this.items.pageNumber;
      pageNumberInput.classList.toggle(PAGE_NUMBER_LOADING_INDICATOR, loading);
    }
  }, {
    key: "_adjustScaleWidth",
    value: function () {
      var _adjustScaleWidth2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
        var items, l10n, predefinedValuesPromise, canvas, ctx, _getComputedStyle, fontSize, fontFamily, maxWidth, _iterator3, _step3, predefinedValue, _ctx$measureText, width, overflow;

        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                items = this.items, l10n = this.l10n;
                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")]);
                canvas = document.createElement("canvas");
                canvas.mozOpaque = true;
                ctx = canvas.getContext("2d", {
                  alpha: false
                });
                _context.next = 7;
                return _ui_utils.animationStarted;

              case 7:
                _getComputedStyle = getComputedStyle(items.scaleSelect), fontSize = _getComputedStyle.fontSize, fontFamily = _getComputedStyle.fontFamily;
                ctx.font = "".concat(fontSize, " ").concat(fontFamily);
                maxWidth = 0;
                _context.t0 = _createForOfIteratorHelper;
                _context.next = 13;
                return predefinedValuesPromise;

              case 13:
                _context.t1 = _context.sent;
                _iterator3 = (0, _context.t0)(_context.t1);

                try {
                  for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
                    predefinedValue = _step3.value;
                    _ctx$measureText = ctx.measureText(predefinedValue), width = _ctx$measureText.width;

                    if (width > maxWidth) {
                      maxWidth = width;
                    }
                  }
                } catch (err) {
                  _iterator3.e(err);
                } finally {
                  _iterator3.f();
                }

                overflow = SCALE_SELECT_WIDTH - SCALE_SELECT_CONTAINER_WIDTH;
                maxWidth += 2 * overflow;

                if (maxWidth > SCALE_SELECT_CONTAINER_WIDTH) {
                  items.scaleSelect.style.width = "".concat(maxWidth + overflow, "px");
                  items.scaleSelectContainer.style.width = "".concat(maxWidth, "px");
                }

                canvas.width = 0;
                canvas.height = 0;
                canvas = ctx = null;

              case 22:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function _adjustScaleWidth() {
        return _adjustScaleWidth2.apply(this, arguments);
      }

      return _adjustScaleWidth;
    }()
  }]);

  return Toolbar;
}();

exports.Toolbar = Toolbar;

/***/ }),
/* 37 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.ViewHistory = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;

var ViewHistory = /*#__PURE__*/function () {
  function ViewHistory(fingerprint) {
    var _this = this;

    var cacheSize = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : DEFAULT_VIEW_HISTORY_CACHE_SIZE;

    _classCallCheck(this, ViewHistory);

    this.fingerprint = fingerprint;
    this.cacheSize = cacheSize;
    this._initializedPromise = this._readFromStorage().then(function (databaseStr) {
      var database = JSON.parse(databaseStr || "{}");
      var index = -1;

      if (!Array.isArray(database.files)) {
        database.files = [];
      } else {
        while (database.files.length >= _this.cacheSize) {
          database.files.shift();
        }

        for (var i = 0, ii = database.files.length; i < ii; i++) {
          var 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;
    });
  }

  _createClass(ViewHistory, [{
    key: "_writeToStorage",
    value: function () {
      var _writeToStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
        var databaseStr;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                databaseStr = JSON.stringify(this.database);
                localStorage.setItem("pdfjs.history", databaseStr);

              case 2:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function _writeToStorage() {
        return _writeToStorage2.apply(this, arguments);
      }

      return _writeToStorage;
    }()
  }, {
    key: "_readFromStorage",
    value: function () {
      var _readFromStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                return _context2.abrupt("return", localStorage.getItem("pdfjs.history"));

              case 1:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2);
      }));

      function _readFromStorage() {
        return _readFromStorage2.apply(this, arguments);
      }

      return _readFromStorage;
    }()
  }, {
    key: "set",
    value: function () {
      var _set = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3(name, val) {
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                _context3.next = 2;
                return this._initializedPromise;

              case 2:
                this.file[name] = val;
                return _context3.abrupt("return", this._writeToStorage());

              case 4:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function set(_x, _x2) {
        return _set.apply(this, arguments);
      }

      return set;
    }()
  }, {
    key: "setMultiple",
    value: function () {
      var _setMultiple = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4(properties) {
        var name;
        return _regenerator["default"].wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                _context4.next = 2;
                return this._initializedPromise;

              case 2:
                for (name in properties) {
                  this.file[name] = properties[name];
                }

                return _context4.abrupt("return", this._writeToStorage());

              case 4:
              case "end":
                return _context4.stop();
            }
          }
        }, _callee4, this);
      }));

      function setMultiple(_x3) {
        return _setMultiple.apply(this, arguments);
      }

      return setMultiple;
    }()
  }, {
    key: "get",
    value: function () {
      var _get = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee5(name, defaultValue) {
        var val;
        return _regenerator["default"].wrap(function _callee5$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                _context5.next = 2;
                return this._initializedPromise;

              case 2:
                val = this.file[name];
                return _context5.abrupt("return", val !== undefined ? val : defaultValue);

              case 4:
              case "end":
                return _context5.stop();
            }
          }
        }, _callee5, this);
      }));

      function get(_x4, _x5) {
        return _get.apply(this, arguments);
      }

      return get;
    }()
  }, {
    key: "getMultiple",
    value: function () {
      var _getMultiple = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee6(properties) {
        var values, name, val;
        return _regenerator["default"].wrap(function _callee6$(_context6) {
          while (1) {
            switch (_context6.prev = _context6.next) {
              case 0:
                _context6.next = 2;
                return this._initializedPromise;

              case 2:
                values = Object.create(null);

                for (name in properties) {
                  val = this.file[name];
                  values[name] = val !== undefined ? val : properties[name];
                }

                return _context6.abrupt("return", values);

              case 5:
              case "end":
                return _context6.stop();
            }
          }
        }, _callee6, this);
      }));

      function getMultiple(_x6) {
        return _getMultiple.apply(this, arguments);
      }

      return getMultiple;
    }()
  }]);

  return ViewHistory;
}();

exports.ViewHistory = ViewHistory;

/***/ }),
/* 38 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GenericCom = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _app = __webpack_require__(1);

var _preferences = __webpack_require__(39);

var _download_manager = __webpack_require__(40);

var _genericl10n = __webpack_require__(41);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

;
var GenericCom = {};
exports.GenericCom = GenericCom;

var GenericPreferences = /*#__PURE__*/function (_BasePreferences) {
  _inherits(GenericPreferences, _BasePreferences);

  var _super = _createSuper(GenericPreferences);

  function GenericPreferences() {
    _classCallCheck(this, GenericPreferences);

    return _super.apply(this, arguments);
  }

  _createClass(GenericPreferences, [{
    key: "_writeToStorage",
    value: function () {
      var _writeToStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee(prefObj) {
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                localStorage.setItem("pdfjs.preferences", JSON.stringify(prefObj));

              case 1:
              case "end":
                return _context.stop();
            }
          }
        }, _callee);
      }));

      function _writeToStorage(_x) {
        return _writeToStorage2.apply(this, arguments);
      }

      return _writeToStorage;
    }()
  }, {
    key: "_readFromStorage",
    value: function () {
      var _readFromStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2(prefObj) {
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                return _context2.abrupt("return", JSON.parse(localStorage.getItem("pdfjs.preferences")));

              case 1:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2);
      }));

      function _readFromStorage(_x2) {
        return _readFromStorage2.apply(this, arguments);
      }

      return _readFromStorage;
    }()
  }]);

  return GenericPreferences;
}(_preferences.BasePreferences);

var GenericExternalServices = /*#__PURE__*/function (_DefaultExternalServi) {
  _inherits(GenericExternalServices, _DefaultExternalServi);

  var _super2 = _createSuper(GenericExternalServices);

  function GenericExternalServices() {
    _classCallCheck(this, GenericExternalServices);

    return _super2.apply(this, arguments);
  }

  _createClass(GenericExternalServices, null, [{
    key: "createDownloadManager",
    value: function createDownloadManager(options) {
      return new _download_manager.DownloadManager(options);
    }
  }, {
    key: "createPreferences",
    value: function createPreferences() {
      return new GenericPreferences();
    }
  }, {
    key: "createL10n",
    value: function createL10n(_ref) {
      var _ref$locale = _ref.locale,
          locale = _ref$locale === void 0 ? "en-US" : _ref$locale;
      return new _genericl10n.GenericL10n(locale);
    }
  }]);

  return GenericExternalServices;
}(_app.DefaultExternalServices);

_app.PDFViewerApplication.externalServices = GenericExternalServices;

/***/ }),
/* 39 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.BasePreferences = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

var _app_options = __webpack_require__(6);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var 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": true,
      "sidebarViewOnLoad": -1,
      "scrollModeOnLoad": -1,
      "spreadModeOnLoad": -1,
      "textLayerMode": 1,
      "useOnlyCssZoom": false,
      "viewOnLoad": 0,
      "disableAutoFetch": false,
      "disableFontFace": false,
      "disableRange": false,
      "disableStream": false
    });
  }

  return defaultPreferences;
}

var BasePreferences = /*#__PURE__*/function () {
  function BasePreferences() {
    var _this = this;

    _classCallCheck(this, BasePreferences);

    if (this.constructor === BasePreferences) {
      throw new Error("Cannot initialize BasePreferences.");
    }

    this.prefs = null;
    this._initializedPromise = getDefaultPreferences().then(function (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(function (prefs) {
      if (!prefs) {
        return;
      }

      for (var name in prefs) {
        var defaultValue = _this.defaults[name],
            prefValue = prefs[name];

        if (defaultValue === undefined || _typeof(prefValue) !== _typeof(defaultValue)) {
          continue;
        }

        _this.prefs[name] = prefValue;
      }
    });
  }

  _createClass(BasePreferences, [{
    key: "_writeToStorage",
    value: function () {
      var _writeToStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee(prefObj) {
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                throw new Error("Not implemented: _writeToStorage");

              case 1:
              case "end":
                return _context.stop();
            }
          }
        }, _callee);
      }));

      function _writeToStorage(_x) {
        return _writeToStorage2.apply(this, arguments);
      }

      return _writeToStorage;
    }()
  }, {
    key: "_readFromStorage",
    value: function () {
      var _readFromStorage2 = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2(prefObj) {
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                throw new Error("Not implemented: _readFromStorage");

              case 1:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2);
      }));

      function _readFromStorage(_x2) {
        return _readFromStorage2.apply(this, arguments);
      }

      return _readFromStorage;
    }()
  }, {
    key: "reset",
    value: function () {
      var _reset = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3() {
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                _context3.next = 2;
                return this._initializedPromise;

              case 2:
                this.prefs = Object.assign(Object.create(null), this.defaults);
                return _context3.abrupt("return", this._writeToStorage(this.defaults));

              case 4:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function reset() {
        return _reset.apply(this, arguments);
      }

      return reset;
    }()
  }, {
    key: "set",
    value: function () {
      var _set = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4(name, value) {
        var defaultValue, valueType, defaultType;
        return _regenerator["default"].wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                _context4.next = 2;
                return this._initializedPromise;

              case 2:
                defaultValue = this.defaults[name];

                if (!(defaultValue === undefined)) {
                  _context4.next = 7;
                  break;
                }

                throw new Error("Set preference: \"".concat(name, "\" is undefined."));

              case 7:
                if (!(value === undefined)) {
                  _context4.next = 9;
                  break;
                }

                throw new Error("Set preference: no value is specified.");

              case 9:
                valueType = _typeof(value);
                defaultType = _typeof(defaultValue);

                if (!(valueType !== defaultType)) {
                  _context4.next = 19;
                  break;
                }

                if (!(valueType === "number" && defaultType === "string")) {
                  _context4.next = 16;
                  break;
                }

                value = value.toString();
                _context4.next = 17;
                break;

              case 16:
                throw new Error("Set preference: \"".concat(value, "\" is a ").concat(valueType, ", ") + "expected a ".concat(defaultType, "."));

              case 17:
                _context4.next = 21;
                break;

              case 19:
                if (!(valueType === "number" && !Number.isInteger(value))) {
                  _context4.next = 21;
                  break;
                }

                throw new Error("Set preference: \"".concat(value, "\" must be an integer."));

              case 21:
                this.prefs[name] = value;
                return _context4.abrupt("return", this._writeToStorage(this.prefs));

              case 23:
              case "end":
                return _context4.stop();
            }
          }
        }, _callee4, this);
      }));

      function set(_x3, _x4) {
        return _set.apply(this, arguments);
      }

      return set;
    }()
  }, {
    key: "get",
    value: function () {
      var _get = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee5(name) {
        var defaultValue, prefValue;
        return _regenerator["default"].wrap(function _callee5$(_context5) {
          while (1) {
            switch (_context5.prev = _context5.next) {
              case 0:
                _context5.next = 2;
                return this._initializedPromise;

              case 2:
                defaultValue = this.defaults[name];

                if (!(defaultValue === undefined)) {
                  _context5.next = 7;
                  break;
                }

                throw new Error("Get preference: \"".concat(name, "\" is undefined."));

              case 7:
                prefValue = this.prefs[name];

                if (!(prefValue !== undefined)) {
                  _context5.next = 10;
                  break;
                }

                return _context5.abrupt("return", prefValue);

              case 10:
                return _context5.abrupt("return", defaultValue);

              case 11:
              case "end":
                return _context5.stop();
            }
          }
        }, _callee5, this);
      }));

      function get(_x5) {
        return _get.apply(this, arguments);
      }

      return get;
    }()
  }, {
    key: "getAll",
    value: function () {
      var _getAll = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee6() {
        return _regenerator["default"].wrap(function _callee6$(_context6) {
          while (1) {
            switch (_context6.prev = _context6.next) {
              case 0:
                _context6.next = 2;
                return this._initializedPromise;

              case 2:
                return _context6.abrupt("return", Object.assign(Object.create(null), this.defaults, this.prefs));

              case 3:
              case "end":
                return _context6.stop();
            }
          }
        }, _callee6, this);
      }));

      function getAll() {
        return _getAll.apply(this, arguments);
      }

      return getAll;
    }()
  }]);

  return BasePreferences;
}();

exports.BasePreferences = BasePreferences;

/***/ }),
/* 40 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.DownloadManager = void 0;

var _pdfjsLib = __webpack_require__(8);

var _viewer_compatibility = __webpack_require__(7);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

;

function _download(blobUrl, filename) {
  var 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();
}

var DownloadManager = /*#__PURE__*/function () {
  function DownloadManager() {
    _classCallCheck(this, DownloadManager);
  }

  _createClass(DownloadManager, [{
    key: "downloadUrl",
    value: function downloadUrl(url, filename) {
      if (!(0, _pdfjsLib.createValidAbsoluteUrl)(url, "http://example.com")) {
        return;
      }

      _download(url + "#pdfjs.action=download", filename);
    }
  }, {
    key: "downloadData",
    value: function downloadData(data, filename, contentType) {
      if (navigator.msSaveBlob) {
        navigator.msSaveBlob(new Blob([data], {
          type: contentType
        }), filename);
        return;
      }

      var blobUrl = (0, _pdfjsLib.createObjectURL)(data, contentType, _viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL);

      _download(blobUrl, filename);
    }
  }, {
    key: "download",
    value: function download(blob, url, filename) {
      var sourceEventType = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : "download";

      if (navigator.msSaveBlob) {
        if (!navigator.msSaveBlob(blob, filename)) {
          this.downloadUrl(url, filename);
        }

        return;
      }

      if (_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
        this.downloadUrl(url, filename);
        return;
      }

      var blobUrl = URL.createObjectURL(blob);

      _download(blobUrl, filename);
    }
  }]);

  return DownloadManager;
}();

exports.DownloadManager = DownloadManager;

/***/ }),
/* 41 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GenericL10n = void 0;

var _regenerator = _interopRequireDefault(__webpack_require__(2));

__webpack_require__(42);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var webL10n = document.webL10n;

var GenericL10n = /*#__PURE__*/function () {
  function GenericL10n(lang) {
    _classCallCheck(this, GenericL10n);

    this._lang = lang;
    this._ready = new Promise(function (resolve, reject) {
      webL10n.setLanguage(lang, function () {
        resolve(webL10n);
      });
    });
  }

  _createClass(GenericL10n, [{
    key: "getLanguage",
    value: function () {
      var _getLanguage = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee() {
        var l10n;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return this._ready;

              case 2:
                l10n = _context.sent;
                return _context.abrupt("return", l10n.getLanguage());

              case 4:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function getLanguage() {
        return _getLanguage.apply(this, arguments);
      }

      return getLanguage;
    }()
  }, {
    key: "getDirection",
    value: function () {
      var _getDirection = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee2() {
        var l10n;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                _context2.next = 2;
                return this._ready;

              case 2:
                l10n = _context2.sent;
                return _context2.abrupt("return", l10n.getDirection());

              case 4:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function getDirection() {
        return _getDirection.apply(this, arguments);
      }

      return getDirection;
    }()
  }, {
    key: "get",
    value: function () {
      var _get = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee3(property, args, fallback) {
        var l10n;
        return _regenerator["default"].wrap(function _callee3$(_context3) {
          while (1) {
            switch (_context3.prev = _context3.next) {
              case 0:
                _context3.next = 2;
                return this._ready;

              case 2:
                l10n = _context3.sent;
                return _context3.abrupt("return", l10n.get(property, args, fallback));

              case 4:
              case "end":
                return _context3.stop();
            }
          }
        }, _callee3, this);
      }));

      function get(_x, _x2, _x3) {
        return _get.apply(this, arguments);
      }

      return get;
    }()
  }, {
    key: "translate",
    value: function () {
      var _translate = _asyncToGenerator( /*#__PURE__*/_regenerator["default"].mark(function _callee4(element) {
        var l10n;
        return _regenerator["default"].wrap(function _callee4$(_context4) {
          while (1) {
            switch (_context4.prev = _context4.next) {
              case 0:
                _context4.next = 2;
                return this._ready;

              case 2:
                l10n = _context4.sent;
                return _context4.abrupt("return", l10n.translate(element));

              case 4:
              case "end":
                return _context4.stop();
            }
          }
        }, _callee4, this);
      }));

      function translate(_x4) {
        return _translate.apply(this, arguments);
      }

      return translate;
    }()
  }]);

  return GenericL10n;
}();

exports.GenericL10n = GenericL10n;

/***/ }),
/* 42 */
/***/ (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 onResourceLoaded() {
      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 get(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 getData() {
      return gL10nData;
    },
    getText: function getText() {
      return gTextData;
    },
    getLanguage: function getLanguage() {
      return gLanguage;
    },
    setLanguage: function setLanguage(lang, callback) {
      loadLocale(lang, function () {
        if (callback) callback();
      });
    },
    getDirection: function getDirection() {
      var rtlList = ['ar', 'he', 'fa', 'ps', 'ur'];
      var shortCode = gLanguage.split('-', 1)[0];
      return rtlList.indexOf(shortCode) >= 0 ? 'rtl' : 'ltr';
    },
    translate: translateFragment,
    getReadyState: function getReadyState() {
      return gReadyState;
    },
    ready: function ready(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);

/***/ }),
/* 43 */
/***/ (function(module, exports, __webpack_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFPrintService = PDFPrintService;

var _ui_utils = __webpack_require__(5);

var _app = __webpack_require__(1);

var _viewer_compatibility = __webpack_require__(7);

var activeService = null;
var overlayManager = null;

function renderPage(activeServiceOnEntry, pdfDocument, pageNumber, size, printResolution, optionalContentConfigPromise) {
  var scratchCanvas = activeService.scratchCanvas;
  var PRINT_UNITS = printResolution / 72.0;
  scratchCanvas.width = Math.floor(size.width * PRINT_UNITS);
  scratchCanvas.height = Math.floor(size.height * PRINT_UNITS);
  var width = Math.floor(size.width * _ui_utils.CSS_UNITS) + "px";
  var height = Math.floor(size.height * _ui_utils.CSS_UNITS) + "px";
  var 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) {
    var renderContext = {
      canvasContext: ctx,
      transform: [PRINT_UNITS, 0, 0, PRINT_UNITS, 0, 0],
      viewport: pdfPage.getViewport({
        scale: 1,
        rotation: size.rotation
      }),
      intent: "print",
      annotationStorage: pdfDocument.annotationStorage,
      optionalContentConfigPromise: optionalContentConfigPromise
    };
    return pdfPage.render(renderContext).promise;
  }).then(function () {
    return {
      width: width,
      height: height
    };
  });
}

function PDFPrintService(pdfDocument, pagesOverview, printContainer, printResolution) {
  var optionalContentConfigPromise = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : null;
  var l10n = arguments.length > 5 ? arguments[5] : undefined;
  this.pdfDocument = pdfDocument;
  this.pagesOverview = pagesOverview;
  this.printContainer = printContainer;
  this._printResolution = printResolution || 150;
  this._optionalContentConfigPromise = optionalContentConfigPromise || pdfDocument.getOptionalContentConfig();
  this.l10n = l10n || _ui_utils.NullL10n;
  this.currentPage = -1;
  this.scratchCanvas = document.createElement("canvas");
}

PDFPrintService.prototype = {
  layout: function layout() {
    this.throwIfInactive();
    var body = document.querySelector("body");
    body.setAttribute("data-pdfjsprinting", true);
    var 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");
    var 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: function destroy() {
    if (activeService !== this) {
      return;
    }

    this.printContainer.textContent = "";
    var 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: function renderPages() {
    var _this = this;

    var pageCount = this.pagesOverview.length;

    var renderNextPage = function renderNextPage(resolve, reject) {
      _this.throwIfInactive();

      if (++_this.currentPage >= pageCount) {
        renderProgress(pageCount, pageCount, _this.l10n);
        resolve();
        return;
      }

      var index = _this.currentPage;
      renderProgress(index, pageCount, _this.l10n);
      renderPage(_this, _this.pdfDocument, index + 1, _this.pagesOverview[index], _this._printResolution, _this._optionalContentConfigPromise).then(_this.useRenderedPage.bind(_this)).then(function () {
        renderNextPage(resolve, reject);
      }, reject);
    };

    return new Promise(renderNextPage);
  },
  useRenderedPage: function useRenderedPage(printItem) {
    this.throwIfInactive();
    var img = document.createElement("img");
    img.style.width = printItem.width;
    img.style.height = printItem.height;
    var scratchCanvas = this.scratchCanvas;

    if ("toBlob" in scratchCanvas && !_viewer_compatibility.viewerCompatibilityParams.disableCreateObjectURL) {
      scratchCanvas.toBlob(function (blob) {
        img.src = URL.createObjectURL(blob);
      });
    } else {
      img.src = scratchCanvas.toDataURL();
    }

    var wrapper = document.createElement("div");
    wrapper.appendChild(img);
    this.printContainer.appendChild(wrapper);
    return new Promise(function (resolve, reject) {
      img.onload = resolve;
      img.onerror = reject;
    });
  },
  performPrint: function performPrint() {
    var _this2 = this;

    this.throwIfInactive();
    return new Promise(function (resolve) {
      setTimeout(function () {
        if (!_this2.active) {
          resolve();
          return;
        }

        print.call(window);
        setTimeout(resolve, 20);
      }, 0);
    });
  },

  get active() {
    return this === activeService;
  },

  throwIfInactive: function throwIfInactive() {
    if (!this.active) {
      throw new Error("This print request was cancelled or completed.");
    }
  }
};
var 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;
    }

    var activeServiceOnEntry = activeService;
    activeService.renderPages().then(function () {
      return activeServiceOnEntry.performPrint();
    })["catch"](function () {}).then(function () {
      if (activeServiceOnEntry.active) {
        abort();
      }
    });
  }
};

function dispatchEvent(eventType) {
  var 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) {
  var progressContainer = document.getElementById("printServiceOverlay");
  var progress = Math.round(100 * index / total);
  var progressBar = progressContainer.querySelector("progress");
  var progressPerc = progressContainer.querySelector(".relative-progress");
  progressBar.value = progress;
  l10n.get("print_progress_percent", {
    progress: progress
  }, progress + "%").then(function (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) {
  var stopPropagationIfNeeded = function stopPropagationIfNeeded(event) {
    if (event.detail !== "custom" && event.stopImmediatePropagation) {
      event.stopImmediatePropagation();
    }
  };

  window.addEventListener("beforeprint", stopPropagationIfNeeded);
  window.addEventListener("afterprint", stopPropagationIfNeeded);
}

var 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: function createPrintService(pdfDocument, pagesOverview, printContainer, printResolution, optionalContentConfigPromise, l10n) {
    if (activeService) {
      throw new Error("The print service is created and active.");
    }

    activeService = new PDFPrintService(pdfDocument, pagesOverview, printContainer, printResolution, optionalContentConfigPromise, l10n);
    return activeService;
  }
};

/***/ })
/******/ ]);
//# sourceMappingURL=viewer.js.map