/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2018 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */

(function webpackUniversalModuleDefinition(root, factory) {
  if (typeof exports === "object" && typeof module === "object")
    module.exports = factory();
  else if (typeof define === "function" && define.amd)
    define("pdfjs-dist/web/pdf_viewer", [], factory);
  else if (typeof exports === "object")
    exports["pdfjs-dist/web/pdf_viewer"] = factory();
  else root["pdfjs-dist/web/pdf_viewer"] = root.pdfjsViewer = factory();
})(this, function () {
  return /******/ (function (modules) {
    // webpackBootstrap
    /******/ // The module cache
    /******/ var installedModules = {};
    /******/
    /******/ // The require function
    /******/ function __w_pdfjs_require__(moduleId) {
      /******/
      /******/ // Check if module is in cache
      /******/ if (installedModules[moduleId]) {
        /******/ return installedModules[moduleId].exports;
        /******/
      }
      /******/ // Create a new module (and put it into the cache)
      /******/ var module = (installedModules[moduleId] = {
        /******/ i: moduleId,
        /******/ l: false,
        /******/ exports: {},
        /******/
      });
      /******/
      /******/ // Execute the module function
      /******/ modules[moduleId].call(
        module.exports,
        module,
        module.exports,
        __w_pdfjs_require__
      );
      /******/
      /******/ // Flag the module as loaded
      /******/ module.l = true;
      /******/
      /******/ // Return the exports of the module
      /******/ return module.exports;
      /******/
    }
    /******/
    /******/
    /******/ // expose the modules object (__webpack_modules__)
    /******/ __w_pdfjs_require__.m = modules;
    /******/
    /******/ // expose the module cache
    /******/ __w_pdfjs_require__.c = installedModules;
    /******/
    /******/ // define getter function for harmony exports
    /******/ __w_pdfjs_require__.d = function (exports, name, getter) {
      /******/ if (!__w_pdfjs_require__.o(exports, name)) {
        /******/ Object.defineProperty(exports, name, {
          enumerable: true,
          get: getter,
        });
        /******/
      }
      /******/
    };
    /******/
    /******/ // define __esModule on exports
    /******/ __w_pdfjs_require__.r = function (exports) {
      /******/ if (typeof Symbol !== "undefined" && Symbol.toStringTag) {
        /******/ Object.defineProperty(exports, Symbol.toStringTag, {
          value: "Module",
        });
        /******/
      }
      /******/ Object.defineProperty(exports, "__esModule", { value: true });
      /******/
    };
    /******/
    /******/ // create a fake namespace object
    /******/ // mode & 1: value is a module id, require it
    /******/ // mode & 2: merge all properties of value into the ns
    /******/ // mode & 4: return value when already ns object
    /******/ // mode & 8|1: behave like require
    /******/ __w_pdfjs_require__.t = function (value, mode) {
      /******/ if (mode & 1) value = __w_pdfjs_require__(value);
      /******/ if (mode & 8) return value;
      /******/ if (
        mode & 4 &&
        typeof value === "object" &&
        value &&
        value.__esModule
      )
        return value;
      /******/ var ns = Object.create(null);
      /******/ __w_pdfjs_require__.r(ns);
      /******/ Object.defineProperty(ns, "default", {
        enumerable: true,
        value: value,
      });
      /******/ if (mode & 2 && typeof value != "string")
        for (var key in value)
          __w_pdfjs_require__.d(
            ns,
            key,
            function (key) {
              return value[key];
            }.bind(null, key)
          );
      /******/ return ns;
      /******/
    };
    /******/
    /******/ // getDefaultExport function for compatibility with non-harmony modules
    /******/ __w_pdfjs_require__.n = function (module) {
      /******/ var getter =
        module && module.__esModule
          ? /******/ function getDefault() {
              return module["default"];
            }
          : /******/ function getModuleExports() {
              return module;
            };
      /******/ __w_pdfjs_require__.d(getter, "a", getter);
      /******/ return getter;
      /******/
    };
    /******/
    /******/ // Object.prototype.hasOwnProperty.call
    /******/ __w_pdfjs_require__.o = function (object, property) {
      return Object.prototype.hasOwnProperty.call(object, property);
    };
    /******/
    /******/ // __webpack_public_path__
    /******/ __w_pdfjs_require__.p = "";
    /******/
    /******/
    /******/ // Load entry module and return exports
    /******/ return __w_pdfjs_require__((__w_pdfjs_require__.s = 0));
    /******/
  })(
    /************************************************************************/
    /******/ [
      /* 0 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.NullL10n =
          exports.GenericL10n =
          exports.ProgressBar =
          exports.DownloadManager =
          exports.EventBus =
          exports.PDFFindController =
          exports.PDFHistory =
          exports.DefaultAnnotationLayerFactory =
          exports.AnnotationLayerBuilder =
          exports.DefaultTextLayerFactory =
          exports.TextLayerBuilder =
          exports.SimpleLinkService =
          exports.PDFLinkService =
          exports.PDFPageView =
          exports.PDFSinglePageViewer =
          exports.PDFViewer =
            undefined;

        var _annotation_layer_builder = __w_pdfjs_require__(1);

        var _text_layer_builder = __w_pdfjs_require__(10);

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdf_link_service = __w_pdfjs_require__(8);

        var _download_manager = __w_pdfjs_require__(11);

        var _genericl10n = __w_pdfjs_require__(12);

        var _pdf_find_controller = __w_pdfjs_require__(14);

        var _pdf_history = __w_pdfjs_require__(16);

        var _pdf_page_view = __w_pdfjs_require__(17);

        var _pdf_single_page_viewer = __w_pdfjs_require__(20);

        var _pdf_viewer = __w_pdfjs_require__(22);

        var pdfjsVersion = "2.0.943";
        var pdfjsBuild = "dc98bf76";
        exports.PDFViewer = _pdf_viewer.PDFViewer;
        exports.PDFSinglePageViewer =
          _pdf_single_page_viewer.PDFSinglePageViewer;
        exports.PDFPageView = _pdf_page_view.PDFPageView;
        exports.PDFLinkService = _pdf_link_service.PDFLinkService;
        exports.SimpleLinkService = _pdf_link_service.SimpleLinkService;
        exports.TextLayerBuilder = _text_layer_builder.TextLayerBuilder;
        exports.DefaultTextLayerFactory =
          _text_layer_builder.DefaultTextLayerFactory;
        exports.AnnotationLayerBuilder =
          _annotation_layer_builder.AnnotationLayerBuilder;
        exports.DefaultAnnotationLayerFactory =
          _annotation_layer_builder.DefaultAnnotationLayerFactory;
        exports.PDFHistory = _pdf_history.PDFHistory;
        exports.PDFFindController = _pdf_find_controller.PDFFindController;
        exports.EventBus = _ui_utils.EventBus;
        exports.DownloadManager = _download_manager.DownloadManager;
        exports.ProgressBar = _ui_utils.ProgressBar;
        exports.GenericL10n = _genericl10n.GenericL10n;
        exports.NullL10n = _ui_utils.NullL10n;

        /***/
      },
      /* 1 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.DefaultAnnotationLayerFactory = exports.AnnotationLayerBuilder =
          undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _pdfjsLib = __w_pdfjs_require__(2);

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdf_link_service = __w_pdfjs_require__(8);

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

        var AnnotationLayerBuilder = (function () {
          function AnnotationLayerBuilder(_ref) {
            var pageDiv = _ref.pageDiv,
              pdfPage = _ref.pdfPage,
              linkService = _ref.linkService,
              downloadManager = _ref.downloadManager,
              _ref$imageResourcesPa = _ref.imageResourcesPath,
              imageResourcesPath =
                _ref$imageResourcesPa === undefined
                  ? ""
                  : _ref$imageResourcesPa,
              _ref$renderInteractiv = _ref.renderInteractiveForms,
              renderInteractiveForms =
                _ref$renderInteractiv === undefined
                  ? false
                  : _ref$renderInteractiv,
              _ref$l10n = _ref.l10n,
              l10n = _ref$l10n === undefined ? _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.div = null;
            this._cancelled = false;
          }

          _createClass(AnnotationLayerBuilder, [
            {
              key: "addRender",
              value: function addRender(data) {
                // this.show();
                var viewport = this.pdfPage.getViewport();

                if (_pdfjsLib.AnnotationLayer) {
                  // this.div.innerHTML = "";

                  var parameters = {
                    viewport: viewport.clone({ dontFlip: true }),
                    div: this.div,
                    annotations: data,
                    page: this.pdfPage,
                    imageResourcesPath: this.imageResourcesPath,
                    renderInteractiveForms: this.renderInteractiveForms,
                    linkService: this.linkService,
                    downloadManager: this.downloadManager,
                  };
                  _pdfjsLib.AnnotationLayer.render(parameters);
                } else {
                  this.render(viewport);
                }
              },
            },
            {
              key: "render",
              value: function render(viewport) {
                var _this = this;

                var annotations = this.pdfPage.getAnnotation();

                if (_this._cancelled) {
                  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,
                };

                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;
                  if (annotations.length === 0) {
                    // this.hide();
                    return;
                  } else {
                    // this.show();
                  }
                  _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");
              },
            },
            {
              key: "show",
              value: function show() {
                if (!this.div) {
                  return;
                }
                this.div.setAttribute("hidden", "false");
              },
            },
          ]);

          return AnnotationLayerBuilder;
        })();

        var DefaultAnnotationLayerFactory = (function () {
          function DefaultAnnotationLayerFactory() {
            _classCallCheck(this, DefaultAnnotationLayerFactory);
          }

          _createClass(DefaultAnnotationLayerFactory, [
            {
              key: "createAnnotationLayerBuilder",
              value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
                var imageResourcesPath =
                  arguments.length > 2 && arguments[2] !== undefined
                    ? arguments[2]
                    : "";
                var renderInteractiveForms =
                  arguments.length > 3 && arguments[3] !== undefined
                    ? arguments[3]
                    : false;
                var l10n =
                  arguments.length > 4 && arguments[4] !== undefined
                    ? arguments[4]
                    : _ui_utils.NullL10n;

                return new AnnotationLayerBuilder({
                  pageDiv: pageDiv,
                  pdfPage: pdfPage,
                  imageResourcesPath: imageResourcesPath,
                  renderInteractiveForms: renderInteractiveForms,
                  linkService: new _pdf_link_service.SimpleLinkService(),
                  l10n: l10n,
                });
              },
            },
          ]);

          return DefaultAnnotationLayerFactory;
        })();

        exports.AnnotationLayerBuilder = AnnotationLayerBuilder;
        exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;

        /***/
      },
      /* 2 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        var pdfjsLib = void 0;
        if (typeof window !== "undefined" && window["pdfjs-dist/build/pdf"]) {
          pdfjsLib = window["pdfjs-dist/build/pdf"];
        } else {
          pdfjsLib = require("../build/pdf.js");
        }
        module.exports = pdfjsLib;

        /***/
      },
      /* 3 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.moveToEndOfArray =
          exports.waitOnEventOrTimeout =
          exports.WaitOnType =
          exports.animationStarted =
          exports.normalizeWheelEventDelta =
          exports.binarySearchFirstItem =
          exports.watchScroll =
          exports.scrollIntoView =
          exports.getOutputScale =
          exports.approximateFraction =
          exports.getPageSizeInches =
          exports.roundToDivide =
          exports.getVisibleElements =
          exports.backtrackBeforeAllVisibleElements =
          exports.parseQueryString =
          exports.noContextMenuHandler =
          exports.getPDFFileNameFromURL =
          exports.ProgressBar =
          exports.EventBus =
          exports.NullL10n =
          exports.TextLayerMode =
          exports.RendererType =
          exports.PresentationModeState =
          exports.isPortraitOrientation =
          exports.isValidRotation =
          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 =
            undefined;

        var _regenerator = __w_pdfjs_require__(4);

        var _regenerator2 = _interopRequireDefault(_regenerator);

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _typeof =
          typeof Symbol === "function" && typeof Symbol.iterator === "symbol"
            ? function (obj) {
                return typeof obj;
              }
            : function (obj) {
                return obj &&
                  typeof Symbol === "function" &&
                  obj.constructor === Symbol &&
                  obj !== Symbol.prototype
                  ? "symbol"
                  : typeof obj;
              };

        var _slicedToArray = (function () {
          function sliceIterator(arr, i) {
            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"]) _i["return"]();
              } finally {
                if (_d) throw _e;
              }
            }
            return _arr;
          }
          return function (arr, i) {
            if (Array.isArray(arr)) {
              return arr;
            } else if (Symbol.iterator in Object(arr)) {
              return sliceIterator(arr, i);
            } else {
              throw new TypeError(
                "Invalid attempt to destructure non-iterable instance"
              );
            }
          };
        })();

        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 _asyncToGenerator(fn) {
          return function () {
            var gen = fn.apply(this, arguments);
            return new Promise(function (resolve, reject) {
              function step(key, arg) {
                try {
                  var info = gen[key](arg);
                  var value = info.value;
                } catch (error) {
                  reject(error);
                  return;
                }
                if (info.done) {
                  resolve(value);
                } else {
                  return Promise.resolve(value).then(
                    function (value) {
                      step("next", value);
                    },
                    function (err) {
                      step("throw", err);
                    }
                  );
                }
              }
              return step("next");
            });
          };
        }

        var CSS_UNITS = 96.0 / 72.0;
        var DEFAULT_SCALE_VALUE = "auto";
        var DEFAULT_SCALE = 1.0;
        var MIN_SCALE = 0.1;
        var MAX_SCALE = 10.0;
        var UNKNOWN_SCALE = 0;
        var MAX_AUTO_SCALE = 1.25;
        var SCROLLBAR_PADDING = 40;
        var VERTICAL_PADDING = 5;
        var PresentationModeState = {
          UNKNOWN: 0,
          NORMAL: 1,
          CHANGING: 2,
          FULLSCREEN: 3,
        };
        var RendererType = {
          CANVAS: "canvas",
          SVG: "svg",
        };
        var TextLayerMode = {
          DISABLE: 0,
          ENABLE: 1,
          ENABLE_ENHANCE: 2,
        };
        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 () {
            var _ref = _asyncToGenerator(
              /*#__PURE__*/ _regenerator2.default.mark(function _callee() {
                return _regenerator2.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,
                  this
                );
              })
            );

            function getLanguage() {
              return _ref.apply(this, arguments);
            }

            return getLanguage;
          })(),
          getDirection: (function () {
            var _ref2 = _asyncToGenerator(
              /*#__PURE__*/ _regenerator2.default.mark(function _callee2() {
                return _regenerator2.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,
                  this
                );
              })
            );

            function getDirection() {
              return _ref2.apply(this, arguments);
            }

            return getDirection;
          })(),
          get: (function () {
            var _ref3 = _asyncToGenerator(
              /*#__PURE__*/ _regenerator2.default.mark(function _callee3(
                property,
                args,
                fallback
              ) {
                return _regenerator2.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,
                  this
                );
              })
            );

            function get(_x, _x2, _x3) {
              return _ref3.apply(this, arguments);
            }

            return get;
          })(),
          translate: (function () {
            var _ref4 = _asyncToGenerator(
              /*#__PURE__*/ _regenerator2.default.mark(function _callee4(
                element
              ) {
                return _regenerator2.default.wrap(
                  function _callee4$(_context4) {
                    while (1) {
                      switch ((_context4.prev = _context4.next)) {
                        case 0:
                        case "end":
                          return _context4.stop();
                      }
                    }
                  },
                  _callee4,
                  this
                );
              })
            );

            function translate(_x4) {
              return _ref4.apply(this, arguments);
            }

            return translate;
          })(),
        };
        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 (items.length === 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 = void 0;
          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(_ref5) {
          var view = _ref5.view,
            userUnit = _ref5.userUnit,
            rotate = _ref5.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;
          }

          if (!views[index]) {
            return;
          }
          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 = [],
            view = void 0,
            element = void 0;
          var currentHeight = void 0,
            viewHeight = void 0,
            viewBottom = void 0,
            hiddenHeight = void 0;
          var currentWidth = void 0,
            viewWidth = void 0,
            viewRight = void 0,
            hiddenWidth = void 0;
          var percentVisible = void 0;
          var firstVisibleElementInd =
            views.length === 0
              ? 0
              : binarySearchFirstItem(
                  views,
                  horizontal
                    ? isElementRightAfterViewLeft
                    : isElementBottomAfterViewTop
                );
          if (views.length > 0 && !horizontal) {
            firstVisibleElementInd = backtrackBeforeAllVisibleElements(
              firstVisibleElementInd,
              views,
              top
            );
          }
          var lastEdge = horizontal ? right : -1;
          for (var i = firstVisibleElementInd, ii = views.length; i < ii; i++) {
            view = views[i];
            element = view.div;
            currentWidth = element.offsetLeft + element.clientLeft;
            currentHeight = element.offsetTop + element.clientTop;
            viewWidth = element.clientWidth;
            viewHeight = element.clientHeight;
            viewRight = currentWidth + viewWidth;
            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;
            }
            hiddenHeight =
              Math.max(0, top - currentHeight) +
              Math.max(0, viewBottom - bottom);
            hiddenWidth =
              Math.max(0, left - currentWidth) + Math.max(0, viewRight - right);
            percentVisible =
              (((viewHeight - hiddenHeight) * (viewWidth - hiddenWidth) * 100) /
                viewHeight /
                viewWidth) |
              0;
            visible.push({
              id: view.id,
              x: currentWidth,
              y: currentHeight,
              view: view,
              percent: percentVisible,
            });
          }
          var first = visible[0];
          var 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,
            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 = /^(?:(?:[^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
          var reFilename = /[^\/?#=]+\.pdf\b(?!.*\.pdf\b)/i;
          var splitURI = reURI.exec(url);
          var suggestedFilename =
            reFilename.exec(splitURI[1]) ||
            reFilename.exec(splitURI[2]) ||
            reFilename.exec(splitURI[3]);
          if (suggestedFilename) {
            suggestedFilename = suggestedFilename[0];
            if (suggestedFilename.includes("%")) {
              try {
                suggestedFilename = reFilename.exec(
                  decodeURIComponent(suggestedFilename)
                )[0];
              } catch (ex) {}
            }
          }
          return suggestedFilename || defaultFilename;
        }
        function normalizeWheelEventDelta(evt) {
          var delta = Math.sqrt(
            evt.deltaX * evt.deltaX + evt.deltaY * evt.deltaY
          );
          var angle = Math.atan2(evt.deltaY, evt.deltaX);
          if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
            delta = -delta;
          }
          var MOUSE_DOM_DELTA_PIXEL_MODE = 0;
          var MOUSE_DOM_DELTA_LINE_MODE = 1;
          var MOUSE_PIXELS_PER_LINE = 30;
          var MOUSE_LINES_PER_PAGE = 30;
          if (evt.deltaMode === MOUSE_DOM_DELTA_PIXEL_MODE) {
            delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE;
          } else if (evt.deltaMode === MOUSE_DOM_DELTA_LINE_MODE) {
            delta /= MOUSE_LINES_PER_PAGE;
          }
          return delta;
        }
        function isValidRotation(angle) {
          return Number.isInteger(angle) && angle % 90 === 0;
        }
        function isPortraitOrientation(size) {
          return size.width <= size.height;
        }
        var WaitOnType = {
          EVENT: "event",
          TIMEOUT: "timeout",
        };
        function waitOnEventOrTimeout(_ref6) {
          var target = _ref6.target,
            name = _ref6.name,
            _ref6$delay = _ref6.delay,
            delay = _ref6$delay === undefined ? 0 : _ref6$delay;

          return new Promise(function (resolve, reject) {
            if (
              (typeof target === "undefined"
                ? "undefined"
                : _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);
        });

        var EventBus = (function () {
          function EventBus() {
            var _ref7 =
                arguments.length > 0 && arguments[0] !== undefined
                  ? arguments[0]
                  : {},
              _ref7$dispatchToDOM = _ref7.dispatchToDOM,
              dispatchToDOM =
                _ref7$dispatchToDOM === undefined ? false : _ref7$dispatchToDOM;

            _classCallCheck(this, EventBus);

            this._listeners = Object.create(null);
            this._dispatchToDOM = dispatchToDOM === true;
          }

          _createClass(EventBus, [
            {
              key: "on",
              value: function on(eventName, listener) {
                var eventListeners = this._listeners[eventName];
                if (!eventListeners) {
                  eventListeners = [];
                  this._listeners[eventName] = eventListeners;
                }
                eventListeners.push(listener);
              },
            },
            {
              key: "off",
              value: function off(eventName, listener) {
                var eventListeners = this._listeners[eventName];
                var i = void 0;
                if (
                  !eventListeners ||
                  (i = eventListeners.indexOf(listener)) < 0
                ) {
                  return;
                }
                eventListeners.splice(i, 1);
              },
            },
            {
              key: "dispatch",
              value: function dispatch(eventName) {
                var eventListeners = this._listeners[eventName];
                if (!eventListeners || eventListeners.length === 0) {
                  if (this._dispatchToDOM) {
                    var _args5 = Array.prototype.slice.call(arguments, 1);
                    this._dispatchDOMEvent(eventName, _args5);
                  }
                  return;
                }
                var args = Array.prototype.slice.call(arguments, 1);
                eventListeners.slice(0).forEach(function (listener) {
                  listener.apply(null, args);
                });
                if (this._dispatchToDOM) {
                  this._dispatchDOMEvent(eventName, args);
                }
              },
            },
            {
              key: "_dispatchDOMEvent",
              value: function _dispatchDOMEvent(eventName) {
                var args =
                  arguments.length > 1 && arguments[1] !== undefined
                    ? arguments[1]
                    : null;

                if (!this._dispatchToDOM) {
                  return;
                }
                var details = Object.create(null);
                if (args && args.length > 0) {
                  var obj = args[0];
                  for (var key in obj) {
                    var value = obj[key];
                    if (key === "source") {
                      if (value === window || value === document) {
                        return;
                      }
                      continue;
                    }
                    details[key] = value;
                  }
                }
                var event = document.createEvent("CustomEvent");
                event.initCustomEvent(eventName, true, true, details);
                document.dispatchEvent(event);
              },
            },
          ]);

          return EventBus;
        })();

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

        var ProgressBar = (function () {
          function ProgressBar(id) {
            var _ref8 =
                arguments.length > 1 && arguments[1] !== undefined
                  ? arguments[1]
                  : {},
              height = _ref8.height,
              width = _ref8.width,
              units = _ref8.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.setAttribute(
                    "style",
                    "width: calc(100% - " + 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;
        })();

        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];
          }
        }

        exports.CSS_UNITS = CSS_UNITS;
        exports.DEFAULT_SCALE_VALUE = DEFAULT_SCALE_VALUE;
        exports.DEFAULT_SCALE = DEFAULT_SCALE;
        exports.MIN_SCALE = MIN_SCALE;
        exports.MAX_SCALE = MAX_SCALE;
        exports.UNKNOWN_SCALE = UNKNOWN_SCALE;
        exports.MAX_AUTO_SCALE = MAX_AUTO_SCALE;
        exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
        exports.VERTICAL_PADDING = VERTICAL_PADDING;
        exports.isValidRotation = isValidRotation;
        exports.isPortraitOrientation = isPortraitOrientation;
        exports.PresentationModeState = PresentationModeState;
        exports.RendererType = RendererType;
        exports.TextLayerMode = TextLayerMode;
        exports.NullL10n = NullL10n;
        exports.EventBus = EventBus;
        exports.ProgressBar = ProgressBar;
        exports.getPDFFileNameFromURL = getPDFFileNameFromURL;
        exports.noContextMenuHandler = noContextMenuHandler;
        exports.parseQueryString = parseQueryString;
        exports.backtrackBeforeAllVisibleElements =
          backtrackBeforeAllVisibleElements;
        exports.getVisibleElements = getVisibleElements;
        exports.roundToDivide = roundToDivide;
        exports.getPageSizeInches = getPageSizeInches;
        exports.approximateFraction = approximateFraction;
        exports.getOutputScale = getOutputScale;
        exports.scrollIntoView = scrollIntoView;
        exports.watchScroll = watchScroll;
        exports.binarySearchFirstItem = binarySearchFirstItem;
        exports.normalizeWheelEventDelta = normalizeWheelEventDelta;
        exports.animationStarted = animationStarted;
        exports.WaitOnType = WaitOnType;
        exports.waitOnEventOrTimeout = waitOnEventOrTimeout;
        exports.moveToEndOfArray = moveToEndOfArray;

        /***/
      },
      /* 4 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        module.exports = __w_pdfjs_require__(5);

        /***/
      },
      /* 5 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        var g =
          (function () {
            return this;
          })() || Function("return this")();
        var hadRuntime =
          g.regeneratorRuntime &&
          Object.getOwnPropertyNames(g).indexOf("regeneratorRuntime") >= 0;
        var oldRuntime = hadRuntime && g.regeneratorRuntime;
        g.regeneratorRuntime = undefined;
        module.exports = __w_pdfjs_require__(6);
        if (hadRuntime) {
          g.regeneratorRuntime = oldRuntime;
        } else {
          try {
            delete g.regeneratorRuntime;
          } catch (e) {
            g.regeneratorRuntime = undefined;
          }
        }

        /***/
      },
      /* 6 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";
        /* WEBPACK VAR INJECTION */ (function (module) {
          var _typeof =
            typeof Symbol === "function" && typeof Symbol.iterator === "symbol"
              ? function (obj) {
                  return typeof obj;
                }
              : function (obj) {
                  return obj &&
                    typeof Symbol === "function" &&
                    obj.constructor === Symbol &&
                    obj !== Symbol.prototype
                    ? "symbol"
                    : typeof obj;
                };

          !(function (global) {
            "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";
            var inModule = (false ? undefined : _typeof(module)) === "object";
            var runtime = global.regeneratorRuntime;
            if (runtime) {
              if (inModule) {
                module.exports = runtime;
              }
              return;
            }
            runtime = global.regeneratorRuntime = inModule
              ? module.exports
              : {};
            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;
            }
            runtime.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;
            GeneratorFunctionPrototype[toStringTagSymbol] =
              GeneratorFunction.displayName = "GeneratorFunction";
            function defineIteratorMethods(prototype) {
              ["next", "throw", "return"].forEach(function (method) {
                prototype[method] = function (arg) {
                  return this._invoke(method, arg);
                };
              });
            }
            runtime.isGeneratorFunction = function (genFun) {
              var ctor = typeof genFun === "function" && genFun.constructor;
              return ctor
                ? ctor === GeneratorFunction ||
                    (ctor.displayName || ctor.name) === "GeneratorFunction"
                : false;
            };
            runtime.mark = function (genFun) {
              if (Object.setPrototypeOf) {
                Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
              } else {
                genFun.__proto__ = GeneratorFunctionPrototype;
                if (!(toStringTagSymbol in genFun)) {
                  genFun[toStringTagSymbol] = "GeneratorFunction";
                }
              }
              genFun.prototype = Object.create(Gp);
              return genFun;
            };
            runtime.awrap = function (arg) {
              return { __await: arg };
            };
            function AsyncIterator(generator) {
              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 === "undefined"
                      ? "undefined"
                      : _typeof(value)) === "object" &&
                    hasOwn.call(value, "__await")
                  ) {
                    return Promise.resolve(value.__await).then(
                      function (value) {
                        invoke("next", value, resolve, reject);
                      },
                      function (err) {
                        invoke("throw", err, resolve, reject);
                      }
                    );
                  }
                  return Promise.resolve(value).then(function (unwrapped) {
                    result.value = unwrapped;
                    resolve(result);
                  }, reject);
                }
              }
              var previousPromise;
              function enqueue(method, arg) {
                function callInvokeWithMethodAndArg() {
                  return new Promise(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;
            };
            runtime.AsyncIterator = AsyncIterator;
            runtime.async = function (innerFn, outerFn, self, tryLocsList) {
              var iter = new AsyncIterator(
                wrap(innerFn, outerFn, self, tryLocsList)
              );
              return runtime.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);
            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);
            }
            runtime.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 };
            }
            runtime.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;
              },
            };
          })(
            (function () {
              return this;
            })() || Function("return this")()
          );
          /* WEBPACK VAR INJECTION */
        }).call(this, __w_pdfjs_require__(7)(module));

        /***/
      },
      /* 7 */
      /***/ function (module, exports, __w_pdfjs_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;
        };

        /***/
      },
      /* 8 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.SimpleLinkService = exports.PDFLinkService = undefined;

        var _typeof =
          typeof Symbol === "function" && typeof Symbol.iterator === "symbol"
            ? function (obj) {
                return typeof obj;
              }
            : function (obj) {
                return obj &&
                  typeof Symbol === "function" &&
                  obj.constructor === Symbol &&
                  obj !== Symbol.prototype
                  ? "symbol"
                  : typeof obj;
              };

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _dom_events = __w_pdfjs_require__(9);

        var _ui_utils = __w_pdfjs_require__(3);

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

        var PDFLinkService = (function () {
          function PDFLinkService() {
            var _ref =
                arguments.length > 0 && arguments[0] !== undefined
                  ? arguments[0]
                  : {},
              eventBus = _ref.eventBus,
              _ref$externalLinkTarg = _ref.externalLinkTarget,
              externalLinkTarget =
                _ref$externalLinkTarg === undefined
                  ? null
                  : _ref$externalLinkTarg,
              _ref$externalLinkRel = _ref.externalLinkRel,
              externalLinkRel =
                _ref$externalLinkRel === undefined
                  ? null
                  : _ref$externalLinkRel;

            _classCallCheck(this, PDFLinkService);

            this.eventBus = eventBus || (0, _dom_events.getGlobalEventBus)();
            this.externalLinkTarget = externalLinkTarget;
            this.externalLinkRel = externalLinkRel;
            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],
                    pageNumber = void 0;
                  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: "' +
                              destRef +
                              '" is not ' +
                              ('a valid page reference, for dest="' +
                                dest +
                                '".')
                          );
                        });
                      return;
                    }
                  } else if (Number.isInteger(destRef)) {
                    pageNumber = destRef + 1;
                  } else {
                    console.error(
                      'PDFLinkService.navigateTo: "' +
                        destRef +
                        '" is not ' +
                        ('a valid destination reference, for dest="' +
                          dest +
                          '".')
                    );
                    return;
                  }
                  if (
                    !pageNumber ||
                    pageNumber < 1 ||
                    pageNumber > _this.pagesCount
                  ) {
                    console.error(
                      'PDFLinkService.navigateTo: "' +
                        pageNumber +
                        '" is not ' +
                        ('a valid page number, for dest="' + dest + '".')
                    );
                    return;
                  }
                  if (_this.pdfHistory) {
                    _this.pdfHistory.pushCurrentPosition();
                    _this.pdfHistory.push({
                      namedDest: namedDest,
                      explicitDest: explicitDest,
                      pageNumber: pageNumber,
                    });
                  }
                  _this.pdfViewer.scrollPageIntoView({
                    pageNumber: pageNumber,
                    destArray: explicitDest,
                  });
                };
                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: "' +
                        data.explicitDest +
                        '" is' +
                        (' not a valid destination array, for dest="' +
                          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 = void 0,
                  dest = void 0;
                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 ("nameddest" in params) {
                    this.navigateTo(params.nameddest);
                    return;
                  }
                  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: "' +
                            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,
                    });
                  }
                } else {
                  dest = unescape(hash);
                  try {
                    dest = JSON.parse(dest);
                    if (!Array.isArray(dest)) {
                      dest = dest.toString();
                    }
                  } catch (ex) {}
                  if (
                    typeof dest === "string" ||
                    isValidExplicitDestination(dest)
                  ) {
                    this.navigateTo(dest);
                    return;
                  }
                  console.error(
                    'PDFLinkService.setHash: "' +
                      unescape(hash) +
                      '" is not ' +
                      "a valid destination."
                  );
                }
              },
            },
            {
              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.num + " " + pageRef.gen + " R";
                this._pagesRefCache[refStr] = pageNum;
              },
            },
            {
              key: "_cachedPageNumber",
              value: function _cachedPageNumber(pageRef) {
                var refStr = pageRef.num + " " + pageRef.gen + " R";
                return (
                  (this._pagesRefCache && this._pagesRefCache[refStr]) || null
                );
              },
            },
            {
              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;
        })();

        function isValidExplicitDestination(dest) {
          if (!Array.isArray(dest)) {
            return false;
          }
          var destLength = dest.length,
            allowNull = true;
          if (destLength < 2) {
            return false;
          }
          var page = dest[0];
          if (
            !(
              (typeof page === "undefined" ? "undefined" : _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 === "undefined" ? "undefined" : _typeof(zoom)) ===
                "object" && typeof zoom.name === "string"
            )
          ) {
            return false;
          }
          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 = (function () {
          function SimpleLinkService() {
            _classCallCheck(this, SimpleLinkService);

            this.externalLinkTarget = null;
            this.externalLinkRel = null;
          }

          _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: "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.PDFLinkService = PDFLinkService;
        exports.SimpleLinkService = SimpleLinkService;

        /***/
      },
      /* 9 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.getGlobalEventBus = exports.attachDOMEventsToEventBus =
          undefined;

        var _ui_utils = __w_pdfjs_require__(3);

        function attachDOMEventsToEventBus(eventBus) {
          eventBus.on("documentload", function () {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("documentload", true, true, {});
            window.dispatchEvent(event);
          });
          eventBus.on("pagerendered", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("pagerendered", true, true, {
              pageNumber: evt.pageNumber,
              cssTransform: evt.cssTransform,
            });
            evt.source.div.dispatchEvent(event);
          });
          eventBus.on("textlayerrendered", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("textlayerrendered", true, true, {
              pageNumber: evt.pageNumber,
            });
            evt.source.textLayerDiv.dispatchEvent(event);
          });
          eventBus.on("pagechange", function (evt) {
            var event = document.createEvent("UIEvents");
            event.initUIEvent("pagechange", true, true, window, 0);
            event.pageNumber = evt.pageNumber;
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("pagesinit", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("pagesinit", true, true, null);
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("pagesloaded", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("pagesloaded", true, true, {
              pagesCount: evt.pagesCount,
            });
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("scalechange", function (evt) {
            var event = document.createEvent("UIEvents");
            event.initUIEvent("scalechange", true, true, window, 0);
            event.scale = evt.scale;
            event.presetValue = evt.presetValue;
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("updateviewarea", function (evt) {
            var event = document.createEvent("UIEvents");
            event.initUIEvent("updateviewarea", true, true, window, 0);
            event.location = evt.location;
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("find", function (evt) {
            if (evt.source === window) {
              return;
            }
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("find" + evt.type, true, true, {
              query: evt.query,
              phraseSearch: evt.phraseSearch,
              caseSensitive: evt.caseSensitive,
              highlightAll: evt.highlightAll,
              findPrevious: evt.findPrevious,
            });
            window.dispatchEvent(event);
          });
          eventBus.on("attachmentsloaded", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("attachmentsloaded", true, true, {
              attachmentsCount: evt.attachmentsCount,
            });
            evt.source.container.dispatchEvent(event);
          });
          eventBus.on("sidebarviewchanged", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("sidebarviewchanged", true, true, {
              view: evt.view,
            });
            evt.source.outerContainer.dispatchEvent(event);
          });
          eventBus.on("pagemode", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("pagemode", true, true, { mode: evt.mode });
            evt.source.pdfViewer.container.dispatchEvent(event);
          });
          eventBus.on("namedaction", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("namedaction", true, true, {
              action: evt.action,
            });
            evt.source.pdfViewer.container.dispatchEvent(event);
          });
          eventBus.on("presentationmodechanged", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("presentationmodechanged", true, true, {
              active: evt.active,
              switchInProgress: evt.switchInProgress,
            });
            window.dispatchEvent(event);
          });
          eventBus.on("outlineloaded", function (evt) {
            var event = document.createEvent("CustomEvent");
            event.initCustomEvent("outlineloaded", true, true, {
              outlineCount: evt.outlineCount,
            });
            evt.source.container.dispatchEvent(event);
          });
        }
        var globalEventBus = null;
        function getGlobalEventBus() {
          var dispatchToDOM =
            arguments.length > 0 && arguments[0] !== undefined
              ? arguments[0]
              : false;

          if (!globalEventBus) {
            globalEventBus = new _ui_utils.EventBus({
              dispatchToDOM: dispatchToDOM,
            });
            if (!dispatchToDOM) {
              attachDOMEventsToEventBus(globalEventBus);
            }
          }
          return globalEventBus;
        }
        exports.attachDOMEventsToEventBus = attachDOMEventsToEventBus;
        exports.getGlobalEventBus = getGlobalEventBus;

        /***/
      },
      /* 10 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.DefaultTextLayerFactory = exports.TextLayerBuilder = undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _dom_events = __w_pdfjs_require__(9);

        var _pdfjsLib = __w_pdfjs_require__(2);

        var _ui_utils = __w_pdfjs_require__(3);

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

        var EXPAND_DIVS_TIMEOUT = 300;
        var MATCH_SCROLL_OFFSET_TOP = -50;
        var MATCH_SCROLL_OFFSET_LEFT = -400;

        var TextLayerBuilder = (function () {
          function TextLayerBuilder(_ref) {
            var textLayerDiv = _ref.textLayerDiv,
              eventBus = _ref.eventBus,
              pageIndex = _ref.pageIndex,
              viewport = _ref.viewport,
              _ref$findController = _ref.findController,
              findController =
                _ref$findController === undefined ? null : _ref$findController,
              _ref$enhanceTextSelec = _ref.enhanceTextSelection,
              enhanceTextSelection =
                _ref$enhanceTextSelec === undefined
                  ? false
                  : _ref$enhanceTextSelec;

            _classCallCheck(this, TextLayerBuilder);

            this.textLayerDiv = textLayerDiv;
            this.eventBus = eventBus || (0, _dom_events.getGlobalEventBus)();
            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._boundEvents = Object.create(null);
            this._bindEvents();
            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: this.textLayerDiv,
                  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) {}
                );
              },
            },
            {
              key: "cancel",
              value: function cancel() {
                if (this.textLayerRenderTask) {
                  this.textLayerRenderTask.cancel();
                  this.textLayerRenderTask = 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) {
                var i = 0;
                var iIndex = 0;
                var textContentItemsStr = this.textContentItemsStr;
                var end = textContentItemsStr.length - 1;
                var queryLen =
                  this.findController === null
                    ? 0
                    : this.findController.state.query.length;
                var ret = [];
                if (!matches) {
                  return ret;
                }
                for (var m = 0, len = matches.length; m < len; 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,
                  };
                  ret.push(match);
                }
                return ret;
              },
            },
            {
              key: "renderMatches",
              value: function renderMatches(matches) {
                if (matches.length === 0) {
                  return;
                }
                var textContentItemsStr = this.textContentItemsStr;
                var textDivs = this.textDivs;
                var prevEnd = null;
                var pageIdx = this.pageIdx;
                var isSelectedPage =
                  this.findController === null
                    ? false
                    : pageIdx === this.findController.selected.pageIdx;
                var selectedMatchIdx =
                  this.findController === null
                    ? -1
                    : this.findController.selected.matchIdx;
                var highlightAll =
                  this.findController === null
                    ? false
                    : this.findController.state.highlightAll;
                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 (this.findController) {
                    if (
                      this.findController.selected.matchIdx === i &&
                      this.findController.selected.pageIdx === pageIdx
                    ) {
                      var spot = {
                        top: MATCH_SCROLL_OFFSET_TOP,
                        left: MATCH_SCROLL_OFFSET_LEFT,
                      };
                      (0, _ui_utils.scrollIntoView)(
                        textDivs[begin.divIdx],
                        spot,
                        true
                      );
                    }
                  }
                  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 matches = this.matches;
                var textDivs = this.textDivs;
                var textContentItemsStr = this.textContentItemsStr;
                var clearedUntilDivIdx = -1;
                for (var i = 0, len = matches.length; i < len; 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 (
                  !this.findController ||
                  !this.findController.highlightMatches
                ) {
                  return;
                }
                var pageMatches = void 0,
                  pageMatchesLength = void 0;
                if (this.findController !== null) {
                  pageMatches =
                    this.findController.pageMatches[this.pageIdx] || null;
                  pageMatchesLength = this.findController.pageMatchesLength
                    ? this.findController.pageMatchesLength[this.pageIdx] ||
                      null
                    : null;
                }
                this.matches = this.convertMatches(
                  pageMatches,
                  pageMatchesLength
                );
                this.renderMatches(this.matches);
              },
            },
            {
              key: "_bindEvents",
              value: function _bindEvents() {
                var _this2 = this;

                var eventBus = this.eventBus,
                  _boundEvents = this._boundEvents;

                _boundEvents.pageCancelled = function (evt) {
                  if (evt.pageNumber !== _this2.pageNumber) {
                    return;
                  }
                  if (_this2.textLayerRenderTask) {
                    console.error(
                      "TextLayerBuilder._bindEvents: `this.cancel()` should " +
                        "have been called when the page was reset, or rendering cancelled."
                    );
                    return;
                  }
                  for (var name in _boundEvents) {
                    eventBus.off(name.toLowerCase(), _boundEvents[name]);
                    delete _boundEvents[name];
                  }
                };
                _boundEvents.updateTextLayerMatches = function (evt) {
                  if (
                    evt.pageIndex !== _this2.pageIdx &&
                    evt.pageIndex !== -1
                  ) {
                    return;
                  }
                  _this2.updateMatches();
                };
                eventBus.on("pagecancelled", _boundEvents.pageCancelled);
                eventBus.on(
                  "updatetextlayermatches",
                  _boundEvents.updateTextLayerMatches
                );
              },
            },
            {
              key: "_bindMouse",
              value: function _bindMouse() {
                var _this3 = this;

                var div = this.textLayerDiv;
                var expandDivsTimer = null;
                div.addEventListener("mousedown", function (evt) {
                  if (
                    _this3.enhanceTextSelection &&
                    _this3.textLayerRenderTask
                  ) {
                    _this3.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 (
                    _this3.enhanceTextSelection &&
                    _this3.textLayerRenderTask
                  ) {
                    expandDivsTimer = setTimeout(function () {
                      if (_this3.textLayerRenderTask) {
                        _this3.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;
        })();

        var DefaultTextLayerFactory = (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;

                return new TextLayerBuilder({
                  textLayerDiv: textLayerDiv,
                  pageIndex: pageIndex,
                  viewport: viewport,
                  enhanceTextSelection: enhanceTextSelection,
                });
              },
            },
          ]);

          return DefaultTextLayerFactory;
        })();

        exports.TextLayerBuilder = TextLayerBuilder;
        exports.DefaultTextLayerFactory = DefaultTextLayerFactory;

        /***/
      },
      /* 11 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.DownloadManager = undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _pdfjsLib = __w_pdfjs_require__(2);

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

        var DISABLE_CREATE_OBJECT_URL =
          _pdfjsLib.apiCompatibilityParams.disableCreateObjectURL || false;
        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 = (function () {
          function DownloadManager(_ref) {
            var _ref$disableCreateObj = _ref.disableCreateObjectURL,
              disableCreateObjectURL =
                _ref$disableCreateObj === undefined
                  ? DISABLE_CREATE_OBJECT_URL
                  : _ref$disableCreateObj;

            _classCallCheck(this, DownloadManager);

            this.disableCreateObjectURL = disableCreateObjectURL;
          }

          _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) {
                  return navigator.msSaveBlob(
                    new Blob([data], { type: contentType }),
                    filename
                  );
                }
                var blobUrl = (0, _pdfjsLib.createObjectURL)(
                  data,
                  contentType,
                  this.disableCreateObjectURL
                );
                _download(blobUrl, filename);
              },
            },
            {
              key: "download",
              value: function download(blob, url, filename) {
                if (navigator.msSaveBlob) {
                  if (!navigator.msSaveBlob(blob, filename)) {
                    this.downloadUrl(url, filename);
                  }
                  return;
                }
                if (this.disableCreateObjectURL) {
                  this.downloadUrl(url, filename);
                  return;
                }
                var blobUrl = _pdfjsLib.URL.createObjectURL(blob);
                _download(blobUrl, filename);
              },
            },
          ]);

          return DownloadManager;
        })();

        exports.DownloadManager = DownloadManager;

        /***/
      },
      /* 12 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.GenericL10n = undefined;

        var _regenerator = __w_pdfjs_require__(4);

        var _regenerator2 = _interopRequireDefault(_regenerator);

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        __w_pdfjs_require__(13);

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

        function _asyncToGenerator(fn) {
          return function () {
            var gen = fn.apply(this, arguments);
            return new Promise(function (resolve, reject) {
              function step(key, arg) {
                try {
                  var info = gen[key](arg);
                  var value = info.value;
                } catch (error) {
                  reject(error);
                  return;
                }
                if (info.done) {
                  resolve(value);
                } else {
                  return Promise.resolve(value).then(
                    function (value) {
                      step("next", value);
                    },
                    function (err) {
                      step("throw", err);
                    }
                  );
                }
              }
              return step("next");
            });
          };
        }

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

        var webL10n = document.webL10n;

        var GenericL10n = (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 _ref = _asyncToGenerator(
                  /*#__PURE__*/ _regenerator2.default.mark(function _callee() {
                    var l10n;
                    return _regenerator2.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 _ref.apply(this, arguments);
                }

                return getLanguage;
              })(),
            },
            {
              key: "getDirection",
              value: (function () {
                var _ref2 = _asyncToGenerator(
                  /*#__PURE__*/ _regenerator2.default.mark(function _callee2() {
                    var l10n;
                    return _regenerator2.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 _ref2.apply(this, arguments);
                }

                return getDirection;
              })(),
            },
            {
              key: "get",
              value: (function () {
                var _ref3 = _asyncToGenerator(
                  /*#__PURE__*/ _regenerator2.default.mark(function _callee3(
                    property,
                    args,
                    fallback
                  ) {
                    var l10n;
                    return _regenerator2.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 _ref3.apply(this, arguments);
                }

                return get;
              })(),
            },
            {
              key: "translate",
              value: (function () {
                var _ref4 = _asyncToGenerator(
                  /*#__PURE__*/ _regenerator2.default.mark(function _callee4(
                    element
                  ) {
                    var l10n;
                    return _regenerator2.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 _ref4.apply(this, arguments);
                }

                return translate;
              })(),
            },
          ]);

          return GenericL10n;
        })();

        exports.GenericL10n = GenericL10n;

        /***/
      },
      /* 13 */
      /***/ function (module, exports, __w_pdfjs_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 fireL10nReadyEvent(lang) {
            var evtObject = document.createEvent("Event");
            evtObject.initEvent("localized", true, false);
            evtObject.language = lang;
            document.dispatchEvent(evtObject);
          }
          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");
              }
              fireL10nReadyEvent(lang);
              gReadyState = "complete";
              return;
            }
            var onResourceLoaded = null;
            var gResourceCount = 0;
            onResourceLoaded = function onResourceLoaded() {
              gResourceCount++;
              if (gResourceCount >= langCount) {
                callback();
                fireL10nReadyEvent(lang);
                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);

        /***/
      },
      /* 14 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

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

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _pdfjsLib = __w_pdfjs_require__(2);

        var _pdf_find_utils = __w_pdfjs_require__(15);

        var _dom_events = __w_pdfjs_require__(9);

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

        var FindState = {
          FOUND: 0,
          NOT_FOUND: 1,
          WRAPPED: 2,
          PENDING: 3,
        };
        var FIND_TIMEOUT = 250;
        var CHARACTERS_TO_NORMALIZE = {
          "\u2018": "'",
          "\u2019": "'",
          "\u201A": "'",
          "\u201B": "'",
          "\u201C": '"',
          "\u201D": '"',
          "\u201E": '"',
          "\u201F": '"',
          "\xBC": "1/4",
          "\xBD": "1/2",
          "\xBE": "3/4",
        };

        var PDFFindController = (function () {
          function PDFFindController(_ref) {
            var linkService = _ref.linkService,
              _ref$eventBus = _ref.eventBus,
              eventBus =
                _ref$eventBus === undefined
                  ? (0, _dom_events.getGlobalEventBus)()
                  : _ref$eventBus;

            _classCallCheck(this, PDFFindController);

            this._linkService = linkService;
            this._eventBus = eventBus;
            this._reset();
            eventBus.on("findbarclose", this._onFindBarClose.bind(this));
            var replace = Object.keys(CHARACTERS_TO_NORMALIZE).join("");
            this._normalizationRegex = new RegExp("[" + replace + "]", "g");
          }

          _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;

                var pdfDocument = this._pdfDocument;
                if (this._state === null || cmd !== "findagain") {
                  this._dirtyMatch = true;
                }
                this._state = state;
                this._updateUIState(FindState.PENDING);
                this._firstPageCapability.promise.then(function () {
                  if (
                    !_this._pdfDocument ||
                    (pdfDocument && _this._pdfDocument !== pdfDocument)
                  ) {
                    return;
                  }
                  _this._extractText();
                  if (_this._findTimeout) {
                    clearTimeout(_this._findTimeout);
                    _this._findTimeout = null;
                  }
                  if (cmd === "find") {
                    _this._findTimeout = setTimeout(function () {
                      _this._nextMatch();
                      _this._findTimeout = null;
                    }, FIND_TIMEOUT);
                  } else {
                    _this._nextMatch();
                  }
                });
              },
            },
            {
              key: "_reset",
              value: function _reset() {
                this._highlightMatches = false;
                this._pdfDocument = null;
                this._pageMatches = [];
                this._pageMatchesLength = null;
                this._state = null;
                this._selected = {
                  pageIdx: -1,
                  matchIdx: -1,
                };
                this._offset = {
                  pageIdx: null,
                  matchIdx: null,
                };
                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: "_normalize",
              value: function _normalize(text) {
                return text.replace(this._normalizationRegex, function (ch) {
                  return CHARACTERS_TO_NORMALIZE[ch];
                });
              },
            },
            {
              key: "_prepareMatches",
              value: function _prepareMatches(
                matchesWithLength,
                matches,
                matchesLength
              ) {
                function isSubTerm(matchesWithLength, 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(matchesWithLength, 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,
                    });
                  }
                }
                if (!this._pageMatchesLength) {
                  this._pageMatchesLength = [];
                }
                this._pageMatchesLength[pageIndex] = [];
                this._pageMatches[pageIndex] = [];
                this._prepareMatches(
                  matchesWithLength,
                  this._pageMatches[pageIndex],
                  this._pageMatchesLength[pageIndex]
                );
              },
            },
            {
              key: "_calculateMatch",
              value: function _calculateMatch(pageIndex) {
                var pageContent = this._normalize(
                  this._pageContents[pageIndex]
                );
                var query = this._normalize(this._state.query);
                var _state = this._state,
                  caseSensitive = _state.caseSensitive,
                  entireWord = _state.entireWord,
                  phraseSearch = _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
                  );
                }
                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] = strBuf.join("");
                          extractTextCapability.resolve(i);
                        },
                        function (reason) {
                          console.error(
                            "Unable to get text content for page " + (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._selected.pageIdx === index) {
                  this._linkService.page = index + 1;
                }
                this._eventBus.dispatch("updatetextlayermatches", {
                  source: this,
                  pageIndex: index,
                });
              },
            },
            {
              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._resumePageIdx = null;
                  this._pageMatches.length = 0;
                  this._pageMatchesLength = null;
                  this._matchesCountTotal = 0;
                  for (var i = 0; i < numPages; i++) {
                    this._updatePage(i);
                    if (!(i in this._pendingFindMatches)) {
                      this._pendingFindMatches[i] = true;
                      this._extractTextPromises[i].then(function (pageIdx) {
                        delete _this3._pendingFindMatches[pageIdx];
                        _this3._calculateMatch(pageIdx);
                      });
                    }
                  }
                }
                if (this._state.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._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;
                    _this4._updateUIState(FindState.FOUND);
                  }
                  _this4._highlightMatches = false;
                  _this4._eventBus.dispatch("updatetextlayermatches", {
                    source: _this4,
                    pageIndex: -1,
                  });
                });
              },
            },
            {
              key: "_requestMatchesCount",
              value: function _requestMatchesCount() {
                var _selected = this._selected,
                  pageIdx = _selected.pageIdx,
                  matchIdx = _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(),
                });
              },
            },
            {
              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;
              },
            },
          ]);

          return PDFFindController;
        })();

        exports.FindState = FindState;
        exports.PDFFindController = PDFFindController;

        /***/
      },
      /* 15 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        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,
        };
        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;
        }
        exports.CharacterType = CharacterType;
        exports.getCharacterType = getCharacterType;

        /***/
      },
      /* 16 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.isDestArraysEqual =
          exports.isDestHashesEqual =
          exports.PDFHistory =
            undefined;

        var _typeof =
          typeof Symbol === "function" && typeof Symbol.iterator === "symbol"
            ? function (obj) {
                return typeof obj;
              }
            : function (obj) {
                return obj &&
                  typeof Symbol === "function" &&
                  obj.constructor === Symbol &&
                  obj !== Symbol.prototype
                  ? "symbol"
                  : typeof obj;
              };

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _ui_utils = __w_pdfjs_require__(3);

        var _dom_events = __w_pdfjs_require__(9);

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

        var HASH_CHANGE_TIMEOUT = 1000;
        var POSITION_UPDATED_THRESHOLD = 50;
        var UPDATE_VIEWAREA_TIMEOUT = 1000;
        function getCurrentHash() {
          return document.location.hash;
        }
        function parseCurrentHash(linkService) {
          var hash = unescape(getCurrentHash()).substring(1);
          var params = (0, _ui_utils.parseQueryString)(hash);
          var page = params.page | 0;
          if (
            !(
              Number.isInteger(page) &&
              page > 0 &&
              page <= linkService.pagesCount
            )
          ) {
            page = null;
          }
          return {
            hash: hash,
            page: page,
            rotation: linkService.rotation,
          };
        }

        var PDFHistory = (function () {
          function PDFHistory(_ref) {
            var _this = this;

            var linkService = _ref.linkService,
              eventBus = _ref.eventBus;

            _classCallCheck(this, PDFHistory);

            this.linkService = linkService;
            this.eventBus = eventBus || (0, _dom_events.getGlobalEventBus)();
            this.initialized = false;
            this.initialBookmark = null;
            this.initialRotation = null;
            this._boundEvents = Object.create(null);
            this._isViewerInPresentationMode = false;
            this._isPagesLoaded = false;
            this.eventBus.on("presentationmodechanged", function (evt) {
              _this._isViewerInPresentationMode =
                evt.active || evt.switchInProgress;
            });
            this.eventBus.on("pagesloaded", function (evt) {
              _this._isPagesLoaded = !!evt.pagesCount;
            });
          }

          _createClass(PDFHistory, [
            {
              key: "initialize",
              value: function initialize(fingerprint) {
                var resetHistory =
                  arguments.length > 1 && arguments[1] !== undefined
                    ? arguments[1]
                    : false;

                if (!fingerprint || typeof fingerprint !== "string") {
                  console.error(
                    'PDFHistory.initialize: The "fingerprint" must be a non-empty string.'
                  );
                  return;
                }
                var reInitialized =
                  this.initialized && this.fingerprint !== fingerprint;
                this.fingerprint = fingerprint;
                if (!this.initialized) {
                  this._bindEvents();
                }
                var state = window.history.state;
                this.initialized = true;
                this.initialBookmark = null;
                this.initialRotation = null;
                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) || resetHistory) {
                  var _parseCurrentHash = parseCurrentHash(this.linkService),
                    hash = _parseCurrentHash.hash,
                    page = _parseCurrentHash.page,
                    rotation = _parseCurrentHash.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=" + destination.page;
                }
              },
            },
            {
              key: "push",
              value: function push(_ref2) {
                var _this2 = this;

                var namedDest = _ref2.namedDest,
                  explicitDest = _ref2.explicitDest,
                  pageNumber = _ref2.pageNumber;

                if (!this.initialized) {
                  return;
                }
                if (
                  (namedDest && typeof namedDest !== "string") ||
                  !Array.isArray(explicitDest) ||
                  !(
                    Number.isInteger(pageNumber) &&
                    pageNumber > 0 &&
                    pageNumber <= this.linkService.pagesCount
                  )
                ) {
                  console.error("PDFHistory.push: Invalid parameters.");
                  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);
                if (shouldReplace) {
                  window.history.replaceState(newState, "");
                } else {
                  this._maxUid = this._uid;
                  window.history.pushState(newState, "");
                }
              },
            },
            {
              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) {
                if (!state) {
                  return false;
                }
                if (state.fingerprint !== this.fingerprint) {
                  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: "_updateViewarea",
              value: function _updateViewarea(_ref3) {
                var _this3 = this;

                var location = _ref3.location;

                if (this._updateViewareaTimeout) {
                  clearTimeout(this._updateViewareaTimeout);
                  this._updateViewareaTimeout = null;
                }
                this._position = {
                  hash: this._isViewerInPresentationMode
                    ? "page=" + location.pageNumber
                    : location.pdfOpenParams.substring(1),
                  page: this.linkService.page,
                  first: location.pageNumber,
                  rotation: location.rotation,
                };
                if (this._popStateInProgress) {
                  return;
                }
                if (
                  POSITION_UPDATED_THRESHOLD > 0 &&
                  this._isPagesLoaded &&
                  this._destination &&
                  !this._destination.page
                ) {
                  this._numPositionUpdates++;
                }
                if (UPDATE_VIEWAREA_TIMEOUT > 0) {
                  this._updateViewareaTimeout = setTimeout(function () {
                    if (!_this3._popStateInProgress) {
                      _this3._tryPushCurrentPosition(true);
                    }
                    _this3._updateViewareaTimeout = null;
                  }, UPDATE_VIEWAREA_TIMEOUT);
                }
              },
            },
            {
              key: "_popState",
              value: function _popState(_ref4) {
                var _this4 = this;

                var state = _ref4.state;

                var newHash = getCurrentHash(),
                  hashChanged = this._currentHash !== newHash;
                this._currentHash = newHash;
                if (!state || false) {
                  this._uid++;

                  var _parseCurrentHash2 = parseCurrentHash(this.linkService),
                    hash = _parseCurrentHash2.hash,
                    page = _parseCurrentHash2.page,
                    rotation = _parseCurrentHash2.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: "_bindEvents",
              value: function _bindEvents() {
                var _this5 = this;

                var _boundEvents = this._boundEvents,
                  eventBus = this.eventBus;

                _boundEvents.updateViewarea = this._updateViewarea.bind(this);
                _boundEvents.popState = this._popState.bind(this);
                _boundEvents.pageHide = function (evt) {
                  if (!_this5._destination || _this5._destination.temporary) {
                    _this5._tryPushCurrentPosition();
                  }
                };
                eventBus.on("updateviewarea", _boundEvents.updateViewarea);
                window.addEventListener("popstate", _boundEvents.popState);
                window.addEventListener("pagehide", _boundEvents.pageHide);
              },
            },
            {
              key: "popStateInProgress",
              get: function get() {
                return (
                  this.initialized &&
                  (this._popStateInProgress || this._blockHashChange > 0)
                );
              },
            },
          ]);

          return 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 === "undefined" ? "undefined" : _typeof(first)) !==
              (typeof second === "undefined" ? "undefined" : _typeof(second))
            ) {
              return false;
            }
            if (Array.isArray(first) || Array.isArray(second)) {
              return false;
            }
            if (
              first !== null &&
              (typeof first === "undefined" ? "undefined" : _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;
        }
        exports.PDFHistory = PDFHistory;
        exports.isDestHashesEqual = isDestHashesEqual;
        exports.isDestArraysEqual = isDestArraysEqual;

        /***/
      },
      /* 17 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.PDFPageView = undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdfjsLib = __w_pdfjs_require__(2);

        var _dom_events = __w_pdfjs_require__(9);

        var _pdf_rendering_queue = __w_pdfjs_require__(18);

        var _viewer_compatibility = __w_pdfjs_require__(19);

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

        var MAX_CANVAS_PIXELS =
          _viewer_compatibility.viewerCompatibilityParams.maxCanvasPixels ||
          16777216;

        var PDFPageView = (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.hasRestrictedScaling = false;
            this.textLayerMode = Number.isInteger(options.textLayerMode)
              ? options.textLayerMode
              : _ui_utils.TextLayerMode.ENABLE;
            this.imageResourcesPath = options.imageResourcesPath || "";
            this.renderInteractiveForms =
              options.renderInteractiveForms || false;
            this.useOnlyCssZoom = options.useOnlyCssZoom || false;
            this.maxCanvasPixels = options.maxCanvasPixels || MAX_CANVAS_PIXELS;
            this.eventBus =
              options.eventBus || (0, _dom_events.getGlobalEventBus)();
            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.onBeforeDraw = null;
            this.onAfterDraw = null;
            this.annotationLayer = null;
            this.textLayer = null;
            this.zoomLayer = null;
            this._previousRotation = 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;
            this.container = container;
            this._setDimensions();

            container.appendChild(div);

            container.style.setProperty(
              "--scale-factor",
              this.scale * _ui_utils.CSS_UNITS
            );
          }

          _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(
                  this.scale * _ui_utils.CSS_UNITS,
                  totalRotation
                );
                this.stats = pdfPage.stats;
                this._setDimensions();
                this.reset();
              },
            },
            {
              key: "_setDimensions",
              value: function _setDimensions() {
                var viewport = this.viewport;

                if (this.pdfPage) {
                  if (this._previousRotation === viewport.rotation) {
                    return;
                  }
                  this._previousRotation = viewport.rotation;
                }

                (0, _pdfjsLib.setLayerDimensions)(
                  this.div,
                  viewport,
                  true,
                  false
                );
              },
            },
            {
              key: "destroy",
              value: function destroy() {
                this.reset();
                if (this.pdfPage) {
                  this.pdfPage.cleanup();
                }
              },
            },
            {
              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);
                var div = this.div;

                (0, _pdfjsLib.setLayerDimensions)(
                  div,
                  this.viewport,
                  true,
                  false
                );

                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) {
                this.scale = scale || this.scale;
                if (typeof rotation !== "undefined") {
                  this.rotation = rotation;
                }
                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,
                  });
                  return;
                }
                var isScalingRestricted = false;
                this._setDimensions();
                this.container.style.setProperty(
                  "--scale-factor",
                  this.scale * _ui_utils.CSS_UNITS
                );
                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,
                    });
                    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;

                var renderingState = this.renderingState;
                if (this.paintTask) {
                  this.paintTask.cancel();
                  this.paintTask = null;
                }
                this.renderingState =
                  _pdf_rendering_queue.RenderingStates.INITIAL;
                this.resume = null;
                if (this.textLayer) {
                  this.textLayer.cancel();
                  this.textLayer = null;
                }
                if (!keepAnnotations && this.annotationLayer) {
                  this.annotationLayer.cancel();
                  this.annotationLayer = null;
                }
                if (
                  renderingState !==
                  _pdf_rendering_queue.RenderingStates.INITIAL
                ) {
                  this.eventBus.dispatch("pagecancelled", {
                    source: this,
                    pageNumber: this.id,
                    renderingState: renderingState,
                  });
                }
              },
            },
            {
              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 = Math.floor(width) + "px";
                target.style.height = Math.floor(height) + "px";

                // target.parentNode.style.width =
                //   div.style.width = `calc(var(--scale-factor) * ${pageWidth}px)`;
                // target.parentNode.style.height =
                //   div.style.height = `calc(var(--scale-factor) * ${pageHeight}px)`;

                (0, _pdfjsLib.setLayerDimensions)(
                  target.parentNode,
                  this.viewport,
                  true,
                  false
                );
                (0, _pdfjsLib.setLayerDimensions)(
                  div,
                  this.viewport,
                  true,
                  false
                );

                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 = void 0,
                    transY = void 0;
                  switch (textAbsRotation) {
                    case 0:
                      transX = transY = 0;
                      break;
                    case 90:
                      transX = 0;
                      transY = "-" + textLayerDiv.style.height;
                      break;
                    case 180:
                      transX = "-" + textLayerDiv.style.width;
                      transY = "-" + textLayerDiv.style.height;
                      break;
                    case 270:
                      transX = "-" + textLayerDiv.style.width;
                      transY = 0;
                      break;
                    default:
                      console.error("Bad rotation value.");
                      break;
                  }
                  textLayerDiv.style.transform =
                    "rotate(" +
                    textAbsRotation +
                    "deg) " +
                    "scale(" +
                    scale +
                    ", " +
                    scale +
                    ") " +
                    "translate(" +
                    transX +
                    ", " +
                    transY +
                    ")";
                  textLayerDiv.style.transformOrigin = "0% 0%";
                }
                if (redrawAnnotations && this.annotationLayer) {
                  this.annotationLayer.render(this.viewport, "display");
                }
              },
            },
            {
              key: "getPagePoint",
              value: function getPagePoint(x, y) {
                return this.viewport.convertToPdfPoint(x, y);
              },
            },
            {
              key: "updateAnnotationLayer",
              value: function updateAnnotationLayer(ele) {
                this.annotationLayer.addRender(ele);
              },
            },

            {
              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();
                }
                if (!this.pdfPage) {
                  this.renderingState =
                    _pdf_rendering_queue.RenderingStates.FINISHED;
                  return Promise.reject(new Error("Page is not loaded"));
                }
                this.renderingState =
                  _pdf_rendering_queue.RenderingStates.RUNNING;
                var pdfPage = this.pdfPage;
                var div = this.div;
                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.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 = function finishPaintTask(error) {
                  if (paintTask === _this.paintTask) {
                    _this.paintTask = null;
                  }
                  if (error instanceof _pdfjsLib.RenderingCancelledException) {
                    _this.error = null;
                    return Promise.resolve(undefined);
                  }
                  _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;
                  if (_this.onAfterDraw) {
                    _this.onAfterDraw();
                  }
                  _this.eventBus.dispatch("pagerendered", {
                    source: _this,
                    pageNumber: _this.id,
                    cssTransform: false,
                  });
                  if (error) {
                    return Promise.reject(error);
                  }
                  return Promise.resolve(undefined);
                };
                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.imageResourcesPath,
                        this.renderInteractiveForms,
                        this.l10n
                      );
                  }
                  this.annotationLayer.render(this.viewport, "display");
                }
                div.setAttribute("data-loaded", true);
                if (this.onBeforeDraw) {
                  this.onBeforeDraw();
                }
                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");
                canvas.id = this.renderingId;
                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,
                };
                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 " + _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;

        /***/
      },
      /* 18 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

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

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

        var PDFRenderingQueue = (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 false;
                }
                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;
                    var continueRendering = function continueRendering() {
                      _this.renderHighestPriority();
                    };
                    view.draw().then(continueRendering, continueRendering);
                    break;
                }
                return true;
              },
            },
          ]);

          return PDFRenderingQueue;
        })();

        exports.RenderingStates = RenderingStates;
        exports.PDFRenderingQueue = PDFRenderingQueue;

        /***/
      },
      /* 19 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        var compatibilityParams = Object.create(null);
        {
          var userAgent =
            (typeof navigator !== "undefined" && navigator.userAgent) || "";
          var isAndroid = /Android/.test(userAgent);
          var isIOS = /\b(iPad|iPhone|iPod)(?=;)/.test(userAgent);
          (function checkCanvasSizeLimitation() {
            if (isIOS || isAndroid) {
              compatibilityParams.maxCanvasPixels = 5242880;
            }
          })();
        }
        exports.viewerCompatibilityParams = Object.freeze(compatibilityParams);

        /***/
      },
      /* 20 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.PDFSinglePageViewer = undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _get = function get(object, property, receiver) {
          if (object === null) object = Function.prototype;
          var desc = Object.getOwnPropertyDescriptor(object, property);
          if (desc === undefined) {
            var parent = Object.getPrototypeOf(object);
            if (parent === null) {
              return undefined;
            } else {
              return get(parent, property, receiver);
            }
          } else if ("value" in desc) {
            return desc.value;
          } else {
            var getter = desc.get;
            if (getter === undefined) {
              return undefined;
            }
            return getter.call(receiver);
          }
        };

        var _base_viewer = __w_pdfjs_require__(21);

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdfjsLib = __w_pdfjs_require__(2);

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

        function _possibleConstructorReturn(self, call) {
          if (!self) {
            throw new ReferenceError(
              "this hasn't been initialised - super() hasn't been called"
            );
          }
          return call &&
            (typeof call === "object" || typeof call === "function")
            ? call
            : self;
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError(
              "Super expression must either be null or a function, not " +
                typeof superClass
            );
          }
          subClass.prototype = Object.create(
            superClass && superClass.prototype,
            {
              constructor: {
                value: subClass,
                enumerable: false,
                writable: true,
                configurable: true,
              },
            }
          );
          if (superClass)
            Object.setPrototypeOf
              ? Object.setPrototypeOf(subClass, superClass)
              : (subClass.__proto__ = superClass);
        }

        var PDFSinglePageViewer = (function (_BaseViewer) {
          _inherits(PDFSinglePageViewer, _BaseViewer);

          function PDFSinglePageViewer(options) {
            _classCallCheck(this, PDFSinglePageViewer);

            var _this = _possibleConstructorReturn(
              this,
              (
                PDFSinglePageViewer.__proto__ ||
                Object.getPrototypeOf(PDFSinglePageViewer)
              ).call(this, options)
            );

            _this.eventBus.on("pagesinit", function (evt) {
              _this._ensurePageViewVisible();
            });
            return _this;
          }

          _createClass(PDFSinglePageViewer, [
            {
              key: "_resetView",
              value: function _resetView() {
                _get(
                  PDFSinglePageViewer.prototype.__proto__ ||
                    Object.getPrototypeOf(PDFSinglePageViewer.prototype),
                  "_resetView",
                  this
                ).call(this);
                this._previousPageNumber = 1;
                this._shadowViewer = document.createDocumentFragment();
              },
            },
            {
              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(
                  PDFSinglePageViewer.prototype.__proto__ ||
                    Object.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 === undefined ? null : _ref$pageSpot,
                  _ref$pageNumber = _ref.pageNumber,
                  pageNumber =
                    _ref$pageNumber === undefined ? null : _ref$pageNumber;

                if (pageNumber) {
                  this._setCurrentPageNumber(pageNumber);
                }
                var scrolledDown =
                  this._currentPageNumber >= this._previousPageNumber;
                var previousLocation = this._location;
                this._ensurePageViewVisible();
                (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
                this._updateScrollDown = function () {
                  _this2.scroll.down = scrolledDown;
                  delete _this2._updateScrollDown;
                };
                setTimeout(function () {
                  if (_this2._location === previousLocation) {
                    if (_this2._updateScrollDown) {
                      _this2._updateScrollDown();
                    }
                    _this2.update();
                  }
                }, 0);
              },
            },
            {
              key: "_getVisiblePages",
              value: function _getVisiblePages() {
                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: "update",
              value: function update() {
                var visible = this._getVisiblePages();
                var visiblePages = visible.views,
                  numVisiblePages = visiblePages.length;
                if (numVisiblePages === 0) {
                  return;
                }
                this._resizeBuffer(numVisiblePages);
                this.renderingQueue.renderHighestPriority(visible);
                this._updateLocation(visible.first);
                this.eventBus.dispatch("updateviewarea", {
                  source: this,
                  location: this._location,
                });
              },
            },
            {
              key: "_updateScrollMode",
              value: function _updateScrollMode() {},
            },
            {
              key: "_updateSpreadMode",
              value: function _updateSpreadMode() {},
            },
            {
              key: "_setDocumentViewerElement",
              get: function get() {
                return (0, _pdfjsLib.shadow)(
                  this,
                  "_setDocumentViewerElement",
                  this._shadowViewer
                );
              },
            },
            {
              key: "_isScrollModeHorizontal",
              get: function get() {
                return (0, _pdfjsLib.shadow)(
                  this,
                  "_isScrollModeHorizontal",
                  false
                );
              },
            },
          ]);

          return PDFSinglePageViewer;
        })(_base_viewer.BaseViewer);

        exports.PDFSinglePageViewer = PDFSinglePageViewer;

        /***/
      },
      /* 21 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.SpreadMode =
          exports.ScrollMode =
          exports.BaseViewer =
            undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdf_rendering_queue = __w_pdfjs_require__(18);

        var _annotation_layer_builder = __w_pdfjs_require__(1);

        var _pdfjsLib = __w_pdfjs_require__(2);

        var _dom_events = __w_pdfjs_require__(9);

        var _pdf_page_view = __w_pdfjs_require__(17);

        var _pdf_link_service = __w_pdfjs_require__(8);

        var _text_layer_builder = __w_pdfjs_require__(10);

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

        var DEFAULT_CACHE_SIZE = 10;
        var ScrollMode = {
          VERTICAL: 0,
          HORIZONTAL: 1,
          WRAPPED: 2,
        };
        var SpreadMode = {
          NONE: 0,
          ODD: 1,
          EVEN: 2,
        };
        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 = (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;
            this.eventBus =
              options.eventBus || (0, _dom_events.getGlobalEventBus)();
            this.linkService =
              options.linkService || new _pdf_link_service.SimpleLinkService();
            this.downloadManager = options.downloadManager || null;
            this.findController = options.findController || null;
            this.removePageBorders = options.removePageBorders || false;
            this.textLayerMode = Number.isInteger(options.textLayerMode)
              ? options.textLayerMode
              : _ui_utils.TextLayerMode.ENABLE;
            this.imageResourcesPath = options.imageResourcesPath || "";
            this.renderInteractiveForms =
              options.renderInteractiveForms || false;
            this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
            this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
            this.enableWebGL = options.enableWebGL || false;
            this.useOnlyCssZoom = options.useOnlyCssZoom || false;
            this.maxCanvasPixels = options.maxCanvasPixels;
            this.l10n = options.l10n || _ui_utils.NullL10n;
            this.defaultRenderingQueue = !options.renderingQueue;
            if (this.defaultRenderingQueue) {
              this.renderingQueue =
                new _pdf_rendering_queue.PDFRenderingQueue();
              this.renderingQueue.setViewer(this);
            } else {
              this.renderingQueue = options.renderingQueue;
            }
            this.scroll = (0, _ui_utils.watchScroll)(
              this.container,
              this._scrollUpdate.bind(this)
            );
            this.presentationModeState =
              _ui_utils.PresentationModeState.UNKNOWN;
            this._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;
                }
                if (!(0 < val && val <= this.pagesCount)) {
                  console.error(
                    this._name +
                      '._setCurrentPageNumber: "' +
                      val +
                      '" is out of bounds.'
                  );
                  return;
                }
                var arg = {
                  source: this,
                  pageNumber: val,
                  pageLabel: this._pageLabels && this._pageLabels[val - 1],
                };
                this._currentPageNumber = val;
                this.eventBus.dispatch("pagechanging", arg);
                this.eventBus.dispatch("pagechange", arg);
                if (resetCurrentPageView) {
                  this._resetCurrentPageView();
                }
              },
            },
            {
              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 pagesCapability = (0, _pdfjsLib.createPromiseCapability)();
                this.pagesPromise = pagesCapability.promise;
                pagesCapability.promise.then(function () {
                  _this2._pageViewsReady = true;
                  _this2.eventBus.dispatch("pagesloaded", {
                    source: _this2,
                    pagesCount: pagesCount,
                  });
                });
                var isOnePageRenderedResolved = false;
                var onePageRenderedCapability = (0,
                _pdfjsLib.createPromiseCapability)();
                this.onePageRendered = onePageRenderedCapability.promise;
                var bindOnAfterAndBeforeDraw =
                  function bindOnAfterAndBeforeDraw(pageView) {
                    pageView.onBeforeDraw = function () {
                      _this2._buffer.push(pageView);
                    };
                    pageView.onAfterDraw = function () {
                      if (!isOnePageRenderedResolved) {
                        isOnePageRenderedResolved = true;
                        onePageRenderedCapability.resolve();
                      }
                    };
                  };
                var firstPagePromise = pdfDocument.getPage(1);
                this.firstPagePromise = firstPagePromise;
                firstPagePromise
                  .then(function (pdfPage) {
                    var scale = _this2.currentScale;
                    var viewport = pdfPage.getViewport(
                      scale * _ui_utils.CSS_UNITS
                    );

                    _this2.viewer.style.setProperty(
                      "--scale-factor",
                      viewport.scale
                    );

                    for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
                      var textLayerFactory = null;
                      if (
                        _this2.textLayerMode !== _ui_utils.TextLayerMode.DISABLE
                      ) {
                        textLayerFactory = _this2;
                      }
                      var pageView = new _pdf_page_view.PDFPageView({
                        container: _this2._setDocumentViewerElement,
                        eventBus: _this2.eventBus,
                        id: pageNum,
                        scale: scale,
                        defaultViewport: viewport.clone(),
                        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,
                      });
                      bindOnAfterAndBeforeDraw(pageView);
                      _this2._pages.push(pageView);
                    }
                    if (_this2._spreadMode !== SpreadMode.NONE) {
                      _this2._updateSpreadMode();
                    }
                    onePageRenderedCapability.promise.then(function () {
                      if (pdfDocument.loadingParams["disableAutoFetch"]) {
                        pagesCapability.resolve();
                        return;
                      }
                      var getPagesLeft = pagesCount;

                      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) {
                              pagesCapability.resolve();
                            }
                          },
                          function (reason) {
                            console.error(
                              "Unable to get page " +
                                _pageNum +
                                " to initialize viewer",
                              reason
                            );
                            if (--getPagesLeft === 0) {
                              pagesCapability.resolve();
                            }
                          }
                        );
                      };

                      for (
                        var _pageNum = 1;
                        _pageNum <= pagesCount;
                        ++_pageNum
                      ) {
                        _loop(_pageNum);
                      }
                    });
                    _this2.eventBus.dispatch("pagesinit", { source: _this2 });
                    if (_this2.findController) {
                      _this2.findController.setDocument(pdfDocument);
                    }
                    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(
                    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._pagesRequests = [];
                this._pageViewsReady = false;
                this._scrollMode = ScrollMode.VERTICAL;
                this._spreadMode = SpreadMode.NONE;
                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 === undefined ? null : _ref$pageSpot,
                  _ref$pageNumber = _ref.pageNumber,
                  pageNumber =
                    _ref$pageNumber === undefined ? null : _ref$pageNumber;

                throw new Error("Not implemented: _scrollIntoView");
              },
            },
            {
              key: "_setScaleDispatchEvent",
              value: function _setScaleDispatchEvent(newScale, newValue) {
                var preset =
                  arguments.length > 2 && arguments[2] !== undefined
                    ? arguments[2]
                    : false;

                var arg = {
                  source: this,
                  scale: newScale,
                  presetValue: preset ? newValue : undefined,
                };
                this.eventBus.dispatch("scalechanging", arg);
                this.eventBus.dispatch("scalechange", arg);
              },
            },
            {
              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.viewer.style.setProperty(
                  "--scale-factor",
                  newScale * _ui_utils.CSS_UNITS
                );
                this._currentScaleValue = newValue.toString();
                if (isSameScale(this._currentScale, newScale)) {
                  if (preset) {
                    this._setScaleDispatchEvent(newScale, newValue, true);
                  }
                  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 = void 0;
                  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._setScaleDispatchEvent(newScale, newValue, preset);
                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(
                        this._name +
                          '._setScale: "' +
                          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(params) {
                if (!this.pdfDocument) {
                  return;
                }
                var pageNumber = params.pageNumber || 0;
                var dest = params.destArray || null;
                var allowNegativeOffset = params.allowNegativeOffset || false;
                if (this.isInPresentationMode || !dest) {
                  this._setCurrentPageNumber(pageNumber, true);
                  return;
                }
                var pageView = this._pages[pageNumber - 1];
                if (!pageView) {
                  console.error(
                    this._name +
                      '.scrollPageIntoView: Invalid "pageNumber" parameter.'
                  );
                  return;
                }
                var x = 0,
                  y = 0;
                var width = 0,
                  height = 0,
                  widthScale = void 0,
                  heightScale = void 0;
                var changeOrientation =
                  pageView.rotation % 180 === 0 ? false : true;
                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 (dest[1].name) {
                  case "XYZ":
                    x = dest[2];
                    y = dest[3];
                    scale = dest[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 = dest[2];
                    scale = "page-width";
                    if (y === null && this._location) {
                      x = this._location.left;
                      y = this._location.top;
                    }
                    break;
                  case "FitV":
                  case "FitBV":
                    x = dest[2];
                    width = pageWidth;
                    height = pageHeight;
                    scale = "page-height";
                    break;
                  case "FitR":
                    x = dest[2];
                    y = dest[3];
                    width = dest[4] - x;
                    height = dest[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(
                      this._name +
                        '.scrollPageIntoView: "' +
                        dest[1].name +
                        '" ' +
                        "is not a valid destination type."
                    );
                    return;
                }
                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" && !dest[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: "_resizeBuffer",
              value: function _resizeBuffer(numVisiblePages, visiblePages) {
                var suggestedCacheSize = Math.max(
                  DEFAULT_CACHE_SIZE,
                  2 * numVisiblePages + 1
                );
                this._buffer.resize(suggestedCacheSize, visiblePages);
              },
            },
            {
              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: "update",
              value: function update() {
                throw new Error("Not implemented: update");
              },
            },
            {
              key: "containsElement",
              value: function containsElement(element) {
                return this.container.contains(element);
              },
            },
            {
              key: "focus",
              value: function focus() {
                this.container.focus();
              },
            },
            {
              key: "_getVisiblePages",
              value: function _getVisiblePages() {
                throw new Error("Not implemented: _getVisiblePages");
              },
            },
            {
              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);
                }
                var pageNumber = pageView.id;
                if (this._pagesRequests[pageNumber]) {
                  return this._pagesRequests[pageNumber];
                }
                var promise = this.pdfDocument
                  .getPage(pageNumber)
                  .then(function (pdfPage) {
                    if (!pageView.pdfPage) {
                      pageView.setPdfPage(pdfPage);
                    }
                    _this3._pagesRequests[pageNumber] = null;
                    return pdfPage;
                  })
                  .catch(function (reason) {
                    console.error("Unable to get page for page view", reason);
                    _this3._pagesRequests[pageNumber] = null;
                  });
                this._pagesRequests[pageNumber] = 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;

                return new _text_layer_builder.TextLayerBuilder({
                  textLayerDiv: textLayerDiv,
                  eventBus: this.eventBus,
                  pageIndex: pageIndex,
                  viewport: viewport,
                  findController: this.isInPresentationMode
                    ? null
                    : this.findController,
                  enhanceTextSelection: this.isInPresentationMode
                    ? false
                    : enhanceTextSelection,
                });
              },
            },
            {
              key: "createAnnotationLayerBuilder",
              value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
                var imageResourcesPath =
                  arguments.length > 2 && arguments[2] !== undefined
                    ? arguments[2]
                    : "";
                var renderInteractiveForms =
                  arguments.length > 3 && arguments[3] !== undefined
                    ? arguments[3]
                    : false;
                var l10n =
                  arguments.length > 4 && arguments[4] !== undefined
                    ? arguments[4]
                    : _ui_utils.NullL10n;

                return new _annotation_layer_builder.AnnotationLayerBuilder({
                  pageDiv: pageDiv,
                  pdfPage: pdfPage,
                  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(1);
                  return {
                    width: viewport.width,
                    height: viewport.height,
                    rotation: viewport.rotation,
                  };
                });
                if (!this.enablePrintAutoRotate) {
                  return pagesOverview;
                }
                var isFirstPagePortrait = (0, _ui_utils.isPortraitOrientation)(
                  pagesOverview[0]
                );
                return pagesOverview.map(function (size) {
                  if (
                    isFirstPagePortrait ===
                    (0, _ui_utils.isPortraitOrientation)(size)
                  ) {
                    return size;
                  }
                  return {
                    width: size.height,
                    height: size.width,
                    rotation: (size.rotation + 90) % 360,
                  };
                });
              },
            },
            {
              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 === ScrollMode.HORIZONTAL
                );
                viewer.classList.toggle(
                  "scrollWrapped",
                  scrollMode === ScrollMode.WRAPPED
                );
                if (!this.pdfDocument || !pageNumber) {
                  return;
                }
                if (this._currentScaleValue && isNaN(this._currentScaleValue)) {
                  this._setScale(this._currentScaleValue, true);
                }
                this.scrollPageIntoView({ pageNumber: pageNumber });
                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 === 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.scrollPageIntoView({ pageNumber: pageNumber });
                this.update();
              },
            },
            {
              key: "pagesCount",
              get: function get() {
                return this._pages.length;
              },
            },
            {
              key: "pageViewsReady",
              get: function get() {
                return this._pageViewsReady;
              },
            },
            {
              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;
                }
                this._setCurrentPageNumber(val, true);
              },
            },
            {
              key: "currentPageLabel",
              get: function get() {
                return (
                  this._pageLabels &&
                  this._pageLabels[this._currentPageNumber - 1]
                );
              },
              set: function set(val) {
                var pageNumber = val | 0;
                if (this._pageLabels) {
                  var i = this._pageLabels.indexOf(val);
                  if (i >= 0) {
                    pageNumber = i + 1;
                  }
                }
                this.currentPageNumber = pageNumber;
              },
            },
            {
              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;
                }
                rotation %= 360;
                if (rotation < 0) {
                  rotation += 360;
                }
                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: "_setDocumentViewerElement",
              get: function get() {
                throw new Error("Not implemented: _setDocumentViewerElement");
              },
            },
            {
              key: "_isScrollModeHorizontal",
              get: function get() {
                throw new Error("Not implemented: _isScrollModeHorizontal");
              },
            },
            {
              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: "scrollMode",
              get: function get() {
                return this._scrollMode;
              },
              set: function set(mode) {
                if (this._scrollMode === mode) {
                  return;
                }
                if (
                  !Number.isInteger(mode) ||
                  !Object.values(ScrollMode).includes(mode)
                ) {
                  throw new Error("Invalid scroll mode: " + 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 (
                  !Number.isInteger(mode) ||
                  !Object.values(SpreadMode).includes(mode)
                ) {
                  throw new Error("Invalid spread mode: " + mode);
                }
                this._spreadMode = mode;
                this.eventBus.dispatch("spreadmodechanged", {
                  source: this,
                  mode: mode,
                });
                this._updateSpreadMode(this._currentPageNumber);
              },
            },
          ]);

          return BaseViewer;
        })();

        exports.BaseViewer = BaseViewer;
        exports.ScrollMode = ScrollMode;
        exports.SpreadMode = SpreadMode;

        /***/
      },
      /* 22 */
      /***/ function (module, exports, __w_pdfjs_require__) {
        "use strict";

        Object.defineProperty(exports, "__esModule", {
          value: true,
        });
        exports.PDFViewer = undefined;

        var _createClass = (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);
            }
          }
          return function (Constructor, protoProps, staticProps) {
            if (protoProps) defineProperties(Constructor.prototype, protoProps);
            if (staticProps) defineProperties(Constructor, staticProps);
            return Constructor;
          };
        })();

        var _base_viewer = __w_pdfjs_require__(21);

        var _ui_utils = __w_pdfjs_require__(3);

        var _pdfjsLib = __w_pdfjs_require__(2);

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

        function _possibleConstructorReturn(self, call) {
          if (!self) {
            throw new ReferenceError(
              "this hasn't been initialised - super() hasn't been called"
            );
          }
          return call &&
            (typeof call === "object" || typeof call === "function")
            ? call
            : self;
        }

        function _inherits(subClass, superClass) {
          if (typeof superClass !== "function" && superClass !== null) {
            throw new TypeError(
              "Super expression must either be null or a function, not " +
                typeof superClass
            );
          }
          subClass.prototype = Object.create(
            superClass && superClass.prototype,
            {
              constructor: {
                value: subClass,
                enumerable: false,
                writable: true,
                configurable: true,
              },
            }
          );
          if (superClass)
            Object.setPrototypeOf
              ? Object.setPrototypeOf(subClass, superClass)
              : (subClass.__proto__ = superClass);
        }

        var PDFViewer = (function (_BaseViewer) {
          _inherits(PDFViewer, _BaseViewer);

          function PDFViewer() {
            _classCallCheck(this, PDFViewer);

            return _possibleConstructorReturn(
              this,
              (PDFViewer.__proto__ || Object.getPrototypeOf(PDFViewer)).apply(
                this,
                arguments
              )
            );
          }

          _createClass(PDFViewer, [
            {
              key: "_scrollIntoView",
              value: function _scrollIntoView(_ref) {
                var pageDiv = _ref.pageDiv,
                  _ref$pageSpot = _ref.pageSpot,
                  pageSpot = _ref$pageSpot === undefined ? null : _ref$pageSpot;

                if (!pageSpot && !this.isInPresentationMode) {
                  var left = pageDiv.offsetLeft + pageDiv.clientLeft;
                  var right = left + pageDiv.clientWidth;
                  var _container = this.container,
                    scrollLeft = _container.scrollLeft,
                    clientWidth = _container.clientWidth;

                  if (
                    this._scrollMode === _base_viewer.ScrollMode.HORIZONTAL ||
                    left < scrollLeft ||
                    right > scrollLeft + clientWidth
                  ) {
                    pageSpot = {
                      left: 0,
                      top: 0,
                    };
                  }
                }
                (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
              },
            },
            {
              key: "_getVisiblePages",
              value: function _getVisiblePages() {
                if (!this.isInPresentationMode) {
                  return (0, _ui_utils.getVisibleElements)(
                    this.container,
                    this._pages,
                    true,
                    this._scrollMode === _base_viewer.ScrollMode.HORIZONTAL
                  );
                }
                var currentPage = this._pages[this._currentPageNumber - 1];
                var visible = [
                  {
                    id: currentPage.id,
                    view: currentPage,
                  },
                ];
                return {
                  first: currentPage,
                  last: currentPage,
                  views: visible,
                };
              },
            },
            {
              key: "update",
              value: function update() {
                var visible = this._getVisiblePages();
                var visiblePages = visible.views,
                  numVisiblePages = visiblePages.length;
                if (numVisiblePages === 0) {
                  return;
                }
                this._resizeBuffer(numVisiblePages, visiblePages);
                this.renderingQueue.renderHighestPriority(visible);
                var currentId = this._currentPageNumber;
                var stillFullyVisible = false;
                for (var i = 0; i < numVisiblePages; ++i) {
                  var page = visiblePages[i];
                  if (page.percent < 100) {
                    break;
                  }
                  if (page.id === currentId) {
                    stillFullyVisible = true;
                    break;
                  }
                }
                if (!stillFullyVisible) {
                  currentId = visiblePages[0].id;
                }
                if (!this.isInPresentationMode) {
                  this._setCurrentPageNumber(currentId);
                }
                this._updateLocation(visible.first);
                this.eventBus.dispatch("updateviewarea", {
                  source: this,
                  location: this._location,
                });
              },
            },
            {
              key: "_setDocumentViewerElement",
              get: function get() {
                return (0, _pdfjsLib.shadow)(
                  this,
                  "_setDocumentViewerElement",
                  this.viewer
                );
              },
            },
            {
              key: "_isScrollModeHorizontal",
              get: function get() {
                return this.isInPresentationMode
                  ? false
                  : this._scrollMode === _base_viewer.ScrollMode.HORIZONTAL;
              },
            },
          ]);

          return PDFViewer;
        })(_base_viewer.BaseViewer);

        exports.PDFViewer = PDFViewer;

        /***/
      },
      /******/
    ]
  );
});
//# sourceMappingURL=pdf_viewer.js.map
