pdfjs-dist/web/pdf_viewer.js

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2017 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.pdfjsDistWebPdfViewer = factory();
})(typeof self !== 'undefined' ? self : 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, {
/******/ 				configurable: false,
/******/ 				enumerable: true,
/******/ 				get: getter
/******/ 			});
/******/ 		}
/******/ 	};
/******/
/******/ 	// 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);
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/******/ 	__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 = 9);
/******/ })
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/* 0 */
/***/ (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;

/***/ }),
/* 1 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.waitOnEventOrTimeout = exports.WaitOnType = exports.localized = exports.animationStarted = exports.normalizeWheelEventDelta = exports.binarySearchFirstItem = exports.watchScroll = exports.scrollIntoView = exports.getOutputScale = exports.approximateFraction = exports.roundToDivide = exports.getVisibleElements = exports.parseQueryString = exports.noContextMenuHandler = exports.getPDFFileNameFromURL = exports.ProgressBar = exports.EventBus = exports.NullL10n = exports.mozL10n = exports.RendererType = exports.PresentationModeState = exports.cloneObj = exports.isFileSchema = 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 _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 _pdfjsLib = __w_pdfjs_require__(0);

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

var CSS_UNITS = 96.0 / 72.0;
var DEFAULT_SCALE_VALUE = 'auto';
var DEFAULT_SCALE = 1.0;
var MIN_SCALE = 0.10;
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'
};
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 = {
  getDirection: function getDirection() {
    return Promise.resolve('ltr');
  },
  get: function get(property, args, fallback) {
    return Promise.resolve(formatL10nValue(fallback, args));
  },
  translate: function translate(element) {
    return Promise.resolve();
  }
};
_pdfjsLib.PDFJS.disableFullscreen = _pdfjsLib.PDFJS.disableFullscreen === undefined ? false : _pdfjsLib.PDFJS.disableFullscreen;
_pdfjsLib.PDFJS.useOnlyCssZoom = _pdfjsLib.PDFJS.useOnlyCssZoom === undefined ? false : _pdfjsLib.PDFJS.useOnlyCssZoom;
_pdfjsLib.PDFJS.maxCanvasPixels = _pdfjsLib.PDFJS.maxCanvasPixels === undefined ? 16777216 : _pdfjsLib.PDFJS.maxCanvasPixels;
_pdfjsLib.PDFJS.disableHistory = _pdfjsLib.PDFJS.disableHistory === undefined ? false : _pdfjsLib.PDFJS.disableHistory;
_pdfjsLib.PDFJS.disableTextLayer = _pdfjsLib.PDFJS.disableTextLayer === undefined ? false : _pdfjsLib.PDFJS.disableTextLayer;
{
  _pdfjsLib.PDFJS.locale = _pdfjsLib.PDFJS.locale === undefined && typeof navigator !== 'undefined' ? navigator.language : _pdfjsLib.PDFJS.locale;
}
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 || 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 currentY = viewAreaElement.scrollTop;
      var lastY = state.lastY;
      if (currentY !== lastY) {
        state.down = currentY > lastY;
      }
      state.lastY = currentY;
      callback(state);
    });
  };
  var state = {
    down: true,
    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 getVisibleElements(scrollEl, views) {
  var sortByVisibility = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var top = scrollEl.scrollTop,
      bottom = top + scrollEl.clientHeight;
  var left = scrollEl.scrollLeft,
      right = left + scrollEl.clientWidth;
  function isElementBottomBelowViewTop(view) {
    var element = view.div;
    var elementBottom = element.offsetTop + element.clientTop + element.clientHeight;
    return elementBottom > top;
  }
  var visible = [],
      view = void 0,
      element = void 0;
  var currentHeight = void 0,
      viewHeight = void 0,
      hiddenHeight = void 0,
      percentHeight = void 0;
  var currentWidth = void 0,
      viewWidth = void 0;
  var firstVisibleElementInd = views.length === 0 ? 0 : binarySearchFirstItem(views, isElementBottomBelowViewTop);
  for (var i = firstVisibleElementInd, ii = views.length; i < ii; i++) {
    view = views[i];
    element = view.div;
    currentHeight = element.offsetTop + element.clientTop;
    viewHeight = element.clientHeight;
    if (currentHeight > bottom) {
      break;
    }
    currentWidth = element.offsetLeft + element.clientLeft;
    viewWidth = element.clientWidth;
    if (currentWidth + viewWidth < left || currentWidth > right) {
      continue;
    }
    hiddenHeight = Math.max(0, top - currentHeight) + Math.max(0, currentHeight + viewHeight - bottom);
    percentHeight = (viewHeight - hiddenHeight) * 100 / viewHeight | 0;
    visible.push({
      id: view.id,
      x: currentWidth,
      y: currentHeight,
      view: view,
      percent: percentHeight
    });
  }
  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 isFileSchema(url) {
  var i = 0,
      ii = url.length;
  while (i < ii && url[i].trim() === '') {
    i++;
  }
  return url.substr(i, 7).toLowerCase() === 'file://';
}
function isDataSchema(url) {
  var i = 0,
      ii = url.length;
  while (i < ii && url[i].trim() === '') {
    i++;
  }
  return url.substr(i, 5).toLowerCase() === 'data:';
}
function getPDFFileNameFromURL(url) {
  var defaultFilename = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'document.pdf';

  if (isDataSchema(url)) {
    console.warn('getPDFFileNameFromURL: ' + 'ignoring "data:" URL for performance reasons.');
    return defaultFilename;
  }
  var reURI = /^(?:(?:[^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
  var reFilename = /[^\/?#=]+\.pdf\b(?!.*\.pdf\b)/i;
  var splitURI = reURI.exec(url);
  var suggestedFilename = reFilename.exec(splitURI[1]) || reFilename.exec(splitURI[2]) || reFilename.exec(splitURI[3]);
  if (suggestedFilename) {
    suggestedFilename = suggestedFilename[0];
    if (suggestedFilename.indexOf('%') !== -1) {
      try {
        suggestedFilename = reFilename.exec(decodeURIComponent(suggestedFilename))[0];
      } catch (ex) {}
    }
  }
  return suggestedFilename || defaultFilename;
}
function normalizeWheelEventDelta(evt) {
  var delta = Math.sqrt(evt.deltaX * evt.deltaX + evt.deltaY * evt.deltaY);
  var angle = Math.atan2(evt.deltaY, evt.deltaX);
  if (-0.25 * Math.PI < angle && angle < 0.75 * Math.PI) {
    delta = -delta;
  }
  var MOUSE_DOM_DELTA_PIXEL_MODE = 0;
  var MOUSE_DOM_DELTA_LINE_MODE = 1;
  var MOUSE_PIXELS_PER_LINE = 30;
  var MOUSE_LINES_PER_PAGE = 30;
  if (evt.deltaMode === MOUSE_DOM_DELTA_PIXEL_MODE) {
    delta /= MOUSE_PIXELS_PER_LINE * MOUSE_LINES_PER_PAGE;
  } else if (evt.deltaMode === MOUSE_DOM_DELTA_LINE_MODE) {
    delta /= MOUSE_LINES_PER_PAGE;
  }
  return delta;
}
function isValidRotation(angle) {
  return Number.isInteger(angle) && angle % 90 === 0;
}
function cloneObj(obj) {
  var result = Object.create(null);
  for (var i in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, i)) {
      result[i] = obj[i];
    }
  }
  return result;
}
var WaitOnType = {
  EVENT: 'event',
  TIMEOUT: 'timeout'
};
function waitOnEventOrTimeout(_ref) {
  var target = _ref.target,
      name = _ref.name,
      _ref$delay = _ref.delay,
      delay = _ref$delay === undefined ? 0 : _ref$delay;

  if ((typeof target === 'undefined' ? 'undefined' : _typeof(target)) !== 'object' || !(name && typeof name === 'string') || !(Number.isInteger(delay) && delay >= 0)) {
    return Promise.reject(new Error('waitOnEventOrTimeout - invalid paramaters.'));
  }
  var capability = (0, _pdfjsLib.createPromiseCapability)();
  function handler(type) {
    if (target instanceof EventBus) {
      target.off(name, eventHandler);
    } else {
      target.removeEventListener(name, eventHandler);
    }
    if (timeout) {
      clearTimeout(timeout);
    }
    capability.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);
  return capability.promise;
}
var animationStarted = new Promise(function (resolve) {
  window.requestAnimationFrame(resolve);
});
var mozL10n = void 0;
var localized = Promise.resolve();

var EventBus = function () {
  function EventBus() {
    _classCallCheck(this, EventBus);

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

  _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) {
        return;
      }
      var args = Array.prototype.slice.call(arguments, 1);
      eventListeners.slice(0).forEach(function (listener) {
        listener.apply(null, args);
      });
    }
  }]);

  return EventBus;
}();

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

var ProgressBar = function () {
  function ProgressBar(id) {
    var _ref2 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
        height = _ref2.height,
        width = _ref2.width,
        units = _ref2.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;
}();

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.isFileSchema = isFileSchema;
exports.cloneObj = cloneObj;
exports.PresentationModeState = PresentationModeState;
exports.RendererType = RendererType;
exports.mozL10n = mozL10n;
exports.NullL10n = NullL10n;
exports.EventBus = EventBus;
exports.ProgressBar = ProgressBar;
exports.getPDFFileNameFromURL = getPDFFileNameFromURL;
exports.noContextMenuHandler = noContextMenuHandler;
exports.parseQueryString = parseQueryString;
exports.getVisibleElements = getVisibleElements;
exports.roundToDivide = roundToDivide;
exports.approximateFraction = approximateFraction;
exports.getOutputScale = getOutputScale;
exports.scrollIntoView = scrollIntoView;
exports.watchScroll = watchScroll;
exports.binarySearchFirstItem = binarySearchFirstItem;
exports.normalizeWheelEventDelta = normalizeWheelEventDelta;
exports.animationStarted = animationStarted;
exports.localized = localized;
exports.WaitOnType = WaitOnType;
exports.waitOnEventOrTimeout = waitOnEventOrTimeout;

/***/ }),
/* 2 */
/***/ (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__(1);

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

/***/ }),
/* 3 */
/***/ (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__(2);

var _ui_utils = __w_pdfjs_require__(1);

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;

    _classCallCheck(this, PDFLinkService);

    this.eventBus = eventBus || (0, _dom_events.getGlobalEventBus)();
    this.baseUrl = null;
    this.pdfDocument = null;
    this.pdfViewer = null;
    this.pdfHistory = null;
    this._pagesRefCache = null;
  }

  _createClass(PDFLinkService, [{
    key: 'setDocument',
    value: function setDocument(pdfDocument, baseUrl) {
      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 (!(data.explicitDest instanceof Array)) {
          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 (dest instanceof Array) {
        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.indexOf('=') >= 0) {
        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.indexOf('Fit') === -1) {
            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 (!(dest instanceof Array)) {
            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: 'onFileAttachmentAnnotation',
    value: function onFileAttachmentAnnotation(_ref3) {
      var id = _ref3.id,
          filename = _ref3.filename,
          content = _ref3.content;

      this.eventBus.dispatch('fileattachmentannotation', {
        source: this,
        id: id,
        filename: filename,
        content: content
      });
    }
  }, {
    key: 'cachePageRef',
    value: function cachePageRef(pageNum, pageRef) {
      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 (!(dest instanceof Array)) {
    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);
  }

  _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: 'onFileAttachmentAnnotation',
    value: function onFileAttachmentAnnotation(_ref4) {
      var id = _ref4.id,
          filename = _ref4.filename,
          content = _ref4.content;
    }
  }, {
    key: 'cachePageRef',
    value: function cachePageRef(pageNum, pageRef) {}
  }, {
    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;

/***/ }),
/* 4 */
/***/ (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__(0);

var _ui_utils = __w_pdfjs_require__(1);

var _pdf_link_service = __w_pdfjs_require__(3);

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$renderInteractiv = _ref.renderInteractiveForms,
        renderInteractiveForms = _ref$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.renderInteractiveForms = renderInteractiveForms;
    this.l10n = l10n;
    this.div = null;
    this._cancelled = false;
  }

  _createClass(AnnotationLayerBuilder, [{
    key: 'render',
    value: function render(viewport) {
      var _this = this;

      var intent = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'display';

      this.pdfPage.getAnnotations({ intent: intent }).then(function (annotations) {
        if (_this._cancelled) {
          return;
        }
        var parameters = {
          viewport: viewport.clone({ dontFlip: true }),
          div: _this.div,
          annotations: annotations,
          page: _this.pdfPage,
          renderInteractiveForms: _this.renderInteractiveForms,
          linkService: _this.linkService,
          downloadManager: _this.downloadManager
        };
        if (_this.div) {
          _pdfjsLib.AnnotationLayer.update(parameters);
        } else {
          if (annotations.length === 0) {
            return;
          }
          _this.div = document.createElement('div');
          _this.div.className = 'annotationLayer';
          _this.pageDiv.appendChild(_this.div);
          parameters.div = _this.div;
          _pdfjsLib.AnnotationLayer.render(parameters);
          _this.l10n.translate(_this.div);
        }
      });
    }
  }, {
    key: 'cancel',
    value: function cancel() {
      this._cancelled = true;
    }
  }, {
    key: 'hide',
    value: function hide() {
      if (!this.div) {
        return;
      }
      this.div.setAttribute('hidden', 'true');
    }
  }]);

  return AnnotationLayerBuilder;
}();

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

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

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

  return DefaultAnnotationLayerFactory;
}();

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

/***/ }),
/* 5 */
/***/ (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__(2);

var _pdfjsLib = __w_pdfjs_require__(0);

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

var EXPAND_DIVS_TIMEOUT = 300;

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._bindMouse();
  }

  _createClass(TextLayerBuilder, [{
    key: '_finishRendering',
    value: function _finishRendering() {
      this.renderingDone = true;
      if (!this.enhanceTextSelection) {
        var endOfContent = document.createElement('div');
        endOfContent.className = 'endOfContent';
        this.textLayerDiv.appendChild(endOfContent);
      }
      this.eventBus.dispatch('textlayerrendered', {
        source: this,
        pageNumber: this.pageNumber,
        numTextDivs: this.textDivs.length
      });
    }
  }, {
    key: 'render',
    value: function render() {
      var _this = this;

      var timeout = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;

      if (!(this.textContent || this.textContentStream) || this.renderingDone) {
        return;
      }
      this.cancel();
      this.textDivs = [];
      var textLayerFrag = document.createDocumentFragment();
      this.textLayerRenderTask = (0, _pdfjsLib.renderTextLayer)({
        textContent: this.textContent,
        textContentStream: this.textContentStream,
        container: textLayerFrag,
        viewport: this.viewport,
        textDivs: this.textDivs,
        textContentItemsStr: this.textContentItemsStr,
        timeout: timeout,
        enhanceTextSelection: this.enhanceTextSelection
      });
      this.textLayerRenderTask.promise.then(function () {
        _this.textLayerDiv.appendChild(textLayerFrag);
        _this._finishRendering();
        _this.updateMatches();
      }, function (reason) {});
    }
  }, {
    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) {
          this.findController.updateMatchPosition(pageIdx, i, textDivs, begin.divIdx);
        }
        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 === null || !this.findController.active) {
        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: '_bindMouse',
    value: function _bindMouse() {
      var _this2 = this;

      var div = this.textLayerDiv;
      var expandDivsTimer = null;
      div.addEventListener('mousedown', function (evt) {
        if (_this2.enhanceTextSelection && _this2.textLayerRenderTask) {
          _this2.textLayerRenderTask.expandTextDivs(true);
          if (expandDivsTimer) {
            clearTimeout(expandDivsTimer);
            expandDivsTimer = null;
          }
          return;
        }
        var end = div.querySelector('.endOfContent');
        if (!end) {
          return;
        }
        var adjustTop = evt.target !== div;
        adjustTop = adjustTop && window.getComputedStyle(end).getPropertyValue('-moz-user-select') !== 'none';
        if (adjustTop) {
          var divBounds = div.getBoundingClientRect();
          var r = Math.max(0, (evt.pageY - divBounds.top) / divBounds.height);
          end.style.top = (r * 100).toFixed(2) + '%';
        }
        end.classList.add('active');
      });
      div.addEventListener('mouseup', function () {
        if (_this2.enhanceTextSelection && _this2.textLayerRenderTask) {
          expandDivsTimer = setTimeout(function () {
            if (_this2.textLayerRenderTask) {
              _this2.textLayerRenderTask.expandTextDivs(false);
            }
            expandDivsTimer = null;
          }, EXPAND_DIVS_TIMEOUT);
          return;
        }
        var end = div.querySelector('.endOfContent');
        if (!end) {
          return;
        }
        end.style.top = '';
        end.classList.remove('active');
      });
    }
  }]);

  return TextLayerBuilder;
}();

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;

/***/ }),
/* 6 */
/***/ (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__(1);

var _pdfjsLib = __w_pdfjs_require__(0);

var _dom_events = __w_pdfjs_require__(2);

var _pdf_rendering_queue = __w_pdfjs_require__(7);

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

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.enhanceTextSelection = options.enhanceTextSelection || false;
    this.renderInteractiveForms = options.renderInteractiveForms || false;
    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.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;
    var div = document.createElement('div');
    div.className = 'page';
    div.style.width = Math.floor(this.viewport.width) + 'px';
    div.style.height = Math.floor(this.viewport.height) + 'px';
    div.setAttribute('data-page-number', this.id);
    this.div = div;
    container.appendChild(div);
  }

  _createClass(PDFPageView, [{
    key: 'setPdfPage',
    value: function setPdfPage(pdfPage) {
      this.pdfPage = pdfPage;
      this.pdfPageRotate = pdfPage.rotate;
      var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
      this.viewport = pdfPage.getViewport(this.scale * _ui_utils.CSS_UNITS, totalRotation);
      this.stats = pdfPage.stats;
      this.reset();
    }
  }, {
    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;
      div.style.width = Math.floor(this.viewport.width) + 'px';
      div.style.height = Math.floor(this.viewport.height) + 'px';
      var childNodes = div.childNodes;
      var currentZoomLayerNode = keepZoomLayer && this.zoomLayer || null;
      var currentAnnotationNode = keepAnnotations && this.annotationLayer && this.annotationLayer.div || null;
      for (var i = childNodes.length - 1; i >= 0; i--) {
        var node = childNodes[i];
        if (currentZoomLayerNode === node || currentAnnotationNode === node) {
          continue;
        }
        div.removeChild(node);
      }
      div.removeAttribute('data-loaded');
      if (currentAnnotationNode) {
        this.annotationLayer.hide();
      } else if (this.annotationLayer) {
        this.annotationLayer.cancel();
        this.annotationLayer = null;
      }
      if (!currentZoomLayerNode) {
        if (this.canvas) {
          this.paintedViewportMap.delete(this.canvas);
          this.canvas.width = 0;
          this.canvas.height = 0;
          delete this.canvas;
        }
        this._resetZoomLayer();
      }
      if (this.svg) {
        this.paintedViewportMap.delete(this.svg);
        delete this.svg;
      }
      this.loadingIconDiv = document.createElement('div');
      this.loadingIconDiv.className = 'loadingIcon';
      div.appendChild(this.loadingIconDiv);
    }
  }, {
    key: 'update',
    value: function update(scale, rotation) {
      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;
      if (this.canvas && _pdfjsLib.PDFJS.maxCanvasPixels > 0) {
        var outputScale = this.outputScale;
        if ((Math.floor(this.viewport.width) * outputScale.sx | 0) * (Math.floor(this.viewport.height) * outputScale.sy | 0) > _pdfjsLib.PDFJS.maxCanvasPixels) {
          isScalingRestricted = true;
        }
      }
      if (this.canvas) {
        if (_pdfjsLib.PDFJS.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;

      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;
      }
    }
  }, {
    key: 'cssTransform',
    value: function cssTransform(target) {
      var redrawAnnotations = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

      var width = this.viewport.width;
      var height = this.viewport.height;
      var div = this.div;
      target.style.width = target.parentNode.style.width = div.style.width = Math.floor(width) + 'px';
      target.style.height = target.parentNode.style.height = div.style.height = Math.floor(height) + 'px';
      var relativeRotation = this.viewport.rotation - this.paintedViewportMap.get(target).rotation;
      var absRotation = Math.abs(relativeRotation);
      var scaleX = 1,
          scaleY = 1;
      if (absRotation === 90 || absRotation === 270) {
        scaleX = height / width;
        scaleY = width / height;
      }
      var cssTransform = 'rotate(' + relativeRotation + 'deg) ' + 'scale(' + scaleX + ',' + scaleY + ')';
      target.style.transform = cssTransform;
      if (this.textLayer) {
        var textLayerViewport = this.textLayer.viewport;
        var textRelativeRotation = this.viewport.rotation - textLayerViewport.rotation;
        var textAbsRotation = Math.abs(textRelativeRotation);
        var scale = width / textLayerViewport.width;
        if (textAbsRotation === 90 || textAbsRotation === 270) {
          scale = width / textLayerViewport.height;
        }
        var textLayerDiv = this.textLayer.textLayerDiv;
        var transX = 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: '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.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.enhanceTextSelection);
      }
      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.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 (_pdfjsLib.PDFJS.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 (_pdfjsLib.PDFJS.maxCanvasPixels > 0) {
        var pixelsInViewport = viewport.width * viewport.height;
        var maxScale = Math.sqrt(_pdfjsLib.PDFJS.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,
        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;

/***/ }),
/* 7 */
/***/ (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;

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

"use strict";


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

var _ui_utils = __w_pdfjs_require__(1);

var _pdf_rendering_queue = __w_pdfjs_require__(7);

var _annotation_layer_builder = __w_pdfjs_require__(4);

var _dom_events = __w_pdfjs_require__(2);

var _pdf_page_view = __w_pdfjs_require__(6);

var _pdf_link_service = __w_pdfjs_require__(3);

var _text_layer_builder = __w_pdfjs_require__(5);

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

var DEFAULT_CACHE_SIZE = 10;
function PDFPageViewBuffer(size) {
  var data = [];
  this.push = function (view) {
    var i = data.indexOf(view);
    if (i >= 0) {
      data.splice(i, 1);
    }
    data.push(view);
    if (data.length > size) {
      data.shift().destroy();
    }
  };
  this.resize = function (newSize) {
    size = newSize;
    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;
}
function isPortraitOrientation(size) {
  return size.width <= size.height;
}

var BaseViewer = function () {
  function BaseViewer(options) {
    _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.removePageBorders = options.removePageBorders || false;
    this.enhanceTextSelection = options.enhanceTextSelection || false;
    this.renderInteractiveForms = options.renderInteractiveForms || false;
    this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
    this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
    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');
    }
  }

  _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 _this = this;

      if (this.pdfDocument) {
        this._cancelRendering();
        this._resetView();
      }
      this.pdfDocument = pdfDocument;
      if (!pdfDocument) {
        return;
      }
      var pagesCount = pdfDocument.numPages;
      var pagesCapability = (0, _pdfjsLib.createPromiseCapability)();
      this.pagesPromise = pagesCapability.promise;
      pagesCapability.promise.then(function () {
        _this._pageViewsReady = true;
        _this.eventBus.dispatch('pagesloaded', {
          source: _this,
          pagesCount: pagesCount
        });
      });
      var isOnePageRenderedResolved = false;
      var onePageRenderedCapability = (0, _pdfjsLib.createPromiseCapability)();
      this.onePageRendered = onePageRenderedCapability.promise;
      var bindOnAfterAndBeforeDraw = function bindOnAfterAndBeforeDraw(pageView) {
        pageView.onBeforeDraw = function () {
          _this._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 = _this.currentScale;
        var viewport = pdfPage.getViewport(scale * _ui_utils.CSS_UNITS);
        for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
          var textLayerFactory = null;
          if (!_pdfjsLib.PDFJS.disableTextLayer) {
            textLayerFactory = _this;
          }
          var pageView = new _pdf_page_view.PDFPageView({
            container: _this._setDocumentViewerElement,
            eventBus: _this.eventBus,
            id: pageNum,
            scale: scale,
            defaultViewport: viewport.clone(),
            renderingQueue: _this.renderingQueue,
            textLayerFactory: textLayerFactory,
            annotationLayerFactory: _this,
            enhanceTextSelection: _this.enhanceTextSelection,
            renderInteractiveForms: _this.renderInteractiveForms,
            renderer: _this.renderer,
            l10n: _this.l10n
          });
          bindOnAfterAndBeforeDraw(pageView);
          _this._pages.push(pageView);
        }
        onePageRenderedCapability.promise.then(function () {
          if (_pdfjsLib.PDFJS.disableAutoFetch) {
            pagesCapability.resolve();
            return;
          }
          var getPagesLeft = pagesCount;

          var _loop = function _loop(_pageNum) {
            pdfDocument.getPage(_pageNum).then(function (pdfPage) {
              var pageView = _this._pages[_pageNum - 1];
              if (!pageView.pdfPage) {
                pageView.setPdfPage(pdfPage);
              }
              _this.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);
          }
        });
        _this.eventBus.dispatch('pagesinit', { source: _this });
        if (_this.defaultRenderingQueue) {
          _this.update();
        }
        if (_this.findController) {
          _this.findController.resolveFirstPage();
        }
      }).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 (!(labels instanceof Array && 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.viewer.textContent = '';
    }
  }, {
    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._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 hPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
        var vPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
        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 isLandscape = currentPage.width > currentPage.height;
            var horizontalScale = isLandscape ? Math.min(pageHeightScale, pageWidthScale) : 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) {
      var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * numVisiblePages + 1);
      this._buffer.resize(suggestedCacheSize);
    }
  }, {
    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 _this2 = 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);
        }
        _this2._pagesRequests[pageNumber] = null;
        return pdfPage;
      }).catch(function (reason) {
        console.error('Unable to get page for page view', reason);
        _this2._pagesRequests[pageNumber] = null;
      });
      this._pagesRequests[pageNumber] = promise;
      return promise;
    }
  }, {
    key: 'forceRendering',
    value: function forceRendering(currentlyVisiblePages) {
      var _this3 = this;

      var visiblePages = currentlyVisiblePages || this._getVisiblePages();
      var pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, this.scroll.down);
      if (pageView) {
        this._ensurePdfPageLoaded(pageView).then(function () {
          _this3.renderingQueue.renderView(pageView);
        });
        return true;
      }
      return false;
    }
  }, {
    key: 'getPageTextContent',
    value: function getPageTextContent(pageIndex) {
      return this.pdfDocument.getPage(pageIndex + 1).then(function (page) {
        return page.getTextContent({ normalizeWhitespace: true });
      });
    }
  }, {
    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 renderInteractiveForms = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
      var l10n = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : _ui_utils.NullL10n;

      return new _annotation_layer_builder.AnnotationLayerBuilder({
        pageDiv: pageDiv,
        pdfPage: pdfPage,
        renderInteractiveForms: renderInteractiveForms,
        linkService: this.linkService,
        downloadManager: this.downloadManager,
        l10n: l10n
      });
    }
  }, {
    key: 'setFindController',
    value: function setFindController(findController) {
      this.findController = findController;
    }
  }, {
    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 = isPortraitOrientation(pagesOverview[0]);
      return pagesOverview.map(function (size) {
        if (isFirstPagePortrait === isPortraitOrientation(size)) {
          return size;
        }
        return {
          width: size.height,
          height: size.width,
          rotation: (size.rotation + 90) % 360
        };
      });
    }
  }, {
    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;
      }
      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: '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: '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;
    }
  }]);

  return BaseViewer;
}();

exports.BaseViewer = BaseViewer;

/***/ }),
/* 9 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


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

var _annotation_layer_builder = __w_pdfjs_require__(4);

var _text_layer_builder = __w_pdfjs_require__(5);

var _ui_utils = __w_pdfjs_require__(1);

var _pdf_link_service = __w_pdfjs_require__(3);

var _download_manager = __w_pdfjs_require__(10);

var _genericl10n = __w_pdfjs_require__(11);

var _pdf_find_controller = __w_pdfjs_require__(13);

var _pdf_history = __w_pdfjs_require__(14);

var _pdfjs = __w_pdfjs_require__(0);

var _pdfjs2 = _interopRequireDefault(_pdfjs);

var _pdf_page_view = __w_pdfjs_require__(6);

var _pdf_single_page_viewer = __w_pdfjs_require__(15);

var _pdf_viewer = __w_pdfjs_require__(16);

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

var PDFJS = _pdfjs2.default.PDFJS;

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

/***/ }),
/* 10 */
/***/ (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__(0);

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

;
function _download(blobUrl, filename) {
  var a = document.createElement('a');
  if (a.click) {
    a.href = blobUrl;
    a.target = '_parent';
    if ('download' in a) {
      a.download = filename;
    }
    (document.body || document.documentElement).appendChild(a);
    a.click();
    a.parentNode.removeChild(a);
  } else {
    if (window.top === window && blobUrl.split('#')[0] === window.location.href.split('#')[0]) {
      var padCharacter = blobUrl.indexOf('?') === -1 ? '?' : '&';
      blobUrl = blobUrl.replace(/#|$/, padCharacter + '$&');
    }
    window.open(blobUrl, '_parent');
  }
}

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

  _createClass(DownloadManager, [{
    key: 'downloadUrl',
    value: function downloadUrl(url, filename) {
      if (!(0, _pdfjsLib.createValidAbsoluteUrl)(url, 'http://example.com')) {
        return;
      }
      _download(url + '#pdfjs.action=download', filename);
    }
  }, {
    key: 'downloadData',
    value: function downloadData(data, filename, contentType) {
      if (navigator.msSaveBlob) {
        return navigator.msSaveBlob(new Blob([data], { type: contentType }), filename);
      }
      var blobUrl = (0, _pdfjsLib.createObjectURL)(data, contentType, _pdfjsLib.PDFJS.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 (_pdfjsLib.PDFJS.disableCreateObjectURL) {
        this.downloadUrl(url, filename);
        return;
      }
      var blobUrl = URL.createObjectURL(blob);
      _download(blobUrl, filename);
    }
  }]);

  return DownloadManager;
}();

exports.DownloadManager = DownloadManager;

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

"use strict";


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

__w_pdfjs_require__(12);

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: 'getDirection',
    value: function getDirection() {
      return this._ready.then(function (l10n) {
        return l10n.getDirection();
      });
    }
  }, {
    key: 'get',
    value: function get(property, args, fallback) {
      return this._ready.then(function (l10n) {
        return l10n.get(property, args, fallback);
      });
    }
  }, {
    key: 'translate',
    value: function translate(element) {
      return this._ready.then(function (l10n) {
        return l10n.translate(element);
      });
    }
  }]);

  return GenericL10n;
}();

exports.GenericL10n = GenericL10n;

/***/ }),
/* 12 */
/***/ (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.substr(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.substr(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);

/***/ }),
/* 13 */
/***/ (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__(0);

var _ui_utils = __w_pdfjs_require__(1);

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_SCROLL_OFFSET_TOP = -50;
var FIND_SCROLL_OFFSET_LEFT = -400;
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 pdfViewer = _ref.pdfViewer;

    _classCallCheck(this, PDFFindController);

    this.pdfViewer = pdfViewer;
    this.onUpdateResultsCount = null;
    this.onUpdateState = null;
    this.reset();
    var replace = Object.keys(CHARACTERS_TO_NORMALIZE).join('');
    this.normalizationRegex = new RegExp('[' + replace + ']', 'g');
  }

  _createClass(PDFFindController, [{
    key: 'reset',
    value: function reset() {
      var _this = this;

      this.startedTextExtraction = false;
      this.extractTextPromises = [];
      this.pendingFindMatches = Object.create(null);
      this.active = false;
      this.pageContents = [];
      this.pageMatches = [];
      this.pageMatchesLength = null;
      this.matchCount = 0;
      this.selected = {
        pageIdx: -1,
        matchIdx: -1
      };
      this.offset = {
        pageIdx: null,
        matchIdx: null
      };
      this.pagesToSearch = null;
      this.resumePageIdx = null;
      this.state = null;
      this.dirtyMatch = false;
      this.findTimeout = null;
      this._firstPagePromise = new Promise(function (resolve) {
        _this.resolveFirstPage = resolve;
      });
    }
  }, {
    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: 'calcFindPhraseMatch',
    value: function calcFindPhraseMatch(query, pageIndex, pageContent) {
      var matches = [];
      var queryLen = query.length;
      var matchIdx = -queryLen;
      while (true) {
        matchIdx = pageContent.indexOf(query, matchIdx + queryLen);
        if (matchIdx === -1) {
          break;
        }
        matches.push(matchIdx);
      }
      this.pageMatches[pageIndex] = matches;
    }
  }, {
    key: 'calcFindWordMatch',
    value: function calcFindWordMatch(query, pageIndex, pageContent) {
      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;
          }
          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: 'calcFindMatch',
    value: function calcFindMatch(pageIndex) {
      var pageContent = this.normalize(this.pageContents[pageIndex]);
      var query = this.normalize(this.state.query);
      var caseSensitive = this.state.caseSensitive;
      var phraseSearch = this.state.phraseSearch;
      var queryLen = query.length;
      if (queryLen === 0) {
        return;
      }
      if (!caseSensitive) {
        pageContent = pageContent.toLowerCase();
        query = query.toLowerCase();
      }
      if (phraseSearch) {
        this.calcFindPhraseMatch(query, pageIndex, pageContent);
      } else {
        this.calcFindWordMatch(query, pageIndex, pageContent);
      }
      this.updatePage(pageIndex);
      if (this.resumePageIdx === pageIndex) {
        this.resumePageIdx = null;
        this.nextPageMatch();
      }
      if (this.pageMatches[pageIndex].length > 0) {
        this.matchCount += this.pageMatches[pageIndex].length;
        this.updateUIResultsCount();
      }
    }
  }, {
    key: 'extractText',
    value: function extractText() {
      var _this2 = this;

      if (this.startedTextExtraction) {
        return;
      }
      this.startedTextExtraction = true;
      this.pageContents.length = 0;
      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.pdfViewer.getPageTextContent(i).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 page ' + (i + 1) + ' text content', reason);
            _this2.pageContents[i] = '';
            extractTextCapability.resolve(i);
          });
        });
      };

      for (var i = 0, ii = this.pdfViewer.pagesCount; i < ii; i++) {
        _loop(i, ii);
      }
    }
  }, {
    key: 'executeCommand',
    value: function executeCommand(cmd, state) {
      var _this3 = this;

      if (this.state === null || cmd !== 'findagain') {
        this.dirtyMatch = true;
      }
      this.state = state;
      this.updateUIState(FindState.PENDING);
      this._firstPagePromise.then(function () {
        _this3.extractText();
        clearTimeout(_this3.findTimeout);
        if (cmd === 'find') {
          _this3.findTimeout = setTimeout(_this3.nextMatch.bind(_this3), FIND_TIMEOUT);
        } else {
          _this3.nextMatch();
        }
      });
    }
  }, {
    key: 'updatePage',
    value: function updatePage(index) {
      if (this.selected.pageIdx === index) {
        this.pdfViewer.currentPageNumber = index + 1;
      }
      var page = this.pdfViewer.getPageView(index);
      if (page.textLayer) {
        page.textLayer.updateMatches();
      }
    }
  }, {
    key: 'nextMatch',
    value: function nextMatch() {
      var _this4 = this;

      var previous = this.state.findPrevious;
      var currentPageIndex = this.pdfViewer.currentPageNumber - 1;
      var numPages = this.pdfViewer.pagesCount;
      this.active = true;
      if (this.dirtyMatch) {
        this.dirtyMatch = false;
        this.selected.pageIdx = this.selected.matchIdx = -1;
        this.offset.pageIdx = currentPageIndex;
        this.offset.matchIdx = null;
        this.hadMatch = false;
        this.resumePageIdx = null;
        this.pageMatches = [];
        this.matchCount = 0;
        this.pageMatchesLength = null;
        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 _this4.pendingFindMatches[pageIdx];
              _this4.calcFindMatch(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) {
          this.hadMatch = true;
          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) {
        this.hadMatch = true;
        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: 'updateMatchPosition',
    value: function updateMatchPosition(pageIndex, matchIndex, elements, beginIdx) {
      if (this.selected.matchIdx === matchIndex && this.selected.pageIdx === pageIndex) {
        var spot = {
          top: FIND_SCROLL_OFFSET_TOP,
          left: FIND_SCROLL_OFFSET_LEFT
        };
        (0, _ui_utils.scrollIntoView)(elements[beginIdx], spot, true);
      }
    }
  }, {
    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.extractTextPromises.length;
      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: 'updateUIResultsCount',
    value: function updateUIResultsCount() {
      if (this.onUpdateResultsCount) {
        this.onUpdateResultsCount(this.matchCount);
      }
    }
  }, {
    key: 'updateUIState',
    value: function updateUIState(state, previous) {
      if (this.onUpdateState) {
        this.onUpdateState(state, previous, this.matchCount);
      }
    }
  }]);

  return PDFFindController;
}();

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

/***/ }),
/* 14 */
/***/ (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__(1);

var _dom_events = __w_pdfjs_require__(2);

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' || !(explicitDest instanceof Array) || !(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 = (0, _ui_utils.cloneObj)(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 (first instanceof Array || second instanceof Array) {
      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 (!(firstDest instanceof Array && secondDest instanceof Array)) {
    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;

/***/ }),
/* 15 */
/***/ (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__(8);

var _ui_utils = __w_pdfjs_require__(1);

var _pdfjsLib = __w_pdfjs_require__(0);

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: '_setDocumentViewerElement',
    get: function get() {
      return (0, _pdfjsLib.shadow)(this, '_setDocumentViewerElement', this._shadowViewer);
    }
  }]);

  return PDFSinglePageViewer;
}(_base_viewer.BaseViewer);

exports.PDFSinglePageViewer = PDFSinglePageViewer;

/***/ }),
/* 16 */
/***/ (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 _ui_utils = __w_pdfjs_require__(1);

var _base_viewer = __w_pdfjs_require__(8);

var _pdfjsLib = __w_pdfjs_require__(0);

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;

      (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
    }
  }, {
    key: '_getVisiblePages',
    value: function _getVisiblePages() {
      if (!this.isInPresentationMode) {
        return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true);
      }
      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);
      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);
    }
  }]);

  return PDFViewer;
}(_base_viewer.BaseViewer);

exports.PDFViewer = PDFViewer;

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