pdfjs-dist/web/pdf_viewer.js

/* 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.
 */

(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();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
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/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


{
  var pdfjsLib;
  if (typeof __pdfjsdev_webpack__ === 'undefined') {
    if (typeof window !== 'undefined' && window['pdfjs-dist/build/pdf']) {
      pdfjsLib = window['pdfjs-dist/build/pdf'];
    } else if (typeof require === 'function') {
      pdfjsLib = require('../build/pdf.js');
    } else {
      throw new Error('Neither `require` nor `window` found');
    }
  }
  module.exports = pdfjsLib;
}

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

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
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.mozL10n = exports.RendererType = exports.cloneObj = 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 _pdfjs = __w_pdfjs_require__(0);

var CSS_UNITS = 96.0 / 72.0;
var DEFAULT_SCALE_VALUE = 'auto';
var DEFAULT_SCALE = 1.0;
var MIN_SCALE = 0.25;
var MAX_SCALE = 10.0;
var UNKNOWN_SCALE = 0;
var MAX_AUTO_SCALE = 1.25;
var SCROLLBAR_PADDING = 40;
var VERTICAL_PADDING = 5;
var RendererType = {
  CANVAS: 'canvas',
  SVG: 'svg'
};
var mozL10n = typeof document !== 'undefined' ? document.mozL10n || document.webL10n : undefined;
_pdfjs.PDFJS.disableFullscreen = _pdfjs.PDFJS.disableFullscreen === undefined ? false : _pdfjs.PDFJS.disableFullscreen;
_pdfjs.PDFJS.useOnlyCssZoom = _pdfjs.PDFJS.useOnlyCssZoom === undefined ? false : _pdfjs.PDFJS.useOnlyCssZoom;
_pdfjs.PDFJS.maxCanvasPixels = _pdfjs.PDFJS.maxCanvasPixels === undefined ? 16777216 : _pdfjs.PDFJS.maxCanvasPixels;
_pdfjs.PDFJS.disableHistory = _pdfjs.PDFJS.disableHistory === undefined ? false : _pdfjs.PDFJS.disableHistory;
_pdfjs.PDFJS.disableTextLayer = _pdfjs.PDFJS.disableTextLayer === undefined ? false : _pdfjs.PDFJS.disableTextLayer;
_pdfjs.PDFJS.ignoreCurrentPositionOnZoom = _pdfjs.PDFJS.ignoreCurrentPositionOnZoom === undefined ? false : _pdfjs.PDFJS.ignoreCurrentPositionOnZoom;
{
  _pdfjs.PDFJS.locale = _pdfjs.PDFJS.locale === undefined && typeof navigator !== 'undefined' ? navigator.language : _pdfjs.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, skipOverflowHiddenElements) {
  var parent = element.offsetParent;
  if (!parent) {
    console.error('offsetParent is not set -- cannot scroll');
    return;
  }
  var checkOverflow = skipOverflowHiddenElements || false;
  var offsetY = element.offsetTop + element.clientTop;
  var offsetX = element.offsetLeft + element.clientLeft;
  while (parent.clientHeight === parent.scrollHeight || checkOverflow && 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 = {};
  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;
  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, sortByVisibility) {
  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,
      element;
  var currentHeight, viewHeight, hiddenHeight, percentHeight;
  var currentWidth, viewWidth;
  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(e) {
  e.preventDefault();
}
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 (e) {}
    }
  }
  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 cloneObj(obj) {
  var result = {};
  for (var i in obj) {
    if (Object.prototype.hasOwnProperty.call(obj, i)) {
      result[i] = obj[i];
    }
  }
  return result;
}
var animationStarted = new Promise(function (resolve) {
  window.requestAnimationFrame(resolve);
});
var localized = new Promise(function (resolve, reject) {
  if (!mozL10n) {
    resolve();
    return;
  }
  if (mozL10n.getReadyState() !== 'loading') {
    resolve();
    return;
  }
  window.addEventListener('localized', function localized(evt) {
    resolve();
  });
});
var EventBus = function EventBusClosure() {
  function EventBus() {
    this._listeners = Object.create(null);
  }
  EventBus.prototype = {
    on: function EventBus_on(eventName, listener) {
      var eventListeners = this._listeners[eventName];
      if (!eventListeners) {
        eventListeners = [];
        this._listeners[eventName] = eventListeners;
      }
      eventListeners.push(listener);
    },
    off: function EventBus_on(eventName, listener) {
      var eventListeners = this._listeners[eventName];
      var i;
      if (!eventListeners || (i = eventListeners.indexOf(listener)) < 0) {
        return;
      }
      eventListeners.splice(i, 1);
    },
    dispatch: function EventBus_dispath(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;
}();
var ProgressBar = function ProgressBarClosure() {
  function clamp(v, min, max) {
    return Math.min(Math.max(v, min), max);
  }
  function ProgressBar(id, opts) {
    this.visible = true;
    this.div = document.querySelector(id + ' .progress');
    this.bar = this.div.parentNode;
    this.height = opts.height || 100;
    this.width = opts.width || 100;
    this.units = opts.units || '%';
    this.div.style.height = this.height + this.units;
    this.percent = 0;
  }
  ProgressBar.prototype = {
    updateBar: function ProgressBar_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;
    },
    get percent() {
      return this._percent;
    },
    set percent(val) {
      this._indeterminate = isNaN(val);
      this._percent = clamp(val, 0, 100);
      this.updateBar();
    },
    setWidth: function ProgressBar_setWidth(viewer) {
      if (viewer) {
        var container = viewer.parentNode;
        var scrollbarWidth = container.offsetWidth - viewer.offsetWidth;
        if (scrollbarWidth > 0) {
          this.bar.setAttribute('style', 'width: calc(100% - ' + scrollbarWidth + 'px);');
        }
      }
    },
    hide: function ProgressBar_hide() {
      if (!this.visible) {
        return;
      }
      this.visible = false;
      this.bar.classList.add('hidden');
      document.body.classList.remove('loadingInProgress');
    },
    show: function ProgressBar_show() {
      if (this.visible) {
        return;
      }
      this.visible = true;
      document.body.classList.add('loadingInProgress');
      this.bar.classList.remove('hidden');
    }
  };
  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.cloneObj = cloneObj;
exports.RendererType = RendererType;
exports.mozL10n = mozL10n;
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;

/***/ }),
/* 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 (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('pagerendered', true, true, {
      pageNumber: e.pageNumber,
      cssTransform: e.cssTransform
    });
    e.source.div.dispatchEvent(event);
  });
  eventBus.on('textlayerrendered', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('textlayerrendered', true, true, { pageNumber: e.pageNumber });
    e.source.textLayerDiv.dispatchEvent(event);
  });
  eventBus.on('pagechange', function (e) {
    var event = document.createEvent('UIEvents');
    event.initUIEvent('pagechange', true, true, window, 0);
    event.pageNumber = e.pageNumber;
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('pagesinit', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('pagesinit', true, true, null);
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('pagesloaded', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('pagesloaded', true, true, { pagesCount: e.pagesCount });
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('scalechange', function (e) {
    var event = document.createEvent('UIEvents');
    event.initUIEvent('scalechange', true, true, window, 0);
    event.scale = e.scale;
    event.presetValue = e.presetValue;
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('updateviewarea', function (e) {
    var event = document.createEvent('UIEvents');
    event.initUIEvent('updateviewarea', true, true, window, 0);
    event.location = e.location;
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('find', function (e) {
    if (e.source === window) {
      return;
    }
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('find' + e.type, true, true, {
      query: e.query,
      phraseSearch: e.phraseSearch,
      caseSensitive: e.caseSensitive,
      highlightAll: e.highlightAll,
      findPrevious: e.findPrevious
    });
    window.dispatchEvent(event);
  });
  eventBus.on('attachmentsloaded', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('attachmentsloaded', true, true, { attachmentsCount: e.attachmentsCount });
    e.source.container.dispatchEvent(event);
  });
  eventBus.on('sidebarviewchanged', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('sidebarviewchanged', true, true, { view: e.view });
    e.source.outerContainer.dispatchEvent(event);
  });
  eventBus.on('pagemode', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('pagemode', true, true, { mode: e.mode });
    e.source.pdfViewer.container.dispatchEvent(event);
  });
  eventBus.on('namedaction', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('namedaction', true, true, { action: e.action });
    e.source.pdfViewer.container.dispatchEvent(event);
  });
  eventBus.on('presentationmodechanged', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('presentationmodechanged', true, true, {
      active: e.active,
      switchInProgress: e.switchInProgress
    });
    window.dispatchEvent(event);
  });
  eventBus.on('outlineloaded', function (e) {
    var event = document.createEvent('CustomEvent');
    event.initCustomEvent('outlineloaded', true, true, { outlineCount: e.outlineCount });
    e.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 _dom_events = __w_pdfjs_require__(2);

var _ui_utils = __w_pdfjs_require__(1);

var PDFLinkService = function PDFLinkServiceClosure() {
  function PDFLinkService(options) {
    options = options || {};
    this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
    this.baseUrl = null;
    this.pdfDocument = null;
    this.pdfViewer = null;
    this.pdfHistory = null;
    this._pagesRefCache = null;
  }
  PDFLinkService.prototype = {
    setDocument: function PDFLinkService_setDocument(pdfDocument, baseUrl) {
      this.baseUrl = baseUrl;
      this.pdfDocument = pdfDocument;
      this._pagesRefCache = Object.create(null);
    },
    setViewer: function PDFLinkService_setViewer(pdfViewer) {
      this.pdfViewer = pdfViewer;
    },
    setHistory: function PDFLinkService_setHistory(pdfHistory) {
      this.pdfHistory = pdfHistory;
    },
    get pagesCount() {
      return this.pdfDocument ? this.pdfDocument.numPages : 0;
    },
    get page() {
      return this.pdfViewer.currentPageNumber;
    },
    set page(value) {
      this.pdfViewer.currentPageNumber = value;
    },
    navigateTo: function navigateTo(dest) {
      var _this = this;

      var goToDestination = function goToDestination(_ref) {
        var namedDest = _ref.namedDest,
            explicitDest = _ref.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 ((destRef | 0) === 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;
        }
        _this.pdfViewer.scrollPageIntoView({
          pageNumber: pageNumber,
          destArray: explicitDest
        });
        if (_this.pdfHistory) {
          _this.pdfHistory.push({
            dest: explicitDest,
            hash: namedDest,
            page: pageNumber
          });
        }
      };
      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);
      });
    },
    getDestinationHash: 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('');
    },

    getAnchorUrl: function PDFLinkService_getAnchorUrl(anchor) {
      return (this.baseUrl || '') + anchor;
    },
    setHash: function PDFLinkService_setHash(hash) {
      var pageNumber, dest;
      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) {
          if (this.pdfHistory) {
            this.pdfHistory.updateNextHashParam(params.nameddest);
          }
          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 {
        if (/^\d+$/.test(hash) && hash <= this.pagesCount) {
          console.warn('PDFLinkService_setHash: specifying a page number ' + 'directly after the hash symbol (#) is deprecated, ' + 'please use the "#page=' + hash + '" form instead.');
          this.page = hash | 0;
        }
        dest = unescape(hash);
        try {
          dest = JSON.parse(dest);
          if (!(dest instanceof Array)) {
            dest = dest.toString();
          }
        } catch (ex) {}
        if (typeof dest === 'string' || isValidExplicitDestination(dest)) {
          if (this.pdfHistory) {
            this.pdfHistory.updateNextHashParam(dest);
          }
          this.navigateTo(dest);
          return;
        }
        console.error('PDFLinkService_setHash: \'' + unescape(hash) + '\' is not a valid destination.');
      }
    },
    executeNamedAction: function PDFLinkService_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
      });
    },
    onFileAttachmentAnnotation: function onFileAttachmentAnnotation() {
      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      this.eventBus.dispatch('fileattachmentannotation', {
        source: this,
        id: params.id,
        filename: params.filename,
        content: params.content
      });
    },

    cachePageRef: function PDFLinkService_cachePageRef(pageNum, pageRef) {
      var refStr = pageRef.num + ' ' + pageRef.gen + ' R';
      this._pagesRefCache[refStr] = pageNum;
    },
    _cachedPageNumber: function PDFLinkService_cachedPageNumber(pageRef) {
      var refStr = pageRef.num + ' ' + pageRef.gen + ' R';
      return this._pagesRefCache && this._pagesRefCache[refStr] || null;
    }
  };
  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' && typeof page.num === 'number' && (page.num | 0) === page.num && typeof page.gen === 'number' && (page.gen | 0) === page.gen) && !(typeof page === 'number' && (page | 0) === 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;
  }
  return PDFLinkService;
}();
var SimpleLinkService = function SimpleLinkServiceClosure() {
  function SimpleLinkService() {}
  SimpleLinkService.prototype = {
    get page() {
      return 0;
    },
    set page(value) {},
    navigateTo: function navigateTo(dest) {},
    getDestinationHash: function getDestinationHash(dest) {
      return '#';
    },
    getAnchorUrl: function getAnchorUrl(hash) {
      return '#';
    },
    setHash: function setHash(hash) {},
    executeNamedAction: function executeNamedAction(action) {},
    onFileAttachmentAnnotation: function onFileAttachmentAnnotation(params) {},
    cachePageRef: function cachePageRef(pageNum, pageRef) {}
  };
  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 _pdfjs = __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(options) {
    _classCallCheck(this, AnnotationLayerBuilder);

    this.pageDiv = options.pageDiv;
    this.pdfPage = options.pdfPage;
    this.renderInteractiveForms = options.renderInteractiveForms;
    this.linkService = options.linkService;
    this.downloadManager = options.downloadManager;
    this.div = null;
  }

  _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) {
        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) {
          _pdfjs.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;
          _pdfjs.AnnotationLayer.render(parameters);
          if (typeof _ui_utils.mozL10n !== 'undefined') {
            _ui_utils.mozL10n.translate(_this.div);
          }
        }
      });
    }
  }, {
    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;

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

  return DefaultAnnotationLayerFactory;
}();

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

/***/ }),
/* 5 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


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

var _ui_utils = __w_pdfjs_require__(1);

var _pdfjs = __w_pdfjs_require__(0);

var _dom_events = __w_pdfjs_require__(2);

var _pdf_rendering_queue = __w_pdfjs_require__(7);

var TEXT_LAYER_RENDER_DELAY = 200;
var PDFPageView = function PDFPageViewClosure() {
  function PDFPageView(options) {
    var container = options.container;
    var id = options.id;
    var scale = options.scale;
    var defaultViewport = options.defaultViewport;
    var renderingQueue = options.renderingQueue;
    var textLayerFactory = options.textLayerFactory;
    var annotationLayerFactory = options.annotationLayerFactory;
    var enhanceTextSelection = options.enhanceTextSelection || false;
    var renderInteractiveForms = options.renderInteractiveForms || false;
    this.id = id;
    this.renderingId = 'page' + id;
    this.pageLabel = null;
    this.rotation = 0;
    this.scale = scale || _ui_utils.DEFAULT_SCALE;
    this.viewport = defaultViewport;
    this.pdfPageRotate = defaultViewport.rotation;
    this.hasRestrictedScaling = false;
    this.enhanceTextSelection = enhanceTextSelection;
    this.renderInteractiveForms = renderInteractiveForms;
    this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
    this.renderingQueue = renderingQueue;
    this.textLayerFactory = textLayerFactory;
    this.annotationLayerFactory = annotationLayerFactory;
    this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
    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.textLayer = null;
    this.zoomLayer = null;
    this.annotationLayer = 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);
  }
  PDFPageView.prototype = {
    setPdfPage: function PDFPageView_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();
    },
    destroy: function PDFPageView_destroy() {
      this.reset();
      if (this.pdfPage) {
        this.pdfPage.cleanup();
      }
    },
    _resetZoomLayer: 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;
    },

    reset: function PDFPageView_reset(keepZoomLayer, keepAnnotations) {
      this.cancelRendering();
      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 {
        this.annotationLayer = null;
      }
      if (!currentZoomLayerNode) {
        if (this.canvas) {
          this.paintedViewportMap.delete(this.canvas);
          this.canvas.width = 0;
          this.canvas.height = 0;
          delete this.canvas;
        }
        this._resetZoomLayer();
      }
      if (this.svg) {
        this.paintedViewportMap.delete(this.svg);
        delete this.svg;
      }
      this.loadingIconDiv = document.createElement('div');
      this.loadingIconDiv.className = 'loadingIcon';
      div.appendChild(this.loadingIconDiv);
    },
    update: function PDFPageView_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 && _pdfjs.PDFJS.maxCanvasPixels > 0) {
        var outputScale = this.outputScale;
        if ((Math.floor(this.viewport.width) * outputScale.sx | 0) * (Math.floor(this.viewport.height) * outputScale.sy | 0) > _pdfjs.PDFJS.maxCanvasPixels) {
          isScalingRestricted = true;
        }
      }
      if (this.canvas) {
        if (_pdfjs.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.zoomLayer = this.canvas.parentNode;
          this.zoomLayer.style.position = 'absolute';
        }
      }
      if (this.zoomLayer) {
        this.cssTransform(this.zoomLayer.firstChild);
      }
      this.reset(true, true);
    },
    cancelRendering: function PDFPageView_cancelRendering() {
      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;
      }
    },
    updatePosition: function PDFPageView_updatePosition() {
      if (this.textLayer) {
        this.textLayer.render(TEXT_LAYER_RENDER_DELAY);
      }
    },
    cssTransform: function PDFPageView_transform(target, redrawAnnotations) {
      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 + ')';
      _pdfjs.CustomStyle.setProp('transform', target, cssTransform);
      if (this.textLayer) {
        var textLayerViewport = this.textLayer.viewport;
        var textRelativeRotation = this.viewport.rotation - textLayerViewport.rotation;
        var textAbsRotation = Math.abs(textRelativeRotation);
        var scale = width / textLayerViewport.width;
        if (textAbsRotation === 90 || textAbsRotation === 270) {
          scale = width / textLayerViewport.height;
        }
        var textLayerDiv = this.textLayer.textLayerDiv;
        var transX, transY;
        switch (textAbsRotation) {
          case 0:
            transX = transY = 0;
            break;
          case 90:
            transX = 0;
            transY = '-' + textLayerDiv.style.height;
            break;
          case 180:
            transX = '-' + textLayerDiv.style.width;
            transY = '-' + textLayerDiv.style.height;
            break;
          case 270:
            transX = '-' + textLayerDiv.style.width;
            transY = 0;
            break;
          default:
            console.error('Bad rotation value.');
            break;
        }
        _pdfjs.CustomStyle.setProp('transform', textLayerDiv, 'rotate(' + textAbsRotation + 'deg) ' + 'scale(' + scale + ', ' + scale + ') ' + 'translate(' + transX + ', ' + transY + ')');
        _pdfjs.CustomStyle.setProp('transformOrigin', textLayerDiv, '0% 0%');
      }
      if (redrawAnnotations && this.annotationLayer) {
        this.annotationLayer.render(this.viewport, 'display');
      }
    },
    get width() {
      return this.viewport.width;
    },
    get height() {
      return this.viewport.height;
    },
    getPagePoint: function PDFPageView_getPagePoint(x, y) {
      return this.viewport.convertToPdfPoint(x, y);
    },
    draw: function draw() {
      var _this = this;

      if (this.renderingState !== _pdf_rendering_queue.RenderingStates.INITIAL) {
        console.error('Must be in new state before drawing');
        this.reset();
      }
      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 === 'cancelled' || error instanceof _pdfjs.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) {
            pdfPage.getTextContent({ normalizeWhitespace: true }).then(function textContentResolved(textContent) {
              textLayer.setTextContent(textContent);
              textLayer.render(TEXT_LAYER_RENDER_DELAY);
            });
          }
        });
      }, function (reason) {
        return finishPaintTask(reason);
      });
      if (this.annotationLayerFactory) {
        if (!this.annotationLayer) {
          this.annotationLayer = this.annotationLayerFactory.createAnnotationLayerBuilder(div, pdfPage, this.renderInteractiveForms);
        }
        this.annotationLayer.render(this.viewport, 'display');
      }
      div.setAttribute('data-loaded', true);
      if (this.onBeforeDraw) {
        this.onBeforeDraw();
      }
      return resultPromise;
    },
    paintOnCanvas: function paintOnCanvas(canvasWrapper) {
      var renderCapability = (0, _pdfjs.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 = 'page' + this.id;
      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 (_pdfjs.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 (_pdfjs.PDFJS.maxCanvasPixels > 0) {
        var pixelsInViewport = viewport.width * viewport.height;
        var maxScale = Math.sqrt(_pdfjs.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;
    },
    paintOnSvg: function paintOnSvg(wrapper) {
      var _this2 = this;

      var cancelled = false;
      var ensureNotCancelled = function ensureNotCancelled() {
        if (cancelled) {
          if (_pdfjs.PDFJS.pdfjsNext) {
            throw new _pdfjs.RenderingCancelledException('Rendering cancelled, page ' + _this2.id, 'svg');
          } else {
            throw 'cancelled';
          }
        }
      };
      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 _pdfjs.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;
        }
      };
    },

    setPageLabel: function PDFView_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');
      }
    }
  };
  return PDFPageView;
}();
exports.PDFPageView = PDFPageView;

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

"use strict";


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

var _dom_events = __w_pdfjs_require__(2);

var _pdfjs = __w_pdfjs_require__(0);

var EXPAND_DIVS_TIMEOUT = 300;
var TextLayerBuilder = function TextLayerBuilderClosure() {
  function TextLayerBuilder(options) {
    this.textLayerDiv = options.textLayerDiv;
    this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
    this.textContent = null;
    this.renderingDone = false;
    this.pageIdx = options.pageIndex;
    this.pageNumber = this.pageIdx + 1;
    this.matches = [];
    this.viewport = options.viewport;
    this.textDivs = [];
    this.findController = options.findController || null;
    this.textLayerRenderTask = null;
    this.enhanceTextSelection = options.enhanceTextSelection;
    this._bindMouse();
  }
  TextLayerBuilder.prototype = {
    _finishRendering: function TextLayerBuilder_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
      });
    },
    render: function TextLayerBuilder_render(timeout) {
      var _this = this;

      if (!this.textContent || this.renderingDone) {
        return;
      }
      this.cancel();
      this.textDivs = [];
      var textLayerFrag = document.createDocumentFragment();
      this.textLayerRenderTask = (0, _pdfjs.renderTextLayer)({
        textContent: this.textContent,
        container: textLayerFrag,
        viewport: this.viewport,
        textDivs: this.textDivs,
        timeout: timeout,
        enhanceTextSelection: this.enhanceTextSelection
      });
      this.textLayerRenderTask.promise.then(function () {
        _this.textLayerDiv.appendChild(textLayerFrag);
        _this._finishRendering();
        _this.updateMatches();
      }, function (reason) {});
    },
    cancel: function TextLayerBuilder_cancel() {
      if (this.textLayerRenderTask) {
        this.textLayerRenderTask.cancel();
        this.textLayerRenderTask = null;
      }
    },
    setTextContent: function TextLayerBuilder_setTextContent(textContent) {
      this.cancel();
      this.textContent = textContent;
    },
    convertMatches: function TextLayerBuilder_convertMatches(matches, matchesLength) {
      var i = 0;
      var iIndex = 0;
      var bidiTexts = this.textContent.items;
      var end = bidiTexts.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 + bidiTexts[i].str.length) {
          iIndex += bidiTexts[i].str.length;
          i++;
        }
        if (i === bidiTexts.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 + bidiTexts[i].str.length) {
          iIndex += bidiTexts[i].str.length;
          i++;
        }
        match.end = {
          divIdx: i,
          offset: matchIdx - iIndex
        };
        ret.push(match);
      }
      return ret;
    },
    renderMatches: function TextLayerBuilder_renderMatches(matches) {
      if (matches.length === 0) {
        return;
      }
      var bidiTexts = this.textContent.items;
      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 = bidiTexts[divIdx].str.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);
      }
    },
    updateMatches: function TextLayerBuilder_updateMatches() {
      if (!this.renderingDone) {
        return;
      }
      var matches = this.matches;
      var textDivs = this.textDivs;
      var bidiTexts = this.textContent.items;
      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 = bidiTexts[n].str;
          div.className = '';
        }
        clearedUntilDivIdx = match.end.divIdx + 1;
      }
      if (this.findController === null || !this.findController.active) {
        return;
      }
      var pageMatches, pageMatchesLength;
      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);
    },
    _bindMouse: function TextLayerBuilder_bindMouse() {
      var div = this.textLayerDiv;
      var self = this;
      var expandDivsTimer = null;
      div.addEventListener('mousedown', function (e) {
        if (self.enhanceTextSelection && self.textLayerRenderTask) {
          self.textLayerRenderTask.expandTextDivs(true);
          if (expandDivsTimer) {
            clearTimeout(expandDivsTimer);
            expandDivsTimer = null;
          }
          return;
        }
        var end = div.querySelector('.endOfContent');
        if (!end) {
          return;
        }
        var adjustTop = e.target !== div;
        adjustTop = adjustTop && window.getComputedStyle(end).getPropertyValue('-moz-user-select') !== 'none';
        if (adjustTop) {
          var divBounds = div.getBoundingClientRect();
          var r = Math.max(0, (e.pageY - divBounds.top) / divBounds.height);
          end.style.top = (r * 100).toFixed(2) + '%';
        }
        end.classList.add('active');
      });
      div.addEventListener('mouseup', function (e) {
        if (self.enhanceTextSelection && self.textLayerRenderTask) {
          expandDivsTimer = setTimeout(function () {
            if (self.textLayerRenderTask) {
              self.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;
}();
function DefaultTextLayerFactory() {}
DefaultTextLayerFactory.prototype = {
  createTextLayerBuilder: 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
    });
  }
};
exports.TextLayerBuilder = TextLayerBuilder;
exports.DefaultTextLayerFactory = DefaultTextLayerFactory;

/***/ }),
/* 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.DownloadManager = undefined;

var _pdfjs = __w_pdfjs_require__(0);

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

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

"use strict";


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

var _pdfjs = __w_pdfjs_require__(0);

var _ui_utils = __w_pdfjs_require__(1);

var FindStates = {
  FIND_FOUND: 0,
  FIND_NOTFOUND: 1,
  FIND_WRAPPED: 2,
  FIND_PENDING: 3
};
var FIND_SCROLL_OFFSET_TOP = -50;
var FIND_SCROLL_OFFSET_LEFT = -400;
var CHARACTERS_TO_NORMALIZE = {
  '\u2018': '\'',
  '\u2019': '\'',
  '\u201A': '\'',
  '\u201B': '\'',
  '\u201C': '"',
  '\u201D': '"',
  '\u201E': '"',
  '\u201F': '"',
  '\xBC': '1/4',
  '\xBD': '1/2',
  '\xBE': '3/4'
};
var PDFFindController = function PDFFindControllerClosure() {
  function PDFFindController(options) {
    this.pdfViewer = options.pdfViewer || null;
    this.onUpdateResultsCount = null;
    this.onUpdateState = null;
    this.reset();
    var replace = Object.keys(CHARACTERS_TO_NORMALIZE).join('');
    this.normalizationRegex = new RegExp('[' + replace + ']', 'g');
  }
  PDFFindController.prototype = {
    reset: function PDFFindController_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;
      });
    },
    normalize: function PDFFindController_normalize(text) {
      return text.replace(this.normalizationRegex, function (ch) {
        return CHARACTERS_TO_NORMALIZE[ch];
      });
    },
    _prepareMatches: function PDFFindController_prepareMatches(matchesWithLength, matches, matchesLength) {
      function isSubTerm(matchesWithLength, currentIndex) {
        var currentElem, prevElem, nextElem;
        currentElem = matchesWithLength[currentIndex];
        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--) {
          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;
      }
      var i, len;
      matchesWithLength.sort(function (a, b) {
        return a.match === b.match ? a.matchLength - b.matchLength : a.match - b.match;
      });
      for (i = 0, len = matchesWithLength.length; i < len; i++) {
        if (isSubTerm(matchesWithLength, i)) {
          continue;
        }
        matches.push(matchesWithLength[i].match);
        matchesLength.push(matchesWithLength[i].matchLength);
      }
    },
    calcFindPhraseMatch: function PDFFindController_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;
    },
    calcFindWordMatch: function PDFFindController_calcFindWordMatch(query, pageIndex, pageContent) {
      var matchesWithLength = [];
      var queryArray = query.match(/\S+/g);
      var subquery, subqueryLen, matchIdx;
      for (var i = 0, len = queryArray.length; i < len; i++) {
        subquery = queryArray[i];
        subqueryLen = subquery.length;
        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]);
    },
    calcFindMatch: function PDFFindController_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();
      }
    },
    extractText: 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, _pdfjs.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);
          });
        });
      };

      for (var i = 0, ii = this.pdfViewer.pagesCount; i < ii; i++) {
        _loop(i, ii);
      }
    },

    executeCommand: function PDFFindController_executeCommand(cmd, state) {
      var _this3 = this;

      if (this.state === null || cmd !== 'findagain') {
        this.dirtyMatch = true;
      }
      this.state = state;
      this.updateUIState(FindStates.FIND_PENDING);
      this._firstPagePromise.then(function () {
        _this3.extractText();
        clearTimeout(_this3.findTimeout);
        if (cmd === 'find') {
          _this3.findTimeout = setTimeout(_this3.nextMatch.bind(_this3), 250);
        } else {
          _this3.nextMatch();
        }
      });
    },
    updatePage: function PDFFindController_updatePage(index) {
      if (this.selected.pageIdx === index) {
        this.pdfViewer.currentPageNumber = index + 1;
      }
      var page = this.pdfViewer.getPageView(index);
      if (page.textLayer) {
        page.textLayer.updateMatches();
      }
    },
    nextMatch: function PDFFindController_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(FindStates.FIND_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();
    },
    matchesReady: function PDFFindController_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;
    },
    updateMatchPosition: function PDFFindController_updateMatchPosition(pageIndex, index, elements, beginIdx) {
      if (this.selected.matchIdx === index && this.selected.pageIdx === pageIndex) {
        var spot = {
          top: FIND_SCROLL_OFFSET_TOP,
          left: FIND_SCROLL_OFFSET_LEFT
        };
        (0, _ui_utils.scrollIntoView)(elements[beginIdx], spot, true);
      }
    },
    nextPageMatch: function PDFFindController_nextPageMatch() {
      if (this.resumePageIdx !== null) {
        console.error('There can only be one pending page.');
      }
      do {
        var pageIdx = this.offset.pageIdx;
        var matches = this.pageMatches[pageIdx];
        if (!matches) {
          this.resumePageIdx = pageIdx;
          break;
        }
      } while (!this.matchesReady(matches));
    },
    advanceOffsetPage: function PDFFindController_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;
      }
    },
    updateMatch: function PDFFindController_updateMatch(found) {
      var state = FindStates.FIND_NOTFOUND;
      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 ? FindStates.FIND_WRAPPED : FindStates.FIND_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);
      }
    },
    updateUIResultsCount: function PDFFindController_updateUIResultsCount() {
      if (this.onUpdateResultsCount) {
        this.onUpdateResultsCount(this.matchCount);
      }
    },
    updateUIState: function PDFFindController_updateUIState(state, previous) {
      if (this.onUpdateState) {
        this.onUpdateState(state, previous, this.matchCount);
      }
    }
  };
  return PDFFindController;
}();
exports.FindStates = FindStates;
exports.PDFFindController = PDFFindController;

/***/ }),
/* 10 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


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

var _dom_events = __w_pdfjs_require__(2);

function PDFHistory(options) {
  this.linkService = options.linkService;
  this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
  this.initialized = false;
  this.initialDestination = null;
  this.initialBookmark = null;
}
PDFHistory.prototype = {
  initialize: function pdfHistoryInitialize(fingerprint) {
    this.initialized = true;
    this.reInitialized = false;
    this.allowHashChange = true;
    this.historyUnlocked = true;
    this.isViewerInPresentationMode = false;
    this.previousHash = window.location.hash.substring(1);
    this.currentBookmark = '';
    this.currentPage = 0;
    this.updatePreviousBookmark = false;
    this.previousBookmark = '';
    this.previousPage = 0;
    this.nextHashParam = '';
    this.fingerprint = fingerprint;
    this.currentUid = this.uid = 0;
    this.current = {};
    var state = window.history.state;
    if (this._isStateObjectDefined(state)) {
      if (state.target.dest) {
        this.initialDestination = state.target.dest;
      } else {
        this.initialBookmark = state.target.hash;
      }
      this.currentUid = state.uid;
      this.uid = state.uid + 1;
      this.current = state.target;
    } else {
      if (state && state.fingerprint && this.fingerprint !== state.fingerprint) {
        this.reInitialized = true;
      }
      this._pushOrReplaceState({ fingerprint: this.fingerprint }, true);
    }
    var self = this;
    window.addEventListener('popstate', function pdfHistoryPopstate(evt) {
      if (!self.historyUnlocked) {
        return;
      }
      if (evt.state) {
        self._goTo(evt.state);
        return;
      }
      if (self.uid === 0) {
        var previousParams = self.previousHash && self.currentBookmark && self.previousHash !== self.currentBookmark ? {
          hash: self.currentBookmark,
          page: self.currentPage
        } : { page: 1 };
        replacePreviousHistoryState(previousParams, function () {
          updateHistoryWithCurrentHash();
        });
      } else {
        updateHistoryWithCurrentHash();
      }
    });
    function updateHistoryWithCurrentHash() {
      self.previousHash = window.location.hash.slice(1);
      self._pushToHistory({ hash: self.previousHash }, false, true);
      self._updatePreviousBookmark();
    }
    function replacePreviousHistoryState(params, callback) {
      self.historyUnlocked = false;
      self.allowHashChange = false;
      window.addEventListener('popstate', rewriteHistoryAfterBack);
      history.back();
      function rewriteHistoryAfterBack() {
        window.removeEventListener('popstate', rewriteHistoryAfterBack);
        window.addEventListener('popstate', rewriteHistoryAfterForward);
        self._pushToHistory(params, false, true);
        history.forward();
      }
      function rewriteHistoryAfterForward() {
        window.removeEventListener('popstate', rewriteHistoryAfterForward);
        self.allowHashChange = true;
        self.historyUnlocked = true;
        callback();
      }
    }
    function pdfHistoryBeforeUnload() {
      var previousParams = self._getPreviousParams(null, true);
      if (previousParams) {
        var replacePrevious = !self.current.dest && self.current.hash !== self.previousHash;
        self._pushToHistory(previousParams, false, replacePrevious);
        self._updatePreviousBookmark();
      }
      window.removeEventListener('beforeunload', pdfHistoryBeforeUnload);
    }
    window.addEventListener('beforeunload', pdfHistoryBeforeUnload);
    window.addEventListener('pageshow', function pdfHistoryPageShow(evt) {
      window.addEventListener('beforeunload', pdfHistoryBeforeUnload);
    });
    self.eventBus.on('presentationmodechanged', function (e) {
      self.isViewerInPresentationMode = e.active;
    });
  },
  clearHistoryState: function pdfHistory_clearHistoryState() {
    this._pushOrReplaceState(null, true);
  },
  _isStateObjectDefined: function pdfHistory_isStateObjectDefined(state) {
    return state && state.uid >= 0 && state.fingerprint && this.fingerprint === state.fingerprint && state.target && state.target.hash ? true : false;
  },
  _pushOrReplaceState: function pdfHistory_pushOrReplaceState(stateObj, replace) {
    if (replace) {
      window.history.replaceState(stateObj, '', document.URL);
    } else {
      window.history.pushState(stateObj, '', document.URL);
    }
  },
  get isHashChangeUnlocked() {
    if (!this.initialized) {
      return true;
    }
    return this.allowHashChange;
  },
  _updatePreviousBookmark: function pdfHistory_updatePreviousBookmark() {
    if (this.updatePreviousBookmark && this.currentBookmark && this.currentPage) {
      this.previousBookmark = this.currentBookmark;
      this.previousPage = this.currentPage;
      this.updatePreviousBookmark = false;
    }
  },
  updateCurrentBookmark: function pdfHistoryUpdateCurrentBookmark(bookmark, pageNum) {
    if (this.initialized) {
      this.currentBookmark = bookmark.substring(1);
      this.currentPage = pageNum | 0;
      this._updatePreviousBookmark();
    }
  },
  updateNextHashParam: function pdfHistoryUpdateNextHashParam(param) {
    if (this.initialized) {
      this.nextHashParam = param;
    }
  },
  push: function pdfHistoryPush(params, isInitialBookmark) {
    if (!(this.initialized && this.historyUnlocked)) {
      return;
    }
    if (params.dest && !params.hash) {
      params.hash = this.current.hash && this.current.dest && this.current.dest === params.dest ? this.current.hash : this.linkService.getDestinationHash(params.dest).split('#')[1];
    }
    if (params.page) {
      params.page |= 0;
    }
    if (isInitialBookmark) {
      var target = window.history.state.target;
      if (!target) {
        this._pushToHistory(params, false);
        this.previousHash = window.location.hash.substring(1);
      }
      this.updatePreviousBookmark = this.nextHashParam ? false : true;
      if (target) {
        this._updatePreviousBookmark();
      }
      return;
    }
    if (this.nextHashParam) {
      if (this.nextHashParam === params.hash) {
        this.nextHashParam = null;
        this.updatePreviousBookmark = true;
        return;
      }
      this.nextHashParam = null;
    }
    if (params.hash) {
      if (this.current.hash) {
        if (this.current.hash !== params.hash) {
          this._pushToHistory(params, true);
        } else {
          if (!this.current.page && params.page) {
            this._pushToHistory(params, false, true);
          }
          this.updatePreviousBookmark = true;
        }
      } else {
        this._pushToHistory(params, true);
      }
    } else if (this.current.page && params.page && this.current.page !== params.page) {
      this._pushToHistory(params, true);
    }
  },
  _getPreviousParams: function pdfHistory_getPreviousParams(onlyCheckPage, beforeUnload) {
    if (!(this.currentBookmark && this.currentPage)) {
      return null;
    } else if (this.updatePreviousBookmark) {
      this.updatePreviousBookmark = false;
    }
    if (this.uid > 0 && !(this.previousBookmark && this.previousPage)) {
      return null;
    }
    if (!this.current.dest && !onlyCheckPage || beforeUnload) {
      if (this.previousBookmark === this.currentBookmark) {
        return null;
      }
    } else if (this.current.page || onlyCheckPage) {
      if (this.previousPage === this.currentPage) {
        return null;
      }
    } else {
      return null;
    }
    var params = {
      hash: this.currentBookmark,
      page: this.currentPage
    };
    if (this.isViewerInPresentationMode) {
      params.hash = null;
    }
    return params;
  },
  _stateObj: function pdfHistory_stateObj(params) {
    return {
      fingerprint: this.fingerprint,
      uid: this.uid,
      target: params
    };
  },
  _pushToHistory: function pdfHistory_pushToHistory(params, addPrevious, overwrite) {
    if (!this.initialized) {
      return;
    }
    if (!params.hash && params.page) {
      params.hash = 'page=' + params.page;
    }
    if (addPrevious && !overwrite) {
      var previousParams = this._getPreviousParams();
      if (previousParams) {
        var replacePrevious = !this.current.dest && this.current.hash !== this.previousHash;
        this._pushToHistory(previousParams, false, replacePrevious);
      }
    }
    this._pushOrReplaceState(this._stateObj(params), overwrite || this.uid === 0);
    this.currentUid = this.uid++;
    this.current = params;
    this.updatePreviousBookmark = true;
  },
  _goTo: function pdfHistory_goTo(state) {
    if (!(this.initialized && this.historyUnlocked && this._isStateObjectDefined(state))) {
      return;
    }
    if (!this.reInitialized && state.uid < this.currentUid) {
      var previousParams = this._getPreviousParams(true);
      if (previousParams) {
        this._pushToHistory(this.current, false);
        this._pushToHistory(previousParams, false);
        this.currentUid = state.uid;
        window.history.back();
        return;
      }
    }
    this.historyUnlocked = false;
    if (state.target.dest) {
      this.linkService.navigateTo(state.target.dest);
    } else {
      this.linkService.setHash(state.target.hash);
    }
    this.currentUid = state.uid;
    if (state.uid > this.uid) {
      this.uid = state.uid;
    }
    this.current = state.target;
    this.updatePreviousBookmark = true;
    var currentHash = window.location.hash.substring(1);
    if (this.previousHash !== currentHash) {
      this.allowHashChange = false;
    }
    this.previousHash = currentHash;
    this.historyUnlocked = true;
  },
  back: function pdfHistoryBack() {
    this.go(-1);
  },
  forward: function pdfHistoryForward() {
    this.go(1);
  },
  go: function pdfHistoryGo(direction) {
    if (this.initialized && this.historyUnlocked) {
      var state = window.history.state;
      if (direction === -1 && state && state.uid > 0) {
        window.history.back();
      } else if (direction === 1 && state && state.uid < this.uid - 1) {
        window.history.forward();
      }
    }
  }
};
exports.PDFHistory = PDFHistory;

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

"use strict";


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

var _pdfjs = __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__(5);

var _pdf_link_service = __w_pdfjs_require__(3);

var _text_layer_builder = __w_pdfjs_require__(6);

var PresentationModeState = {
  UNKNOWN: 0,
  NORMAL: 1,
  CHANGING: 2,
  FULLSCREEN: 3
};
var DEFAULT_CACHE_SIZE = 10;
var PDFViewer = function pdfViewer() {
  function PDFPageViewBuffer(size) {
    var data = [];
    this.push = function cachePush(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;
  }
  function PDFViewer(options) {
    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.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 = PresentationModeState.UNKNOWN;
    this._resetView();
    if (this.removePageBorders) {
      this.viewer.classList.add('removePageBorders');
    }
  }
  PDFViewer.prototype = {
    get pagesCount() {
      return this._pages.length;
    },
    getPageView: function getPageView(index) {
      return this._pages[index];
    },

    get pageViewsReady() {
      return this._pageViewsReady;
    },
    get currentPageNumber() {
      return this._currentPageNumber;
    },
    set currentPageNumber(val) {
      if ((val | 0) !== val) {
        throw new Error('Invalid page number.');
      }
      if (!this.pdfDocument) {
        this._currentPageNumber = val;
        return;
      }
      this._setCurrentPageNumber(val, true);
    },
    _setCurrentPageNumber: function PDFViewer_setCurrentPageNumber(val, resetCurrentPageView) {
      if (this._currentPageNumber === val) {
        if (resetCurrentPageView) {
          this._resetCurrentPageView();
        }
        return;
      }
      if (!(0 < val && val <= this.pagesCount)) {
        console.error('PDFViewer_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();
      }
    },
    get currentPageLabel() {
      return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
    },
    set currentPageLabel(val) {
      var pageNumber = val | 0;
      if (this._pageLabels) {
        var i = this._pageLabels.indexOf(val);
        if (i >= 0) {
          pageNumber = i + 1;
        }
      }
      this.currentPageNumber = pageNumber;
    },
    get currentScale() {
      return this._currentScale !== _ui_utils.UNKNOWN_SCALE ? this._currentScale : _ui_utils.DEFAULT_SCALE;
    },
    set currentScale(val) {
      if (isNaN(val)) {
        throw new Error('Invalid numeric scale');
      }
      if (!this.pdfDocument) {
        this._currentScale = val;
        this._currentScaleValue = val !== _ui_utils.UNKNOWN_SCALE ? val.toString() : null;
        return;
      }
      this._setScale(val, false);
    },
    get currentScaleValue() {
      return this._currentScaleValue;
    },
    set currentScaleValue(val) {
      if (!this.pdfDocument) {
        this._currentScale = isNaN(val) ? _ui_utils.UNKNOWN_SCALE : val;
        this._currentScaleValue = val.toString();
        return;
      }
      this._setScale(val, false);
    },
    get pagesRotation() {
      return this._pagesRotation;
    },
    set pagesRotation(rotation) {
      if (!(typeof rotation === 'number' && rotation % 90 === 0)) {
        throw new Error('Invalid pages rotation angle.');
      }
      this._pagesRotation = rotation;
      if (!this.pdfDocument) {
        return;
      }
      for (var i = 0, l = this._pages.length; i < l; i++) {
        var pageView = this._pages[i];
        pageView.update(pageView.scale, rotation);
      }
      this._setScale(this._currentScaleValue, true);
      if (this.defaultRenderingQueue) {
        this.update();
      }
    },
    setDocument: 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, _pdfjs.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, _pdfjs.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;
      return 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 (!_pdfjs.PDFJS.disableTextLayer) {
            textLayerFactory = _this;
          }
          var pageView = new _pdf_page_view.PDFPageView({
            container: _this.viewer,
            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
          });
          bindOnAfterAndBeforeDraw(pageView);
          _this._pages.push(pageView);
        }
        onePageRenderedCapability.promise.then(function () {
          if (_pdfjs.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();
              }
            });
          };

          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();
        }
      });
    },

    setPageLabels: function PDFViewer_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('PDFViewer_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);
      }
    },
    _resetView: 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 = '';
    },

    _scrollUpdate: function PDFViewer_scrollUpdate() {
      if (this.pagesCount === 0) {
        return;
      }
      this.update();
      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        this._pages[i].updatePosition();
      }
    },
    _setScaleDispatchEvent: function pdfViewer_setScaleDispatchEvent(newScale, newValue, preset) {
      var arg = {
        source: this,
        scale: newScale,
        presetValue: preset ? newValue : undefined
      };
      this.eventBus.dispatch('scalechanging', arg);
      this.eventBus.dispatch('scalechange', arg);
    },
    _setScaleUpdatePages: function pdfViewer_setScaleUpdatePages(newScale, newValue, noScroll, preset) {
      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;
        if (this._location && !_pdfjs.PDFJS.ignoreCurrentPositionOnZoom && !(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();
      }
    },
    _setScale: function PDFViewer_setScale(value, noScroll) {
      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('PDFViewer_setScale: "' + value + '" is an unknown zoom value.');
            return;
        }
        this._setScaleUpdatePages(scale, value, noScroll, true);
      }
    },
    _resetCurrentPageView: function _resetCurrentPageView() {
      if (this.isInPresentationMode) {
        this._setScale(this._currentScaleValue, true);
      }
      var pageView = this._pages[this._currentPageNumber - 1];
      (0, _ui_utils.scrollIntoView)(pageView.div);
    },

    scrollPageIntoView: function PDFViewer_scrollPageIntoView(params) {
      if (!this.pdfDocument) {
        return;
      }
      if (arguments.length > 1 || typeof params === 'number') {
        console.warn('Call of scrollPageIntoView() with obsolete signature.');
        var paramObj = {};
        if (typeof params === 'number') {
          paramObj.pageNumber = params;
        }
        if (arguments[1] instanceof Array) {
          paramObj.destArray = arguments[1];
        }
        params = paramObj;
      }
      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('PDFViewer_scrollPageIntoView: ' + 'Invalid "pageNumber" parameter.');
        return;
      }
      var x = 0,
          y = 0;
      var width = 0,
          height = 0,
          widthScale,
          heightScale;
      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('PDFViewer_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]) {
        (0, _ui_utils.scrollIntoView)(pageView.div);
        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);
      }
      (0, _ui_utils.scrollIntoView)(pageView.div, {
        left: left,
        top: top
      });
    },
    _updateLocation: 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,
        pdfOpenParams: pdfOpenParams
      };
    },

    update: function PDFViewer_update() {
      var visible = this._getVisiblePages();
      var visiblePages = visible.views;
      if (visiblePages.length === 0) {
        return;
      }
      var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * visiblePages.length + 1);
      this._buffer.resize(suggestedCacheSize);
      this.renderingQueue.renderHighestPriority(visible);
      var currentId = this._currentPageNumber;
      var firstPage = visible.first;
      for (var i = 0, ii = visiblePages.length, stillFullyVisible = false; i < ii; ++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(firstPage);
      this.eventBus.dispatch('updateviewarea', {
        source: this,
        location: this._location
      });
    },
    containsElement: function containsElement(element) {
      return this.container.contains(element);
    },
    focus: function focus() {
      this.container.focus();
    },

    get isInPresentationMode() {
      return this.presentationModeState === PresentationModeState.FULLSCREEN;
    },
    get isChangingPresentationMode() {
      return this.presentationModeState === PresentationModeState.CHANGING;
    },
    get isHorizontalScrollbarEnabled() {
      return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth;
    },
    _getVisiblePages: function _getVisiblePages() {
      if (!this.isInPresentationMode) {
        return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true);
      }
      var visible = [];
      var currentPage = this._pages[this._currentPageNumber - 1];
      visible.push({
        id: currentPage.id,
        view: currentPage
      });
      return {
        first: currentPage,
        last: currentPage,
        views: visible
      };
    },
    cleanup: 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();
        }
      }
    },

    _cancelRendering: function PDFViewer_cancelRendering() {
      for (var i = 0, ii = this._pages.length; i < ii; i++) {
        if (this._pages[i]) {
          this._pages[i].cancelRendering();
        }
      }
    },
    _ensurePdfPageLoaded: 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;
      });
      this._pagesRequests[pageNumber] = promise;
      return promise;
    },
    forceRendering: 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;
    },
    getPageTextContent: function getPageTextContent(pageIndex) {
      return this.pdfDocument.getPage(pageIndex + 1).then(function (page) {
        return page.getTextContent({ normalizeWhitespace: true });
      });
    },
    createTextLayerBuilder: 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
      });
    },
    createAnnotationLayerBuilder: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
      var renderInteractiveForms = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

      return new _annotation_layer_builder.AnnotationLayerBuilder({
        pageDiv: pageDiv,
        pdfPage: pdfPage,
        renderInteractiveForms: renderInteractiveForms,
        linkService: this.linkService,
        downloadManager: this.downloadManager
      });
    },
    setFindController: function setFindController(findController) {
      this.findController = findController;
    },
    getPagesOverview: 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
        };
      });
    }
  };
  return PDFViewer;
}();
exports.PresentationModeState = PresentationModeState;
exports.PDFViewer = PDFViewer;

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

"use strict";


var pdfjsLib = __w_pdfjs_require__(0);
var pdfjsWebPDFViewer = __w_pdfjs_require__(11);
var pdfjsWebPDFPageView = __w_pdfjs_require__(5);
var pdfjsWebPDFLinkService = __w_pdfjs_require__(3);
var pdfjsWebTextLayerBuilder = __w_pdfjs_require__(6);
var pdfjsWebAnnotationLayerBuilder = __w_pdfjs_require__(4);
var pdfjsWebPDFHistory = __w_pdfjs_require__(10);
var pdfjsWebPDFFindController = __w_pdfjs_require__(9);
var pdfjsWebUIUtils = __w_pdfjs_require__(1);
var pdfjsWebDownloadManager = __w_pdfjs_require__(8);
var PDFJS = pdfjsLib.PDFJS;
PDFJS.PDFViewer = pdfjsWebPDFViewer.PDFViewer;
PDFJS.PDFPageView = pdfjsWebPDFPageView.PDFPageView;
PDFJS.PDFLinkService = pdfjsWebPDFLinkService.PDFLinkService;
PDFJS.TextLayerBuilder = pdfjsWebTextLayerBuilder.TextLayerBuilder;
PDFJS.DefaultTextLayerFactory = pdfjsWebTextLayerBuilder.DefaultTextLayerFactory;
PDFJS.AnnotationLayerBuilder = pdfjsWebAnnotationLayerBuilder.AnnotationLayerBuilder;
PDFJS.DefaultAnnotationLayerFactory = pdfjsWebAnnotationLayerBuilder.DefaultAnnotationLayerFactory;
PDFJS.PDFHistory = pdfjsWebPDFHistory.PDFHistory;
PDFJS.PDFFindController = pdfjsWebPDFFindController.PDFFindController;
PDFJS.EventBus = pdfjsWebUIUtils.EventBus;
PDFJS.DownloadManager = pdfjsWebDownloadManager.DownloadManager;
PDFJS.ProgressBar = pdfjsWebUIUtils.ProgressBar;
exports.PDFJS = PDFJS;

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