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

"use strict";

{
 module.exports = window['pdfjs-dist/build/pdf'];
}

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

"use strict";

var pdfjsLib = __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 = document.mozL10n || document.webL10n;
var PDFJS = pdfjsLib.PDFJS;
PDFJS.disableFullscreen = PDFJS.disableFullscreen === undefined ? false : PDFJS.disableFullscreen;
PDFJS.useOnlyCssZoom = PDFJS.useOnlyCssZoom === undefined ? false : PDFJS.useOnlyCssZoom;
PDFJS.maxCanvasPixels = PDFJS.maxCanvasPixels === undefined ? 16777216 : PDFJS.maxCanvasPixels;
PDFJS.disableHistory = PDFJS.disableHistory === undefined ? false : PDFJS.disableHistory;
PDFJS.disableTextLayer = PDFJS.disableTextLayer === undefined ? false : PDFJS.disableTextLayer;
PDFJS.ignoreCurrentPositionOnZoom = PDFJS.ignoreCurrentPositionOnZoom === undefined ? false : PDFJS.ignoreCurrentPositionOnZoom;
PDFJS.locale = PDFJS.locale === undefined ? navigator.language : 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 getPDFFileNameFromURL(url) {
 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 || 'document.pdf';
}
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;
}
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.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";

var uiUtils = __w_pdfjs_require__(1);
var EventBus = uiUtils.EventBus;
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 EventBus();
 attachDOMEventsToEventBus(globalEventBus);
 return globalEventBus;
}
exports.attachDOMEventsToEventBus = attachDOMEventsToEventBus;
exports.getGlobalEventBus = getGlobalEventBus;

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

"use strict";

var uiUtils = __w_pdfjs_require__(1);
var domEvents = __w_pdfjs_require__(2);
var parseQueryString = uiUtils.parseQueryString;
var PageNumberRegExp = /^\d+$/;
function isPageNumber(str) {
 return PageNumberRegExp.test(str);
}
var PDFLinkService = function PDFLinkServiceClosure() {
 function PDFLinkService(options) {
  options = options || {};
  this.eventBus = options.eventBus || domEvents.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 PDFLinkService_navigateTo(dest) {
   var destString = '';
   var self = this;
   var goToDestination = function (destRef) {
    var pageNumber;
    if (destRef instanceof Object) {
     pageNumber = self._cachedPageNumber(destRef);
    } else if ((destRef | 0) === destRef) {
     pageNumber = destRef + 1;
    } else {
     console.error('PDFLinkService_navigateTo: "' + destRef + '" is not a valid destination reference.');
     return;
    }
    if (pageNumber) {
     if (pageNumber < 1 || pageNumber > self.pagesCount) {
      console.error('PDFLinkService_navigateTo: "' + pageNumber + '" is a non-existent page number.');
      return;
     }
     self.pdfViewer.scrollPageIntoView({
      pageNumber: pageNumber,
      destArray: dest
     });
     if (self.pdfHistory) {
      self.pdfHistory.push({
       dest: dest,
       hash: destString,
       page: pageNumber
      });
     }
    } else {
     self.pdfDocument.getPageIndex(destRef).then(function (pageIndex) {
      self.cachePageRef(pageIndex + 1, destRef);
      goToDestination(destRef);
     }).catch(function () {
      console.error('PDFLinkService_navigateTo: "' + destRef + '" is not a valid page reference.');
     });
    }
   };
   var destinationPromise;
   if (typeof dest === 'string') {
    destString = dest;
    destinationPromise = this.pdfDocument.getDestination(dest);
   } else {
    destinationPromise = Promise.resolve(dest);
   }
   destinationPromise.then(function (destination) {
    dest = destination;
    if (!(destination instanceof Array)) {
     console.error('PDFLinkService_navigateTo: "' + destination + '" is not a valid destination array.');
     return;
    }
    goToDestination(destination[0]);
   });
  },
  getDestinationHash: function PDFLinkService_getDestinationHash(dest) {
   if (typeof dest === 'string') {
    return this.getAnchorUrl('#' + (isPageNumber(dest) ? 'nameddest=' : '') + 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 = 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 (isPageNumber(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 (params) {
   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 === '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 === '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 (dest) {
  },
  getDestinationHash: function (dest) {
   return '#';
  },
  getAnchorUrl: function (hash) {
   return '#';
  },
  setHash: function (hash) {
  },
  executeNamedAction: function (action) {
  },
  onFileAttachmentAnnotation: function (params) {
  },
  cachePageRef: function (pageNum, pageRef) {
  }
 };
 return SimpleLinkService;
}();
exports.PDFLinkService = PDFLinkService;
exports.SimpleLinkService = SimpleLinkService;

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

"use strict";

var uiUtils = __w_pdfjs_require__(1);
var pdfLinkService = __w_pdfjs_require__(3);
var pdfjsLib = __w_pdfjs_require__(0);
var mozL10n = uiUtils.mozL10n;
var SimpleLinkService = pdfLinkService.SimpleLinkService;
var AnnotationLayerBuilder = function AnnotationLayerBuilderClosure() {
 function AnnotationLayerBuilder(options) {
  this.pageDiv = options.pageDiv;
  this.pdfPage = options.pdfPage;
  this.renderInteractiveForms = options.renderInteractiveForms;
  this.linkService = options.linkService;
  this.downloadManager = options.downloadManager;
  this.div = null;
 }
 AnnotationLayerBuilder.prototype = {
  render: function AnnotationLayerBuilder_render(viewport, intent) {
   var self = this;
   var parameters = { intent: intent === undefined ? 'display' : intent };
   this.pdfPage.getAnnotations(parameters).then(function (annotations) {
    viewport = viewport.clone({ dontFlip: true });
    parameters = {
     viewport: viewport,
     div: self.div,
     annotations: annotations,
     page: self.pdfPage,
     renderInteractiveForms: self.renderInteractiveForms,
     linkService: self.linkService,
     downloadManager: self.downloadManager
    };
    if (self.div) {
     pdfjsLib.AnnotationLayer.update(parameters);
    } else {
     if (annotations.length === 0) {
      return;
     }
     self.div = document.createElement('div');
     self.div.className = 'annotationLayer';
     self.pageDiv.appendChild(self.div);
     parameters.div = self.div;
     pdfjsLib.AnnotationLayer.render(parameters);
     if (typeof mozL10n !== 'undefined') {
      mozL10n.translate(self.div);
     }
    }
   });
  },
  hide: function AnnotationLayerBuilder_hide() {
   if (!this.div) {
    return;
   }
   this.div.setAttribute('hidden', 'true');
  }
 };
 return AnnotationLayerBuilder;
}();
function DefaultAnnotationLayerFactory() {
}
DefaultAnnotationLayerFactory.prototype = {
 createAnnotationLayerBuilder: function (pageDiv, pdfPage, renderInteractiveForms) {
  return new AnnotationLayerBuilder({
   pageDiv: pageDiv,
   pdfPage: pdfPage,
   renderInteractiveForms: renderInteractiveForms,
   linkService: new SimpleLinkService()
  });
 }
};
exports.AnnotationLayerBuilder = AnnotationLayerBuilder;
exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;

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

"use strict";

var uiUtils = __w_pdfjs_require__(1);
var pdfRenderingQueue = __w_pdfjs_require__(7);
var domEvents = __w_pdfjs_require__(2);
var pdfjsLib = __w_pdfjs_require__(0);
var CSS_UNITS = uiUtils.CSS_UNITS;
var DEFAULT_SCALE = uiUtils.DEFAULT_SCALE;
var getOutputScale = uiUtils.getOutputScale;
var approximateFraction = uiUtils.approximateFraction;
var roundToDivide = uiUtils.roundToDivide;
var RendererType = uiUtils.RendererType;
var RenderingStates = pdfRenderingQueue.RenderingStates;
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 || DEFAULT_SCALE;
  this.viewport = defaultViewport;
  this.pdfPageRotate = defaultViewport.rotation;
  this.hasRestrictedScaling = false;
  this.enhanceTextSelection = enhanceTextSelection;
  this.renderInteractiveForms = renderInteractiveForms;
  this.eventBus = options.eventBus || domEvents.getGlobalEventBus();
  this.renderingQueue = renderingQueue;
  this.textLayerFactory = textLayerFactory;
  this.annotationLayerFactory = annotationLayerFactory;
  this.renderer = options.renderer || RendererType.CANVAS;
  this.paintTask = null;
  this.paintedViewportMap = new WeakMap();
  this.renderingState = 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 * CSS_UNITS, totalRotation);
   this.stats = pdfPage.stats;
   this.reset();
  },
  destroy: function PDFPageView_destroy() {
   this.zoomLayer = null;
   this.reset();
   if (this.pdfPage) {
    this.pdfPage.cleanup();
   }
  },
  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 (this.canvas && !currentZoomLayerNode) {
    this.paintedViewportMap.delete(this.canvas);
    this.canvas.width = 0;
    this.canvas.height = 0;
    delete this.canvas;
   }
   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 * CSS_UNITS,
    rotation: totalRotation
   });
   if (this.svg) {
    this.cssTransform(this.svg, true);
    this.eventBus.dispatch('pagerendered', {
     source: this,
     pageNumber: this.id,
     cssTransform: true
    });
    return;
   }
   var isScalingRestricted = false;
   if (this.canvas && pdfjsLib.PDFJS.maxCanvasPixels > 0) {
    var outputScale = this.outputScale;
    if ((Math.floor(this.viewport.width) * outputScale.sx | 0) * (Math.floor(this.viewport.height) * outputScale.sy | 0) > pdfjsLib.PDFJS.maxCanvasPixels) {
     isScalingRestricted = true;
    }
   }
   if (this.canvas) {
    if (pdfjsLib.PDFJS.useOnlyCssZoom || this.hasRestrictedScaling && isScalingRestricted) {
     this.cssTransform(this.canvas, true);
     this.eventBus.dispatch('pagerendered', {
      source: this,
      pageNumber: this.id,
      cssTransform: true
     });
     return;
    }
    if (!this.zoomLayer) {
     this.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 = 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 CustomStyle = pdfjsLib.CustomStyle;
   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 + ')';
   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;
    }
    CustomStyle.setProp('transform', textLayerDiv, 'rotate(' + textAbsRotation + 'deg) ' + 'scale(' + scale + ', ' + scale + ') ' + 'translate(' + transX + ', ' + transY + ')');
    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 PDFPageView_draw() {
   if (this.renderingState !== RenderingStates.INITIAL) {
    console.error('Must be in new state before drawing');
    this.reset();
   }
   this.renderingState = RenderingStates.RUNNING;
   var self = this;
   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 textLayerDiv = null;
   var textLayer = null;
   if (this.textLayerFactory) {
    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 (!self.renderingQueue.isHighestPriority(self)) {
      self.renderingState = RenderingStates.PAUSED;
      self.resume = function resumeCallback() {
       self.renderingState = RenderingStates.RUNNING;
       cont();
      };
      return;
     }
     cont();
    };
   }
   var finishPaintTask = function finishPaintTask(error) {
    if (paintTask === self.paintTask) {
     self.paintTask = null;
    }
    if (error === 'cancelled') {
     self.error = null;
     return Promise.resolve(undefined);
    }
    self.renderingState = RenderingStates.FINISHED;
    if (self.loadingIconDiv) {
     div.removeChild(self.loadingIconDiv);
     delete self.loadingIconDiv;
    }
    if (self.zoomLayer) {
     var zoomLayerCanvas = self.zoomLayer.firstChild;
     self.paintedViewportMap.delete(zoomLayerCanvas);
     zoomLayerCanvas.width = 0;
     zoomLayerCanvas.height = 0;
     if (div.contains(self.zoomLayer)) {
      div.removeChild(self.zoomLayer);
     }
     self.zoomLayer = null;
    }
    self.error = error;
    self.stats = pdfPage.stats;
    if (self.onAfterDraw) {
     self.onAfterDraw();
    }
    self.eventBus.dispatch('pagerendered', {
     source: self,
     pageNumber: self.id,
     cssTransform: false
    });
    if (error) {
     return Promise.reject(error);
    }
    return Promise.resolve(undefined);
   };
   var paintTask = this.renderer === 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 (canvasWrapper) {
   var resolveRenderPromise, rejectRenderPromise;
   var promise = new Promise(function (resolve, reject) {
    resolveRenderPromise = resolve;
    rejectRenderPromise = reject;
   });
   var result = {
    promise: promise,
    onRenderContinue: function (cont) {
     cont();
    },
    cancel: function () {
     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 () {
    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 = getOutputScale(ctx);
   this.outputScale = outputScale;
   if (pdfjsLib.PDFJS.useOnlyCssZoom) {
    var actualSizeViewport = viewport.clone({ scale: CSS_UNITS });
    outputScale.sx *= actualSizeViewport.width / viewport.width;
    outputScale.sy *= actualSizeViewport.height / viewport.height;
    outputScale.scaled = true;
   }
   if (pdfjsLib.PDFJS.maxCanvasPixels > 0) {
    var pixelsInViewport = viewport.width * viewport.height;
    var maxScale = Math.sqrt(pdfjsLib.PDFJS.maxCanvasPixels / pixelsInViewport);
    if (outputScale.sx > maxScale || outputScale.sy > maxScale) {
     outputScale.sx = maxScale;
     outputScale.sy = maxScale;
     outputScale.scaled = true;
     this.hasRestrictedScaling = true;
    } else {
     this.hasRestrictedScaling = false;
    }
   }
   var sfx = approximateFraction(outputScale.sx);
   var sfy = approximateFraction(outputScale.sy);
   canvas.width = roundToDivide(viewport.width * outputScale.sx, sfx[0]);
   canvas.height = roundToDivide(viewport.height * outputScale.sy, sfy[0]);
   canvas.style.width = roundToDivide(viewport.width, sfx[1]) + 'px';
   canvas.style.height = 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 pdfPageRenderCallback() {
    showCanvas();
    resolveRenderPromise(undefined);
   }, function pdfPageRenderError(error) {
    showCanvas();
    rejectRenderPromise(error);
   });
   return result;
  },
  paintOnSvg: function PDFPageView_paintOnSvg(wrapper) {
   var cancelled = false;
   var ensureNotCancelled = function () {
    if (cancelled) {
     throw 'cancelled';
    }
   };
   var self = this;
   var pdfPage = this.pdfPage;
   var SVGGraphics = pdfjsLib.SVGGraphics;
   var actualSizeViewport = this.viewport.clone({ scale: CSS_UNITS });
   var promise = pdfPage.getOperatorList().then(function (opList) {
    ensureNotCancelled();
    var svgGfx = new SVGGraphics(pdfPage.commonObjs, pdfPage.objs);
    return svgGfx.getSVG(opList, actualSizeViewport).then(function (svg) {
     ensureNotCancelled();
     self.svg = svg;
     self.paintedViewportMap.set(svg, actualSizeViewport);
     svg.style.width = wrapper.style.width;
     svg.style.height = wrapper.style.height;
     self.renderingState = RenderingStates.FINISHED;
     wrapper.appendChild(svg);
    });
   });
   return {
    promise: promise,
    onRenderContinue: function (cont) {
     cont();
    },
    cancel: function () {
     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";

var domEvents = __w_pdfjs_require__(2);
var pdfjsLib = __w_pdfjs_require__(0);
var EXPAND_DIVS_TIMEOUT = 300;
var TextLayerBuilder = function TextLayerBuilderClosure() {
 function TextLayerBuilder(options) {
  this.textLayerDiv = options.textLayerDiv;
  this.eventBus = options.eventBus || domEvents.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) {
   if (!this.textContent || this.renderingDone) {
    return;
   }
   this.cancel();
   this.textDivs = [];
   var textLayerFrag = document.createDocumentFragment();
   this.textLayerRenderTask = pdfjsLib.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();
   }.bind(this), 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 (textLayerDiv, pageIndex, viewport, enhanceTextSelection) {
  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";

var CLEANUP_TIMEOUT = 30000;
var RenderingStates = {
 INITIAL: 0,
 RUNNING: 1,
 PAUSED: 2,
 FINISHED: 3
};
var PDFRenderingQueue = function PDFRenderingQueueClosure() {
 function PDFRenderingQueue() {
  this.pdfViewer = null;
  this.pdfThumbnailViewer = null;
  this.onIdle = null;
  this.highestPriorityPage = null;
  this.idleTimeout = null;
  this.printing = false;
  this.isThumbnailViewEnabled = false;
 }
 PDFRenderingQueue.prototype = {
  setViewer: function PDFRenderingQueue_setViewer(pdfViewer) {
   this.pdfViewer = pdfViewer;
  },
  setThumbnailViewer: function PDFRenderingQueue_setThumbnailViewer(pdfThumbnailViewer) {
   this.pdfThumbnailViewer = pdfThumbnailViewer;
  },
  isHighestPriority: function PDFRenderingQueue_isHighestPriority(view) {
   return this.highestPriorityPage === view.renderingId;
  },
  renderHighestPriority: function PDFRenderingQueue_renderHighestPriority(currentlyVisiblePages) {
   if (this.idleTimeout) {
    clearTimeout(this.idleTimeout);
    this.idleTimeout = null;
   }
   if (this.pdfViewer.forceRendering(currentlyVisiblePages)) {
    return;
   }
   if (this.pdfThumbnailViewer && this.isThumbnailViewEnabled) {
    if (this.pdfThumbnailViewer.forceRendering()) {
     return;
    }
   }
   if (this.printing) {
    return;
   }
   if (this.onIdle) {
    this.idleTimeout = setTimeout(this.onIdle.bind(this), CLEANUP_TIMEOUT);
   }
  },
  getHighestPriority: function PDFRenderingQueue_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;
  },
  isViewFinished: function PDFRenderingQueue_isViewFinished(view) {
   return view.renderingState === RenderingStates.FINISHED;
  },
  renderView: function PDFRenderingQueue_renderView(view) {
   var state = view.renderingState;
   switch (state) {
   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 () {
     this.renderHighestPriority();
    }.bind(this);
    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";

var pdfjsLib = __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 (!pdfjsLib.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 = pdfjsLib.createObjectURL(data, contentType, pdfjsLib.PDFJS.disableCreateObjectURL);
  download(blobUrl, filename);
 },
 download: function DownloadManager_download(blob, url, filename) {
  if (!URL) {
   this.downloadUrl(url, filename);
   return;
  }
  if (navigator.msSaveBlob) {
   if (!navigator.msSaveBlob(blob, filename)) {
    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";

var uiUtils = __w_pdfjs_require__(1);
var scrollIntoView = uiUtils.scrollIntoView;
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': '"',
 '\u00BC': '1/4',
 '\u00BD': '1/2',
 '\u00BE': '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() {
   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;
   }.bind(this));
  },
  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 PDFFindController_extractText() {
   if (this.startedTextExtraction) {
    return;
   }
   this.startedTextExtraction = true;
   this.pageContents = [];
   var extractTextPromisesResolves = [];
   var numPages = this.pdfViewer.pagesCount;
   for (var i = 0; i < numPages; i++) {
    this.extractTextPromises.push(new Promise(function (resolve) {
     extractTextPromisesResolves.push(resolve);
    }));
   }
   var self = this;
   function extractPageText(pageIndex) {
    self.pdfViewer.getPageTextContent(pageIndex).then(function textContentResolved(textContent) {
     var textItems = textContent.items;
     var str = [];
     for (var i = 0, len = textItems.length; i < len; i++) {
      str.push(textItems[i].str);
     }
     self.pageContents.push(str.join(''));
     extractTextPromisesResolves[pageIndex](pageIndex);
     if (pageIndex + 1 < self.pdfViewer.pagesCount) {
      extractPageText(pageIndex + 1);
     }
    });
   }
   extractPageText(0);
  },
  executeCommand: function PDFFindController_executeCommand(cmd, state) {
   if (this.state === null || cmd !== 'findagain') {
    this.dirtyMatch = true;
   }
   this.state = state;
   this.updateUIState(FindStates.FIND_PENDING);
   this.firstPagePromise.then(function () {
    this.extractText();
    clearTimeout(this.findTimeout);
    if (cmd === 'find') {
     this.findTimeout = setTimeout(this.nextMatch.bind(this), 250);
    } else {
     this.nextMatch();
    }
   }.bind(this));
  },
  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 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;
    var self = this;
    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 self.pendingFindMatches[pageIdx];
       self.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
    };
    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";

var domEvents = __w_pdfjs_require__(2);
function PDFHistory(options) {
 this.linkService = options.linkService;
 this.eventBus = options.eventBus || domEvents.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";

var uiUtils = __w_pdfjs_require__(1);
var pdfPageView = __w_pdfjs_require__(5);
var pdfRenderingQueue = __w_pdfjs_require__(7);
var textLayerBuilder = __w_pdfjs_require__(6);
var annotationLayerBuilder = __w_pdfjs_require__(4);
var pdfLinkService = __w_pdfjs_require__(3);
var domEvents = __w_pdfjs_require__(2);
var pdfjsLib = __w_pdfjs_require__(0);
var UNKNOWN_SCALE = uiUtils.UNKNOWN_SCALE;
var SCROLLBAR_PADDING = uiUtils.SCROLLBAR_PADDING;
var VERTICAL_PADDING = uiUtils.VERTICAL_PADDING;
var MAX_AUTO_SCALE = uiUtils.MAX_AUTO_SCALE;
var CSS_UNITS = uiUtils.CSS_UNITS;
var DEFAULT_SCALE = uiUtils.DEFAULT_SCALE;
var DEFAULT_SCALE_VALUE = uiUtils.DEFAULT_SCALE_VALUE;
var RendererType = uiUtils.RendererType;
var scrollIntoView = uiUtils.scrollIntoView;
var watchScroll = uiUtils.watchScroll;
var getVisibleElements = uiUtils.getVisibleElements;
var PDFPageView = pdfPageView.PDFPageView;
var RenderingStates = pdfRenderingQueue.RenderingStates;
var PDFRenderingQueue = pdfRenderingQueue.PDFRenderingQueue;
var TextLayerBuilder = textLayerBuilder.TextLayerBuilder;
var AnnotationLayerBuilder = annotationLayerBuilder.AnnotationLayerBuilder;
var SimpleLinkService = pdfLinkService.SimpleLinkService;
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 || domEvents.getGlobalEventBus();
  this.linkService = options.linkService || new 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 || RendererType.CANVAS;
  this.defaultRenderingQueue = !options.renderingQueue;
  if (this.defaultRenderingQueue) {
   this.renderingQueue = new PDFRenderingQueue();
   this.renderingQueue.setViewer(this);
  } else {
   this.renderingQueue = options.renderingQueue;
  }
  this.scroll = 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 (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 !== UNKNOWN_SCALE ? this._currentScale : DEFAULT_SCALE;
  },
  set currentScale(val) {
   if (isNaN(val)) {
    throw new Error('Invalid numeric scale');
   }
   if (!this.pdfDocument) {
    this._currentScale = val;
    this._currentScaleValue = val !== 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) ? 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 (pdfDocument) {
   if (this.pdfDocument) {
    this._cancelRendering();
    this._resetView();
   }
   this.pdfDocument = pdfDocument;
   if (!pdfDocument) {
    return;
   }
   var pagesCount = pdfDocument.numPages;
   var self = this;
   var resolvePagesPromise;
   var pagesPromise = new Promise(function (resolve) {
    resolvePagesPromise = resolve;
   });
   this.pagesPromise = pagesPromise;
   pagesPromise.then(function () {
    self._pageViewsReady = true;
    self.eventBus.dispatch('pagesloaded', {
     source: self,
     pagesCount: pagesCount
    });
   });
   var isOnePageRenderedResolved = false;
   var resolveOnePageRendered = null;
   var onePageRendered = new Promise(function (resolve) {
    resolveOnePageRendered = resolve;
   });
   this.onePageRendered = onePageRendered;
   var bindOnAfterAndBeforeDraw = function (pageView) {
    pageView.onBeforeDraw = function pdfViewLoadOnBeforeDraw() {
     self._buffer.push(this);
    };
    pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
     if (!isOnePageRenderedResolved) {
      isOnePageRenderedResolved = true;
      resolveOnePageRendered();
     }
    };
   };
   var firstPagePromise = pdfDocument.getPage(1);
   this.firstPagePromise = firstPagePromise;
   return firstPagePromise.then(function (pdfPage) {
    var scale = this.currentScale;
    var viewport = pdfPage.getViewport(scale * CSS_UNITS);
    for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
     var textLayerFactory = null;
     if (!pdfjsLib.PDFJS.disableTextLayer) {
      textLayerFactory = this;
     }
     var pageView = new 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);
    }
    var linkService = this.linkService;
    onePageRendered.then(function () {
     if (!pdfjsLib.PDFJS.disableAutoFetch) {
      var getPagesLeft = pagesCount;
      for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
       pdfDocument.getPage(pageNum).then(function (pageNum, pdfPage) {
        var pageView = self._pages[pageNum - 1];
        if (!pageView.pdfPage) {
         pageView.setPdfPage(pdfPage);
        }
        linkService.cachePageRef(pageNum, pdfPage.ref);
        getPagesLeft--;
        if (!getPagesLeft) {
         resolvePagesPromise();
        }
       }.bind(null, pageNum));
      }
     } else {
      resolvePagesPromise();
     }
    });
    self.eventBus.dispatch('pagesinit', { source: self });
    if (this.defaultRenderingQueue) {
     this.update();
    }
    if (this.findController) {
     this.findController.resolveFirstPage();
    }
   }.bind(this));
  },
  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 () {
   this._pages = [];
   this._currentPageNumber = 1;
   this._currentScale = 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 && !pdfjsLib.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 : SCROLLBAR_PADDING;
    var vPadding = this.isInPresentationMode || this.removePageBorders ? 0 : 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(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 () {
   if (this.isInPresentationMode) {
    this._setScale(this._currentScaleValue, true);
   }
   var pageView = this._pages[this._currentPageNumber - 1];
   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 / CSS_UNITS;
   var pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / 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 : SCROLLBAR_PADDING;
    var vPadding = this.removePageBorders ? 0 : VERTICAL_PADDING;
    widthScale = (this.container.clientWidth - hPadding) / width / CSS_UNITS;
    heightScale = (this.container.clientHeight - vPadding) / height / 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 === UNKNOWN_SCALE) {
    this.currentScaleValue = DEFAULT_SCALE_VALUE;
   }
   if (scale === 'page-fit' && !dest[4]) {
    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);
   }
   scrollIntoView(pageView.div, {
    left: left,
    top: top
   });
  },
  _updateLocation: function (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 (element) {
   return this.container.contains(element);
  },
  focus: function () {
   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 () {
   if (!this.isInPresentationMode) {
    return 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 () {
   for (var i = 0, ii = this._pages.length; i < ii; i++) {
    if (this._pages[i] && this._pages[i].renderingState !== 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 (pageView) {
   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) {
    pageView.setPdfPage(pdfPage);
    this._pagesRequests[pageNumber] = null;
    return pdfPage;
   }.bind(this));
   this._pagesRequests[pageNumber] = promise;
   return promise;
  },
  forceRendering: function (currentlyVisiblePages) {
   var visiblePages = currentlyVisiblePages || this._getVisiblePages();
   var pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, this.scroll.down);
   if (pageView) {
    this._ensurePdfPageLoaded(pageView).then(function () {
     this.renderingQueue.renderView(pageView);
    }.bind(this));
    return true;
   }
   return false;
  },
  getPageTextContent: function (pageIndex) {
   return this.pdfDocument.getPage(pageIndex + 1).then(function (page) {
    return page.getTextContent({ normalizeWhitespace: true });
   });
  },
  createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport, enhanceTextSelection) {
   return new TextLayerBuilder({
    textLayerDiv: textLayerDiv,
    eventBus: this.eventBus,
    pageIndex: pageIndex,
    viewport: viewport,
    findController: this.isInPresentationMode ? null : this.findController,
    enhanceTextSelection: this.isInPresentationMode ? false : enhanceTextSelection
   });
  },
  createAnnotationLayerBuilder: function (pageDiv, pdfPage, renderInteractiveForms) {
   return new AnnotationLayerBuilder({
    pageDiv: pageDiv,
    pdfPage: pdfPage,
    renderInteractiveForms: renderInteractiveForms,
    linkService: this.linkService,
    downloadManager: this.downloadManager
   });
  },
  setFindController: function (findController) {
   this.findController = findController;
  },
  getPagesOverview: function () {
   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;

/***/ })
/******/ ]);
});