Browse Source

PDF.js version 1.9.597 - See mozilla/pdf.js@f3987bba237c814b9ed314b904263bc36f83eb5b

pdfjsbot 7 years ago
parent
commit
086dd1493b

+ 1 - 1
bower.json

@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.9.593",
+  "version": "1.9.597",
   "main": [
     "build/pdf.js",
     "build/pdf.worker.js"

+ 6 - 6
build/pdf.combined.js

@@ -13632,8 +13632,8 @@ var _UnsupportedManager = function UnsupportedManagerClosure() {
 }();
 var version, build;
 {
-  exports.version = version = '1.9.593';
-  exports.build = build = '10727572';
+  exports.version = version = '1.9.597';
+  exports.build = build = 'f3987bba';
 }
 exports.getDocument = getDocument;
 exports.LoopbackPort = LoopbackPort;
@@ -29591,8 +29591,8 @@ exports.SVGGraphics = SVGGraphics;
 "use strict";
 
 
-var pdfjsVersion = '1.9.593';
-var pdfjsBuild = '10727572';
+var pdfjsVersion = '1.9.597';
+var pdfjsBuild = 'f3987bba';
 var pdfjsSharedUtil = __w_pdfjs_require__(0);
 var pdfjsDisplayGlobal = __w_pdfjs_require__(98);
 var pdfjsDisplayAPI = __w_pdfjs_require__(55);
@@ -35454,8 +35454,8 @@ if (!_global_scope2.default.PDFJS) {
 }
 var PDFJS = _global_scope2.default.PDFJS;
 {
-  PDFJS.version = '1.9.593';
-  PDFJS.build = '10727572';
+  PDFJS.version = '1.9.597';
+  PDFJS.build = 'f3987bba';
 }
 PDFJS.pdfBug = false;
 if (PDFJS.verbosity !== undefined) {

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+ 0 - 0
build/pdf.combined.js.map


+ 6 - 6
build/pdf.js

@@ -4335,8 +4335,8 @@ var _UnsupportedManager = function UnsupportedManagerClosure() {
 }();
 var version, build;
 {
-  exports.version = version = '1.9.593';
-  exports.build = build = '10727572';
+  exports.version = version = '1.9.597';
+  exports.build = build = 'f3987bba';
 }
 exports.getDocument = getDocument;
 exports.LoopbackPort = LoopbackPort;
@@ -7408,8 +7408,8 @@ exports.SVGGraphics = SVGGraphics;
 "use strict";
 
 
-var pdfjsVersion = '1.9.593';
-var pdfjsBuild = '10727572';
+var pdfjsVersion = '1.9.597';
+var pdfjsBuild = 'f3987bba';
 var pdfjsSharedUtil = __w_pdfjs_require__(0);
 var pdfjsDisplayGlobal = __w_pdfjs_require__(82);
 var pdfjsDisplayAPI = __w_pdfjs_require__(48);
@@ -13271,8 +13271,8 @@ if (!_global_scope2.default.PDFJS) {
 }
 var PDFJS = _global_scope2.default.PDFJS;
 {
-  PDFJS.version = '1.9.593';
-  PDFJS.build = '10727572';
+  PDFJS.version = '1.9.597';
+  PDFJS.build = 'f3987bba';
 }
 PDFJS.pdfBug = false;
 if (PDFJS.verbosity !== undefined) {

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+ 0 - 0
build/pdf.js.map


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+ 0 - 0
build/pdf.min.js


+ 2 - 2
build/pdf.worker.js

@@ -24540,8 +24540,8 @@ exports.getUnicodeForGlyph = getUnicodeForGlyph;
 "use strict";
 
 
-var pdfjsVersion = '1.9.593';
-var pdfjsBuild = '10727572';
+var pdfjsVersion = '1.9.597';
+var pdfjsBuild = 'f3987bba';
 var pdfjsCoreWorker = __w_pdfjs_require__(62);
 exports.WorkerMessageHandler = pdfjsCoreWorker.WorkerMessageHandler;
 

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+ 0 - 0
build/pdf.worker.js.map


+ 2 - 2
lib/display/api.js

@@ -1582,8 +1582,8 @@ var _UnsupportedManager = function UnsupportedManagerClosure() {
 }();
 var version, build;
 {
-  exports.version = version = '1.9.593';
-  exports.build = build = '10727572';
+  exports.version = version = '1.9.597';
+  exports.build = build = 'f3987bba';
 }
 exports.getDocument = getDocument;
 exports.LoopbackPort = LoopbackPort;

+ 2 - 2
lib/display/global.js

@@ -45,8 +45,8 @@ if (!_global_scope2.default.PDFJS) {
 }
 var PDFJS = _global_scope2.default.PDFJS;
 {
-  PDFJS.version = '1.9.593';
-  PDFJS.build = '10727572';
+  PDFJS.version = '1.9.597';
+  PDFJS.build = 'f3987bba';
 }
 PDFJS.pdfBug = false;
 if (PDFJS.verbosity !== undefined) {

+ 2 - 2
lib/pdf.js

@@ -14,8 +14,8 @@
  */
 'use strict';
 
-var pdfjsVersion = '1.9.593';
-var pdfjsBuild = '10727572';
+var pdfjsVersion = '1.9.597';
+var pdfjsBuild = 'f3987bba';
 var pdfjsSharedUtil = require('./shared/util.js');
 var pdfjsDisplayGlobal = require('./display/global.js');
 var pdfjsDisplayAPI = require('./display/api.js');

+ 2 - 2
lib/pdf.worker.js

@@ -14,7 +14,7 @@
  */
 'use strict';
 
-var pdfjsVersion = '1.9.593';
-var pdfjsBuild = '10727572';
+var pdfjsVersion = '1.9.597';
+var pdfjsBuild = 'f3987bba';
 var pdfjsCoreWorker = require('./core/worker.js');
 exports.WorkerMessageHandler = pdfjsCoreWorker.WorkerMessageHandler;

+ 3 - 3
lib/web/app.js

@@ -31,8 +31,6 @@ var _pdf_rendering_queue = require('./pdf_rendering_queue');
 
 var _pdf_sidebar = require('./pdf_sidebar');
 
-var _pdf_viewer = require('./pdf_viewer');
-
 var _dom_events = require('./dom_events');
 
 var _overlay_manager = require('./overlay_manager');
@@ -57,6 +55,8 @@ var _pdf_presentation_mode = require('./pdf_presentation_mode');
 
 var _pdf_thumbnail_viewer = require('./pdf_thumbnail_viewer');
 
+var _pdf_viewer = require('./pdf_viewer');
+
 var _secondary_toolbar = require('./secondary_toolbar');
 
 var _toolbar = require('./toolbar');
@@ -1243,7 +1243,7 @@ function webViewerPresentationModeChanged(evt) {
   var active = evt.active,
       switchInProgress = evt.switchInProgress;
 
-  PDFViewerApplication.pdfViewer.presentationModeState = switchInProgress ? _pdf_viewer.PresentationModeState.CHANGING : active ? _pdf_viewer.PresentationModeState.FULLSCREEN : _pdf_viewer.PresentationModeState.NORMAL;
+  PDFViewerApplication.pdfViewer.presentationModeState = switchInProgress ? _ui_utils.PresentationModeState.CHANGING : active ? _ui_utils.PresentationModeState.FULLSCREEN : _ui_utils.PresentationModeState.NORMAL;
 }
 function webViewerSidebarViewChanged(evt) {
   PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled = PDFViewerApplication.pdfSidebar.isThumbnailViewVisible;

+ 810 - 0
lib/web/base_viewer.js

@@ -0,0 +1,810 @@
+/* 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.
+ */
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.BaseViewer = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _pdf = require('../pdf');
+
+var _ui_utils = require('./ui_utils');
+
+var _pdf_rendering_queue = require('./pdf_rendering_queue');
+
+var _annotation_layer_builder = require('./annotation_layer_builder');
+
+var _dom_events = require('./dom_events');
+
+var _pdf_page_view = require('./pdf_page_view');
+
+var _pdf_link_service = require('./pdf_link_service');
+
+var _text_layer_builder = require('./text_layer_builder');
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+var DEFAULT_CACHE_SIZE = 10;
+function PDFPageViewBuffer(size) {
+  var data = [];
+  this.push = function (view) {
+    var i = data.indexOf(view);
+    if (i >= 0) {
+      data.splice(i, 1);
+    }
+    data.push(view);
+    if (data.length > size) {
+      data.shift().destroy();
+    }
+  };
+  this.resize = function (newSize) {
+    size = newSize;
+    while (data.length > size) {
+      data.shift().destroy();
+    }
+  };
+}
+function isSameScale(oldScale, newScale) {
+  if (newScale === oldScale) {
+    return true;
+  }
+  if (Math.abs(newScale - oldScale) < 1e-15) {
+    return true;
+  }
+  return false;
+}
+function isPortraitOrientation(size) {
+  return size.width <= size.height;
+}
+
+var BaseViewer = function () {
+  function BaseViewer(options) {
+    _classCallCheck(this, BaseViewer);
+
+    if (this.constructor === BaseViewer) {
+      throw new Error('Cannot initialize BaseViewer.');
+    }
+    this._name = this.constructor.name;
+    this.container = options.container;
+    this.viewer = options.viewer || options.container.firstElementChild;
+    this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
+    this.linkService = options.linkService || new _pdf_link_service.SimpleLinkService();
+    this.downloadManager = options.downloadManager || null;
+    this.removePageBorders = options.removePageBorders || false;
+    this.enhanceTextSelection = options.enhanceTextSelection || false;
+    this.renderInteractiveForms = options.renderInteractiveForms || false;
+    this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
+    this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
+    this.l10n = options.l10n || _ui_utils.NullL10n;
+    this.defaultRenderingQueue = !options.renderingQueue;
+    if (this.defaultRenderingQueue) {
+      this.renderingQueue = new _pdf_rendering_queue.PDFRenderingQueue();
+      this.renderingQueue.setViewer(this);
+    } else {
+      this.renderingQueue = options.renderingQueue;
+    }
+    this.scroll = (0, _ui_utils.watchScroll)(this.container, this._scrollUpdate.bind(this));
+    this.presentationModeState = _ui_utils.PresentationModeState.UNKNOWN;
+    this._resetView();
+    if (this.removePageBorders) {
+      this.viewer.classList.add('removePageBorders');
+    }
+  }
+
+  _createClass(BaseViewer, [{
+    key: 'getPageView',
+    value: function getPageView(index) {
+      return this._pages[index];
+    }
+  }, {
+    key: '_setCurrentPageNumber',
+    value: function _setCurrentPageNumber(val) {
+      var resetCurrentPageView = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+      if (this._currentPageNumber === val) {
+        if (resetCurrentPageView) {
+          this._resetCurrentPageView();
+        }
+        return;
+      }
+      if (!(0 < val && val <= this.pagesCount)) {
+        console.error(this._name + '._setCurrentPageNumber: "' + val + '" is out of bounds.');
+        return;
+      }
+      var arg = {
+        source: this,
+        pageNumber: val,
+        pageLabel: this._pageLabels && this._pageLabels[val - 1]
+      };
+      this._currentPageNumber = val;
+      this.eventBus.dispatch('pagechanging', arg);
+      this.eventBus.dispatch('pagechange', arg);
+      if (resetCurrentPageView) {
+        this._resetCurrentPageView();
+      }
+    }
+  }, {
+    key: 'setDocument',
+    value: function setDocument(pdfDocument) {
+      var _this = this;
+
+      if (this.pdfDocument) {
+        this._cancelRendering();
+        this._resetView();
+      }
+      this.pdfDocument = pdfDocument;
+      if (!pdfDocument) {
+        return;
+      }
+      var pagesCount = pdfDocument.numPages;
+      var pagesCapability = (0, _pdf.createPromiseCapability)();
+      this.pagesPromise = pagesCapability.promise;
+      pagesCapability.promise.then(function () {
+        _this._pageViewsReady = true;
+        _this.eventBus.dispatch('pagesloaded', {
+          source: _this,
+          pagesCount: pagesCount
+        });
+      });
+      var isOnePageRenderedResolved = false;
+      var onePageRenderedCapability = (0, _pdf.createPromiseCapability)();
+      this.onePageRendered = onePageRenderedCapability.promise;
+      var bindOnAfterAndBeforeDraw = function bindOnAfterAndBeforeDraw(pageView) {
+        pageView.onBeforeDraw = function () {
+          _this._buffer.push(pageView);
+        };
+        pageView.onAfterDraw = function () {
+          if (!isOnePageRenderedResolved) {
+            isOnePageRenderedResolved = true;
+            onePageRenderedCapability.resolve();
+          }
+        };
+      };
+      var firstPagePromise = pdfDocument.getPage(1);
+      this.firstPagePromise = firstPagePromise;
+      firstPagePromise.then(function (pdfPage) {
+        var scale = _this.currentScale;
+        var viewport = pdfPage.getViewport(scale * _ui_utils.CSS_UNITS);
+        for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
+          var textLayerFactory = null;
+          if (!_pdf.PDFJS.disableTextLayer) {
+            textLayerFactory = _this;
+          }
+          var pageView = new _pdf_page_view.PDFPageView({
+            container: _this._setDocumentViewerElement,
+            eventBus: _this.eventBus,
+            id: pageNum,
+            scale: scale,
+            defaultViewport: viewport.clone(),
+            renderingQueue: _this.renderingQueue,
+            textLayerFactory: textLayerFactory,
+            annotationLayerFactory: _this,
+            enhanceTextSelection: _this.enhanceTextSelection,
+            renderInteractiveForms: _this.renderInteractiveForms,
+            renderer: _this.renderer,
+            l10n: _this.l10n
+          });
+          bindOnAfterAndBeforeDraw(pageView);
+          _this._pages.push(pageView);
+        }
+        onePageRenderedCapability.promise.then(function () {
+          if (_pdf.PDFJS.disableAutoFetch) {
+            pagesCapability.resolve();
+            return;
+          }
+          var getPagesLeft = pagesCount;
+
+          var _loop = function _loop(_pageNum) {
+            pdfDocument.getPage(_pageNum).then(function (pdfPage) {
+              var pageView = _this._pages[_pageNum - 1];
+              if (!pageView.pdfPage) {
+                pageView.setPdfPage(pdfPage);
+              }
+              _this.linkService.cachePageRef(_pageNum, pdfPage.ref);
+              if (--getPagesLeft === 0) {
+                pagesCapability.resolve();
+              }
+            }, function (reason) {
+              console.error('Unable to get page ' + _pageNum + ' to initialize viewer', reason);
+              if (--getPagesLeft === 0) {
+                pagesCapability.resolve();
+              }
+            });
+          };
+
+          for (var _pageNum = 1; _pageNum <= pagesCount; ++_pageNum) {
+            _loop(_pageNum);
+          }
+        });
+        _this.eventBus.dispatch('pagesinit', { source: _this });
+        if (_this.defaultRenderingQueue) {
+          _this.update();
+        }
+        if (_this.findController) {
+          _this.findController.resolveFirstPage();
+        }
+      }).catch(function (reason) {
+        console.error('Unable to initialize viewer', reason);
+      });
+    }
+  }, {
+    key: 'setPageLabels',
+    value: function setPageLabels(labels) {
+      if (!this.pdfDocument) {
+        return;
+      }
+      if (!labels) {
+        this._pageLabels = null;
+      } else if (!(labels instanceof Array && this.pdfDocument.numPages === labels.length)) {
+        this._pageLabels = null;
+        console.error(this._name + '.setPageLabels: Invalid page labels.');
+      } else {
+        this._pageLabels = labels;
+      }
+      for (var i = 0, ii = this._pages.length; i < ii; i++) {
+        var pageView = this._pages[i];
+        var label = this._pageLabels && this._pageLabels[i];
+        pageView.setPageLabel(label);
+      }
+    }
+  }, {
+    key: '_resetView',
+    value: function _resetView() {
+      this._pages = [];
+      this._currentPageNumber = 1;
+      this._currentScale = _ui_utils.UNKNOWN_SCALE;
+      this._currentScaleValue = null;
+      this._pageLabels = null;
+      this._buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE);
+      this._location = null;
+      this._pagesRotation = 0;
+      this._pagesRequests = [];
+      this._pageViewsReady = false;
+      this.viewer.textContent = '';
+    }
+  }, {
+    key: '_scrollUpdate',
+    value: function _scrollUpdate() {
+      if (this.pagesCount === 0) {
+        return;
+      }
+      this.update();
+    }
+  }, {
+    key: '_scrollIntoView',
+    value: function _scrollIntoView(_ref) {
+      var pageDiv = _ref.pageDiv,
+          _ref$pageSpot = _ref.pageSpot,
+          pageSpot = _ref$pageSpot === undefined ? null : _ref$pageSpot,
+          _ref$pageNumber = _ref.pageNumber,
+          pageNumber = _ref$pageNumber === undefined ? null : _ref$pageNumber;
+
+      throw new Error('Not implemented: _scrollIntoView');
+    }
+  }, {
+    key: '_setScaleDispatchEvent',
+    value: function _setScaleDispatchEvent(newScale, newValue) {
+      var preset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+
+      var arg = {
+        source: this,
+        scale: newScale,
+        presetValue: preset ? newValue : undefined
+      };
+      this.eventBus.dispatch('scalechanging', arg);
+      this.eventBus.dispatch('scalechange', arg);
+    }
+  }, {
+    key: '_setScaleUpdatePages',
+    value: function _setScaleUpdatePages(newScale, newValue) {
+      var noScroll = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+      var preset = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
+
+      this._currentScaleValue = newValue.toString();
+      if (isSameScale(this._currentScale, newScale)) {
+        if (preset) {
+          this._setScaleDispatchEvent(newScale, newValue, true);
+        }
+        return;
+      }
+      for (var i = 0, ii = this._pages.length; i < ii; i++) {
+        this._pages[i].update(newScale);
+      }
+      this._currentScale = newScale;
+      if (!noScroll) {
+        var page = this._currentPageNumber,
+            dest = void 0;
+        if (this._location && !_pdf.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();
+      }
+    }
+  }, {
+    key: '_setScale',
+    value: function _setScale(value) {
+      var noScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
+
+      var scale = parseFloat(value);
+      if (scale > 0) {
+        this._setScaleUpdatePages(scale, value, noScroll, false);
+      } else {
+        var currentPage = this._pages[this._currentPageNumber - 1];
+        if (!currentPage) {
+          return;
+        }
+        var hPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
+        var vPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
+        var pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale;
+        var pageHeightScale = (this.container.clientHeight - vPadding) / currentPage.height * currentPage.scale;
+        switch (value) {
+          case 'page-actual':
+            scale = 1;
+            break;
+          case 'page-width':
+            scale = pageWidthScale;
+            break;
+          case 'page-height':
+            scale = pageHeightScale;
+            break;
+          case 'page-fit':
+            scale = Math.min(pageWidthScale, pageHeightScale);
+            break;
+          case 'auto':
+            var isLandscape = currentPage.width > currentPage.height;
+            var horizontalScale = isLandscape ? Math.min(pageHeightScale, pageWidthScale) : pageWidthScale;
+            scale = Math.min(_ui_utils.MAX_AUTO_SCALE, horizontalScale);
+            break;
+          default:
+            console.error(this._name + '._setScale: "' + value + '" is an unknown zoom value.');
+            return;
+        }
+        this._setScaleUpdatePages(scale, value, noScroll, true);
+      }
+    }
+  }, {
+    key: '_resetCurrentPageView',
+    value: function _resetCurrentPageView() {
+      if (this.isInPresentationMode) {
+        this._setScale(this._currentScaleValue, true);
+      }
+      var pageView = this._pages[this._currentPageNumber - 1];
+      this._scrollIntoView({ pageDiv: pageView.div });
+    }
+  }, {
+    key: 'scrollPageIntoView',
+    value: function scrollPageIntoView(params) {
+      if (arguments.length > 1 || typeof params === 'number') {
+        console.error('Call of scrollPageIntoView() with obsolete signature.');
+        return;
+      }
+      if (!this.pdfDocument) {
+        return;
+      }
+      var pageNumber = params.pageNumber || 0;
+      var dest = params.destArray || null;
+      var allowNegativeOffset = params.allowNegativeOffset || false;
+      if (this.isInPresentationMode || !dest) {
+        this._setCurrentPageNumber(pageNumber, true);
+        return;
+      }
+      var pageView = this._pages[pageNumber - 1];
+      if (!pageView) {
+        console.error(this._name + '.scrollPageIntoView: Invalid "pageNumber" parameter.');
+        return;
+      }
+      var x = 0,
+          y = 0;
+      var width = 0,
+          height = 0,
+          widthScale = void 0,
+          heightScale = void 0;
+      var changeOrientation = pageView.rotation % 180 === 0 ? false : true;
+      var pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / _ui_utils.CSS_UNITS;
+      var pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / _ui_utils.CSS_UNITS;
+      var scale = 0;
+      switch (dest[1].name) {
+        case 'XYZ':
+          x = dest[2];
+          y = dest[3];
+          scale = dest[4];
+          x = x !== null ? x : 0;
+          y = y !== null ? y : pageHeight;
+          break;
+        case 'Fit':
+        case 'FitB':
+          scale = 'page-fit';
+          break;
+        case 'FitH':
+        case 'FitBH':
+          y = dest[2];
+          scale = 'page-width';
+          if (y === null && this._location) {
+            x = this._location.left;
+            y = this._location.top;
+          }
+          break;
+        case 'FitV':
+        case 'FitBV':
+          x = dest[2];
+          width = pageWidth;
+          height = pageHeight;
+          scale = 'page-height';
+          break;
+        case 'FitR':
+          x = dest[2];
+          y = dest[3];
+          width = dest[4] - x;
+          height = dest[5] - y;
+          var hPadding = this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
+          var vPadding = this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
+          widthScale = (this.container.clientWidth - hPadding) / width / _ui_utils.CSS_UNITS;
+          heightScale = (this.container.clientHeight - vPadding) / height / _ui_utils.CSS_UNITS;
+          scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
+          break;
+        default:
+          console.error(this._name + '.scrollPageIntoView: "' + dest[1].name + '" ' + 'is not a valid destination type.');
+          return;
+      }
+      if (scale && scale !== this._currentScale) {
+        this.currentScaleValue = scale;
+      } else if (this._currentScale === _ui_utils.UNKNOWN_SCALE) {
+        this.currentScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
+      }
+      if (scale === 'page-fit' && !dest[4]) {
+        this._scrollIntoView({
+          pageDiv: pageView.div,
+          pageNumber: pageNumber
+        });
+        return;
+      }
+      var boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)];
+      var left = Math.min(boundingRect[0][0], boundingRect[1][0]);
+      var top = Math.min(boundingRect[0][1], boundingRect[1][1]);
+      if (!allowNegativeOffset) {
+        left = Math.max(left, 0);
+        top = Math.max(top, 0);
+      }
+      this._scrollIntoView({
+        pageDiv: pageView.div,
+        pageSpot: {
+          left: left,
+          top: top
+        },
+        pageNumber: pageNumber
+      });
+    }
+  }, {
+    key: '_resizeBuffer',
+    value: function _resizeBuffer(numVisiblePages) {
+      var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * numVisiblePages + 1);
+      this._buffer.resize(suggestedCacheSize);
+    }
+  }, {
+    key: '_updateLocation',
+    value: function _updateLocation(firstPage) {
+      var currentScale = this._currentScale;
+      var currentScaleValue = this._currentScaleValue;
+      var normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue;
+      var pageNumber = firstPage.id;
+      var pdfOpenParams = '#page=' + pageNumber;
+      pdfOpenParams += '&zoom=' + normalizedScaleValue;
+      var currentPageView = this._pages[pageNumber - 1];
+      var container = this.container;
+      var topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y);
+      var intLeft = Math.round(topLeft[0]);
+      var intTop = Math.round(topLeft[1]);
+      pdfOpenParams += ',' + intLeft + ',' + intTop;
+      this._location = {
+        pageNumber: pageNumber,
+        scale: normalizedScaleValue,
+        top: intTop,
+        left: intLeft,
+        rotation: this._pagesRotation,
+        pdfOpenParams: pdfOpenParams
+      };
+    }
+  }, {
+    key: 'update',
+    value: function update() {
+      throw new Error('Not implemented: update');
+    }
+  }, {
+    key: 'containsElement',
+    value: function containsElement(element) {
+      return this.container.contains(element);
+    }
+  }, {
+    key: 'focus',
+    value: function focus() {
+      this.container.focus();
+    }
+  }, {
+    key: '_getVisiblePages',
+    value: function _getVisiblePages() {
+      throw new Error('Not implemented: _getVisiblePages');
+    }
+  }, {
+    key: 'cleanup',
+    value: function cleanup() {
+      for (var i = 0, ii = this._pages.length; i < ii; i++) {
+        if (this._pages[i] && this._pages[i].renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
+          this._pages[i].reset();
+        }
+      }
+    }
+  }, {
+    key: '_cancelRendering',
+    value: function _cancelRendering() {
+      for (var i = 0, ii = this._pages.length; i < ii; i++) {
+        if (this._pages[i]) {
+          this._pages[i].cancelRendering();
+        }
+      }
+    }
+  }, {
+    key: '_ensurePdfPageLoaded',
+    value: function _ensurePdfPageLoaded(pageView) {
+      var _this2 = this;
+
+      if (pageView.pdfPage) {
+        return Promise.resolve(pageView.pdfPage);
+      }
+      var pageNumber = pageView.id;
+      if (this._pagesRequests[pageNumber]) {
+        return this._pagesRequests[pageNumber];
+      }
+      var promise = this.pdfDocument.getPage(pageNumber).then(function (pdfPage) {
+        if (!pageView.pdfPage) {
+          pageView.setPdfPage(pdfPage);
+        }
+        _this2._pagesRequests[pageNumber] = null;
+        return pdfPage;
+      }).catch(function (reason) {
+        console.error('Unable to get page for page view', reason);
+        _this2._pagesRequests[pageNumber] = null;
+      });
+      this._pagesRequests[pageNumber] = promise;
+      return promise;
+    }
+  }, {
+    key: 'forceRendering',
+    value: function forceRendering(currentlyVisiblePages) {
+      var _this3 = this;
+
+      var visiblePages = currentlyVisiblePages || this._getVisiblePages();
+      var pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, this.scroll.down);
+      if (pageView) {
+        this._ensurePdfPageLoaded(pageView).then(function () {
+          _this3.renderingQueue.renderView(pageView);
+        });
+        return true;
+      }
+      return false;
+    }
+  }, {
+    key: 'getPageTextContent',
+    value: function getPageTextContent(pageIndex) {
+      return this.pdfDocument.getPage(pageIndex + 1).then(function (page) {
+        return page.getTextContent({ normalizeWhitespace: true });
+      });
+    }
+  }, {
+    key: 'createTextLayerBuilder',
+    value: function createTextLayerBuilder(textLayerDiv, pageIndex, viewport) {
+      var enhanceTextSelection = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
+
+      return new _text_layer_builder.TextLayerBuilder({
+        textLayerDiv: textLayerDiv,
+        eventBus: this.eventBus,
+        pageIndex: pageIndex,
+        viewport: viewport,
+        findController: this.isInPresentationMode ? null : this.findController,
+        enhanceTextSelection: this.isInPresentationMode ? false : enhanceTextSelection
+      });
+    }
+  }, {
+    key: 'createAnnotationLayerBuilder',
+    value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
+      var renderInteractiveForms = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+      var l10n = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : _ui_utils.NullL10n;
+
+      return new _annotation_layer_builder.AnnotationLayerBuilder({
+        pageDiv: pageDiv,
+        pdfPage: pdfPage,
+        renderInteractiveForms: renderInteractiveForms,
+        linkService: this.linkService,
+        downloadManager: this.downloadManager,
+        l10n: l10n
+      });
+    }
+  }, {
+    key: 'setFindController',
+    value: function setFindController(findController) {
+      this.findController = findController;
+    }
+  }, {
+    key: 'getPagesOverview',
+    value: function getPagesOverview() {
+      var pagesOverview = this._pages.map(function (pageView) {
+        var viewport = pageView.pdfPage.getViewport(1);
+        return {
+          width: viewport.width,
+          height: viewport.height,
+          rotation: viewport.rotation
+        };
+      });
+      if (!this.enablePrintAutoRotate) {
+        return pagesOverview;
+      }
+      var isFirstPagePortrait = isPortraitOrientation(pagesOverview[0]);
+      return pagesOverview.map(function (size) {
+        if (isFirstPagePortrait === isPortraitOrientation(size)) {
+          return size;
+        }
+        return {
+          width: size.height,
+          height: size.width,
+          rotation: (size.rotation + 90) % 360
+        };
+      });
+    }
+  }, {
+    key: 'pagesCount',
+    get: function get() {
+      return this._pages.length;
+    }
+  }, {
+    key: 'pageViewsReady',
+    get: function get() {
+      return this._pageViewsReady;
+    }
+  }, {
+    key: 'currentPageNumber',
+    get: function get() {
+      return this._currentPageNumber;
+    },
+    set: function set(val) {
+      if (!Number.isInteger(val)) {
+        throw new Error('Invalid page number.');
+      }
+      if (!this.pdfDocument) {
+        return;
+      }
+      this._setCurrentPageNumber(val, true);
+    }
+  }, {
+    key: 'currentPageLabel',
+    get: function get() {
+      return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
+    },
+    set: function set(val) {
+      var pageNumber = val | 0;
+      if (this._pageLabels) {
+        var i = this._pageLabels.indexOf(val);
+        if (i >= 0) {
+          pageNumber = i + 1;
+        }
+      }
+      this.currentPageNumber = pageNumber;
+    }
+  }, {
+    key: 'currentScale',
+    get: function get() {
+      return this._currentScale !== _ui_utils.UNKNOWN_SCALE ? this._currentScale : _ui_utils.DEFAULT_SCALE;
+    },
+    set: function set(val) {
+      if (isNaN(val)) {
+        throw new Error('Invalid numeric scale');
+      }
+      if (!this.pdfDocument) {
+        return;
+      }
+      this._setScale(val, false);
+    }
+  }, {
+    key: 'currentScaleValue',
+    get: function get() {
+      return this._currentScaleValue;
+    },
+    set: function set(val) {
+      if (!this.pdfDocument) {
+        return;
+      }
+      this._setScale(val, false);
+    }
+  }, {
+    key: 'pagesRotation',
+    get: function get() {
+      return this._pagesRotation;
+    },
+    set: function set(rotation) {
+      if (!(0, _ui_utils.isValidRotation)(rotation)) {
+        throw new Error('Invalid pages rotation angle.');
+      }
+      if (!this.pdfDocument) {
+        return;
+      }
+      if (this._pagesRotation === rotation) {
+        return;
+      }
+      this._pagesRotation = rotation;
+      var pageNumber = this._currentPageNumber;
+      for (var i = 0, ii = this._pages.length; i < ii; i++) {
+        var pageView = this._pages[i];
+        pageView.update(pageView.scale, rotation);
+      }
+      if (this._currentScaleValue) {
+        this._setScale(this._currentScaleValue, true);
+      }
+      this.eventBus.dispatch('rotationchanging', {
+        source: this,
+        pagesRotation: rotation,
+        pageNumber: pageNumber
+      });
+      if (this.defaultRenderingQueue) {
+        this.update();
+      }
+    }
+  }, {
+    key: '_setDocumentViewerElement',
+    get: function get() {
+      throw new Error('Not implemented: _setDocumentViewerElement');
+    }
+  }, {
+    key: 'isInPresentationMode',
+    get: function get() {
+      return this.presentationModeState === _ui_utils.PresentationModeState.FULLSCREEN;
+    }
+  }, {
+    key: 'isChangingPresentationMode',
+    get: function get() {
+      return this.presentationModeState === _ui_utils.PresentationModeState.CHANGING;
+    }
+  }, {
+    key: 'isHorizontalScrollbarEnabled',
+    get: function get() {
+      return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth;
+    }
+  }, {
+    key: 'hasEqualPageSizes',
+    get: function get() {
+      var firstPageView = this._pages[0];
+      for (var i = 1, ii = this._pages.length; i < ii; ++i) {
+        var pageView = this._pages[i];
+        if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) {
+          return false;
+        }
+      }
+      return true;
+    }
+  }]);
+
+  return BaseViewer;
+}();
+
+exports.BaseViewer = BaseViewer;

+ 171 - 0
lib/web/pdf_single_page_viewer.js

@@ -0,0 +1,171 @@
+/* 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.
+ */
+'use strict';
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.PDFSinglePageViewer = undefined;
+
+var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
+
+var _get = function get(object, property, receiver) { if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { return get(parent, property, receiver); } } else if ("value" in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } };
+
+var _base_viewer = require('./base_viewer');
+
+var _ui_utils = require('./ui_utils');
+
+var _pdf = require('../pdf');
+
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+
+var PDFSinglePageViewer = function (_BaseViewer) {
+  _inherits(PDFSinglePageViewer, _BaseViewer);
+
+  function PDFSinglePageViewer(options) {
+    _classCallCheck(this, PDFSinglePageViewer);
+
+    var _this = _possibleConstructorReturn(this, (PDFSinglePageViewer.__proto__ || Object.getPrototypeOf(PDFSinglePageViewer)).call(this, options));
+
+    _this.eventBus.on('pagesinit', function (evt) {
+      _this._ensurePageViewVisible();
+    });
+    return _this;
+  }
+
+  _createClass(PDFSinglePageViewer, [{
+    key: '_resetView',
+    value: function _resetView() {
+      _get(PDFSinglePageViewer.prototype.__proto__ || Object.getPrototypeOf(PDFSinglePageViewer.prototype), '_resetView', this).call(this);
+      this._previousPageNumber = 1;
+      this._shadowViewer = document.createDocumentFragment();
+    }
+  }, {
+    key: '_ensurePageViewVisible',
+    value: function _ensurePageViewVisible() {
+      var pageView = this._pages[this._currentPageNumber - 1];
+      var previousPageView = this._pages[this._previousPageNumber - 1];
+      var viewerNodes = this.viewer.childNodes;
+      switch (viewerNodes.length) {
+        case 0:
+          this.viewer.appendChild(pageView.div);
+          break;
+        case 1:
+          if (viewerNodes[0] !== previousPageView.div) {
+            throw new Error('_ensurePageViewVisible: Unexpected previously visible page.');
+          }
+          if (pageView === previousPageView) {
+            break;
+          }
+          this._shadowViewer.appendChild(previousPageView.div);
+          this.viewer.appendChild(pageView.div);
+          this.container.scrollTop = 0;
+          break;
+        default:
+          throw new Error('_ensurePageViewVisible: Only one page should be visible at a time.');
+      }
+      this._previousPageNumber = this._currentPageNumber;
+    }
+  }, {
+    key: '_scrollUpdate',
+    value: function _scrollUpdate() {
+      if (this._updateScrollDown) {
+        this._updateScrollDown();
+      }
+      _get(PDFSinglePageViewer.prototype.__proto__ || Object.getPrototypeOf(PDFSinglePageViewer.prototype), '_scrollUpdate', this).call(this);
+    }
+  }, {
+    key: '_scrollIntoView',
+    value: function _scrollIntoView(_ref) {
+      var _this2 = this;
+
+      var pageDiv = _ref.pageDiv,
+          _ref$pageSpot = _ref.pageSpot,
+          pageSpot = _ref$pageSpot === undefined ? null : _ref$pageSpot,
+          _ref$pageNumber = _ref.pageNumber,
+          pageNumber = _ref$pageNumber === undefined ? null : _ref$pageNumber;
+
+      if (pageNumber) {
+        this._setCurrentPageNumber(pageNumber);
+      }
+      var scrolledDown = this._currentPageNumber >= this._previousPageNumber;
+      var previousLocation = this._location;
+      this._ensurePageViewVisible();
+      (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
+      this._updateScrollDown = function () {
+        _this2.scroll.down = scrolledDown;
+        delete _this2._updateScrollDown;
+      };
+      setTimeout(function () {
+        if (_this2._location === previousLocation) {
+          if (_this2._updateScrollDown) {
+            _this2._updateScrollDown();
+          }
+          _this2.update();
+        }
+      }, 0);
+    }
+  }, {
+    key: '_getVisiblePages',
+    value: function _getVisiblePages() {
+      if (!this.pagesCount) {
+        return { views: [] };
+      }
+      var pageView = this._pages[this._currentPageNumber - 1];
+      var element = pageView.div;
+      var view = {
+        id: pageView.id,
+        x: element.offsetLeft + element.clientLeft,
+        y: element.offsetTop + element.clientTop,
+        view: pageView
+      };
+      return {
+        first: view,
+        last: view,
+        views: [view]
+      };
+    }
+  }, {
+    key: 'update',
+    value: function update() {
+      var visible = this._getVisiblePages();
+      var visiblePages = visible.views,
+          numVisiblePages = visiblePages.length;
+      if (numVisiblePages === 0) {
+        return;
+      }
+      this._resizeBuffer(numVisiblePages);
+      this.renderingQueue.renderHighestPriority(visible);
+      this._updateLocation(visible.first);
+      this.eventBus.dispatch('updateviewarea', {
+        source: this,
+        location: this._location
+      });
+    }
+  }, {
+    key: '_setDocumentViewerElement',
+    get: function get() {
+      return (0, _pdf.shadow)(this, '_setDocumentViewerElement', this._shadowViewer);
+    }
+  }]);
+
+  return PDFSinglePageViewer;
+}(_base_viewer.BaseViewer);
+
+exports.PDFSinglePageViewer = PDFSinglePageViewer;

+ 2 - 0
lib/web/pdf_viewer.component.js

@@ -16,6 +16,7 @@
 
 var pdfjsLib = require('./pdfjs.js');
 var pdfjsWebPDFViewer = require('./pdf_viewer.js');
+var pdfjsWebPDFSinglePageViewer = require('./pdf_single_page_viewer');
 var pdfjsWebPDFPageView = require('./pdf_page_view.js');
 var pdfjsWebPDFLinkService = require('./pdf_link_service.js');
 var pdfjsWebTextLayerBuilder = require('./text_layer_builder.js');
@@ -27,6 +28,7 @@ var pdfjsWebDownloadManager = require('./download_manager.js');
 var pdfjsWebGenericL10n = require('./genericl10n.js');
 var PDFJS = pdfjsLib.PDFJS;
 PDFJS.PDFViewer = pdfjsWebPDFViewer.PDFViewer;
+PDFJS.PDFSinglePageViewer = pdfjsWebPDFSinglePageViewer.PDFSinglePageViewer;
 PDFJS.PDFPageView = pdfjsWebPDFPageView.PDFPageView;
 PDFJS.PDFLinkService = pdfjsWebPDFLinkService.PDFLinkService;
 PDFJS.SimpleLinkService = pdfjsWebPDFLinkService.SimpleLinkService;

+ 38 - 750
lib/web/pdf_viewer.js

@@ -17,510 +17,71 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.PDFViewer = exports.PresentationModeState = undefined;
+exports.PDFViewer = undefined;
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
-var _pdf = require('../pdf');
-
 var _ui_utils = require('./ui_utils');
 
-var _pdf_rendering_queue = require('./pdf_rendering_queue');
-
-var _annotation_layer_builder = require('./annotation_layer_builder');
-
-var _dom_events = require('./dom_events');
+var _base_viewer = require('./base_viewer');
 
-var _pdf_page_view = require('./pdf_page_view');
+var _pdf = require('../pdf');
 
-var _pdf_link_service = require('./pdf_link_service');
+function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
 
-var _text_layer_builder = require('./text_layer_builder');
+function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
 
-var PresentationModeState = {
-  UNKNOWN: 0,
-  NORMAL: 1,
-  CHANGING: 2,
-  FULLSCREEN: 3
-};
-var DEFAULT_CACHE_SIZE = 10;
-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;
-}
+var PDFViewer = function (_BaseViewer) {
+  _inherits(PDFViewer, _BaseViewer);
 
-var PDFViewer = function () {
-  function PDFViewer(options) {
+  function PDFViewer() {
     _classCallCheck(this, PDFViewer);
 
-    this.container = options.container;
-    this.viewer = options.viewer || options.container.firstElementChild;
-    this.eventBus = options.eventBus || (0, _dom_events.getGlobalEventBus)();
-    this.linkService = options.linkService || new _pdf_link_service.SimpleLinkService();
-    this.downloadManager = options.downloadManager || null;
-    this.removePageBorders = options.removePageBorders || false;
-    this.enhanceTextSelection = options.enhanceTextSelection || false;
-    this.renderInteractiveForms = options.renderInteractiveForms || false;
-    this.enablePrintAutoRotate = options.enablePrintAutoRotate || false;
-    this.renderer = options.renderer || _ui_utils.RendererType.CANVAS;
-    this.l10n = options.l10n || _ui_utils.NullL10n;
-    this.defaultRenderingQueue = !options.renderingQueue;
-    if (this.defaultRenderingQueue) {
-      this.renderingQueue = new _pdf_rendering_queue.PDFRenderingQueue();
-      this.renderingQueue.setViewer(this);
-    } else {
-      this.renderingQueue = options.renderingQueue;
-    }
-    this.scroll = (0, _ui_utils.watchScroll)(this.container, this._scrollUpdate.bind(this));
-    this.presentationModeState = PresentationModeState.UNKNOWN;
-    this._resetView();
-    if (this.removePageBorders) {
-      this.viewer.classList.add('removePageBorders');
-    }
+    return _possibleConstructorReturn(this, (PDFViewer.__proto__ || Object.getPrototypeOf(PDFViewer)).apply(this, arguments));
   }
 
   _createClass(PDFViewer, [{
-    key: 'getPageView',
-    value: function getPageView(index) {
-      return this._pages[index];
-    }
-  }, {
-    key: '_setCurrentPageNumber',
-    value: function _setCurrentPageNumber(val) {
-      var resetCurrentPageView = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
-
-      if (this._currentPageNumber === val) {
-        if (resetCurrentPageView) {
-          this._resetCurrentPageView();
-        }
-        return;
-      }
-      if (!(0 < val && val <= this.pagesCount)) {
-        console.error('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();
-      }
-    }
-  }, {
-    key: 'setDocument',
-    value: function setDocument(pdfDocument) {
-      var _this = this;
-
-      if (this.pdfDocument) {
-        this._cancelRendering();
-        this._resetView();
-      }
-      this.pdfDocument = pdfDocument;
-      if (!pdfDocument) {
-        return;
-      }
-      var pagesCount = pdfDocument.numPages;
-      var pagesCapability = (0, _pdf.createPromiseCapability)();
-      this.pagesPromise = pagesCapability.promise;
-      pagesCapability.promise.then(function () {
-        _this._pageViewsReady = true;
-        _this.eventBus.dispatch('pagesloaded', {
-          source: _this,
-          pagesCount: pagesCount
-        });
-      });
-      var isOnePageRenderedResolved = false;
-      var onePageRenderedCapability = (0, _pdf.createPromiseCapability)();
-      this.onePageRendered = onePageRenderedCapability.promise;
-      var bindOnAfterAndBeforeDraw = function bindOnAfterAndBeforeDraw(pageView) {
-        pageView.onBeforeDraw = function () {
-          _this._buffer.push(pageView);
-        };
-        pageView.onAfterDraw = function () {
-          if (!isOnePageRenderedResolved) {
-            isOnePageRenderedResolved = true;
-            onePageRenderedCapability.resolve();
-          }
-        };
-      };
-      var firstPagePromise = pdfDocument.getPage(1);
-      this.firstPagePromise = firstPagePromise;
-      firstPagePromise.then(function (pdfPage) {
-        var scale = _this.currentScale;
-        var viewport = pdfPage.getViewport(scale * _ui_utils.CSS_UNITS);
-        for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
-          var textLayerFactory = null;
-          if (!_pdf.PDFJS.disableTextLayer) {
-            textLayerFactory = _this;
-          }
-          var pageView = new _pdf_page_view.PDFPageView({
-            container: _this.viewer,
-            eventBus: _this.eventBus,
-            id: pageNum,
-            scale: scale,
-            defaultViewport: viewport.clone(),
-            renderingQueue: _this.renderingQueue,
-            textLayerFactory: textLayerFactory,
-            annotationLayerFactory: _this,
-            enhanceTextSelection: _this.enhanceTextSelection,
-            renderInteractiveForms: _this.renderInteractiveForms,
-            renderer: _this.renderer,
-            l10n: _this.l10n
-          });
-          bindOnAfterAndBeforeDraw(pageView);
-          _this._pages.push(pageView);
-        }
-        onePageRenderedCapability.promise.then(function () {
-          if (_pdf.PDFJS.disableAutoFetch) {
-            pagesCapability.resolve();
-            return;
-          }
-          var getPagesLeft = pagesCount;
-
-          var _loop = function _loop(_pageNum) {
-            pdfDocument.getPage(_pageNum).then(function (pdfPage) {
-              var pageView = _this._pages[_pageNum - 1];
-              if (!pageView.pdfPage) {
-                pageView.setPdfPage(pdfPage);
-              }
-              _this.linkService.cachePageRef(_pageNum, pdfPage.ref);
-              if (--getPagesLeft === 0) {
-                pagesCapability.resolve();
-              }
-            }, function (reason) {
-              console.error('Unable to get page ' + _pageNum + ' to initialize viewer', reason);
-              if (--getPagesLeft === 0) {
-                pagesCapability.resolve();
-              }
-            });
-          };
-
-          for (var _pageNum = 1; _pageNum <= pagesCount; ++_pageNum) {
-            _loop(_pageNum);
-          }
-        });
-        _this.eventBus.dispatch('pagesinit', { source: _this });
-        if (_this.defaultRenderingQueue) {
-          _this.update();
-        }
-        if (_this.findController) {
-          _this.findController.resolveFirstPage();
-        }
-      }).catch(function (reason) {
-        console.error('Unable to initialize viewer', reason);
-      });
-    }
-  }, {
-    key: 'setPageLabels',
-    value: function setPageLabels(labels) {
-      if (!this.pdfDocument) {
-        return;
-      }
-      if (!labels) {
-        this._pageLabels = null;
-      } else if (!(labels instanceof Array && this.pdfDocument.numPages === labels.length)) {
-        this._pageLabels = null;
-        console.error('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);
-      }
-    }
-  }, {
-    key: '_resetView',
-    value: function _resetView() {
-      this._pages = [];
-      this._currentPageNumber = 1;
-      this._currentScale = _ui_utils.UNKNOWN_SCALE;
-      this._currentScaleValue = null;
-      this._pageLabels = null;
-      this._buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE);
-      this._location = null;
-      this._pagesRotation = 0;
-      this._pagesRequests = [];
-      this._pageViewsReady = false;
-      this.viewer.textContent = '';
-    }
-  }, {
-    key: '_scrollUpdate',
-    value: function _scrollUpdate() {
-      if (this.pagesCount === 0) {
-        return;
-      }
-      this.update();
-    }
-  }, {
-    key: '_setScaleDispatchEvent',
-    value: function _setScaleDispatchEvent(newScale, newValue) {
-      var preset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
-
-      var arg = {
-        source: this,
-        scale: newScale,
-        presetValue: preset ? newValue : undefined
-      };
-      this.eventBus.dispatch('scalechanging', arg);
-      this.eventBus.dispatch('scalechange', arg);
-    }
-  }, {
-    key: '_setScaleUpdatePages',
-    value: function _setScaleUpdatePages(newScale, newValue) {
-      var noScroll = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
-      var preset = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
+    key: '_scrollIntoView',
+    value: function _scrollIntoView(_ref) {
+      var pageDiv = _ref.pageDiv,
+          _ref$pageSpot = _ref.pageSpot,
+          pageSpot = _ref$pageSpot === undefined ? null : _ref$pageSpot;
 
-      this._currentScaleValue = newValue.toString();
-      if (isSameScale(this._currentScale, newScale)) {
-        if (preset) {
-          this._setScaleDispatchEvent(newScale, newValue, true);
-        }
-        return;
-      }
-      for (var i = 0, ii = this._pages.length; i < ii; i++) {
-        this._pages[i].update(newScale);
-      }
-      this._currentScale = newScale;
-      if (!noScroll) {
-        var page = this._currentPageNumber,
-            dest = void 0;
-        if (this._location && !_pdf.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();
-      }
+      (0, _ui_utils.scrollIntoView)(pageDiv, pageSpot);
     }
   }, {
-    key: '_setScale',
-    value: function _setScale(value) {
-      var noScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
-
-      var scale = parseFloat(value);
-      if (scale > 0) {
-        this._setScaleUpdatePages(scale, value, noScroll, false);
-      } else {
-        var currentPage = this._pages[this._currentPageNumber - 1];
-        if (!currentPage) {
-          return;
-        }
-        var hPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
-        var vPadding = this.isInPresentationMode || this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
-        var pageWidthScale = (this.container.clientWidth - hPadding) / currentPage.width * currentPage.scale;
-        var pageHeightScale = (this.container.clientHeight - vPadding) / currentPage.height * currentPage.scale;
-        switch (value) {
-          case 'page-actual':
-            scale = 1;
-            break;
-          case 'page-width':
-            scale = pageWidthScale;
-            break;
-          case 'page-height':
-            scale = pageHeightScale;
-            break;
-          case 'page-fit':
-            scale = Math.min(pageWidthScale, pageHeightScale);
-            break;
-          case 'auto':
-            var isLandscape = currentPage.width > currentPage.height;
-            var horizontalScale = isLandscape ? Math.min(pageHeightScale, pageWidthScale) : pageWidthScale;
-            scale = Math.min(_ui_utils.MAX_AUTO_SCALE, horizontalScale);
-            break;
-          default:
-            console.error('PDFViewer._setScale: "' + value + '" is an unknown zoom value.');
-            return;
-        }
-        this._setScaleUpdatePages(scale, value, noScroll, true);
-      }
-    }
-  }, {
-    key: '_resetCurrentPageView',
-    value: function _resetCurrentPageView() {
-      if (this.isInPresentationMode) {
-        this._setScale(this._currentScaleValue, true);
-      }
-      var pageView = this._pages[this._currentPageNumber - 1];
-      (0, _ui_utils.scrollIntoView)(pageView.div);
-    }
-  }, {
-    key: 'scrollPageIntoView',
-    value: function scrollPageIntoView(params) {
-      if (arguments.length > 1 || typeof params === 'number') {
-        console.error('Call of scrollPageIntoView() with obsolete signature.');
-        return;
-      }
-      if (!this.pdfDocument) {
-        return;
-      }
-      var pageNumber = params.pageNumber || 0;
-      var dest = params.destArray || null;
-      var allowNegativeOffset = params.allowNegativeOffset || false;
-      if (this.isInPresentationMode || !dest) {
-        this._setCurrentPageNumber(pageNumber, true);
-        return;
-      }
-      var pageView = this._pages[pageNumber - 1];
-      if (!pageView) {
-        console.error('PDFViewer.scrollPageIntoView: Invalid "pageNumber" parameter.');
-        return;
-      }
-      var x = 0,
-          y = 0;
-      var width = 0,
-          height = 0,
-          widthScale = void 0,
-          heightScale = void 0;
-      var changeOrientation = pageView.rotation % 180 === 0 ? false : true;
-      var pageWidth = (changeOrientation ? pageView.height : pageView.width) / pageView.scale / _ui_utils.CSS_UNITS;
-      var pageHeight = (changeOrientation ? pageView.width : pageView.height) / pageView.scale / _ui_utils.CSS_UNITS;
-      var scale = 0;
-      switch (dest[1].name) {
-        case 'XYZ':
-          x = dest[2];
-          y = dest[3];
-          scale = dest[4];
-          x = x !== null ? x : 0;
-          y = y !== null ? y : pageHeight;
-          break;
-        case 'Fit':
-        case 'FitB':
-          scale = 'page-fit';
-          break;
-        case 'FitH':
-        case 'FitBH':
-          y = dest[2];
-          scale = 'page-width';
-          if (y === null && this._location) {
-            x = this._location.left;
-            y = this._location.top;
-          }
-          break;
-        case 'FitV':
-        case 'FitBV':
-          x = dest[2];
-          width = pageWidth;
-          height = pageHeight;
-          scale = 'page-height';
-          break;
-        case 'FitR':
-          x = dest[2];
-          y = dest[3];
-          width = dest[4] - x;
-          height = dest[5] - y;
-          var hPadding = this.removePageBorders ? 0 : _ui_utils.SCROLLBAR_PADDING;
-          var vPadding = this.removePageBorders ? 0 : _ui_utils.VERTICAL_PADDING;
-          widthScale = (this.container.clientWidth - hPadding) / width / _ui_utils.CSS_UNITS;
-          heightScale = (this.container.clientHeight - vPadding) / height / _ui_utils.CSS_UNITS;
-          scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
-          break;
-        default:
-          console.error('PDFViewer.scrollPageIntoView: "' + dest[1].name + '" ' + 'is not a valid destination type.');
-          return;
-      }
-      if (scale && scale !== this._currentScale) {
-        this.currentScaleValue = scale;
-      } else if (this._currentScale === _ui_utils.UNKNOWN_SCALE) {
-        this.currentScaleValue = _ui_utils.DEFAULT_SCALE_VALUE;
-      }
-      if (scale === 'page-fit' && !dest[4]) {
-        (0, _ui_utils.scrollIntoView)(pageView.div);
-        return;
-      }
-      var boundingRect = [pageView.viewport.convertToViewportPoint(x, y), pageView.viewport.convertToViewportPoint(x + width, y + height)];
-      var left = Math.min(boundingRect[0][0], boundingRect[1][0]);
-      var top = Math.min(boundingRect[0][1], boundingRect[1][1]);
-      if (!allowNegativeOffset) {
-        left = Math.max(left, 0);
-        top = Math.max(top, 0);
+    key: '_getVisiblePages',
+    value: function _getVisiblePages() {
+      if (!this.isInPresentationMode) {
+        return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true);
       }
-      (0, _ui_utils.scrollIntoView)(pageView.div, {
-        left: left,
-        top: top
-      });
-    }
-  }, {
-    key: '_updateLocation',
-    value: function _updateLocation(firstPage) {
-      var currentScale = this._currentScale;
-      var currentScaleValue = this._currentScaleValue;
-      var normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ? Math.round(currentScale * 10000) / 100 : currentScaleValue;
-      var pageNumber = firstPage.id;
-      var pdfOpenParams = '#page=' + pageNumber;
-      pdfOpenParams += '&zoom=' + normalizedScaleValue;
-      var currentPageView = this._pages[pageNumber - 1];
-      var container = this.container;
-      var topLeft = currentPageView.getPagePoint(container.scrollLeft - firstPage.x, container.scrollTop - firstPage.y);
-      var intLeft = Math.round(topLeft[0]);
-      var intTop = Math.round(topLeft[1]);
-      pdfOpenParams += ',' + intLeft + ',' + intTop;
-      this._location = {
-        pageNumber: pageNumber,
-        scale: normalizedScaleValue,
-        top: intTop,
-        left: intLeft,
-        rotation: this._pagesRotation,
-        pdfOpenParams: pdfOpenParams
+      var currentPage = this._pages[this._currentPageNumber - 1];
+      var visible = [{
+        id: currentPage.id,
+        view: currentPage
+      }];
+      return {
+        first: currentPage,
+        last: currentPage,
+        views: visible
       };
     }
   }, {
     key: 'update',
     value: function update() {
       var visible = this._getVisiblePages();
-      var visiblePages = visible.views;
-      if (visiblePages.length === 0) {
+      var visiblePages = visible.views,
+          numVisiblePages = visiblePages.length;
+      if (numVisiblePages === 0) {
         return;
       }
-      var suggestedCacheSize = Math.max(DEFAULT_CACHE_SIZE, 2 * visiblePages.length + 1);
-      this._buffer.resize(suggestedCacheSize);
+      this._resizeBuffer(numVisiblePages);
       this.renderingQueue.renderHighestPriority(visible);
       var currentId = this._currentPageNumber;
-      var firstPage = visible.first;
       var stillFullyVisible = false;
-      for (var i = 0, ii = visiblePages.length; i < ii; ++i) {
+      for (var i = 0; i < numVisiblePages; ++i) {
         var page = visiblePages[i];
         if (page.percent < 100) {
           break;
@@ -536,293 +97,20 @@ var PDFViewer = function () {
       if (!this.isInPresentationMode) {
         this._setCurrentPageNumber(currentId);
       }
-      this._updateLocation(firstPage);
+      this._updateLocation(visible.first);
       this.eventBus.dispatch('updateviewarea', {
         source: this,
         location: this._location
       });
     }
   }, {
-    key: 'containsElement',
-    value: function containsElement(element) {
-      return this.container.contains(element);
-    }
-  }, {
-    key: 'focus',
-    value: function focus() {
-      this.container.focus();
-    }
-  }, {
-    key: '_getVisiblePages',
-    value: function _getVisiblePages() {
-      if (!this.isInPresentationMode) {
-        return (0, _ui_utils.getVisibleElements)(this.container, this._pages, true);
-      }
-      var visible = [];
-      var currentPage = this._pages[this._currentPageNumber - 1];
-      visible.push({
-        id: currentPage.id,
-        view: currentPage
-      });
-      return {
-        first: currentPage,
-        last: currentPage,
-        views: visible
-      };
-    }
-  }, {
-    key: 'cleanup',
-    value: function cleanup() {
-      for (var i = 0, ii = this._pages.length; i < ii; i++) {
-        if (this._pages[i] && this._pages[i].renderingState !== _pdf_rendering_queue.RenderingStates.FINISHED) {
-          this._pages[i].reset();
-        }
-      }
-    }
-  }, {
-    key: '_cancelRendering',
-    value: function _cancelRendering() {
-      for (var i = 0, ii = this._pages.length; i < ii; i++) {
-        if (this._pages[i]) {
-          this._pages[i].cancelRendering();
-        }
-      }
-    }
-  }, {
-    key: '_ensurePdfPageLoaded',
-    value: function _ensurePdfPageLoaded(pageView) {
-      var _this2 = this;
-
-      if (pageView.pdfPage) {
-        return Promise.resolve(pageView.pdfPage);
-      }
-      var pageNumber = pageView.id;
-      if (this._pagesRequests[pageNumber]) {
-        return this._pagesRequests[pageNumber];
-      }
-      var promise = this.pdfDocument.getPage(pageNumber).then(function (pdfPage) {
-        if (!pageView.pdfPage) {
-          pageView.setPdfPage(pdfPage);
-        }
-        _this2._pagesRequests[pageNumber] = null;
-        return pdfPage;
-      }).catch(function (reason) {
-        console.error('Unable to get page for page view', reason);
-        _this2._pagesRequests[pageNumber] = null;
-      });
-      this._pagesRequests[pageNumber] = promise;
-      return promise;
-    }
-  }, {
-    key: 'forceRendering',
-    value: function forceRendering(currentlyVisiblePages) {
-      var _this3 = this;
-
-      var visiblePages = currentlyVisiblePages || this._getVisiblePages();
-      var pageView = this.renderingQueue.getHighestPriority(visiblePages, this._pages, this.scroll.down);
-      if (pageView) {
-        this._ensurePdfPageLoaded(pageView).then(function () {
-          _this3.renderingQueue.renderView(pageView);
-        });
-        return true;
-      }
-      return false;
-    }
-  }, {
-    key: 'getPageTextContent',
-    value: function getPageTextContent(pageIndex) {
-      return this.pdfDocument.getPage(pageIndex + 1).then(function (page) {
-        return page.getTextContent({ normalizeWhitespace: true });
-      });
-    }
-  }, {
-    key: 'createTextLayerBuilder',
-    value: function createTextLayerBuilder(textLayerDiv, pageIndex, viewport) {
-      var enhanceTextSelection = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;
-
-      return new _text_layer_builder.TextLayerBuilder({
-        textLayerDiv: textLayerDiv,
-        eventBus: this.eventBus,
-        pageIndex: pageIndex,
-        viewport: viewport,
-        findController: this.isInPresentationMode ? null : this.findController,
-        enhanceTextSelection: this.isInPresentationMode ? false : enhanceTextSelection
-      });
-    }
-  }, {
-    key: 'createAnnotationLayerBuilder',
-    value: function createAnnotationLayerBuilder(pageDiv, pdfPage) {
-      var renderInteractiveForms = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
-      var l10n = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : _ui_utils.NullL10n;
-
-      return new _annotation_layer_builder.AnnotationLayerBuilder({
-        pageDiv: pageDiv,
-        pdfPage: pdfPage,
-        renderInteractiveForms: renderInteractiveForms,
-        linkService: this.linkService,
-        downloadManager: this.downloadManager,
-        l10n: l10n
-      });
-    }
-  }, {
-    key: 'setFindController',
-    value: function setFindController(findController) {
-      this.findController = findController;
-    }
-  }, {
-    key: 'getPagesOverview',
-    value: function getPagesOverview() {
-      var pagesOverview = this._pages.map(function (pageView) {
-        var viewport = pageView.pdfPage.getViewport(1);
-        return {
-          width: viewport.width,
-          height: viewport.height,
-          rotation: viewport.rotation
-        };
-      });
-      if (!this.enablePrintAutoRotate) {
-        return pagesOverview;
-      }
-      var isFirstPagePortrait = isPortraitOrientation(pagesOverview[0]);
-      return pagesOverview.map(function (size) {
-        if (isFirstPagePortrait === isPortraitOrientation(size)) {
-          return size;
-        }
-        return {
-          width: size.height,
-          height: size.width,
-          rotation: (size.rotation + 90) % 360
-        };
-      });
-    }
-  }, {
-    key: 'pagesCount',
-    get: function get() {
-      return this._pages.length;
-    }
-  }, {
-    key: 'pageViewsReady',
-    get: function get() {
-      return this._pageViewsReady;
-    }
-  }, {
-    key: 'currentPageNumber',
+    key: '_setDocumentViewerElement',
     get: function get() {
-      return this._currentPageNumber;
-    },
-    set: function set(val) {
-      if (!Number.isInteger(val)) {
-        throw new Error('Invalid page number.');
-      }
-      if (!this.pdfDocument) {
-        return;
-      }
-      this._setCurrentPageNumber(val, true);
-    }
-  }, {
-    key: 'currentPageLabel',
-    get: function get() {
-      return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
-    },
-    set: function set(val) {
-      var pageNumber = val | 0;
-      if (this._pageLabels) {
-        var i = this._pageLabels.indexOf(val);
-        if (i >= 0) {
-          pageNumber = i + 1;
-        }
-      }
-      this.currentPageNumber = pageNumber;
-    }
-  }, {
-    key: 'currentScale',
-    get: function get() {
-      return this._currentScale !== _ui_utils.UNKNOWN_SCALE ? this._currentScale : _ui_utils.DEFAULT_SCALE;
-    },
-    set: function set(val) {
-      if (isNaN(val)) {
-        throw new Error('Invalid numeric scale');
-      }
-      if (!this.pdfDocument) {
-        return;
-      }
-      this._setScale(val, false);
-    }
-  }, {
-    key: 'currentScaleValue',
-    get: function get() {
-      return this._currentScaleValue;
-    },
-    set: function set(val) {
-      if (!this.pdfDocument) {
-        return;
-      }
-      this._setScale(val, false);
-    }
-  }, {
-    key: 'pagesRotation',
-    get: function get() {
-      return this._pagesRotation;
-    },
-    set: function set(rotation) {
-      if (!(0, _ui_utils.isValidRotation)(rotation)) {
-        throw new Error('Invalid pages rotation angle.');
-      }
-      if (!this.pdfDocument) {
-        return;
-      }
-      if (this._pagesRotation === rotation) {
-        return;
-      }
-      this._pagesRotation = rotation;
-      var pageNumber = this._currentPageNumber;
-      for (var i = 0, ii = this._pages.length; i < ii; i++) {
-        var pageView = this._pages[i];
-        pageView.update(pageView.scale, rotation);
-      }
-      if (this._currentScaleValue) {
-        this._setScale(this._currentScaleValue, true);
-      }
-      this.eventBus.dispatch('rotationchanging', {
-        source: this,
-        pagesRotation: rotation,
-        pageNumber: pageNumber
-      });
-      if (this.defaultRenderingQueue) {
-        this.update();
-      }
-    }
-  }, {
-    key: 'isInPresentationMode',
-    get: function get() {
-      return this.presentationModeState === PresentationModeState.FULLSCREEN;
-    }
-  }, {
-    key: 'isChangingPresentationMode',
-    get: function get() {
-      return this.presentationModeState === PresentationModeState.CHANGING;
-    }
-  }, {
-    key: 'isHorizontalScrollbarEnabled',
-    get: function get() {
-      return this.isInPresentationMode ? false : this.container.scrollWidth > this.container.clientWidth;
-    }
-  }, {
-    key: 'hasEqualPageSizes',
-    get: function get() {
-      var firstPageView = this._pages[0];
-      for (var i = 1, ii = this._pages.length; i < ii; ++i) {
-        var pageView = this._pages[i];
-        if (pageView.width !== firstPageView.width || pageView.height !== firstPageView.height) {
-          return false;
-        }
-      }
-      return true;
+      return (0, _pdf.shadow)(this, '_setDocumentViewerElement', this.viewer);
     }
   }]);
 
   return PDFViewer;
-}();
+}(_base_viewer.BaseViewer);
 
-exports.PresentationModeState = PresentationModeState;
 exports.PDFViewer = PDFViewer;

+ 8 - 1
lib/web/ui_utils.js

@@ -17,7 +17,7 @@
 Object.defineProperty(exports, "__esModule", {
   value: true
 });
-exports.waitOnEventOrTimeout = exports.WaitOnType = exports.localized = exports.animationStarted = exports.normalizeWheelEventDelta = exports.binarySearchFirstItem = exports.watchScroll = exports.scrollIntoView = exports.getOutputScale = exports.approximateFraction = exports.roundToDivide = exports.getVisibleElements = exports.parseQueryString = exports.noContextMenuHandler = exports.getPDFFileNameFromURL = exports.ProgressBar = exports.EventBus = exports.NullL10n = exports.mozL10n = exports.RendererType = exports.cloneObj = exports.isValidRotation = exports.VERTICAL_PADDING = exports.SCROLLBAR_PADDING = exports.MAX_AUTO_SCALE = exports.UNKNOWN_SCALE = exports.MAX_SCALE = exports.MIN_SCALE = exports.DEFAULT_SCALE = exports.DEFAULT_SCALE_VALUE = exports.CSS_UNITS = undefined;
+exports.waitOnEventOrTimeout = exports.WaitOnType = exports.localized = exports.animationStarted = exports.normalizeWheelEventDelta = exports.binarySearchFirstItem = exports.watchScroll = exports.scrollIntoView = exports.getOutputScale = exports.approximateFraction = exports.roundToDivide = exports.getVisibleElements = exports.parseQueryString = exports.noContextMenuHandler = exports.getPDFFileNameFromURL = exports.ProgressBar = exports.EventBus = exports.NullL10n = exports.mozL10n = exports.RendererType = exports.PresentationModeState = exports.cloneObj = exports.isValidRotation = exports.VERTICAL_PADDING = exports.SCROLLBAR_PADDING = exports.MAX_AUTO_SCALE = exports.UNKNOWN_SCALE = exports.MAX_SCALE = exports.MIN_SCALE = exports.DEFAULT_SCALE = exports.DEFAULT_SCALE_VALUE = exports.CSS_UNITS = undefined;
 
 var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
 
@@ -36,6 +36,12 @@ var UNKNOWN_SCALE = 0;
 var MAX_AUTO_SCALE = 1.25;
 var SCROLLBAR_PADDING = 40;
 var VERTICAL_PADDING = 5;
+var PresentationModeState = {
+  UNKNOWN: 0,
+  NORMAL: 1,
+  CHANGING: 2,
+  FULLSCREEN: 3
+};
 var RendererType = {
   CANVAS: 'canvas',
   SVG: 'svg'
@@ -507,6 +513,7 @@ exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
 exports.VERTICAL_PADDING = VERTICAL_PADDING;
 exports.isValidRotation = isValidRotation;
 exports.cloneObj = cloneObj;
+exports.PresentationModeState = PresentationModeState;
 exports.RendererType = RendererType;
 exports.mozL10n = mozL10n;
 exports.NullL10n = NullL10n;

+ 1 - 1
package.json

@@ -1,6 +1,6 @@
 {
   "name": "pdfjs-dist",
-  "version": "1.9.593",
+  "version": "1.9.597",
   "main": "build/pdf.js",
   "description": "Generic build of Mozilla's PDF.js library.",
   "keywords": [

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+ 715 - 684
web/pdf_viewer.js


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+ 0 - 0
web/pdf_viewer.js.map


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