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+/* Copyright 2016 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';
+var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
+;
+var pdfjsWebLibs;
+{
+ pdfjsWebLibs = { pdfjsWebPDFJS: window.pdfjsDistBuildPdf };
+ (function () {
+ (function (root, factory) {
+ factory(root.pdfjsWebGrabToPan = {});
+ }(this, function (exports) {
+ /**
+ * Construct a GrabToPan instance for a given HTML element.
+ * @param options.element {Element}
+ * @param options.ignoreTarget {function} optional. See `ignoreTarget(node)`
+ * @param options.onActiveChanged {function(boolean)} optional. Called
+ * when grab-to-pan is (de)activated. The first argument is a boolean that
+ * shows whether grab-to-pan is activated.
+ */
+ function GrabToPan(options) {
+ this.element = options.element;
+ this.document = options.element.ownerDocument;
+ if (typeof options.ignoreTarget === 'function') {
+ this.ignoreTarget = options.ignoreTarget;
+ }
+ this.onActiveChanged = options.onActiveChanged;
+ // Bind the contexts to ensure that `this` always points to
+ // the GrabToPan instance.
+ this.activate = this.activate.bind(this);
+ this.deactivate = this.deactivate.bind(this);
+ this.toggle = this.toggle.bind(this);
+ this._onmousedown = this._onmousedown.bind(this);
+ this._onmousemove = this._onmousemove.bind(this);
+ this._endPan = this._endPan.bind(this);
+ // This overlay will be inserted in the document when the mouse moves during
+ // a grab operation, to ensure that the cursor has the desired appearance.
+ var overlay = this.overlay = document.createElement('div');
+ overlay.className = 'grab-to-pan-grabbing';
+ }
+ GrabToPan.prototype = {
+ /**
+ * Class name of element which can be grabbed
+ */
+ CSS_CLASS_GRAB: 'grab-to-pan-grab',
+ /**
+ * Bind a mousedown event to the element to enable grab-detection.
+ */
+ activate: function GrabToPan_activate() {
+ if (!this.active) {
+ this.active = true;
+ this.element.addEventListener('mousedown', this._onmousedown, true);
+ this.element.classList.add(this.CSS_CLASS_GRAB);
+ if (this.onActiveChanged) {
+ this.onActiveChanged(true);
+ }
+ }
+ },
+ /**
+ * Removes all events. Any pending pan session is immediately stopped.
+ */
+ deactivate: function GrabToPan_deactivate() {
+ if (this.active) {
+ this.active = false;
+ this.element.removeEventListener('mousedown', this._onmousedown, true);
+ this._endPan();
+ this.element.classList.remove(this.CSS_CLASS_GRAB);
+ if (this.onActiveChanged) {
+ this.onActiveChanged(false);
+ }
+ }
+ },
+ toggle: function GrabToPan_toggle() {
+ if (this.active) {
+ this.deactivate();
+ } else {
+ this.activate();
+ }
+ },
+ /**
+ * Whether to not pan if the target element is clicked.
+ * Override this method to change the default behaviour.
+ *
+ * @param node {Element} The target of the event
+ * @return {boolean} Whether to not react to the click event.
+ */
+ ignoreTarget: function GrabToPan_ignoreTarget(node) {
+ // Use matchesSelector to check whether the clicked element
+ // is (a child of) an input element / link
+ return node[matchesSelector]('a[href], a[href] *, input, textarea, button, button *, select, option');
+ },
+ /**
+ * @private
+ */
+ _onmousedown: function GrabToPan__onmousedown(event) {
+ if (event.button !== 0 || this.ignoreTarget(event.target)) {
+ return;
+ }
+ if (event.originalTarget) {
+ try {
+ event.originalTarget.tagName;
+ } catch (e) {
+ // Mozilla-specific: element is a scrollbar (XUL element)
+ return;
+ }
+ }
+ this.scrollLeftStart = this.element.scrollLeft;
+ this.scrollTopStart = this.element.scrollTop;
+ this.clientXStart = event.clientX;
+ this.clientYStart = event.clientY;
+ this.document.addEventListener('mousemove', this._onmousemove, true);
+ this.document.addEventListener('mouseup', this._endPan, true);
+ // When a scroll event occurs before a mousemove, assume that the user
+ // dragged a scrollbar (necessary for Opera Presto, Safari and IE)
+ // (not needed for Chrome/Firefox)
+ this.element.addEventListener('scroll', this._endPan, true);
+ event.preventDefault();
+ event.stopPropagation();
+ var focusedElement = document.activeElement;
+ if (focusedElement && !focusedElement.contains(event.target)) {
+ focusedElement.blur();
+ }
+ },
+ /**
+ * @private
+ */
+ _onmousemove: function GrabToPan__onmousemove(event) {
+ this.element.removeEventListener('scroll', this._endPan, true);
+ if (isLeftMouseReleased(event)) {
+ this._endPan();
+ return;
+ }
+ var xDiff = event.clientX - this.clientXStart;
+ var yDiff = event.clientY - this.clientYStart;
+ var scrollTop = this.scrollTopStart - yDiff;
+ var scrollLeft = this.scrollLeftStart - xDiff;
+ if (this.element.scrollTo) {
+ this.element.scrollTo({
+ top: scrollTop,
+ left: scrollLeft,
+ behavior: 'instant'
+ });
+ } else {
+ this.element.scrollTop = scrollTop;
+ this.element.scrollLeft = scrollLeft;
+ }
+ if (!this.overlay.parentNode) {
+ document.body.appendChild(this.overlay);
+ }
+ },
+ /**
+ * @private
+ */
+ _endPan: function GrabToPan__endPan() {
+ this.element.removeEventListener('scroll', this._endPan, true);
+ this.document.removeEventListener('mousemove', this._onmousemove, true);
+ this.document.removeEventListener('mouseup', this._endPan, true);
+ if (this.overlay.parentNode) {
+ this.overlay.parentNode.removeChild(this.overlay);
+ }
+ }
+ };
+ // Get the correct (vendor-prefixed) name of the matches method.
+ var matchesSelector;
+ [
+ 'webkitM',
+ 'mozM',
+ 'msM',
+ 'oM',
+ 'm'
+ ].some(function (prefix) {
+ var name = prefix + 'atches';
+ if (name in document.documentElement) {
+ matchesSelector = name;
+ }
+ name += 'Selector';
+ if (name in document.documentElement) {
+ matchesSelector = name;
+ }
+ return matchesSelector;
+ });
+ // If found, then truthy, and [].some() ends.
+ // Browser sniffing because it's impossible to feature-detect
+ // whether event.which for onmousemove is reliable
+ var isNotIEorIsIE10plus = !document.documentMode || document.documentMode > 9;
+ var chrome = window.chrome;
+ var isChrome15OrOpera15plus = chrome && (chrome.webstore || chrome.app);
+ // ^ Chrome 15+ ^ Opera 15+
+ var isSafari6plus = /Apple/.test(navigator.vendor) && /Version\/([6-9]\d*|[1-5]\d+)/.test(navigator.userAgent);
+ /**
+ * Whether the left mouse is not pressed.
+ * @param event {MouseEvent}
+ * @return {boolean} True if the left mouse button is not pressed.
+ * False if unsure or if the left mouse button is pressed.
+ */
+ function isLeftMouseReleased(event) {
+ if ('buttons' in event && isNotIEorIsIE10plus) {
+ // http://www.w3.org/TR/DOM-Level-3-Events/#events-MouseEvent-buttons
+ // Firefox 15+
+ // Internet Explorer 10+
+ return !(event.buttons & 1);
+ }
+ if (isChrome15OrOpera15plus || isSafari6plus) {
+ // Chrome 14+
+ // Opera 15+
+ // Safari 6.0+
+ return event.which === 0;
+ }
+ }
+ exports.GrabToPan = GrabToPan;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebOverlayManager = {});
+ }(this, function (exports) {
+ var OverlayManager = {
+ overlays: {},
+ active: null,
+ /**
+ * @param {string} name The name of the overlay that is registered.
+ * @param {HTMLDivElement} element The overlay's DOM element.
+ * @param {function} callerCloseMethod (optional) The method that, if present,
+ * will call OverlayManager.close from the Object
+ * registering the overlay. Access to this method is
+ * necessary in order to run cleanup code when e.g.
+ * the overlay is force closed. The default is null.
+ * @param {boolean} canForceClose (optional) Indicates if opening the overlay
+ * will close an active overlay. The default is false.
+ * @returns {Promise} A promise that is resolved when the overlay has been
+ * registered.
+ */
+ register: function overlayManagerRegister(name, element, callerCloseMethod, canForceClose) {
+ return new Promise(function (resolve) {
+ var container;
+ if (!name || !element || !(container = element.parentNode)) {
+ throw new Error('Not enough parameters.');
+ } else if (this.overlays[name]) {
+ throw new Error('The overlay is already registered.');
+ }
+ this.overlays[name] = {
+ element: element,
+ container: container,
+ callerCloseMethod: callerCloseMethod || null,
+ canForceClose: canForceClose || false
+ };
+ resolve();
+ }.bind(this));
+ },
+ /**
+ * @param {string} name The name of the overlay that is unregistered.
+ * @returns {Promise} A promise that is resolved when the overlay has been
+ * unregistered.
+ */
+ unregister: function overlayManagerUnregister(name) {
+ return new Promise(function (resolve) {
+ if (!this.overlays[name]) {
+ throw new Error('The overlay does not exist.');
+ } else if (this.active === name) {
+ throw new Error('The overlay cannot be removed while it is active.');
+ }
+ delete this.overlays[name];
+ resolve();
+ }.bind(this));
+ },
+ /**
+ * @param {string} name The name of the overlay that should be opened.
+ * @returns {Promise} A promise that is resolved when the overlay has been
+ * opened.
+ */
+ open: function overlayManagerOpen(name) {
+ return new Promise(function (resolve) {
+ if (!this.overlays[name]) {
+ throw new Error('The overlay does not exist.');
+ } else if (this.active) {
+ if (this.overlays[name].canForceClose) {
+ this._closeThroughCaller();
+ } else if (this.active === name) {
+ throw new Error('The overlay is already active.');
+ } else {
+ throw new Error('Another overlay is currently active.');
+ }
+ }
+ this.active = name;
+ this.overlays[this.active].element.classList.remove('hidden');
+ this.overlays[this.active].container.classList.remove('hidden');
+ window.addEventListener('keydown', this._keyDown);
+ resolve();
+ }.bind(this));
+ },
+ /**
+ * @param {string} name The name of the overlay that should be closed.
+ * @returns {Promise} A promise that is resolved when the overlay has been
+ * closed.
+ */
+ close: function overlayManagerClose(name) {
+ return new Promise(function (resolve) {
+ if (!this.overlays[name]) {
+ throw new Error('The overlay does not exist.');
+ } else if (!this.active) {
+ throw new Error('The overlay is currently not active.');
+ } else if (this.active !== name) {
+ throw new Error('Another overlay is currently active.');
+ }
+ this.overlays[this.active].container.classList.add('hidden');
+ this.overlays[this.active].element.classList.add('hidden');
+ this.active = null;
+ window.removeEventListener('keydown', this._keyDown);
+ resolve();
+ }.bind(this));
+ },
+ /**
+ * @private
+ */
+ _keyDown: function overlayManager_keyDown(evt) {
+ var self = OverlayManager;
+ if (self.active && evt.keyCode === 27) {
+ // Esc key.
+ self._closeThroughCaller();
+ evt.preventDefault();
+ }
+ },
+ /**
+ * @private
+ */
+ _closeThroughCaller: function overlayManager_closeThroughCaller() {
+ if (this.overlays[this.active].callerCloseMethod) {
+ this.overlays[this.active].callerCloseMethod();
+ }
+ if (this.active) {
+ this.close(this.active);
+ }
+ }
+ };
+ exports.OverlayManager = OverlayManager;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFRenderingQueue = {});
+ }(this, function (exports) {
+ var CLEANUP_TIMEOUT = 30000;
+ var RenderingStates = {
+ INITIAL: 0,
+ RUNNING: 1,
+ PAUSED: 2,
+ FINISHED: 3
+ };
+ /**
+ * Controls rendering of the views for pages and thumbnails.
+ * @class
+ */
+ var PDFRenderingQueue = function PDFRenderingQueueClosure() {
+ /**
+ * @constructs
+ */
+ 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 = /** @lends PDFRenderingQueue.prototype */
+ {
+ /**
+ * @param {PDFViewer} pdfViewer
+ */
+ setViewer: function PDFRenderingQueue_setViewer(pdfViewer) {
+ this.pdfViewer = pdfViewer;
+ },
+ /**
+ * @param {PDFThumbnailViewer} pdfThumbnailViewer
+ */
+ setThumbnailViewer: function PDFRenderingQueue_setThumbnailViewer(pdfThumbnailViewer) {
+ this.pdfThumbnailViewer = pdfThumbnailViewer;
+ },
+ /**
+ * @param {IRenderableView} view
+ * @returns {boolean}
+ */
+ isHighestPriority: function PDFRenderingQueue_isHighestPriority(view) {
+ return this.highestPriorityPage === view.renderingId;
+ },
+ renderHighestPriority: function PDFRenderingQueue_renderHighestPriority(currentlyVisiblePages) {
+ if (this.idleTimeout) {
+ clearTimeout(this.idleTimeout);
+ this.idleTimeout = null;
+ }
+ // Pages have a higher priority than thumbnails, so check them first.
+ if (this.pdfViewer.forceRendering(currentlyVisiblePages)) {
+ return;
+ }
+ // No pages needed rendering so check thumbnails.
+ if (this.pdfThumbnailViewer && this.isThumbnailViewEnabled) {
+ if (this.pdfThumbnailViewer.forceRendering()) {
+ return;
+ }
+ }
+ if (this.printing) {
+ // If printing is currently ongoing do not reschedule cleanup.
+ return;
+ }
+ if (this.onIdle) {
+ this.idleTimeout = setTimeout(this.onIdle.bind(this), CLEANUP_TIMEOUT);
+ }
+ },
+ getHighestPriority: function PDFRenderingQueue_getHighestPriority(visible, views, scrolledDown) {
+ // The state has changed figure out which page has the highest priority to
+ // render next (if any).
+ // Priority:
+ // 1 visible pages
+ // 2 if last scrolled down page after the visible pages
+ // 2 if last scrolled up page before the visible pages
+ 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;
+ }
+ }
+ // All the visible views have rendered, try to render next/previous pages.
+ if (scrolledDown) {
+ var nextPageIndex = visible.last.id;
+ // ID's start at 1 so no need to add 1.
+ 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];
+ }
+ }
+ // Everything that needs to be rendered has been.
+ return null;
+ },
+ /**
+ * @param {IRenderableView} view
+ * @returns {boolean}
+ */
+ isViewFinished: function PDFRenderingQueue_isViewFinished(view) {
+ return view.renderingState === RenderingStates.FINISHED;
+ },
+ /**
+ * Render a page or thumbnail view. This calls the appropriate function
+ * based on the views state. If the view is already rendered it will return
+ * false.
+ * @param {IRenderableView} view
+ */
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPreferences = {});
+ }(this, function (exports) {
+ var defaultPreferences;
+ defaultPreferences = Promise.resolve({
+ "showPreviousViewOnLoad": true,
+ "defaultZoomValue": "",
+ "sidebarViewOnLoad": 0,
+ "enableHandToolOnLoad": false,
+ "enableWebGL": false,
+ "pdfBugEnabled": false,
+ "disableRange": false,
+ "disableStream": false,
+ "disableAutoFetch": false,
+ "disableFontFace": false,
+ "disableTextLayer": false,
+ "useOnlyCssZoom": false,
+ "externalLinkTarget": 0,
+ "enhanceTextSelection": false,
+ "renderInteractiveForms": false,
+ "disablePageLabels": false
+ });
+ function cloneObj(obj) {
+ var result = {};
+ for (var i in obj) {
+ if (Object.prototype.hasOwnProperty.call(obj, i)) {
+ result[i] = obj[i];
+ }
+ }
+ return result;
+ }
+ /**
+ * Preferences - Utility for storing persistent settings.
+ * Used for settings that should be applied to all opened documents,
+ * or every time the viewer is loaded.
+ */
+ var Preferences = {
+ prefs: null,
+ isInitializedPromiseResolved: false,
+ initializedPromise: null,
+ /**
+ * Initialize and fetch the current preference values from storage.
+ * @return {Promise} A promise that is resolved when the preferences
+ * have been initialized.
+ */
+ initialize: function preferencesInitialize() {
+ return this.initializedPromise = defaultPreferences.then(function (defaults) {
+ Object.defineProperty(this, 'defaults', {
+ value: Object.freeze(defaults),
+ writable: false,
+ enumerable: true,
+ configurable: false
+ });
+ this.prefs = cloneObj(defaults);
+ return this._readFromStorage(defaults);
+ }.bind(this)).then(function (prefObj) {
+ this.isInitializedPromiseResolved = true;
+ if (prefObj) {
+ this.prefs = prefObj;
+ }
+ }.bind(this));
+ },
+ /**
+ * Stub function for writing preferences to storage.
+ * NOTE: This should be overridden by a build-specific function defined below.
+ * @param {Object} prefObj The preferences that should be written to storage.
+ * @return {Promise} A promise that is resolved when the preference values
+ * have been written.
+ */
+ _writeToStorage: function preferences_writeToStorage(prefObj) {
+ return Promise.resolve();
+ },
+ /**
+ * Stub function for reading preferences from storage.
+ * NOTE: This should be overridden by a build-specific function defined below.
+ * @param {Object} prefObj The preferences that should be read from storage.
+ * @return {Promise} A promise that is resolved with an {Object} containing
+ * the preferences that have been read.
+ */
+ _readFromStorage: function preferences_readFromStorage(prefObj) {
+ return Promise.resolve();
+ },
+ /**
+ * Reset the preferences to their default values and update storage.
+ * @return {Promise} A promise that is resolved when the preference values
+ * have been reset.
+ */
+ reset: function preferencesReset() {
+ return this.initializedPromise.then(function () {
+ this.prefs = cloneObj(this.defaults);
+ return this._writeToStorage(this.defaults);
+ }.bind(this));
+ },
+ /**
+ * Replace the current preference values with the ones from storage.
+ * @return {Promise} A promise that is resolved when the preference values
+ * have been updated.
+ */
+ reload: function preferencesReload() {
+ return this.initializedPromise.then(function () {
+ this._readFromStorage(this.defaults).then(function (prefObj) {
+ if (prefObj) {
+ this.prefs = prefObj;
+ }
+ }.bind(this));
+ }.bind(this));
+ },
+ /**
+ * Set the value of a preference.
+ * @param {string} name The name of the preference that should be changed.
+ * @param {boolean|number|string} value The new value of the preference.
+ * @return {Promise} A promise that is resolved when the value has been set,
+ * provided that the preference exists and the types match.
+ */
+ set: function preferencesSet(name, value) {
+ return this.initializedPromise.then(function () {
+ if (this.defaults[name] === undefined) {
+ throw new Error('preferencesSet: \'' + name + '\' is undefined.');
+ } else if (value === undefined) {
+ throw new Error('preferencesSet: no value is specified.');
+ }
+ var valueType = typeof value;
+ var defaultType = typeof this.defaults[name];
+ if (valueType !== defaultType) {
+ if (valueType === 'number' && defaultType === 'string') {
+ value = value.toString();
+ } else {
+ throw new Error('Preferences_set: \'' + value + '\' is a \"' + valueType + '\", expected \"' + defaultType + '\".');
+ }
+ } else {
+ if (valueType === 'number' && (value | 0) !== value) {
+ throw new Error('Preferences_set: \'' + value + '\' must be an \"integer\".');
+ }
+ }
+ this.prefs[name] = value;
+ return this._writeToStorage(this.prefs);
+ }.bind(this));
+ },
+ /**
+ * Get the value of a preference.
+ * @param {string} name The name of the preference whose value is requested.
+ * @return {Promise} A promise that is resolved with a {boolean|number|string}
+ * containing the value of the preference.
+ */
+ get: function preferencesGet(name) {
+ return this.initializedPromise.then(function () {
+ var defaultValue = this.defaults[name];
+ if (defaultValue === undefined) {
+ throw new Error('preferencesGet: \'' + name + '\' is undefined.');
+ } else {
+ var prefValue = this.prefs[name];
+ if (prefValue !== undefined) {
+ return prefValue;
+ }
+ }
+ return defaultValue;
+ }.bind(this));
+ }
+ };
+ exports.Preferences = Preferences;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebViewHistory = {});
+ }(this, function (exports) {
+ var DEFAULT_VIEW_HISTORY_CACHE_SIZE = 20;
+ /**
+ * View History - This is a utility for saving various view parameters for
+ * recently opened files.
+ *
+ * The way that the view parameters are stored depends on how PDF.js is built,
+ * for 'gulp <flag>' the following cases exist:
+ * - FIREFOX or MOZCENTRAL - uses sessionStorage.
+ * - GENERIC or CHROME - uses localStorage, if it is available.
+ */
+ var ViewHistory = function ViewHistoryClosure() {
+ function ViewHistory(fingerprint, cacheSize) {
+ this.fingerprint = fingerprint;
+ this.cacheSize = cacheSize || DEFAULT_VIEW_HISTORY_CACHE_SIZE;
+ this.isInitializedPromiseResolved = false;
+ this.initializedPromise = this._readFromStorage().then(function (databaseStr) {
+ this.isInitializedPromiseResolved = true;
+ var database = JSON.parse(databaseStr || '{}');
+ if (!('files' in database)) {
+ database.files = [];
+ }
+ if (database.files.length >= this.cacheSize) {
+ database.files.shift();
+ }
+ var index;
+ for (var i = 0, length = database.files.length; i < length; i++) {
+ var branch = database.files[i];
+ if (branch.fingerprint === this.fingerprint) {
+ index = i;
+ break;
+ }
+ }
+ if (typeof index !== 'number') {
+ index = database.files.push({ fingerprint: this.fingerprint }) - 1;
+ }
+ this.file = database.files[index];
+ this.database = database;
+ }.bind(this));
+ }
+ ViewHistory.prototype = {
+ _writeToStorage: function ViewHistory_writeToStorage() {
+ return new Promise(function (resolve) {
+ var databaseStr = JSON.stringify(this.database);
+ sessionStorage.setItem('pdfjsHistory', databaseStr);
+ resolve();
+ }.bind(this));
+ },
+ _readFromStorage: function ViewHistory_readFromStorage() {
+ return new Promise(function (resolve) {
+ resolve(sessionStorage.getItem('pdfjsHistory'));
+ });
+ },
+ set: function ViewHistory_set(name, val) {
+ if (!this.isInitializedPromiseResolved) {
+ return;
+ }
+ this.file[name] = val;
+ return this._writeToStorage();
+ },
+ setMultiple: function ViewHistory_setMultiple(properties) {
+ if (!this.isInitializedPromiseResolved) {
+ return;
+ }
+ for (var name in properties) {
+ this.file[name] = properties[name];
+ }
+ return this._writeToStorage();
+ },
+ get: function ViewHistory_get(name, defaultValue) {
+ if (!this.isInitializedPromiseResolved) {
+ return defaultValue;
+ }
+ return this.file[name] || defaultValue;
+ }
+ };
+ return ViewHistory;
+ }();
+ exports.ViewHistory = ViewHistory;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebDownloadManager = {}, root.pdfjsWebPDFJS);
+ }(this, function (exports, pdfjsLib) {
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebHandTool = {}, root.pdfjsWebGrabToPan, root.pdfjsWebPreferences);
+ }(this, function (exports, grabToPan, preferences) {
+ var GrabToPan = grabToPan.GrabToPan;
+ var Preferences = preferences.Preferences;
+ /**
+ * @typedef {Object} HandToolOptions
+ * @property {HTMLDivElement} container - The document container.
+ * @property {EventBus} eventBus - The application event bus.
+ */
+ /**
+ * @class
+ */
+ var HandTool = function HandToolClosure() {
+ /**
+ * @constructs HandTool
+ * @param {HandToolOptions} options
+ */
+ function HandTool(options) {
+ this.container = options.container;
+ this.eventBus = options.eventBus;
+ this.wasActive = false;
+ this.handTool = new GrabToPan({
+ element: this.container,
+ onActiveChanged: function (isActive) {
+ this.eventBus.dispatch('handtoolchanged', { isActive: isActive });
+ }.bind(this)
+ });
+ this.eventBus.on('togglehandtool', this.toggle.bind(this));
+ this.eventBus.on('localized', function (e) {
+ Preferences.get('enableHandToolOnLoad').then(function resolved(value) {
+ if (value) {
+ this.handTool.activate();
+ }
+ }.bind(this), function rejected(reason) {
+ });
+ }.bind(this));
+ this.eventBus.on('presentationmodechanged', function (e) {
+ if (e.switchInProgress) {
+ return;
+ }
+ if (e.active) {
+ this.enterPresentationMode();
+ } else {
+ this.exitPresentationMode();
+ }
+ }.bind(this));
+ }
+ HandTool.prototype = {
+ /**
+ * @return {boolean}
+ */
+ get isActive() {
+ return !!this.handTool.active;
+ },
+ toggle: function HandTool_toggle() {
+ this.handTool.toggle();
+ },
+ enterPresentationMode: function HandTool_enterPresentationMode() {
+ if (this.isActive) {
+ this.wasActive = true;
+ this.handTool.deactivate();
+ }
+ },
+ exitPresentationMode: function HandTool_exitPresentationMode() {
+ if (this.wasActive) {
+ this.wasActive = false;
+ this.handTool.activate();
+ }
+ }
+ };
+ return HandTool;
+ }();
+ exports.HandTool = HandTool;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFAttachmentViewer = {}, root.pdfjsWebPDFJS);
+ }(this, function (exports, pdfjsLib) {
+ /**
+ * @typedef {Object} PDFAttachmentViewerOptions
+ * @property {HTMLDivElement} container - The viewer element.
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {DownloadManager} downloadManager - The download manager.
+ */
+ /**
+ * @typedef {Object} PDFAttachmentViewerRenderParameters
+ * @property {Array|null} attachments - An array of attachment objects.
+ */
+ /**
+ * @class
+ */
+ var PDFAttachmentViewer = function PDFAttachmentViewerClosure() {
+ /**
+ * @constructs PDFAttachmentViewer
+ * @param {PDFAttachmentViewerOptions} options
+ */
+ function PDFAttachmentViewer(options) {
+ this.attachments = null;
+ this.container = options.container;
+ this.eventBus = options.eventBus;
+ this.downloadManager = options.downloadManager;
+ }
+ PDFAttachmentViewer.prototype = {
+ reset: function PDFAttachmentViewer_reset() {
+ this.attachments = null;
+ var container = this.container;
+ while (container.firstChild) {
+ container.removeChild(container.firstChild);
+ }
+ },
+ /**
+ * @private
+ */
+ _dispatchEvent: function PDFAttachmentViewer_dispatchEvent(attachmentsCount) {
+ this.eventBus.dispatch('attachmentsloaded', {
+ source: this,
+ attachmentsCount: attachmentsCount
+ });
+ },
+ /**
+ * @private
+ */
+ _bindLink: function PDFAttachmentViewer_bindLink(button, content, filename) {
+ button.onclick = function downloadFile(e) {
+ this.downloadManager.downloadData(content, filename, '');
+ return false;
+ }.bind(this);
+ },
+ /**
+ * @param {PDFAttachmentViewerRenderParameters} params
+ */
+ render: function PDFAttachmentViewer_render(params) {
+ var attachments = params && params.attachments || null;
+ var attachmentsCount = 0;
+ if (this.attachments) {
+ this.reset();
+ }
+ this.attachments = attachments;
+ if (!attachments) {
+ this._dispatchEvent(attachmentsCount);
+ return;
+ }
+ var names = Object.keys(attachments).sort(function (a, b) {
+ return a.toLowerCase().localeCompare(b.toLowerCase());
+ });
+ attachmentsCount = names.length;
+ for (var i = 0; i < attachmentsCount; i++) {
+ var item = attachments[names[i]];
+ var filename = pdfjsLib.getFilenameFromUrl(item.filename);
+ var div = document.createElement('div');
+ div.className = 'attachmentsItem';
+ var button = document.createElement('button');
+ this._bindLink(button, item.content, filename);
+ button.textContent = pdfjsLib.removeNullCharacters(filename);
+ div.appendChild(button);
+ this.container.appendChild(div);
+ }
+ this._dispatchEvent(attachmentsCount);
+ }
+ };
+ return PDFAttachmentViewer;
+ }();
+ exports.PDFAttachmentViewer = PDFAttachmentViewer;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFOutlineViewer = {}, root.pdfjsWebPDFJS);
+ }(this, function (exports, pdfjsLib) {
+ var PDFJS = pdfjsLib.PDFJS;
+ var DEFAULT_TITLE = '\u2013';
+ /**
+ * @typedef {Object} PDFOutlineViewerOptions
+ * @property {HTMLDivElement} container - The viewer element.
+ * @property {IPDFLinkService} linkService - The navigation/linking service.
+ * @property {EventBus} eventBus - The application event bus.
+ */
+ /**
+ * @typedef {Object} PDFOutlineViewerRenderParameters
+ * @property {Array|null} outline - An array of outline objects.
+ */
+ /**
+ * @class
+ */
+ var PDFOutlineViewer = function PDFOutlineViewerClosure() {
+ /**
+ * @constructs PDFOutlineViewer
+ * @param {PDFOutlineViewerOptions} options
+ */
+ function PDFOutlineViewer(options) {
+ this.outline = null;
+ this.lastToggleIsShow = true;
+ this.container = options.container;
+ this.linkService = options.linkService;
+ this.eventBus = options.eventBus;
+ }
+ PDFOutlineViewer.prototype = {
+ reset: function PDFOutlineViewer_reset() {
+ this.outline = null;
+ this.lastToggleIsShow = true;
+ var container = this.container;
+ while (container.firstChild) {
+ container.removeChild(container.firstChild);
+ }
+ },
+ /**
+ * @private
+ */
+ _dispatchEvent: function PDFOutlineViewer_dispatchEvent(outlineCount) {
+ this.eventBus.dispatch('outlineloaded', {
+ source: this,
+ outlineCount: outlineCount
+ });
+ },
+ /**
+ * @private
+ */
+ _bindLink: function PDFOutlineViewer_bindLink(element, item) {
+ if (item.url) {
+ pdfjsLib.addLinkAttributes(element, {
+ url: item.url,
+ target: item.newWindow ? PDFJS.LinkTarget.BLANK : undefined
+ });
+ return;
+ }
+ var self = this, destination = item.dest;
+ element.href = self.linkService.getDestinationHash(destination);
+ element.onclick = function () {
+ if (destination) {
+ self.linkService.navigateTo(destination);
+ }
+ return false;
+ };
+ },
+ /**
+ * @private
+ */
+ _setStyles: function PDFOutlineViewer_setStyles(element, item) {
+ var styleStr = '';
+ if (item.bold) {
+ styleStr += 'font-weight: bold;';
+ }
+ if (item.italic) {
+ styleStr += 'font-style: italic;';
+ }
+ if (styleStr) {
+ element.setAttribute('style', styleStr);
+ }
+ },
+ /**
+ * Prepend a button before an outline item which allows the user to toggle
+ * the visibility of all outline items at that level.
+ *
+ * @private
+ */
+ _addToggleButton: function PDFOutlineViewer_addToggleButton(div) {
+ var toggler = document.createElement('div');
+ toggler.className = 'outlineItemToggler';
+ toggler.onclick = function (event) {
+ event.stopPropagation();
+ toggler.classList.toggle('outlineItemsHidden');
+ if (event.shiftKey) {
+ var shouldShowAll = !toggler.classList.contains('outlineItemsHidden');
+ this._toggleOutlineItem(div, shouldShowAll);
+ }
+ }.bind(this);
+ div.insertBefore(toggler, div.firstChild);
+ },
+ /**
+ * Toggle the visibility of the subtree of an outline item.
+ *
+ * @param {Element} root - the root of the outline (sub)tree.
+ * @param {boolean} show - whether to show the outline (sub)tree. If false,
+ * the outline subtree rooted at |root| will be collapsed.
+ *
+ * @private
+ */
+ _toggleOutlineItem: function PDFOutlineViewer_toggleOutlineItem(root, show) {
+ this.lastToggleIsShow = show;
+ var togglers = root.querySelectorAll('.outlineItemToggler');
+ for (var i = 0, ii = togglers.length; i < ii; ++i) {
+ togglers[i].classList[show ? 'remove' : 'add']('outlineItemsHidden');
+ }
+ },
+ /**
+ * Collapse or expand all subtrees of the outline.
+ */
+ toggleOutlineTree: function PDFOutlineViewer_toggleOutlineTree() {
+ if (!this.outline) {
+ return;
+ }
+ this._toggleOutlineItem(this.container, !this.lastToggleIsShow);
+ },
+ /**
+ * @param {PDFOutlineViewerRenderParameters} params
+ */
+ render: function PDFOutlineViewer_render(params) {
+ var outline = params && params.outline || null;
+ var outlineCount = 0;
+ if (this.outline) {
+ this.reset();
+ }
+ this.outline = outline;
+ if (!outline) {
+ this._dispatchEvent(outlineCount);
+ return;
+ }
+ var fragment = document.createDocumentFragment();
+ var queue = [{
+ parent: fragment,
+ items: this.outline
+ }];
+ var hasAnyNesting = false;
+ while (queue.length > 0) {
+ var levelData = queue.shift();
+ for (var i = 0, len = levelData.items.length; i < len; i++) {
+ var item = levelData.items[i];
+ var div = document.createElement('div');
+ div.className = 'outlineItem';
+ var element = document.createElement('a');
+ this._bindLink(element, item);
+ this._setStyles(element, item);
+ element.textContent = pdfjsLib.removeNullCharacters(item.title) || DEFAULT_TITLE;
+ div.appendChild(element);
+ if (item.items.length > 0) {
+ hasAnyNesting = true;
+ this._addToggleButton(div);
+ var itemsDiv = document.createElement('div');
+ itemsDiv.className = 'outlineItems';
+ div.appendChild(itemsDiv);
+ queue.push({
+ parent: itemsDiv,
+ items: item.items
+ });
+ }
+ levelData.parent.appendChild(div);
+ outlineCount++;
+ }
+ }
+ if (hasAnyNesting) {
+ this.container.classList.add('outlineWithDeepNesting');
+ }
+ this.container.appendChild(fragment);
+ this._dispatchEvent(outlineCount);
+ }
+ };
+ return PDFOutlineViewer;
+ }();
+ exports.PDFOutlineViewer = PDFOutlineViewer;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFSidebar = {}, root.pdfjsWebPDFRenderingQueue);
+ }(this, function (exports, pdfRenderingQueue) {
+ var RenderingStates = pdfRenderingQueue.RenderingStates;
+ var SidebarView = {
+ NONE: 0,
+ THUMBS: 1,
+ OUTLINE: 2,
+ ATTACHMENTS: 3
+ };
+ /**
+ * @typedef {Object} PDFSidebarOptions
+ * @property {PDFViewer} pdfViewer - The document viewer.
+ * @property {PDFThumbnailViewer} pdfThumbnailViewer - The thumbnail viewer.
+ * @property {PDFOutlineViewer} pdfOutlineViewer - The outline viewer.
+ * @property {HTMLDivElement} mainContainer - The main container
+ * (in which the viewer element is placed).
+ * @property {HTMLDivElement} outerContainer - The outer container
+ * (encasing both the viewer and sidebar elements).
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {HTMLButtonElement} toggleButton - The button used for
+ * opening/closing the sidebar.
+ * @property {HTMLButtonElement} thumbnailButton - The button used to show
+ * the thumbnail view.
+ * @property {HTMLButtonElement} outlineButton - The button used to show
+ * the outline view.
+ * @property {HTMLButtonElement} attachmentsButton - The button used to show
+ * the attachments view.
+ * @property {HTMLDivElement} thumbnailView - The container in which
+ * the thumbnails are placed.
+ * @property {HTMLDivElement} outlineView - The container in which
+ * the outline is placed.
+ * @property {HTMLDivElement} attachmentsView - The container in which
+ * the attachments are placed.
+ */
+ /**
+ * @class
+ */
+ var PDFSidebar = function PDFSidebarClosure() {
+ /**
+ * @constructs PDFSidebar
+ * @param {PDFSidebarOptions} options
+ */
+ function PDFSidebar(options) {
+ this.isOpen = false;
+ this.active = SidebarView.THUMBS;
+ this.isInitialViewSet = false;
+ /**
+ * Callback used when the sidebar has been opened/closed, to ensure that
+ * the viewers (PDFViewer/PDFThumbnailViewer) are updated correctly.
+ */
+ this.onToggled = null;
+ this.pdfViewer = options.pdfViewer;
+ this.pdfThumbnailViewer = options.pdfThumbnailViewer;
+ this.pdfOutlineViewer = options.pdfOutlineViewer;
+ this.mainContainer = options.mainContainer;
+ this.outerContainer = options.outerContainer;
+ this.eventBus = options.eventBus;
+ this.toggleButton = options.toggleButton;
+ this.thumbnailButton = options.thumbnailButton;
+ this.outlineButton = options.outlineButton;
+ this.attachmentsButton = options.attachmentsButton;
+ this.thumbnailView = options.thumbnailView;
+ this.outlineView = options.outlineView;
+ this.attachmentsView = options.attachmentsView;
+ this._addEventListeners();
+ }
+ PDFSidebar.prototype = {
+ reset: function PDFSidebar_reset() {
+ this.isInitialViewSet = false;
+ this.close();
+ this.switchView(SidebarView.THUMBS);
+ this.outlineButton.disabled = false;
+ this.attachmentsButton.disabled = false;
+ },
+ /**
+ * @returns {number} One of the values in {SidebarView}.
+ */
+ get visibleView() {
+ return this.isOpen ? this.active : SidebarView.NONE;
+ },
+ get isThumbnailViewVisible() {
+ return this.isOpen && this.active === SidebarView.THUMBS;
+ },
+ get isOutlineViewVisible() {
+ return this.isOpen && this.active === SidebarView.OUTLINE;
+ },
+ get isAttachmentsViewVisible() {
+ return this.isOpen && this.active === SidebarView.ATTACHMENTS;
+ },
+ /**
+ * @param {number} view - The sidebar view that should become visible,
+ * must be one of the values in {SidebarView}.
+ */
+ setInitialView: function PDFSidebar_setInitialView(view) {
+ if (this.isInitialViewSet) {
+ return;
+ }
+ this.isInitialViewSet = true;
+ if (this.isOpen && view === SidebarView.NONE) {
+ this._dispatchEvent();
+ // If the user has already manually opened the sidebar,
+ // immediately closing it would be bad UX.
+ return;
+ }
+ var isViewPreserved = view === this.visibleView;
+ this.switchView(view, /* forceOpen */
+ true);
+ if (isViewPreserved) {
+ // Prevent dispatching two back-to-back `sidebarviewchanged` events,
+ // since `this.switchView` dispatched the event if the view changed.
+ this._dispatchEvent();
+ }
+ },
+ /**
+ * @param {number} view - The sidebar view that should be switched to,
+ * must be one of the values in {SidebarView}.
+ * @param {boolean} forceOpen - (optional) Ensure that the sidebar is open.
+ * The default value is false.
+ */
+ switchView: function PDFSidebar_switchView(view, forceOpen) {
+ if (view === SidebarView.NONE) {
+ this.close();
+ return;
+ }
+ var isViewChanged = view !== this.active;
+ var shouldForceRendering = false;
+ switch (view) {
+ case SidebarView.THUMBS:
+ this.thumbnailButton.classList.add('toggled');
+ this.outlineButton.classList.remove('toggled');
+ this.attachmentsButton.classList.remove('toggled');
+ this.thumbnailView.classList.remove('hidden');
+ this.outlineView.classList.add('hidden');
+ this.attachmentsView.classList.add('hidden');
+ if (this.isOpen && isViewChanged) {
+ this._updateThumbnailViewer();
+ shouldForceRendering = true;
+ }
+ break;
+ case SidebarView.OUTLINE:
+ if (this.outlineButton.disabled) {
+ return;
+ }
+ this.thumbnailButton.classList.remove('toggled');
+ this.outlineButton.classList.add('toggled');
+ this.attachmentsButton.classList.remove('toggled');
+ this.thumbnailView.classList.add('hidden');
+ this.outlineView.classList.remove('hidden');
+ this.attachmentsView.classList.add('hidden');
+ break;
+ case SidebarView.ATTACHMENTS:
+ if (this.attachmentsButton.disabled) {
+ return;
+ }
+ this.thumbnailButton.classList.remove('toggled');
+ this.outlineButton.classList.remove('toggled');
+ this.attachmentsButton.classList.add('toggled');
+ this.thumbnailView.classList.add('hidden');
+ this.outlineView.classList.add('hidden');
+ this.attachmentsView.classList.remove('hidden');
+ break;
+ default:
+ console.error('PDFSidebar_switchView: "' + view + '" is an unsupported value.');
+ return;
+ }
+ // Update the active view *after* it has been validated above,
+ // in order to prevent setting it to an invalid state.
+ this.active = view | 0;
+ if (forceOpen && !this.isOpen) {
+ this.open();
+ // NOTE: `this.open` will trigger rendering, and dispatch the event.
+ return;
+ }
+ if (shouldForceRendering) {
+ this._forceRendering();
+ }
+ if (isViewChanged) {
+ this._dispatchEvent();
+ }
+ },
+ open: function PDFSidebar_open() {
+ if (this.isOpen) {
+ return;
+ }
+ this.isOpen = true;
+ this.toggleButton.classList.add('toggled');
+ this.outerContainer.classList.add('sidebarMoving');
+ this.outerContainer.classList.add('sidebarOpen');
+ if (this.active === SidebarView.THUMBS) {
+ this._updateThumbnailViewer();
+ }
+ this._forceRendering();
+ this._dispatchEvent();
+ },
+ close: function PDFSidebar_close() {
+ if (!this.isOpen) {
+ return;
+ }
+ this.isOpen = false;
+ this.toggleButton.classList.remove('toggled');
+ this.outerContainer.classList.add('sidebarMoving');
+ this.outerContainer.classList.remove('sidebarOpen');
+ this._forceRendering();
+ this._dispatchEvent();
+ },
+ toggle: function PDFSidebar_toggle() {
+ if (this.isOpen) {
+ this.close();
+ } else {
+ this.open();
+ }
+ },
+ /**
+ * @private
+ */
+ _dispatchEvent: function PDFSidebar_dispatchEvent() {
+ this.eventBus.dispatch('sidebarviewchanged', {
+ source: this,
+ view: this.visibleView
+ });
+ },
+ /**
+ * @private
+ */
+ _forceRendering: function PDFSidebar_forceRendering() {
+ if (this.onToggled) {
+ this.onToggled();
+ } else {
+ // Fallback
+ this.pdfViewer.forceRendering();
+ this.pdfThumbnailViewer.forceRendering();
+ }
+ },
+ /**
+ * @private
+ */
+ _updateThumbnailViewer: function PDFSidebar_updateThumbnailViewer() {
+ var pdfViewer = this.pdfViewer;
+ var thumbnailViewer = this.pdfThumbnailViewer;
+ // Use the rendered pages to set the corresponding thumbnail images.
+ var pagesCount = pdfViewer.pagesCount;
+ for (var pageIndex = 0; pageIndex < pagesCount; pageIndex++) {
+ var pageView = pdfViewer.getPageView(pageIndex);
+ if (pageView && pageView.renderingState === RenderingStates.FINISHED) {
+ var thumbnailView = thumbnailViewer.getThumbnail(pageIndex);
+ thumbnailView.setImage(pageView);
+ }
+ }
+ thumbnailViewer.scrollThumbnailIntoView(pdfViewer.currentPageNumber);
+ },
+ /**
+ * @private
+ */
+ _addEventListeners: function PDFSidebar_addEventListeners() {
+ var self = this;
+ self.mainContainer.addEventListener('transitionend', function (evt) {
+ if (evt.target === /* mainContainer */
+ this) {
+ self.outerContainer.classList.remove('sidebarMoving');
+ }
+ });
+ // Buttons for switching views.
+ self.thumbnailButton.addEventListener('click', function () {
+ self.switchView(SidebarView.THUMBS);
+ });
+ self.outlineButton.addEventListener('click', function () {
+ self.switchView(SidebarView.OUTLINE);
+ });
+ self.outlineButton.addEventListener('dblclick', function () {
+ self.pdfOutlineViewer.toggleOutlineTree();
+ });
+ self.attachmentsButton.addEventListener('click', function () {
+ self.switchView(SidebarView.ATTACHMENTS);
+ });
+ // Disable/enable views.
+ self.eventBus.on('outlineloaded', function (e) {
+ var outlineCount = e.outlineCount;
+ self.outlineButton.disabled = !outlineCount;
+ if (!outlineCount && self.active === SidebarView.OUTLINE) {
+ self.switchView(SidebarView.THUMBS);
+ }
+ });
+ self.eventBus.on('attachmentsloaded', function (e) {
+ var attachmentsCount = e.attachmentsCount;
+ self.attachmentsButton.disabled = !attachmentsCount;
+ if (!attachmentsCount && self.active === SidebarView.ATTACHMENTS) {
+ self.switchView(SidebarView.THUMBS);
+ }
+ });
+ // Update the thumbnailViewer, if visible, when exiting presentation mode.
+ self.eventBus.on('presentationmodechanged', function (e) {
+ if (!e.active && !e.switchInProgress && self.isThumbnailViewVisible) {
+ self._updateThumbnailViewer();
+ }
+ });
+ }
+ };
+ return PDFSidebar;
+ }();
+ exports.SidebarView = SidebarView;
+ exports.PDFSidebar = PDFSidebar;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebUIUtils = {}, root.pdfjsWebPDFJS);
+ }(this, function (exports, pdfjsLib) {
+ var CSS_UNITS = 96.0 / 72.0;
+ var DEFAULT_SCALE_VALUE = 'auto';
+ var DEFAULT_SCALE = 1.0;
+ var UNKNOWN_SCALE = 0;
+ var MAX_AUTO_SCALE = 1.25;
+ var SCROLLBAR_PADDING = 40;
+ var VERTICAL_PADDING = 5;
+ var mozL10n = document.mozL10n || document.webL10n;
+ var PDFJS = pdfjsLib.PDFJS;
+ /**
+ * Disables fullscreen support, and by extension Presentation Mode,
+ * in browsers which support the fullscreen API.
+ * @var {boolean}
+ */
+ PDFJS.disableFullscreen = PDFJS.disableFullscreen === undefined ? false : PDFJS.disableFullscreen;
+ /**
+ * Enables CSS only zooming.
+ * @var {boolean}
+ */
+ PDFJS.useOnlyCssZoom = PDFJS.useOnlyCssZoom === undefined ? false : PDFJS.useOnlyCssZoom;
+ /**
+ * The maximum supported canvas size in total pixels e.g. width * height.
+ * The default value is 4096 * 4096. Use -1 for no limit.
+ * @var {number}
+ */
+ PDFJS.maxCanvasPixels = PDFJS.maxCanvasPixels === undefined ? 16777216 : PDFJS.maxCanvasPixels;
+ /**
+ * Disables saving of the last position of the viewed PDF.
+ * @var {boolean}
+ */
+ PDFJS.disableHistory = PDFJS.disableHistory === undefined ? false : PDFJS.disableHistory;
+ /**
+ * Disables creation of the text layer that used for text selection and search.
+ * @var {boolean}
+ */
+ PDFJS.disableTextLayer = PDFJS.disableTextLayer === undefined ? false : PDFJS.disableTextLayer;
+ /**
+ * Disables maintaining the current position in the document when zooming.
+ */
+ PDFJS.ignoreCurrentPositionOnZoom = PDFJS.ignoreCurrentPositionOnZoom === undefined ? false : PDFJS.ignoreCurrentPositionOnZoom;
+ /**
+ * Returns scale factor for the canvas. It makes sense for the HiDPI displays.
+ * @return {Object} The object with horizontal (sx) and vertical (sy)
+ scales. The scaled property is set to false if scaling is
+ not required, true otherwise.
+ */
+ 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
+ };
+ }
+ /**
+ * Scrolls specified element into view of its parent.
+ * @param {Object} element - The element to be visible.
+ * @param {Object} spot - An object with optional top and left properties,
+ * specifying the offset from the top left edge.
+ * @param {boolean} skipOverflowHiddenElements - Ignore elements that have
+ * the CSS rule `overflow: hidden;` set. The default is false.
+ */
+ function scrollIntoView(element, spot, skipOverflowHiddenElements) {
+ // Assuming offsetParent is available (it's not available when viewer is in
+ // hidden iframe or object). We have to scroll: if the offsetParent is not set
+ // producing the error. See also animationStartedClosure.
+ 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;
+ }
+ }
+ // no need to scroll
+ if (spot) {
+ if (spot.top !== undefined) {
+ offsetY += spot.top;
+ }
+ if (spot.left !== undefined) {
+ offsetX += spot.left;
+ parent.scrollLeft = offsetX;
+ }
+ }
+ parent.scrollTop = offsetY;
+ }
+ /**
+ * Helper function to start monitoring the scroll event and converting them into
+ * PDF.js friendly one: with scroll debounce and scroll direction.
+ */
+ function watchScroll(viewAreaElement, callback) {
+ var debounceScroll = function debounceScroll(evt) {
+ if (rAF) {
+ return;
+ }
+ // schedule an invocation of scroll for next animation frame.
+ 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;
+ }
+ /**
+ * Helper function to parse query string (e.g. ?param1=value&parm2=...).
+ */
+ 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;
+ }
+ /**
+ * Use binary search to find the index of the first item in a given array which
+ * passes a given condition. The items are expected to be sorted in the sense
+ * that if the condition is true for one item in the array, then it is also true
+ * for all following items.
+ *
+ * @returns {Number} Index of the first array element to pass the test,
+ * or |items.length| if no such element exists.
+ */
+ 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;
+ }
+ /* === maxIndex */
+ /**
+ * Approximates float number as a fraction using Farey sequence (max order
+ * of 8).
+ * @param {number} x - Positive float number.
+ * @returns {Array} Estimated fraction: the first array item is a numerator,
+ * the second one is a denominator.
+ */
+ function approximateFraction(x) {
+ // Fast paths for int numbers or their inversions.
+ 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;
+ // a/b and c/d are neighbours in Farey sequence.
+ var a = 0, b = 1, c = 1, d = 1;
+ // Limiting search to order 8.
+ while (true) {
+ // Generating next term in sequence (order of q).
+ var p = a + c, q = b + d;
+ if (q > limit) {
+ break;
+ }
+ if (x_ <= p / q) {
+ c = p;
+ d = q;
+ } else {
+ a = p;
+ b = q;
+ }
+ }
+ // Select closest of the neighbours to x.
+ if (x_ - a / b < c / d - x_) {
+ return x_ === x ? [
+ a,
+ b
+ ] : [
+ b,
+ a
+ ];
+ } else {
+ return x_ === x ? [
+ c,
+ d
+ ] : [
+ d,
+ c
+ ];
+ }
+ }
+ function roundToDivide(x, div) {
+ var r = x % div;
+ return r === 0 ? x : Math.round(x - r + div);
+ }
+ /**
+ * Generic helper to find out what elements are visible within a scroll pane.
+ */
+ 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;
+ });
+ }
+ // ensure stability
+ return {
+ first: first,
+ last: last,
+ views: visible
+ };
+ }
+ /**
+ * Event handler to suppress context menu.
+ */
+ function noContextMenuHandler(e) {
+ e.preventDefault();
+ }
+ /**
+ * Returns the filename or guessed filename from the url (see issue 3455).
+ * url {String} The original PDF location.
+ * @return {String} Guessed PDF file name.
+ */
+ function getPDFFileNameFromURL(url) {
+ var reURI = /^(?:([^:]+:)?\/\/[^\/]+)?([^?#]*)(\?[^#]*)?(#.*)?$/;
+ // SCHEME HOST 1.PATH 2.QUERY 3.REF
+ // Pattern to get last matching NAME.pdf
+ 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) {
+ // URL-encoded %2Fpath%2Fto%2Ffile.pdf should be file.pdf
+ 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) {
+ // All that is left-up oriented has to change the sign.
+ 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;
+ // Converts delta to per-page units
+ 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;
+ }
+ /**
+ * Simple event bus for an application. Listeners are attached using the
+ * `on` and `off` methods. To raise an event, the `dispatch` method shall be
+ * used.
+ */
+ 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;
+ }
+ // Passing all arguments after the eventName to the listeners.
+ var args = Array.prototype.slice.call(arguments, 1);
+ // Making copy of the listeners array in case if it will be modified
+ // during dispatch.
+ 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;
+ // Fetch the sub-elements for later.
+ this.div = document.querySelector(id + ' .progress');
+ // Get the loading bar element, so it can be resized to fit the viewer.
+ this.bar = this.div.parentNode;
+ // Get options, with sensible defaults.
+ this.height = opts.height || 100;
+ this.width = opts.width || 100;
+ this.units = opts.units || '%';
+ // Initialize heights.
+ 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.UNKNOWN_SCALE = UNKNOWN_SCALE;
+ exports.MAX_AUTO_SCALE = MAX_AUTO_SCALE;
+ exports.SCROLLBAR_PADDING = SCROLLBAR_PADDING;
+ exports.VERTICAL_PADDING = VERTICAL_PADDING;
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebDOMEvents = {}, root.pdfjsWebUIUtils);
+ }(this, function (exports, uiUtils) {
+ var EventBus = uiUtils.EventBus;
+ // Attaching to the application event bus to dispatch events to the DOM for
+ // backwards viewer API compatibility.
+ 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;
+ }
+ // event comes from FirefoxCom, no need to replicate
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPasswordPrompt = {}, root.pdfjsWebUIUtils, root.pdfjsWebOverlayManager, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtils, overlayManager, pdfjsLib) {
+ var mozL10n = uiUtils.mozL10n;
+ var OverlayManager = overlayManager.OverlayManager;
+ /**
+ * @typedef {Object} PasswordPromptOptions
+ * @property {string} overlayName - Name of the overlay for the overlay manager.
+ * @property {HTMLDivElement} container - Div container for the overlay.
+ * @property {HTMLParagraphElement} label - Label containing instructions for
+ * entering the password.
+ * @property {HTMLInputElement} input - Input field for entering the password.
+ * @property {HTMLButtonElement} submitButton - Button for submitting the
+ * password.
+ * @property {HTMLButtonElement} cancelButton - Button for cancelling password
+ * entry.
+ */
+ /**
+ * @class
+ */
+ var PasswordPrompt = function PasswordPromptClosure() {
+ /**
+ * @constructs PasswordPrompt
+ * @param {PasswordPromptOptions} options
+ */
+ function PasswordPrompt(options) {
+ this.overlayName = options.overlayName;
+ this.container = options.container;
+ this.label = options.label;
+ this.input = options.input;
+ this.submitButton = options.submitButton;
+ this.cancelButton = options.cancelButton;
+ this.updateCallback = null;
+ this.reason = null;
+ // Attach the event listeners.
+ this.submitButton.addEventListener('click', this.verify.bind(this));
+ this.cancelButton.addEventListener('click', this.close.bind(this));
+ this.input.addEventListener('keydown', function (e) {
+ if (e.keyCode === 13) {
+ // Enter key
+ this.verify();
+ }
+ }.bind(this));
+ OverlayManager.register(this.overlayName, this.container, this.close.bind(this), true);
+ }
+ PasswordPrompt.prototype = {
+ open: function PasswordPrompt_open() {
+ OverlayManager.open(this.overlayName).then(function () {
+ this.input.type = 'password';
+ this.input.focus();
+ var promptString = mozL10n.get('password_label', null, 'Enter the password to open this PDF file.');
+ if (this.reason === pdfjsLib.PasswordResponses.INCORRECT_PASSWORD) {
+ promptString = mozL10n.get('password_invalid', null, 'Invalid password. Please try again.');
+ }
+ this.label.textContent = promptString;
+ }.bind(this));
+ },
+ close: function PasswordPrompt_close() {
+ OverlayManager.close(this.overlayName).then(function () {
+ this.input.value = '';
+ this.input.type = '';
+ }.bind(this));
+ },
+ verify: function PasswordPrompt_verify() {
+ var password = this.input.value;
+ if (password && password.length > 0) {
+ this.close();
+ return this.updateCallback(password);
+ }
+ },
+ setUpdateCallback: function PasswordPrompt_setUpdateCallback(updateCallback, reason) {
+ this.updateCallback = updateCallback;
+ this.reason = reason;
+ }
+ };
+ return PasswordPrompt;
+ }();
+ exports.PasswordPrompt = PasswordPrompt;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFDocumentProperties = {}, root.pdfjsWebUIUtils, root.pdfjsWebOverlayManager);
+ }(this, function (exports, uiUtils, overlayManager) {
+ var getPDFFileNameFromURL = uiUtils.getPDFFileNameFromURL;
+ var mozL10n = uiUtils.mozL10n;
+ var OverlayManager = overlayManager.OverlayManager;
+ /**
+ * @typedef {Object} PDFDocumentPropertiesOptions
+ * @property {string} overlayName - Name/identifier for the overlay.
+ * @property {Object} fields - Names and elements of the overlay's fields.
+ * @property {HTMLButtonElement} closeButton - Button for closing the overlay.
+ */
+ /**
+ * @class
+ */
+ var PDFDocumentProperties = function PDFDocumentPropertiesClosure() {
+ /**
+ * @constructs PDFDocumentProperties
+ * @param {PDFDocumentPropertiesOptions} options
+ */
+ function PDFDocumentProperties(options) {
+ this.fields = options.fields;
+ this.overlayName = options.overlayName;
+ this.container = options.container;
+ this.rawFileSize = 0;
+ this.url = null;
+ this.pdfDocument = null;
+ // Bind the event listener for the Close button.
+ if (options.closeButton) {
+ options.closeButton.addEventListener('click', this.close.bind(this));
+ }
+ this.dataAvailablePromise = new Promise(function (resolve) {
+ this.resolveDataAvailable = resolve;
+ }.bind(this));
+ OverlayManager.register(this.overlayName, this.container, this.close.bind(this));
+ }
+ PDFDocumentProperties.prototype = {
+ /**
+ * Open the document properties overlay.
+ */
+ open: function PDFDocumentProperties_open() {
+ Promise.all([
+ OverlayManager.open(this.overlayName),
+ this.dataAvailablePromise
+ ]).then(function () {
+ this._getProperties();
+ }.bind(this));
+ },
+ /**
+ * Close the document properties overlay.
+ */
+ close: function PDFDocumentProperties_close() {
+ OverlayManager.close(this.overlayName);
+ },
+ /**
+ * Set the file size of the PDF document. This method is used to
+ * update the file size in the document properties overlay once it
+ * is known so we do not have to wait until the entire file is loaded.
+ *
+ * @param {number} fileSize - The file size of the PDF document.
+ */
+ setFileSize: function PDFDocumentProperties_setFileSize(fileSize) {
+ if (fileSize > 0) {
+ this.rawFileSize = fileSize;
+ }
+ },
+ /**
+ * Set a reference to the PDF document and the URL in order
+ * to populate the overlay fields with the document properties.
+ * Note that the overlay will contain no information if this method
+ * is not called.
+ *
+ * @param {Object} pdfDocument - A reference to the PDF document.
+ * @param {string} url - The URL of the document.
+ */
+ setDocumentAndUrl: function PDFDocumentProperties_setDocumentAndUrl(pdfDocument, url) {
+ this.pdfDocument = pdfDocument;
+ this.url = url;
+ this.resolveDataAvailable();
+ },
+ /**
+ * @private
+ */
+ _getProperties: function PDFDocumentProperties_getProperties() {
+ if (!OverlayManager.active) {
+ // If the dialog was closed before dataAvailablePromise was resolved,
+ // don't bother updating the properties.
+ return;
+ }
+ // Get the file size (if it hasn't already been set).
+ this.pdfDocument.getDownloadInfo().then(function (data) {
+ if (data.length === this.rawFileSize) {
+ return;
+ }
+ this.setFileSize(data.length);
+ this._updateUI(this.fields['fileSize'], this._parseFileSize());
+ }.bind(this));
+ // Get the document properties.
+ this.pdfDocument.getMetadata().then(function (data) {
+ var content = {
+ 'fileName': getPDFFileNameFromURL(this.url),
+ 'fileSize': this._parseFileSize(),
+ 'title': data.info.Title,
+ 'author': data.info.Author,
+ 'subject': data.info.Subject,
+ 'keywords': data.info.Keywords,
+ 'creationDate': this._parseDate(data.info.CreationDate),
+ 'modificationDate': this._parseDate(data.info.ModDate),
+ 'creator': data.info.Creator,
+ 'producer': data.info.Producer,
+ 'version': data.info.PDFFormatVersion,
+ 'pageCount': this.pdfDocument.numPages
+ };
+ // Show the properties in the dialog.
+ for (var identifier in content) {
+ this._updateUI(this.fields[identifier], content[identifier]);
+ }
+ }.bind(this));
+ },
+ /**
+ * @private
+ */
+ _updateUI: function PDFDocumentProperties_updateUI(field, content) {
+ if (field && content !== undefined && content !== '') {
+ field.textContent = content;
+ }
+ },
+ /**
+ * @private
+ */
+ _parseFileSize: function PDFDocumentProperties_parseFileSize() {
+ var fileSize = this.rawFileSize, kb = fileSize / 1024;
+ if (!kb) {
+ return;
+ } else if (kb < 1024) {
+ return mozL10n.get('document_properties_kb', {
+ size_kb: (+kb.toPrecision(3)).toLocaleString(),
+ size_b: fileSize.toLocaleString()
+ }, '{{size_kb}} KB ({{size_b}} bytes)');
+ } else {
+ return mozL10n.get('document_properties_mb', {
+ size_mb: (+(kb / 1024).toPrecision(3)).toLocaleString(),
+ size_b: fileSize.toLocaleString()
+ }, '{{size_mb}} MB ({{size_b}} bytes)');
+ }
+ },
+ /**
+ * @private
+ */
+ _parseDate: function PDFDocumentProperties_parseDate(inputDate) {
+ // This is implemented according to the PDF specification, but note that
+ // Adobe Reader doesn't handle changing the date to universal time
+ // and doesn't use the user's time zone (they're effectively ignoring
+ // the HH' and mm' parts of the date string).
+ var dateToParse = inputDate;
+ if (dateToParse === undefined) {
+ return '';
+ }
+ // Remove the D: prefix if it is available.
+ if (dateToParse.substring(0, 2) === 'D:') {
+ dateToParse = dateToParse.substring(2);
+ }
+ // Get all elements from the PDF date string.
+ // JavaScript's Date object expects the month to be between
+ // 0 and 11 instead of 1 and 12, so we're correcting for this.
+ var year = parseInt(dateToParse.substring(0, 4), 10);
+ var month = parseInt(dateToParse.substring(4, 6), 10) - 1;
+ var day = parseInt(dateToParse.substring(6, 8), 10);
+ var hours = parseInt(dateToParse.substring(8, 10), 10);
+ var minutes = parseInt(dateToParse.substring(10, 12), 10);
+ var seconds = parseInt(dateToParse.substring(12, 14), 10);
+ var utRel = dateToParse.substring(14, 15);
+ var offsetHours = parseInt(dateToParse.substring(15, 17), 10);
+ var offsetMinutes = parseInt(dateToParse.substring(18, 20), 10);
+ // As per spec, utRel = 'Z' means equal to universal time.
+ // The other cases ('-' and '+') have to be handled here.
+ if (utRel === '-') {
+ hours += offsetHours;
+ minutes += offsetMinutes;
+ } else if (utRel === '+') {
+ hours -= offsetHours;
+ minutes -= offsetMinutes;
+ }
+ // Return the new date format from the user's locale.
+ var date = new Date(Date.UTC(year, month, day, hours, minutes, seconds));
+ var dateString = date.toLocaleDateString();
+ var timeString = date.toLocaleTimeString();
+ return mozL10n.get('document_properties_date_string', {
+ date: dateString,
+ time: timeString
+ }, '{{date}}, {{time}}');
+ }
+ };
+ return PDFDocumentProperties;
+ }();
+ exports.PDFDocumentProperties = PDFDocumentProperties;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFFindController = {}, root.pdfjsWebUIUtils);
+ }(this, function (exports, uiUtils) {
+ 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': '\'',
+ // Left single quotation mark
+ '\u2019': '\'',
+ // Right single quotation mark
+ '\u201A': '\'',
+ // Single low-9 quotation mark
+ '\u201B': '\'',
+ // Single high-reversed-9 quotation mark
+ '\u201C': '"',
+ // Left double quotation mark
+ '\u201D': '"',
+ // Right double quotation mark
+ '\u201E': '"',
+ // Double low-9 quotation mark
+ '\u201F': '"',
+ // Double high-reversed-9 quotation mark
+ '\u00BC': '1/4',
+ // Vulgar fraction one quarter
+ '\u00BD': '1/2',
+ // Vulgar fraction one half
+ '\u00BE': '3/4'
+ };
+ // Vulgar fraction three quarters
+ /**
+ * Provides "search" or "find" functionality for the PDF.
+ * This object actually performs the search for a given string.
+ */
+ var PDFFindController = function PDFFindControllerClosure() {
+ function PDFFindController(options) {
+ this.pdfViewer = options.pdfViewer || null;
+ this.onUpdateResultsCount = null;
+ this.onUpdateState = null;
+ this.reset();
+ // Compile the regular expression for text normalization once.
+ 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;
+ // If active, find results will be highlighted.
+ this.pageContents = [];
+ // Stores the text for each page.
+ this.pageMatches = [];
+ this.pageMatchesLength = null;
+ this.matchCount = 0;
+ this.selected = {
+ // Currently selected match.
+ pageIdx: -1,
+ matchIdx: -1
+ };
+ this.offset = {
+ // Where the find algorithm currently is in the document.
+ 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];
+ });
+ },
+ // Helper for multiple search - fills matchesWithLength array
+ // and takes into account cases when one search term
+ // include another search term (for example, "tamed tame" or "this is").
+ // Looking for intersecting terms in the 'matches' and
+ // leave elements with a longer match-length.
+ _prepareMatches: function PDFFindController_prepareMatches(matchesWithLength, matches, matchesLength) {
+ function isSubTerm(matchesWithLength, currentIndex) {
+ var currentElem, prevElem, nextElem;
+ currentElem = matchesWithLength[currentIndex];
+ nextElem = matchesWithLength[currentIndex + 1];
+ // checking for cases like "TAMEd TAME"
+ if (currentIndex < matchesWithLength.length - 1 && currentElem.match === nextElem.match) {
+ currentElem.skipped = true;
+ return true;
+ }
+ // checking for cases like "thIS IS"
+ 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;
+ // Sorting array of objects { match: <match>, matchLength: <matchLength> }
+ // in increasing index first and then the lengths.
+ 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 = [];
+ // Divide the query into pieces and search for text on each piece.
+ 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;
+ }
+ // Other searches do not, so we store the length.
+ matchesWithLength.push({
+ match: matchIdx,
+ matchLength: subqueryLen,
+ skipped: false
+ });
+ }
+ }
+ // Prepare arrays for store the matches.
+ if (!this.pageMatchesLength) {
+ this.pageMatchesLength = [];
+ }
+ this.pageMatchesLength[pageIndex] = [];
+ this.pageMatches[pageIndex] = [];
+ // Sort matchesWithLength, clean up intersecting terms
+ // and put the result into the two arrays.
+ 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) {
+ // Do nothing: the matches should be wiped out already.
+ 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();
+ }
+ // Update the matches count
+ 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);
+ }
+ // Store the pageContent as a string.
+ 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') {
+ // Only trigger the find action after 250ms of silence.
+ this.findTimeout = setTimeout(this.nextMatch.bind(this), 250);
+ } else {
+ this.nextMatch();
+ }
+ }.bind(this));
+ },
+ updatePage: function PDFFindController_updatePage(index) {
+ if (this.selected.pageIdx === index) {
+ // If the page is selected, scroll the page into view, which triggers
+ // rendering the page, which adds the textLayer. Once the textLayer is
+ // build, it will scroll onto the selected match.
+ 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) {
+ // Need to recalculate the matches, reset everything.
+ 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++) {
+ // Wipe out any previous highlighted matches.
+ this.updatePage(i);
+ // As soon as the text is extracted start finding the matches.
+ if (!(i in this.pendingFindMatches)) {
+ this.pendingFindMatches[i] = true;
+ this.extractTextPromises[i].then(function (pageIdx) {
+ delete self.pendingFindMatches[pageIdx];
+ self.calcFindMatch(pageIdx);
+ });
+ }
+ }
+ }
+ // If there's no query there's no point in searching.
+ if (this.state.query === '') {
+ this.updateUIState(FindStates.FIND_FOUND);
+ return;
+ }
+ // If we're waiting on a page, we return since we can't do anything else.
+ if (this.resumePageIdx) {
+ return;
+ }
+ var offset = this.offset;
+ // Keep track of how many pages we should maximally iterate through.
+ this.pagesToSearch = numPages;
+ // If there's already a matchIdx that means we are iterating through a
+ // page's matches.
+ if (offset.matchIdx !== null) {
+ var numPageMatches = this.pageMatches[offset.pageIdx].length;
+ if (!previous && offset.matchIdx + 1 < numPageMatches || previous && offset.matchIdx > 0) {
+ // The simple case; we just have advance the matchIdx to select
+ // the next match on the page.
+ this.hadMatch = true;
+ offset.matchIdx = previous ? offset.matchIdx - 1 : offset.matchIdx + 1;
+ this.updateMatch(true);
+ return;
+ }
+ // We went beyond the current page's matches, so we advance to
+ // the next page.
+ this.advanceOffsetPage(previous);
+ }
+ // Start searching through the page.
+ this.nextPageMatch();
+ },
+ matchesReady: function PDFFindController_matchesReady(matches) {
+ var offset = this.offset;
+ var numMatches = matches.length;
+ var previous = this.state.findPrevious;
+ if (numMatches) {
+ // There were matches for the page, so initialize the matchIdx.
+ this.hadMatch = true;
+ offset.matchIdx = previous ? numMatches - 1 : 0;
+ this.updateMatch(true);
+ return true;
+ } else {
+ // No matches, so attempt to search the next page.
+ this.advanceOffsetPage(previous);
+ if (offset.wrapped) {
+ offset.matchIdx = null;
+ if (this.pagesToSearch < 0) {
+ // No point in wrapping again, there were no matches.
+ this.updateMatch(false);
+ // while matches were not found, searching for a page
+ // with matches should nevertheless halt.
+ return true;
+ }
+ }
+ // Matches were not found (and searching is not done).
+ return false;
+ }
+ },
+ /**
+ * The method is called back from the text layer when match presentation
+ * is updated.
+ * @param {number} pageIndex - page index.
+ * @param {number} index - match index.
+ * @param {Array} elements - text layer div elements array.
+ * @param {number} beginIdx - start index of the div array for the match.
+ */
+ 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, /* skipOverflowHiddenElements = */
+ 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) {
+ // The matches don't exist yet for processing by "matchesReady",
+ // so set a resume point for when they do exist.
+ 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;
+ // Update the currently selected page to wipe out any selected matches.
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFPresentationMode = {}, root.pdfjsWebUIUtils);
+ }(this, function (exports, uiUtils) {
+ var normalizeWheelEventDelta = uiUtils.normalizeWheelEventDelta;
+ var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1500;
+ // in ms
+ var DELAY_BEFORE_HIDING_CONTROLS = 3000;
+ // in ms
+ var ACTIVE_SELECTOR = 'pdfPresentationMode';
+ var CONTROLS_SELECTOR = 'pdfPresentationModeControls';
+ /**
+ * @typedef {Object} PDFPresentationModeOptions
+ * @property {HTMLDivElement} container - The container for the viewer element.
+ * @property {HTMLDivElement} viewer - (optional) The viewer element.
+ * @property {PDFViewer} pdfViewer - The document viewer.
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {Array} contextMenuItems - (optional) The menuitems that are added
+ * to the context menu in Presentation Mode.
+ */
+ /**
+ * @class
+ */
+ var PDFPresentationMode = function PDFPresentationModeClosure() {
+ /**
+ * @constructs PDFPresentationMode
+ * @param {PDFPresentationModeOptions} options
+ */
+ function PDFPresentationMode(options) {
+ this.container = options.container;
+ this.viewer = options.viewer || options.container.firstElementChild;
+ this.pdfViewer = options.pdfViewer;
+ this.eventBus = options.eventBus;
+ var contextMenuItems = options.contextMenuItems || null;
+ this.active = false;
+ this.args = null;
+ this.contextMenuOpen = false;
+ this.mouseScrollTimeStamp = 0;
+ this.mouseScrollDelta = 0;
+ this.touchSwipeState = null;
+ if (contextMenuItems) {
+ contextMenuItems.contextFirstPage.addEventListener('click', function PDFPresentationMode_contextFirstPageClick(e) {
+ this.contextMenuOpen = false;
+ this.eventBus.dispatch('firstpage');
+ }.bind(this));
+ contextMenuItems.contextLastPage.addEventListener('click', function PDFPresentationMode_contextLastPageClick(e) {
+ this.contextMenuOpen = false;
+ this.eventBus.dispatch('lastpage');
+ }.bind(this));
+ contextMenuItems.contextPageRotateCw.addEventListener('click', function PDFPresentationMode_contextPageRotateCwClick(e) {
+ this.contextMenuOpen = false;
+ this.eventBus.dispatch('rotatecw');
+ }.bind(this));
+ contextMenuItems.contextPageRotateCcw.addEventListener('click', function PDFPresentationMode_contextPageRotateCcwClick(e) {
+ this.contextMenuOpen = false;
+ this.eventBus.dispatch('rotateccw');
+ }.bind(this));
+ }
+ }
+ PDFPresentationMode.prototype = {
+ /**
+ * Request the browser to enter fullscreen mode.
+ * @returns {boolean} Indicating if the request was successful.
+ */
+ request: function PDFPresentationMode_request() {
+ if (this.switchInProgress || this.active || !this.viewer.hasChildNodes()) {
+ return false;
+ }
+ this._addFullscreenChangeListeners();
+ this._setSwitchInProgress();
+ this._notifyStateChange();
+ if (this.container.requestFullscreen) {
+ this.container.requestFullscreen();
+ } else if (this.container.mozRequestFullScreen) {
+ this.container.mozRequestFullScreen();
+ } else if (this.container.webkitRequestFullscreen) {
+ this.container.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
+ } else if (this.container.msRequestFullscreen) {
+ this.container.msRequestFullscreen();
+ } else {
+ return false;
+ }
+ this.args = {
+ page: this.pdfViewer.currentPageNumber,
+ previousScale: this.pdfViewer.currentScaleValue
+ };
+ return true;
+ },
+ /**
+ * @private
+ */
+ _mouseWheel: function PDFPresentationMode_mouseWheel(evt) {
+ if (!this.active) {
+ return;
+ }
+ evt.preventDefault();
+ var delta = normalizeWheelEventDelta(evt);
+ var MOUSE_SCROLL_COOLDOWN_TIME = 50;
+ var PAGE_SWITCH_THRESHOLD = 0.1;
+ var currentTime = new Date().getTime();
+ var storedTime = this.mouseScrollTimeStamp;
+ // If we've already switched page, avoid accidentally switching again.
+ if (currentTime > storedTime && currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME) {
+ return;
+ }
+ // If the scroll direction changed, reset the accumulated scroll delta.
+ if (this.mouseScrollDelta > 0 && delta < 0 || this.mouseScrollDelta < 0 && delta > 0) {
+ this._resetMouseScrollState();
+ }
+ this.mouseScrollDelta += delta;
+ if (Math.abs(this.mouseScrollDelta) >= PAGE_SWITCH_THRESHOLD) {
+ var totalDelta = this.mouseScrollDelta;
+ this._resetMouseScrollState();
+ var success = totalDelta > 0 ? this._goToPreviousPage() : this._goToNextPage();
+ if (success) {
+ this.mouseScrollTimeStamp = currentTime;
+ }
+ }
+ },
+ get isFullscreen() {
+ return !!(document.fullscreenElement || document.mozFullScreen || document.webkitIsFullScreen || document.msFullscreenElement);
+ },
+ /**
+ * @private
+ */
+ _goToPreviousPage: function PDFPresentationMode_goToPreviousPage() {
+ var page = this.pdfViewer.currentPageNumber;
+ // If we're at the first page, we don't need to do anything.
+ if (page <= 1) {
+ return false;
+ }
+ this.pdfViewer.currentPageNumber = page - 1;
+ return true;
+ },
+ /**
+ * @private
+ */
+ _goToNextPage: function PDFPresentationMode_goToNextPage() {
+ var page = this.pdfViewer.currentPageNumber;
+ // If we're at the last page, we don't need to do anything.
+ if (page >= this.pdfViewer.pagesCount) {
+ return false;
+ }
+ this.pdfViewer.currentPageNumber = page + 1;
+ return true;
+ },
+ /**
+ * @private
+ */
+ _notifyStateChange: function PDFPresentationMode_notifyStateChange() {
+ this.eventBus.dispatch('presentationmodechanged', {
+ source: this,
+ active: this.active,
+ switchInProgress: !!this.switchInProgress
+ });
+ },
+ /**
+ * Used to initialize a timeout when requesting Presentation Mode,
+ * i.e. when the browser is requested to enter fullscreen mode.
+ * This timeout is used to prevent the current page from being scrolled
+ * partially, or completely, out of view when entering Presentation Mode.
+ * NOTE: This issue seems limited to certain zoom levels (e.g. page-width).
+ * @private
+ */
+ _setSwitchInProgress: function PDFPresentationMode_setSwitchInProgress() {
+ if (this.switchInProgress) {
+ clearTimeout(this.switchInProgress);
+ }
+ this.switchInProgress = setTimeout(function switchInProgressTimeout() {
+ this._removeFullscreenChangeListeners();
+ delete this.switchInProgress;
+ this._notifyStateChange();
+ }.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
+ },
+ /**
+ * @private
+ */
+ _resetSwitchInProgress: function PDFPresentationMode_resetSwitchInProgress() {
+ if (this.switchInProgress) {
+ clearTimeout(this.switchInProgress);
+ delete this.switchInProgress;
+ }
+ },
+ /**
+ * @private
+ */
+ _enter: function PDFPresentationMode_enter() {
+ this.active = true;
+ this._resetSwitchInProgress();
+ this._notifyStateChange();
+ this.container.classList.add(ACTIVE_SELECTOR);
+ // Ensure that the correct page is scrolled into view when entering
+ // Presentation Mode, by waiting until fullscreen mode in enabled.
+ setTimeout(function enterPresentationModeTimeout() {
+ this.pdfViewer.currentPageNumber = this.args.page;
+ this.pdfViewer.currentScaleValue = 'page-fit';
+ }.bind(this), 0);
+ this._addWindowListeners();
+ this._showControls();
+ this.contextMenuOpen = false;
+ this.container.setAttribute('contextmenu', 'viewerContextMenu');
+ // Text selection is disabled in Presentation Mode, thus it's not possible
+ // for the user to deselect text that is selected (e.g. with "Select all")
+ // when entering Presentation Mode, hence we remove any active selection.
+ window.getSelection().removeAllRanges();
+ },
+ /**
+ * @private
+ */
+ _exit: function PDFPresentationMode_exit() {
+ var page = this.pdfViewer.currentPageNumber;
+ this.container.classList.remove(ACTIVE_SELECTOR);
+ // Ensure that the correct page is scrolled into view when exiting
+ // Presentation Mode, by waiting until fullscreen mode is disabled.
+ setTimeout(function exitPresentationModeTimeout() {
+ this.active = false;
+ this._removeFullscreenChangeListeners();
+ this._notifyStateChange();
+ this.pdfViewer.currentScaleValue = this.args.previousScale;
+ this.pdfViewer.currentPageNumber = page;
+ this.args = null;
+ }.bind(this), 0);
+ this._removeWindowListeners();
+ this._hideControls();
+ this._resetMouseScrollState();
+ this.container.removeAttribute('contextmenu');
+ this.contextMenuOpen = false;
+ },
+ /**
+ * @private
+ */
+ _mouseDown: function PDFPresentationMode_mouseDown(evt) {
+ if (this.contextMenuOpen) {
+ this.contextMenuOpen = false;
+ evt.preventDefault();
+ return;
+ }
+ if (evt.button === 0) {
+ // Enable clicking of links in presentation mode. Please note:
+ // Only links pointing to destinations in the current PDF document work.
+ var isInternalLink = evt.target.href && evt.target.classList.contains('internalLink');
+ if (!isInternalLink) {
+ // Unless an internal link was clicked, advance one page.
+ evt.preventDefault();
+ this.pdfViewer.currentPageNumber += evt.shiftKey ? -1 : 1;
+ }
+ }
+ },
+ /**
+ * @private
+ */
+ _contextMenu: function PDFPresentationMode_contextMenu() {
+ this.contextMenuOpen = true;
+ },
+ /**
+ * @private
+ */
+ _showControls: function PDFPresentationMode_showControls() {
+ if (this.controlsTimeout) {
+ clearTimeout(this.controlsTimeout);
+ } else {
+ this.container.classList.add(CONTROLS_SELECTOR);
+ }
+ this.controlsTimeout = setTimeout(function showControlsTimeout() {
+ this.container.classList.remove(CONTROLS_SELECTOR);
+ delete this.controlsTimeout;
+ }.bind(this), DELAY_BEFORE_HIDING_CONTROLS);
+ },
+ /**
+ * @private
+ */
+ _hideControls: function PDFPresentationMode_hideControls() {
+ if (!this.controlsTimeout) {
+ return;
+ }
+ clearTimeout(this.controlsTimeout);
+ this.container.classList.remove(CONTROLS_SELECTOR);
+ delete this.controlsTimeout;
+ },
+ /**
+ * Resets the properties used for tracking mouse scrolling events.
+ * @private
+ */
+ _resetMouseScrollState: function PDFPresentationMode_resetMouseScrollState() {
+ this.mouseScrollTimeStamp = 0;
+ this.mouseScrollDelta = 0;
+ },
+ /**
+ * @private
+ */
+ _touchSwipe: function PDFPresentationMode_touchSwipe(evt) {
+ if (!this.active) {
+ return;
+ }
+ // Must move at least these many CSS pixels for it to count as a swipe
+ var SWIPE_MIN_DISTANCE_THRESHOLD = 50;
+ // The swipe angle is allowed to deviate from the x or y axis by this much
+ // before it is not considered a swipe in that direction any more.
+ var SWIPE_ANGLE_THRESHOLD = Math.PI / 6;
+ if (evt.touches.length > 1) {
+ // Multiple touch points detected, cancel the swipe.
+ this.touchSwipeState = null;
+ return;
+ }
+ switch (evt.type) {
+ case 'touchstart':
+ this.touchSwipeState = {
+ startX: evt.touches[0].pageX,
+ startY: evt.touches[0].pageY,
+ endX: evt.touches[0].pageX,
+ endY: evt.touches[0].pageY
+ };
+ break;
+ case 'touchmove':
+ if (this.touchSwipeState === null) {
+ return;
+ }
+ this.touchSwipeState.endX = evt.touches[0].pageX;
+ this.touchSwipeState.endY = evt.touches[0].pageY;
+ // Do a preventDefault to avoid the swipe from triggering browser
+ // gestures (Chrome in particular has some sort of swipe gesture in
+ // fullscreen mode).
+ evt.preventDefault();
+ break;
+ case 'touchend':
+ if (this.touchSwipeState === null) {
+ return;
+ }
+ var delta = 0;
+ var dx = this.touchSwipeState.endX - this.touchSwipeState.startX;
+ var dy = this.touchSwipeState.endY - this.touchSwipeState.startY;
+ var absAngle = Math.abs(Math.atan2(dy, dx));
+ if (Math.abs(dx) > SWIPE_MIN_DISTANCE_THRESHOLD && (absAngle <= SWIPE_ANGLE_THRESHOLD || absAngle >= Math.PI - SWIPE_ANGLE_THRESHOLD)) {
+ // horizontal swipe
+ delta = dx;
+ } else if (Math.abs(dy) > SWIPE_MIN_DISTANCE_THRESHOLD && Math.abs(absAngle - Math.PI / 2) <= SWIPE_ANGLE_THRESHOLD) {
+ // vertical swipe
+ delta = dy;
+ }
+ if (delta > 0) {
+ this._goToPreviousPage();
+ } else if (delta < 0) {
+ this._goToNextPage();
+ }
+ break;
+ }
+ },
+ /**
+ * @private
+ */
+ _addWindowListeners: function PDFPresentationMode_addWindowListeners() {
+ this.showControlsBind = this._showControls.bind(this);
+ this.mouseDownBind = this._mouseDown.bind(this);
+ this.mouseWheelBind = this._mouseWheel.bind(this);
+ this.resetMouseScrollStateBind = this._resetMouseScrollState.bind(this);
+ this.contextMenuBind = this._contextMenu.bind(this);
+ this.touchSwipeBind = this._touchSwipe.bind(this);
+ window.addEventListener('mousemove', this.showControlsBind);
+ window.addEventListener('mousedown', this.mouseDownBind);
+ window.addEventListener('wheel', this.mouseWheelBind);
+ window.addEventListener('keydown', this.resetMouseScrollStateBind);
+ window.addEventListener('contextmenu', this.contextMenuBind);
+ window.addEventListener('touchstart', this.touchSwipeBind);
+ window.addEventListener('touchmove', this.touchSwipeBind);
+ window.addEventListener('touchend', this.touchSwipeBind);
+ },
+ /**
+ * @private
+ */
+ _removeWindowListeners: function PDFPresentationMode_removeWindowListeners() {
+ window.removeEventListener('mousemove', this.showControlsBind);
+ window.removeEventListener('mousedown', this.mouseDownBind);
+ window.removeEventListener('wheel', this.mouseWheelBind);
+ window.removeEventListener('keydown', this.resetMouseScrollStateBind);
+ window.removeEventListener('contextmenu', this.contextMenuBind);
+ window.removeEventListener('touchstart', this.touchSwipeBind);
+ window.removeEventListener('touchmove', this.touchSwipeBind);
+ window.removeEventListener('touchend', this.touchSwipeBind);
+ delete this.showControlsBind;
+ delete this.mouseDownBind;
+ delete this.mouseWheelBind;
+ delete this.resetMouseScrollStateBind;
+ delete this.contextMenuBind;
+ delete this.touchSwipeBind;
+ },
+ /**
+ * @private
+ */
+ _fullscreenChange: function PDFPresentationMode_fullscreenChange() {
+ if (this.isFullscreen) {
+ this._enter();
+ } else {
+ this._exit();
+ }
+ },
+ /**
+ * @private
+ */
+ _addFullscreenChangeListeners: function PDFPresentationMode_addFullscreenChangeListeners() {
+ this.fullscreenChangeBind = this._fullscreenChange.bind(this);
+ window.addEventListener('fullscreenchange', this.fullscreenChangeBind);
+ window.addEventListener('mozfullscreenchange', this.fullscreenChangeBind);
+ },
+ /**
+ * @private
+ */
+ _removeFullscreenChangeListeners: function PDFPresentationMode_removeFullscreenChangeListeners() {
+ window.removeEventListener('fullscreenchange', this.fullscreenChangeBind);
+ window.removeEventListener('mozfullscreenchange', this.fullscreenChangeBind);
+ delete this.fullscreenChangeBind;
+ }
+ };
+ return PDFPresentationMode;
+ }();
+ exports.PDFPresentationMode = PDFPresentationMode;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFThumbnailView = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFRenderingQueue);
+ }(this, function (exports, uiUtils, pdfRenderingQueue) {
+ var mozL10n = uiUtils.mozL10n;
+ var getOutputScale = uiUtils.getOutputScale;
+ var RenderingStates = pdfRenderingQueue.RenderingStates;
+ var THUMBNAIL_WIDTH = 98;
+ // px
+ var THUMBNAIL_CANVAS_BORDER_WIDTH = 1;
+ // px
+ /**
+ * @typedef {Object} PDFThumbnailViewOptions
+ * @property {HTMLDivElement} container - The viewer element.
+ * @property {number} id - The thumbnail's unique ID (normally its number).
+ * @property {PageViewport} defaultViewport - The page viewport.
+ * @property {IPDFLinkService} linkService - The navigation/linking service.
+ * @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
+ * @property {boolean} disableCanvasToImageConversion - (optional) Don't convert
+ * the canvas thumbnails to images. This prevents `toDataURL` calls,
+ * but increases the overall memory usage. The default value is false.
+ */
+ /**
+ * @class
+ * @implements {IRenderableView}
+ */
+ var PDFThumbnailView = function PDFThumbnailViewClosure() {
+ function getTempCanvas(width, height) {
+ var tempCanvas = PDFThumbnailView.tempImageCache;
+ if (!tempCanvas) {
+ tempCanvas = document.createElement('canvas');
+ PDFThumbnailView.tempImageCache = tempCanvas;
+ }
+ tempCanvas.width = width;
+ tempCanvas.height = height;
+ tempCanvas.mozOpaque = true;
+ var ctx = tempCanvas.getContext('2d', { alpha: false });
+ ctx.save();
+ ctx.fillStyle = 'rgb(255, 255, 255)';
+ ctx.fillRect(0, 0, width, height);
+ ctx.restore();
+ return tempCanvas;
+ }
+ /**
+ * @constructs PDFThumbnailView
+ * @param {PDFThumbnailViewOptions} options
+ */
+ function PDFThumbnailView(options) {
+ var container = options.container;
+ var id = options.id;
+ var defaultViewport = options.defaultViewport;
+ var linkService = options.linkService;
+ var renderingQueue = options.renderingQueue;
+ var disableCanvasToImageConversion = options.disableCanvasToImageConversion || false;
+ this.id = id;
+ this.renderingId = 'thumbnail' + id;
+ this.pageLabel = null;
+ this.pdfPage = null;
+ this.rotation = 0;
+ this.viewport = defaultViewport;
+ this.pdfPageRotate = defaultViewport.rotation;
+ this.linkService = linkService;
+ this.renderingQueue = renderingQueue;
+ this.renderTask = null;
+ this.renderingState = RenderingStates.INITIAL;
+ this.resume = null;
+ this.disableCanvasToImageConversion = disableCanvasToImageConversion;
+ this.pageWidth = this.viewport.width;
+ this.pageHeight = this.viewport.height;
+ this.pageRatio = this.pageWidth / this.pageHeight;
+ this.canvasWidth = THUMBNAIL_WIDTH;
+ this.canvasHeight = this.canvasWidth / this.pageRatio | 0;
+ this.scale = this.canvasWidth / this.pageWidth;
+ var anchor = document.createElement('a');
+ anchor.href = linkService.getAnchorUrl('#page=' + id);
+ anchor.title = mozL10n.get('thumb_page_title', { page: id }, 'Page {{page}}');
+ anchor.onclick = function stopNavigation() {
+ linkService.page = id;
+ return false;
+ };
+ this.anchor = anchor;
+ var div = document.createElement('div');
+ div.id = 'thumbnailContainer' + id;
+ div.className = 'thumbnail';
+ this.div = div;
+ if (id === 1) {
+ // Highlight the thumbnail of the first page when no page number is
+ // specified (or exists in cache) when the document is loaded.
+ div.classList.add('selected');
+ }
+ var ring = document.createElement('div');
+ ring.className = 'thumbnailSelectionRing';
+ var borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
+ ring.style.width = this.canvasWidth + borderAdjustment + 'px';
+ ring.style.height = this.canvasHeight + borderAdjustment + 'px';
+ this.ring = ring;
+ div.appendChild(ring);
+ anchor.appendChild(div);
+ container.appendChild(anchor);
+ }
+ PDFThumbnailView.prototype = {
+ setPdfPage: function PDFThumbnailView_setPdfPage(pdfPage) {
+ this.pdfPage = pdfPage;
+ this.pdfPageRotate = pdfPage.rotate;
+ var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ this.viewport = pdfPage.getViewport(1, totalRotation);
+ this.reset();
+ },
+ reset: function PDFThumbnailView_reset() {
+ this.cancelRendering();
+ this.pageWidth = this.viewport.width;
+ this.pageHeight = this.viewport.height;
+ this.pageRatio = this.pageWidth / this.pageHeight;
+ this.canvasHeight = this.canvasWidth / this.pageRatio | 0;
+ this.scale = this.canvasWidth / this.pageWidth;
+ this.div.removeAttribute('data-loaded');
+ var ring = this.ring;
+ var childNodes = ring.childNodes;
+ for (var i = childNodes.length - 1; i >= 0; i--) {
+ ring.removeChild(childNodes[i]);
+ }
+ var borderAdjustment = 2 * THUMBNAIL_CANVAS_BORDER_WIDTH;
+ ring.style.width = this.canvasWidth + borderAdjustment + 'px';
+ ring.style.height = this.canvasHeight + borderAdjustment + 'px';
+ if (this.canvas) {
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ this.canvas.width = 0;
+ this.canvas.height = 0;
+ delete this.canvas;
+ }
+ if (this.image) {
+ this.image.removeAttribute('src');
+ delete this.image;
+ }
+ },
+ update: function PDFThumbnailView_update(rotation) {
+ if (typeof rotation !== 'undefined') {
+ this.rotation = rotation;
+ }
+ var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
+ this.viewport = this.viewport.clone({
+ scale: 1,
+ rotation: totalRotation
+ });
+ this.reset();
+ },
+ cancelRendering: function PDFThumbnailView_cancelRendering() {
+ if (this.renderTask) {
+ this.renderTask.cancel();
+ this.renderTask = null;
+ }
+ this.renderingState = RenderingStates.INITIAL;
+ this.resume = null;
+ },
+ /**
+ * @private
+ */
+ _getPageDrawContext: function PDFThumbnailView_getPageDrawContext(noCtxScale) {
+ var canvas = document.createElement('canvas');
+ // Keep the no-thumbnail outline visible, i.e. `data-loaded === false`,
+ // until rendering/image conversion is complete, to avoid display issues.
+ this.canvas = canvas;
+ canvas.mozOpaque = true;
+ var ctx = canvas.getContext('2d', { alpha: false });
+ var outputScale = getOutputScale(ctx);
+ canvas.width = this.canvasWidth * outputScale.sx | 0;
+ canvas.height = this.canvasHeight * outputScale.sy | 0;
+ canvas.style.width = this.canvasWidth + 'px';
+ canvas.style.height = this.canvasHeight + 'px';
+ if (!noCtxScale && outputScale.scaled) {
+ ctx.scale(outputScale.sx, outputScale.sy);
+ }
+ return ctx;
+ },
+ /**
+ * @private
+ */
+ _convertCanvasToImage: function PDFThumbnailView_convertCanvasToImage() {
+ if (!this.canvas) {
+ return;
+ }
+ if (this.renderingState !== RenderingStates.FINISHED) {
+ return;
+ }
+ var id = this.renderingId;
+ var className = 'thumbnailImage';
+ var ariaLabel = mozL10n.get('thumb_page_canvas', { page: this.pageId }, 'Thumbnail of Page {{page}}');
+ if (this.disableCanvasToImageConversion) {
+ this.canvas.id = id;
+ this.canvas.className = className;
+ this.canvas.setAttribute('aria-label', ariaLabel);
+ this.div.setAttribute('data-loaded', true);
+ this.ring.appendChild(this.canvas);
+ return;
+ }
+ var image = document.createElement('img');
+ image.id = id;
+ image.className = className;
+ image.setAttribute('aria-label', ariaLabel);
+ image.style.width = this.canvasWidth + 'px';
+ image.style.height = this.canvasHeight + 'px';
+ image.src = this.canvas.toDataURL();
+ this.image = image;
+ this.div.setAttribute('data-loaded', true);
+ this.ring.appendChild(image);
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ this.canvas.width = 0;
+ this.canvas.height = 0;
+ delete this.canvas;
+ },
+ draw: function PDFThumbnailView_draw() {
+ if (this.renderingState !== RenderingStates.INITIAL) {
+ console.error('Must be in new state before drawing');
+ return Promise.resolve(undefined);
+ }
+ this.renderingState = RenderingStates.RUNNING;
+ var resolveRenderPromise, rejectRenderPromise;
+ var promise = new Promise(function (resolve, reject) {
+ resolveRenderPromise = resolve;
+ rejectRenderPromise = reject;
+ });
+ var self = this;
+ function thumbnailDrawCallback(error) {
+ // The renderTask may have been replaced by a new one, so only remove
+ // the reference to the renderTask if it matches the one that is
+ // triggering this callback.
+ if (renderTask === self.renderTask) {
+ self.renderTask = null;
+ }
+ if (error === 'cancelled') {
+ rejectRenderPromise(error);
+ return;
+ }
+ self.renderingState = RenderingStates.FINISHED;
+ self._convertCanvasToImage();
+ if (!error) {
+ resolveRenderPromise(undefined);
+ } else {
+ rejectRenderPromise(error);
+ }
+ }
+ var ctx = this._getPageDrawContext();
+ var drawViewport = this.viewport.clone({ scale: this.scale });
+ var 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 renderContext = {
+ canvasContext: ctx,
+ viewport: drawViewport
+ };
+ var renderTask = this.renderTask = this.pdfPage.render(renderContext);
+ renderTask.onContinue = renderContinueCallback;
+ renderTask.promise.then(function pdfPageRenderCallback() {
+ thumbnailDrawCallback(null);
+ }, function pdfPageRenderError(error) {
+ thumbnailDrawCallback(error);
+ });
+ return promise;
+ },
+ setImage: function PDFThumbnailView_setImage(pageView) {
+ if (this.renderingState !== RenderingStates.INITIAL) {
+ return;
+ }
+ var img = pageView.canvas;
+ if (!img) {
+ return;
+ }
+ if (!this.pdfPage) {
+ this.setPdfPage(pageView.pdfPage);
+ }
+ this.renderingState = RenderingStates.FINISHED;
+ var ctx = this._getPageDrawContext(true);
+ var canvas = ctx.canvas;
+ if (img.width <= 2 * canvas.width) {
+ ctx.drawImage(img, 0, 0, img.width, img.height, 0, 0, canvas.width, canvas.height);
+ this._convertCanvasToImage();
+ return;
+ }
+ // drawImage does an awful job of rescaling the image, doing it gradually.
+ var MAX_NUM_SCALING_STEPS = 3;
+ var reducedWidth = canvas.width << MAX_NUM_SCALING_STEPS;
+ var reducedHeight = canvas.height << MAX_NUM_SCALING_STEPS;
+ var reducedImage = getTempCanvas(reducedWidth, reducedHeight);
+ var reducedImageCtx = reducedImage.getContext('2d');
+ while (reducedWidth > img.width || reducedHeight > img.height) {
+ reducedWidth >>= 1;
+ reducedHeight >>= 1;
+ }
+ reducedImageCtx.drawImage(img, 0, 0, img.width, img.height, 0, 0, reducedWidth, reducedHeight);
+ while (reducedWidth > 2 * canvas.width) {
+ reducedImageCtx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, reducedWidth >> 1, reducedHeight >> 1);
+ reducedWidth >>= 1;
+ reducedHeight >>= 1;
+ }
+ ctx.drawImage(reducedImage, 0, 0, reducedWidth, reducedHeight, 0, 0, canvas.width, canvas.height);
+ this._convertCanvasToImage();
+ },
+ get pageId() {
+ return this.pageLabel !== null ? this.pageLabel : this.id;
+ },
+ /**
+ * @param {string|null} label
+ */
+ setPageLabel: function PDFThumbnailView_setPageLabel(label) {
+ this.pageLabel = typeof label === 'string' ? label : null;
+ this.anchor.title = mozL10n.get('thumb_page_title', { page: this.pageId }, 'Page {{page}}');
+ if (this.renderingState !== RenderingStates.FINISHED) {
+ return;
+ }
+ var ariaLabel = mozL10n.get('thumb_page_canvas', { page: this.pageId }, 'Thumbnail of Page {{page}}');
+ if (this.image) {
+ this.image.setAttribute('aria-label', ariaLabel);
+ } else if (this.disableCanvasToImageConversion && this.canvas) {
+ this.canvas.setAttribute('aria-label', ariaLabel);
+ }
+ }
+ };
+ return PDFThumbnailView;
+ }();
+ PDFThumbnailView.tempImageCache = null;
+ exports.PDFThumbnailView = PDFThumbnailView;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebSecondaryToolbar = {}, root.pdfjsWebUIUtils);
+ }(this, function (exports, uiUtils) {
+ var SCROLLBAR_PADDING = uiUtils.SCROLLBAR_PADDING;
+ var mozL10n = uiUtils.mozL10n;
+ /**
+ * @typedef {Object} SecondaryToolbarOptions
+ * @property {HTMLDivElement} toolbar - Container for the secondary toolbar.
+ * @property {HTMLButtonElement} toggleButton - Button to toggle the visibility
+ * of the secondary toolbar.
+ * @property {HTMLDivElement} toolbarButtonContainer - Container where all the
+ * toolbar buttons are placed. The maximum height of the toolbar is controlled
+ * dynamically by adjusting the 'max-height' CSS property of this DOM element.
+ * @property {HTMLButtonElement} presentationModeButton - Button for entering
+ * presentation mode.
+ * @property {HTMLButtonElement} openFileButton - Button to open a file.
+ * @property {HTMLButtonElement} printButton - Button to print the document.
+ * @property {HTMLButtonElement} downloadButton - Button to download the
+ * document.
+ * @property {HTMLLinkElement} viewBookmarkButton - Button to obtain a bookmark
+ * link to the current location in the document.
+ * @property {HTMLButtonElement} firstPageButton - Button to go to the first
+ * page in the document.
+ * @property {HTMLButtonElement} lastPageButton - Button to go to the last page
+ * in the document.
+ * @property {HTMLButtonElement} pageRotateCwButton - Button to rotate the pages
+ * clockwise.
+ * @property {HTMLButtonElement} pageRotateCcwButton - Button to rotate the
+ * pages counterclockwise.
+ * @property {HTMLButtonElement} toggleHandToolButton - Button to toggle the
+ * hand tool.
+ * @property {HTMLButtonElement} documentPropertiesButton - Button for opening
+ * the document properties dialog.
+ */
+ /**
+ * @class
+ */
+ var SecondaryToolbar = function SecondaryToolbarClosure() {
+ /**
+ * @constructs SecondaryToolbar
+ * @param {SecondaryToolbarOptions} options
+ * @param {HTMLDivElement} mainContainer
+ * @param {EventBus} eventBus
+ */
+ function SecondaryToolbar(options, mainContainer, eventBus) {
+ this.toolbar = options.toolbar;
+ this.toggleButton = options.toggleButton;
+ this.toolbarButtonContainer = options.toolbarButtonContainer;
+ this.buttons = [
+ {
+ element: options.presentationModeButton,
+ eventName: 'presentationmode',
+ close: true
+ },
+ {
+ element: options.openFileButton,
+ eventName: 'openfile',
+ close: true
+ },
+ {
+ element: options.printButton,
+ eventName: 'print',
+ close: true
+ },
+ {
+ element: options.downloadButton,
+ eventName: 'download',
+ close: true
+ },
+ {
+ element: options.viewBookmarkButton,
+ eventName: null,
+ close: true
+ },
+ {
+ element: options.firstPageButton,
+ eventName: 'firstpage',
+ close: true
+ },
+ {
+ element: options.lastPageButton,
+ eventName: 'lastpage',
+ close: true
+ },
+ {
+ element: options.pageRotateCwButton,
+ eventName: 'rotatecw',
+ close: false
+ },
+ {
+ element: options.pageRotateCcwButton,
+ eventName: 'rotateccw',
+ close: false
+ },
+ {
+ element: options.toggleHandToolButton,
+ eventName: 'togglehandtool',
+ close: true
+ },
+ {
+ element: options.documentPropertiesButton,
+ eventName: 'documentproperties',
+ close: true
+ }
+ ];
+ this.mainContainer = mainContainer;
+ this.eventBus = eventBus;
+ this.opened = false;
+ this.containerHeight = null;
+ this.previousContainerHeight = null;
+ // Bind the event listeners for click and hand tool actions.
+ this._bindClickListeners();
+ this._bindHandToolListener(options.toggleHandToolButton);
+ // Bind the event listener for adjusting the 'max-height' of the toolbar.
+ this.eventBus.on('resize', this._setMaxHeight.bind(this));
+ }
+ SecondaryToolbar.prototype = {
+ /**
+ * @return {boolean}
+ */
+ get isOpen() {
+ return this.opened;
+ },
+ _bindClickListeners: function SecondaryToolbar_bindClickListeners() {
+ // Button to toggle the visibility of the secondary toolbar.
+ this.toggleButton.addEventListener('click', this.toggle.bind(this));
+ // All items within the secondary toolbar.
+ for (var button in this.buttons) {
+ var element = this.buttons[button].element;
+ var eventName = this.buttons[button].eventName;
+ var close = this.buttons[button].close;
+ element.addEventListener('click', function (eventName, close) {
+ if (eventName !== null) {
+ this.eventBus.dispatch(eventName, { source: this });
+ }
+ if (close) {
+ this.close();
+ }
+ }.bind(this, eventName, close));
+ }
+ },
+ _bindHandToolListener: function SecondaryToolbar_bindHandToolListener(toggleHandToolButton) {
+ var isHandToolActive = false;
+ this.eventBus.on('handtoolchanged', function (e) {
+ if (isHandToolActive === e.isActive) {
+ return;
+ }
+ isHandToolActive = e.isActive;
+ if (isHandToolActive) {
+ toggleHandToolButton.title = mozL10n.get('hand_tool_disable.title', null, 'Disable hand tool');
+ toggleHandToolButton.firstElementChild.textContent = mozL10n.get('hand_tool_disable_label', null, 'Disable hand tool');
+ } else {
+ toggleHandToolButton.title = mozL10n.get('hand_tool_enable.title', null, 'Enable hand tool');
+ toggleHandToolButton.firstElementChild.textContent = mozL10n.get('hand_tool_enable_label', null, 'Enable hand tool');
+ }
+ }.bind(this));
+ },
+ open: function SecondaryToolbar_open() {
+ if (this.opened) {
+ return;
+ }
+ this.opened = true;
+ this._setMaxHeight();
+ this.toggleButton.classList.add('toggled');
+ this.toolbar.classList.remove('hidden');
+ },
+ close: function SecondaryToolbar_close() {
+ if (!this.opened) {
+ return;
+ }
+ this.opened = false;
+ this.toolbar.classList.add('hidden');
+ this.toggleButton.classList.remove('toggled');
+ },
+ toggle: function SecondaryToolbar_toggle() {
+ if (this.opened) {
+ this.close();
+ } else {
+ this.open();
+ }
+ },
+ /**
+ * @private
+ */
+ _setMaxHeight: function SecondaryToolbar_setMaxHeight() {
+ if (!this.opened) {
+ return;
+ }
+ // Only adjust the 'max-height' if the toolbar is visible.
+ this.containerHeight = this.mainContainer.clientHeight;
+ if (this.containerHeight === this.previousContainerHeight) {
+ return;
+ }
+ this.toolbarButtonContainer.setAttribute('style', 'max-height: ' + (this.containerHeight - SCROLLBAR_PADDING) + 'px;');
+ this.previousContainerHeight = this.containerHeight;
+ }
+ };
+ return SecondaryToolbar;
+ }();
+ exports.SecondaryToolbar = SecondaryToolbar;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFFindBar = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFFindController);
+ }(this, function (exports, uiUtils, pdfFindController) {
+ var mozL10n = uiUtils.mozL10n;
+ var FindStates = pdfFindController.FindStates;
+ /**
+ * Creates a "search bar" given a set of DOM elements that act as controls
+ * for searching or for setting search preferences in the UI. This object
+ * also sets up the appropriate events for the controls. Actual searching
+ * is done by PDFFindController.
+ */
+ var PDFFindBar = function PDFFindBarClosure() {
+ function PDFFindBar(options) {
+ this.opened = false;
+ this.bar = options.bar || null;
+ this.toggleButton = options.toggleButton || null;
+ this.findField = options.findField || null;
+ this.highlightAll = options.highlightAllCheckbox || null;
+ this.caseSensitive = options.caseSensitiveCheckbox || null;
+ this.findMsg = options.findMsg || null;
+ this.findResultsCount = options.findResultsCount || null;
+ this.findStatusIcon = options.findStatusIcon || null;
+ this.findPreviousButton = options.findPreviousButton || null;
+ this.findNextButton = options.findNextButton || null;
+ this.findController = options.findController || null;
+ this.eventBus = options.eventBus;
+ if (this.findController === null) {
+ throw new Error('PDFFindBar cannot be used without a ' + 'PDFFindController instance.');
+ }
+ // Add event listeners to the DOM elements.
+ var self = this;
+ this.toggleButton.addEventListener('click', function () {
+ self.toggle();
+ });
+ this.findField.addEventListener('input', function () {
+ self.dispatchEvent('');
+ });
+ this.bar.addEventListener('keydown', function (evt) {
+ switch (evt.keyCode) {
+ case 13:
+ // Enter
+ if (evt.target === self.findField) {
+ self.dispatchEvent('again', evt.shiftKey);
+ }
+ break;
+ case 27:
+ // Escape
+ self.close();
+ break;
+ }
+ });
+ this.findPreviousButton.addEventListener('click', function () {
+ self.dispatchEvent('again', true);
+ });
+ this.findNextButton.addEventListener('click', function () {
+ self.dispatchEvent('again', false);
+ });
+ this.highlightAll.addEventListener('click', function () {
+ self.dispatchEvent('highlightallchange');
+ });
+ this.caseSensitive.addEventListener('click', function () {
+ self.dispatchEvent('casesensitivitychange');
+ });
+ }
+ PDFFindBar.prototype = {
+ reset: function PDFFindBar_reset() {
+ this.updateUIState();
+ },
+ dispatchEvent: function PDFFindBar_dispatchEvent(type, findPrev) {
+ this.eventBus.dispatch('find', {
+ source: this,
+ type: type,
+ query: this.findField.value,
+ caseSensitive: this.caseSensitive.checked,
+ phraseSearch: true,
+ highlightAll: this.highlightAll.checked,
+ findPrevious: findPrev
+ });
+ },
+ updateUIState: function PDFFindBar_updateUIState(state, previous, matchCount) {
+ var notFound = false;
+ var findMsg = '';
+ var status = '';
+ switch (state) {
+ case FindStates.FIND_FOUND:
+ break;
+ case FindStates.FIND_PENDING:
+ status = 'pending';
+ break;
+ case FindStates.FIND_NOTFOUND:
+ findMsg = mozL10n.get('find_not_found', null, 'Phrase not found');
+ notFound = true;
+ break;
+ case FindStates.FIND_WRAPPED:
+ if (previous) {
+ findMsg = mozL10n.get('find_reached_top', null, 'Reached top of document, continued from bottom');
+ } else {
+ findMsg = mozL10n.get('find_reached_bottom', null, 'Reached end of document, continued from top');
+ }
+ break;
+ }
+ if (notFound) {
+ this.findField.classList.add('notFound');
+ } else {
+ this.findField.classList.remove('notFound');
+ }
+ this.findField.setAttribute('data-status', status);
+ this.findMsg.textContent = findMsg;
+ this.updateResultsCount(matchCount);
+ },
+ updateResultsCount: function (matchCount) {
+ if (!this.findResultsCount) {
+ return;
+ }
+ // no UI control is provided
+ // If there are no matches, hide the counter
+ if (!matchCount) {
+ this.findResultsCount.classList.add('hidden');
+ return;
+ }
+ // Create the match counter
+ this.findResultsCount.textContent = matchCount.toLocaleString();
+ // Show the counter
+ this.findResultsCount.classList.remove('hidden');
+ },
+ open: function PDFFindBar_open() {
+ if (!this.opened) {
+ this.opened = true;
+ this.toggleButton.classList.add('toggled');
+ this.bar.classList.remove('hidden');
+ }
+ this.findField.select();
+ this.findField.focus();
+ },
+ close: function PDFFindBar_close() {
+ if (!this.opened) {
+ return;
+ }
+ this.opened = false;
+ this.toggleButton.classList.remove('toggled');
+ this.bar.classList.add('hidden');
+ this.findController.active = false;
+ },
+ toggle: function PDFFindBar_toggle() {
+ if (this.opened) {
+ this.close();
+ } else {
+ this.open();
+ }
+ }
+ };
+ return PDFFindBar;
+ }();
+ exports.PDFFindBar = PDFFindBar;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFHistory = {}, root.pdfjsWebDOMEvents);
+ }(this, function (exports, domEvents) {
+ function PDFHistory(options) {
+ this.linkService = options.linkService;
+ this.eventBus = options.eventBus || domEvents.getGlobalEventBus();
+ this.initialized = false;
+ this.initialDestination = null;
+ this.initialBookmark = null;
+ }
+ PDFHistory.prototype = {
+ /**
+ * @param {string} fingerprint
+ */
+ 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)) {
+ // This corresponds to navigating back to the document
+ // from another page in the browser history.
+ 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 {
+ // This corresponds to the loading of a new document.
+ if (state && state.fingerprint && this.fingerprint !== state.fingerprint) {
+ // Reinitialize the browsing history when a new document
+ // is opened in the web viewer.
+ 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) {
+ // Move back/forward in the history.
+ self._goTo(evt.state);
+ return;
+ }
+ // If the state is not set, then the user tried to navigate to a
+ // different hash by manually editing the URL and pressing Enter, or by
+ // clicking on an in-page link (e.g. the "current view" link).
+ // Save the current view state to the browser history.
+ // Note: In Firefox, history.null could also be null after an in-page
+ // navigation to the same URL, and without dispatching the popstate
+ // event: https://bugzilla.mozilla.org/show_bug.cgi?id=1183881
+ if (self.uid === 0) {
+ // Replace the previous state if it was not explicitly set.
+ var previousParams = self.previousHash && self.currentBookmark && self.previousHash !== self.currentBookmark ? {
+ hash: self.currentBookmark,
+ page: self.currentPage
+ } : { page: 1 };
+ replacePreviousHistoryState(previousParams, function () {
+ updateHistoryWithCurrentHash();
+ });
+ } else {
+ updateHistoryWithCurrentHash();
+ }
+ }, false);
+ function updateHistoryWithCurrentHash() {
+ self.previousHash = window.location.hash.slice(1);
+ self._pushToHistory({ hash: self.previousHash }, false, true);
+ self._updatePreviousBookmark();
+ }
+ function replacePreviousHistoryState(params, callback) {
+ // To modify the previous history entry, the following happens:
+ // 1. history.back()
+ // 2. _pushToHistory, which calls history.replaceState( ... )
+ // 3. history.forward()
+ // Because a navigation via the history API does not immediately update
+ // the history state, the popstate event is used for synchronization.
+ self.historyUnlocked = false;
+ // Suppress the hashchange event to avoid side effects caused by
+ // navigating back and forward.
+ 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();
+ }
+ // Remove the event listener when navigating away from the document,
+ // since 'beforeunload' prevents Firefox from caching the document.
+ window.removeEventListener('beforeunload', pdfHistoryBeforeUnload, false);
+ }
+ window.addEventListener('beforeunload', pdfHistoryBeforeUnload, false);
+ window.addEventListener('pageshow', function pdfHistoryPageShow(evt) {
+ // If the entire viewer (including the PDF file) is cached in
+ // the browser, we need to reattach the 'beforeunload' event listener
+ // since the 'DOMContentLoaded' event is not fired on 'pageshow'.
+ window.addEventListener('beforeunload', pdfHistoryBeforeUnload, false);
+ }, false);
+ 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, '');
+ } else {
+ window.history.pushState(stateObj, '');
+ }
+ },
+ 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) {
+ // Invoked when the user specifies an initial bookmark,
+ // thus setting initialBookmark, when the document is loaded.
+ this._pushToHistory(params, false);
+ this.previousHash = window.location.hash.substring(1);
+ }
+ this.updatePreviousBookmark = this.nextHashParam ? false : true;
+ if (target) {
+ // If the current document is reloaded,
+ // avoid creating duplicate entries in the history.
+ this._updatePreviousBookmark();
+ }
+ return;
+ }
+ if (this.nextHashParam) {
+ if (this.nextHashParam === params.hash) {
+ this.nextHashParam = null;
+ this.updatePreviousBookmark = true;
+ return;
+ } else {
+ 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)) {
+ // Prevent the history from getting stuck in the current state,
+ // effectively preventing the user from going back/forward in
+ // the history.
+ //
+ // This happens if the current position in the document didn't change
+ // when the history was previously updated. The reasons for this are
+ // either:
+ // 1. The current zoom value is such that the document does not need to,
+ // or cannot, be scrolled to display the destination.
+ // 2. The previous destination is broken, and doesn't actally point to a
+ // position within the document.
+ // (This is either due to a bad PDF generator, or the user making a
+ // mistake when entering a destination in the hash parameters.)
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFLinkService = {}, root.pdfjsWebUIUtils, root.pdfjsWebDOMEvents);
+ }(this, function (exports, uiUtils, domEvents) {
+ var parseQueryString = uiUtils.parseQueryString;
+ var PageNumberRegExp = /^\d+$/;
+ function isPageNumber(str) {
+ return PageNumberRegExp.test(str);
+ }
+ /**
+ * @typedef {Object} PDFLinkServiceOptions
+ * @property {EventBus} eventBus - The application event bus.
+ */
+ /**
+ * Performs navigation functions inside PDF, such as opening specified page,
+ * or destination.
+ * @class
+ * @implements {IPDFLinkService}
+ */
+ var PDFLinkService = function PDFLinkServiceClosure() {
+ /**
+ * @constructs PDFLinkService
+ * @param {PDFLinkServiceOptions} options
+ */
+ 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;
+ },
+ /**
+ * @returns {number}
+ */
+ get pagesCount() {
+ return this.pdfDocument ? this.pdfDocument.numPages : 0;
+ },
+ /**
+ * @returns {number}
+ */
+ get page() {
+ return this.pdfViewer.currentPageNumber;
+ },
+ /**
+ * @param {number} value
+ */
+ set page(value) {
+ this.pdfViewer.currentPageNumber = value;
+ },
+ /**
+ * @param dest - The PDF destination object.
+ */
+ navigateTo: function PDFLinkService_navigateTo(dest) {
+ var destString = '';
+ var self = this;
+ var goToDestination = function (destRef) {
+ // dest array looks like that: <page-ref> </XYZ|/FitXXX> <args..>
+ var pageNumber;
+ if (destRef instanceof Object) {
+ pageNumber = self._cachedPageNumber(destRef);
+ } else if ((destRef | 0) === destRef) {
+ // Integer
+ 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) {
+ // Update the browsing history.
+ 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.');
+ return;
+ });
+ }
+ };
+ 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]);
+ });
+ },
+ /**
+ * @param dest - The PDF destination object.
+ * @returns {string} The hyperlink to the PDF object.
+ */
+ getDestinationHash: function PDFLinkService_getDestinationHash(dest) {
+ if (typeof dest === 'string') {
+ // In practice, a named destination may contain only a number.
+ // If that happens, use the '#nameddest=' form to avoid the link
+ // redirecting to a page, instead of the correct destination.
+ 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('');
+ },
+ /**
+ * Prefix the full url on anchor links to make sure that links are resolved
+ * relative to the current URL instead of the one defined in <base href>.
+ * @param {String} anchor The anchor hash, including the #.
+ * @returns {string} The hyperlink to the PDF object.
+ */
+ getAnchorUrl: function PDFLinkService_getAnchorUrl(anchor) {
+ return (this.baseUrl || '') + anchor;
+ },
+ /**
+ * @param {string} hash
+ */
+ 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'
+ });
+ }
+ // borrowing syntax from "Parameters for Opening PDF Files"
+ 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) {
+ // Build the destination array.
+ var zoomArgs = params.zoom.split(',');
+ // scale,left,top
+ var zoomArg = zoomArgs[0];
+ var zoomArgNumber = parseFloat(zoomArg);
+ if (zoomArg.indexOf('Fit') === -1) {
+ // If the zoomArg is a number, it has to get divided by 100. If it's
+ // a string, it should stay as it is.
+ 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;
+ }
+ // simple page
+ if ('pagemode' in params) {
+ this.eventBus.dispatch('pagemode', {
+ source: this,
+ mode: params.pagemode
+ });
+ }
+ } else {
+ dest = unescape(hash);
+ try {
+ dest = JSON.parse(dest);
+ if (!(dest instanceof Array)) {
+ // Avoid incorrectly rejecting a valid named destination, such as
+ // e.g. "4.3" or "true", because `JSON.parse` converted its type.
+ 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.');
+ }
+ },
+ /**
+ * @param {string} action
+ */
+ executeNamedAction: function PDFLinkService_executeNamedAction(action) {
+ // See PDF reference, table 8.45 - Named 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;
+ }
+ // No action according to spec
+ this.eventBus.dispatch('namedaction', {
+ source: this,
+ action: action
+ });
+ },
+ /**
+ * @param {number} pageNum - page number.
+ * @param {Object} pageRef - reference to the page.
+ */
+ 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 = {
+ /**
+ * @returns {number}
+ */
+ get page() {
+ return 0;
+ },
+ /**
+ * @param {number} value
+ */
+ set page(value) {
+ },
+ /**
+ * @param dest - The PDF destination object.
+ */
+ navigateTo: function (dest) {
+ },
+ /**
+ * @param dest - The PDF destination object.
+ * @returns {string} The hyperlink to the PDF object.
+ */
+ getDestinationHash: function (dest) {
+ return '#';
+ },
+ /**
+ * @param hash - The PDF parameters/hash.
+ * @returns {string} The hyperlink to the PDF object.
+ */
+ getAnchorUrl: function (hash) {
+ return '#';
+ },
+ /**
+ * @param {string} hash
+ */
+ setHash: function (hash) {
+ },
+ /**
+ * @param {string} action
+ */
+ executeNamedAction: function (action) {
+ },
+ /**
+ * @param {number} pageNum - page number.
+ * @param {Object} pageRef - reference to the page.
+ */
+ cachePageRef: function (pageNum, pageRef) {
+ }
+ };
+ return SimpleLinkService;
+ }();
+ exports.PDFLinkService = PDFLinkService;
+ exports.SimpleLinkService = SimpleLinkService;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFPageView = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFRenderingQueue, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtils, pdfRenderingQueue, domEvents, pdfjsLib) {
+ 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 RenderingStates = pdfRenderingQueue.RenderingStates;
+ var TEXT_LAYER_RENDER_DELAY = 200;
+ // ms
+ /**
+ * @typedef {Object} PDFPageViewOptions
+ * @property {HTMLDivElement} container - The viewer element.
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {number} id - The page unique ID (normally its number).
+ * @property {number} scale - The page scale display.
+ * @property {PageViewport} defaultViewport - The page viewport.
+ * @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
+ * @property {IPDFTextLayerFactory} textLayerFactory
+ * @property {IPDFAnnotationLayerFactory} annotationLayerFactory
+ * @property {boolean} enhanceTextSelection - Turns on the text selection
+ * enhancement. The default is `false`.
+ * @property {boolean} renderInteractiveForms - Turns on rendering of
+ * interactive form elements. The default is `false`.
+ */
+ /**
+ * @class
+ * @implements {IRenderableView}
+ */
+ var PDFPageView = function PDFPageViewClosure() {
+ /**
+ * @constructs PDFPageView
+ * @param {PDFPageViewOptions} options
+ */
+ 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.renderTask = null;
+ this.renderingState = RenderingStates.INITIAL;
+ this.resume = null;
+ this.onBeforeDraw = null;
+ this.onAfterDraw = null;
+ this.textLayer = null;
+ this.zoomLayer = null;
+ this.annotationLayer = null;
+ var div = document.createElement('div');
+ div.id = 'pageContainer' + this.id;
+ 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) {
+ // Hide annotationLayer until all elements are resized
+ // so they are not displayed on the already-resized page
+ this.annotationLayer.hide();
+ } else {
+ this.annotationLayer = null;
+ }
+ if (this.canvas && !currentZoomLayerNode) {
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ this.canvas.width = 0;
+ this.canvas.height = 0;
+ delete this.canvas;
+ }
+ 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
+ });
+ 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(/* keepZoomLayer = */
+ true, /* keepAnnotations = */
+ true);
+ },
+ cancelRendering: function PDFPageView_cancelRendering() {
+ if (this.renderTask) {
+ this.renderTask.cancel();
+ this.renderTask = null;
+ }
+ this.renderingState = RenderingStates.INITIAL;
+ this.resume = null;
+ if (this.textLayer) {
+ this.textLayer.cancel();
+ this.textLayer = null;
+ }
+ },
+ /**
+ * Called when moved in the parent's container.
+ */
+ updatePosition: function PDFPageView_updatePosition() {
+ if (this.textLayer) {
+ this.textLayer.render(TEXT_LAYER_RENDER_DELAY);
+ }
+ },
+ cssTransform: function PDFPageView_transform(canvas, redrawAnnotations) {
+ var CustomStyle = pdfjsLib.CustomStyle;
+ // Scale canvas, canvas wrapper, and page container.
+ var width = this.viewport.width;
+ var height = this.viewport.height;
+ var div = this.div;
+ canvas.style.width = canvas.parentNode.style.width = div.style.width = Math.floor(width) + 'px';
+ canvas.style.height = canvas.parentNode.style.height = div.style.height = Math.floor(height) + 'px';
+ // The canvas may have been originally rotated, rotate relative to that.
+ var relativeRotation = this.viewport.rotation - canvas._viewport.rotation;
+ var absRotation = Math.abs(relativeRotation);
+ var scaleX = 1, scaleY = 1;
+ if (absRotation === 90 || absRotation === 270) {
+ // Scale x and y because of the rotation.
+ scaleX = height / width;
+ scaleY = width / height;
+ }
+ var cssTransform = 'rotate(' + relativeRotation + 'deg) ' + 'scale(' + scaleX + ',' + scaleY + ')';
+ CustomStyle.setProp('transform', canvas, cssTransform);
+ if (this.textLayer) {
+ // Rotating the text layer is more complicated since the divs inside the
+ // the text layer are rotated.
+ // TODO: This could probably be simplified by drawing the text layer in
+ // one orientation then rotating overall.
+ 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();
+ }
+ // Ensure that we reset all state to prevent issues.
+ this.renderingState = RenderingStates.RUNNING;
+ var pdfPage = this.pdfPage;
+ var viewport = this.viewport;
+ var div = this.div;
+ // Wrap the canvas so if it has a css transform for highdpi the overflow
+ // will be hidden in FF.
+ var canvasWrapper = document.createElement('div');
+ canvasWrapper.style.width = div.style.width;
+ canvasWrapper.style.height = div.style.height;
+ canvasWrapper.classList.add('canvasWrapper');
+ var canvas = document.createElement('canvas');
+ canvas.id = 'page' + this.id;
+ // Keep the canvas hidden until the first draw callback, or until drawing
+ // is complete when `!this.renderingQueue`, to prevent black flickering.
+ canvas.setAttribute('hidden', 'hidden');
+ var isCanvasHidden = true;
+ canvasWrapper.appendChild(canvas);
+ if (this.annotationLayer && this.annotationLayer.div) {
+ // annotationLayer needs to stay on top
+ div.insertBefore(canvasWrapper, this.annotationLayer.div);
+ } else {
+ div.appendChild(canvasWrapper);
+ }
+ 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 });
+ // Use a scale that will make the canvas be the original intended size
+ // of the page.
+ 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';
+ // Add the viewport so it's known what it was originally drawn with.
+ canvas._viewport = viewport;
+ 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) {
+ // annotationLayer needs to stay on top
+ 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 resolveRenderPromise, rejectRenderPromise;
+ var promise = new Promise(function (resolve, reject) {
+ resolveRenderPromise = resolve;
+ rejectRenderPromise = reject;
+ });
+ // Rendering area
+ var self = this;
+ function pageViewDrawCallback(error) {
+ // The renderTask may have been replaced by a new one, so only remove
+ // the reference to the renderTask if it matches the one that is
+ // triggering this callback.
+ if (renderTask === self.renderTask) {
+ self.renderTask = null;
+ }
+ if (error === 'cancelled') {
+ rejectRenderPromise(error);
+ return;
+ }
+ self.renderingState = RenderingStates.FINISHED;
+ if (isCanvasHidden) {
+ self.canvas.removeAttribute('hidden');
+ isCanvasHidden = false;
+ }
+ if (self.loadingIconDiv) {
+ div.removeChild(self.loadingIconDiv);
+ delete self.loadingIconDiv;
+ }
+ if (self.zoomLayer) {
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ var zoomLayerCanvas = self.zoomLayer.firstChild;
+ zoomLayerCanvas.width = 0;
+ zoomLayerCanvas.height = 0;
+ if (div.contains(self.zoomLayer)) {
+ // Prevent "Node was not found" errors if the `zoomLayer` was
+ // already removed. This may occur intermittently if the scale
+ // changes many times in very quick succession.
+ 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) {
+ resolveRenderPromise(undefined);
+ } else {
+ rejectRenderPromise(error);
+ }
+ }
+ 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;
+ }
+ if (isCanvasHidden) {
+ self.canvas.removeAttribute('hidden');
+ isCanvasHidden = false;
+ }
+ cont();
+ };
+ }
+ 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
+ };
+ // intent: 'default', // === 'display'
+ var renderTask = this.renderTask = this.pdfPage.render(renderContext);
+ renderTask.onContinue = renderContinueCallback;
+ this.renderTask.promise.then(function pdfPageRenderCallback() {
+ pageViewDrawCallback(null);
+ if (textLayer) {
+ self.pdfPage.getTextContent({ normalizeWhitespace: true }).then(function textContentResolved(textContent) {
+ textLayer.setTextContent(textContent);
+ textLayer.render(TEXT_LAYER_RENDER_DELAY);
+ });
+ }
+ }, function pdfPageRenderError(error) {
+ pageViewDrawCallback(error);
+ });
+ if (this.annotationLayerFactory) {
+ if (!this.annotationLayer) {
+ this.annotationLayer = this.annotationLayerFactory.createAnnotationLayerBuilder(div, this.pdfPage, this.renderInteractiveForms);
+ }
+ this.annotationLayer.render(this.viewport, 'display');
+ }
+ div.setAttribute('data-loaded', true);
+ if (self.onBeforeDraw) {
+ self.onBeforeDraw();
+ }
+ return promise;
+ },
+ /**
+ * @param {string|null} label
+ */
+ 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;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFThumbnailViewer = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFThumbnailView);
+ }(this, function (exports, uiUtils, pdfThumbnailView) {
+ var watchScroll = uiUtils.watchScroll;
+ var getVisibleElements = uiUtils.getVisibleElements;
+ var scrollIntoView = uiUtils.scrollIntoView;
+ var PDFThumbnailView = pdfThumbnailView.PDFThumbnailView;
+ var THUMBNAIL_SCROLL_MARGIN = -19;
+ /**
+ * @typedef {Object} PDFThumbnailViewerOptions
+ * @property {HTMLDivElement} container - The container for the thumbnail
+ * elements.
+ * @property {IPDFLinkService} linkService - The navigation/linking service.
+ * @property {PDFRenderingQueue} renderingQueue - The rendering queue object.
+ */
+ /**
+ * Simple viewer control to display thumbnails for pages.
+ * @class
+ * @implements {IRenderableView}
+ */
+ var PDFThumbnailViewer = function PDFThumbnailViewerClosure() {
+ /**
+ * @constructs PDFThumbnailViewer
+ * @param {PDFThumbnailViewerOptions} options
+ */
+ function PDFThumbnailViewer(options) {
+ this.container = options.container;
+ this.renderingQueue = options.renderingQueue;
+ this.linkService = options.linkService;
+ this.scroll = watchScroll(this.container, this._scrollUpdated.bind(this));
+ this._resetView();
+ }
+ PDFThumbnailViewer.prototype = {
+ /**
+ * @private
+ */
+ _scrollUpdated: function PDFThumbnailViewer_scrollUpdated() {
+ this.renderingQueue.renderHighestPriority();
+ },
+ getThumbnail: function PDFThumbnailViewer_getThumbnail(index) {
+ return this.thumbnails[index];
+ },
+ /**
+ * @private
+ */
+ _getVisibleThumbs: function PDFThumbnailViewer_getVisibleThumbs() {
+ return getVisibleElements(this.container, this.thumbnails);
+ },
+ scrollThumbnailIntoView: function PDFThumbnailViewer_scrollThumbnailIntoView(page) {
+ var selected = document.querySelector('.thumbnail.selected');
+ if (selected) {
+ selected.classList.remove('selected');
+ }
+ var thumbnail = document.getElementById('thumbnailContainer' + page);
+ if (thumbnail) {
+ thumbnail.classList.add('selected');
+ }
+ var visibleThumbs = this._getVisibleThumbs();
+ var numVisibleThumbs = visibleThumbs.views.length;
+ // If the thumbnail isn't currently visible, scroll it into view.
+ if (numVisibleThumbs > 0) {
+ var first = visibleThumbs.first.id;
+ // Account for only one thumbnail being visible.
+ var last = numVisibleThumbs > 1 ? visibleThumbs.last.id : first;
+ if (page <= first || page >= last) {
+ scrollIntoView(thumbnail, { top: THUMBNAIL_SCROLL_MARGIN });
+ }
+ }
+ },
+ get pagesRotation() {
+ return this._pagesRotation;
+ },
+ set pagesRotation(rotation) {
+ this._pagesRotation = rotation;
+ for (var i = 0, l = this.thumbnails.length; i < l; i++) {
+ var thumb = this.thumbnails[i];
+ thumb.update(rotation);
+ }
+ },
+ cleanup: function PDFThumbnailViewer_cleanup() {
+ var tempCanvas = PDFThumbnailView.tempImageCache;
+ if (tempCanvas) {
+ // Zeroing the width and height causes Firefox to release graphics
+ // resources immediately, which can greatly reduce memory consumption.
+ tempCanvas.width = 0;
+ tempCanvas.height = 0;
+ }
+ PDFThumbnailView.tempImageCache = null;
+ },
+ /**
+ * @private
+ */
+ _resetView: function PDFThumbnailViewer_resetView() {
+ this.thumbnails = [];
+ this._pageLabels = null;
+ this._pagesRotation = 0;
+ this._pagesRequests = [];
+ // Remove the thumbnails from the DOM.
+ this.container.textContent = '';
+ },
+ setDocument: function PDFThumbnailViewer_setDocument(pdfDocument) {
+ if (this.pdfDocument) {
+ this._cancelRendering();
+ this._resetView();
+ }
+ this.pdfDocument = pdfDocument;
+ if (!pdfDocument) {
+ return Promise.resolve();
+ }
+ return pdfDocument.getPage(1).then(function (firstPage) {
+ var pagesCount = pdfDocument.numPages;
+ var viewport = firstPage.getViewport(1.0);
+ for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
+ var thumbnail = new PDFThumbnailView({
+ container: this.container,
+ id: pageNum,
+ defaultViewport: viewport.clone(),
+ linkService: this.linkService,
+ renderingQueue: this.renderingQueue,
+ disableCanvasToImageConversion: false
+ });
+ this.thumbnails.push(thumbnail);
+ }
+ }.bind(this));
+ },
+ /**
+ * @private
+ */
+ _cancelRendering: function PDFThumbnailViewer_cancelRendering() {
+ for (var i = 0, ii = this.thumbnails.length; i < ii; i++) {
+ if (this.thumbnails[i]) {
+ this.thumbnails[i].cancelRendering();
+ }
+ }
+ },
+ /**
+ * @param {Array|null} labels
+ */
+ setPageLabels: function PDFThumbnailViewer_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('PDFThumbnailViewer_setPageLabels: Invalid page labels.');
+ } else {
+ this._pageLabels = labels;
+ }
+ // Update all the `PDFThumbnailView` instances.
+ for (var i = 0, ii = this.thumbnails.length; i < ii; i++) {
+ var thumbnailView = this.thumbnails[i];
+ var label = this._pageLabels && this._pageLabels[i];
+ thumbnailView.setPageLabel(label);
+ }
+ },
+ /**
+ * @param {PDFThumbnailView} thumbView
+ * @returns {PDFPage}
+ * @private
+ */
+ _ensurePdfPageLoaded: function PDFThumbnailViewer_ensurePdfPageLoaded(thumbView) {
+ if (thumbView.pdfPage) {
+ return Promise.resolve(thumbView.pdfPage);
+ }
+ var pageNumber = thumbView.id;
+ if (this._pagesRequests[pageNumber]) {
+ return this._pagesRequests[pageNumber];
+ }
+ var promise = this.pdfDocument.getPage(pageNumber).then(function (pdfPage) {
+ thumbView.setPdfPage(pdfPage);
+ this._pagesRequests[pageNumber] = null;
+ return pdfPage;
+ }.bind(this));
+ this._pagesRequests[pageNumber] = promise;
+ return promise;
+ },
+ forceRendering: function () {
+ var visibleThumbs = this._getVisibleThumbs();
+ var thumbView = this.renderingQueue.getHighestPriority(visibleThumbs, this.thumbnails, this.scroll.down);
+ if (thumbView) {
+ this._ensurePdfPageLoaded(thumbView).then(function () {
+ this.renderingQueue.renderView(thumbView);
+ }.bind(this));
+ return true;
+ }
+ return false;
+ }
+ };
+ return PDFThumbnailViewer;
+ }();
+ exports.PDFThumbnailViewer = PDFThumbnailViewer;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebTextLayerBuilder = {}, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
+ }(this, function (exports, domEvents, pdfjsLib) {
+ var EXPAND_DIVS_TIMEOUT = 300;
+ // ms
+ /**
+ * @typedef {Object} TextLayerBuilderOptions
+ * @property {HTMLDivElement} textLayerDiv - The text layer container.
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {number} pageIndex - The page index.
+ * @property {PageViewport} viewport - The viewport of the text layer.
+ * @property {PDFFindController} findController
+ * @property {boolean} enhanceTextSelection - Option to turn on improved
+ * text selection.
+ */
+ /**
+ * TextLayerBuilder provides text-selection functionality for the PDF.
+ * It does this by creating overlay divs over the PDF text. These divs
+ * contain text that matches the PDF text they are overlaying. This object
+ * also provides a way to highlight text that is being searched for.
+ * @class
+ */
+ 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 = {
+ /**
+ * @private
+ */
+ _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
+ });
+ },
+ /**
+ * Renders the text layer.
+ * @param {number} timeout (optional) if specified, the rendering waits
+ * for specified amount of ms.
+ */
+ 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) {
+ });
+ },
+ /**
+ * Cancels rendering of the text layer.
+ */
+ 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++) {
+ // Calculate the start position.
+ var matchIdx = matches[m];
+ // Loop over the divIdxs.
+ 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
+ }
+ };
+ // Calculate the end position.
+ if (matchesLength) {
+ // multiterm search
+ matchIdx += matchesLength[m];
+ } else {
+ // phrase search
+ matchIdx += queryLen;
+ }
+ // Somewhat the same array as above, but use > instead of >= to get
+ // the end position right.
+ 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) {
+ // Early exit if there is nothing to render.
+ 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) {
+ // Not highlighting all and this isn't the selected page, so do nothing.
+ 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);
+ }
+ // Match inside new div.
+ if (!prevEnd || begin.divIdx !== prevEnd.divIdx) {
+ // If there was a previous div, then add the text at the end.
+ if (prevEnd !== null) {
+ appendTextToDiv(prevEnd.divIdx, prevEnd.offset, infinity.offset);
+ }
+ // Clear the divs and set the content until the starting point.
+ 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() {
+ // Only show matches when all rendering is done.
+ if (!this.renderingDone) {
+ return;
+ }
+ // Clear all matches.
+ var matches = this.matches;
+ var textDivs = this.textDivs;
+ var bidiTexts = this.textContent.items;
+ var clearedUntilDivIdx = -1;
+ // Clear all current matches.
+ 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;
+ }
+ // Convert the matches on the page controller into the match format
+ // used for the textLayer.
+ 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);
+ },
+ /**
+ * Fixes text selection: adds additional div where mouse was clicked.
+ * This reduces flickering of the content if mouse slowly dragged down/up.
+ * @private
+ */
+ _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);
+ return;
+ }
+ var end = div.querySelector('.endOfContent');
+ if (!end) {
+ return;
+ }
+ end.classList.add('active');
+ });
+ div.addEventListener('mouseup', function (e) {
+ if (self.enhanceTextSelection && self.textLayerRenderTask) {
+ self.textLayerRenderTask.expandTextDivs(false);
+ return;
+ }
+ var end = div.querySelector('.endOfContent');
+ if (!end) {
+ return;
+ }
+ end.classList.remove('active');
+ });
+ }
+ };
+ return TextLayerBuilder;
+ }();
+ /**
+ * @constructor
+ * @implements IPDFTextLayerFactory
+ */
+ function DefaultTextLayerFactory() {
+ }
+ DefaultTextLayerFactory.prototype = {
+ /**
+ * @param {HTMLDivElement} textLayerDiv
+ * @param {number} pageIndex
+ * @param {PageViewport} viewport
+ * @param {boolean} enhanceTextSelection
+ * @returns {TextLayerBuilder}
+ */
+ createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport, enhanceTextSelection) {
+ return new TextLayerBuilder({
+ textLayerDiv: textLayerDiv,
+ pageIndex: pageIndex,
+ viewport: viewport,
+ enhanceTextSelection: enhanceTextSelection
+ });
+ }
+ };
+ exports.TextLayerBuilder = TextLayerBuilder;
+ exports.DefaultTextLayerFactory = DefaultTextLayerFactory;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebAnnotationLayerBuilder = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFLinkService, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtils, pdfLinkService, pdfjsLib) {
+ var mozL10n = uiUtils.mozL10n;
+ var SimpleLinkService = pdfLinkService.SimpleLinkService;
+ /**
+ * @typedef {Object} AnnotationLayerBuilderOptions
+ * @property {HTMLDivElement} pageDiv
+ * @property {PDFPage} pdfPage
+ * @property {boolean} renderInteractiveForms
+ * @property {IPDFLinkService} linkService
+ * @property {DownloadManager} downloadManager
+ */
+ /**
+ * @class
+ */
+ var AnnotationLayerBuilder = function AnnotationLayerBuilderClosure() {
+ /**
+ * @param {AnnotationLayerBuilderOptions} options
+ * @constructs AnnotationLayerBuilder
+ */
+ 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 = /** @lends AnnotationLayerBuilder.prototype */
+ {
+ /**
+ * @param {PageViewport} viewport
+ * @param {string} intent (default value is 'display')
+ */
+ 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) {
+ // If an annotationLayer already exists, refresh its children's
+ // transformation matrices.
+ pdfjsLib.AnnotationLayer.update(parameters);
+ } else {
+ // Create an annotation layer div and render the annotations
+ // if there is at least one annotation.
+ 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;
+ }();
+ /**
+ * @constructor
+ * @implements IPDFAnnotationLayerFactory
+ */
+ function DefaultAnnotationLayerFactory() {
+ }
+ DefaultAnnotationLayerFactory.prototype = {
+ /**
+ * @param {HTMLDivElement} pageDiv
+ * @param {PDFPage} pdfPage
+ * @param {boolean} renderInteractiveForms
+ * @returns {AnnotationLayerBuilder}
+ */
+ createAnnotationLayerBuilder: function (pageDiv, pdfPage, renderInteractiveForms) {
+ return new AnnotationLayerBuilder({
+ pageDiv: pageDiv,
+ pdfPage: pdfPage,
+ renderInteractiveForms: renderInteractiveForms,
+ linkService: new SimpleLinkService()
+ });
+ }
+ };
+ exports.AnnotationLayerBuilder = AnnotationLayerBuilder;
+ exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebPDFViewer = {}, root.pdfjsWebUIUtils, root.pdfjsWebPDFPageView, root.pdfjsWebPDFRenderingQueue, root.pdfjsWebTextLayerBuilder, root.pdfjsWebAnnotationLayerBuilder, root.pdfjsWebPDFLinkService, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtils, pdfPageView, pdfRenderingQueue, textLayerBuilder, annotationLayerBuilder, pdfLinkService, domEvents, pdfjsLib) {
+ 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 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;
+ /**
+ * @typedef {Object} PDFViewerOptions
+ * @property {HTMLDivElement} container - The container for the viewer element.
+ * @property {HTMLDivElement} viewer - (optional) The viewer element.
+ * @property {EventBus} eventBus - The application event bus.
+ * @property {IPDFLinkService} linkService - The navigation/linking service.
+ * @property {DownloadManager} downloadManager - (optional) The download
+ * manager component.
+ * @property {PDFRenderingQueue} renderingQueue - (optional) The rendering
+ * queue object.
+ * @property {boolean} removePageBorders - (optional) Removes the border shadow
+ * around the pages. The default is false.
+ * @property {boolean} enhanceTextSelection - (optional) Enables the improved
+ * text selection behaviour. The default is `false`.
+ * @property {boolean} renderInteractiveForms - (optional) Enables rendering of
+ * interactive form elements. The default is `false`.
+ */
+ /**
+ * Simple viewer control to display PDF content/pages.
+ * @class
+ * @implements {IRenderableView}
+ */
+ 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) {
+ // Prevent unnecessary re-rendering of all pages when the scale
+ // changes only because of limited numerical precision.
+ return true;
+ }
+ return false;
+ }
+ /**
+ * @constructs PDFViewer
+ * @param {PDFViewerOptions} options
+ */
+ 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.defaultRenderingQueue = !options.renderingQueue;
+ if (this.defaultRenderingQueue) {
+ // Custom rendering queue is not specified, using default one
+ 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 = /** @lends PDFViewer.prototype */
+ {
+ get pagesCount() {
+ return this._pages.length;
+ },
+ getPageView: function (index) {
+ return this._pages[index];
+ },
+ /**
+ * @returns {boolean} true if all {PDFPageView} objects are initialized.
+ */
+ get pageViewsReady() {
+ return this._pageViewsReady;
+ },
+ /**
+ * @returns {number}
+ */
+ get currentPageNumber() {
+ return this._currentPageNumber;
+ },
+ /**
+ * @param {number} val - The page number.
+ */
+ set currentPageNumber(val) {
+ if ((val | 0) !== val) {
+ // Ensure that `val` is an integer.
+ throw new Error('Invalid page number.');
+ }
+ if (!this.pdfDocument) {
+ this._currentPageNumber = val;
+ return;
+ }
+ // The intent can be to just reset a scroll position and/or scale.
+ this._setCurrentPageNumber(val, /* resetCurrentPageView = */
+ true);
+ },
+ /**
+ * @private
+ */
+ _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();
+ }
+ },
+ /**
+ * @returns {string|null} Returns the current page label,
+ * or `null` if no page labels exist.
+ */
+ get currentPageLabel() {
+ return this._pageLabels && this._pageLabels[this._currentPageNumber - 1];
+ },
+ /**
+ * @param {string} val - The page label.
+ */
+ set currentPageLabel(val) {
+ var pageNumber = val | 0;
+ // Fallback page number.
+ if (this._pageLabels) {
+ var i = this._pageLabels.indexOf(val);
+ if (i >= 0) {
+ pageNumber = i + 1;
+ }
+ }
+ this.currentPageNumber = pageNumber;
+ },
+ /**
+ * @returns {number}
+ */
+ get currentScale() {
+ return this._currentScale !== UNKNOWN_SCALE ? this._currentScale : DEFAULT_SCALE;
+ },
+ /**
+ * @param {number} val - Scale of the pages in percents.
+ */
+ 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);
+ },
+ /**
+ * @returns {string}
+ */
+ get currentScaleValue() {
+ return this._currentScaleValue;
+ },
+ /**
+ * @param val - The scale of the pages (in percent or predefined value).
+ */
+ set currentScaleValue(val) {
+ if (!this.pdfDocument) {
+ this._currentScale = isNaN(val) ? UNKNOWN_SCALE : val;
+ this._currentScaleValue = val.toString();
+ return;
+ }
+ this._setScale(val, false);
+ },
+ /**
+ * @returns {number}
+ */
+ get pagesRotation() {
+ return this._pagesRotation;
+ },
+ /**
+ * @param {number} rotation - The rotation of the pages (0, 90, 180, 270).
+ */
+ 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();
+ }
+ },
+ /**
+ * @param pdfDocument {PDFDocument}
+ */
+ 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() {
+ // Add the page to the buffer at the start of drawing. That way it can
+ // be evicted from the buffer and destroyed even if we pause its
+ // rendering.
+ self._buffer.push(this);
+ };
+ pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
+ if (!isOnePageRenderedResolved) {
+ isOnePageRenderedResolved = true;
+ resolveOnePageRendered();
+ }
+ };
+ };
+ var firstPagePromise = pdfDocument.getPage(1);
+ this.firstPagePromise = firstPagePromise;
+ // Fetch a single page so we can get a viewport that will be the default
+ // viewport for all pages
+ 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
+ });
+ bindOnAfterAndBeforeDraw(pageView);
+ this._pages.push(pageView);
+ }
+ var linkService = this.linkService;
+ // Fetch all the pages since the viewport is needed before printing
+ // starts to create the correct size canvas. Wait until one page is
+ // rendered so we don't tie up too many resources early on.
+ 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 {
+ // XXX: Printing is semi-broken with auto fetch disabled.
+ resolvePagesPromise();
+ }
+ });
+ self.eventBus.dispatch('pagesinit', { source: self });
+ if (this.defaultRenderingQueue) {
+ this.update();
+ }
+ if (this.findController) {
+ this.findController.resolveFirstPage();
+ }
+ }.bind(this));
+ },
+ /**
+ * @param {Array|null} labels
+ */
+ 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;
+ }
+ // Update all the `PDFPageView` instances.
+ 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;
+ // Remove the pages from the DOM.
+ 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;
+ // For pages in landscape mode, fit the page height to the viewer
+ // *unless* the page would thus become too wide to fit horizontally.
+ 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);
+ }
+ },
+ /**
+ * Refreshes page view: scrolls to the current page and updates the scale.
+ * @private
+ */
+ _resetCurrentPageView: function () {
+ if (this.isInPresentationMode) {
+ // Fixes the case when PDF has different page sizes.
+ this._setScale(this._currentScaleValue, true);
+ }
+ var pageView = this._pages[this._currentPageNumber - 1];
+ scrollIntoView(pageView.div);
+ },
+ /**
+ * @typedef ScrollPageIntoViewParameters
+ * @property {number} pageNumber - The page number.
+ * @property {Array} destArray - (optional) The original PDF destination
+ * array, in the format: <page-ref> </XYZ|/FitXXX> <args..>
+ * @property {boolean} allowNegativeOffset - (optional) Allow negative page
+ * offsets. The default value is `false`.
+ */
+ /**
+ * Scrolls page into view.
+ * @param {ScrollPageIntoViewParameters} params
+ */
+ scrollPageIntoView: function PDFViewer_scrollPageIntoView(params) {
+ if (!this.pdfDocument) {
+ return;
+ }
+ var pageNumber = params.pageNumber || 0;
+ var dest = params.destArray || null;
+ var allowNegativeOffset = params.allowNegativeOffset || false;
+ if (this.isInPresentationMode || !dest) {
+ this._setCurrentPageNumber(pageNumber, /* resetCurrentPageView */
+ 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];
+ // If x and/or y coordinates are not supplied, default to
+ // _top_ left of the page (not the obvious bottom left,
+ // since aligning the bottom of the intended page with the
+ // top of the window is rarely helpful).
+ 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';
+ // According to the PDF spec, section 12.3.2.2, a `null` value in the
+ // parameter should maintain the position relative to the new page.
+ 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) {
+ // Some bad PDF generators will create destinations with e.g. top values
+ // that exceeds the page height. Ensure that offsets are not negative,
+ // to prevent a previous page from becoming visible (fixes bug 874482).
+ 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);
+ } else {
+ // The algorithm in getVisibleElements doesn't work in all browsers and
+ // configurations when presentation mode is active.
+ 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();
+ }
+ }
+ },
+ /**
+ * @private
+ */
+ _cancelRendering: function PDFViewer_cancelRendering() {
+ for (var i = 0, ii = this._pages.length; i < ii; i++) {
+ if (this._pages[i]) {
+ this._pages[i].cancelRendering();
+ }
+ }
+ },
+ /**
+ * @param {PDFPageView} pageView
+ * @returns {PDFPage}
+ * @private
+ */
+ _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 });
+ });
+ },
+ /**
+ * @param {HTMLDivElement} textLayerDiv
+ * @param {number} pageIndex
+ * @param {PageViewport} viewport
+ * @returns {TextLayerBuilder}
+ */
+ 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
+ });
+ },
+ /**
+ * @param {HTMLDivElement} pageDiv
+ * @param {PDFPage} pdfPage
+ * @param {boolean} renderInteractiveForms
+ * @returns {AnnotationLayerBuilder}
+ */
+ 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;
+ },
+ /**
+ * Returns sizes of the pages.
+ * @returns {Array} Array of objects with width/height fields.
+ */
+ getPagesOverview: function () {
+ return this._pages.map(function (pageView) {
+ var viewport = pageView.pdfPage.getViewport(1);
+ return {
+ width: viewport.width,
+ height: viewport.height
+ };
+ });
+ }
+ };
+ return PDFViewer;
+ }();
+ exports.PresentationModeState = PresentationModeState;
+ exports.PDFViewer = PDFViewer;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebApp = {}, root.pdfjsWebUIUtils, root.pdfjsWebDownloadManager, root.pdfjsWebPDFHistory, root.pdfjsWebPreferences, root.pdfjsWebPDFSidebar, root.pdfjsWebViewHistory, root.pdfjsWebPDFThumbnailViewer, root.pdfjsWebSecondaryToolbar, root.pdfjsWebPasswordPrompt, root.pdfjsWebPDFPresentationMode, root.pdfjsWebPDFDocumentProperties, root.pdfjsWebHandTool, root.pdfjsWebPDFViewer, root.pdfjsWebPDFRenderingQueue, root.pdfjsWebPDFLinkService, root.pdfjsWebPDFOutlineViewer, root.pdfjsWebOverlayManager, root.pdfjsWebPDFAttachmentViewer, root.pdfjsWebPDFFindController, root.pdfjsWebPDFFindBar, root.pdfjsWebDOMEvents, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtilsLib, downloadManagerLib, pdfHistoryLib, preferencesLib, pdfSidebarLib, viewHistoryLib, pdfThumbnailViewerLib, secondaryToolbarLib, passwordPromptLib, pdfPresentationModeLib, pdfDocumentPropertiesLib, handToolLib, pdfViewerLib, pdfRenderingQueueLib, pdfLinkServiceLib, pdfOutlineViewerLib, overlayManagerLib, pdfAttachmentViewerLib, pdfFindControllerLib, pdfFindBarLib, domEventsLib, pdfjsLib) {
+ var UNKNOWN_SCALE = uiUtilsLib.UNKNOWN_SCALE;
+ var DEFAULT_SCALE_VALUE = uiUtilsLib.DEFAULT_SCALE_VALUE;
+ var ProgressBar = uiUtilsLib.ProgressBar;
+ var getPDFFileNameFromURL = uiUtilsLib.getPDFFileNameFromURL;
+ var noContextMenuHandler = uiUtilsLib.noContextMenuHandler;
+ var mozL10n = uiUtilsLib.mozL10n;
+ var parseQueryString = uiUtilsLib.parseQueryString;
+ var PDFHistory = pdfHistoryLib.PDFHistory;
+ var Preferences = preferencesLib.Preferences;
+ var SidebarView = pdfSidebarLib.SidebarView;
+ var PDFSidebar = pdfSidebarLib.PDFSidebar;
+ var ViewHistory = viewHistoryLib.ViewHistory;
+ var PDFThumbnailViewer = pdfThumbnailViewerLib.PDFThumbnailViewer;
+ var SecondaryToolbar = secondaryToolbarLib.SecondaryToolbar;
+ var PasswordPrompt = passwordPromptLib.PasswordPrompt;
+ var PDFPresentationMode = pdfPresentationModeLib.PDFPresentationMode;
+ var PDFDocumentProperties = pdfDocumentPropertiesLib.PDFDocumentProperties;
+ var HandTool = handToolLib.HandTool;
+ var PresentationModeState = pdfViewerLib.PresentationModeState;
+ var PDFViewer = pdfViewerLib.PDFViewer;
+ var RenderingStates = pdfRenderingQueueLib.RenderingStates;
+ var PDFRenderingQueue = pdfRenderingQueueLib.PDFRenderingQueue;
+ var PDFLinkService = pdfLinkServiceLib.PDFLinkService;
+ var PDFOutlineViewer = pdfOutlineViewerLib.PDFOutlineViewer;
+ var OverlayManager = overlayManagerLib.OverlayManager;
+ var PDFAttachmentViewer = pdfAttachmentViewerLib.PDFAttachmentViewer;
+ var PDFFindController = pdfFindControllerLib.PDFFindController;
+ var PDFFindBar = pdfFindBarLib.PDFFindBar;
+ var getGlobalEventBus = domEventsLib.getGlobalEventBus;
+ var normalizeWheelEventDelta = uiUtilsLib.normalizeWheelEventDelta;
+ var DEFAULT_SCALE_DELTA = 1.1;
+ var MIN_SCALE = 0.25;
+ var MAX_SCALE = 10.0;
+ var SCALE_SELECT_CONTAINER_PADDING = 8;
+ var SCALE_SELECT_PADDING = 22;
+ var PAGE_NUMBER_LOADING_INDICATOR = 'visiblePageIsLoading';
+ var DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT = 5000;
+ function configure(PDFJS) {
+ PDFJS.imageResourcesPath = './images/';
+ PDFJS.workerSrc = '../build/pdf.worker.js';
+ PDFJS.cMapUrl = '../web/cmaps/';
+ PDFJS.cMapPacked = true;
+ }
+ var DefaultExernalServices = {
+ updateFindControlState: function (data) {
+ },
+ initPassiveLoading: function (callbacks) {
+ },
+ fallback: function (data, callback) {
+ },
+ reportTelemetry: function (data) {
+ },
+ createDownloadManager: function () {
+ return new downloadManagerLib.DownloadManager();
+ },
+ supportsIntegratedFind: false,
+ supportsDocumentFonts: true,
+ supportsDocumentColors: true,
+ supportedMouseWheelZoomModifierKeys: {
+ ctrlKey: true,
+ metaKey: true
+ }
+ };
+ var PDFViewerApplication = {
+ initialBookmark: document.location.hash.substring(1),
+ initialDestination: null,
+ initialized: false,
+ fellback: false,
+ appConfig: null,
+ pdfDocument: null,
+ pdfLoadingTask: null,
+ printService: null,
+ /** @type {PDFViewer} */
+ pdfViewer: null,
+ /** @type {PDFThumbnailViewer} */
+ pdfThumbnailViewer: null,
+ /** @type {PDFRenderingQueue} */
+ pdfRenderingQueue: null,
+ /** @type {PDFPresentationMode} */
+ pdfPresentationMode: null,
+ /** @type {PDFDocumentProperties} */
+ pdfDocumentProperties: null,
+ /** @type {PDFLinkService} */
+ pdfLinkService: null,
+ /** @type {PDFHistory} */
+ pdfHistory: null,
+ /** @type {PDFSidebar} */
+ pdfSidebar: null,
+ /** @type {PDFOutlineViewer} */
+ pdfOutlineViewer: null,
+ /** @type {PDFAttachmentViewer} */
+ pdfAttachmentViewer: null,
+ /** @type {ViewHistory} */
+ store: null,
+ /** @type {DownloadManager} */
+ downloadManager: null,
+ /** @type {EventBus} */
+ eventBus: null,
+ pageRotation: 0,
+ isInitialViewSet: false,
+ animationStartedPromise: null,
+ preferenceSidebarViewOnLoad: SidebarView.NONE,
+ preferencePdfBugEnabled: false,
+ preferenceShowPreviousViewOnLoad: true,
+ preferenceDefaultZoomValue: '',
+ preferenceDisablePageLabels: false,
+ isViewerEmbedded: window.parent !== window,
+ url: '',
+ baseUrl: '',
+ externalServices: DefaultExernalServices,
+ hasPageLabels: false,
+ // called once when the document is loaded
+ initialize: function pdfViewInitialize(appConfig) {
+ configure(pdfjsLib.PDFJS);
+ this.appConfig = appConfig;
+ var eventBus = appConfig.eventBus || getGlobalEventBus();
+ this.eventBus = eventBus;
+ this.bindEvents();
+ var pdfRenderingQueue = new PDFRenderingQueue();
+ pdfRenderingQueue.onIdle = this.cleanup.bind(this);
+ this.pdfRenderingQueue = pdfRenderingQueue;
+ var pdfLinkService = new PDFLinkService({ eventBus: eventBus });
+ this.pdfLinkService = pdfLinkService;
+ var downloadManager = this.externalServices.createDownloadManager();
+ this.downloadManager = downloadManager;
+ var container = appConfig.mainContainer;
+ var viewer = appConfig.viewerContainer;
+ this.pdfViewer = new PDFViewer({
+ container: container,
+ viewer: viewer,
+ eventBus: eventBus,
+ renderingQueue: pdfRenderingQueue,
+ linkService: pdfLinkService,
+ downloadManager: downloadManager,
+ enhanceTextSelection: false,
+ renderInteractiveForms: false
+ });
+ pdfRenderingQueue.setViewer(this.pdfViewer);
+ pdfLinkService.setViewer(this.pdfViewer);
+ var thumbnailContainer = appConfig.sidebar.thumbnailView;
+ this.pdfThumbnailViewer = new PDFThumbnailViewer({
+ container: thumbnailContainer,
+ renderingQueue: pdfRenderingQueue,
+ linkService: pdfLinkService
+ });
+ pdfRenderingQueue.setThumbnailViewer(this.pdfThumbnailViewer);
+ Preferences.initialize();
+ this.preferences = Preferences;
+ this.pdfHistory = new PDFHistory({
+ linkService: pdfLinkService,
+ eventBus: this.eventBus
+ });
+ pdfLinkService.setHistory(this.pdfHistory);
+ this.findController = new PDFFindController({ pdfViewer: this.pdfViewer });
+ this.findController.onUpdateResultsCount = function (matchCount) {
+ if (this.supportsIntegratedFind) {
+ return;
+ }
+ this.findBar.updateResultsCount(matchCount);
+ }.bind(this);
+ this.findController.onUpdateState = function (state, previous, matchCount) {
+ if (this.supportsIntegratedFind) {
+ this.externalServices.updateFindControlState({
+ result: state,
+ findPrevious: previous
+ });
+ } else {
+ this.findBar.updateUIState(state, previous, matchCount);
+ }
+ }.bind(this);
+ this.pdfViewer.setFindController(this.findController);
+ // FIXME better PDFFindBar constructor parameters
+ var findBarConfig = Object.create(appConfig.findBar);
+ findBarConfig.findController = this.findController;
+ findBarConfig.eventBus = this.eventBus;
+ this.findBar = new PDFFindBar(findBarConfig);
+ this.overlayManager = OverlayManager;
+ this.handTool = new HandTool({
+ container: container,
+ eventBus: this.eventBus
+ });
+ this.pdfDocumentProperties = new PDFDocumentProperties(appConfig.documentProperties);
+ this.secondaryToolbar = new SecondaryToolbar(appConfig.secondaryToolbar, container, eventBus);
+ if (this.supportsFullscreen) {
+ this.pdfPresentationMode = new PDFPresentationMode({
+ container: container,
+ viewer: viewer,
+ pdfViewer: this.pdfViewer,
+ eventBus: this.eventBus,
+ contextMenuItems: appConfig.fullscreen
+ });
+ }
+ this.passwordPrompt = new PasswordPrompt(appConfig.passwordOverlay);
+ this.pdfOutlineViewer = new PDFOutlineViewer({
+ container: appConfig.sidebar.outlineView,
+ eventBus: this.eventBus,
+ linkService: pdfLinkService
+ });
+ this.pdfAttachmentViewer = new PDFAttachmentViewer({
+ container: appConfig.sidebar.attachmentsView,
+ eventBus: this.eventBus,
+ downloadManager: downloadManager
+ });
+ // FIXME better PDFSidebar constructor parameters
+ var sidebarConfig = Object.create(appConfig.sidebar);
+ sidebarConfig.pdfViewer = this.pdfViewer;
+ sidebarConfig.pdfThumbnailViewer = this.pdfThumbnailViewer;
+ sidebarConfig.pdfOutlineViewer = this.pdfOutlineViewer;
+ sidebarConfig.eventBus = this.eventBus;
+ this.pdfSidebar = new PDFSidebar(sidebarConfig);
+ this.pdfSidebar.onToggled = this.forceRendering.bind(this);
+ var self = this;
+ var PDFJS = pdfjsLib.PDFJS;
+ var initializedPromise = Promise.all([
+ Preferences.get('enableWebGL').then(function resolved(value) {
+ PDFJS.disableWebGL = !value;
+ }),
+ Preferences.get('sidebarViewOnLoad').then(function resolved(value) {
+ self.preferenceSidebarViewOnLoad = value;
+ }),
+ Preferences.get('pdfBugEnabled').then(function resolved(value) {
+ self.preferencePdfBugEnabled = value;
+ }),
+ Preferences.get('showPreviousViewOnLoad').then(function resolved(value) {
+ self.preferenceShowPreviousViewOnLoad = value;
+ }),
+ Preferences.get('defaultZoomValue').then(function resolved(value) {
+ self.preferenceDefaultZoomValue = value;
+ }),
+ Preferences.get('enhanceTextSelection').then(function resolved(value) {
+ // TODO: Move the initialization and fetching of `Preferences` to occur
+ // before the various viewer components are initialized.
+ //
+ // This was attempted in: https://github.com/mozilla/pdf.js/pull/7586,
+ // but it had to be backed out since it violated implicit assumptions
+ // about some viewer components being synchronously available.
+ //
+ // NOTE: This hack works since the `enhanceTextSelection` option is not
+ // needed until `PDFViewer.setDocument` has been called.
+ self.pdfViewer.enhanceTextSelection = value;
+ }),
+ Preferences.get('disableTextLayer').then(function resolved(value) {
+ if (PDFJS.disableTextLayer === true) {
+ return;
+ }
+ PDFJS.disableTextLayer = value;
+ }),
+ Preferences.get('disableRange').then(function resolved(value) {
+ if (PDFJS.disableRange === true) {
+ return;
+ }
+ PDFJS.disableRange = value;
+ }),
+ Preferences.get('disableStream').then(function resolved(value) {
+ if (PDFJS.disableStream === true) {
+ return;
+ }
+ PDFJS.disableStream = value;
+ }),
+ Preferences.get('disableAutoFetch').then(function resolved(value) {
+ PDFJS.disableAutoFetch = value;
+ }),
+ Preferences.get('disableFontFace').then(function resolved(value) {
+ if (PDFJS.disableFontFace === true) {
+ return;
+ }
+ PDFJS.disableFontFace = value;
+ }),
+ Preferences.get('useOnlyCssZoom').then(function resolved(value) {
+ PDFJS.useOnlyCssZoom = value;
+ }),
+ Preferences.get('externalLinkTarget').then(function resolved(value) {
+ if (PDFJS.isExternalLinkTargetSet()) {
+ return;
+ }
+ PDFJS.externalLinkTarget = value;
+ }),
+ Preferences.get('renderInteractiveForms').then(function resolved(value) {
+ // TODO: Like the `enhanceTextSelection` preference, move the
+ // initialization and fetching of `Preferences` to occur
+ // before the various viewer components are initialized.
+ self.pdfViewer.renderInteractiveForms = value;
+ }),
+ Preferences.get('disablePageLabels').then(function resolved(value) {
+ self.preferenceDisablePageLabels = value;
+ })
+ ]).catch(function (reason) {
+ });
+ return initializedPromise.then(function () {
+ if (self.isViewerEmbedded && !PDFJS.isExternalLinkTargetSet()) {
+ // Prevent external links from "replacing" the viewer,
+ // when it's embedded in e.g. an iframe or an object.
+ PDFJS.externalLinkTarget = PDFJS.LinkTarget.TOP;
+ }
+ self.initialized = true;
+ });
+ },
+ run: function pdfViewRun(config) {
+ this.initialize(config).then(webViewerInitialized);
+ },
+ zoomIn: function pdfViewZoomIn(ticks) {
+ var newScale = this.pdfViewer.currentScale;
+ do {
+ newScale = (newScale * DEFAULT_SCALE_DELTA).toFixed(2);
+ newScale = Math.ceil(newScale * 10) / 10;
+ newScale = Math.min(MAX_SCALE, newScale);
+ } while (--ticks > 0 && newScale < MAX_SCALE);
+ this.pdfViewer.currentScaleValue = newScale;
+ },
+ zoomOut: function pdfViewZoomOut(ticks) {
+ var newScale = this.pdfViewer.currentScale;
+ do {
+ newScale = (newScale / DEFAULT_SCALE_DELTA).toFixed(2);
+ newScale = Math.floor(newScale * 10) / 10;
+ newScale = Math.max(MIN_SCALE, newScale);
+ } while (--ticks > 0 && newScale > MIN_SCALE);
+ this.pdfViewer.currentScaleValue = newScale;
+ },
+ get pagesCount() {
+ return this.pdfDocument ? this.pdfDocument.numPages : 0;
+ },
+ set page(val) {
+ this.pdfViewer.currentPageNumber = val;
+ },
+ get page() {
+ return this.pdfViewer.currentPageNumber;
+ },
+ get printing() {
+ return !!this.printService;
+ },
+ get supportsPrinting() {
+ return PDFPrintServiceFactory.instance.supportsPrinting;
+ },
+ get supportsFullscreen() {
+ var support;
+ support = document.fullscreenEnabled === true || document.mozFullScreenEnabled === true;
+ if (support && pdfjsLib.PDFJS.disableFullscreen === true) {
+ support = false;
+ }
+ return pdfjsLib.shadow(this, 'supportsFullscreen', support);
+ },
+ get supportsIntegratedFind() {
+ return this.externalServices.supportsIntegratedFind;
+ },
+ get supportsDocumentFonts() {
+ return this.externalServices.supportsDocumentFonts;
+ },
+ get supportsDocumentColors() {
+ return this.externalServices.supportsDocumentColors;
+ },
+ get loadingBar() {
+ var bar = new ProgressBar('#loadingBar', {});
+ return pdfjsLib.shadow(this, 'loadingBar', bar);
+ },
+ get supportedMouseWheelZoomModifierKeys() {
+ return this.externalServices.supportedMouseWheelZoomModifierKeys;
+ },
+ initPassiveLoading: function pdfViewInitPassiveLoading() {
+ this.externalServices.initPassiveLoading({
+ onOpenWithTransport: function (url, length, transport) {
+ PDFViewerApplication.open(url, { range: transport });
+ if (length) {
+ PDFViewerApplication.pdfDocumentProperties.setFileSize(length);
+ }
+ },
+ onOpenWithData: function (data) {
+ PDFViewerApplication.open(data);
+ },
+ onOpenWithURL: function (url, length, originalURL) {
+ var file = url, args = null;
+ if (length !== undefined) {
+ args = { length: length };
+ }
+ if (originalURL !== undefined) {
+ file = {
+ file: url,
+ originalURL: originalURL
+ };
+ }
+ PDFViewerApplication.open(file, args);
+ },
+ onError: function (e) {
+ PDFViewerApplication.error(mozL10n.get('loading_error', null, 'An error occurred while loading the PDF.'), e);
+ },
+ onProgress: function (loaded, total) {
+ PDFViewerApplication.progress(loaded / total);
+ }
+ });
+ },
+ setTitleUsingUrl: function pdfViewSetTitleUsingUrl(url) {
+ this.url = url;
+ this.baseUrl = url.split('#')[0];
+ try {
+ this.setTitle(decodeURIComponent(pdfjsLib.getFilenameFromUrl(url)) || url);
+ } catch (e) {
+ // decodeURIComponent may throw URIError,
+ // fall back to using the unprocessed url in that case
+ this.setTitle(url);
+ }
+ },
+ setTitle: function pdfViewSetTitle(title) {
+ if (this.isViewerEmbedded) {
+ // Embedded PDF viewers should not be changing their parent page's title.
+ return;
+ }
+ document.title = title;
+ },
+ /**
+ * Closes opened PDF document.
+ * @returns {Promise} - Returns the promise, which is resolved when all
+ * destruction is completed.
+ */
+ close: function pdfViewClose() {
+ var errorWrapper = this.appConfig.errorWrapper.container;
+ errorWrapper.setAttribute('hidden', 'true');
+ if (!this.pdfLoadingTask) {
+ return Promise.resolve();
+ }
+ var promise = this.pdfLoadingTask.destroy();
+ this.pdfLoadingTask = null;
+ if (this.pdfDocument) {
+ this.pdfDocument = null;
+ this.pdfThumbnailViewer.setDocument(null);
+ this.pdfViewer.setDocument(null);
+ this.pdfLinkService.setDocument(null, null);
+ }
+ this.store = null;
+ this.isInitialViewSet = false;
+ this.hasPageLabels = false;
+ this.pdfSidebar.reset();
+ this.pdfOutlineViewer.reset();
+ this.pdfAttachmentViewer.reset();
+ this.findController.reset();
+ this.findBar.reset();
+ if (typeof PDFBug !== 'undefined') {
+ PDFBug.cleanup();
+ }
+ return promise;
+ },
+ /**
+ * Opens PDF document specified by URL or array with additional arguments.
+ * @param {string|TypedArray|ArrayBuffer} file - PDF location or binary data.
+ * @param {Object} args - (optional) Additional arguments for the getDocument
+ * call, e.g. HTTP headers ('httpHeaders') or
+ * alternative data transport ('range').
+ * @returns {Promise} - Returns the promise, which is resolved when document
+ * is opened.
+ */
+ open: function pdfViewOpen(file, args) {
+ if (this.pdfLoadingTask) {
+ // We need to destroy already opened document.
+ return this.close().then(function () {
+ // Reload the preferences if a document was previously opened.
+ Preferences.reload();
+ // ... and repeat the open() call.
+ return this.open(file, args);
+ }.bind(this));
+ }
+ var parameters = Object.create(null), scale;
+ if (typeof file === 'string') {
+ // URL
+ this.setTitleUsingUrl(file);
+ parameters.url = file;
+ } else if (file && 'byteLength' in file) {
+ // ArrayBuffer
+ parameters.data = file;
+ } else if (file.url && file.originalUrl) {
+ this.setTitleUsingUrl(file.originalUrl);
+ parameters.url = file.url;
+ }
+ parameters.docBaseUrl = this.baseUrl;
+ if (args) {
+ for (var prop in args) {
+ parameters[prop] = args[prop];
+ }
+ if (args.scale) {
+ scale = args.scale;
+ }
+ if (args.length) {
+ this.pdfDocumentProperties.setFileSize(args.length);
+ }
+ }
+ var self = this;
+ self.downloadComplete = false;
+ var loadingTask = pdfjsLib.getDocument(parameters);
+ this.pdfLoadingTask = loadingTask;
+ loadingTask.onPassword = function passwordNeeded(updateCallback, reason) {
+ self.passwordPrompt.setUpdateCallback(updateCallback, reason);
+ self.passwordPrompt.open();
+ };
+ loadingTask.onProgress = function getDocumentProgress(progressData) {
+ self.progress(progressData.loaded / progressData.total);
+ };
+ // Listen for unsupported features to trigger the fallback UI.
+ loadingTask.onUnsupportedFeature = this.fallback.bind(this);
+ return loadingTask.promise.then(function getDocumentCallback(pdfDocument) {
+ self.load(pdfDocument, scale);
+ }, function getDocumentError(exception) {
+ var message = exception && exception.message;
+ var loadingErrorMessage = mozL10n.get('loading_error', null, 'An error occurred while loading the PDF.');
+ if (exception instanceof pdfjsLib.InvalidPDFException) {
+ // change error message also for other builds
+ loadingErrorMessage = mozL10n.get('invalid_file_error', null, 'Invalid or corrupted PDF file.');
+ } else if (exception instanceof pdfjsLib.MissingPDFException) {
+ // special message for missing PDF's
+ loadingErrorMessage = mozL10n.get('missing_file_error', null, 'Missing PDF file.');
+ } else if (exception instanceof pdfjsLib.UnexpectedResponseException) {
+ loadingErrorMessage = mozL10n.get('unexpected_response_error', null, 'Unexpected server response.');
+ }
+ var moreInfo = { message: message };
+ self.error(loadingErrorMessage, moreInfo);
+ throw new Error(loadingErrorMessage);
+ });
+ },
+ download: function pdfViewDownload() {
+ function downloadByUrl() {
+ downloadManager.downloadUrl(url, filename);
+ }
+ var url = this.baseUrl;
+ var filename = getPDFFileNameFromURL(url);
+ var downloadManager = this.downloadManager;
+ downloadManager.onerror = function (err) {
+ // This error won't really be helpful because it's likely the
+ // fallback won't work either (or is already open).
+ PDFViewerApplication.error('PDF failed to download.');
+ };
+ if (!this.pdfDocument) {
+ // the PDF is not ready yet
+ downloadByUrl();
+ return;
+ }
+ if (!this.downloadComplete) {
+ // the PDF is still downloading
+ downloadByUrl();
+ return;
+ }
+ this.pdfDocument.getData().then(function getDataSuccess(data) {
+ var blob = pdfjsLib.createBlob(data, 'application/pdf');
+ downloadManager.download(blob, url, filename);
+ }, downloadByUrl).then(null, downloadByUrl);
+ },
+ fallback: function pdfViewFallback(featureId) {
+ // Only trigger the fallback once so we don't spam the user with messages
+ // for one PDF.
+ if (this.fellback) {
+ return;
+ }
+ this.fellback = true;
+ this.externalServices.fallback({
+ featureId: featureId,
+ url: this.baseUrl
+ }, function response(download) {
+ if (!download) {
+ return;
+ }
+ PDFViewerApplication.download();
+ });
+ },
+ /**
+ * Show the error box.
+ * @param {String} message A message that is human readable.
+ * @param {Object} moreInfo (optional) Further information about the error
+ * that is more technical. Should have a 'message'
+ * and optionally a 'stack' property.
+ */
+ error: function pdfViewError(message, moreInfo) {
+ var moreInfoText = mozL10n.get('error_version_info', {
+ version: pdfjsLib.version || '?',
+ build: pdfjsLib.build || '?'
+ }, 'PDF.js v{{version}} (build: {{build}})') + '\n';
+ if (moreInfo) {
+ moreInfoText += mozL10n.get('error_message', { message: moreInfo.message }, 'Message: {{message}}');
+ if (moreInfo.stack) {
+ moreInfoText += '\n' + mozL10n.get('error_stack', { stack: moreInfo.stack }, 'Stack: {{stack}}');
+ } else {
+ if (moreInfo.filename) {
+ moreInfoText += '\n' + mozL10n.get('error_file', { file: moreInfo.filename }, 'File: {{file}}');
+ }
+ if (moreInfo.lineNumber) {
+ moreInfoText += '\n' + mozL10n.get('error_line', { line: moreInfo.lineNumber }, 'Line: {{line}}');
+ }
+ }
+ }
+ console.error(message + '\n' + moreInfoText);
+ this.fallback();
+ },
+ progress: function pdfViewProgress(level) {
+ var percent = Math.round(level * 100);
+ // When we transition from full request to range requests, it's possible
+ // that we discard some of the loaded data. This can cause the loading
+ // bar to move backwards. So prevent this by only updating the bar if it
+ // increases.
+ if (percent > this.loadingBar.percent || isNaN(percent)) {
+ this.loadingBar.percent = percent;
+ // When disableAutoFetch is enabled, it's not uncommon for the entire file
+ // to never be fetched (depends on e.g. the file structure). In this case
+ // the loading bar will not be completely filled, nor will it be hidden.
+ // To prevent displaying a partially filled loading bar permanently, we
+ // hide it when no data has been loaded during a certain amount of time.
+ if (pdfjsLib.PDFJS.disableAutoFetch && percent) {
+ if (this.disableAutoFetchLoadingBarTimeout) {
+ clearTimeout(this.disableAutoFetchLoadingBarTimeout);
+ this.disableAutoFetchLoadingBarTimeout = null;
+ }
+ this.loadingBar.show();
+ this.disableAutoFetchLoadingBarTimeout = setTimeout(function () {
+ this.loadingBar.hide();
+ this.disableAutoFetchLoadingBarTimeout = null;
+ }.bind(this), DISABLE_AUTO_FETCH_LOADING_BAR_TIMEOUT);
+ }
+ }
+ },
+ load: function pdfViewLoad(pdfDocument, scale) {
+ var self = this;
+ scale = scale || UNKNOWN_SCALE;
+ this.pdfDocument = pdfDocument;
+ this.pdfDocumentProperties.setDocumentAndUrl(pdfDocument, this.url);
+ var downloadedPromise = pdfDocument.getDownloadInfo().then(function () {
+ self.downloadComplete = true;
+ self.loadingBar.hide();
+ });
+ this._updateUIToolbar({ resetNumPages: true });
+ var id = this.documentFingerprint = pdfDocument.fingerprint;
+ var store = this.store = new ViewHistory(id);
+ var baseDocumentUrl;
+ baseDocumentUrl = this.baseUrl;
+ this.pdfLinkService.setDocument(pdfDocument, baseDocumentUrl);
+ var pdfViewer = this.pdfViewer;
+ pdfViewer.currentScale = scale;
+ pdfViewer.setDocument(pdfDocument);
+ var firstPagePromise = pdfViewer.firstPagePromise;
+ var pagesPromise = pdfViewer.pagesPromise;
+ var onePageRendered = pdfViewer.onePageRendered;
+ this.pageRotation = 0;
+ var pdfThumbnailViewer = this.pdfThumbnailViewer;
+ pdfThumbnailViewer.setDocument(pdfDocument);
+ firstPagePromise.then(function (pdfPage) {
+ downloadedPromise.then(function () {
+ self.eventBus.dispatch('documentload', { source: self });
+ });
+ self.loadingBar.setWidth(self.appConfig.viewerContainer);
+ if (!pdfjsLib.PDFJS.disableHistory && !self.isViewerEmbedded) {
+ // The browsing history is only enabled when the viewer is standalone,
+ // i.e. not when it is embedded in a web page.
+ if (!self.preferenceShowPreviousViewOnLoad) {
+ self.pdfHistory.clearHistoryState();
+ }
+ self.pdfHistory.initialize(self.documentFingerprint);
+ if (self.pdfHistory.initialDestination) {
+ self.initialDestination = self.pdfHistory.initialDestination;
+ } else if (self.pdfHistory.initialBookmark) {
+ self.initialBookmark = self.pdfHistory.initialBookmark;
+ }
+ }
+ var initialParams = {
+ destination: self.initialDestination,
+ bookmark: self.initialBookmark,
+ hash: null
+ };
+ store.initializedPromise.then(function resolved() {
+ var storedHash = null, sidebarView = null;
+ if (self.preferenceShowPreviousViewOnLoad && store.get('exists', false)) {
+ var pageNum = store.get('page', '1');
+ var zoom = self.preferenceDefaultZoomValue || store.get('zoom', DEFAULT_SCALE_VALUE);
+ var left = store.get('scrollLeft', '0');
+ var top = store.get('scrollTop', '0');
+ storedHash = 'page=' + pageNum + '&zoom=' + zoom + ',' + left + ',' + top;
+ sidebarView = store.get('sidebarView', SidebarView.NONE);
+ } else if (self.preferenceDefaultZoomValue) {
+ storedHash = 'page=1&zoom=' + self.preferenceDefaultZoomValue;
+ }
+ self.setInitialView(storedHash, {
+ scale: scale,
+ sidebarView: sidebarView
+ });
+ initialParams.hash = storedHash;
+ // Make all navigation keys work on document load,
+ // unless the viewer is embedded in a web page.
+ if (!self.isViewerEmbedded) {
+ self.pdfViewer.focus();
+ }
+ }, function rejected(reason) {
+ console.error(reason);
+ self.setInitialView(null, { scale: scale });
+ });
+ // For documents with different page sizes,
+ // ensure that the correct location becomes visible on load.
+ pagesPromise.then(function resolved() {
+ if (!initialParams.destination && !initialParams.bookmark && !initialParams.hash) {
+ return;
+ }
+ if (self.hasEqualPageSizes) {
+ return;
+ }
+ self.initialDestination = initialParams.destination;
+ self.initialBookmark = initialParams.bookmark;
+ self.pdfViewer.currentScaleValue = self.pdfViewer.currentScaleValue;
+ self.setInitialView(initialParams.hash);
+ });
+ });
+ pdfDocument.getPageLabels().then(function (labels) {
+ if (!labels || self.preferenceDisablePageLabels) {
+ return;
+ }
+ var i = 0, numLabels = labels.length;
+ if (numLabels !== self.pagesCount) {
+ console.error('The number of Page Labels does not match ' + 'the number of pages in the document.');
+ return;
+ }
+ // Ignore page labels that correspond to standard page numbering.
+ while (i < numLabels && labels[i] === (i + 1).toString()) {
+ i++;
+ }
+ if (i === numLabels) {
+ return;
+ }
+ pdfViewer.setPageLabels(labels);
+ pdfThumbnailViewer.setPageLabels(labels);
+ self.hasPageLabels = true;
+ self._updateUIToolbar({ resetNumPages: true });
+ });
+ pagesPromise.then(function () {
+ if (self.supportsPrinting) {
+ pdfDocument.getJavaScript().then(function (javaScript) {
+ if (javaScript.length) {
+ console.warn('Warning: JavaScript is not supported');
+ self.fallback(pdfjsLib.UNSUPPORTED_FEATURES.javaScript);
+ }
+ // Hack to support auto printing.
+ var regex = /\bprint\s*\(/;
+ for (var i = 0, ii = javaScript.length; i < ii; i++) {
+ var js = javaScript[i];
+ if (js && regex.test(js)) {
+ setTimeout(function () {
+ window.print();
+ });
+ return;
+ }
+ }
+ });
+ }
+ });
+ Promise.all([
+ onePageRendered,
+ this.animationStartedPromise
+ ]).then(function () {
+ pdfDocument.getOutline().then(function (outline) {
+ self.pdfOutlineViewer.render({ outline: outline });
+ });
+ pdfDocument.getAttachments().then(function (attachments) {
+ self.pdfAttachmentViewer.render({ attachments: attachments });
+ });
+ });
+ pdfDocument.getMetadata().then(function (data) {
+ var info = data.info, metadata = data.metadata;
+ self.documentInfo = info;
+ self.metadata = metadata;
+ // Provides some basic debug information
+ console.log('PDF ' + pdfDocument.fingerprint + ' [' + info.PDFFormatVersion + ' ' + (info.Producer || '-').trim() + ' / ' + (info.Creator || '-').trim() + ']' + ' (PDF.js: ' + (pdfjsLib.version || '-') + (!pdfjsLib.PDFJS.disableWebGL ? ' [WebGL]' : '') + ')');
+ var pdfTitle;
+ if (metadata && metadata.has('dc:title')) {
+ var title = metadata.get('dc:title');
+ // Ghostscript sometimes return 'Untitled', sets the title to 'Untitled'
+ if (title !== 'Untitled') {
+ pdfTitle = title;
+ }
+ }
+ if (!pdfTitle && info && info['Title']) {
+ pdfTitle = info['Title'];
+ }
+ if (pdfTitle) {
+ self.setTitle(pdfTitle + ' - ' + document.title);
+ }
+ if (info.IsAcroFormPresent) {
+ console.warn('Warning: AcroForm/XFA is not supported');
+ self.fallback(pdfjsLib.UNSUPPORTED_FEATURES.forms);
+ }
+ var versionId = String(info.PDFFormatVersion).slice(-1) | 0;
+ var generatorId = 0;
+ var KNOWN_GENERATORS = [
+ 'acrobat distiller',
+ 'acrobat pdfwriter',
+ 'adobe livecycle',
+ 'adobe pdf library',
+ 'adobe photoshop',
+ 'ghostscript',
+ 'tcpdf',
+ 'cairo',
+ 'dvipdfm',
+ 'dvips',
+ 'pdftex',
+ 'pdfkit',
+ 'itext',
+ 'prince',
+ 'quarkxpress',
+ 'mac os x',
+ 'microsoft',
+ 'openoffice',
+ 'oracle',
+ 'luradocument',
+ 'pdf-xchange',
+ 'antenna house',
+ 'aspose.cells',
+ 'fpdf'
+ ];
+ if (info.Producer) {
+ KNOWN_GENERATORS.some(function (generator, s, i) {
+ if (generator.indexOf(s) < 0) {
+ return false;
+ }
+ generatorId = i + 1;
+ return true;
+ }.bind(null, info.Producer.toLowerCase()));
+ }
+ var formType = !info.IsAcroFormPresent ? null : info.IsXFAPresent ? 'xfa' : 'acroform';
+ self.externalServices.reportTelemetry({
+ type: 'documentInfo',
+ version: versionId,
+ generator: generatorId,
+ formType: formType
+ });
+ });
+ },
+ setInitialView: function pdfViewSetInitialView(storedHash, options) {
+ var scale = options && options.scale;
+ var sidebarView = options && options.sidebarView;
+ this.isInitialViewSet = true;
+ this.pdfSidebar.setInitialView(this.preferenceSidebarViewOnLoad || sidebarView | 0);
+ if (this.initialDestination) {
+ this.pdfLinkService.navigateTo(this.initialDestination);
+ this.initialDestination = null;
+ } else if (this.initialBookmark) {
+ this.pdfLinkService.setHash(this.initialBookmark);
+ this.pdfHistory.push({ hash: this.initialBookmark }, true);
+ this.initialBookmark = null;
+ } else if (storedHash) {
+ this.pdfLinkService.setHash(storedHash);
+ } else if (scale) {
+ this.pdfViewer.currentScaleValue = scale;
+ this.page = 1;
+ }
+ if (!this.pdfViewer.currentScaleValue) {
+ // Scale was not initialized: invalid bookmark or scale was not specified.
+ // Setting the default one.
+ this.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
+ }
+ },
+ cleanup: function pdfViewCleanup() {
+ if (!this.pdfDocument) {
+ return;
+ }
+ // run cleanup when document is loaded
+ this.pdfViewer.cleanup();
+ this.pdfThumbnailViewer.cleanup();
+ this.pdfDocument.cleanup();
+ },
+ forceRendering: function pdfViewForceRendering() {
+ this.pdfRenderingQueue.printing = this.printing;
+ this.pdfRenderingQueue.isThumbnailViewEnabled = this.pdfSidebar.isThumbnailViewVisible;
+ this.pdfRenderingQueue.renderHighestPriority();
+ },
+ beforePrint: function pdfViewSetupBeforePrint() {
+ if (this.printService) {
+ // There is no way to suppress beforePrint/afterPrint events,
+ // but PDFPrintService may generate double events -- this will ignore
+ // the second event that will be coming from native window.print().
+ return;
+ }
+ if (!this.supportsPrinting) {
+ var printMessage = mozL10n.get('printing_not_supported', null, 'Warning: Printing is not fully supported by this browser.');
+ this.error(printMessage);
+ return;
+ }
+ // The beforePrint is a sync method and we need to know layout before
+ // returning from this method. Ensure that we can get sizes of the pages.
+ if (!this.pdfViewer.pageViewsReady) {
+ var notReadyMessage = mozL10n.get('printing_not_ready', null, 'Warning: The PDF is not fully loaded for printing.');
+ window.alert(notReadyMessage);
+ return;
+ }
+ var pagesOverview = this.pdfViewer.getPagesOverview();
+ var printContainer = this.appConfig.printContainer;
+ var printService = PDFPrintServiceFactory.instance.createPrintService(this.pdfDocument, pagesOverview, printContainer);
+ this.printService = printService;
+ this.forceRendering();
+ printService.layout();
+ this.externalServices.reportTelemetry({ type: 'print' });
+ },
+ // Whether all pages of the PDF have the same width and height.
+ get hasEqualPageSizes() {
+ var firstPage = this.pdfViewer.getPageView(0);
+ for (var i = 1, ii = this.pagesCount; i < ii; ++i) {
+ var pageView = this.pdfViewer.getPageView(i);
+ if (pageView.width !== firstPage.width || pageView.height !== firstPage.height) {
+ return false;
+ }
+ }
+ return true;
+ },
+ afterPrint: function pdfViewSetupAfterPrint() {
+ if (this.printService) {
+ this.printService.destroy();
+ this.printService = null;
+ }
+ this.forceRendering();
+ },
+ rotatePages: function pdfViewRotatePages(delta) {
+ var pageNumber = this.page;
+ this.pageRotation = (this.pageRotation + 360 + delta) % 360;
+ this.pdfViewer.pagesRotation = this.pageRotation;
+ this.pdfThumbnailViewer.pagesRotation = this.pageRotation;
+ this.forceRendering();
+ this.pdfViewer.currentPageNumber = pageNumber;
+ },
+ requestPresentationMode: function pdfViewRequestPresentationMode() {
+ if (!this.pdfPresentationMode) {
+ return;
+ }
+ this.pdfPresentationMode.request();
+ },
+ /**
+ * @typedef UpdateUIToolbarParameters
+ * @property {number} pageNumber
+ * @property {string} pageLabel
+ * @property {string} scaleValue
+ * @property {number} scale
+ * @property {boolean} resetNumPages
+ */
+ /**
+ * @param {Object} UpdateUIToolbarParameters
+ * @private
+ */
+ _updateUIToolbar: function (params) {
+ function selectScaleOption(value, scale) {
+ var options = toolbarConfig.scaleSelect.options;
+ var predefinedValueFound = false;
+ for (var i = 0, ii = options.length; i < ii; i++) {
+ var option = options[i];
+ if (option.value !== value) {
+ option.selected = false;
+ continue;
+ }
+ option.selected = true;
+ predefinedValueFound = true;
+ }
+ if (!predefinedValueFound) {
+ var customScale = Math.round(scale * 10000) / 100;
+ toolbarConfig.customScaleOption.textContent = mozL10n.get('page_scale_percent', { scale: customScale }, '{{scale}}%');
+ toolbarConfig.customScaleOption.selected = true;
+ }
+ }
+ var pageNumber = params.pageNumber || this.pdfViewer.currentPageNumber;
+ var scaleValue = (params.scaleValue || params.scale || this.pdfViewer.currentScaleValue || DEFAULT_SCALE_VALUE).toString();
+ var scale = params.scale || this.pdfViewer.currentScale;
+ var resetNumPages = params.resetNumPages || false;
+ var toolbarConfig = this.appConfig.toolbar;
+ var pagesCount = this.pagesCount;
+ if (resetNumPages) {
+ if (this.hasPageLabels) {
+ toolbarConfig.pageNumber.type = 'text';
+ } else {
+ toolbarConfig.pageNumber.type = 'number';
+ toolbarConfig.numPages.textContent = mozL10n.get('of_pages', { pagesCount: pagesCount }, 'of {{pagesCount}}');
+ }
+ toolbarConfig.pageNumber.max = pagesCount;
+ }
+ if (this.hasPageLabels) {
+ toolbarConfig.pageNumber.value = params.pageLabel || this.pdfViewer.currentPageLabel;
+ toolbarConfig.numPages.textContent = mozL10n.get('page_of_pages', {
+ pageNumber: pageNumber,
+ pagesCount: pagesCount
+ }, '({{pageNumber}} of {{pagesCount}})');
+ } else {
+ toolbarConfig.pageNumber.value = pageNumber;
+ }
+ toolbarConfig.previous.disabled = pageNumber <= 1;
+ toolbarConfig.next.disabled = pageNumber >= pagesCount;
+ toolbarConfig.firstPage.disabled = pageNumber <= 1;
+ toolbarConfig.lastPage.disabled = pageNumber >= pagesCount;
+ toolbarConfig.zoomOut.disabled = scale <= MIN_SCALE;
+ toolbarConfig.zoomIn.disabled = scale >= MAX_SCALE;
+ selectScaleOption(scaleValue, scale);
+ },
+ bindEvents: function pdfViewBindEvents() {
+ var eventBus = this.eventBus;
+ eventBus.on('resize', webViewerResize);
+ eventBus.on('localized', webViewerLocalized);
+ eventBus.on('hashchange', webViewerHashchange);
+ eventBus.on('beforeprint', this.beforePrint.bind(this));
+ eventBus.on('afterprint', this.afterPrint.bind(this));
+ eventBus.on('pagerendered', webViewerPageRendered);
+ eventBus.on('textlayerrendered', webViewerTextLayerRendered);
+ eventBus.on('updateviewarea', webViewerUpdateViewarea);
+ eventBus.on('pagechanging', webViewerPageChanging);
+ eventBus.on('scalechanging', webViewerScaleChanging);
+ eventBus.on('sidebarviewchanged', webViewerSidebarViewChanged);
+ eventBus.on('pagemode', webViewerPageMode);
+ eventBus.on('namedaction', webViewerNamedAction);
+ eventBus.on('presentationmodechanged', webViewerPresentationModeChanged);
+ eventBus.on('presentationmode', webViewerPresentationMode);
+ eventBus.on('openfile', webViewerOpenFile);
+ eventBus.on('print', webViewerPrint);
+ eventBus.on('download', webViewerDownload);
+ eventBus.on('firstpage', webViewerFirstPage);
+ eventBus.on('lastpage', webViewerLastPage);
+ eventBus.on('rotatecw', webViewerRotateCw);
+ eventBus.on('rotateccw', webViewerRotateCcw);
+ eventBus.on('documentproperties', webViewerDocumentProperties);
+ eventBus.on('find', webViewerFind);
+ eventBus.on('findfromurlhash', webViewerFindFromUrlHash);
+ }
+ };
+ var validateFileURL;
+ function loadAndEnablePDFBug(enabledTabs) {
+ return new Promise(function (resolve, reject) {
+ var appConfig = PDFViewerApplication.appConfig;
+ var script = document.createElement('script');
+ script.src = appConfig.debuggerScriptPath;
+ script.onload = function () {
+ PDFBug.enable(enabledTabs);
+ PDFBug.init(pdfjsLib, appConfig.mainContainer);
+ resolve();
+ };
+ script.onerror = function () {
+ reject(new Error('Cannot load debugger at ' + script.src));
+ };
+ (document.getElementsByTagName('head')[0] || document.body).appendChild(script);
+ });
+ }
+ function webViewerInitialized() {
+ var file;
+ file = window.location.href.split('#')[0];
+ var waitForBeforeOpening = [];
+ var appConfig = PDFViewerApplication.appConfig;
+ appConfig.toolbar.openFile.setAttribute('hidden', 'true');
+ appConfig.secondaryToolbar.openFileButton.setAttribute('hidden', 'true');
+ var PDFJS = pdfjsLib.PDFJS;
+ if (PDFViewerApplication.preferencePdfBugEnabled) {
+ // Special debugging flags in the hash section of the URL.
+ var hash = document.location.hash.substring(1);
+ var hashParams = parseQueryString(hash);
+ if ('disableworker' in hashParams) {
+ PDFJS.disableWorker = hashParams['disableworker'] === 'true';
+ }
+ if ('disablerange' in hashParams) {
+ PDFJS.disableRange = hashParams['disablerange'] === 'true';
+ }
+ if ('disablestream' in hashParams) {
+ PDFJS.disableStream = hashParams['disablestream'] === 'true';
+ }
+ if ('disableautofetch' in hashParams) {
+ PDFJS.disableAutoFetch = hashParams['disableautofetch'] === 'true';
+ }
+ if ('disablefontface' in hashParams) {
+ PDFJS.disableFontFace = hashParams['disablefontface'] === 'true';
+ }
+ if ('disablehistory' in hashParams) {
+ PDFJS.disableHistory = hashParams['disablehistory'] === 'true';
+ }
+ if ('webgl' in hashParams) {
+ PDFJS.disableWebGL = hashParams['webgl'] !== 'true';
+ }
+ if ('useonlycsszoom' in hashParams) {
+ PDFJS.useOnlyCssZoom = hashParams['useonlycsszoom'] === 'true';
+ }
+ if ('verbosity' in hashParams) {
+ PDFJS.verbosity = hashParams['verbosity'] | 0;
+ }
+ if ('ignorecurrentpositiononzoom' in hashParams) {
+ PDFJS.ignoreCurrentPositionOnZoom = hashParams['ignorecurrentpositiononzoom'] === 'true';
+ }
+ if ('textlayer' in hashParams) {
+ switch (hashParams['textlayer']) {
+ case 'off':
+ PDFJS.disableTextLayer = true;
+ break;
+ case 'visible':
+ case 'shadow':
+ case 'hover':
+ var viewer = appConfig.viewerContainer;
+ viewer.classList.add('textLayer-' + hashParams['textlayer']);
+ break;
+ }
+ }
+ if ('pdfbug' in hashParams) {
+ PDFJS.pdfBug = true;
+ var pdfBug = hashParams['pdfbug'];
+ var enabled = pdfBug.split(',');
+ waitForBeforeOpening.push(loadAndEnablePDFBug(enabled));
+ }
+ }
+ if (!PDFViewerApplication.supportsDocumentFonts) {
+ PDFJS.disableFontFace = true;
+ console.warn(mozL10n.get('web_fonts_disabled', null, 'Web fonts are disabled: unable to use embedded PDF fonts.'));
+ }
+ if (!PDFViewerApplication.supportsPrinting) {
+ appConfig.toolbar.print.classList.add('hidden');
+ appConfig.secondaryToolbar.printButton.classList.add('hidden');
+ }
+ if (!PDFViewerApplication.supportsFullscreen) {
+ appConfig.toolbar.presentationModeButton.classList.add('hidden');
+ appConfig.secondaryToolbar.presentationModeButton.classList.add('hidden');
+ }
+ if (PDFViewerApplication.supportsIntegratedFind) {
+ appConfig.toolbar.viewFind.classList.add('hidden');
+ }
+ // Suppress context menus for some controls
+ appConfig.toolbar.scaleSelect.oncontextmenu = noContextMenuHandler;
+ appConfig.sidebar.mainContainer.addEventListener('transitionend', function (e) {
+ if (e.target === /* mainContainer */
+ this) {
+ PDFViewerApplication.eventBus.dispatch('resize');
+ }
+ }, true);
+ appConfig.sidebar.toggleButton.addEventListener('click', function () {
+ PDFViewerApplication.pdfSidebar.toggle();
+ });
+ appConfig.toolbar.previous.addEventListener('click', function () {
+ PDFViewerApplication.page--;
+ });
+ appConfig.toolbar.next.addEventListener('click', function () {
+ PDFViewerApplication.page++;
+ });
+ appConfig.toolbar.zoomIn.addEventListener('click', function () {
+ PDFViewerApplication.zoomIn();
+ });
+ appConfig.toolbar.zoomOut.addEventListener('click', function () {
+ PDFViewerApplication.zoomOut();
+ });
+ appConfig.toolbar.pageNumber.addEventListener('click', function () {
+ this.select();
+ });
+ appConfig.toolbar.pageNumber.addEventListener('change', function () {
+ var pdfViewer = PDFViewerApplication.pdfViewer;
+ pdfViewer.currentPageLabel = this.value;
+ // Ensure that the page number input displays the correct value, even if the
+ // value entered by the user was invalid (e.g. a floating point number).
+ if (this.value !== pdfViewer.currentPageNumber.toString() && this.value !== pdfViewer.currentPageLabel) {
+ PDFViewerApplication._updateUIToolbar({});
+ }
+ });
+ appConfig.toolbar.scaleSelect.addEventListener('change', function () {
+ if (this.value === 'custom') {
+ return;
+ }
+ PDFViewerApplication.pdfViewer.currentScaleValue = this.value;
+ });
+ appConfig.toolbar.presentationModeButton.addEventListener('click', function (e) {
+ PDFViewerApplication.eventBus.dispatch('presentationmode');
+ });
+ appConfig.toolbar.openFile.addEventListener('click', function (e) {
+ PDFViewerApplication.eventBus.dispatch('openfile');
+ });
+ appConfig.toolbar.print.addEventListener('click', function (e) {
+ PDFViewerApplication.eventBus.dispatch('print');
+ });
+ appConfig.toolbar.download.addEventListener('click', function (e) {
+ PDFViewerApplication.eventBus.dispatch('download');
+ });
+ Promise.all(waitForBeforeOpening).then(function () {
+ webViewerOpenFileViaURL(file);
+ }).catch(function (reason) {
+ PDFViewerApplication.error(mozL10n.get('loading_error', null, 'An error occurred while opening.'), reason);
+ });
+ }
+ var webViewerOpenFileViaURL;
+ webViewerOpenFileViaURL = function webViewerOpenFileViaURL(file) {
+ PDFViewerApplication.setTitleUsingUrl(file);
+ PDFViewerApplication.initPassiveLoading();
+ };
+ function webViewerPageRendered(e) {
+ var pageNumber = e.pageNumber;
+ var pageIndex = pageNumber - 1;
+ var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex);
+ // If the page is still visible when it has finished rendering,
+ // ensure that the page number input loading indicator is hidden.
+ if (pageNumber === PDFViewerApplication.page) {
+ var pageNumberInput = PDFViewerApplication.appConfig.toolbar.pageNumber;
+ pageNumberInput.classList.remove(PAGE_NUMBER_LOADING_INDICATOR);
+ }
+ // Prevent errors in the edge-case where the PDF document is removed *before*
+ // the 'pagerendered' event handler is invoked.
+ if (!pageView) {
+ return;
+ }
+ // Use the rendered page to set the corresponding thumbnail image.
+ if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
+ var thumbnailView = PDFViewerApplication.pdfThumbnailViewer.getThumbnail(pageIndex);
+ thumbnailView.setImage(pageView);
+ }
+ if (pdfjsLib.PDFJS.pdfBug && Stats.enabled && pageView.stats) {
+ Stats.add(pageNumber, pageView.stats);
+ }
+ if (pageView.error) {
+ PDFViewerApplication.error(mozL10n.get('rendering_error', null, 'An error occurred while rendering the page.'), pageView.error);
+ }
+ PDFViewerApplication.externalServices.reportTelemetry({ type: 'pageInfo' });
+ // It is a good time to report stream and font types.
+ PDFViewerApplication.pdfDocument.getStats().then(function (stats) {
+ PDFViewerApplication.externalServices.reportTelemetry({
+ type: 'documentStats',
+ stats: stats
+ });
+ });
+ }
+ function webViewerTextLayerRendered(e) {
+ if (e.numTextDivs > 0 && !PDFViewerApplication.supportsDocumentColors) {
+ console.error(mozL10n.get('document_colors_not_allowed', null, 'PDF documents are not allowed to use their own colors: ' + '\'Allow pages to choose their own colors\' ' + 'is deactivated in the browser.'));
+ PDFViewerApplication.fallback();
+ }
+ }
+ function webViewerPageMode(e) {
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ // Handle the 'pagemode' hash parameter, see also `PDFLinkService_setHash`.
+ var mode = e.mode, view;
+ switch (mode) {
+ case 'thumbs':
+ view = SidebarView.THUMBS;
+ break;
+ case 'bookmarks':
+ case 'outline':
+ view = SidebarView.OUTLINE;
+ break;
+ case 'attachments':
+ view = SidebarView.ATTACHMENTS;
+ break;
+ case 'none':
+ view = SidebarView.NONE;
+ break;
+ default:
+ console.error('Invalid "pagemode" hash parameter: ' + mode);
+ return;
+ }
+ PDFViewerApplication.pdfSidebar.switchView(view, /* forceOpen = */
+ true);
+ }
+ function webViewerNamedAction(e) {
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ // Processing couple of named actions that might be useful.
+ // See also PDFLinkService.executeNamedAction
+ var action = e.action;
+ switch (action) {
+ case 'GoToPage':
+ PDFViewerApplication.appConfig.toolbar.pageNumber.select();
+ break;
+ case 'Find':
+ if (!PDFViewerApplication.supportsIntegratedFind) {
+ PDFViewerApplication.findBar.toggle();
+ }
+ break;
+ }
+ }
+ function webViewerPresentationModeChanged(e) {
+ var active = e.active;
+ var switchInProgress = e.switchInProgress;
+ PDFViewerApplication.pdfViewer.presentationModeState = switchInProgress ? PresentationModeState.CHANGING : active ? PresentationModeState.FULLSCREEN : PresentationModeState.NORMAL;
+ }
+ function webViewerSidebarViewChanged(e) {
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ PDFViewerApplication.pdfRenderingQueue.isThumbnailViewEnabled = PDFViewerApplication.pdfSidebar.isThumbnailViewVisible;
+ var store = PDFViewerApplication.store;
+ if (!store || !PDFViewerApplication.isInitialViewSet) {
+ // Only update the storage when the document has been loaded *and* rendered.
+ return;
+ }
+ store.initializedPromise.then(function () {
+ store.set('sidebarView', e.view).catch(function () {
+ });
+ });
+ }
+ function webViewerUpdateViewarea(e) {
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ var location = e.location, store = PDFViewerApplication.store;
+ if (store) {
+ store.initializedPromise.then(function () {
+ store.setMultiple({
+ 'exists': true,
+ 'page': location.pageNumber,
+ 'zoom': location.scale,
+ 'scrollLeft': location.left,
+ 'scrollTop': location.top
+ }).catch(function () {
+ });
+ });
+ }
+ var href = PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams);
+ PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href;
+ PDFViewerApplication.appConfig.secondaryToolbar.viewBookmarkButton.href = href;
+ // Update the current bookmark in the browsing history.
+ PDFViewerApplication.pdfHistory.updateCurrentBookmark(location.pdfOpenParams, location.pageNumber);
+ // Show/hide the loading indicator in the page number input element.
+ var pageNumberInput = PDFViewerApplication.appConfig.toolbar.pageNumber;
+ var currentPage = PDFViewerApplication.pdfViewer.getPageView(PDFViewerApplication.page - 1);
+ if (currentPage.renderingState === RenderingStates.FINISHED) {
+ pageNumberInput.classList.remove(PAGE_NUMBER_LOADING_INDICATOR);
+ } else {
+ pageNumberInput.classList.add(PAGE_NUMBER_LOADING_INDICATOR);
+ }
+ }
+ window.addEventListener('resize', function webViewerResize(evt) {
+ if (!PDFViewerApplication.eventBus) {
+ return;
+ }
+ PDFViewerApplication.eventBus.dispatch('resize');
+ });
+ function webViewerResize() {
+ if (PDFViewerApplication.initialized) {
+ var currentScaleValue = PDFViewerApplication.pdfViewer.currentScaleValue;
+ if (currentScaleValue === 'auto' || currentScaleValue === 'page-fit' || currentScaleValue === 'page-width') {
+ // Note: the scale is constant for 'page-actual'.
+ PDFViewerApplication.pdfViewer.currentScaleValue = currentScaleValue;
+ } else if (!currentScaleValue) {
+ // Normally this shouldn't happen, but if the scale wasn't initialized
+ // we set it to the default value in order to prevent any issues.
+ // (E.g. the document being rendered with the wrong scale on load.)
+ PDFViewerApplication.pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
+ }
+ PDFViewerApplication.pdfViewer.update();
+ }
+ }
+ window.addEventListener('hashchange', function webViewerHashchange(evt) {
+ var hash = document.location.hash.substring(1);
+ PDFViewerApplication.eventBus.dispatch('hashchange', { hash: hash });
+ });
+ function webViewerHashchange(e) {
+ if (PDFViewerApplication.pdfHistory.isHashChangeUnlocked) {
+ var hash = e.hash;
+ if (!hash) {
+ return;
+ }
+ if (!PDFViewerApplication.isInitialViewSet) {
+ PDFViewerApplication.initialBookmark = hash;
+ } else {
+ PDFViewerApplication.pdfLinkService.setHash(hash);
+ }
+ }
+ }
+ var webViewerFileInputChange;
+ window.addEventListener('localized', function localized(evt) {
+ PDFViewerApplication.eventBus.dispatch('localized');
+ });
+ function webViewerLocalized() {
+ document.getElementsByTagName('html')[0].dir = mozL10n.getDirection();
+ PDFViewerApplication.animationStartedPromise.then(function () {
+ // Adjust the width of the zoom box to fit the content.
+ // Note: If the window is narrow enough that the zoom box is not visible,
+ // we temporarily show it to be able to adjust its width.
+ var container = PDFViewerApplication.appConfig.toolbar.scaleSelectContainer;
+ if (container.clientWidth === 0) {
+ container.setAttribute('style', 'display: inherit;');
+ }
+ if (container.clientWidth > 0) {
+ var select = PDFViewerApplication.appConfig.toolbar.scaleSelect;
+ select.setAttribute('style', 'min-width: inherit;');
+ var width = select.clientWidth + SCALE_SELECT_CONTAINER_PADDING;
+ select.setAttribute('style', 'min-width: ' + (width + SCALE_SELECT_PADDING) + 'px;');
+ container.setAttribute('style', 'min-width: ' + width + 'px; ' + 'max-width: ' + width + 'px;');
+ }
+ });
+ }
+ function webViewerPresentationMode() {
+ PDFViewerApplication.requestPresentationMode();
+ }
+ function webViewerOpenFile() {
+ var openFileInputName = PDFViewerApplication.appConfig.openFileInputName;
+ document.getElementById(openFileInputName).click();
+ }
+ function webViewerPrint() {
+ window.print();
+ }
+ function webViewerDownload() {
+ PDFViewerApplication.download();
+ }
+ function webViewerFirstPage() {
+ if (PDFViewerApplication.pdfDocument) {
+ PDFViewerApplication.page = 1;
+ }
+ }
+ function webViewerLastPage() {
+ if (PDFViewerApplication.pdfDocument) {
+ PDFViewerApplication.page = PDFViewerApplication.pagesCount;
+ }
+ }
+ function webViewerRotateCw() {
+ PDFViewerApplication.rotatePages(90);
+ }
+ function webViewerRotateCcw() {
+ PDFViewerApplication.rotatePages(-90);
+ }
+ function webViewerDocumentProperties() {
+ PDFViewerApplication.pdfDocumentProperties.open();
+ }
+ function webViewerFind(e) {
+ PDFViewerApplication.findController.executeCommand('find' + e.type, {
+ query: e.query,
+ phraseSearch: e.phraseSearch,
+ caseSensitive: e.caseSensitive,
+ highlightAll: e.highlightAll,
+ findPrevious: e.findPrevious
+ });
+ }
+ function webViewerFindFromUrlHash(e) {
+ PDFViewerApplication.findController.executeCommand('find', {
+ query: e.query,
+ phraseSearch: e.phraseSearch,
+ caseSensitive: false,
+ highlightAll: true,
+ findPrevious: false
+ });
+ }
+ function webViewerScaleChanging(e) {
+ PDFViewerApplication._updateUIToolbar({
+ scaleValue: e.presetValue,
+ scale: e.scale
+ });
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ PDFViewerApplication.pdfViewer.update();
+ }
+ function webViewerPageChanging(e) {
+ var page = e.pageNumber;
+ PDFViewerApplication._updateUIToolbar({
+ pageNumber: page,
+ pageLabel: e.pageLabel
+ });
+ if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) {
+ PDFViewerApplication.pdfThumbnailViewer.scrollThumbnailIntoView(page);
+ }
+ // we need to update stats
+ if (pdfjsLib.PDFJS.pdfBug && Stats.enabled) {
+ var pageView = PDFViewerApplication.pdfViewer.getPageView(page - 1);
+ if (pageView.stats) {
+ Stats.add(page, pageView.stats);
+ }
+ }
+ }
+ var zoomDisabled = false, zoomDisabledTimeout;
+ function handleMouseWheel(evt) {
+ var pdfViewer = PDFViewerApplication.pdfViewer;
+ if (!pdfViewer || pdfViewer.isInPresentationMode) {
+ return;
+ }
+ if (evt.ctrlKey || evt.metaKey) {
+ var support = PDFViewerApplication.supportedMouseWheelZoomModifierKeys;
+ if (evt.ctrlKey && !support.ctrlKey || evt.metaKey && !support.metaKey) {
+ return;
+ }
+ // Only zoom the pages, not the entire viewer.
+ evt.preventDefault();
+ // NOTE: this check must be placed *after* preventDefault.
+ if (zoomDisabled) {
+ return;
+ }
+ var previousScale = pdfViewer.currentScale;
+ var delta = normalizeWheelEventDelta(evt);
+ var MOUSE_WHEEL_DELTA_PER_PAGE_SCALE = 3.0;
+ var ticks = delta * MOUSE_WHEEL_DELTA_PER_PAGE_SCALE;
+ if (ticks < 0) {
+ PDFViewerApplication.zoomOut(-ticks);
+ } else {
+ PDFViewerApplication.zoomIn(ticks);
+ }
+ var currentScale = pdfViewer.currentScale;
+ if (previousScale !== currentScale) {
+ // After scaling the page via zoomIn/zoomOut, the position of the upper-
+ // left corner is restored. When the mouse wheel is used, the position
+ // under the cursor should be restored instead.
+ var scaleCorrectionFactor = currentScale / previousScale - 1;
+ var rect = pdfViewer.container.getBoundingClientRect();
+ var dx = evt.clientX - rect.left;
+ var dy = evt.clientY - rect.top;
+ pdfViewer.container.scrollLeft += dx * scaleCorrectionFactor;
+ pdfViewer.container.scrollTop += dy * scaleCorrectionFactor;
+ }
+ } else {
+ zoomDisabled = true;
+ clearTimeout(zoomDisabledTimeout);
+ zoomDisabledTimeout = setTimeout(function () {
+ zoomDisabled = false;
+ }, 1000);
+ }
+ }
+ window.addEventListener('wheel', handleMouseWheel);
+ window.addEventListener('click', function click(evt) {
+ if (!PDFViewerApplication.secondaryToolbar.isOpen) {
+ return;
+ }
+ var appConfig = PDFViewerApplication.appConfig;
+ if (PDFViewerApplication.pdfViewer.containsElement(evt.target) || appConfig.toolbar.container.contains(evt.target) && evt.target !== appConfig.secondaryToolbar.toggleButton) {
+ PDFViewerApplication.secondaryToolbar.close();
+ }
+ }, true);
+ window.addEventListener('keydown', function keydown(evt) {
+ if (OverlayManager.active) {
+ return;
+ }
+ var handled = false;
+ var cmd = (evt.ctrlKey ? 1 : 0) | (evt.altKey ? 2 : 0) | (evt.shiftKey ? 4 : 0) | (evt.metaKey ? 8 : 0);
+ var pdfViewer = PDFViewerApplication.pdfViewer;
+ var isViewerInPresentationMode = pdfViewer && pdfViewer.isInPresentationMode;
+ // First, handle the key bindings that are independent whether an input
+ // control is selected or not.
+ if (cmd === 1 || cmd === 8 || cmd === 5 || cmd === 12) {
+ // either CTRL or META key with optional SHIFT.
+ switch (evt.keyCode) {
+ case 70:
+ // f
+ if (!PDFViewerApplication.supportsIntegratedFind) {
+ PDFViewerApplication.findBar.open();
+ handled = true;
+ }
+ break;
+ case 71:
+ // g
+ if (!PDFViewerApplication.supportsIntegratedFind) {
+ var findState = PDFViewerApplication.findController.state;
+ if (findState) {
+ PDFViewerApplication.findController.executeCommand('findagain', {
+ query: findState.query,
+ phraseSearch: findState.phraseSearch,
+ caseSensitive: findState.caseSensitive,
+ highlightAll: findState.highlightAll,
+ findPrevious: cmd === 5 || cmd === 12
+ });
+ }
+ handled = true;
+ }
+ break;
+ case 61:
+ // FF/Mac '='
+ case 107:
+ // FF '+' and '='
+ case 187:
+ // Chrome '+'
+ case 171:
+ // FF with German keyboard
+ if (!isViewerInPresentationMode) {
+ PDFViewerApplication.zoomIn();
+ }
+ handled = true;
+ break;
+ case 173:
+ // FF/Mac '-'
+ case 109:
+ // FF '-'
+ case 189:
+ // Chrome '-'
+ if (!isViewerInPresentationMode) {
+ PDFViewerApplication.zoomOut();
+ }
+ handled = true;
+ break;
+ case 48:
+ // '0'
+ case 96:
+ // '0' on Numpad of Swedish keyboard
+ if (!isViewerInPresentationMode) {
+ // keeping it unhandled (to restore page zoom to 100%)
+ setTimeout(function () {
+ // ... and resetting the scale after browser adjusts its scale
+ pdfViewer.currentScaleValue = DEFAULT_SCALE_VALUE;
+ });
+ handled = false;
+ }
+ break;
+ }
+ }
+ // CTRL+ALT or Option+Command
+ if (cmd === 3 || cmd === 10) {
+ switch (evt.keyCode) {
+ case 80:
+ // p
+ PDFViewerApplication.requestPresentationMode();
+ handled = true;
+ break;
+ case 71:
+ // g
+ // focuses input#pageNumber field
+ PDFViewerApplication.appConfig.toolbar.pageNumber.select();
+ handled = true;
+ break;
+ }
+ }
+ if (handled) {
+ evt.preventDefault();
+ return;
+ }
+ // Some shortcuts should not get handled if a control/input element
+ // is selected.
+ var curElement = document.activeElement || document.querySelector(':focus');
+ var curElementTagName = curElement && curElement.tagName.toUpperCase();
+ if (curElementTagName === 'INPUT' || curElementTagName === 'TEXTAREA' || curElementTagName === 'SELECT') {
+ // Make sure that the secondary toolbar is closed when Escape is pressed.
+ if (evt.keyCode !== 27) {
+ // 'Esc'
+ return;
+ }
+ }
+ var ensureViewerFocused = false;
+ if (cmd === 0) {
+ // no control key pressed at all.
+ switch (evt.keyCode) {
+ case 38:
+ // up arrow
+ case 33:
+ // pg up
+ case 8:
+ // backspace
+ if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== 'page-fit') {
+ break;
+ }
+ /* in presentation mode */
+ case 37:
+ // left arrow
+ // horizontal scrolling using arrow keys
+ if (pdfViewer.isHorizontalScrollbarEnabled) {
+ break;
+ }
+ case 75:
+ // 'k'
+ case 80:
+ // 'p'
+ if (PDFViewerApplication.page > 1) {
+ PDFViewerApplication.page--;
+ }
+ handled = true;
+ break;
+ case 27:
+ // esc key
+ if (PDFViewerApplication.secondaryToolbar.isOpen) {
+ PDFViewerApplication.secondaryToolbar.close();
+ handled = true;
+ }
+ if (!PDFViewerApplication.supportsIntegratedFind && PDFViewerApplication.findBar.opened) {
+ PDFViewerApplication.findBar.close();
+ handled = true;
+ }
+ break;
+ case 40:
+ // down arrow
+ case 34:
+ // pg down
+ case 32:
+ // spacebar
+ if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== 'page-fit') {
+ break;
+ }
+ case 39:
+ // right arrow
+ // horizontal scrolling using arrow keys
+ if (pdfViewer.isHorizontalScrollbarEnabled) {
+ break;
+ }
+ case 74:
+ // 'j'
+ case 78:
+ // 'n'
+ if (PDFViewerApplication.page < PDFViewerApplication.pagesCount) {
+ PDFViewerApplication.page++;
+ }
+ handled = true;
+ break;
+ case 36:
+ // home
+ if (isViewerInPresentationMode || PDFViewerApplication.page > 1) {
+ PDFViewerApplication.page = 1;
+ handled = true;
+ ensureViewerFocused = true;
+ }
+ break;
+ case 35:
+ // end
+ if (isViewerInPresentationMode || PDFViewerApplication.page < PDFViewerApplication.pagesCount) {
+ PDFViewerApplication.page = PDFViewerApplication.pagesCount;
+ handled = true;
+ ensureViewerFocused = true;
+ }
+ break;
+ case 72:
+ // 'h'
+ if (!isViewerInPresentationMode) {
+ PDFViewerApplication.handTool.toggle();
+ }
+ break;
+ case 82:
+ // 'r'
+ PDFViewerApplication.rotatePages(90);
+ break;
+ }
+ }
+ if (cmd === 4) {
+ // shift-key
+ switch (evt.keyCode) {
+ case 32:
+ // spacebar
+ if (!isViewerInPresentationMode && pdfViewer.currentScaleValue !== 'page-fit') {
+ break;
+ }
+ if (PDFViewerApplication.page > 1) {
+ PDFViewerApplication.page--;
+ }
+ handled = true;
+ break;
+ case 82:
+ // 'r'
+ PDFViewerApplication.rotatePages(-90);
+ break;
+ }
+ }
+ if (!handled && !isViewerInPresentationMode) {
+ // 33=Page Up 34=Page Down 35=End 36=Home
+ // 37=Left 38=Up 39=Right 40=Down
+ // 32=Spacebar
+ if (evt.keyCode >= 33 && evt.keyCode <= 40 || evt.keyCode === 32 && curElementTagName !== 'BUTTON') {
+ ensureViewerFocused = true;
+ }
+ }
+ if (cmd === 2) {
+ // alt-key
+ switch (evt.keyCode) {
+ case 37:
+ // left arrow
+ if (isViewerInPresentationMode) {
+ PDFViewerApplication.pdfHistory.back();
+ handled = true;
+ }
+ break;
+ case 39:
+ // right arrow
+ if (isViewerInPresentationMode) {
+ PDFViewerApplication.pdfHistory.forward();
+ handled = true;
+ }
+ break;
+ }
+ }
+ if (ensureViewerFocused && !pdfViewer.containsElement(curElement)) {
+ // The page container is not focused, but a page navigation key has been
+ // pressed. Change the focus to the viewer container to make sure that
+ // navigation by keyboard works as expected.
+ pdfViewer.focus();
+ }
+ if (handled) {
+ evt.preventDefault();
+ }
+ });
+ window.addEventListener('beforeprint', function beforePrint(evt) {
+ PDFViewerApplication.eventBus.dispatch('beforeprint');
+ });
+ window.addEventListener('afterprint', function afterPrint(evt) {
+ PDFViewerApplication.eventBus.dispatch('afterprint');
+ });
+ (function animationStartedClosure() {
+ // The offsetParent is not set until the pdf.js iframe or object is visible.
+ // Waiting for first animation.
+ PDFViewerApplication.animationStartedPromise = new Promise(function (resolve) {
+ window.requestAnimationFrame(resolve);
+ });
+ }());
+ /* Abstract factory for the print service. */
+ var PDFPrintServiceFactory = {
+ instance: {
+ supportsPrinting: false,
+ createPrintService: function () {
+ throw new Error('Not implemented: createPrintService');
+ }
+ }
+ };
+ exports.PDFViewerApplication = PDFViewerApplication;
+ exports.DefaultExernalServices = DefaultExernalServices;
+ exports.PDFPrintServiceFactory = PDFPrintServiceFactory;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebFirefoxPrintService = {}, root.pdfjsWebUIUtils, root.pdfjsWebApp, root.pdfjsWebPDFJS);
+ }(this, function (exports, uiUtils, app, pdfjsLib) {
+ var CSS_UNITS = uiUtils.CSS_UNITS;
+ var PDFPrintServiceFactory = app.PDFPrintServiceFactory;
+ // Creates a placeholder with div and canvas with right size for the page.
+ function composePage(pdfDocument, pageNumber, size, printContainer) {
+ var canvas = document.createElement('canvas');
+ // The size of the canvas in pixels for printing.
+ var PRINT_RESOLUTION = 150;
+ var PRINT_UNITS = PRINT_RESOLUTION / 72.0;
+ canvas.width = Math.floor(size.width * PRINT_UNITS);
+ canvas.height = Math.floor(size.height * PRINT_UNITS);
+ // The physical size of the canvas as specified by the PDF document.
+ canvas.style.width = Math.floor(size.width * CSS_UNITS) + 'px';
+ canvas.style.height = Math.floor(size.height * CSS_UNITS) + 'px';
+ var canvasWrapper = document.createElement('div');
+ canvasWrapper.appendChild(canvas);
+ printContainer.appendChild(canvasWrapper);
+ canvas.mozPrintCallback = function (obj) {
+ // Printing/rendering the page.
+ var ctx = obj.context;
+ ctx.save();
+ ctx.fillStyle = 'rgb(255, 255, 255)';
+ ctx.fillRect(0, 0, canvas.width, canvas.height);
+ ctx.restore();
+ pdfDocument.getPage(pageNumber).then(function (pdfPage) {
+ var renderContext = {
+ canvasContext: ctx,
+ transform: [
+ PRINT_UNITS,
+ 0,
+ 0,
+ PRINT_UNITS,
+ 0,
+ 0
+ ],
+ viewport: pdfPage.getViewport(1),
+ intent: 'print'
+ };
+ return pdfPage.render(renderContext).promise;
+ }).then(function () {
+ // Tell the printEngine that rendering this canvas/page has finished.
+ obj.done();
+ }, function (error) {
+ console.error(error);
+ // Tell the printEngine that rendering this canvas/page has failed.
+ // This will make the print process stop.
+ if ('abort' in obj) {
+ obj.abort();
+ } else {
+ obj.done();
+ }
+ });
+ };
+ }
+ function FirefoxPrintService(pdfDocument, pagesOverview, printContainer) {
+ this.pdfDocument = pdfDocument;
+ this.pagesOverview = pagesOverview;
+ this.printContainer = printContainer;
+ }
+ FirefoxPrintService.prototype = {
+ layout: function () {
+ var pdfDocument = this.pdfDocument;
+ var printContainer = this.printContainer;
+ var body = document.querySelector('body');
+ body.setAttribute('data-pdfjsprinting', true);
+ for (var i = 0, ii = this.pagesOverview.length; i < ii; ++i) {
+ composePage(pdfDocument, i + 1, this.pagesOverview[i], printContainer);
+ }
+ },
+ destroy: function () {
+ this.printContainer.textContent = '';
+ }
+ };
+ PDFPrintServiceFactory.instance = {
+ get supportsPrinting() {
+ var canvas = document.createElement('canvas');
+ var value = 'mozPrintCallback' in canvas;
+ return pdfjsLib.shadow(this, 'supportsPrinting', value);
+ },
+ createPrintService: function (pdfDocument, pagesOverview, printContainer) {
+ return new FirefoxPrintService(pdfDocument, pagesOverview, printContainer);
+ }
+ };
+ exports.FirefoxPrintService = FirefoxPrintService;
+ }));
+ (function (root, factory) {
+ factory(root.pdfjsWebFirefoxCom = {}, root.pdfjsWebPreferences, root.pdfjsWebApp, root.pdfjsWebPDFJS);
+ }(this, function (exports, preferences, app, pdfjsLib) {
+ var Preferences = preferences.Preferences;
+ var PDFViewerApplication = app.PDFViewerApplication;
+ var FirefoxCom = function FirefoxComClosure() {
+ return {
+ /**
+ * Creates an event that the extension is listening for and will
+ * synchronously respond to.
+ * NOTE: It is reccomended to use request() instead since one day we may not
+ * be able to synchronously reply.
+ * @param {String} action The action to trigger.
+ * @param {String} data Optional data to send.
+ * @return {*} The response.
+ */
+ requestSync: function (action, data) {
+ var request = document.createTextNode('');
+ document.documentElement.appendChild(request);
+ var sender = document.createEvent('CustomEvent');
+ sender.initCustomEvent('pdf.js.message', true, false, {
+ action: action,
+ data: data,
+ sync: true
+ });
+ request.dispatchEvent(sender);
+ var response = sender.detail.response;
+ document.documentElement.removeChild(request);
+ return response;
+ },
+ /**
+ * Creates an event that the extension is listening for and will
+ * asynchronously respond by calling the callback.
+ * @param {String} action The action to trigger.
+ * @param {String} data Optional data to send.
+ * @param {Function} callback Optional response callback that will be called
+ * with one data argument.
+ */
+ request: function (action, data, callback) {
+ var request = document.createTextNode('');
+ if (callback) {
+ document.addEventListener('pdf.js.response', function listener(event) {
+ var node = event.target;
+ var response = event.detail.response;
+ document.documentElement.removeChild(node);
+ document.removeEventListener('pdf.js.response', listener, false);
+ return callback(response);
+ }, false);
+ }
+ document.documentElement.appendChild(request);
+ var sender = document.createEvent('CustomEvent');
+ sender.initCustomEvent('pdf.js.message', true, false, {
+ action: action,
+ data: data,
+ sync: false,
+ responseExpected: !!callback
+ });
+ return request.dispatchEvent(sender);
+ }
+ };
+ }();
+ var DownloadManager = function DownloadManagerClosure() {
+ function DownloadManager() {
+ }
+ DownloadManager.prototype = {
+ downloadUrl: function DownloadManager_downloadUrl(url, filename) {
+ FirefoxCom.request('download', {
+ originalUrl: url,
+ filename: filename
+ });
+ },
+ downloadData: function DownloadManager_downloadData(data, filename, contentType) {
+ var blobUrl = pdfjsLib.createObjectURL(data, contentType, false);
+ FirefoxCom.request('download', {
+ blobUrl: blobUrl,
+ originalUrl: blobUrl,
+ filename: filename,
+ isAttachment: true
+ });
+ },
+ download: function DownloadManager_download(blob, url, filename) {
+ var blobUrl = window.URL.createObjectURL(blob);
+ FirefoxCom.request('download', {
+ blobUrl: blobUrl,
+ originalUrl: url,
+ filename: filename
+ }, function response(err) {
+ if (err && this.onerror) {
+ this.onerror(err);
+ }
+ window.URL.revokeObjectURL(blobUrl);
+ }.bind(this));
+ }
+ };
+ return DownloadManager;
+ }();
+ Preferences._writeToStorage = function (prefObj) {
+ return new Promise(function (resolve) {
+ FirefoxCom.request('setPreferences', prefObj, resolve);
+ });
+ };
+ Preferences._readFromStorage = function (prefObj) {
+ return new Promise(function (resolve) {
+ FirefoxCom.request('getPreferences', prefObj, function (prefStr) {
+ var readPrefs = JSON.parse(prefStr);
+ resolve(readPrefs);
+ });
+ });
+ };
+ (function listenFindEvents() {
+ var events = [
+ 'find',
+ 'findagain',
+ 'findhighlightallchange',
+ 'findcasesensitivitychange'
+ ];
+ var handleEvent = function (evt) {
+ if (!PDFViewerApplication.initialized) {
+ return;
+ }
+ PDFViewerApplication.eventBus.dispatch('find', {
+ source: window,
+ type: evt.type.substring('find'.length),
+ query: evt.detail.query,
+ phraseSearch: true,
+ caseSensitive: !!evt.detail.caseSensitive,
+ highlightAll: !!evt.detail.highlightAll,
+ findPrevious: !!evt.detail.findPrevious
+ });
+ }.bind(this);
+ for (var i = 0, len = events.length; i < len; i++) {
+ window.addEventListener(events[i], handleEvent);
+ }
+ }());
+ function FirefoxComDataRangeTransport(length, initialData) {
+ pdfjsLib.PDFDataRangeTransport.call(this, length, initialData);
+ }
+ FirefoxComDataRangeTransport.prototype = Object.create(pdfjsLib.PDFDataRangeTransport.prototype);
+ FirefoxComDataRangeTransport.prototype.requestDataRange = function FirefoxComDataRangeTransport_requestDataRange(begin, end) {
+ FirefoxCom.request('requestDataRange', {
+ begin: begin,
+ end: end
+ });
+ };
+ FirefoxComDataRangeTransport.prototype.abort = function FirefoxComDataRangeTransport_abort() {
+ // Sync call to ensure abort is really started.
+ FirefoxCom.requestSync('abortLoading', null);
+ };
+ PDFViewerApplication.externalServices = {
+ updateFindControlState: function (data) {
+ FirefoxCom.request('updateFindControlState', data);
+ },
+ initPassiveLoading: function (callbacks) {
+ var pdfDataRangeTransport;
+ window.addEventListener('message', function windowMessage(e) {
+ if (e.source !== null) {
+ // The message MUST originate from Chrome code.
+ console.warn('Rejected untrusted message from ' + e.origin);
+ return;
+ }
+ var args = e.data;
+ if (typeof args !== 'object' || !('pdfjsLoadAction' in args)) {
+ return;
+ }
+ switch (args.pdfjsLoadAction) {
+ case 'supportsRangedLoading':
+ pdfDataRangeTransport = new FirefoxComDataRangeTransport(args.length, args.data);
+ callbacks.onOpenWithTransport(args.pdfUrl, args.length, pdfDataRangeTransport);
+ break;
+ case 'range':
+ pdfDataRangeTransport.onDataRange(args.begin, args.chunk);
+ break;
+ case 'rangeProgress':
+ pdfDataRangeTransport.onDataProgress(args.loaded);
+ break;
+ case 'progressiveRead':
+ pdfDataRangeTransport.onDataProgressiveRead(args.chunk);
+ break;
+ case 'progress':
+ callbacks.onProgress(args.loaded, args.total);
+ break;
+ case 'complete':
+ if (!args.data) {
+ callbacks.onError(args.errorCode);
+ break;
+ }
+ callbacks.onOpenWithData(args.data);
+ break;
+ }
+ });
+ FirefoxCom.requestSync('initPassiveLoading', null);
+ },
+ fallback: function (data, callback) {
+ FirefoxCom.request('fallback', data, callback);
+ },
+ reportTelemetry: function (data) {
+ FirefoxCom.request('reportTelemetry', JSON.stringify(data));
+ },
+ createDownloadManager: function () {
+ return new DownloadManager();
+ },
+ get supportsIntegratedFind() {
+ var support = FirefoxCom.requestSync('supportsIntegratedFind');
+ return pdfjsLib.shadow(this, 'supportsIntegratedFind', support);
+ },
+ get supportsDocumentFonts() {
+ var support = FirefoxCom.requestSync('supportsDocumentFonts');
+ return pdfjsLib.shadow(this, 'supportsDocumentFonts', support);
+ },
+ get supportsDocumentColors() {
+ var support = FirefoxCom.requestSync('supportsDocumentColors');
+ return pdfjsLib.shadow(this, 'supportsDocumentColors', support);
+ },
+ get supportedMouseWheelZoomModifierKeys() {
+ var support = FirefoxCom.requestSync('supportedMouseWheelZoomModifierKeys');
+ return pdfjsLib.shadow(this, 'supportedMouseWheelZoomModifierKeys', support);
+ }
+ };
+ //// l10n.js for Firefox extension expects services to be set.
+ document.mozL10n.setExternalLocalizerServices({
+ getLocale: function () {
+ return FirefoxCom.requestSync('getLocale', null);
+ },
+ getStrings: function (key) {
+ return FirefoxCom.requestSync('getStrings', key);
+ }
+ });
+ exports.DownloadManager = DownloadManager;
+ exports.FirefoxCom = FirefoxCom;
+ }));
+ }.call(pdfjsWebLibs));
+}
+{
+ // FIXME the l10n.js file in the Firefox extension needs global FirefoxCom.
+ window.FirefoxCom = pdfjsWebLibs.pdfjsWebFirefoxCom.FirefoxCom;
+}
+function getViewerConfiguration() {
+ return {
+ appContainer: document.body,
+ mainContainer: document.getElementById('viewerContainer'),
+ viewerContainer: document.getElementById('viewer'),
+ eventBus: null,
+ // using global event bus with DOM events
+ toolbar: {
+ container: document.getElementById('toolbarViewer'),
+ numPages: document.getElementById('numPages'),
+ pageNumber: document.getElementById('pageNumber'),
+ scaleSelectContainer: document.getElementById('scaleSelectContainer'),
+ scaleSelect: document.getElementById('scaleSelect'),
+ customScaleOption: document.getElementById('customScaleOption'),
+ previous: document.getElementById('previous'),
+ next: document.getElementById('next'),
+ firstPage: document.getElementById('firstPage'),
+ lastPage: document.getElementById('lastPage'),
+ zoomIn: document.getElementById('zoomIn'),
+ zoomOut: document.getElementById('zoomOut'),
+ viewFind: document.getElementById('viewFind'),
+ openFile: document.getElementById('openFile'),
+ print: document.getElementById('print'),
+ presentationModeButton: document.getElementById('presentationMode'),
+ download: document.getElementById('download'),
+ viewBookmark: document.getElementById('viewBookmark')
+ },
+ secondaryToolbar: {
+ toolbar: document.getElementById('secondaryToolbar'),
+ toggleButton: document.getElementById('secondaryToolbarToggle'),
+ toolbarButtonContainer: document.getElementById('secondaryToolbarButtonContainer'),
+ presentationModeButton: document.getElementById('secondaryPresentationMode'),
+ openFileButton: document.getElementById('secondaryOpenFile'),
+ printButton: document.getElementById('secondaryPrint'),
+ downloadButton: document.getElementById('secondaryDownload'),
+ viewBookmarkButton: document.getElementById('secondaryViewBookmark'),
+ firstPageButton: document.getElementById('firstPage'),
+ lastPageButton: document.getElementById('lastPage'),
+ pageRotateCwButton: document.getElementById('pageRotateCw'),
+ pageRotateCcwButton: document.getElementById('pageRotateCcw'),
+ toggleHandToolButton: document.getElementById('toggleHandTool'),
+ documentPropertiesButton: document.getElementById('documentProperties')
+ },
+ fullscreen: {
+ contextFirstPage: document.getElementById('contextFirstPage'),
+ contextLastPage: document.getElementById('contextLastPage'),
+ contextPageRotateCw: document.getElementById('contextPageRotateCw'),
+ contextPageRotateCcw: document.getElementById('contextPageRotateCcw')
+ },
+ sidebar: {
+ // Divs (and sidebar button)
+ mainContainer: document.getElementById('mainContainer'),
+ outerContainer: document.getElementById('outerContainer'),
+ toggleButton: document.getElementById('sidebarToggle'),
+ // Buttons
+ thumbnailButton: document.getElementById('viewThumbnail'),
+ outlineButton: document.getElementById('viewOutline'),
+ attachmentsButton: document.getElementById('viewAttachments'),
+ // Views
+ thumbnailView: document.getElementById('thumbnailView'),
+ outlineView: document.getElementById('outlineView'),
+ attachmentsView: document.getElementById('attachmentsView')
+ },
+ findBar: {
+ bar: document.getElementById('findbar'),
+ toggleButton: document.getElementById('viewFind'),
+ findField: document.getElementById('findInput'),
+ highlightAllCheckbox: document.getElementById('findHighlightAll'),
+ caseSensitiveCheckbox: document.getElementById('findMatchCase'),
+ findMsg: document.getElementById('findMsg'),
+ findResultsCount: document.getElementById('findResultsCount'),
+ findStatusIcon: document.getElementById('findStatusIcon'),
+ findPreviousButton: document.getElementById('findPrevious'),
+ findNextButton: document.getElementById('findNext')
+ },
+ passwordOverlay: {
+ overlayName: 'passwordOverlay',
+ container: document.getElementById('passwordOverlay'),
+ label: document.getElementById('passwordText'),
+ input: document.getElementById('password'),
+ submitButton: document.getElementById('passwordSubmit'),
+ cancelButton: document.getElementById('passwordCancel')
+ },
+ documentProperties: {
+ overlayName: 'documentPropertiesOverlay',
+ container: document.getElementById('documentPropertiesOverlay'),
+ closeButton: document.getElementById('documentPropertiesClose'),
+ fields: {
+ 'fileName': document.getElementById('fileNameField'),
+ 'fileSize': document.getElementById('fileSizeField'),
+ 'title': document.getElementById('titleField'),
+ 'author': document.getElementById('authorField'),
+ 'subject': document.getElementById('subjectField'),
+ 'keywords': document.getElementById('keywordsField'),
+ 'creationDate': document.getElementById('creationDateField'),
+ 'modificationDate': document.getElementById('modificationDateField'),
+ 'creator': document.getElementById('creatorField'),
+ 'producer': document.getElementById('producerField'),
+ 'version': document.getElementById('versionField'),
+ 'pageCount': document.getElementById('pageCountField')
+ }
+ },
+ errorWrapper: {
+ container: document.getElementById('errorWrapper'),
+ errorMessage: document.getElementById('errorMessage'),
+ closeButton: document.getElementById('errorClose'),
+ errorMoreInfo: document.getElementById('errorMoreInfo'),
+ moreInfoButton: document.getElementById('errorShowMore'),
+ lessInfoButton: document.getElementById('errorShowLess')
+ },
+ printContainer: document.getElementById('printContainer'),
+ openFileInputName: 'fileInput',
+ debuggerScriptPath: './debugger.js'
+ };
+}
+function webViewerLoad() {
+ var config = getViewerConfiguration();
+ window.PDFViewerApplication = pdfjsWebLibs.pdfjsWebApp.PDFViewerApplication;
+ pdfjsWebLibs.pdfjsWebApp.PDFViewerApplication.run(config);
+}
+document.addEventListener('DOMContentLoaded', webViewerLoad, true); \ No newline at end of file