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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