/* 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);