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Diffstat (limited to 'application/basilisk/extensions/pdfjs/content/web/viewer.js')
| -rw-r--r-- | application/basilisk/extensions/pdfjs/content/web/viewer.js | 8671 |
1 files changed, 0 insertions, 8671 deletions
diff --git a/application/basilisk/extensions/pdfjs/content/web/viewer.js b/application/basilisk/extensions/pdfjs/content/web/viewer.js deleted file mode 100644 index 35fef2cd0..000000000 --- a/application/basilisk/extensions/pdfjs/content/web/viewer.js +++ /dev/null @@ -1,8671 +0,0 @@ -/* 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);
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