/* 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. */ /*globals require, chrome */ 'use strict'; //var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf'; var 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 { /* jshint expr:true */ 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(); this.document.documentElement.classList.add(this.CSS_CLASS_GRABBING); 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; this.element.scrollTop = this.scrollTopStart - yDiff; this.element.scrollLeft = this.scrollLeftStart - xDiff; 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.pdfjsWebMozPrintCallbackPolyfill = {})); } }(this, function (exports) { if ('mozPrintCallback' in document.createElement('canvas')) { return; } // Cause positive result on feature-detection: HTMLCanvasElement.prototype.mozPrintCallback = undefined; var canvases; // During print task: non-live NodeList of elements var index; // Index of element that is being processed var print = window.print; window.print = function print() { if (canvases) { console.warn('Ignored window.print() because of a pending print job.'); return; } try { dispatchEvent('beforeprint'); } finally { canvases = document.querySelectorAll('canvas'); index = -1; next(); } }; function dispatchEvent(eventType) { var event = document.createEvent('CustomEvent'); event.initCustomEvent(eventType, false, false, 'custom'); window.dispatchEvent(event); } function next() { if (!canvases) { return; // Print task cancelled by user (state reset in abort()) } renderProgress(); if (++index < canvases.length) { var canvas = canvases[index]; if (typeof canvas.mozPrintCallback === 'function') { canvas.mozPrintCallback({ context: canvas.getContext('2d'), abort: abort, done: next }); } else { next(); } } else { renderProgress(); print.call(window); setTimeout(abort, 20); // Tidy-up } } function abort() { if (canvases) { canvases = null; renderProgress(); dispatchEvent('afterprint'); } } function renderProgress() { var progressContainer = document.getElementById('mozPrintCallback-shim'); if (canvases && canvases.length) { var progress = Math.round(100 * index / canvases.length); var progressBar = progressContainer.querySelector('progress'); var progressPerc = progressContainer.querySelector('.relative-progress'); progressBar.value = progress; progressPerc.textContent = progress + '%'; progressContainer.removeAttribute('hidden'); progressContainer.onclick = abort; } else { progressContainer.setAttribute('hidden', ''); } } var hasAttachEvent = !!document.attachEvent; window.addEventListener('keydown', function(event) { // Intercept Cmd/Ctrl + P in all browsers. // Also intercept Cmd/Ctrl + Shift + P in Chrome and Opera if (event.keyCode === 80/*P*/ && (event.ctrlKey || event.metaKey) && !event.altKey && (!event.shiftKey || window.chrome || window.opera)) { window.print(); if (hasAttachEvent) { // Only attachEvent can cancel Ctrl + P dialog in IE <=10 // attachEvent is gone in IE11, so the dialog will re-appear in IE11. return; } event.preventDefault(); if (event.stopImmediatePropagation) { event.stopImmediatePropagation(); } else { event.stopPropagation(); } return; } if (event.keyCode === 27 && canvases) { // Esc abort(); } }, true); if (hasAttachEvent) { document.attachEvent('onkeydown', function(event) { event = event || window.event; if (event.keyCode === 80/*P*/ && event.ctrlKey) { event.keyCode = 0; return false; } }); } if ('onbeforeprint' in window) { // Do not propagate before/afterprint events when they are not triggered // from within this polyfill. (FF/IE). var stopPropagationIfNeeded = function(event) { if (event.detail !== 'custom' && event.stopImmediatePropagation) { event.stopImmediatePropagation(); } }; window.addEventListener('beforeprint', stopPropagationIfNeeded, false); window.addEventListener('afterprint', stopPropagationIfNeeded, false); } })); (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.pdfjsWebPDFHistory = {})); } }(this, function (exports) { function PDFHistory(options) { this.linkService = options.linkService; this.initialized = false; this.initialDestination = null; this.initialBookmark = null; } PDFHistory.prototype = { /** * @param {string} fingerprint * @param {IPDFLinkService} linkService */ 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); window.addEventListener('presentationmodechanged', function(e) { self.isViewerInPresentationMode = !!e.detail.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, '', document.URL); } else { window.history.pushState(stateObj, '', document.URL); } }, 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.pdfjsWebPDFPresentationMode = {})); } }(this, function (exports) { 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 {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; var contextMenuItems = options.contextMenuItems || null; this.active = false; this.args = null; this.contextMenuOpen = false; this.mouseScrollTimeStamp = 0; this.mouseScrollDelta = 0; if (contextMenuItems) { for (var i = 0, ii = contextMenuItems.length; i < ii; i++) { var item = contextMenuItems[i]; item.element.addEventListener('click', function (handler) { this.contextMenuOpen = false; handler(); }.bind(this, item.handler)); } } } 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; }, /** * Switches page when the user scrolls (using a scroll wheel or a touchpad) * with large enough motion, to prevent accidental page switches. * @param {number} delta - The delta value from the mouse event. */ mouseScroll: function PDFPresentationMode_mouseScroll(delta) { if (!this.active) { return; } var MOUSE_SCROLL_COOLDOWN_TIME = 50; var PAGE_SWITCH_THRESHOLD = 120; var PageSwitchDirection = { UP: -1, DOWN: 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 pageSwitchDirection = (this.mouseScrollDelta > 0) ? PageSwitchDirection.UP : PageSwitchDirection.DOWN; var page = this.pdfViewer.currentPageNumber; this._resetMouseScrollState(); // If we're at the first/last page, we don't need to do anything. if ((page === 1 && pageSwitchDirection === PageSwitchDirection.UP) || (page === this.pdfViewer.pagesCount && pageSwitchDirection === PageSwitchDirection.DOWN)) { return; } this.pdfViewer.currentPageNumber = (page + pageSwitchDirection); this.mouseScrollTimeStamp = currentTime; } }, get isFullscreen() { return !!(document.fullscreenElement || document.mozFullScreen || document.webkitIsFullScreen || document.msFullscreenElement); }, /** * @private */ _notifyStateChange: function PDFPresentationMode_notifyStateChange() { var event = document.createEvent('CustomEvent'); event.initCustomEvent('presentationmodechanged', true, true, { active: this.active, switchInProgress: !!this.switchInProgress }); window.dispatchEvent(event); }, /** * 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 */ _addWindowListeners: function PDFPresentationMode_addWindowListeners() { this.showControlsBind = this._showControls.bind(this); this.mouseDownBind = this._mouseDown.bind(this); this.resetMouseScrollStateBind = this._resetMouseScrollState.bind(this); this.contextMenuBind = this._contextMenu.bind(this); window.addEventListener('mousemove', this.showControlsBind); window.addEventListener('mousedown', this.mouseDownBind); window.addEventListener('keydown', this.resetMouseScrollStateBind); window.addEventListener('contextmenu', this.contextMenuBind); }, /** * @private */ _removeWindowListeners: function PDFPresentationMode_removeWindowListeners() { window.removeEventListener('mousemove', this.showControlsBind); window.removeEventListener('mousedown', this.mouseDownBind); window.removeEventListener('keydown', this.resetMouseScrollStateBind); window.removeEventListener('contextmenu', this.contextMenuBind); delete this.showControlsBind; delete this.mouseDownBind; delete this.resetMouseScrollStateBind; delete this.contextMenuBind; }, /** * @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); window.addEventListener('webkitfullscreenchange', this.fullscreenChangeBind); window.addEventListener('MSFullscreenChange', this.fullscreenChangeBind); }, /** * @private */ _removeFullscreenChangeListeners: function PDFPresentationMode_removeFullscreenChangeListeners() { window.removeEventListener('fullscreenchange', this.fullscreenChangeBind); window.removeEventListener('mozfullscreenchange', this.fullscreenChangeBind); window.removeEventListener('webkitfullscreenchange', this.fullscreenChangeBind); window.removeEventListener('MSFullscreenChange', this.fullscreenChangeBind); delete this.fullscreenChangeBind; } }; return PDFPresentationMode; })(); exports.PDFPresentationMode = PDFPresentationMode; })); (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 DEFAULT_PREFERENCES = { 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, }; /** * 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: Object.create(DEFAULT_PREFERENCES), 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 = this._readFromStorage(DEFAULT_PREFERENCES).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 = Object.create(DEFAULT_PREFERENCES); return this._writeToStorage(DEFAULT_PREFERENCES); }.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(DEFAULT_PREFERENCES).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 (DEFAULT_PREFERENCES[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 DEFAULT_PREFERENCES[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 = DEFAULT_PREFERENCES[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)); } }; Preferences._writeToStorage = function (prefObj) { return new Promise(function (resolve) { localStorage.setItem('pdfjs.preferences', JSON.stringify(prefObj)); resolve(); }); }; Preferences._readFromStorage = function (prefObj) { return new Promise(function (resolve) { var readPrefs = JSON.parse(localStorage.getItem('pdfjs.preferences')); resolve(readPrefs); }); }; 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 ' 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); localStorage.setItem('database', databaseStr); resolve(); }.bind(this)); }, _readFromStorage: function ViewHistory_readFromStorage() { return new Promise(function (resolve) { resolve(localStorage.getItem('database')); }); }, 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 download(blobUrl, filename) { var a = document.createElement('a'); if (a.click) { // Use a.click() if available. Otherwise, Chrome might show // "Unsafe JavaScript attempt to initiate a navigation change // for frame with URL" and not open the PDF at all. // Supported by (not mentioned = untested): // - Firefox 6 - 19 (4- does not support a.click, 5 ignores a.click) // - Chrome 19 - 26 (18- does not support a.click) // - Opera 9 - 12.15 // - Internet Explorer 6 - 10 // - Safari 6 (5.1- does not support a.click) a.href = blobUrl; a.target = '_parent'; // Use a.download if available. This increases the likelihood that // the file is downloaded instead of opened by another PDF plugin. if ('download' in a) { a.download = filename; } // must be in the document for IE and recent Firefox versions. // (otherwise .click() is ignored) (document.body || document.documentElement).appendChild(a); a.click(); a.parentNode.removeChild(a); } else { if (window.top === window && blobUrl.split('#')[0] === window.location.href.split('#')[0]) { // If _parent == self, then opening an identical URL with different // location hash will only cause a navigation, not a download. var padCharacter = blobUrl.indexOf('?') === -1 ? '?' : '&'; blobUrl = blobUrl.replace(/#|$/, padCharacter + '$&'); } window.open(blobUrl, '_parent'); } } function DownloadManager() {} DownloadManager.prototype = { downloadUrl: function DownloadManager_downloadUrl(url, filename) { if (!pdfjsLib.isValidUrl(url, true)) { return; // restricted/invalid URL } download(url + '#pdfjs.action=download', filename); }, downloadData: function DownloadManager_downloadData(data, filename, contentType) { if (navigator.msSaveBlob) { // IE10 and above return navigator.msSaveBlob(new Blob([data], { type: contentType }), filename); } var blobUrl = pdfjsLib.createObjectURL(data, contentType, pdfjsLib.PDFJS.disableCreateObjectURL); download(blobUrl, filename); }, download: function DownloadManager_download(blob, url, filename) { if (!URL) { // URL.createObjectURL is not supported this.downloadUrl(url, filename); return; } if (navigator.msSaveBlob) { // IE10 / IE11 if (!navigator.msSaveBlob(blob, filename)) { this.downloadUrl(url, filename); } return; } var blobUrl = URL.createObjectURL(blob); download(blobUrl, filename); } }; exports.DownloadManager = DownloadManager; })); (function (root, factory) { { factory((root.pdfjsWebFirefoxCom = {}), root.pdfjsWebPreferences, root.pdfjsWebPDFJS); } }(this, function (exports, preferences, pdfjsLib) { })); (function (root, factory) { { factory((root.pdfjsWebPDFAttachmentViewer = {}), root.pdfjsWebPDFJS); } }(this, function (exports, pdfjsLib) { /** * @typedef {Object} PDFAttachmentViewerOptions * @property {HTMLDivElement} container - The viewer element. * @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.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) { var event = document.createEvent('CustomEvent'); event.initCustomEvent('attachmentsloaded', true, true, { attachmentsCount: attachmentsCount }); this.container.dispatchEvent(event); }, /** * @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 DEFAULT_TITLE = '\u2013'; /** * @typedef {Object} PDFOutlineViewerOptions * @property {HTMLDivElement} container - The viewer element. * @property {IPDFLinkService} linkService - The navigation/linking service. */ /** * @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; } 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) { var event = document.createEvent('CustomEvent'); event.initCustomEvent('outlineloaded', true, true, { outlineCount: outlineCount }); this.container.dispatchEvent(event); }, /** * @private */ _bindLink: function PDFOutlineViewer_bindLink(element, item) { if (item.url) { pdfjsLib.addLinkAttributes(element, { url: item.url }); return; } var linkService = this.linkService; element.href = linkService.getDestinationHash(item.dest); element.onclick = function goToDestination(e) { linkService.navigateTo(item.dest); 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} state - 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 {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.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() { var event = document.createEvent('CustomEvent'); event.initCustomEvent('sidebarviewchanged', true, true, { view: this.visibleView, }); this.outerContainer.dispatchEvent(event); }, /** * @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.outlineView.addEventListener('outlineloaded', function(evt) { var outlineCount = evt.detail.outlineCount; self.outlineButton.disabled = !outlineCount; if (!outlineCount && self.active === SidebarView.OUTLINE) { self.switchView(SidebarView.THUMBS); } }); self.attachmentsView.addEventListener('attachmentsloaded', function(evt) { var attachmentsCount = evt.detail.attachmentsCount; self.attachmentsButton.disabled = !attachmentsCount; if (!attachmentsCount && self.active === SidebarView.ATTACHMENTS) { self.switchView(SidebarView.THUMBS); } }); // Update the thumbnailViewer, if visible, when exiting presentation mode. window.addEventListener('presentationmodechanged', function(evt) { if (!evt.detail.active && !evt.detail.switchInProgress && self.isThumbnailViewVisible) { self._updateThumbnailViewer(); } }); }, }; return PDFSidebar; })(); exports.SidebarView = SidebarView; exports.PDFSidebar = PDFSidebar; })); (function (root, factory) { { factory((root.pdfjsWebTextLayerBuilder = {}), root.pdfjsWebPDFJS); } }(this, function (exports, pdfjsLib) { /** * @typedef {Object} TextLayerBuilderOptions * @property {HTMLDivElement} textLayerDiv - The text layer container. * @property {number} pageIndex - The page index. * @property {PageViewport} viewport - The viewport of the text layer. * @property {PDFFindController} findController */ /** * 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.renderingDone = false; this.divContentDone = 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._bindMouse(); } TextLayerBuilder.prototype = { _finishRendering: function TextLayerBuilder_finishRendering() { this.renderingDone = true; var endOfContent = document.createElement('div'); endOfContent.className = 'endOfContent'; this.textLayerDiv.appendChild(endOfContent); var event = document.createEvent('CustomEvent'); event.initCustomEvent('textlayerrendered', true, true, { pageNumber: this.pageNumber }); this.textLayerDiv.dispatchEvent(event); }, /** * 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.divContentDone || this.renderingDone) { return; } if (this.textLayerRenderTask) { this.textLayerRenderTask.cancel(); this.textLayerRenderTask = null; } this.textDivs = []; var textLayerFrag = document.createDocumentFragment(); this.textLayerRenderTask = pdfjsLib.renderTextLayer({ textContent: this.textContent, container: textLayerFrag, viewport: this.viewport, textDivs: this.textDivs, timeout: timeout }); this.textLayerRenderTask.promise.then(function () { this.textLayerDiv.appendChild(textLayerFrag); this._finishRendering(); this.updateMatches(); }.bind(this), function (reason) { // canceled or failed to render text layer -- skipping errors }); }, setTextContent: function TextLayerBuilder_setTextContent(textContent) { if (this.textLayerRenderTask) { this.textLayerRenderTask.cancel(); this.textLayerRenderTask = null; } this.textContent = textContent; this.divContentDone = true; }, convertMatches: function TextLayerBuilder_convertMatches(matches) { 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 = []; 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. 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, end.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. this.matches = this.convertMatches(this.findController === null ? [] : (this.findController.pageMatches[this.pageIdx] || [])); 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; div.addEventListener('mousedown', function (e) { var end = div.querySelector('.endOfContent'); if (!end) { return; } // On non-Firefox browsers, the selection will feel better if the height // of the endOfContent div will be adjusted to start at mouse click // location -- this will avoid flickering when selections moves up. // However it does not work when selection started on empty space. var adjustTop = e.target !== div; adjustTop = adjustTop && window.getComputedStyle(end). getPropertyValue('-moz-user-select') !== 'none'; if (adjustTop) { var divBounds = div.getBoundingClientRect(); var r = Math.max(0, (e.pageY - divBounds.top) / divBounds.height); end.style.top = (r * 100).toFixed(2) + '%'; } end.classList.add('active'); }); div.addEventListener('mouseup', function (e) { var end = div.querySelector('.endOfContent'); if (!end) { return; } end.style.top = ''; end.classList.remove('active'); }); }, }; return TextLayerBuilder; })(); /** * @constructor * @implements IPDFTextLayerFactory */ function DefaultTextLayerFactory() {} DefaultTextLayerFactory.prototype = { /** * @param {HTMLDivElement} textLayerDiv * @param {number} pageIndex * @param {PageViewport} viewport * @returns {TextLayerBuilder} */ createTextLayerBuilder: function (textLayerDiv, pageIndex, viewport) { return new TextLayerBuilder({ textLayerDiv: textLayerDiv, pageIndex: pageIndex, viewport: viewport }); } }; exports.TextLayerBuilder = TextLayerBuilder; exports.DefaultTextLayerFactory = DefaultTextLayerFactory; })); (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); /** * Interface locale settings. * @var {string} */ PDFJS.locale = (PDFJS.locale === undefined ? navigator.language : PDFJS.locale); /** * 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) { // Possible (extremely rare) errors: // URIError "Malformed URI", e.g. for "%AA.pdf" // TypeError "null has no properties", e.g. for "%2F.pdf" } } } return suggestedFilename || 'document.pdf'; } 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.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; })); (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, root.pdfjsWebFirefoxCom); } }(this, function (exports, uiUtils, firefoxCom) { var scrollIntoView = uiUtils.scrollIntoView; var FirefoxCom = firefoxCom.FirefoxCom; 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.integratedFind = options.integratedFind || false; this.findBar = options.findBar || 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'); var events = [ 'find', 'findagain', 'findhighlightallchange', 'findcasesensitivitychange' ]; this.handleEvent = this.handleEvent.bind(this); for (var i = 0, len = events.length; i < len; i++) { window.addEventListener(events[i], this.handleEvent); } } PDFFindController.prototype = { setFindBar: function PDFFindController_setFindBar(findBar) { this.findBar = findBar; }, 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.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]; }); }, 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 queryLen = query.length; if (queryLen === 0) { // Do nothing: the matches should be wiped out already. return; } if (!caseSensitive) { pageContent = pageContent.toLowerCase(); query = query.toLowerCase(); } var matches = []; var matchIdx = -queryLen; while (true) { matchIdx = pageContent.indexOf(query, matchIdx + queryLen); if (matchIdx === -1) { break; } matches.push(matchIdx); } this.pageMatches[pageIndex] = matches; this.updatePage(pageIndex); if (this.resumePageIdx === pageIndex) { this.resumePageIdx = null; this.nextPageMatch(); } // Update the matches count if (matches.length > 0) { this.matchCount += matches.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); }, handleEvent: function PDFFindController_handleEvent(e) { if (this.state === null || e.type !== 'findagain') { this.dirtyMatch = true; } this.state = e.detail; this.updateUIState(FindStates.FIND_PENDING); this.firstPagePromise.then(function() { this.extractText(); clearTimeout(this.findTimeout); if (e.type === '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.scrollPageIntoView(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; 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. * @param {number} endIdx - end index of the div array for the match. */ updateMatchPosition: function PDFFindController_updateMatchPosition( pageIndex, index, elements, beginIdx, endIdx) { 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.findBar === null) { throw new Error('PDFFindController is not initialized with a ' + 'PDFFindBar instance.'); } this.findBar.updateResultsCount(this.matchCount); }, updateUIState: function PDFFindController_updateUIState(state, previous) { if (this.integratedFind) { FirefoxCom.request('updateFindControlState', { result: state, findPrevious: previous }); return; } if (this.findBar === null) { throw new Error('PDFFindController is not initialized with a ' + 'PDFFindBar instance.'); } this.findBar.updateUIState(state, previous, this.matchCount); } }; return PDFFindController; })(); exports.FindStates = FindStates; exports.PDFFindController = PDFFindController; })); (function (root, factory) { { factory((root.pdfjsWebPDFLinkService = {}), root.pdfjsWebUIUtils); } }(this, function (exports, uiUtils) { var parseQueryString = uiUtils.parseQueryString; /** * Performs navigation functions inside PDF, such as opening specified page, * or destination. * @class * @implements {IPDFLinkService} */ var PDFLinkService = (function () { /** * @constructs PDFLinkService */ function PDFLinkService() { 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.numPages; }, /** * @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: var pageNumber = destRef instanceof Object ? self._pagesRefCache[destRef.num + ' ' + destRef.gen + ' R'] : (destRef + 1); if (pageNumber) { if (pageNumber > self.pagesCount) { pageNumber = self.pagesCount; } self.pdfViewer.scrollPageIntoView(pageNumber, 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) { var pageNum = pageIndex + 1; var cacheKey = destRef.num + ' ' + destRef.gen + ' R'; self._pagesRefCache[cacheKey] = pageNum; goToDestination(destRef); }); } }; 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)) { return; // invalid destination } 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') { return this.getAnchorUrl('#' + escape(dest)); } if (dest instanceof Array) { var destRef = dest[0]; // see navigateTo method for dest format var pageNumber = destRef instanceof Object ? this._pagesRefCache[destRef.num + ' ' + destRef.gen + ' R'] : (destRef + 1); if (pageNumber) { var pdfOpenParams = this.getAnchorUrl('#page=' + pageNumber); var destKind = dest[1]; if (typeof destKind === 'object' && 'name' in destKind && destKind.name === 'XYZ') { var scale = (dest[4] || this.pdfViewer.currentScaleValue); var scaleNumber = parseFloat(scale); if (scaleNumber) { scale = scaleNumber * 100; } pdfOpenParams += '&zoom=' + scale; if (dest[2] || dest[3]) { pdfOpenParams += ',' + (dest[2] || 0) + ',' + (dest[3] || 0); } } return pdfOpenParams; } } 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 . * @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) { if (hash.indexOf('=') >= 0) { var params = parseQueryString(hash); // 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; } var pageNumber, dest; 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 || this.page, dest); } else if (pageNumber) { this.page = pageNumber; // simple page } if ('pagemode' in params) { var event = document.createEvent('CustomEvent'); event.initCustomEvent('pagemode', true, true, { mode: params.pagemode, }); this.pdfViewer.container.dispatchEvent(event); } } else if (/^\d+$/.test(hash)) { // page number this.page = hash; } else { // named destination if (this.pdfHistory) { this.pdfHistory.updateNextHashParam(unescape(hash)); } this.navigateTo(unescape(hash)); } }, /** * @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': this.page++; break; case 'PrevPage': this.page--; break; case 'LastPage': this.page = this.pagesCount; break; case 'FirstPage': this.page = 1; break; default: break; // No action according to spec } var event = document.createEvent('CustomEvent'); event.initCustomEvent('namedaction', true, true, { action: action }); this.pdfViewer.container.dispatchEvent(event); }, /** * @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; } }; 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.pdfjsWebPDFJS); } }(this, function (exports, uiUtils, pdfRenderingQueue, 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 {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 */ /** * @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; this.id = id; this.renderingId = 'page' + id; this.rotation = 0; this.scale = scale || DEFAULT_SCALE; this.viewport = defaultViewport; this.pdfPageRotate = defaultViewport.rotation; this.hasRestrictedScaling = false; this.renderingQueue = renderingQueue; this.textLayerFactory = textLayerFactory; this.annotationLayerFactory = annotationLayerFactory; 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) { if (this.renderTask) { this.renderTask.cancel(); } this.resume = null; this.renderingState = RenderingStates.INITIAL; 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; var pixelsInViewport = this.viewport.width * this.viewport.height; 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); var event = document.createEvent('CustomEvent'); event.initCustomEvent('pagerendered', true, true, { pageNumber: this.id, cssTransform: true, }); this.div.dispatchEvent(event); 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); }, /** * 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.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.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; div.removeChild(self.zoomLayer); self.zoomLayer = null; } self.error = error; self.stats = pdfPage.stats; if (self.onAfterDraw) { self.onAfterDraw(); } var event = document.createEvent('CustomEvent'); event.initCustomEvent('pagerendered', true, true, { pageNumber: self.id, cssTransform: false, }); div.dispatchEvent(event); 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, // 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.annotationLayer.render(this.viewport, 'display'); } div.setAttribute('data-loaded', true); if (self.onBeforeDraw) { self.onBeforeDraw(); } return promise; }, beforePrint: function PDFPageView_beforePrint(printContainer) { var CustomStyle = pdfjsLib.CustomStyle; var pdfPage = this.pdfPage; var viewport = pdfPage.getViewport(1); // Use the same hack we use for high dpi displays for printing to get // better output until bug 811002 is fixed in FF. var PRINT_OUTPUT_SCALE = 2; var canvas = document.createElement('canvas'); // The logical size of the canvas. canvas.width = Math.floor(viewport.width) * PRINT_OUTPUT_SCALE; canvas.height = Math.floor(viewport.height) * PRINT_OUTPUT_SCALE; // The rendered size of the canvas, relative to the size of canvasWrapper. canvas.style.width = (PRINT_OUTPUT_SCALE * 100) + '%'; var cssScale = 'scale(' + (1 / PRINT_OUTPUT_SCALE) + ', ' + (1 / PRINT_OUTPUT_SCALE) + ')'; CustomStyle.setProp('transform' , canvas, cssScale); CustomStyle.setProp('transformOrigin' , canvas, '0% 0%'); var canvasWrapper = document.createElement('div'); canvasWrapper.appendChild(canvas); printContainer.appendChild(canvasWrapper); canvas.mozPrintCallback = function(obj) { var ctx = obj.context; ctx.save(); ctx.fillStyle = 'rgb(255, 255, 255)'; ctx.fillRect(0, 0, canvas.width, canvas.height); ctx.restore(); // Used by the mozCurrentTransform polyfill in src/display/canvas.js. ctx._transformMatrix = [PRINT_OUTPUT_SCALE, 0, 0, PRINT_OUTPUT_SCALE, 0, 0]; ctx.scale(PRINT_OUTPUT_SCALE, PRINT_OUTPUT_SCALE); var renderContext = { canvasContext: ctx, viewport: viewport, intent: 'print' }; 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 proces stop. if ('abort' in obj) { obj.abort(); } else { obj.done(); } }); }; }, }; return PDFPageView; })(); exports.PDFPageView = PDFPageView; })); (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; // Since this is a temporary canvas, we need to fill the canvas with a white // background ourselves. `_getPageDrawContext` uses CSS rules for this. 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.pdfPage = null; this.rotation = 0; this.viewport = defaultViewport; this.pdfPageRotate = defaultViewport.rotation; this.linkService = linkService; this.renderingQueue = renderingQueue; this.resume = null; this.renderingState = RenderingStates.INITIAL; 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; }; 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() { if (this.renderTask) { this.renderTask.cancel(); } this.resume = null; this.renderingState = RenderingStates.INITIAL; 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(); }, /** * @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.id }, '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(); } }; 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 app; // Avoiding circular reference, see _setApp function below. var PDFViewerApplication = null; // = app.PDFViewerApplication; var SecondaryToolbar = { opened: false, previousContainerHeight: null, newContainerHeight: null, initialize: function secondaryToolbarInitialize(options) { this.toolbar = options.toolbar; this.buttonContainer = this.toolbar.firstElementChild; // Define the toolbar buttons. this.toggleButton = options.toggleButton; this.presentationModeButton = options.presentationModeButton; this.openFile = options.openFile; this.print = options.print; this.download = options.download; this.viewBookmark = options.viewBookmark; this.firstPage = options.firstPage; this.lastPage = options.lastPage; this.pageRotateCw = options.pageRotateCw; this.pageRotateCcw = options.pageRotateCcw; this.documentPropertiesButton = options.documentPropertiesButton; // Attach the event listeners. var elements = [ // Button to toggle the visibility of the secondary toolbar: { element: this.toggleButton, handler: this.toggle }, // All items within the secondary toolbar // (except for toggleHandTool, hand_tool.js is responsible for it): { element: this.presentationModeButton, handler: this.presentationModeClick }, { element: this.openFile, handler: this.openFileClick }, { element: this.print, handler: this.printClick }, { element: this.download, handler: this.downloadClick }, { element: this.viewBookmark, handler: this.viewBookmarkClick }, { element: this.firstPage, handler: this.firstPageClick }, { element: this.lastPage, handler: this.lastPageClick }, { element: this.pageRotateCw, handler: this.pageRotateCwClick }, { element: this.pageRotateCcw, handler: this.pageRotateCcwClick }, { element: this.documentPropertiesButton, handler: this.documentPropertiesClick } ]; for (var item in elements) { var element = elements[item].element; if (element) { element.addEventListener('click', elements[item].handler.bind(this)); } } }, // Event handling functions. presentationModeClick: function secondaryToolbarPresentationModeClick(evt) { PDFViewerApplication.requestPresentationMode(); this.close(); }, openFileClick: function secondaryToolbarOpenFileClick(evt) { var openFileInputName = PDFViewerApplication.appConfig.openFileInputName; document.getElementById(openFileInputName).click(); this.close(); }, printClick: function secondaryToolbarPrintClick(evt) { window.print(); this.close(); }, downloadClick: function secondaryToolbarDownloadClick(evt) { PDFViewerApplication.download(); this.close(); }, viewBookmarkClick: function secondaryToolbarViewBookmarkClick(evt) { this.close(); }, firstPageClick: function secondaryToolbarFirstPageClick(evt) { PDFViewerApplication.page = 1; this.close(); }, lastPageClick: function secondaryToolbarLastPageClick(evt) { if (PDFViewerApplication.pdfDocument) { PDFViewerApplication.page = PDFViewerApplication.pagesCount; } this.close(); }, pageRotateCwClick: function secondaryToolbarPageRotateCwClick(evt) { PDFViewerApplication.rotatePages(90); }, pageRotateCcwClick: function secondaryToolbarPageRotateCcwClick(evt) { PDFViewerApplication.rotatePages(-90); }, documentPropertiesClick: function secondaryToolbarDocumentPropsClick(evt) { PDFViewerApplication.pdfDocumentProperties.open(); this.close(); }, // Misc. functions for interacting with the toolbar. setMaxHeight: function secondaryToolbarSetMaxHeight(container) { if (!container || !this.buttonContainer) { return; } this.newContainerHeight = container.clientHeight; if (this.previousContainerHeight === this.newContainerHeight) { return; } this.buttonContainer.setAttribute('style', 'max-height: ' + (this.newContainerHeight - SCROLLBAR_PADDING) + 'px;'); this.previousContainerHeight = this.newContainerHeight; }, open: function secondaryToolbarOpen() { if (this.opened) { return; } this.opened = true; this.toggleButton.classList.add('toggled'); this.toolbar.classList.remove('hidden'); }, close: function secondaryToolbarClose(target) { if (!this.opened) { return; } else if (target && !this.toolbar.contains(target)) { return; } this.opened = false; this.toolbar.classList.add('hidden'); this.toggleButton.classList.remove('toggled'); }, toggle: function secondaryToolbarToggle() { if (this.opened) { this.close(); } else { this.open(); } } }; function _setApp(app_) { app = app_; PDFViewerApplication = app.PDFViewerApplication; } exports.SecondaryToolbar = SecondaryToolbar; exports._setApp = _setApp; })); (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 {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.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, 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 * @returns {AnnotationLayerBuilder} */ createAnnotationLayerBuilder: function (pageDiv, pdfPage) { return new AnnotationLayerBuilder({ pageDiv: pageDiv, pdfPage: pdfPage, linkService: new SimpleLinkService(), }); } }; exports.AnnotationLayerBuilder = AnnotationLayerBuilder; exports.DefaultAnnotationLayerFactory = DefaultAnnotationLayerFactory; })); (function (root, factory) { { factory((root.pdfjsWebHandTool = {}), root.pdfjsWebUIUtils, root.pdfjsWebGrabToPan, root.pdfjsWebPreferences, root.pdfjsWebSecondaryToolbar); } }(this, function (exports, uiUtils, grabToPan, preferences, secondaryToolbar) { var mozL10n = uiUtils.mozL10n; var GrabToPan = grabToPan.GrabToPan; var Preferences = preferences.Preferences; var SecondaryToolbar = secondaryToolbar.SecondaryToolbar; /** * @typedef {Object} HandToolOptions * @property {HTMLDivElement} container - The document container. * @property {HTMLButtonElement} toggleHandTool - The button element for * toggling the hand tool. */ /** * @class */ var HandTool = (function HandToolClosure() { /** * @constructs HandTool * @param {HandToolOptions} options */ function HandTool(options) { this.container = options.container; this.toggleHandTool = options.toggleHandTool; this.wasActive = false; this.handTool = new GrabToPan({ element: this.container, onActiveChanged: function(isActive) { if (!this.toggleHandTool) { return; } if (isActive) { this.toggleHandTool.title = mozL10n.get('hand_tool_disable.title', null, 'Disable hand tool'); this.toggleHandTool.firstElementChild.textContent = mozL10n.get('hand_tool_disable_label', null, 'Disable hand tool'); } else { this.toggleHandTool.title = mozL10n.get('hand_tool_enable.title', null, 'Enable hand tool'); this.toggleHandTool.firstElementChild.textContent = mozL10n.get('hand_tool_enable_label', null, 'Enable hand tool'); } }.bind(this) }); if (this.toggleHandTool) { this.toggleHandTool.addEventListener('click', this.toggle.bind(this)); window.addEventListener('localized', function (evt) { Preferences.get('enableHandToolOnLoad').then(function resolved(value) { if (value) { this.handTool.activate(); } }.bind(this), function rejected(reason) {}); }.bind(this)); window.addEventListener('presentationmodechanged', function (evt) { if (evt.detail.switchInProgress) { return; } if (evt.detail.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(); SecondaryToolbar.close(); }, 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.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; 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) { var event = document.createEvent('CustomEvent'); event.initCustomEvent('find' + type, true, true, { query: this.findField.value, caseSensitive: this.caseSensitive.checked, highlightAll: this.highlightAll.checked, findPrevious: findPrev }); return window.dispatchEvent(event); }, 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.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._pagesRotation = 0; this._pagesRequests = []; }, setDocument: function PDFThumbnailViewer_setDocument(pdfDocument) { if (this.pdfDocument) { // cleanup of the elements and views var thumbsView = this.container; while (thumbsView.hasChildNodes()) { thumbsView.removeChild(thumbsView.lastChild); } 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)); }, /** * @param {PDFPageView} pageView * @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.pdfjsWebPDFViewer = {}), root.pdfjsWebUIUtils, root.pdfjsWebPDFPageView, root.pdfjsWebPDFRenderingQueue, root.pdfjsWebTextLayerBuilder, root.pdfjsWebAnnotationLayerBuilder, root.pdfjsWebPDFLinkService, root.pdfjsWebPDFJS); } }(this, function (exports, uiUtils, pdfPageView, pdfRenderingQueue, textLayerBuilder, annotationLayerBuilder, pdfLinkService, 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 {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. */ /** * 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.linkService = options.linkService || new SimpleLinkService(); this.downloadManager = options.downloadManager || null; this.removePageBorders = options.removePageBorders || 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.updateInProgress = false; 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]; }, get currentPageNumber() { return this._currentPageNumber; }, set currentPageNumber(val) { if (!this.pdfDocument) { this._currentPageNumber = val; return; } var event = document.createEvent('UIEvents'); event.initUIEvent('pagechange', true, true, window, 0); event.updateInProgress = this.updateInProgress; if (!(0 < val && val <= this.pagesCount)) { event.pageNumber = this._currentPageNumber; event.previousPageNumber = val; this.container.dispatchEvent(event); return; } event.previousPageNumber = this._currentPageNumber; this._currentPageNumber = val; event.pageNumber = val; this.container.dispatchEvent(event); // Check if the caller is `PDFViewer_update`, to avoid breaking scrolling. if (this.updateInProgress) { return; } this.scrollPageIntoView(val); }, /** * @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; 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) { this._pagesRotation = rotation; 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._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 () { var event = document.createEvent('CustomEvent'); event.initCustomEvent('pagesloaded', true, true, { pagesCount: pagesCount }); self.container.dispatchEvent(event); }); 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); }; // when page is painted, using the image as thumbnail base 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, id: pageNum, scale: scale, defaultViewport: viewport.clone(), renderingQueue: this.renderingQueue, textLayerFactory: textLayerFactory, annotationLayerFactory: this }); 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(); } }); var event = document.createEvent('CustomEvent'); event.initCustomEvent('pagesinit', true, true, null); self.container.dispatchEvent(event); if (this.defaultRenderingQueue) { this.update(); } if (this.findController) { this.findController.resolveFirstPage(); } }.bind(this)); }, _resetView: function () { this._pages = []; this._currentPageNumber = 1; this._currentScale = UNKNOWN_SCALE; this._currentScaleValue = null; this._buffer = new PDFPageViewBuffer(DEFAULT_CACHE_SIZE); this._location = null; this._pagesRotation = 0; this._pagesRequests = []; var container = this.viewer; while (container.hasChildNodes()) { container.removeChild(container.lastChild); } }, _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 event = document.createEvent('UIEvents'); event.initUIEvent('scalechange', true, true, window, 0); event.scale = newScale; if (preset) { event.presetValue = newValue; } this.container.dispatchEvent(event); }, _setScaleUpdatePages: function pdfViewer_setScaleUpdatePages( newScale, newValue, noScroll, preset) { this._currentScaleValue = newValue; 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(page, dest); } 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('pdfViewSetScale: \'' + value + '\' is an unknown zoom value.'); return; } this._setScaleUpdatePages(scale, value, noScroll, true); } }, /** * Scrolls page into view. * @param {number} pageNumber * @param {Array} dest - (optional) original PDF destination array: * */ scrollPageIntoView: function PDFViewer_scrollPageIntoView(pageNumber, dest) { if (!this.pdfDocument) { return; } var pageView = this._pages[pageNumber - 1]; if (this.isInPresentationMode) { if (this._currentPageNumber !== pageView.id) { // Avoid breaking getVisiblePages in presentation mode. this.currentPageNumber = pageView.id; return; } dest = null; // Fixes the case when PDF has different page sizes. this._setScale(this._currentScaleValue, true); } if (!dest) { scrollIntoView(pageView.div); 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: 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]); 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; } this.updateInProgress = true; 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.currentPageNumber = currentId; } this._updateLocation(firstPage); this.updateInProgress = false; var event = document.createEvent('UIEvents'); event.initUIEvent('updateviewarea', true, true, window, 0); event.location = this._location; this.container.dispatchEvent(event); }, 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(); } } }, /** * @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) { return new TextLayerBuilder({ textLayerDiv: textLayerDiv, pageIndex: pageIndex, viewport: viewport, findController: this.isInPresentationMode ? null : this.findController }); }, /** * @param {HTMLDivElement} pageDiv * @param {PDFPage} pdfPage * @returns {AnnotationLayerBuilder} */ createAnnotationLayerBuilder: function (pageDiv, pdfPage) { return new AnnotationLayerBuilder({ pageDiv: pageDiv, pdfPage: pdfPage, linkService: this.linkService, downloadManager: this.downloadManager }); }, setFindController: function (findController) { this.findController = findController; }, }; return PDFViewer; })(); exports.PresentationModeState = PresentationModeState; exports.PDFViewer = PDFViewer; })); (function (root, factory) { { factory((root.pdfjsWebApp = {}), root.pdfjsWebUIUtils, root.pdfjsWebFirefoxCom, 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.pdfjsWebMozPrintCallbackPolyfill, root.pdfjsWebPDFJS); } }(this, function (exports, uiUtilsLib, firefoxComLib, downloadManagerLib, pdfHistoryLib, preferencesLib, pdfSidebarLib, viewHistoryLib, pdfThumbnailViewerLib, secondaryToolbarLib, passwordPromptLib, pdfPresentationModeLib, pdfDocumentPropertiesLib, handToolLib, pdfViewerLib, pdfRenderingQueueLib, pdfLinkServiceLib, pdfOutlineViewerLib, overlayManagerLib, pdfAttachmentViewerLib, pdfFindControllerLib, pdfFindBarLib, mozPrintCallbackPolyfillLib, pdfjsLib) { var FirefoxCom = firefoxComLib.FirefoxCom; 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 DownloadManager = downloadManagerLib.DownloadManager || firefoxComLib.DownloadManager; 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 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 = '/static/js/pdf.worker.js'; PDFJS.cMapUrl = '../web/cmaps/'; PDFJS.cMapPacked = true; } var PDFViewerApplication = { initialBookmark: document.location.hash.substring(1), initialDestination: null, initialized: false, fellback: false, appConfig: null, pdfDocument: null, pdfLoadingTask: null, printing: false, /** @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, pageRotation: 0, isInitialViewSet: false, animationStartedPromise: null, preferenceSidebarViewOnLoad: SidebarView.NONE, preferencePdfBugEnabled: false, preferenceShowPreviousViewOnLoad: true, preferenceDefaultZoomValue: '', isViewerEmbedded: (window.parent !== window), url: '', // called once when the document is loaded initialize: function pdfViewInitialize(appConfig) { configure(pdfjsLib.PDFJS); this.appConfig = appConfig; var pdfRenderingQueue = new PDFRenderingQueue(); pdfRenderingQueue.onIdle = this.cleanup.bind(this); this.pdfRenderingQueue = pdfRenderingQueue; var pdfLinkService = new PDFLinkService(); this.pdfLinkService = pdfLinkService; var container = appConfig.mainContainer; var viewer = appConfig.viewerContainer; this.pdfViewer = new PDFViewer({ container: container, viewer: viewer, renderingQueue: pdfRenderingQueue, linkService: pdfLinkService, downloadManager: new DownloadManager() }); 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 }); pdfLinkService.setHistory(this.pdfHistory); this.findController = new PDFFindController({ pdfViewer: this.pdfViewer, integratedFind: this.supportsIntegratedFind }); this.pdfViewer.setFindController(this.findController); // FIXME better PDFFindBar constructor parameters var findBarConfig = Object.create(appConfig.findBar); findBarConfig.findController = this.findController; this.findBar = new PDFFindBar(findBarConfig); this.findController.setFindBar(this.findBar); this.overlayManager = OverlayManager; this.handTool = new HandTool({ container: container, toggleHandTool: appConfig.secondaryToolbar.toggleHandTool }); this.pdfDocumentProperties = new PDFDocumentProperties(appConfig.documentProperties); SecondaryToolbar.initialize(appConfig.secondaryToolbar); this.secondaryToolbar = SecondaryToolbar; if (this.supportsFullscreen) { var toolbar = SecondaryToolbar; this.pdfPresentationMode = new PDFPresentationMode({ container: container, viewer: viewer, pdfViewer: this.pdfViewer, contextMenuItems: [ { element: appConfig.fullscreen.contextFirstPage, handler: toolbar.firstPageClick.bind(toolbar) }, { element: appConfig.fullscreen.contextLastPage, handler: toolbar.lastPageClick.bind(toolbar) }, { element: appConfig.fullscreen.contextPageRotateCw, handler: toolbar.pageRotateCwClick.bind(toolbar) }, { element: appConfig.fullscreen.contextPageRotateCcw, handler: toolbar.pageRotateCcwClick.bind(toolbar) } ] }); } this.passwordPrompt = new PasswordPrompt(appConfig.passwordOverlay); this.pdfOutlineViewer = new PDFOutlineViewer({ container: appConfig.sidebar.outlineView, linkService: pdfLinkService, }); this.pdfAttachmentViewer = new PDFAttachmentViewer({ container: appConfig.sidebar.attachmentsView, downloadManager: new DownloadManager(), }); // FIXME better PDFSidebar constructor parameters var sidebarConfig = Object.create(appConfig.sidebar); sidebarConfig.pdfViewer = this.pdfViewer; sidebarConfig.pdfThumbnailViewer = this.pdfThumbnailViewer; sidebarConfig.pdfOutlineViewer = this.pdfOutlineViewer; 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('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; }), // TODO move more preferences and other async stuff here ]).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.numPages; }, set page(val) { this.pdfLinkService.page = val; }, get page() { // TODO remove return this.pdfLinkService.page; }, get supportsPrinting() { var canvas = document.createElement('canvas'); var value = 'mozPrintCallback' in canvas; return pdfjsLib.shadow(this, 'supportsPrinting', value); }, get supportsFullscreen() { var doc = document.documentElement; var support = !!(doc.requestFullscreen || doc.mozRequestFullScreen || doc.webkitRequestFullScreen || doc.msRequestFullscreen); if (document.fullscreenEnabled === false || document.mozFullScreenEnabled === false || document.webkitFullscreenEnabled === false || document.msFullscreenEnabled === false) { support = false; } if (support && pdfjsLib.PDFJS.disableFullscreen === true) { support = false; } return pdfjsLib.shadow(this, 'supportsFullscreen', support); }, get supportsIntegratedFind() { var support = false; return pdfjsLib.shadow(this, 'supportsIntegratedFind', support); }, get supportsDocumentFonts() { var support = true; return pdfjsLib.shadow(this, 'supportsDocumentFonts', support); }, get supportsDocumentColors() { var support = true; return pdfjsLib.shadow(this, 'supportsDocumentColors', support); }, get loadingBar() { var bar = new ProgressBar('#loadingBar', {}); return pdfjsLib.shadow(this, 'loadingBar', bar); }, get supportedMouseWheelZoomModifierKeys() { var support = { ctrlKey: true, metaKey: true, }; return pdfjsLib.shadow(this, 'supportedMouseWheelZoomModifierKeys', support); }, setTitleUsingUrl: function pdfViewSetTitleUsingUrl(url) { this.url = url; 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.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) { var scale = 0; if (arguments.length > 2 || typeof args === 'number') { console.warn('Call of open() with obsolete signature.'); if (typeof args === 'number') { scale = args; // scale argument was found } args = arguments[4] || null; if (arguments[3] && typeof arguments[3] === 'object') { // The pdfDataRangeTransport argument is present. args = Object.create(args); args.range = arguments[3]; } if (typeof arguments[2] === 'string') { // The password argument is present. args = Object.create(args); args.password = arguments[2]; } } 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); 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; } if (args) { for (var prop in args) { parameters[prop] = args[prop]; } } 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); var result = 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); } ); if (args && args.length) { PDFViewerApplication.pdfDocumentProperties.setFileSize(args.length); } return result; }, download: function pdfViewDownload() { function downloadByUrl() { downloadManager.downloadUrl(url, filename); } var url = this.url.split('#')[0]; var filename = getPDFFileNameFromURL(url); var downloadManager = new 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 // Error occurred try downloading with just the url. ).then(null, downloadByUrl); }, fallback: function pdfViewFallback(featureId) { }, /** * 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}}'); } } } var errorWrapperConfig = this.appConfig.errorWrapper; var errorWrapper = errorWrapperConfig.container; errorWrapper.removeAttribute('hidden'); var errorMessage = errorWrapperConfig.errorMessage; errorMessage.textContent = message; var closeButton = errorWrapperConfig.closeButton; closeButton.onclick = function() { errorWrapper.setAttribute('hidden', 'true'); }; var errorMoreInfo = errorWrapperConfig.errorMoreInfo; var moreInfoButton = errorWrapperConfig.moreInfoButton; var lessInfoButton = errorWrapperConfig.lessInfoButton; moreInfoButton.onclick = function() { errorMoreInfo.removeAttribute('hidden'); moreInfoButton.setAttribute('hidden', 'true'); lessInfoButton.removeAttribute('hidden'); errorMoreInfo.style.height = errorMoreInfo.scrollHeight + 'px'; }; lessInfoButton.onclick = function() { errorMoreInfo.setAttribute('hidden', 'true'); moreInfoButton.removeAttribute('hidden'); lessInfoButton.setAttribute('hidden', 'true'); }; moreInfoButton.oncontextmenu = noContextMenuHandler; lessInfoButton.oncontextmenu = noContextMenuHandler; closeButton.oncontextmenu = noContextMenuHandler; moreInfoButton.removeAttribute('hidden'); lessInfoButton.setAttribute('hidden', 'true'); errorMoreInfo.value = moreInfoText; }, 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(); }); var pagesCount = pdfDocument.numPages; var toolbarConfig = this.appConfig.toolbar; toolbarConfig.numPages.textContent = mozL10n.get('page_of', {pageCount: pagesCount}, 'of {{pageCount}}'); toolbarConfig.pageNumber.max = pagesCount; var id = this.documentFingerprint = pdfDocument.fingerprint; var store = this.store = new ViewHistory(id); var baseDocumentUrl = null; 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; this.pdfThumbnailViewer.setDocument(pdfDocument); firstPagePromise.then(function(pdfPage) { downloadedPromise.then(function () { var event = document.createEvent('CustomEvent'); event.initCustomEvent('documentload', true, true, {}); window.dispatchEvent(event); }); 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); }); }); 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; } } }); } }); // outline depends on pagesRefMap var promises = [pagesPromise, this.animationStartedPromise]; Promise.all(promises).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); } }); }, setInitialView: function pdfViewSetInitialView(storedHash, options) { var scale = options && options.scale; var sidebarView = options && options.sidebarView; this.isInitialViewSet = true; // When opening a new file, when one is already loaded in the viewer, // ensure that the 'pageNumber' element displays the correct value. this.appConfig.toolbar.pageNumber.value = this.pdfViewer.currentPageNumber; 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.supportsPrinting) { var printMessage = mozL10n.get('printing_not_supported', null, 'Warning: Printing is not fully supported by this browser.'); this.error(printMessage); return; } var alertNotReady = false; var i, ii; if (!this.pdfDocument || !this.pagesCount) { alertNotReady = true; } else { for (i = 0, ii = this.pagesCount; i < ii; ++i) { if (!this.pdfViewer.getPageView(i).pdfPage) { alertNotReady = true; break; } } } if (alertNotReady) { var notReadyMessage = mozL10n.get('printing_not_ready', null, 'Warning: The PDF is not fully loaded for printing.'); window.alert(notReadyMessage); return; } this.printing = true; this.forceRendering(); var printContainer = this.appConfig.printContainer; var body = document.querySelector('body'); body.setAttribute('data-mozPrintCallback', true); if (!this.hasEqualPageSizes) { console.warn('Not all pages have the same size. The printed result ' + 'may be incorrect!'); } // Insert a @page + size rule to make sure that the page size is correctly // set. Note that we assume that all pages have the same size, because // variable-size pages are not supported yet (at least in Chrome & Firefox). // TODO(robwu): Use named pages when size calculation bugs get resolved // (e.g. https://crbug.com/355116) AND when support for named pages is // added (http://www.w3.org/TR/css3-page/#using-named-pages). // In browsers where @page + size is not supported (such as Firefox, // https://bugzil.la/851441), the next stylesheet will be ignored and the // user has to select the correct paper size in the UI if wanted. this.pageStyleSheet = document.createElement('style'); var pageSize = this.pdfViewer.getPageView(0).pdfPage.getViewport(1); this.pageStyleSheet.textContent = // "size: " is what we need. But also add "A4" because // Firefox incorrectly reports support for the other value. '@supports ((size:A4) and (size:1pt 1pt)) {' + '@page { size: ' + pageSize.width + 'pt ' + pageSize.height + 'pt;}' + '}'; body.appendChild(this.pageStyleSheet); for (i = 0, ii = this.pagesCount; i < ii; ++i) { this.pdfViewer.getPageView(i).beforePrint(printContainer); } }, // 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() { var div = this.appConfig.printContainer; while (div.hasChildNodes()) { div.removeChild(div.lastChild); } if (this.pageStyleSheet && this.pageStyleSheet.parentNode) { this.pageStyleSheet.parentNode.removeChild(this.pageStyleSheet); this.pageStyleSheet = null; } this.printing = false; 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.scrollPageIntoView(pageNumber); }, requestPresentationMode: function pdfViewRequestPresentationMode() { if (!this.pdfPresentationMode) { return; } this.pdfPresentationMode.request(); }, /** * @param {number} delta - The delta value from the mouse event. */ scrollPresentationMode: function pdfViewScrollPresentationMode(delta) { if (!this.pdfPresentationMode) { return; } this.pdfPresentationMode.mouseScroll(delta); } }; var HOSTED_VIEWER_ORIGINS = ['null', 'http://mozilla.github.io', 'https://mozilla.github.io']; function validateFileURL(file) { try { var viewerOrigin = new URL(window.location.href).origin || 'null'; if (HOSTED_VIEWER_ORIGINS.indexOf(viewerOrigin) >= 0) { // Hosted or local viewer, allow for any file locations return; } var fileOrigin = new URL(file, window.location.href).origin; // Removing of the following line will not guarantee that the viewer will // start accepting URLs from foreign origin -- CORS headers on the remote // server must be properly configured. if (fileOrigin !== viewerOrigin) { throw new Error('file origin does not match viewer\'s'); } } catch (e) { var message = e && e.message; var loadingErrorMessage = mozL10n.get('loading_error', null, 'An error occurred while loading the PDF.'); var moreInfo = { message: message }; PDFViewerApplication.error(loadingErrorMessage, moreInfo); throw e; } } function webViewerInitialized() { var queryString = document.location.search.substring(1); var params = parseQueryString(queryString); var file = 'file' in params ? params.file : DEFAULT_URL; validateFileURL(file); var appConfig = PDFViewerApplication.appConfig; var fileInput = document.createElement('input'); fileInput.id = appConfig.openFileInputName; fileInput.className = 'fileInput'; fileInput.setAttribute('type', 'file'); fileInput.oncontextmenu = noContextMenuHandler; document.body.appendChild(fileInput); if (!window.File || !window.FileReader || !window.FileList || !window.Blob) { appConfig.toolbar.openFile.setAttribute('hidden', 'true'); appConfig.secondaryToolbar.openFile.setAttribute('hidden', 'true'); } else { fileInput.value = null; } 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 ('locale' in hashParams) { PDFJS.locale = hashParams['locale']; } 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(','); PDFBug.enable(enabled); PDFBug.init(pdfjsLib, appConfig.mainContainer); } } mozL10n.setLanguage(PDFJS.locale); if (!PDFViewerApplication.supportsPrinting) { appConfig.toolbar.print.classList.add('hidden'); appConfig.secondaryToolbar.print.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) { var event = document.createEvent('UIEvents'); event.initUIEvent('resize', false, false, window, 0); window.dispatchEvent(event); } }, 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() { // Handle the user inputting a floating point number. PDFViewerApplication.page = (this.value | 0); if (this.value !== (this.value | 0).toString()) { this.value = PDFViewerApplication.page; } }); appConfig.toolbar.scaleSelect.addEventListener('change', function() { if (this.value === 'custom') { return; } PDFViewerApplication.pdfViewer.currentScaleValue = this.value; }); appConfig.toolbar.presentationModeButton.addEventListener('click', SecondaryToolbar.presentationModeClick.bind(SecondaryToolbar)); appConfig.toolbar.openFile.addEventListener('click', SecondaryToolbar.openFileClick.bind(SecondaryToolbar)); appConfig.toolbar.print.addEventListener('click', SecondaryToolbar.printClick.bind(SecondaryToolbar)); appConfig.toolbar.download.addEventListener('click', SecondaryToolbar.downloadClick.bind(SecondaryToolbar)); if (file && file.lastIndexOf('file:', 0) === 0) { // file:-scheme. Load the contents in the main thread because QtWebKit // cannot load file:-URLs in a Web Worker. file:-URLs are usually loaded // very quickly, so there is no need to set up progress event listeners. PDFViewerApplication.setTitleUsingUrl(file); var xhr = new XMLHttpRequest(); xhr.onload = function() { PDFViewerApplication.open(new Uint8Array(xhr.response)); }; try { xhr.open('GET', file); xhr.responseType = 'arraybuffer'; xhr.send(); } catch (e) { PDFViewerApplication.error(mozL10n.get('loading_error', null, 'An error occurred while loading the PDF.'), e); } return; } if (file) { PDFViewerApplication.open(file); } } document.addEventListener('pagerendered', function (e) { var pageNumber = e.detail.pageNumber; var pageIndex = pageNumber - 1; var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex); // 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); } // 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); } }, true); document.addEventListener('textlayerrendered', function (e) { var pageIndex = e.detail.pageNumber - 1; var pageView = PDFViewerApplication.pdfViewer.getPageView(pageIndex); }, true); document.addEventListener('pagemode', function (evt) { if (!PDFViewerApplication.initialized) { return; } // Handle the 'pagemode' hash parameter, see also `PDFLinkService_setHash`. var mode = evt.detail.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); }, true); document.addEventListener('namedaction', function (e) { if (!PDFViewerApplication.initialized) { return; } // Processing couple of named actions that might be useful. // See also PDFLinkService.executeNamedAction var action = e.detail.action; switch (action) { case 'GoToPage': PDFViewerApplication.appConfig.toolbar.pageNumber.focus(); break; case 'Find': if (!PDFViewerApplication.supportsIntegratedFind) { PDFViewerApplication.findBar.toggle(); } break; } }, true); window.addEventListener('presentationmodechanged', function (e) { var active = e.detail.active; var switchInProgress = e.detail.switchInProgress; PDFViewerApplication.pdfViewer.presentationModeState = switchInProgress ? PresentationModeState.CHANGING : active ? PresentationModeState.FULLSCREEN : PresentationModeState.NORMAL; }); window.addEventListener('sidebarviewchanged', function (evt) { 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', evt.detail.view).catch(function() {}); }); }, true); window.addEventListener('updateviewarea', function (evt) { if (!PDFViewerApplication.initialized) { return; } var location = evt.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() { /* unable to write to storage */ }); }); } var href = PDFViewerApplication.pdfLinkService.getAnchorUrl(location.pdfOpenParams); PDFViewerApplication.appConfig.toolbar.viewBookmark.href = href; PDFViewerApplication.appConfig.secondaryToolbar.viewBookmark.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); } }, true); window.addEventListener('resize', function webViewerResize(evt) { 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(); } // Set the 'max-height' CSS property of the secondary toolbar. SecondaryToolbar.setMaxHeight(PDFViewerApplication.appConfig.mainContainer); }); window.addEventListener('hashchange', function webViewerHashchange(evt) { if (PDFViewerApplication.pdfHistory.isHashChangeUnlocked) { var hash = document.location.hash.substring(1); if (!hash) { return; } if (!PDFViewerApplication.isInitialViewSet) { PDFViewerApplication.initialBookmark = hash; } else { PDFViewerApplication.pdfLinkService.setHash(hash); } } }); window.addEventListener('change', function webViewerChange(evt) { var files = evt.target.files; if (!files || files.length === 0) { return; } var file = files[0]; if (!pdfjsLib.PDFJS.disableCreateObjectURL && typeof URL !== 'undefined' && URL.createObjectURL) { PDFViewerApplication.open(URL.createObjectURL(file)); } else { // Read the local file into a Uint8Array. var fileReader = new FileReader(); fileReader.onload = function webViewerChangeFileReaderOnload(evt) { var buffer = evt.target.result; var uint8Array = new Uint8Array(buffer); PDFViewerApplication.open(uint8Array); }; fileReader.readAsArrayBuffer(file); } PDFViewerApplication.setTitleUsingUrl(file.name); // URL does not reflect proper document location - hiding some icons. var appConfig = PDFViewerApplication.appConfig; appConfig.toolbar.viewBookmark.setAttribute('hidden', 'true'); appConfig.secondaryToolbar.viewBookmark.setAttribute('hidden', 'true'); appConfig.toolbar.download.setAttribute('hidden', 'true'); appConfig.secondaryToolbar.download.setAttribute('hidden', 'true'); }, true); function selectScaleOption(value) { var options = PDFViewerApplication.appConfig.toolbar.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; } return predefinedValueFound; } window.addEventListener('localized', function localized(evt) { 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;'); } // Set the 'max-height' CSS property of the secondary toolbar. SecondaryToolbar.setMaxHeight(PDFViewerApplication.appConfig.mainContainer); }); }, true); window.addEventListener('scalechange', function scalechange(evt) { var appConfig = PDFViewerApplication.appConfig; appConfig.toolbar.zoomOut.disabled = (evt.scale === MIN_SCALE); appConfig.toolbar.zoomIn.disabled = (evt.scale === MAX_SCALE); // Update the 'scaleSelect' DOM element. var predefinedValueFound = selectScaleOption(evt.presetValue || '' + evt.scale); if (!predefinedValueFound) { var customScaleOption = appConfig.toolbar.customScaleOption; var customScale = Math.round(evt.scale * 10000) / 100; customScaleOption.textContent = mozL10n.get('page_scale_percent', { scale: customScale }, '{{scale}}%'); customScaleOption.selected = true; } if (!PDFViewerApplication.initialized) { return; } PDFViewerApplication.pdfViewer.update(); }, true); window.addEventListener('pagechange', function pagechange(evt) { var page = evt.pageNumber; if (evt.previousPageNumber !== page) { PDFViewerApplication.appConfig.toolbar.pageNumber.value = page; if (PDFViewerApplication.pdfSidebar.isThumbnailViewVisible) { PDFViewerApplication.pdfThumbnailViewer.scrollThumbnailIntoView(page); } } var numPages = PDFViewerApplication.pagesCount; PDFViewerApplication.appConfig.toolbar.previous.disabled = (page <= 1); PDFViewerApplication.appConfig.toolbar.next.disabled = (page >= numPages); PDFViewerApplication.appConfig.toolbar.firstPage.disabled = (page <= 1); PDFViewerApplication.appConfig.toolbar.lastPage.disabled = (page >= numPages); // 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); } } }, true); var zoomDisabled = false, zoomDisabledTimeout; function handleMouseWheel(evt) { var MOUSE_WHEEL_DELTA_FACTOR = 40; var ticks = (evt.type === 'DOMMouseScroll') ? -evt.detail : evt.wheelDelta / MOUSE_WHEEL_DELTA_FACTOR; var direction = (ticks < 0) ? 'zoomOut' : 'zoomIn'; var pdfViewer = PDFViewerApplication.pdfViewer; if (pdfViewer.isInPresentationMode) { evt.preventDefault(); PDFViewerApplication.scrollPresentationMode(ticks * MOUSE_WHEEL_DELTA_FACTOR); } else 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; PDFViewerApplication[direction](Math.abs(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('DOMMouseScroll', handleMouseWheel); window.addEventListener('mousewheel', handleMouseWheel); window.addEventListener('click', function click(evt) { if (SecondaryToolbar.opened && PDFViewerApplication.pdfViewer.containsElement(evt.target)) { SecondaryToolbar.close(); } }, false); 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) { PDFViewerApplication.findBar.dispatchEvent('again', 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 or META without shift if (cmd === 1 || cmd === 8) { switch (evt.keyCode) { case 83: // s PDFViewerApplication.download(); handled = true; 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 */ /* falls through */ case 37: // left arrow // horizontal scrolling using arrow keys if (pdfViewer.isHorizontalScrollbarEnabled) { break; } /* falls through */ case 75: // 'k' case 80: // 'p' PDFViewerApplication.page--; handled = true; break; case 27: // esc key if (SecondaryToolbar.opened) { 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; } /* falls through */ case 39: // right arrow // horizontal scrolling using arrow keys if (pdfViewer.isHorizontalScrollbarEnabled) { break; } /* falls through */ case 74: // 'j' case 78: // 'n' 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.pdfDocument && 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; } 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.beforePrint(); }); window.addEventListener('afterprint', function afterPrint(evt) { PDFViewerApplication.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); }); })(); exports.PDFViewerApplication = PDFViewerApplication; // TODO remove circular reference of pdfjs-web/secondary_toolbar on app. secondaryToolbarLib._setApp(exports); })); }).call(pdfjsWebLibs); function getViewerConfiguration() { return { appContainer: document.body, mainContainer: document.getElementById('viewerContainer'), viewerContainer: document.getElementById('viewer'), toolbar: { 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'), presentationModeButton: document.getElementById('secondaryPresentationMode'), openFile: document.getElementById('secondaryOpenFile'), print: document.getElementById('secondaryPrint'), download: document.getElementById('secondaryDownload'), viewBookmark: document.getElementById('secondaryViewBookmark'), firstPage: document.getElementById('firstPage'), lastPage: document.getElementById('lastPage'), pageRotateCw: document.getElementById('pageRotateCw'), pageRotateCcw: document.getElementById('pageRotateCcw'), documentPropertiesButton: document.getElementById('documentProperties'), toggleHandTool: document.getElementById('toggleHandTool'), }, 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', }; } function webViewerLoad() { var config = getViewerConfiguration(); window.PDFViewerApplication = pdfjsWebLibs.pdfjsWebApp.PDFViewerApplication; pdfjsWebLibs.pdfjsWebApp.PDFViewerApplication.run(config); } document.addEventListener('DOMContentLoaded', webViewerLoad, true);