/data/ext/viewerPDF/pdfjs/web/viewer.js
JavaScript | 5649 lines | 4362 code | 754 blank | 533 comment | 743 complexity | 08364061e469e999a62b0097c703a3f4 MD5 | raw file
Possible License(s): AGPL-3.0, Apache-2.0, MIT, BSD-3-Clause
- /* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
- /* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
- /* Copyright 2012 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 PDFJS, PDFBug, FirefoxCom, Stats, Cache, PDFFindBar, CustomStyle,
- PDFFindController, ProgressBar, TextLayerBuilder, DownloadManager,
- getFileName, scrollIntoView, getPDFFileNameFromURL, PDFHistory,
- Preferences, ViewHistory, PageView, ThumbnailView, URL,
- noContextMenuHandler, SecondaryToolbar, PasswordPrompt,
- PresentationMode, HandTool, Promise, DocumentProperties */
- 'use strict';
- //var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
- var DEFAULT_SCALE = 'auto';
- var DEFAULT_SCALE_DELTA = 1.1;
- var UNKNOWN_SCALE = 0;
- var CACHE_SIZE = 20;
- var CSS_UNITS = 96.0 / 72.0;
- var SCROLLBAR_PADDING = 40;
- var VERTICAL_PADDING = 5;
- var MAX_AUTO_SCALE = 1.25;
- var MIN_SCALE = 0.25;
- var MAX_SCALE = 4.0;
- var VIEW_HISTORY_MEMORY = 20;
- var SCALE_SELECT_CONTAINER_PADDING = 8;
- var SCALE_SELECT_PADDING = 22;
- var THUMBNAIL_SCROLL_MARGIN = -19;
- var USE_ONLY_CSS_ZOOM = false;
- var CLEANUP_TIMEOUT = 30000;
- var IGNORE_CURRENT_POSITION_ON_ZOOM = false;
- var RenderingStates = {
- INITIAL: 0,
- RUNNING: 1,
- PAUSED: 2,
- FINISHED: 3
- };
- var FindStates = {
- FIND_FOUND: 0,
- FIND_NOTFOUND: 1,
- FIND_WRAPPED: 2,
- FIND_PENDING: 3
- };
- PDFJS.imageResourcesPath = './images/';
- PDFJS.workerSrc = '../build/pdf.worker.js';
- var mozL10n = document.mozL10n || document.webL10n;
- // optimised CSS custom property getter/setter
- var CustomStyle = (function CustomStyleClosure() {
- // As noted on: http://www.zachstronaut.com/posts/2009/02/17/
- // animate-css-transforms-firefox-webkit.html
- // in some versions of IE9 it is critical that ms appear in this list
- // before Moz
- var prefixes = ['ms', 'Moz', 'Webkit', 'O'];
- var _cache = { };
- function CustomStyle() {
- }
- CustomStyle.getProp = function get(propName, element) {
- // check cache only when no element is given
- if (arguments.length == 1 && typeof _cache[propName] == 'string') {
- return _cache[propName];
- }
- element = element || document.documentElement;
- var style = element.style, prefixed, uPropName;
- // test standard property first
- if (typeof style[propName] == 'string') {
- return (_cache[propName] = propName);
- }
- // capitalize
- uPropName = propName.charAt(0).toUpperCase() + propName.slice(1);
- // test vendor specific properties
- for (var i = 0, l = prefixes.length; i < l; i++) {
- prefixed = prefixes[i] + uPropName;
- if (typeof style[prefixed] == 'string') {
- return (_cache[propName] = prefixed);
- }
- }
- //if all fails then set to undefined
- return (_cache[propName] = 'undefined');
- };
- CustomStyle.setProp = function set(propName, element, str) {
- var prop = this.getProp(propName);
- if (prop != 'undefined')
- element.style[prop] = str;
- };
- return CustomStyle;
- })();
- function getFileName(url) {
- var anchor = url.indexOf('#');
- var query = url.indexOf('?');
- var end = Math.min(
- anchor > 0 ? anchor : url.length,
- query > 0 ? query : url.length);
- return url.substring(url.lastIndexOf('/', end) + 1, end);
- }
- /**
- * 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.
- * element {Object} The element to be visible.
- * spot {Object} An object with optional top and left properties,
- * specifying the offset from the top left edge.
- */
- function scrollIntoView(element, spot) {
- // 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;
- var offsetY = element.offsetTop + element.clientTop;
- var offsetX = element.offsetLeft + element.clientLeft;
- if (!parent) {
- console.error('offsetParent is not set -- cannot scroll');
- return;
- }
- while (parent.clientHeight === parent.scrollHeight) {
- 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;
- }
- /**
- * 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) {
- // 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() {
- this.bar.classList.add('hidden');
- this.bar.removeAttribute('style');
- }
- };
- return ProgressBar;
- })();
- var Cache = function cacheCache(size) {
- var data = [];
- this.push = function cachePush(view) {
- var i = data.indexOf(view);
- if (i >= 0)
- data.splice(i);
- data.push(view);
- if (data.length > size)
- data.shift().destroy();
- };
- };
- var isLocalStorageEnabled = (function isLocalStorageEnabledClosure() {
- // Feature test as per http://diveintohtml5.info/storage.html
- // The additional localStorage call is to get around a FF quirk, see
- // bug #495747 in bugzilla
- try {
- return ('localStorage' in window && window['localStorage'] !== null &&
- localStorage);
- } catch (e) {
- return false;
- }
- })();
- var EXPORTED_SYMBOLS = ['DEFAULT_PREFERENCES'];
- var DEFAULT_PREFERENCES = {
- showPreviousViewOnLoad: true,
- defaultZoomValue: '',
- ifAvailableShowOutlineOnLoad: false
- };
- var Preferences = (function PreferencesClosure() {
- function Preferences() {
- this.prefs = {};
- this.isInitializedPromiseResolved = false;
- this.initializedPromise = this.readFromStorage().then(function(prefObj) {
- this.isInitializedPromiseResolved = true;
- if (prefObj) {
- this.prefs = prefObj;
- }
- }.bind(this));
- }
- Preferences.prototype = {
- writeToStorage: function Preferences_writeToStorage(prefObj) {
- return;
- },
- readFromStorage: function Preferences_readFromStorage() {
- var readFromStoragePromise = Promise.resolve();
- return readFromStoragePromise;
- },
- reset: function Preferences_reset() {
- if (this.isInitializedPromiseResolved) {
- this.prefs = {};
- this.writeToStorage(this.prefs);
- }
- },
- set: function Preferences_set(name, value) {
- if (!this.isInitializedPromiseResolved) {
- return;
- } else if (DEFAULT_PREFERENCES[name] === undefined) {
- console.error('Preferences_set: \'' + name + '\' is undefined.');
- return;
- } else if (value === undefined) {
- console.error('Preferences_set: no value is specified.');
- return;
- }
- var valueType = typeof value;
- var defaultType = typeof DEFAULT_PREFERENCES[name];
- if (valueType !== defaultType) {
- if (valueType === 'number' && defaultType === 'string') {
- value = value.toString();
- } else {
- console.error('Preferences_set: \'' + value + '\' is a \"' +
- valueType + '\", expected a \"' + defaultType + '\".');
- return;
- }
- }
- this.prefs[name] = value;
- this.writeToStorage(this.prefs);
- },
- get: function Preferences_get(name) {
- var defaultPref = DEFAULT_PREFERENCES[name];
- if (defaultPref === undefined) {
- console.error('Preferences_get: \'' + name + '\' is undefined.');
- return;
- } else if (this.isInitializedPromiseResolved) {
- var pref = this.prefs[name];
- if (pref !== undefined) {
- return pref;
- }
- }
- return defaultPref;
- }
- };
- return Preferences;
- })();
- Preferences.prototype.writeToStorage = function(prefObj) {
- if (isLocalStorageEnabled) {
- localStorage.setItem('preferences', JSON.stringify(prefObj));
- }
- };
- Preferences.prototype.readFromStorage = function() {
- var readFromStoragePromise = new Promise(function (resolve) {
- if (isLocalStorageEnabled) {
- var readPrefs = JSON.parse(localStorage.getItem('preferences'));
- resolve(readPrefs);
- }
- });
- return readFromStoragePromise;
- };
- (function mozPrintCallbackPolyfillClosure() {
- 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 <canvas> elements
- var index; // Index of <canvas> 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) {
- 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);
- }
- })();
- var DownloadManager = (function DownloadManagerClosure() {
- 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;
- }
- // <a> 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 (!PDFJS.isValidUrl(url, true)) {
- return; // restricted/invalid URL
- }
- download(url + '#pdfjs.action=download', 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);
- }
- };
- return DownloadManager;
- })();
- var cache = new Cache(CACHE_SIZE);
- var currentPageNumber = 1;
- /**
- * 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 'node make <flag>' the following cases exist:
- * - FIREFOX or MOZCENTRAL - uses about:config.
- * - B2G - uses asyncStorage.
- * - GENERIC or CHROME - uses localStorage, if it is available.
- */
- var ViewHistory = (function ViewHistoryClosure() {
- function ViewHistory(fingerprint) {
- this.fingerprint = fingerprint;
- var initializedPromiseResolve;
- this.isInitializedPromiseResolved = false;
- this.initializedPromise = new Promise(function (resolve) {
- initializedPromiseResolve = resolve;
- });
- var resolvePromise = (function ViewHistoryResolvePromise(db) {
- this.isInitializedPromiseResolved = true;
- this.initialize(db || '{}');
- initializedPromiseResolve();
- }).bind(this);
- if (isLocalStorageEnabled) {
- resolvePromise(localStorage.getItem('database'));
- }
- }
- ViewHistory.prototype = {
- initialize: function ViewHistory_initialize(database) {
- database = JSON.parse(database);
- if (!('files' in database)) {
- database.files = [];
- }
- if (database.files.length >= VIEW_HISTORY_MEMORY) {
- 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;
- },
- set: function ViewHistory_set(name, val) {
- if (!this.isInitializedPromiseResolved) {
- return;
- }
- var file = this.file;
- file[name] = val;
- var database = JSON.stringify(this.database);
- if (isLocalStorageEnabled) {
- localStorage.setItem('database', database);
- }
- },
- get: function ViewHistory_get(name, defaultValue) {
- if (!this.isInitializedPromiseResolved) {
- return defaultValue;
- }
- return this.file[name] || defaultValue;
- }
- };
- return ViewHistory;
- })();
- /* globals PDFFindController, FindStates, mozL10n */
- /**
- * Creates a "search bar" given 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 = {
- opened: false,
- bar: null,
- toggleButton: null,
- findField: null,
- highlightAll: null,
- caseSensitive: null,
- findMsg: null,
- findStatusIcon: null,
- findPreviousButton: null,
- findNextButton: null,
- initialize: function(options) {
- if(typeof PDFFindController === 'undefined' || PDFFindController === null) {
- throw 'PDFFindBar cannot be initialized ' +
- 'without a PDFFindController instance.';
- }
- this.bar = options.bar;
- this.toggleButton = options.toggleButton;
- this.findField = options.findField;
- this.highlightAll = options.highlightAllCheckbox;
- this.caseSensitive = options.caseSensitiveCheckbox;
- this.findMsg = options.findMsg;
- this.findStatusIcon = options.findStatusIcon;
- this.findPreviousButton = options.findPreviousButton;
- this.findNextButton = options.findNextButton;
- 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');
- });
- },
- dispatchEvent: function(aType, aFindPrevious) {
- var event = document.createEvent('CustomEvent');
- event.initCustomEvent('find' + aType, true, true, {
- query: this.findField.value,
- caseSensitive: this.caseSensitive.checked,
- highlightAll: this.highlightAll.checked,
- findPrevious: aFindPrevious
- });
- return window.dispatchEvent(event);
- },
- updateUIState: function(state, previous) {
- 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;
- },
- open: function() {
- if (!this.opened) {
- this.opened = true;
- this.toggleButton.classList.add('toggled');
- this.bar.classList.remove('hidden');
- }
- this.findField.select();
- this.findField.focus();
- },
- close: function() {
- if (!this.opened) return;
- this.opened = false;
- this.toggleButton.classList.remove('toggled');
- this.bar.classList.add('hidden');
- PDFFindController.active = false;
- },
- toggle: function() {
- if (this.opened) {
- this.close();
- } else {
- this.open();
- }
- }
- };
- /* globals PDFFindBar, PDFJS, FindStates, FirefoxCom, Promise */
- /**
- * Provides a "search" or "find" functionality for the PDF.
- * This object actually performs the search for a given string.
- */
- var PDFFindController = {
- startedTextExtraction: false,
- extractTextPromises: [],
- pendingFindMatches: {},
- // If active, find results will be highlighted.
- active: false,
- // Stores the text for each page.
- pageContents: [],
- pageMatches: [],
- // Currently selected match.
- selected: {
- pageIdx: -1,
- matchIdx: -1
- },
- // Where find algorithm currently is in the document.
- offset: {
- pageIdx: null,
- matchIdx: null
- },
- resumePageIdx: null,
- state: null,
- dirtyMatch: false,
- findTimeout: null,
- pdfPageSource: null,
- integratedFind: false,
- initialize: function(options) {
- if(typeof PDFFindBar === 'undefined' || PDFFindBar === null) {
- throw 'PDFFindController cannot be initialized ' +
- 'without a PDFFindController instance';
- }
- this.pdfPageSource = options.pdfPageSource;
- this.integratedFind = options.integratedFind;
- var events = [
- 'find',
- 'findagain',
- 'findhighlightallchange',
- 'findcasesensitivitychange'
- ];
- this.firstPagePromise = new Promise(function (resolve) {
- this.resolveFirstPage = resolve;
- }.bind(this));
- this.handleEvent = this.handleEvent.bind(this);
- for (var i = 0; i < events.length; i++) {
- window.addEventListener(events[i], this.handleEvent);
- }
- },
- reset: function pdfFindControllerReset() {
- this.startedTextExtraction = false;
- this.extractTextPromises = [];
- this.active = false;
- },
- calcFindMatch: function(pageIndex) {
- var pageContent = this.pageContents[pageIndex];
- var query = 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();
- }
- },
- extractText: function() {
- if (this.startedTextExtraction) {
- return;
- }
- this.startedTextExtraction = true;
- this.pageContents = [];
- var extractTextPromisesResolves = [];
- for (var i = 0, ii = this.pdfPageSource.pdfDocument.numPages; i < ii; i++) {
- this.extractTextPromises.push(new Promise(function (resolve) {
- extractTextPromisesResolves.push(resolve);
- }));
- }
- var self = this;
- function extractPageText(pageIndex) {
- self.pdfPageSource.pages[pageIndex].getTextContent().then(
- function textContentResolved(bidiTexts) {
- var str = '';
- for (var i = 0; i < bidiTexts.length; i++) {
- str += bidiTexts[i].str;
- }
- // Store the pageContent as a string.
- self.pageContents.push(str);
- extractTextPromisesResolves[pageIndex](pageIndex);
- if ((pageIndex + 1) < self.pdfPageSource.pages.length)
- extractPageText(pageIndex + 1);
- }
- );
- }
- extractPageText(0);
- },
- handleEvent: function(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(idx) {
- var page = this.pdfPageSource.pages[idx];
- if (this.selected.pageIdx === idx) {
- // 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.
- page.scrollIntoView();
- }
- if (page.textLayer) {
- page.textLayer.updateMatches();
- }
- },
- nextMatch: function() {
- var previous = this.state.findPrevious;
- var currentPageIndex = this.pdfPageSource.page - 1;
- var numPages = this.pdfPageSource.pages.length;
- 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 = [];
- 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;
- // 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(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);
- // matches were found
- return true;
- } else {
- // No matches attempt to search the next page.
- this.advanceOffsetPage(previous);
- if (offset.wrapped) {
- offset.matchIdx = null;
- if (!this.hadMatch) {
- // No point in wrapping 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;
- }
- },
- nextPageMatch: function() {
- 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(previous) {
- var offset = this.offset;
- var numPages = this.extractTextPromises.length;
- offset.pageIdx = previous ? offset.pageIdx - 1 : offset.pageIdx + 1;
- offset.matchIdx = null;
- if (offset.pageIdx >= numPages || offset.pageIdx < 0) {
- offset.pageIdx = previous ? numPages - 1 : 0;
- offset.wrapped = true;
- return;
- }
- },
- updateMatch: function(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, true);
- }
- },
- updateUIState: function(state, previous) {
- if (this.integratedFind) {
- FirefoxCom.request('updateFindControlState',
- {result: state, findPrevious: previous});
- return;
- }
- PDFFindBar.updateUIState(state, previous);
- }
- };
- var PDFHistory = {
- initialized: false,
- initialDestination: null,
- initialize: function pdfHistoryInitialize(fingerprint) {
- if (PDFJS.disableHistory || PDFView.isViewerEmbedded) {
- // The browsing history is only enabled when the viewer is standalone,
- // i.e. not when it is embedded in a web page.
- return;
- }
- this.initialized = true;
- this.reInitialized = false;
- this.allowHashChange = true;
- this.historyUnlocked = true;
- 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 {
- PDFView.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) {
- evt.preventDefault();
- evt.stopPropagation();
- if (!self.historyUnlocked) {
- return;
- }
- if (evt.state) {
- // Move back/forward in the history.
- self._goTo(evt.state);
- } else {
- // Handle the user modifying the hash of a loaded document.
- self.previousHash = window.location.hash.substring(1);
- // If the history is empty when the hash changes,
- // update the previous entry in the browser history.
- if (self.uid === 0) {
- var previousParams = (self.previousHash && self.currentBookmark &&
- self.previousHash !== self.currentBookmark) ?
- { hash: self.currentBookmark, page: self.currentPage } :
- { page: 1 };
- self.historyUnlocked = false;
- self.allowHashChange = false;
- window.history.back();
- self._pushToHistory(previousParams, false, true);
- window.history.forward();
- self.historyUnlocked = true;
- }
- self._pushToHistory({ hash: self.previousHash }, false, true);
- self._updatePreviousBookmark();
- }
- }, false);
- 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);
- },
- _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;
- }
- // If the current hash changes when moving back/forward in the history,
- // this will trigger a 'popstate' event *as well* as a 'hashchange' event.
- // Since the hash generally won't correspond to the exact the position
- // stored in the history's state object, triggering the 'hashchange' event
- // can thus corrupt the browser history.
- //
- // When the hash changes during a 'popstate' event, we *only* prevent the
- // first 'hashchange' event and immediately reset allowHashChange.
- // If it is not reset, the user would not be able to change the hash.
- var temp = this.allowHashChange;
- this.allowHashChange = true;
- return temp;
- },
- _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 :
- PDFView.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 PDFView.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 (PresentationMode.active) {
- 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) {
- PDFView.navigateTo(state.target.dest);
- } else {
- PDFView.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();
- }
- }
- }
- };
- var SecondaryToolbar = {
- opened: false,
- previousContainerHeight: null,
- newContainerHeight: null,
- initialize: function secondaryToolbarInitialize(options) {
- this.toolbar = options.toolbar;
- this.presentationMode = options.presentationMode;
- this.documentProperties = options.documentProperties;
- 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) {
- this.presentationMode.request();
- this.close();
- },
- openFileClick: function secondaryToolbarOpenFileClick(evt) {
- document.getElementById('fileInput').click();
- this.close();
- },
- printClick: function secondaryToolbarPrintClick(evt) {
- window.print();
- this.close();
- },
- downloadClick: function secondaryToolbarDownloadClick(evt) {
- PDFView.download();
- this.close();
- },
- viewBookmarkClick: function secondaryToolbarViewBookmarkClick(evt) {
- this.close();
- },
- firstPageClick: function secondaryToolbarFirstPageClick(evt) {
- PDFView.page = 1;
- this.close();
- },
- lastPageClick: function secondaryToolbarLastPageClick(evt) {
- PDFView.page = PDFView.pdfDocument.numPages;
- this.close();
- },
- pageRotateCwClick: function secondaryToolbarPageRotateCwClick(evt) {
- PDFView.rotatePages(90);
- },
- pageRotateCcwClick: function secondaryToolbarPageRotateCcwClick(evt) {
- PDFView.rotatePages(-90);
- },
- documentPropertiesClick: function secondaryToolbarDocumentPropsClick(evt) {
- this.documentProperties.show();
- 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();
- }
- }
- };
- var PasswordPrompt = {
- visible: false,
- updatePassword: null,
- reason: null,
- overlayContainer: null,
- passwordField: null,
- passwordText: null,
- passwordSubmit: null,
- passwordCancel: null,
- initialize: function secondaryToolbarInitialize(options) {
- this.overlayContainer = options.overlayContainer;
- this.passwordField = options.passwordField;
- this.passwordText = options.passwordText;
- this.passwordSubmit = options.passwordSubmit;
- this.passwordCancel = options.passwordCancel;
- // Attach the event listeners.
- this.passwordSubmit.addEventListener('click',
- this.verifyPassword.bind(this));
- this.passwordCancel.addEventListener('click', this.hide.bind(this));
- this.passwordField.addEventListener('keydown',
- function (e) {
- if (e.keyCode === 13) { // Enter key
- this.verifyPassword();
- }
- }.bind(this));
- window.addEventListener('keydown',
- function (e) {
- if (e.keyCode === 27) { // Esc key
- this.hide();
- }
- }.bind(this));
- },
- show: function passwordPromptShow() {
- if (this.visible) {
- return;
- }
- this.visible = true;
- this.overlayContainer.classList.remove('hidden');
- this.overlayContainer.firstElementChild.classList.remove('hidden');
- this.passwordField.focus();
- var promptString = mozL10n.get('password_label', null,
- 'Enter the password to open this PDF file.');
- if (this.reason === PDFJS.PasswordResponses.INCORRECT_PASSWORD) {
- promptString = mozL10n.get('password_invalid', null,
- 'Invalid password. Please try again.');
- }
- this.passwordText.textContent = promptString;
- },
- hide: function passwordPromptClose() {
- if (!this.visible) {
- return;
- }
- this.visible = false;
- this.passwordField.value = '';
- this.overlayContainer.classList.add('hidden');
- this.overlayContainer.firstElementChild.classList.add('hidden');
- },
- verifyPassword: function passwordPromptVerifyPassword() {
- var password = this.passwordField.value;
- if (password && password.length > 0) {
- this.hide();
- return this.updatePassword(password);
- }
- }
- };
- var DELAY_BEFORE_HIDING_CONTROLS = 3000; // in ms
- var SELECTOR = 'presentationControls';
- var DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS = 1000; // in ms
- var PresentationMode = {
- active: false,
- args: null,
- contextMenuOpen: false,
- prevCoords: { x: null, y: null },
- initialize: function presentationModeInitialize(options) {
- this.container = options.container;
- this.secondaryToolbar = options.secondaryToolbar;
- this.viewer = this.container.firstElementChild;
- this.firstPage = options.firstPage;
- this.lastPage = options.lastPage;
- this.pageRotateCw = options.pageRotateCw;
- this.pageRotateCcw = options.pageRotateCcw;
- this.firstPage.addEventListener('click', function() {
- this.contextMenuOpen = false;
- this.secondaryToolbar.firstPageClick();
- }.bind(this));
- this.lastPage.addEventListener('click', function() {
- this.contextMenuOpen = false;
- this.secondaryToolbar.lastPageClick();
- }.bind(this));
- this.pageRotateCw.addEventListener('click', function() {
- this.contextMenuOpen = false;
- this.secondaryToolbar.pageRotateCwClick();
- }.bind(this));
- this.pageRotateCcw.addEventListener('click', function() {
- this.contextMenuOpen = false;
- this.secondaryToolbar.pageRotateCcwClick();
- }.bind(this));
- },
- get isFullscreen() {
- return (document.fullscreenElement ||
- document.mozFullScreen ||
- document.webkitIsFullScreen ||
- document.msFullscreenElement);
- },
- /**
- * Initialize a timeout that is used to reset PDFView.currentPosition when the
- * browser transitions to fullscreen mode. Since resize events are triggered
- * multiple times during the switch to fullscreen mode, this is necessary in
- * order to prevent the page from being scrolled partially, or completely,
- * out of view when Presentation Mode is enabled.
- * Note: This is only an issue at certain zoom levels, e.g. 'page-width'.
- */
- _setSwitchInProgress: function presentationMode_setSwitchInProgress() {
- if (this.switchInProgress) {
- clearTimeout(this.switchInProgress);
- }
- this.switchInProgress = setTimeout(function switchInProgressTimeout() {
- delete this.switchInProgress;
- }.bind(this), DELAY_BEFORE_RESETTING_SWITCH_IN_PROGRESS);
- PDFView.currentPosition = null;
- },
- _resetSwitchInProgress: function presentationMode_resetSwitchInProgress() {
- if (this.switchInProgress) {
- clearTimeout(this.switchInProgress);
- delete this.switchInProgress;
- }
- },
- request: function presentationModeRequest() {
- if (!PDFView.supportsFullscreen || this.isFullscreen ||
- !this.viewer.hasChildNodes()) {
- return false;
- }
- this._setSwitchInProgress();
- 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: PDFView.page,
- previousScale: PDFView.currentScaleValue
- };
- return true;
- },
- enter: function presentationModeEnter() {
- this.active = true;
- this._resetSwitchInProgress();
- // Ensure that the correct page is scrolled into view when entering
- // Presentation Mode, by waiting until fullscreen mode in enabled.
- // Note: This is only necessary in non-Mozilla browsers.
- setTimeout(function enterPresentationModeTimeout() {
- PDFView.page = this.args.page;
- PDFView.setScale('page-fit', true);
- }.bind(this), 0);
- window.addEventListener('mousemove', this.mouseMove, false);
- window.addEventListener('mousedown', this.mouseDown, false);
- window.addEventListener('contextmenu', this.contextMenu, false);
- this.showControls();
- HandTool.enterPresentationMode();
- this.contextMenuOpen = false;
- this.container.setAttribute('contextmenu', 'viewerContextMenu');
- },
- exit: function presentationModeExit() {
- var page = PDFView.page;
- // Ensure that the correct page is scrolled into view when exiting
- // Presentation Mode, by waiting until fullscreen mode is disabled.
- // Note: This is only necessary in non-Mozilla browsers.
- setTimeout(function exitPresentationModeTimeout() {
- PDFView.setScale(this.args.previousScale);
- PDFView.page = page;
- // Keep Presentation Mode active until the page is scrolled into view,
- // to prevent issues in non-Mozilla browsers.
- this.active = false;
- this.args = null;
- }.bind(this), 0);
- window.removeEventListener('mousemove', this.mouseMove, false);
- window.removeEventListener('mousedown', this.mouseDown, false);
- window.removeEventListener('contextmenu', this.contextMenu, false);
- this.hideControls();
- PDFView.clearMouseScrollState();
- HandTool.exitPresentationMode();
- this.container.removeAttribute('contextmenu');
- this.contextMenuOpen = false;
- // Ensure that the thumbnail of the current page is visible
- // when exiting presentation mode.
- scrollIntoView(document.getElementById('thumbnailContainer' + page));
- },
- showControls: function presentationModeShowControls() {
- if (this.controlsTimeout) {
- clearTimeout(this.controlsTimeout);
- } else {
- this.container.classList.add(SELECTOR);
- }
- this.controlsTimeout = setTimeout(function hideControlsTimeout() {
- this.container.classList.remove(SELECTOR);
- delete this.controlsTimeout;
- }.bind(this), DELAY_BEFORE_HIDING_CONTROLS);
- },
- hideControls: function presentationModeHideControls() {
- if (!this.controlsTimeout) {
- return;
- }
- this.container.classList.remove(SELECTOR);
- clearTimeout(this.controlsTimeout);
- delete this.controlsTimeout;
- },
- mouseMove: function presentationModeMouseMove(evt) {
- // Workaround for a bug in WebKit browsers that causes the 'mousemove' event
- // to be fired when the cursor is changed. For details, see:
- // http://code.google.com/p/chromium/issues/detail?id=103041.
- var currCoords = { x: evt.clientX, y: evt.clientY };
- var prevCoords = PresentationMode.prevCoords;
- PresentationMode.prevCoords = currCoords;
- if (currCoords.x === prevCoords.x && currCoords.y === prevCoords.y) {
- return;
- }
- PresentationMode.showControls();
- },
- mouseDown: function presentationModeMouseDown(evt) {
- var self = PresentationMode;
- if (self.contextMenuOpen) {
- self.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();
- PDFView.page += (evt.shiftKey ? -1 : 1);
- }
- }
- },
- contextMenu: function presentationModeContextMenu(evt) {
- PresentationMode.contextMenuOpen = true;
- }
- };
- (function presentationModeClosure() {
- function presentationModeChange(e) {
- if (PresentationMode.isFullscreen) {
- PresentationMode.enter();
- } else {
- PresentationMode.exit();
- }
- }
- window.addEventListener('fullscreenchange', presentationModeChange, false);
- window.addEventListener('mozfullscreenchange', presentationModeChange, false);
- window.addEventListener('webkitfullscreenchange', presentationModeChange,
- false);
- window.addEventListener('MSFullscreenChange', presentationModeChange, false);
- })();
- /* Copyright 2013 Rob Wu <gwnRob@gmail.com>
- * https://github.com/Rob--W/grab-to-pan.js
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
- 'use strict';
- var GrabToPan = (function GrabToPanClosure() {
- /**
- * 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);
- },
- /**
- * @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;
- }
- }
- return GrabToPan;
- })();
- var HandTool = {
- initialize: function handToolInitialize(options) {
- var toggleHandTool = options.toggleHandTool;
- this.handTool = new GrabToPan({
- element: options.container,
- onActiveChanged: function(isActive) {
- if (!toggleHandTool) {
- return;
- }
- if (isActive) {
- toggleHandTool.title =
- mozL10n.get('hand_tool_disable.title', null, 'Disable hand tool');
- toggleHandTool.firstElementChild.textContent =
- mozL10n.get('hand_tool_disable_label', null, 'Disable hand tool');
- } else {
- toggleHandTool.title =
- mozL10n.get('hand_tool_enable.title', null, 'Enable hand tool');
- toggleHandTool.firstElementChild.textContent =
- mozL10n.get('hand_tool_enable_label', null, 'Enable hand tool');
- }
- }
- });
- if (toggleHandTool) {
- toggleHandTool.addEventListener('click', this.toggle.bind(this), false);
- }
- // TODO: Read global prefs and call this.handTool.activate() if needed.
- },
- toggle: function handToolToggle() {
- this.handTool.toggle();
- SecondaryToolbar.close();
- },
- enterPresentationMode: function handToolEnterPresentationMode() {
- if (this.handTool.active) {
- this.wasActive = true;
- this.handTool.deactivate();
- }
- },
- exitPresentationMode: function handToolExitPresentationMode() {
- if (this.wasActive) {
- this.wasActive = null;
- this.handTool.activate();
- }
- }
- };
- var DocumentProperties = {
- overlayContainer: null,
- fileName: '',
- fileSize: '',
- visible: false,
- // Document property fields (in the viewer).
- fileNameField: null,
- fileSizeField: null,
- titleField: null,
- authorField: null,
- subjectField: null,
- keywordsField: null,
- creationDateField: null,
- modificationDateField: null,
- creatorField: null,
- producerField: null,
- versionField: null,
- pageCountField: null,
- initialize: function documentPropertiesInitialize(options) {
- this.overlayContainer = options.overlayContainer;
- // Set the document property fields.
- this.fileNameField = options.fileNameField;
- this.fileSizeField = options.fileSizeField;
- this.titleField = options.titleField;
- this.authorField = options.authorField;
- this.subjectField = options.subjectField;
- this.keywordsField = options.keywordsField;
- this.creationDateField = options.creationDateField;
- this.modificationDateField = options.modificationDateField;
- this.creatorField = options.creatorField;
- this.producerField = options.producerField;
- this.versionField = options.versionField;
- this.pageCountField = options.pageCountField;
- // Bind the event listener for the Close button.
- if (options.closeButton) {
- options.closeButton.addEventListener('click', this.hide.bind(this));
- }
- // Bind the event listener for the Esc key (to close the dialog).
- window.addEventListener('keydown',
- function (e) {
- if (e.keyCode === 27) { // Esc key
- this.hide();
- }
- }.bind(this));
- },
- getProperties: function documentPropertiesGetProperties() {
- var self = this;
- // Get the file name.
- this.fileName = getPDFFileNameFromURL(PDFView.url);
- // Get the file size.
- PDFView.pdfDocument.getDownloadInfo().then(function(data) {
- self.setFileSize(data.length);
- });
- // Get the other document properties.
- PDFView.pdfDocument.getMetadata().then(function(data) {
- var fields = [
- { field: self.fileNameField, content: self.fileName },
- { field: self.fileSizeField, content: self.fileSize },
- { field: self.titleField, content: data.info.Title },
- { field: self.authorField, content: data.info.Author },
- { field: self.subjectField, content: data.info.Subject },
- { field: self.keywordsField, content: data.info.Keywords },
- { field: self.creationDateField,
- content: self.parseDate(data.info.CreationDate) },
- { field: self.modificationDateField,
- content: self.parseDate(data.info.ModDate) },
- { field: self.creatorField, content: data.info.Creator },
- { field: self.producerField, content: data.info.Producer },
- { field: self.versionField, content: data.info.PDFFormatVersion },
- { field: self.pageCountField, content: PDFView.pdfDocument.numPages }
- ];
- // Show the properties in the dialog.
- for (var item in fields) {
- var element = fields[item];
- if (element.field && element.content !== undefined &&
- element.content !== '') {
- element.field.textContent = element.content;
- }
- }
- });
- },
- setFileSize: function documentPropertiesSetFileSize(fileSize) {
- var kb = fileSize / 1024;
- if (kb < 1024) {
- this.fileSize = mozL10n.get('document_properties_kb', {
- size_kb: (+kb.toPrecision(3)).toLocaleString(),
- size_b: fileSize.toLocaleString()
- }, '{{size_kb}} KB ({{size_b}} bytes)');
- } else {
- this.fileSize = mozL10n.get('document_properties_mb', {
- size_mb: (+(kb / 1024).toPrecision(3)).toLocaleString(),
- size_b: fileSize.toLocaleString()
- }, '{{size_mb}} MB ({{size_b}} bytes)');
- }
- },
- show: function documentPropertiesShow() {
- if (this.visible) {
- return;
- }
- this.visible = true;
- this.overlayContainer.classList.remove('hidden');
- this.overlayContainer.lastElementChild.classList.remove('hidden');
- this.getProperties();
- },
- hide: function documentPropertiesClose() {
- if (!this.visible) {
- return;
- }
- this.visible = false;
- this.overlayContainer.classList.add('hidden');
- this.overlayContainer.lastElementChild.classList.add('hidden');
- },
- parseDate: function documentPropertiesParseDate(inputDate) {
- // This is implemented according to the PDF specification (see
- // http://www.gnupdf.org/Date for an overview), 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}}');
- }
- };
- var PDFView = {
- pages: [],
- thumbnails: [],
- currentScale: UNKNOWN_SCALE,
- currentScaleValue: null,
- initialBookmark: document.location.hash.substring(1),
- container: null,
- thumbnailContainer: null,
- initialized: false,
- fellback: false,
- pdfDocument: null,
- sidebarOpen: false,
- pageViewScroll: null,
- thumbnailViewScroll: null,
- pageRotation: 0,
- mouseScrollTimeStamp: 0,
- mouseScrollDelta: 0,
- lastScroll: 0,
- previousPageNumber: 1,
- isViewerEmbedded: (window.parent !== window),
- idleTimeout: null,
- currentPosition: null,
- // called once when the document is loaded
- initialize: function pdfViewInitialize() {
- var self = this;
- var container = this.container = document.getElementById('viewerContainer');
- this.pageViewScroll = {};
- this.watchScroll(container, this.pageViewScroll, updateViewarea);
- var thumbnailContainer = this.thumbnailContainer =
- document.getElementById('thumbnailView');
- this.thumbnailViewScroll = {};
- this.watchScroll(thumbnailContainer, this.thumbnailViewScroll,
- this.renderHighestPriority.bind(this));
- PDFFindBar.initialize({
- bar: document.getElementById('findbar'),
- toggleButton: document.getElementById('viewFind'),
- findField: document.getElementById('findInput'),
- highlightAllCheckbox: document.getElementById('findHighlightAll'),
- caseSensitiveCheckbox: document.getElementById('findMatchCase'),
- findMsg: document.getElementById('findMsg'),
- findStatusIcon: document.getElementById('findStatusIcon'),
- findPreviousButton: document.getElementById('findPrevious'),
- findNextButton: document.getElementById('findNext')
- });
- PDFFindController.initialize({
- pdfPageSource: this,
- integratedFind: this.supportsIntegratedFind
- });
- HandTool.initialize({
- container: container,
- toggleHandTool: document.getElementById('toggleHandTool')
- });
- SecondaryToolbar.initialize({
- toolbar: document.getElementById('secondaryToolbar'),
- presentationMode: PresentationMode,
- 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'),
- documentProperties: DocumentProperties,
- documentPropertiesButton: document.getElementById('documentProperties')
- });
- PasswordPrompt.initialize({
- overlayContainer: document.getElementById('overlayContainer'),
- passwordField: document.getElementById('password'),
- passwordText: document.getElementById('passwordText'),
- passwordSubmit: document.getElementById('passwordSubmit'),
- passwordCancel: document.getElementById('passwordCancel')
- });
- PresentationMode.initialize({
- container: container,
- secondaryToolbar: SecondaryToolbar,
- firstPage: document.getElementById('contextFirstPage'),
- lastPage: document.getElementById('contextLastPage'),
- pageRotateCw: document.getElementById('contextPageRotateCw'),
- pageRotateCcw: document.getElementById('contextPageRotateCcw')
- });
- DocumentProperties.initialize({
- overlayContainer: document.getElementById('overlayContainer'),
- closeButton: document.getElementById('documentPropertiesClose'),
- fileNameField: document.getElementById('fileNameField'),
- fileSizeField: document.getElementById('fileSizeField'),
- titleField: document.getElementById('titleField'),
- authorField: document.getElementById('authorField'),
- subjectField: document.getElementById('subjectField'),
- keywordsField: document.getElementById('keywordsField'),
- creationDateField: document.getElementById('creationDateField'),
- modificationDateField: document.getElementById('modificationDateField'),
- creatorField: document.getElementById('creatorField'),
- producerField: document.getElementById('producerField'),
- versionField: document.getElementById('versionField'),
- pageCountField: document.getElementById('pageCountField')
- });
- this.initialized = true;
- container.addEventListener('scroll', function() {
- self.lastScroll = Date.now();
- }, false);
- },
- getPage: function pdfViewGetPage(n) {
- return this.pdfDocument.getPage(n);
- },
- // Helper function to keep track whether a div was scrolled up or down and
- // then call a callback.
- watchScroll: function pdfViewWatchScroll(viewAreaElement, state, callback) {
- state.down = true;
- state.lastY = viewAreaElement.scrollTop;
- viewAreaElement.addEventListener('scroll', function webViewerScroll(evt) {
- var currentY = viewAreaElement.scrollTop;
- var lastY = state.lastY;
- if (currentY > lastY)
- state.down = true;
- else if (currentY < lastY)
- state.down = false;
- // else do nothing and use previous value
- state.lastY = currentY;
- callback();
- }, true);
- },
- _setScaleUpdatePages: function pdfView_setScaleUpdatePages(
- newScale, newValue, resetAutoSettings, noScroll) {
- this.currentScaleValue = newValue;
- if (newScale === this.currentScale) {
- 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.page, dest;
- if (this.currentPosition && !IGNORE_CURRENT_POSITION_ON_ZOOM) {
- page = this.currentPosition.page;
- dest = [null, { name: 'XYZ' }, this.currentPosition.left,
- this.currentPosition.top, null];
- }
- this.pages[page - 1].scrollIntoView(dest);
- }
- var event = document.createEvent('UIEvents');
- event.initUIEvent('scalechange', false, false, window, 0);
- event.scale = newScale;
- event.resetAutoSettings = resetAutoSettings;
- window.dispatchEvent(event);
- },
- setScale: function pdfViewSetScale(value, resetAutoSettings, noScroll) {
- if (value === 'custom') {
- return;
- }
- var scale = parseFloat(value);
- if (scale > 0) {
- this._setScaleUpdatePages(scale, value, true, noScroll);
- } else {
- var currentPage = this.pages[this.page - 1];
- if (!currentPage) {
- return;
- }
- var pageWidthScale = (this.container.clientWidth - SCROLLBAR_PADDING) /
- currentPage.width * currentPage.scale;
- var pageHeightScale = (this.container.clientHeight - VERTICAL_PADDING) /
- 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':
- scale = Math.min(MAX_AUTO_SCALE, pageWidthScale);
- break;
- default:
- console.error('pdfViewSetScale: \'' + value +
- '\' is an unknown zoom value.');
- return;
- }
- this._setScaleUpdatePages(scale, value, resetAutoSettings, noScroll);
- selectScaleOption(value);
- }
- },
- zoomIn: function pdfViewZoomIn(ticks) {
- var newScale = this.currentScale;
- do {
- newScale = (newScale * DEFAULT_SCALE_DELTA).toFixed(2);
- newScale = Math.ceil(newScale * 10) / 10;
- newScale = Math.min(MAX_SCALE, newScale);
- } while (--ticks && newScale < MAX_SCALE);
- this.setScale(newScale, true);
- },
- zoomOut: function pdfViewZoomOut(ticks) {
- var newScale = this.currentScale;
- do {
- newScale = (newScale / DEFAULT_SCALE_DELTA).toFixed(2);
- newScale = Math.floor(newScale * 10) / 10;
- newScale = Math.max(MIN_SCALE, newScale);
- } while (--ticks && newScale > MIN_SCALE);
- this.setScale(newScale, true);
- },
- set page(val) {
- var pages = this.pages;
- var event = document.createEvent('UIEvents');
- event.initUIEvent('pagechange', false, false, window, 0);
- if (!(0 < val && val <= pages.length)) {
- this.previousPageNumber = val;
- event.pageNumber = this.page;
- window.dispatchEvent(event);
- return;
- }
- pages[val - 1].updateStats();
- this.previousPageNumber = currentPageNumber;
- currentPageNumber = val;
- event.pageNumber = val;
- window.dispatchEvent(event);
- // checking if the this.page was called from the updateViewarea function:
- // avoiding the creation of two "set page" method (internal and public)
- if (updateViewarea.inProgress) {
- return;
- }
- // Avoid scrolling the first page during loading
- if (this.loading && val === 1) {
- return;
- }
- pages[val - 1].scrollIntoView();
- },
- get page() {
- return currentPageNumber;
- },
- get supportsPrinting() {
- var canvas = document.createElement('canvas');
- var value = 'mozPrintCallback' in canvas;
- // shadow
- Object.defineProperty(this, 'supportsPrinting', { value: value,
- enumerable: true,
- configurable: true,
- writable: false });
- return 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;
- } else if (this.isViewerEmbedded) {
- // Need to check if the viewer is embedded as well, to prevent issues with
- // presentation mode when the viewer is embedded in '<object>' tags.
- support = false;
- }
- Object.defineProperty(this, 'supportsFullscreen', { value: support,
- enumerable: true,
- configurable: true,
- writable: false });
- return support;
- },
- get supportsIntegratedFind() {
- var support = false;
- Object.defineProperty(this, 'supportsIntegratedFind', { value: support,
- enumerable: true,
- configurable: true,
- writable: false });
- return support;
- },
- get supportsDocumentFonts() {
- var support = true;
- Object.defineProperty(this, 'supportsDocumentFonts', { value: support,
- enumerable: true,
- configurable: true,
- writable: false });
- return support;
- },
- get supportsDocumentColors() {
- var support = true;
- Object.defineProperty(this, 'supportsDocumentColors', { value: support,
- enumerable: true,
- configurable: true,
- writable: false });
- return support;
- },
- get loadingBar() {
- var bar = new ProgressBar('#loadingBar', {});
- Object.defineProperty(this, 'loadingBar', { value: bar,
- enumerable: true,
- configurable: true,
- writable: false });
- return bar;
- },
- get isHorizontalScrollbarEnabled() {
- return (PresentationMode.active ? false :
- (this.container.scrollWidth > this.container.clientWidth));
- },
- setTitleUsingUrl: function pdfViewSetTitleUsingUrl(url) {
- this.url = url;
- try {
- this.setTitle(decodeURIComponent(getFileName(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) {
- document.title = title;
- },
- // TODO(mack): This function signature should really be pdfViewOpen(url, args)
- open: function pdfViewOpen(url, scale, password,
- pdfDataRangeTransport, args) {
- var parameters = {password: password};
- if (typeof url === 'string') { // URL
- this.setTitleUsingUrl(url);
- parameters.url = url;
- } else if (url && 'byteLength' in url) { // ArrayBuffer
- parameters.data = url;
- }
- if (args) {
- for (var prop in args) {
- parameters[prop] = args[prop];
- }
- }
- // Terminate worker of the previous document if any.
- if (this.pdfDocument) {
- this.pdfDocument.destroy();
- }
- this.pdfDocument = null;
- var self = this;
- self.loading = true;
- var passwordNeeded = function passwordNeeded(updatePassword, reason) {
- PasswordPrompt.updatePassword = updatePassword;
- PasswordPrompt.reason = reason;
- PasswordPrompt.show();
- };
- function getDocumentProgress(progressData) {
- self.progress(progressData.loaded / progressData.total);
- }
- PDFJS.getDocument(parameters, pdfDataRangeTransport, passwordNeeded,
- getDocumentProgress).then(
- function getDocumentCallback(pdfDocument) {
- self.load(pdfDocument, scale);
- self.loading = false;
- },
- function getDocumentError(message, exception) {
- var loadingErrorMessage = mozL10n.get('loading_error', null,
- 'An error occurred while loading the PDF.');
- if (exception && exception.name === 'InvalidPDFException') {
- // change error message also for other builds
- var loadingErrorMessage = mozL10n.get('invalid_file_error', null,
- 'Invalid or corrupted PDF file.');
- }
- if (exception && exception.name === 'MissingPDFException') {
- // special message for missing PDF's
- var loadingErrorMessage = mozL10n.get('missing_file_error', null,
- 'Missing PDF file.');
- }
- var moreInfo = {
- message: message
- };
- self.error(loadingErrorMessage, moreInfo);
- self.loading = false;
- }
- );
- },
- download: function pdfViewDownload() {
- function noData() {
- 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).
- PDFView.error('PDF failed to download.');
- };
- if (!this.pdfDocument) { // the PDF is not ready yet
- noData();
- return;
- }
- this.pdfDocument.getData().then(
- function getDataSuccess(data) {
- var blob = PDFJS.createBlob(data, 'application/pdf');
- downloadManager.download(blob, url, filename);
- },
- noData // Error occurred try downloading with just the url.
- ).then(null, noData);
- },
- fallback: function pdfViewFallback(featureId) {
- return;
- },
- navigateTo: function pdfViewNavigateTo(dest) {
- var destString = '';
- var self = this;
- var goToDestination = function(destRef) {
- self.pendingRefStr = null;
- // dest array looks like that: <page-ref> </XYZ|FitXXX> <args..>
- var pageNumber = destRef instanceof Object ?
- self.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] :
- (destRef + 1);
- if (pageNumber) {
- if (pageNumber > self.pages.length) {
- pageNumber = self.pages.length;
- }
- var currentPage = self.pages[pageNumber - 1];
- currentPage.scrollIntoView(dest);
- // Update the browsing history.
- PDFHistory.push({ dest: dest, hash: destString, page: pageNumber });
- } else {
- self.pdfDocument.getPageIndex(destRef).then(function (pageIndex) {
- var pageNum = pageIndex + 1;
- self.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] = pageNum;
- goToDestination(destRef);
- });
- }
- };
- this.destinationsPromise.then(function() {
- if (typeof dest === 'string') {
- destString = dest;
- dest = self.destinations[dest];
- }
- if (!(dest instanceof Array)) {
- return; // invalid destination
- }
- goToDestination(dest[0]);
- });
- },
- getDestinationHash: function pdfViewGetDestinationHash(dest) {
- if (typeof dest === 'string')
- return PDFView.getAnchorUrl('#' + escape(dest));
- if (dest instanceof Array) {
- var destRef = dest[0]; // see navigateTo method for dest format
- var pageNumber = destRef instanceof Object ?
- this.pagesRefMap[destRef.num + ' ' + destRef.gen + ' R'] :
- (destRef + 1);
- if (pageNumber) {
- var pdfOpenParams = PDFView.getAnchorUrl('#page=' + pageNumber);
- var destKind = dest[1];
- if (typeof destKind === 'object' && 'name' in destKind &&
- destKind.name == 'XYZ') {
- var scale = (dest[4] || this.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 '';
- },
- /**
- * Prefix the full url on anchor links to make sure that links are resolved
- * relative to the current URL instead of the one defined in <base href>.
- * @param {String} anchor The anchor hash, including the #.
- */
- getAnchorUrl: function getAnchorUrl(anchor) {
- return anchor;
- },
- /**
- * 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: PDFJS.version || '?', build: PDFJS.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 errorWrapper = document.getElementById('errorWrapper');
- errorWrapper.removeAttribute('hidden');
- var errorMessage = document.getElementById('errorMessage');
- errorMessage.textContent = message;
- var closeButton = document.getElementById('errorClose');
- closeButton.onclick = function() {
- errorWrapper.setAttribute('hidden', 'true');
- };
- var errorMoreInfo = document.getElementById('errorMoreInfo');
- var moreInfoButton = document.getElementById('errorShowMore');
- var lessInfoButton = document.getElementById('errorShowLess');
- 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 > PDFView.loadingBar.percent) {
- PDFView.loadingBar.percent = percent;
- }
- },
- load: function pdfViewLoad(pdfDocument, scale) {
- var self = this;
- var isOnePageRenderedResolved = false;
- var resolveOnePageRendered = null;
- var onePageRendered = new Promise(function (resolve) {
- resolveOnePageRendered = resolve;
- });
- function bindOnAfterDraw(pageView, thumbnailView) {
- // when page is painted, using the image as thumbnail base
- pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
- if (!isOnePageRenderedResolved) {
- isOnePageRenderedResolved = true;
- resolveOnePageRendered();
- }
- thumbnailView.setImage(pageView.canvas);
- };
- }
- PDFFindController.reset();
- this.pdfDocument = pdfDocument;
- var errorWrapper = document.getElementById('errorWrapper');
- errorWrapper.setAttribute('hidden', 'true');
- pdfDocument.getDownloadInfo().then(function() {
- PDFView.loadingBar.hide();
- var outerContainer = document.getElementById('outerContainer');
- outerContainer.classList.remove('loadingInProgress');
- });
- var thumbsView = document.getElementById('thumbnailView');
- thumbsView.parentNode.scrollTop = 0;
- while (thumbsView.hasChildNodes())
- thumbsView.removeChild(thumbsView.lastChild);
- if ('_loadingInterval' in thumbsView)
- clearInterval(thumbsView._loadingInterval);
- var container = document.getElementById('viewer');
- while (container.hasChildNodes())
- container.removeChild(container.lastChild);
- var pagesCount = pdfDocument.numPages;
- var id = pdfDocument.fingerprint;
- document.getElementById('numPages').textContent =
- mozL10n.get('page_of', {pageCount: pagesCount}, 'of {{pageCount}}');
- document.getElementById('pageNumber').max = pagesCount;
- var prefs = PDFView.prefs = new Preferences();
- PDFView.documentFingerprint = id;
- var store = PDFView.store = new ViewHistory(id);
- this.pageRotation = 0;
- var pages = this.pages = [];
- var pagesRefMap = this.pagesRefMap = {};
- var thumbnails = this.thumbnails = [];
- var resolvePagesPromise;
- var pagesPromise = new Promise(function (resolve) {
- resolvePagesPromise = resolve;
- });
- this.pagesPromise = pagesPromise;
- var firstPagePromise = pdfDocument.getPage(1);
- // Fetch a single page so we can get a viewport that will be the default
- // viewport for all pages
- firstPagePromise.then(function(pdfPage) {
- var viewport = pdfPage.getViewport((scale || 1.0) * CSS_UNITS);
- for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
- var viewportClone = viewport.clone();
- var pageView = new PageView(container, pageNum, scale,
- self.navigateTo.bind(self),
- viewportClone);
- var thumbnailView = new ThumbnailView(thumbsView, pageNum,
- viewportClone);
- bindOnAfterDraw(pageView, thumbnailView);
- pages.push(pageView);
- thumbnails.push(thumbnailView);
- }
- // 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 (!PDFJS.disableAutoFetch) {
- var getPagesLeft = pagesCount;
- for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
- pdfDocument.getPage(pageNum).then(function (pageNum, pdfPage) {
- var pageView = pages[pageNum - 1];
- if (!pageView.pdfPage) {
- pageView.setPdfPage(pdfPage);
- }
- var refStr = pdfPage.ref.num + ' ' + pdfPage.ref.gen + ' R';
- pagesRefMap[refStr] = pageNum;
- 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('documentload', true, true, {});
- window.dispatchEvent(event);
- PDFView.loadingBar.setWidth(container);
- PDFFindController.resolveFirstPage();
- });
- var prefsPromise = prefs.initializedPromise;
- var storePromise = store.initializedPromise;
- Promise.all([firstPagePromise, prefsPromise, storePromise]).
- then(function() {
- var showPreviousViewOnLoad = prefs.get('showPreviousViewOnLoad');
- var defaultZoomValue = prefs.get('defaultZoomValue');
- var storedHash = null;
- if (showPreviousViewOnLoad && store.get('exists', false)) {
- var pageNum = store.get('page', '1');
- var zoom = defaultZoomValue || store.get('zoom', PDFView.currentScale);
- var left = store.get('scrollLeft', '0');
- var top = store.get('scrollTop', '0');
- storedHash = 'page=' + pageNum + '&zoom=' + zoom + ',' +
- left + ',' + top;
- } else if (defaultZoomValue) {
- storedHash = 'page=1&zoom=' + defaultZoomValue;
- }
- // Initialize the browsing history.
- PDFHistory.initialize(self.documentFingerprint);
- self.setInitialView(storedHash, scale);
- // Make all navigation keys work on document load,
- // unless the viewer is embedded in a web page.
- if (!self.isViewerEmbedded) {
- self.container.focus();
- }
- });
- pagesPromise.then(function() {
- if (PDFView.supportsPrinting) {
- pdfDocument.getJavaScript().then(function(javaScript) {
- if (javaScript.length) {
- console.warn('Warning: JavaScript is not supported');
- PDFView.fallback(PDFJS.UNSUPPORTED_FEATURES.javaScript);
- }
- // Hack to support auto printing.
- var regex = /\bprint\s*\(/g;
- for (var i = 0, ii = javaScript.length; i < ii; i++) {
- var js = javaScript[i];
- if (js && regex.test(js)) {
- setTimeout(function() {
- window.print();
- });
- return;
- }
- }
- });
- }
- });
- var destinationsPromise =
- this.destinationsPromise = pdfDocument.getDestinations();
- destinationsPromise.then(function(destinations) {
- self.destinations = destinations;
- });
- // outline depends on destinations and pagesRefMap
- var promises = [pagesPromise, destinationsPromise,
- PDFView.animationStartedPromise];
- Promise.all(promises).then(function() {
- pdfDocument.getOutline().then(function(outline) {
- self.outline = new DocumentOutlineView(outline);
- document.getElementById('viewOutline').disabled = !outline;
- if (outline && prefs.get('ifAvailableShowOutlineOnLoad')) {
- if (!self.sidebarOpen) {
- document.getElementById('sidebarToggle').click();
- }
- self.switchSidebarView('outline');
- }
- });
- });
- 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 || '-') +
- ' / ' + (info.Creator || '-') + ']' +
- (PDFJS.version ? ' (PDF.js: ' + PDFJS.version + ')' : ''));
- var pdfTitle;
- if (metadata) {
- if (metadata.has('dc:title'))
- pdfTitle = metadata.get('dc: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');
- PDFView.fallback(PDFJS.UNSUPPORTED_FEATURES.forms);
- }
- });
- },
- setInitialView: function pdfViewSetInitialView(storedHash, scale) {
- // Reset the current scale, as otherwise the page's scale might not get
- // updated if the zoom level stayed the same.
- this.currentScale = 0;
- this.currentScaleValue = null;
- // When opening a new file (when one is already loaded in the viewer):
- // Reset 'currentPageNumber', since otherwise the page's scale will be wrong
- // if 'currentPageNumber' is larger than the number of pages in the file.
- document.getElementById('pageNumber').value = currentPageNumber = 1;
- // Reset the current position when loading a new file,
- // to prevent displaying the wrong position in the document.
- this.currentPosition = null;
- if (PDFHistory.initialDestination) {
- this.navigateTo(PDFHistory.initialDestination);
- PDFHistory.initialDestination = null;
- } else if (this.initialBookmark) {
- this.setHash(this.initialBookmark);
- PDFHistory.push({ hash: this.initialBookmark }, !!this.initialBookmark);
- this.initialBookmark = null;
- } else if (storedHash) {
- this.setHash(storedHash);
- } else if (scale) {
- this.setScale(scale, true);
- this.page = 1;
- }
- if (PDFView.currentScale === UNKNOWN_SCALE) {
- // Scale was not initialized: invalid bookmark or scale was not specified.
- // Setting the default one.
- this.setScale(DEFAULT_SCALE, true);
- }
- },
- renderHighestPriority: function pdfViewRenderHighestPriority() {
- if (PDFView.idleTimeout) {
- clearTimeout(PDFView.idleTimeout);
- PDFView.idleTimeout = null;
- }
- // Pages have a higher priority than thumbnails, so check them first.
- var visiblePages = this.getVisiblePages();
- var pageView = this.getHighestPriority(visiblePages, this.pages,
- this.pageViewScroll.down);
- if (pageView) {
- this.renderView(pageView, 'page');
- return;
- }
- // No pages needed rendering so check thumbnails.
- if (this.sidebarOpen) {
- var visibleThumbs = this.getVisibleThumbs();
- var thumbView = this.getHighestPriority(visibleThumbs,
- this.thumbnails,
- this.thumbnailViewScroll.down);
- if (thumbView) {
- this.renderView(thumbView, 'thumbnail');
- return;
- }
- }
- PDFView.idleTimeout = setTimeout(function () {
- PDFView.cleanup();
- }, CLEANUP_TIMEOUT);
- },
- cleanup: function pdfViewCleanup() {
- 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();
- }
- }
- this.pdfDocument.cleanup();
- },
- getHighestPriority: function pdfViewGetHighestPriority(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 false;
- },
- isViewFinished: function pdfViewIsViewFinished(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.
- renderView: function pdfViewRender(view, type) {
- var state = view.renderingState;
- switch (state) {
- case RenderingStates.FINISHED:
- return false;
- case RenderingStates.PAUSED:
- PDFView.highestPriorityPage = type + view.id;
- view.resume();
- break;
- case RenderingStates.RUNNING:
- PDFView.highestPriorityPage = type + view.id;
- break;
- case RenderingStates.INITIAL:
- PDFView.highestPriorityPage = type + view.id;
- view.draw(this.renderHighestPriority.bind(this));
- break;
- }
- return true;
- },
- setHash: function pdfViewSetHash(hash) {
- if (!hash)
- return;
- if (hash.indexOf('=') >= 0) {
- var params = PDFView.parseQueryString(hash);
- // borrowing syntax from "Parameters for Opening PDF Files"
- if ('nameddest' in params) {
- PDFHistory.updateNextHashParam(params.nameddest);
- PDFView.navigateTo(params.nameddest);
- return;
- }
- var pageNumber, dest;
- if ('page' in params) {
- pageNumber = (params.page | 0) || 1;
- }
- if ('zoom' in params) {
- var zoomArgs = params.zoom.split(','); // scale,left,top
- // building destination array
- // If the zoom value, it has to get divided by 100. If it is a string,
- // it should stay as it is.
- var zoomArg = zoomArgs[0];
- var zoomArgNumber = parseFloat(zoomArg);
- if (zoomArgNumber) {
- zoomArg = zoomArgNumber / 100;
- }
- dest = [null, {name: 'XYZ'},
- zoomArgs.length > 1 ? (zoomArgs[1] | 0) : null,
- zoomArgs.length > 2 ? (zoomArgs[2] | 0) : null,
- zoomArg];
- }
- if (dest) {
- var currentPage = this.pages[(pageNumber || this.page) - 1];
- currentPage.scrollIntoView(dest);
- } else if (pageNumber) {
- this.page = pageNumber; // simple page
- }
- if ('pagemode' in params) {
- var toggle = document.getElementById('sidebarToggle');
- if (params.pagemode === 'thumbs' || params.pagemode === 'bookmarks') {
- if (!this.sidebarOpen) {
- toggle.click();
- }
- this.switchSidebarView(params.pagemode === 'thumbs' ?
- 'thumbs' : 'outline');
- } else if (params.pagemode === 'none' && this.sidebarOpen) {
- toggle.click();
- }
- }
- } else if (/^\d+$/.test(hash)) { // page number
- this.page = hash;
- } else { // named destination
- PDFHistory.updateNextHashParam(unescape(hash));
- PDFView.navigateTo(unescape(hash));
- }
- },
- switchSidebarView: function pdfViewSwitchSidebarView(view) {
- var thumbsView = document.getElementById('thumbnailView');
- var outlineView = document.getElementById('outlineView');
- var thumbsButton = document.getElementById('viewThumbnail');
- var outlineButton = document.getElementById('viewOutline');
- switch (view) {
- case 'thumbs':
- var wasOutlineViewVisible = thumbsView.classList.contains('hidden');
- thumbsButton.classList.add('toggled');
- outlineButton.classList.remove('toggled');
- thumbsView.classList.remove('hidden');
- outlineView.classList.add('hidden');
- PDFView.renderHighestPriority();
- if (wasOutlineViewVisible) {
- // Ensure that the thumbnail of the current page is visible
- // when switching from the outline view.
- scrollIntoView(document.getElementById('thumbnailContainer' +
- this.page));
- }
- break;
- case 'outline':
- thumbsButton.classList.remove('toggled');
- outlineButton.classList.add('toggled');
- thumbsView.classList.add('hidden');
- outlineView.classList.remove('hidden');
- if (outlineButton.getAttribute('disabled'))
- return;
- break;
- }
- },
- getVisiblePages: function pdfViewGetVisiblePages() {
- if (!PresentationMode.active) {
- return this.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.page - 1];
- visible.push({ id: currentPage.id, view: currentPage });
- return { first: currentPage, last: currentPage, views: visible };
- }
- },
- getVisibleThumbs: function pdfViewGetVisibleThumbs() {
- return this.getVisibleElements(this.thumbnailContainer, this.thumbnails);
- },
- // Generic helper to find out what elements are visible within a scroll pane.
- getVisibleElements: function pdfViewGetVisibleElements(
- scrollEl, views, sortByVisibility) {
- var top = scrollEl.scrollTop, bottom = top + scrollEl.clientHeight;
- var left = scrollEl.scrollLeft, right = left + scrollEl.clientWidth;
- var visible = [], view;
- var currentHeight, viewHeight, hiddenHeight, percentHeight;
- var currentWidth, viewWidth;
- for (var i = 0, ii = views.length; i < ii; ++i) {
- view = views[i];
- currentHeight = view.el.offsetTop + view.el.clientTop;
- viewHeight = view.el.clientHeight;
- if ((currentHeight + viewHeight) < top) {
- continue;
- }
- if (currentHeight > bottom) {
- break;
- }
- currentWidth = view.el.offsetLeft + view.el.clientLeft;
- viewWidth = view.el.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};
- },
- // Helper function to parse query string (e.g. ?param1=value&parm2=...).
- parseQueryString: function pdfViewParseQueryString(query) {
- var parts = query.split('&');
- var params = {};
- for (var i = 0, ii = parts.length; i < parts.length; ++i) {
- var param = parts[i].split('=');
- var key = param[0];
- var value = param.length > 1 ? param[1] : null;
- params[decodeURIComponent(key)] = decodeURIComponent(value);
- }
- return params;
- },
- 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;
- if (!this.pages.length) {
- alertNotReady = true;
- } else {
- for (var i = 0, ii = this.pages.length; i < ii; ++i) {
- if (!this.pages[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;
- }
- var body = document.querySelector('body');
- body.setAttribute('data-mozPrintCallback', true);
- for (var i = 0, ii = this.pages.length; i < ii; ++i) {
- this.pages[i].beforePrint();
- }
- },
- afterPrint: function pdfViewSetupAfterPrint() {
- var div = document.getElementById('printContainer');
- while (div.hasChildNodes())
- div.removeChild(div.lastChild);
- },
- rotatePages: function pdfViewRotatePages(delta) {
- var currentPage = this.pages[this.page - 1];
- this.pageRotation = (this.pageRotation + 360 + delta) % 360;
- for (var i = 0, l = this.pages.length; i < l; i++) {
- var page = this.pages[i];
- page.update(page.scale, this.pageRotation);
- }
- for (var i = 0, l = this.thumbnails.length; i < l; i++) {
- var thumb = this.thumbnails[i];
- thumb.update(this.pageRotation);
- }
- this.setScale(this.currentScaleValue, true, true);
- this.renderHighestPriority();
- if (currentPage) {
- currentPage.scrollIntoView();
- }
- },
- /**
- * This function flips the page in presentation mode if the user scrolls up
- * or down with large enough motion and prevents page flipping too often.
- *
- * @this {PDFView}
- * @param {number} mouseScrollDelta The delta value from the mouse event.
- */
- mouseScroll: function pdfViewMouseScroll(mouseScrollDelta) {
- var MOUSE_SCROLL_COOLDOWN_TIME = 50;
- var currentTime = (new Date()).getTime();
- var storedTime = this.mouseScrollTimeStamp;
- // In case one page has already been flipped there is a cooldown time
- // which has to expire before next page can be scrolled on to.
- if (currentTime > storedTime &&
- currentTime - storedTime < MOUSE_SCROLL_COOLDOWN_TIME)
- return;
- // In case the user decides to scroll to the opposite direction than before
- // clear the accumulated delta.
- if ((this.mouseScrollDelta > 0 && mouseScrollDelta < 0) ||
- (this.mouseScrollDelta < 0 && mouseScrollDelta > 0))
- this.clearMouseScrollState();
- this.mouseScrollDelta += mouseScrollDelta;
- var PAGE_FLIP_THRESHOLD = 120;
- if (Math.abs(this.mouseScrollDelta) >= PAGE_FLIP_THRESHOLD) {
- var PageFlipDirection = {
- UP: -1,
- DOWN: 1
- };
- // In presentation mode scroll one page at a time.
- var pageFlipDirection = (this.mouseScrollDelta > 0) ?
- PageFlipDirection.UP :
- PageFlipDirection.DOWN;
- this.clearMouseScrollState();
- var currentPage = this.page;
- // In case we are already on the first or the last page there is no need
- // to do anything.
- if ((currentPage == 1 && pageFlipDirection == PageFlipDirection.UP) ||
- (currentPage == this.pages.length &&
- pageFlipDirection == PageFlipDirection.DOWN))
- return;
- this.page += pageFlipDirection;
- this.mouseScrollTimeStamp = currentTime;
- }
- },
- /**
- * This function clears the member attributes used with mouse scrolling in
- * presentation mode.
- *
- * @this {PDFView}
- */
- clearMouseScrollState: function pdfViewClearMouseScrollState() {
- this.mouseScrollTimeStamp = 0;
- this.mouseScrollDelta = 0;
- }
- };
- var PageView = function pageView(container, id, scale,
- navigateTo, defaultViewport) {
- this.id = id;
- this.rotation = 0;
- this.scale = scale || 1.0;
- this.viewport = defaultViewport;
- this.pdfPageRotate = defaultViewport.rotation;
- this.renderingState = RenderingStates.INITIAL;
- this.resume = null;
- this.textLayer = null;
- this.zoomLayer = null;
- this.annotationLayer = null;
- var anchor = document.createElement('a');
- anchor.name = '' + this.id;
- var div = this.el = 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';
- container.appendChild(anchor);
- container.appendChild(div);
- this.setPdfPage = function pageViewSetPdfPage(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();
- };
- this.destroy = function pageViewDestroy() {
- this.zoomLayer = null;
- this.reset();
- if (this.pdfPage) {
- this.pdfPage.destroy();
- }
- };
- this.reset = function pageViewReset() {
- if (this.renderTask) {
- this.renderTask.cancel();
- }
- this.resume = null;
- this.renderingState = RenderingStates.INITIAL;
- div.style.width = Math.floor(this.viewport.width) + 'px';
- div.style.height = Math.floor(this.viewport.height) + 'px';
- var childNodes = div.childNodes;
- for (var i = div.childNodes.length - 1; i >= 0; i--) {
- var node = childNodes[i];
- if (this.zoomLayer && this.zoomLayer === node) {
- continue;
- }
- div.removeChild(node);
- }
- div.removeAttribute('data-loaded');
- this.annotationLayer = null;
- delete this.canvas;
- this.loadingIconDiv = document.createElement('div');
- this.loadingIconDiv.className = 'loadingIcon';
- div.appendChild(this.loadingIconDiv);
- };
- this.update = function pageViewUpdate(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
- });
- if (USE_ONLY_CSS_ZOOM && this.canvas) {
- this.cssTransform(this.canvas);
- return;
- } else if (this.canvas && !this.zoomLayer) {
- this.zoomLayer = this.canvas.parentNode;
- this.zoomLayer.style.position = 'absolute';
- }
- if (this.zoomLayer) {
- this.cssTransform(this.zoomLayer.firstChild);
- }
- this.reset();
- };
- this.cssTransform = function pageCssTransform(canvas) {
- // Scale canvas, canvas wrapper, and page container.
- var width = this.viewport.width;
- var height = this.viewport.height;
- 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, so 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 textRelativeRotation = this.viewport.rotation -
- this.textLayer.viewport.rotation;
- var textAbsRotation = Math.abs(textRelativeRotation);
- var scale = (width / canvas.width);
- if (textAbsRotation === 90 || textAbsRotation === 270) {
- scale = width / canvas.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 (USE_ONLY_CSS_ZOOM && this.annotationLayer) {
- setupAnnotations(div, this.pdfPage, this.viewport);
- }
- };
- Object.defineProperty(this, 'width', {
- get: function PageView_getWidth() {
- return this.viewport.width;
- },
- enumerable: true
- });
- Object.defineProperty(this, 'height', {
- get: function PageView_getHeight() {
- return this.viewport.height;
- },
- enumerable: true
- });
- var self = this;
- function setupAnnotations(pageDiv, pdfPage, viewport) {
- function bindLink(link, dest) {
- link.href = PDFView.getDestinationHash(dest);
- link.onclick = function pageViewSetupLinksOnclick() {
- if (dest) {
- PDFView.navigateTo(dest);
- }
- return false;
- };
- if (dest) {
- link.className = 'internalLink';
- }
- }
- function bindNamedAction(link, action) {
- link.href = PDFView.getAnchorUrl('');
- link.onclick = function pageViewSetupNamedActionOnClick() {
- // See PDF reference, table 8.45 - Named action
- switch (action) {
- case 'GoToPage':
- document.getElementById('pageNumber').focus();
- break;
- case 'GoBack':
- PDFHistory.back();
- break;
- case 'GoForward':
- PDFHistory.forward();
- break;
- case 'Find':
- if (!PDFView.supportsIntegratedFind) {
- PDFFindBar.toggle();
- }
- break;
- case 'NextPage':
- PDFView.page++;
- break;
- case 'PrevPage':
- PDFView.page--;
- break;
- case 'LastPage':
- PDFView.page = PDFView.pages.length;
- break;
- case 'FirstPage':
- PDFView.page = 1;
- break;
- default:
- break; // No action according to spec
- }
- return false;
- };
- link.className = 'internalLink';
- }
- pdfPage.getAnnotations().then(function(annotationsData) {
- if (self.annotationLayer) {
- // If an annotationLayer already exists, delete it to avoid creating
- // duplicate annotations when rapidly re-zooming the document.
- pageDiv.removeChild(self.annotationLayer);
- self.annotationLayer = null;
- }
- viewport = viewport.clone({ dontFlip: true });
- for (var i = 0; i < annotationsData.length; i++) {
- var data = annotationsData[i];
- var annotation = PDFJS.Annotation.fromData(data);
- if (!annotation || !annotation.hasHtml()) {
- continue;
- }
- var element = annotation.getHtmlElement(pdfPage.commonObjs);
- mozL10n.translate(element);
- data = annotation.getData();
- var rect = data.rect;
- var view = pdfPage.view;
- rect = PDFJS.Util.normalizeRect([
- rect[0],
- view[3] - rect[1] + view[1],
- rect[2],
- view[3] - rect[3] + view[1]
- ]);
- element.style.left = rect[0] + 'px';
- element.style.top = rect[1] + 'px';
- element.style.position = 'absolute';
- var transform = viewport.transform;
- var transformStr = 'matrix(' + transform.join(',') + ')';
- CustomStyle.setProp('transform', element, transformStr);
- var transformOriginStr = -rect[0] + 'px ' + -rect[1] + 'px';
- CustomStyle.setProp('transformOrigin', element, transformOriginStr);
- if (data.subtype === 'Link' && !data.url) {
- if (data.action) {
- bindNamedAction(element, data.action);
- } else {
- bindLink(element, ('dest' in data) ? data.dest : null);
- }
- }
- if (!self.annotationLayer) {
- var annotationLayerDiv = document.createElement('div');
- annotationLayerDiv.className = 'annotationLayer';
- pageDiv.appendChild(annotationLayerDiv);
- self.annotationLayer = annotationLayerDiv;
- }
- self.annotationLayer.appendChild(element);
- }
- });
- }
- this.getPagePoint = function pageViewGetPagePoint(x, y) {
- return this.viewport.convertToPdfPoint(x, y);
- };
- this.scrollIntoView = function pageViewScrollIntoView(dest) {
- if (PresentationMode.active) {
- if (PDFView.page !== this.id) {
- // Avoid breaking PDFView.getVisiblePages in presentation mode.
- PDFView.page = this.id;
- return;
- }
- dest = null;
- PDFView.setScale(PDFView.currentScaleValue, true, true);
- }
- if (!dest) {
- scrollIntoView(div);
- return;
- }
- var x = 0, y = 0;
- var width = 0, height = 0, widthScale, heightScale;
- var changeOrientation = !!(this.rotation % 180);
- var pageWidth = (changeOrientation ? this.height : this.width) /
- this.scale / CSS_UNITS;
- var pageHeight = (changeOrientation ? this.width : this.height) /
- this.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';
- 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;
- widthScale = (PDFView.container.clientWidth - SCROLLBAR_PADDING) /
- width / CSS_UNITS;
- heightScale = (PDFView.container.clientHeight - SCROLLBAR_PADDING) /
- height / CSS_UNITS;
- scale = Math.min(Math.abs(widthScale), Math.abs(heightScale));
- break;
- default:
- return;
- }
- if (scale && scale !== PDFView.currentScale) {
- PDFView.setScale(scale, true, true);
- } else if (PDFView.currentScale === UNKNOWN_SCALE) {
- PDFView.setScale(DEFAULT_SCALE, true, true);
- }
- if (scale === 'page-fit' && !dest[4]) {
- scrollIntoView(div);
- return;
- }
- var boundingRect = [
- this.viewport.convertToViewportPoint(x, y),
- this.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(div, { left: left, top: top });
- };
- this.getTextContent = function pageviewGetTextContent() {
- return PDFView.getPage(this.id).then(function(pdfPage) {
- return pdfPage.getTextContent();
- });
- };
- this.draw = function pageviewDraw(callback) {
- var pdfPage = this.pdfPage;
- if (this.pagePdfPromise) {
- return;
- }
- if (!pdfPage) {
- var promise = PDFView.getPage(this.id);
- promise.then(function(pdfPage) {
- delete this.pagePdfPromise;
- this.setPdfPage(pdfPage);
- this.draw(callback);
- }.bind(this));
- this.pagePdfPromise = promise;
- return;
- }
- if (this.renderingState !== RenderingStates.INITIAL) {
- console.error('Must be in new state before drawing');
- }
- this.renderingState = RenderingStates.RUNNING;
- var viewport = this.viewport;
- // 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;
- canvasWrapper.appendChild(canvas);
- div.appendChild(canvasWrapper);
- this.canvas = canvas;
- var scale = this.scale;
- var ctx = canvas.getContext('2d');
- var outputScale = getOutputScale(ctx);
- if (USE_ONLY_CSS_ZOOM) {
- 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;
- }
- canvas.width = (Math.floor(viewport.width) * outputScale.sx) | 0;
- canvas.height = (Math.floor(viewport.height) * outputScale.sy) | 0;
- canvas.style.width = Math.floor(viewport.width) + 'px';
- canvas.style.height = Math.floor(viewport.height) + 'px';
- // Add the viewport so it's known what it was originally drawn with.
- canvas._viewport = viewport;
- var textLayerDiv = null;
- if (!PDFJS.disableTextLayer) {
- textLayerDiv = document.createElement('div');
- textLayerDiv.className = 'textLayer';
- textLayerDiv.style.width = canvas.width + 'px';
- textLayerDiv.style.height = canvas.height + 'px';
- div.appendChild(textLayerDiv);
- }
- var textLayer = this.textLayer =
- textLayerDiv ? new TextLayerBuilder({
- textLayerDiv: textLayerDiv,
- pageIndex: this.id - 1,
- lastScrollSource: PDFView,
- viewport: this.viewport,
- isViewerInPresentationMode: PresentationMode.active
- }) : null;
- // TODO(mack): use data attributes to store these
- ctx._scaleX = outputScale.sx;
- ctx._scaleY = outputScale.sy;
- if (outputScale.scaled) {
- ctx.scale(outputScale.sx, outputScale.sy);
- }
- if (outputScale.scaled && textLayerDiv) {
- var cssScale = 'scale(' + (1 / outputScale.sx) + ', ' +
- (1 / outputScale.sy) + ')';
- CustomStyle.setProp('transform' , textLayerDiv, cssScale);
- CustomStyle.setProp('transformOrigin' , textLayerDiv, '0% 0%');
- textLayerDiv.dataset._scaleX = outputScale.sx;
- textLayerDiv.dataset._scaleY = outputScale.sy;
- }
- // 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') {
- return;
- }
- self.renderingState = RenderingStates.FINISHED;
- if (self.loadingIconDiv) {
- div.removeChild(self.loadingIconDiv);
- delete self.loadingIconDiv;
- }
- if (self.zoomLayer) {
- div.removeChild(self.zoomLayer);
- self.zoomLayer = null;
- }
- if (error) {
- PDFView.error(mozL10n.get('rendering_error', null,
- 'An error occurred while rendering the page.'), error);
- }
- self.stats = pdfPage.stats;
- self.updateStats();
- if (self.onAfterDraw) {
- self.onAfterDraw();
- }
- cache.push(self);
- var event = document.createEvent('CustomEvent');
- event.initCustomEvent('pagerender', true, true, {
- pageNumber: pdfPage.pageNumber
- });
- div.dispatchEvent(event);
- callback();
- }
- var renderContext = {
- canvasContext: ctx,
- viewport: this.viewport,
- textLayer: textLayer,
- continueCallback: function pdfViewcContinueCallback(cont) {
- if (PDFView.highestPriorityPage !== 'page' + self.id) {
- self.renderingState = RenderingStates.PAUSED;
- self.resume = function resumeCallback() {
- self.renderingState = RenderingStates.RUNNING;
- cont();
- };
- return;
- }
- cont();
- }
- };
- var renderTask = this.renderTask = this.pdfPage.render(renderContext);
- this.renderTask.promise.then(
- function pdfPageRenderCallback() {
- pageViewDrawCallback(null);
- },
- function pdfPageRenderError(error) {
- pageViewDrawCallback(error);
- }
- );
- if (textLayer) {
- this.getTextContent().then(
- function textContentResolved(textContent) {
- textLayer.setTextContent(textContent);
- }
- );
- }
- setupAnnotations(div, pdfPage, this.viewport);
- div.setAttribute('data-loaded', true);
- };
- this.beforePrint = function pageViewBeforePrint() {
- 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');
- canvas.width = Math.floor(viewport.width) * PRINT_OUTPUT_SCALE;
- canvas.height = Math.floor(viewport.height) * PRINT_OUTPUT_SCALE;
- canvas.style.width = (PRINT_OUTPUT_SCALE * viewport.width) + 'pt';
- canvas.style.height = (PRINT_OUTPUT_SCALE * viewport.height) + 'pt';
- var cssScale = 'scale(' + (1 / PRINT_OUTPUT_SCALE) + ', ' +
- (1 / PRINT_OUTPUT_SCALE) + ')';
- CustomStyle.setProp('transform' , canvas, cssScale);
- CustomStyle.setProp('transformOrigin' , canvas, '0% 0%');
- var printContainer = document.getElementById('printContainer');
- var canvasWrapper = document.createElement('div');
- canvasWrapper.style.width = viewport.width + 'pt';
- canvasWrapper.style.height = viewport.height + 'pt';
- canvasWrapper.appendChild(canvas);
- printContainer.appendChild(canvasWrapper);
- var self = this;
- 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();
- ctx.scale(PRINT_OUTPUT_SCALE, PRINT_OUTPUT_SCALE);
- var renderContext = {
- canvasContext: ctx,
- viewport: viewport
- };
- pdfPage.render(renderContext).promise.then(function() {
- // Tell the printEngine that rendering this canvas/page has finished.
- obj.done();
- self.pdfPage.destroy();
- }, 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();
- }
- self.pdfPage.destroy();
- });
- };
- };
- this.updateStats = function pageViewUpdateStats() {
- if (!this.stats) {
- return;
- }
- if (PDFJS.pdfBug && Stats.enabled) {
- var stats = this.stats;
- Stats.add(this.id, stats);
- }
- };
- };
- var ThumbnailView = function thumbnailView(container, id, defaultViewport) {
- var anchor = document.createElement('a');
- anchor.href = PDFView.getAnchorUrl('#page=' + id);
- anchor.title = mozL10n.get('thumb_page_title', {page: id}, 'Page {{page}}');
- anchor.onclick = function stopNavigation() {
- PDFView.page = id;
- return false;
- };
- this.pdfPage = undefined;
- this.viewport = defaultViewport;
- this.pdfPageRotate = defaultViewport.rotation;
- this.rotation = 0;
- this.pageWidth = this.viewport.width;
- this.pageHeight = this.viewport.height;
- this.pageRatio = this.pageWidth / this.pageHeight;
- this.id = id;
- this.canvasWidth = 98;
- this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
- this.scale = (this.canvasWidth / this.pageWidth);
- var div = this.el = document.createElement('div');
- div.id = 'thumbnailContainer' + id;
- div.className = 'thumbnail';
- 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';
- ring.style.width = this.canvasWidth + 'px';
- ring.style.height = this.canvasHeight + 'px';
- div.appendChild(ring);
- anchor.appendChild(div);
- container.appendChild(anchor);
- this.hasImage = false;
- this.renderingState = RenderingStates.INITIAL;
- this.setPdfPage = function thumbnailViewSetPdfPage(pdfPage) {
- this.pdfPage = pdfPage;
- this.pdfPageRotate = pdfPage.rotate;
- var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
- this.viewport = pdfPage.getViewport(1, totalRotation);
- this.update();
- };
- this.update = function thumbnailViewUpdate(rotation) {
- if (rotation !== undefined) {
- this.rotation = rotation;
- }
- var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
- this.viewport = this.viewport.clone({
- scale: 1,
- rotation: totalRotation
- });
- this.pageWidth = this.viewport.width;
- this.pageHeight = this.viewport.height;
- this.pageRatio = this.pageWidth / this.pageHeight;
- this.canvasHeight = this.canvasWidth / this.pageWidth * this.pageHeight;
- this.scale = (this.canvasWidth / this.pageWidth);
- div.removeAttribute('data-loaded');
- ring.textContent = '';
- ring.style.width = this.canvasWidth + 'px';
- ring.style.height = this.canvasHeight + 'px';
- this.hasImage = false;
- this.renderingState = RenderingStates.INITIAL;
- this.resume = null;
- };
- this.getPageDrawContext = function thumbnailViewGetPageDrawContext() {
- var canvas = document.createElement('canvas');
- canvas.id = 'thumbnail' + id;
- canvas.width = this.canvasWidth;
- canvas.height = this.canvasHeight;
- canvas.className = 'thumbnailImage';
- canvas.setAttribute('aria-label', mozL10n.get('thumb_page_canvas',
- {page: id}, 'Thumbnail of Page {{page}}'));
- div.setAttribute('data-loaded', true);
- ring.appendChild(canvas);
- var ctx = canvas.getContext('2d');
- ctx.save();
- ctx.fillStyle = 'rgb(255, 255, 255)';
- ctx.fillRect(0, 0, this.canvasWidth, this.canvasHeight);
- ctx.restore();
- return ctx;
- };
- this.drawingRequired = function thumbnailViewDrawingRequired() {
- return !this.hasImage;
- };
- this.draw = function thumbnailViewDraw(callback) {
- if (!this.pdfPage) {
- var promise = PDFView.getPage(this.id);
- promise.then(function(pdfPage) {
- this.setPdfPage(pdfPage);
- this.draw(callback);
- }.bind(this));
- return;
- }
- if (this.renderingState !== RenderingStates.INITIAL) {
- console.error('Must be in new state before drawing');
- }
- this.renderingState = RenderingStates.RUNNING;
- if (this.hasImage) {
- callback();
- return;
- }
- var self = this;
- var ctx = this.getPageDrawContext();
- var drawViewport = this.viewport.clone({ scale: this.scale });
- var renderContext = {
- canvasContext: ctx,
- viewport: drawViewport,
- continueCallback: function(cont) {
- if (PDFView.highestPriorityPage !== 'thumbnail' + self.id) {
- self.renderingState = RenderingStates.PAUSED;
- self.resume = function() {
- self.renderingState = RenderingStates.RUNNING;
- cont();
- };
- return;
- }
- cont();
- }
- };
- this.pdfPage.render(renderContext).promise.then(
- function pdfPageRenderCallback() {
- self.renderingState = RenderingStates.FINISHED;
- callback();
- },
- function pdfPageRenderError(error) {
- self.renderingState = RenderingStates.FINISHED;
- callback();
- }
- );
- this.hasImage = true;
- };
- this.setImage = function thumbnailViewSetImage(img) {
- if (!this.pdfPage) {
- var promise = PDFView.getPage(this.id);
- promise.then(function(pdfPage) {
- this.setPdfPage(pdfPage);
- this.setImage(img);
- }.bind(this));
- return;
- }
- if (this.hasImage || !img) {
- return;
- }
- this.renderingState = RenderingStates.FINISHED;
- var ctx = this.getPageDrawContext();
- ctx.drawImage(img, 0, 0, img.width, img.height,
- 0, 0, ctx.canvas.width, ctx.canvas.height);
- this.hasImage = true;
- };
- };
- var FIND_SCROLL_OFFSET_TOP = -50;
- var FIND_SCROLL_OFFSET_LEFT = -400;
- /**
- * TextLayerBuilder provides text-selection
- * functionality for the PDF. It does this
- * by creating overlay divs over the PDF
- * text. This divs contain text that matches
- * the PDF text they are overlaying. This
- * object also provides for a way to highlight
- * text that is being searched for.
- */
- var TextLayerBuilder = function textLayerBuilder(options) {
- var textLayerFrag = document.createDocumentFragment();
- this.textLayerDiv = options.textLayerDiv;
- this.layoutDone = false;
- this.divContentDone = false;
- this.pageIdx = options.pageIndex;
- this.matches = [];
- this.lastScrollSource = options.lastScrollSource;
- this.viewport = options.viewport;
- this.isViewerInPresentationMode = options.isViewerInPresentationMode;
- if(typeof PDFFindController === 'undefined') {
- window.PDFFindController = null;
- }
- if(typeof this.lastScrollSource === 'undefined') {
- this.lastScrollSource = null;
- }
- this.beginLayout = function textLayerBuilderBeginLayout() {
- this.textDivs = [];
- this.renderingDone = false;
- };
- this.endLayout = function textLayerBuilderEndLayout() {
- this.layoutDone = true;
- this.insertDivContent();
- };
- this.renderLayer = function textLayerBuilderRenderLayer() {
- var textDivs = this.textDivs;
- var canvas = document.createElement('canvas');
- var ctx = canvas.getContext('2d');
- // No point in rendering so many divs as it'd make the browser unusable
- // even after the divs are rendered
- var MAX_TEXT_DIVS_TO_RENDER = 100000;
- if (textDivs.length > MAX_TEXT_DIVS_TO_RENDER)
- return;
- for (var i = 0, ii = textDivs.length; i < ii; i++) {
- var textDiv = textDivs[i];
- if ('isWhitespace' in textDiv.dataset) {
- continue;
- }
- ctx.font = textDiv.style.fontSize + ' ' + textDiv.style.fontFamily;
- var width = ctx.measureText(textDiv.textContent).width;
- if (width > 0) {
- textLayerFrag.appendChild(textDiv);
- var textScale = textDiv.dataset.canvasWidth / width;
- var rotation = textDiv.dataset.angle;
- var transform = 'scale(' + textScale + ', 1)';
- transform = 'rotate(' + rotation + 'deg) ' + transform;
- CustomStyle.setProp('transform' , textDiv, transform);
- CustomStyle.setProp('transformOrigin' , textDiv, '0% 0%');
- }
- }
- this.textLayerDiv.appendChild(textLayerFrag);
- this.renderingDone = true;
- this.updateMatches();
- };
- this.setupRenderLayoutTimer = function textLayerSetupRenderLayoutTimer() {
- // Schedule renderLayout() if user has been scrolling, otherwise
- // run it right away
- var RENDER_DELAY = 200; // in ms
- var self = this;
- var lastScroll = this.lastScrollSource === null ?
- 0 : this.lastScrollSource.lastScroll;
- if (Date.now() - lastScroll > RENDER_DELAY) {
- // Render right away
- this.renderLayer();
- } else {
- // Schedule
- if (this.renderTimer)
- clearTimeout(this.renderTimer);
- this.renderTimer = setTimeout(function() {
- self.setupRenderLayoutTimer();
- }, RENDER_DELAY);
- }
- };
- this.appendText = function textLayerBuilderAppendText(geom) {
- var textDiv = document.createElement('div');
- // vScale and hScale already contain the scaling to pixel units
- var fontHeight = geom.fontSize * Math.abs(geom.vScale);
- textDiv.dataset.canvasWidth = geom.canvasWidth * Math.abs(geom.hScale);
- textDiv.dataset.fontName = geom.fontName;
- textDiv.dataset.angle = geom.angle * (180 / Math.PI);
- textDiv.style.fontSize = fontHeight + 'px';
- textDiv.style.fontFamily = geom.fontFamily;
- var fontAscent = geom.ascent ? geom.ascent * fontHeight :
- geom.descent ? (1 + geom.descent) * fontHeight : fontHeight;
- textDiv.style.left = (geom.x + (fontAscent * Math.sin(geom.angle))) + 'px';
- textDiv.style.top = (geom.y - (fontAscent * Math.cos(geom.angle))) + 'px';
- // The content of the div is set in the `setTextContent` function.
- this.textDivs.push(textDiv);
- };
- this.insertDivContent = function textLayerUpdateTextContent() {
- // Only set the content of the divs once layout has finished, the content
- // for the divs is available and content is not yet set on the divs.
- if (!this.layoutDone || this.divContentDone || !this.textContent)
- return;
- this.divContentDone = true;
- var textDivs = this.textDivs;
- var bidiTexts = this.textContent;
- for (var i = 0; i < bidiTexts.length; i++) {
- var bidiText = bidiTexts[i];
- var textDiv = textDivs[i];
- if (!/\S/.test(bidiText.str)) {
- textDiv.dataset.isWhitespace = true;
- continue;
- }
- textDiv.textContent = bidiText.str;
- // TODO refactor text layer to use text content position
- /**
- * var arr = this.viewport.convertToViewportPoint(bidiText.x, bidiText.y);
- * textDiv.style.left = arr[0] + 'px';
- * textDiv.style.top = arr[1] + 'px';
- */
- // bidiText.dir may be 'ttb' for vertical texts.
- textDiv.dir = bidiText.dir;
- }
- this.setupRenderLayoutTimer();
- };
- this.setTextContent = function textLayerBuilderSetTextContent(textContent) {
- this.textContent = textContent;
- this.insertDivContent();
- };
- this.convertMatches = function textLayerBuilderConvertMatches(matches) {
- var i = 0;
- var iIndex = 0;
- var bidiTexts = this.textContent;
- var end = bidiTexts.length - 1;
- var queryLen = PDFFindController === null ?
- 0 : PDFFindController.state.query.length;
- var lastDivIdx = -1;
- var pos;
- var ret = [];
- // Loop over all the matches.
- for (var m = 0; m < matches.length; m++) {
- var matchIdx = matches[m];
- // # Calculate the begin position.
- // Loop over the divIdxs.
- while (i !== end && matchIdx >= (iIndex + bidiTexts[i].str.length)) {
- iIndex += bidiTexts[i].str.length;
- i++;
- }
- // TODO: Do proper handling here if something goes wrong.
- if (i == bidiTexts.length) {
- console.error('Could not find matching mapping');
- }
- var match = {
- begin: {
- divIdx: i,
- offset: matchIdx - iIndex
- }
- };
- // # Calculate the end position.
- matchIdx += queryLen;
- // Somewhat same array as above, but use a > 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;
- };
- this.renderMatches = function textLayerBuilder_renderMatches(matches) {
- // Early exit if there is nothing to render.
- if (matches.length === 0) {
- return;
- }
- var bidiTexts = this.textContent;
- var textDivs = this.textDivs;
- var prevEnd = null;
- var isSelectedPage = PDFFindController === null ?
- false : (this.pageIdx === PDFFindController.selected.pageIdx);
- var selectedMatchIdx = PDFFindController === null ?
- -1 : PDFFindController.selected.matchIdx;
- var highlightAll = PDFFindController === null ?
- false : PDFFindController.state.highlightAll;
- var infty = {
- divIdx: -1,
- offset: undefined
- };
- function beginText(begin, className) {
- var divIdx = begin.divIdx;
- var div = textDivs[divIdx];
- div.textContent = '';
- var content = bidiTexts[divIdx].str.substring(0, begin.offset);
- var node = document.createTextNode(content);
- if (className) {
- var isSelected = isSelectedPage &&
- divIdx === selectedMatchIdx;
- var span = document.createElement('span');
- span.className = className + (isSelected ? ' selected' : '');
- span.appendChild(node);
- div.appendChild(span);
- return;
- }
- div.appendChild(node);
- }
- function appendText(from, to, className) {
- var divIdx = from.divIdx;
- var div = textDivs[divIdx];
- var content = bidiTexts[divIdx].str.substring(from.offset, to.offset);
- 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);
- }
- function highlightDiv(divIdx, className) {
- textDivs[divIdx].className = className;
- }
- var i0 = selectedMatchIdx, i1 = i0 + 1, i;
- 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 (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 (isSelected && !this.isViewerInPresentationMode) {
- scrollIntoView(textDivs[begin.divIdx], { top: FIND_SCROLL_OFFSET_TOP,
- left: FIND_SCROLL_OFFSET_LEFT });
- }
- // 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) {
- appendText(prevEnd, infty);
- }
- // clears the divs and set the content until the begin point.
- beginText(begin);
- } else {
- appendText(prevEnd, begin);
- }
- if (begin.divIdx === end.divIdx) {
- appendText(begin, end, 'highlight' + highlightSuffix);
- } else {
- appendText(begin, infty, 'highlight begin' + highlightSuffix);
- for (var n = begin.divIdx + 1; n < end.divIdx; n++) {
- highlightDiv(n, 'highlight middle' + highlightSuffix);
- }
- beginText(end, 'highlight end' + highlightSuffix);
- }
- prevEnd = end;
- }
- if (prevEnd) {
- appendText(prevEnd, infty);
- }
- };
- this.updateMatches = function textLayerUpdateMatches() {
- // Only show matches, once all rendering is done.
- if (!this.renderingDone)
- return;
- // Clear out all matches.
- var matches = this.matches;
- var textDivs = this.textDivs;
- var bidiTexts = this.textContent;
- var clearedUntilDivIdx = -1;
- // Clear out all current matches.
- for (var i = 0; i < matches.length; i++) {
- var match = matches[i];
- var begin = Math.max(clearedUntilDivIdx, match.begin.divIdx);
- for (var n = begin; n <= match.end.divIdx; n++) {
- var div = textDivs[n];
- div.textContent = bidiTexts[n].str;
- div.className = '';
- }
- clearedUntilDivIdx = match.end.divIdx + 1;
- }
- if (PDFFindController === null || !PDFFindController.active)
- return;
- // Convert the matches on the page controller into the match format used
- // for the textLayer.
- this.matches = matches =
- this.convertMatches(PDFFindController === null ?
- [] : (PDFFindController.pageMatches[this.pageIdx] || []));
- this.renderMatches(this.matches);
- };
- };
- var DocumentOutlineView = function documentOutlineView(outline) {
- var outlineView = document.getElementById('outlineView');
- var outlineButton = document.getElementById('viewOutline');
- while (outlineView.firstChild)
- outlineView.removeChild(outlineView.firstChild);
- if (!outline) {
- if (!outlineView.classList.contains('hidden'))
- PDFView.switchSidebarView('thumbs');
- return;
- }
- function bindItemLink(domObj, item) {
- domObj.href = PDFView.getDestinationHash(item.dest);
- domObj.onclick = function documentOutlineViewOnclick(e) {
- PDFView.navigateTo(item.dest);
- return false;
- };
- }
- var queue = [{parent: outlineView, items: outline}];
- while (queue.length > 0) {
- var levelData = queue.shift();
- var i, n = levelData.items.length;
- for (i = 0; i < n; i++) {
- var item = levelData.items[i];
- var div = document.createElement('div');
- div.className = 'outlineItem';
- var a = document.createElement('a');
- bindItemLink(a, item);
- a.textContent = item.title;
- div.appendChild(a);
- if (item.items.length > 0) {
- var itemsDiv = document.createElement('div');
- itemsDiv.className = 'outlineItems';
- div.appendChild(itemsDiv);
- queue.push({parent: itemsDiv, items: item.items});
- }
- levelData.parent.appendChild(div);
- }
- }
- };
- function webViewerLoad(evt) {
- PDFView.initialize();
- var params = PDFView.parseQueryString(document.location.search.substring(1));
- var file = 'file' in params ? params.file : DEFAULT_URL;
- var fileInput = document.createElement('input');
- fileInput.id = 'fileInput';
- fileInput.className = 'fileInput';
- fileInput.setAttribute('type', 'file');
- fileInput.oncontextmenu = noContextMenuHandler;
- document.body.appendChild(fileInput);
- if (!window.File || !window.FileReader || !window.FileList || !window.Blob) {
- document.getElementById('openFile').setAttribute('hidden', 'true');
- document.getElementById('secondaryOpenFile').setAttribute('hidden', 'true');
- } else {
- document.getElementById('fileInput').value = null;
- }
- // Special debugging flags in the hash section of the URL.
- var hash = document.location.hash.substring(1);
- var hashParams = PDFView.parseQueryString(hash);
- if ('disableWorker' in hashParams) {
- PDFJS.disableWorker = (hashParams['disableWorker'] === 'true');
- }
- if ('disableRange' in hashParams) {
- PDFJS.disableRange = (hashParams['disableRange'] === '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 ('useOnlyCssZoom' in hashParams) {
- USE_ONLY_CSS_ZOOM = (hashParams['useOnlyCssZoom'] === 'true');
- }
- if ('verbosity' in hashParams) {
- PDFJS.verbosity = hashParams['verbosity'] | 0;
- }
- if ('ignoreCurrentPositionOnZoom' in hashParams) {
- IGNORE_CURRENT_POSITION_ON_ZOOM =
- (hashParams['ignoreCurrentPositionOnZoom'] === 'true');
- }
- var locale = PDFJS.locale || navigator.language;
- if ('locale' in hashParams)
- locale = hashParams['locale'];
- mozL10n.setLanguage(locale);
- if ('textLayer' in hashParams) {
- switch (hashParams['textLayer']) {
- case 'off':
- PDFJS.disableTextLayer = true;
- break;
- case 'visible':
- case 'shadow':
- case 'hover':
- var viewer = document.getElementById('viewer');
- 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();
- }
- if (!PDFView.supportsPrinting) {
- document.getElementById('print').classList.add('hidden');
- document.getElementById('secondaryPrint').classList.add('hidden');
- }
- if (!PDFView.supportsFullscreen) {
- document.getElementById('presentationMode').classList.add('hidden');
- document.getElementById('secondaryPresentationMode').
- classList.add('hidden');
- }
- if (PDFView.supportsIntegratedFind) {
- document.getElementById('viewFind').classList.add('hidden');
- }
- // Listen for unsuporrted features to trigger the fallback UI.
- PDFJS.UnsupportedManager.listen(PDFView.fallback.bind(PDFView));
- // Suppress context menus for some controls
- document.getElementById('scaleSelect').oncontextmenu = noContextMenuHandler;
- var mainContainer = document.getElementById('mainContainer');
- var outerContainer = document.getElementById('outerContainer');
- mainContainer.addEventListener('transitionend', function(e) {
- if (e.target == mainContainer) {
- var event = document.createEvent('UIEvents');
- event.initUIEvent('resize', false, false, window, 0);
- window.dispatchEvent(event);
- outerContainer.classList.remove('sidebarMoving');
- }
- }, true);
- document.getElementById('sidebarToggle').addEventListener('click',
- function() {
- this.classList.toggle('toggled');
- outerContainer.classList.add('sidebarMoving');
- outerContainer.classList.toggle('sidebarOpen');
- PDFView.sidebarOpen = outerContainer.classList.contains('sidebarOpen');
- PDFView.renderHighestPriority();
- });
- document.getElementById('viewThumbnail').addEventListener('click',
- function() {
- PDFView.switchSidebarView('thumbs');
- });
- document.getElementById('viewOutline').addEventListener('click',
- function() {
- PDFView.switchSidebarView('outline');
- });
- document.getElementById('previous').addEventListener('click',
- function() {
- PDFView.page--;
- });
- document.getElementById('next').addEventListener('click',
- function() {
- PDFView.page++;
- });
- document.getElementById('zoomIn').addEventListener('click',
- function() {
- PDFView.zoomIn();
- });
- document.getElementById('zoomOut').addEventListener('click',
- function() {
- PDFView.zoomOut();
- });
- document.getElementById('pageNumber').addEventListener('click',
- function() {
- this.select();
- });
- document.getElementById('pageNumber').addEventListener('change',
- function() {
- // Handle the user inputting a floating point number.
- PDFView.page = (this.value | 0);
- if (this.value !== (this.value | 0).toString()) {
- this.value = PDFView.page;
- }
- });
- document.getElementById('scaleSelect').addEventListener('change',
- function() {
- PDFView.setScale(this.value);
- });
- document.getElementById('presentationMode').addEventListener('click',
- SecondaryToolbar.presentationModeClick.bind(SecondaryToolbar));
- document.getElementById('openFile').addEventListener('click',
- SecondaryToolbar.openFileClick.bind(SecondaryToolbar));
- document.getElementById('print').addEventListener('click',
- SecondaryToolbar.printClick.bind(SecondaryToolbar));
- document.getElementById('download').addEventListener('click',
- SecondaryToolbar.downloadClick.bind(SecondaryToolbar));
- if (file) {
- PDFView.open(file, 0);
- }
- }
- document.addEventListener('DOMContentLoaded', webViewerLoad, true);
- function updateViewarea() {
- if (!PDFView.initialized)
- return;
- var visible = PDFView.getVisiblePages();
- var visiblePages = visible.views;
- if (visiblePages.length === 0) {
- return;
- }
- PDFView.renderHighestPriority();
- var currentId = PDFView.page;
- 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 === PDFView.page) {
- stillFullyVisible = true;
- break;
- }
- }
- if (!stillFullyVisible) {
- currentId = visiblePages[0].id;
- }
- if (!PresentationMode.active) {
- updateViewarea.inProgress = true; // used in "set page"
- PDFView.page = currentId;
- updateViewarea.inProgress = false;
- }
- var currentScale = PDFView.currentScale;
- var currentScaleValue = PDFView.currentScaleValue;
- var normalizedScaleValue = parseFloat(currentScaleValue) === currentScale ?
- Math.round(currentScale * 10000) / 100 : currentScaleValue;
- var pageNumber = firstPage.id;
- var pdfOpenParams = '#page=' + pageNumber;
- pdfOpenParams += '&zoom=' + normalizedScaleValue;
- var currentPage = PDFView.pages[pageNumber - 1];
- var container = PDFView.container;
- var topLeft = currentPage.getPagePoint((container.scrollLeft - firstPage.x),
- (container.scrollTop - firstPage.y));
- var intLeft = Math.round(topLeft[0]);
- var intTop = Math.round(topLeft[1]);
- pdfOpenParams += ',' + intLeft + ',' + intTop;
- if (PresentationMode.active || PresentationMode.switchInProgress) {
- PDFView.currentPosition = null;
- } else {
- PDFView.currentPosition = { page: pageNumber, left: intLeft, top: intTop };
- }
- var store = PDFView.store;
- store.initializedPromise.then(function() {
- store.set('exists', true);
- store.set('page', pageNumber);
- store.set('zoom', normalizedScaleValue);
- store.set('scrollLeft', intLeft);
- store.set('scrollTop', intTop);
- });
- var href = PDFView.getAnchorUrl(pdfOpenParams);
- document.getElementById('viewBookmark').href = href;
- document.getElementById('secondaryViewBookmark').href = href;
- // Update the current bookmark in the browsing history.
- PDFHistory.updateCurrentBookmark(pdfOpenParams, pageNumber);
- }
- window.addEventListener('resize', function webViewerResize(evt) {
- if (PDFView.initialized &&
- (document.getElementById('pageWidthOption').selected ||
- document.getElementById('pageFitOption').selected ||
- document.getElementById('pageAutoOption').selected)) {
- PDFView.setScale(document.getElementById('scaleSelect').value);
- }
- updateViewarea();
- // Set the 'max-height' CSS property of the secondary toolbar.
- SecondaryToolbar.setMaxHeight(PDFView.container);
- });
- window.addEventListener('hashchange', function webViewerHashchange(evt) {
- if (PDFHistory.isHashChangeUnlocked) {
- PDFView.setHash(document.location.hash.substring(1));
- }
- });
- window.addEventListener('change', function webViewerChange(evt) {
- var files = evt.target.files;
- if (!files || files.length === 0)
- return;
- var file = files[0];
- if (!PDFJS.disableCreateObjectURL &&
- typeof URL !== 'undefined' && URL.createObjectURL) {
- PDFView.open(URL.createObjectURL(file), 0);
- } 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);
- PDFView.open(uint8Array, 0);
- };
- fileReader.readAsArrayBuffer(file);
- }
- PDFView.setTitleUsingUrl(file.name);
- // URL does not reflect proper document location - hiding some icons.
- document.getElementById('viewBookmark').setAttribute('hidden', 'true');
- document.getElementById('secondaryViewBookmark').
- setAttribute('hidden', 'true');
- document.getElementById('download').setAttribute('hidden', 'true');
- document.getElementById('secondaryDownload').setAttribute('hidden', 'true');
- }, true);
- function selectScaleOption(value) {
- var options = document.getElementById('scaleSelect').options;
- var predefinedValueFound = false;
- for (var i = 0; i < options.length; 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();
- PDFView.animationStartedPromise.then(function() {
- // Adjust the width of the zoom box to fit the content.
- // Note: This is only done if the zoom box is actually visible,
- // since otherwise element.clientWidth will return 0.
- var container = document.getElementById('scaleSelectContainer');
- if (container.clientWidth > 0) {
- var select = document.getElementById('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(PDFView.container);
- });
- }, true);
- window.addEventListener('scalechange', function scalechange(evt) {
- document.getElementById('zoomOut').disabled = (evt.scale === MIN_SCALE);
- document.getElementById('zoomIn').disabled = (evt.scale === MAX_SCALE);
- var customScaleOption = document.getElementById('customScaleOption');
- customScaleOption.selected = false;
- if (!evt.resetAutoSettings &&
- (document.getElementById('pageWidthOption').selected ||
- document.getElementById('pageFitOption').selected ||
- document.getElementById('pageAutoOption').selected)) {
- updateViewarea();
- return;
- }
- var predefinedValueFound = selectScaleOption('' + evt.scale);
- if (!predefinedValueFound) {
- customScaleOption.textContent = Math.round(evt.scale * 10000) / 100 + '%';
- customScaleOption.selected = true;
- }
- updateViewarea();
- }, true);
- window.addEventListener('pagechange', function pagechange(evt) {
- var page = evt.pageNumber;
- if (PDFView.previousPageNumber !== page) {
- document.getElementById('pageNumber').value = page;
- var selected = document.querySelector('.thumbnail.selected');
- if (selected) {
- selected.classList.remove('selected');
- }
- var thumbnail = document.getElementById('thumbnailContainer' + page);
- thumbnail.classList.add('selected');
- var visibleThumbs = PDFView.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 });
- }
- }
- }
- document.getElementById('previous').disabled = (page <= 1);
- document.getElementById('next').disabled = (page >= PDFView.pages.length);
- }, true);
- 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';
- if (evt.ctrlKey) { // Only zoom the pages, not the entire viewer
- evt.preventDefault();
- PDFView[direction](Math.abs(ticks));
- } else if (PresentationMode.active) {
- PDFView.mouseScroll(ticks * MOUSE_WHEEL_DELTA_FACTOR);
- }
- }
- window.addEventListener('DOMMouseScroll', handleMouseWheel);
- window.addEventListener('mousewheel', handleMouseWheel);
- window.addEventListener('click', function click(evt) {
- if (!PresentationMode.active) {
- if (SecondaryToolbar.opened && PDFView.container.contains(evt.target)) {
- SecondaryToolbar.close();
- }
- } else if (evt.button === 0) {
- // Necessary since preventDefault() in 'mousedown' won't stop
- // the event propagation in all circumstances in presentation mode.
- evt.preventDefault();
- }
- }, false);
- window.addEventListener('keydown', function keydown(evt) {
- if (PasswordPrompt.visible) {
- return;
- }
- var handled = false;
- var cmd = (evt.ctrlKey ? 1 : 0) |
- (evt.altKey ? 2 : 0) |
- (evt.shiftKey ? 4 : 0) |
- (evt.metaKey ? 8 : 0);
- // 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 (!PDFView.supportsIntegratedFind) {
- PDFFindBar.open();
- handled = true;
- }
- break;
- case 71: // g
- if (!PDFView.supportsIntegratedFind) {
- PDFFindBar.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
- PDFView.zoomIn();
- handled = true;
- break;
- case 173: // FF/Mac '-'
- case 109: // FF '-'
- case 189: // Chrome '-'
- PDFView.zoomOut();
- handled = true;
- break;
- case 48: // '0'
- case 96: // '0' on Numpad of Swedish keyboard
- // keeping it unhandled (to restore page zoom to 100%)
- setTimeout(function () {
- // ... and resetting the scale after browser adjusts its scale
- PDFView.setScale(DEFAULT_SCALE, true);
- });
- handled = false;
- break;
- }
- }
- // CTRL or META without shift
- if (cmd === 1 || cmd === 8) {
- switch (evt.keyCode) {
- case 83: // s
- PDFView.download();
- handled = true;
- break;
- }
- }
- // CTRL+ALT or Option+Command
- if (cmd === 3 || cmd === 10) {
- switch (evt.keyCode) {
- case 80: // p
- SecondaryToolbar.presentationModeClick();
- handled = true;
- break;
- case 71: // g
- // focuses input#pageNumber field
- document.getElementById('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;
- }
- }
- if (cmd === 0) { // no control key pressed at all.
- switch (evt.keyCode) {
- case 38: // up arrow
- case 33: // pg up
- case 8: // backspace
- if (!PresentationMode.active &&
- PDFView.currentScaleValue !== 'page-fit') {
- break;
- }
- /* in presentation mode */
- /* falls through */
- case 37: // left arrow
- // horizontal scrolling using arrow keys
- if (PDFView.isHorizontalScrollbarEnabled) {
- break;
- }
- /* falls through */
- case 75: // 'k'
- case 80: // 'p'
- PDFView.page--;
- handled = true;
- break;
- case 27: // esc key
- if (SecondaryToolbar.opened) {
- SecondaryToolbar.close();
- handled = true;
- }
- if (!PDFView.supportsIntegratedFind && PDFFindBar.opened) {
- PDFFindBar.close();
- handled = true;
- }
- break;
- case 40: // down arrow
- case 34: // pg down
- case 32: // spacebar
- if (!PresentationMode.active &&
- PDFView.currentScaleValue !== 'page-fit') {
- break;
- }
- /* falls through */
- case 39: // right arrow
- // horizontal scrolling using arrow keys
- if (PDFView.isHorizontalScrollbarEnabled) {
- break;
- }
- /* falls through */
- case 74: // 'j'
- case 78: // 'n'
- PDFView.page++;
- handled = true;
- break;
- case 36: // home
- if (PresentationMode.active) {
- PDFView.page = 1;
- handled = true;
- }
- break;
- case 35: // end
- if (PresentationMode.active) {
- PDFView.page = PDFView.pdfDocument.numPages;
- handled = true;
- }
- break;
- case 72: // 'h'
- if (!PresentationMode.active) {
- HandTool.toggle();
- }
- break;
- case 82: // 'r'
- PDFView.rotatePages(90);
- break;
- }
- if (!handled && !PresentationMode.active) {
- // 33=Page Up 34=Page Down 35=End 36=Home
- // 37=Left 38=Up 39=Right 40=Down
- if (evt.keyCode >= 33 && evt.keyCode <= 40 &&
- !PDFView.container.contains(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.
- PDFView.container.focus();
- }
- // 32=Spacebar
- if (evt.keyCode === 32 && curElementTagName !== 'BUTTON') {
- if (!PDFView.container.contains(curElement)) {
- PDFView.container.focus();
- }
- }
- }
- }
- if (cmd === 4) { // shift-key
- switch (evt.keyCode) {
- case 32: // spacebar
- if (!PresentationMode.active &&
- PDFView.currentScaleValue !== 'page-fit') {
- break;
- }
- PDFView.page--;
- handled = true;
- break;
- case 82: // 'r'
- PDFView.rotatePages(-90);
- break;
- }
- }
- if (cmd === 2) { // alt-key
- switch (evt.keyCode) {
- case 37: // left arrow
- if (PresentationMode.active) {
- PDFHistory.back();
- handled = true;
- }
- break;
- case 39: // right arrow
- if (PresentationMode.active) {
- PDFHistory.forward();
- handled = true;
- }
- break;
- }
- }
- if (handled) {
- evt.preventDefault();
- PDFView.clearMouseScrollState();
- }
- });
- window.addEventListener('beforeprint', function beforePrint(evt) {
- PDFView.beforePrint();
- });
- window.addEventListener('afterprint', function afterPrint(evt) {
- PDFView.afterPrint();
- });
- (function animationStartedClosure() {
- // The offsetParent is not set until the pdf.js iframe or object is visible.
- // Waiting for first animation.
- var requestAnimationFrame = window.requestAnimationFrame ||
- window.mozRequestAnimationFrame ||
- window.webkitRequestAnimationFrame ||
- window.oRequestAnimationFrame ||
- window.msRequestAnimationFrame ||
- function startAtOnce(callback) { callback(); };
- PDFView.animationStartedPromise = new Promise(function (resolve) {
- requestAnimationFrame(function onAnimationFrame() {
- resolve();
- });
- });
- })();