e2ca1d0e5e
Remove old dead find related code from viewer.js
2829 lines
88 KiB
JavaScript
2829 lines
88 KiB
JavaScript
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
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/* Copyright 2012 Mozilla Foundation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/* globals PDFJS, PDFBug, FirefoxCom, Stats, Cache, PDFFindBar, CustomStyle,
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PDFFindController, ProgressBar, TextLayerBuilder, DownloadManager,
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getFileName, getOutputScale, scrollIntoView, getPDFFileNameFromURL,
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PDFHistory, ThumbnailView, noContextMenuHandler */
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'use strict';
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var DEFAULT_URL = 'compressed.tracemonkey-pldi-09.pdf';
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var DEFAULT_SCALE = 'auto';
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var DEFAULT_SCALE_DELTA = 1.1;
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var UNKNOWN_SCALE = 0;
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var CACHE_SIZE = 20;
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var CSS_UNITS = 96.0 / 72.0;
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var SCROLLBAR_PADDING = 40;
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var VERTICAL_PADDING = 5;
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var MIN_SCALE = 0.25;
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var MAX_SCALE = 4.0;
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var SETTINGS_MEMORY = 20;
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var SCALE_SELECT_CONTAINER_PADDING = 8;
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var SCALE_SELECT_PADDING = 22;
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var RenderingStates = {
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INITIAL: 0,
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RUNNING: 1,
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PAUSED: 2,
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FINISHED: 3
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};
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var FindStates = {
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FIND_FOUND: 0,
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FIND_NOTFOUND: 1,
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FIND_WRAPPED: 2,
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FIND_PENDING: 3
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};
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PDFJS.imageResourcesPath = './images/';
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//#if (FIREFOX || MOZCENTRAL || B2G || GENERIC || CHROME)
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//PDFJS.workerSrc = '../build/pdf.worker.js';
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//#endif
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var mozL10n = document.mozL10n || document.webL10n;
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//#include ui_utils.js
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//#if GENERIC || CHROME
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//#include download_manager.js
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//#endif
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//#if FIREFOX || MOZCENTRAL
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//#include firefoxcom.js
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//#endif
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// Settings Manager - This is a utility for saving settings
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// First we see if localStorage is available
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// If not, we use FUEL in FF
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// Use asyncStorage for B2G
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var Settings = (function SettingsClosure() {
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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var isLocalStorageEnabled = (function localStorageEnabledTest() {
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// Feature test as per http://diveintohtml5.info/storage.html
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// The additional localStorage call is to get around a FF quirk, see
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// bug #495747 in bugzilla
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try {
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return 'localStorage' in window && window['localStorage'] !== null &&
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localStorage;
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} catch (e) {
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return false;
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}
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})();
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//#endif
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function Settings(fingerprint) {
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this.fingerprint = fingerprint;
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this.initializedPromise = new PDFJS.Promise();
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var resolvePromise = (function settingsResolvePromise(db) {
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this.initialize(db || '{}');
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this.initializedPromise.resolve();
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}).bind(this);
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//#if B2G
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// asyncStorage.getItem('database', resolvePromise);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// resolvePromise(FirefoxCom.requestSync('getDatabase', null));
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled)
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resolvePromise(localStorage.getItem('database'));
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//#endif
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}
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Settings.prototype = {
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initialize: function settingsInitialize(database) {
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database = JSON.parse(database);
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if (!('files' in database))
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database.files = [];
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if (database.files.length >= SETTINGS_MEMORY)
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database.files.shift();
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var index;
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for (var i = 0, length = database.files.length; i < length; i++) {
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var branch = database.files[i];
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if (branch.fingerprint == this.fingerprint) {
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index = i;
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break;
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}
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}
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if (typeof index != 'number')
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index = database.files.push({fingerprint: this.fingerprint}) - 1;
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this.file = database.files[index];
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this.database = database;
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},
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set: function settingsSet(name, val) {
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if (!this.initializedPromise.isResolved)
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return;
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var file = this.file;
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file[name] = val;
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var database = JSON.stringify(this.database);
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//#if B2G
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// asyncStorage.setItem('database', database);
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//#endif
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//#if FIREFOX || MOZCENTRAL
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// FirefoxCom.requestSync('setDatabase', database);
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//#endif
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//#if !(FIREFOX || MOZCENTRAL || B2G)
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if (isLocalStorageEnabled)
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localStorage.setItem('database', database);
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//#endif
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},
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get: function settingsGet(name, defaultValue) {
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if (!this.initializedPromise.isResolved)
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return defaultValue;
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return this.file[name] || defaultValue;
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}
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};
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return Settings;
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})();
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var cache = new Cache(CACHE_SIZE);
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var currentPageNumber = 1;
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// TODO: Enable the FindBar *AFTER* the pagesPromise in the load function
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// got resolved
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//#include pdf_find_bar.js
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//#include pdf_find_controller.js
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//#include pdf_history.js
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var PDFView = {
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pages: [],
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thumbnails: [],
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currentScale: UNKNOWN_SCALE,
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currentScaleValue: null,
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initialBookmark: document.location.hash.substring(1),
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container: null,
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thumbnailContainer: null,
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initialized: false,
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fellback: false,
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pdfDocument: null,
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sidebarOpen: false,
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pageViewScroll: null,
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thumbnailViewScroll: null,
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isPresentationMode: false,
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presentationModeArgs: null,
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pageRotation: 0,
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mouseScrollTimeStamp: 0,
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mouseScrollDelta: 0,
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lastScroll: 0,
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previousPageNumber: 1,
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isViewerEmbedded: (window.parent !== window),
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// called once when the document is loaded
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initialize: function pdfViewInitialize() {
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var self = this;
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var container = this.container = document.getElementById('viewerContainer');
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this.pageViewScroll = {};
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this.watchScroll(container, this.pageViewScroll, updateViewarea);
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var thumbnailContainer = this.thumbnailContainer =
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document.getElementById('thumbnailView');
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this.thumbnailViewScroll = {};
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this.watchScroll(thumbnailContainer, this.thumbnailViewScroll,
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this.renderHighestPriority.bind(this));
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PDFFindBar.initialize({
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bar: document.getElementById('findbar'),
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toggleButton: document.getElementById('viewFind'),
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findField: document.getElementById('findInput'),
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highlightAllCheckbox: document.getElementById('findHighlightAll'),
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caseSensitiveCheckbox: document.getElementById('findMatchCase'),
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findMsg: document.getElementById('findMsg'),
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findStatusIcon: document.getElementById('findStatusIcon'),
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findPreviousButton: document.getElementById('findPrevious'),
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findNextButton: document.getElementById('findNext')
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});
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PDFFindController.initialize({
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pdfPageSource: this,
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integratedFind: this.supportsIntegratedFind
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});
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this.initialized = true;
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container.addEventListener('scroll', function() {
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self.lastScroll = Date.now();
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}, false);
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},
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getPage: function pdfViewGetPage(n) {
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return this.pdfDocument.getPage(n);
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},
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// Helper function to keep track whether a div was scrolled up or down and
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// then call a callback.
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watchScroll: function pdfViewWatchScroll(viewAreaElement, state, callback) {
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state.down = true;
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state.lastY = viewAreaElement.scrollTop;
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viewAreaElement.addEventListener('scroll', function webViewerScroll(evt) {
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var currentY = viewAreaElement.scrollTop;
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var lastY = state.lastY;
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if (currentY > lastY)
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state.down = true;
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else if (currentY < lastY)
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state.down = false;
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// else do nothing and use previous value
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state.lastY = currentY;
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callback();
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}, true);
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},
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setScale: function pdfViewSetScale(val, resetAutoSettings, noScroll) {
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if (val == this.currentScale)
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return;
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var pages = this.pages;
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for (var i = 0; i < pages.length; i++)
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pages[i].update(val * CSS_UNITS);
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if (!noScroll && this.currentScale != val)
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this.pages[this.page - 1].scrollIntoView();
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this.currentScale = val;
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var event = document.createEvent('UIEvents');
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event.initUIEvent('scalechange', false, false, window, 0);
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event.scale = val;
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event.resetAutoSettings = resetAutoSettings;
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window.dispatchEvent(event);
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},
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parseScale: function pdfViewParseScale(value, resetAutoSettings, noScroll) {
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if ('custom' == value)
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return;
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var scale = parseFloat(value);
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this.currentScaleValue = value;
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if (scale) {
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this.setScale(scale, true, noScroll);
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return;
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}
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var container = this.container;
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var currentPage = this.pages[this.page - 1];
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if (!currentPage) {
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return;
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}
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var pageWidthScale = (container.clientWidth - SCROLLBAR_PADDING) /
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currentPage.width * currentPage.scale / CSS_UNITS;
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var pageHeightScale = (container.clientHeight - VERTICAL_PADDING) /
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currentPage.height * currentPage.scale / CSS_UNITS;
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switch (value) {
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case 'page-actual':
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scale = 1;
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break;
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case 'page-width':
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scale = pageWidthScale;
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break;
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case 'page-height':
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scale = pageHeightScale;
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break;
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case 'page-fit':
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scale = Math.min(pageWidthScale, pageHeightScale);
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break;
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case 'auto':
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scale = Math.min(1.0, pageWidthScale);
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break;
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}
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this.setScale(scale, resetAutoSettings, noScroll);
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selectScaleOption(value);
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},
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zoomIn: function pdfViewZoomIn() {
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var newScale = (this.currentScale * DEFAULT_SCALE_DELTA).toFixed(2);
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newScale = Math.ceil(newScale * 10) / 10;
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newScale = Math.min(MAX_SCALE, newScale);
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this.parseScale(newScale, true);
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},
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zoomOut: function pdfViewZoomOut() {
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var newScale = (this.currentScale / DEFAULT_SCALE_DELTA).toFixed(2);
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newScale = Math.floor(newScale * 10) / 10;
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newScale = Math.max(MIN_SCALE, newScale);
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this.parseScale(newScale, true);
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},
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set page(val) {
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var pages = this.pages;
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var input = document.getElementById('pageNumber');
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var event = document.createEvent('UIEvents');
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event.initUIEvent('pagechange', false, false, window, 0);
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if (!(0 < val && val <= pages.length)) {
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this.previousPageNumber = val;
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event.pageNumber = this.page;
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window.dispatchEvent(event);
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return;
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}
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pages[val - 1].updateStats();
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this.previousPageNumber = currentPageNumber;
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currentPageNumber = val;
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event.pageNumber = val;
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window.dispatchEvent(event);
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// checking if the this.page was called from the updateViewarea function:
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// avoiding the creation of two "set page" method (internal and public)
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if (updateViewarea.inProgress)
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return;
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// Avoid scrolling the first page during loading
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if (this.loading && val == 1)
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return;
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pages[val - 1].scrollIntoView();
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},
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get page() {
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return currentPageNumber;
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},
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get supportsPrinting() {
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var canvas = document.createElement('canvas');
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var value = 'mozPrintCallback' in canvas;
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// shadow
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Object.defineProperty(this, 'supportsPrinting', { value: value,
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enumerable: true,
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configurable: true,
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writable: false });
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return value;
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},
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get supportsFullscreen() {
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var doc = document.documentElement;
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var support = doc.requestFullscreen || doc.mozRequestFullScreen ||
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doc.webkitRequestFullScreen;
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if (document.fullscreenEnabled === false ||
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document.mozFullScreenEnabled === false ||
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document.webkitFullscreenEnabled === false ) {
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support = false;
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}
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Object.defineProperty(this, 'supportsFullscreen', { value: support,
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enumerable: true,
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configurable: true,
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writable: false });
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return support;
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},
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get supportsIntegratedFind() {
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var support = false;
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//#if !(FIREFOX || MOZCENTRAL)
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//#else
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// support = FirefoxCom.requestSync('supportsIntegratedFind');
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//#endif
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Object.defineProperty(this, 'supportsIntegratedFind', { value: support,
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enumerable: true,
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configurable: true,
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writable: false });
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return support;
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},
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get supportsDocumentFonts() {
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var support = true;
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//#if !(FIREFOX || MOZCENTRAL)
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//#else
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// support = FirefoxCom.requestSync('supportsDocumentFonts');
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//#endif
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Object.defineProperty(this, 'supportsDocumentFonts', { value: support,
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enumerable: true,
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configurable: true,
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writable: false });
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return support;
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},
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get supportsDocumentColors() {
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var support = true;
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//#if !(FIREFOX || MOZCENTRAL)
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//#else
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// support = FirefoxCom.requestSync('supportsDocumentColors');
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//#endif
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Object.defineProperty(this, 'supportsDocumentColors', { value: support,
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enumerable: true,
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configurable: true,
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writable: false });
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return support;
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},
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get loadingBar() {
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var bar = new ProgressBar('#loadingBar', {});
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Object.defineProperty(this, 'loadingBar', { value: bar,
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enumerable: true,
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configurable: true,
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writable: false });
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return bar;
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},
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get isHorizontalScrollbarEnabled() {
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var div = document.getElementById('viewerContainer');
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return div.scrollWidth > div.clientWidth;
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},
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initPassiveLoading: function pdfViewInitPassiveLoading() {
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var pdfDataRangeTransport = {
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rangeListeners: [],
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progressListeners: [],
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addRangeListener: function PdfDataRangeTransport_addRangeListener(
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listener) {
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this.rangeListeners.push(listener);
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},
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addProgressListener: function PdfDataRangeTransport_addProgressListener(
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listener) {
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this.progressListeners.push(listener);
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},
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onDataRange: function PdfDataRangeTransport_onDataRange(begin, chunk) {
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var listeners = this.rangeListeners;
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for (var i = 0, n = listeners.length; i < n; ++i) {
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listeners[i](begin, chunk);
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}
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},
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onDataProgress: function PdfDataRangeTransport_onDataProgress(loaded) {
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var listeners = this.progressListeners;
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for (var i = 0, n = listeners.length; i < n; ++i) {
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listeners[i](loaded);
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}
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},
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requestDataRange: function PdfDataRangeTransport_requestDataRange(
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begin, end) {
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FirefoxCom.request('requestDataRange', { begin: begin, end: end });
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}
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};
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window.addEventListener('message', function windowMessage(e) {
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var args = e.data;
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|
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if (typeof args !== 'object' || !('pdfjsLoadAction' in args))
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return;
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switch (args.pdfjsLoadAction) {
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case 'supportsRangedLoading':
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PDFView.open(args.pdfUrl, 0, undefined, pdfDataRangeTransport, {
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length: args.length
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});
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break;
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case 'range':
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pdfDataRangeTransport.onDataRange(args.begin, args.chunk);
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break;
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case 'rangeProgress':
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pdfDataRangeTransport.onDataProgress(args.loaded);
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break;
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case 'progress':
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PDFView.progress(args.loaded / args.total);
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break;
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case 'complete':
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if (!args.data) {
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PDFView.error(mozL10n.get('loading_error', null,
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'An error occurred while loading the PDF.'), e);
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break;
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}
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PDFView.open(args.data, 0);
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break;
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}
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});
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FirefoxCom.requestSync('initPassiveLoading', null);
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},
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setTitleUsingUrl: function pdfViewSetTitleUsingUrl(url) {
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this.url = url;
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try {
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this.setTitle(decodeURIComponent(getFileName(url)) || url);
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} catch (e) {
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// decodeURIComponent may throw URIError,
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// fall back to using the unprocessed url in that case
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this.setTitle(url);
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}
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},
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setTitle: function pdfViewSetTitle(title) {
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document.title = title;
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//#if B2G
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// document.getElementById('activityTitle').textContent = title;
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|
//#endif
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},
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|
|
|
// TODO(mack): This function signature should really be pdfViewOpen(url, args)
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|
open: function pdfViewOpen(url, scale, password,
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pdfDataRangeTransport, args) {
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var parameters = {password: password};
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if (typeof url === 'string') { // URL
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this.setTitleUsingUrl(url);
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parameters.url = url;
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} else if (url && 'byteLength' in url) { // ArrayBuffer
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parameters.data = url;
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|
}
|
|
if (args) {
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|
for (var prop in args) {
|
|
parameters[prop] = args[prop];
|
|
}
|
|
}
|
|
|
|
this.pdfDocument = null;
|
|
var self = this;
|
|
self.loading = true;
|
|
var passwordNeeded = function passwordNeeded(updatePassword, reason) {
|
|
var promptString = mozL10n.get('request_password', null,
|
|
'PDF is protected by a password:');
|
|
|
|
if (reason === PDFJS.PasswordResponses.INCORRECT_PASSWORD) {
|
|
promptString += '\n' + mozL10n.get('invalid_password', null,
|
|
'Invalid Password.');
|
|
}
|
|
|
|
password = prompt(promptString);
|
|
if (password && password.length > 0) {
|
|
return updatePassword(password);
|
|
}
|
|
};
|
|
|
|
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 B2G
|
|
// window.alert(loadingErrorMessage);
|
|
// return window.close();
|
|
//#endif
|
|
}
|
|
|
|
if (exception && exception.name === 'MissingPDFException') {
|
|
// special message for missing PDF's
|
|
var loadingErrorMessage = mozL10n.get('missing_file_error', null,
|
|
'Missing PDF file.');
|
|
|
|
//#if B2G
|
|
// window.alert(loadingErrorMessage);
|
|
// return window.close();
|
|
//#endif
|
|
}
|
|
|
|
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.buffer, 'application/pdf');
|
|
downloadManager.download(blob, url, filename);
|
|
},
|
|
noData // Error occurred try downloading with just the url.
|
|
).then(null, noData);
|
|
},
|
|
|
|
fallback: function pdfViewFallback() {
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
// return;
|
|
//#else
|
|
// // Only trigger the fallback once so we don't spam the user with messages
|
|
// // for one PDF.
|
|
// if (this.fellback)
|
|
// return;
|
|
// this.fellback = true;
|
|
// var url = this.url.split('#')[0];
|
|
// FirefoxCom.request('fallback', url, function response(download) {
|
|
// if (!download)
|
|
// return;
|
|
// PDFView.download();
|
|
// });
|
|
//#endif
|
|
},
|
|
|
|
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.pendingRefStrLoaded = new PDFJS.Promise();
|
|
self.pendingRefStr = destRef.num + ' ' + destRef.gen + ' R';
|
|
self.pendingRefStrLoaded.then(function() {
|
|
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 '';
|
|
},
|
|
|
|
/**
|
|
* For the firefox extension we prefix the full url on anchor links so they
|
|
* don't come up as resource:// urls and so open in new tab/window works.
|
|
* @param {String} anchor The anchor hash include the #.
|
|
*/
|
|
getAnchorUrl: function getAnchorUrl(anchor) {
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
return anchor;
|
|
//#else
|
|
// return this.url.split('#')[0] + anchor;
|
|
//#endif
|
|
},
|
|
|
|
|
|
/**
|
|
* 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}}');
|
|
}
|
|
}
|
|
}
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
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;
|
|
//#else
|
|
// console.error(message + '\n' + moreInfoText);
|
|
// this.fallback();
|
|
//#endif
|
|
},
|
|
|
|
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) {
|
|
function bindOnAfterDraw(pageView, thumbnailView) {
|
|
// when page is painted, using the image as thumbnail base
|
|
pageView.onAfterDraw = function pdfViewLoadOnAfterDraw() {
|
|
thumbnailView.setImage(pageView.canvas);
|
|
};
|
|
}
|
|
|
|
PDFFindController.reset();
|
|
|
|
this.pdfDocument = pdfDocument;
|
|
|
|
var errorWrapper = document.getElementById('errorWrapper');
|
|
errorWrapper.setAttribute('hidden', 'true');
|
|
|
|
pdfDocument.dataLoaded().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;
|
|
|
|
PDFView.documentFingerprint = id;
|
|
var store = PDFView.store = new Settings(id);
|
|
|
|
this.pageRotation = 0;
|
|
|
|
var pages = this.pages = [];
|
|
var pagesRefMap = this.pagesRefMap = {};
|
|
var thumbnails = this.thumbnails = [];
|
|
|
|
var pagesPromise = this.pagesPromise = new PDFJS.Promise();
|
|
var self = this;
|
|
|
|
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);
|
|
var pagePromises = [];
|
|
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);
|
|
}
|
|
|
|
var event = document.createEvent('CustomEvent');
|
|
event.initCustomEvent('documentload', true, true, {});
|
|
window.dispatchEvent(event);
|
|
|
|
PDFView.loadingBar.setWidth(container);
|
|
|
|
for (var pageNum = 1; pageNum <= pagesCount; ++pageNum) {
|
|
var pagePromise = pdfDocument.getPage(pageNum);
|
|
pagePromise.then(function(pdfPage) {
|
|
var pageNum = pdfPage.pageNumber;
|
|
var pageView = pages[pageNum - 1];
|
|
if (!pageView.pdfPage) {
|
|
// The pdfPage might already be set if we've already entered
|
|
// pageView.draw()
|
|
pageView.setPdfPage(pdfPage);
|
|
}
|
|
var thumbnailView = thumbnails[pageNum - 1];
|
|
if (!thumbnailView.pdfPage) {
|
|
thumbnailView.setPdfPage(pdfPage);
|
|
}
|
|
|
|
var pageRef = pdfPage.ref;
|
|
var refStr = pageRef.num + ' ' + pageRef.gen + ' R';
|
|
pagesRefMap[refStr] = pdfPage.pageNumber;
|
|
|
|
if (self.pendingRefStr && self.pendingRefStr === refStr) {
|
|
self.pendingRefStrLoaded.resolve();
|
|
}
|
|
});
|
|
pagePromises.push(pagePromise);
|
|
}
|
|
|
|
PDFJS.Promise.all(pagePromises).then(function(pages) {
|
|
pagesPromise.resolve(pages);
|
|
});
|
|
});
|
|
|
|
var storePromise = store.initializedPromise;
|
|
PDFJS.Promise.all([firstPagePromise, storePromise]).then(function() {
|
|
var storedHash = null;
|
|
if (store.get('exists', false)) {
|
|
var pageNum = store.get('page', '1');
|
|
var zoom = store.get('zoom', PDFView.currentScale);
|
|
var left = store.get('scrollLeft', '0');
|
|
var top = store.get('scrollTop', '0');
|
|
|
|
storedHash = 'page=' + pageNum + '&zoom=' + zoom + ',' +
|
|
left + ',' + top;
|
|
}
|
|
// 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();
|
|
//#if (FIREFOX || MOZCENTRAL)
|
|
// self.container.blur();
|
|
//#endif
|
|
}
|
|
});
|
|
|
|
pagesPromise.then(function() {
|
|
if (PDFView.supportsPrinting) {
|
|
pdfDocument.getJavaScript().then(function(javaScript) {
|
|
if (javaScript.length) {
|
|
console.warn('Warning: JavaScript is not supported');
|
|
PDFView.fallback();
|
|
}
|
|
// 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];
|
|
PDFJS.Promise.all(promises).then(function() {
|
|
pdfDocument.getOutline().then(function(outline) {
|
|
self.outline = new DocumentOutlineView(outline);
|
|
document.getElementById('viewOutline').disabled = !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();
|
|
}
|
|
|
|
//#if (FIREFOX || MOZCENTRAL)
|
|
// var versionId = String(info.PDFFormatVersion).slice(-1) | 0;
|
|
// var generatorId = 0;
|
|
// var KNOWN_GENERATORS = ["acrobat distiller", "acrobat pdfwritter",
|
|
// "adobe livecycle", "adobe pdf library", "adobe photoshop", "ghostscript",
|
|
// "tcpdf", "cairo", "dvipdfm", "dvips", "pdftex", "pdfkit", "itext",
|
|
// "prince", "quarkxpress", "mac os x", "microsoft", "openoffice", "oracle",
|
|
// "luradocument", "pdf-xchange", "antenna house", "aspose.cells", "fpdf"];
|
|
// var generatorId = 0;
|
|
// if (info.Producer) {
|
|
// KNOWN_GENERATORS.some(function (generator, s, i) {
|
|
// if (generator.indexOf(s) < 0) {
|
|
// return false;
|
|
// }
|
|
// generatorId = i + 1;
|
|
// return true;
|
|
// }.bind(null, info.Producer.toLowerCase()));
|
|
// }
|
|
// var formType = !info.IsAcroFormPresent ? null : info.IsXFAPresent ?
|
|
// 'xfa' : 'acroform';
|
|
// FirefoxCom.request('reportTelemetry', JSON.stringify({
|
|
// type: 'documentInfo',
|
|
// version: versionId,
|
|
// generator: generatorId,
|
|
// formType: formType
|
|
// }));
|
|
//#endif
|
|
});
|
|
},
|
|
|
|
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;
|
|
|
|
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.parseScale(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.parseScale(DEFAULT_SCALE, true);
|
|
}
|
|
},
|
|
|
|
renderHighestPriority: function pdfViewRenderHighestPriority() {
|
|
// 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');
|
|
}
|
|
},
|
|
|
|
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 pdfViewNeedsRendering(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;
|
|
}
|
|
if ('page' in params) {
|
|
var 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;
|
|
|
|
var dest = [null, {name: 'XYZ'},
|
|
zoomArgs.length > 1 ? (zoomArgs[1] | 0) : null,
|
|
zoomArgs.length > 2 ? (zoomArgs[2] | 0) : null,
|
|
zoomArg];
|
|
var currentPage = this.pages[pageNumber - 1];
|
|
currentPage.scrollIntoView(dest);
|
|
} else {
|
|
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 (!this.isPresentationMode) {
|
|
return this.getVisibleElements(this.container, this.pages, true);
|
|
} else {
|
|
// The algorithm in getVisibleElements is broken in presentation mode.
|
|
var visible = [], page = this.page;
|
|
var currentPage = this.pages[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, 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);
|
|
},
|
|
|
|
presentationMode: function pdfViewPresentationMode() {
|
|
var isPresentationMode = document.fullscreenElement ||
|
|
document.mozFullScreen ||
|
|
document.webkitIsFullScreen;
|
|
|
|
if (isPresentationMode) {
|
|
return false;
|
|
}
|
|
|
|
var wrapper = document.getElementById('viewerContainer');
|
|
if (document.documentElement.requestFullscreen) {
|
|
wrapper.requestFullscreen();
|
|
} else if (document.documentElement.mozRequestFullScreen) {
|
|
wrapper.mozRequestFullScreen();
|
|
} else if (document.documentElement.webkitRequestFullScreen) {
|
|
wrapper.webkitRequestFullScreen(Element.ALLOW_KEYBOARD_INPUT);
|
|
} else {
|
|
return false;
|
|
}
|
|
|
|
this.presentationModeArgs = {
|
|
page: this.page,
|
|
previousScale: this.currentScaleValue
|
|
};
|
|
|
|
return true;
|
|
},
|
|
|
|
enterPresentationMode: function pdfViewEnterPresentationMode() {
|
|
this.isPresentationMode = true;
|
|
this.page = this.presentationModeArgs.page;
|
|
this.parseScale('page-fit', true);
|
|
this.showPresentationControls();
|
|
},
|
|
|
|
exitPresentationMode: function pdfViewExitPresentationMode() {
|
|
this.isPresentationMode = false;
|
|
this.parseScale(this.presentationModeArgs.previousScale);
|
|
this.page = this.page;
|
|
this.clearMouseScrollState();
|
|
this.hidePresentationControls();
|
|
this.presentationModeArgs = null;
|
|
|
|
// Ensure that the thumbnail of the current page is visible
|
|
// when exiting presentation mode.
|
|
scrollIntoView(document.getElementById('thumbnailContainer' + this.page));
|
|
},
|
|
|
|
showPresentationControls: function pdfViewShowPresentationControls() {
|
|
var DELAY_BEFORE_HIDING_CONTROLS = 3000;
|
|
var wrapper = document.getElementById('viewerContainer');
|
|
if (this.presentationControlsTimeout) {
|
|
clearTimeout(this.presentationControlsTimeout);
|
|
} else {
|
|
wrapper.classList.add('presentationControls');
|
|
}
|
|
this.presentationControlsTimeout = setTimeout(function hideControls() {
|
|
wrapper.classList.remove('presentationControls');
|
|
delete PDFView.presentationControlsTimeout;
|
|
}, DELAY_BEFORE_HIDING_CONTROLS);
|
|
},
|
|
|
|
hidePresentationControls: function pdfViewShowPresentationControls() {
|
|
if (!this.presentationControlsTimeout) {
|
|
return;
|
|
}
|
|
clearTimeout(this.presentationControlsTimeout);
|
|
delete this.presentationControlsTimeout;
|
|
|
|
var wrapper = document.getElementById('viewerContainer');
|
|
wrapper.classList.remove('presentationControls');
|
|
},
|
|
|
|
rotatePages: function pdfViewPageRotation(delta) {
|
|
|
|
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.parseScale(this.currentScaleValue, true);
|
|
|
|
this.renderHighestPriority();
|
|
|
|
var currentPage = this.pages[this.page - 1];
|
|
if (!currentPage) {
|
|
return;
|
|
}
|
|
|
|
// Wait for presentation mode to take effect
|
|
setTimeout(function() {
|
|
currentPage.scrollIntoView();
|
|
}, 0);
|
|
},
|
|
|
|
/**
|
|
* 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.rotate;
|
|
|
|
this.renderingState = RenderingStates.INITIAL;
|
|
this.resume = null;
|
|
|
|
this.textContent = null;
|
|
this.textLayer = 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;
|
|
this.viewport = pdfPage.getViewport(this.scale);
|
|
this.stats = pdfPage.stats;
|
|
this.update();
|
|
};
|
|
|
|
this.destroy = function pageViewDestroy() {
|
|
this.update();
|
|
if (this.pdfPage) {
|
|
this.pdfPage.destroy();
|
|
}
|
|
};
|
|
|
|
this.update = function pageViewUpdate(scale, rotation) {
|
|
if (this.renderTask) {
|
|
this.renderTask.cancel();
|
|
}
|
|
this.resume = null;
|
|
this.renderingState = RenderingStates.INITIAL;
|
|
|
|
if (typeof rotation !== 'undefined') {
|
|
this.rotation = rotation;
|
|
}
|
|
|
|
this.scale = scale || this.scale;
|
|
|
|
var totalRotation = (this.rotation + this.pdfPageRotate) % 360;
|
|
this.viewport = this.viewport.clone({
|
|
scale: this.scale,
|
|
rotation: totalRotation
|
|
});
|
|
|
|
div.style.width = Math.floor(this.viewport.width) + 'px';
|
|
div.style.height = Math.floor(this.viewport.height) + 'px';
|
|
|
|
while (div.hasChildNodes())
|
|
div.removeChild(div.lastChild);
|
|
div.removeAttribute('data-loaded');
|
|
|
|
delete this.canvas;
|
|
|
|
this.loadingIconDiv = document.createElement('div');
|
|
this.loadingIconDiv.className = 'loadingIcon';
|
|
div.appendChild(this.loadingIconDiv);
|
|
};
|
|
|
|
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
|
|
});
|
|
|
|
function setupAnnotations(annotationsDiv, pdfPage, viewport) {
|
|
|
|
function bindLink(link, dest) {
|
|
link.href = PDFView.getDestinationHash(dest);
|
|
link.onclick = function pageViewSetupLinksOnclick() {
|
|
if (dest)
|
|
PDFView.navigateTo(dest);
|
|
return false;
|
|
};
|
|
link.className = 'internalLink';
|
|
}
|
|
|
|
function bindNamedAction(link, action) {
|
|
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) {
|
|
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);
|
|
}
|
|
}
|
|
|
|
annotationsDiv.appendChild(element);
|
|
}
|
|
});
|
|
}
|
|
|
|
this.getPagePoint = function pageViewGetPagePoint(x, y) {
|
|
return this.viewport.convertToPdfPoint(x, y);
|
|
};
|
|
|
|
this.scrollIntoView = function pageViewScrollIntoView(dest) {
|
|
if (!dest) {
|
|
scrollIntoView(div);
|
|
return;
|
|
}
|
|
if (PDFView.isPresentationMode) { // Avoid breaking presentation mode.
|
|
PDFView.page = id;
|
|
return;
|
|
}
|
|
|
|
var x = 0, y = 0;
|
|
var width = 0, height = 0, widthScale, heightScale;
|
|
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 : this.height / this.scale;
|
|
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];
|
|
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(widthScale, heightScale);
|
|
break;
|
|
default:
|
|
return;
|
|
}
|
|
|
|
if (scale && scale !== PDFView.currentScale) {
|
|
PDFView.parseScale(scale, true, true);
|
|
} else if (PDFView.currentScale === UNKNOWN_SCALE) {
|
|
PDFView.parseScale(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)
|
|
];
|
|
setTimeout(function pageViewScrollIntoViewRelayout() {
|
|
// letting page to re-layout before scrolling
|
|
var scale = PDFView.currentScale;
|
|
var x = Math.min(boundingRect[0][0], boundingRect[1][0]);
|
|
var y = Math.min(boundingRect[0][1], boundingRect[1][1]);
|
|
var width = Math.abs(boundingRect[0][0] - boundingRect[1][0]);
|
|
var height = Math.abs(boundingRect[0][1] - boundingRect[1][1]);
|
|
|
|
scrollIntoView(div, {left: x, top: y, width: width, height: height});
|
|
}, 0);
|
|
};
|
|
|
|
this.getTextContent = function pageviewGetTextContent() {
|
|
if (!this.textContent) {
|
|
this.textContent = this.pdfPage.getTextContent();
|
|
}
|
|
return this.textContent;
|
|
};
|
|
|
|
this.draw = function pageviewDraw(callback) {
|
|
var pdfPage = this.pdfPage;
|
|
|
|
if (!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;
|
|
|
|
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 outputScale = getOutputScale();
|
|
canvas.width = Math.floor(viewport.width) * outputScale.sx;
|
|
canvas.height = Math.floor(viewport.height) * outputScale.sy;
|
|
|
|
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
|
|
}) : null;
|
|
|
|
if (outputScale.scaled) {
|
|
var cssScale = 'scale(' + (1 / outputScale.sx) + ', ' +
|
|
(1 / outputScale.sy) + ')';
|
|
CustomStyle.setProp('transform' , canvas, cssScale);
|
|
CustomStyle.setProp('transformOrigin' , canvas, '0% 0%');
|
|
if (textLayerDiv) {
|
|
CustomStyle.setProp('transform' , textLayerDiv, cssScale);
|
|
CustomStyle.setProp('transformOrigin' , textLayerDiv, '0% 0%');
|
|
}
|
|
}
|
|
|
|
var ctx = canvas.getContext('2d');
|
|
// 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 (FIREFOX || MOZCENTRAL)
|
|
// // Checking if document fonts are used only once
|
|
// var checkIfDocumentFontsUsed = !PDFView.pdfDocument.embeddedFontsUsed;
|
|
//#endif
|
|
|
|
// 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 (FIREFOX || MOZCENTRAL)
|
|
// if (checkIfDocumentFontsUsed && PDFView.pdfDocument.embeddedFontsUsed &&
|
|
// PDFJS.disableFontFace) {
|
|
// console.error(mozL10n.get('web_fonts_disabled', null,
|
|
// 'Web fonts are disabled: unable to use embedded PDF fonts.'));
|
|
// PDFView.fallback();
|
|
// }
|
|
// if (self.textLayer && self.textLayer.textDivs &&
|
|
// self.textLayer.textDivs.length > 0 &&
|
|
// !PDFView.supportsDocumentColors) {
|
|
// console.error(mozL10n.get('document_colors_disabled', null,
|
|
// 'PDF documents are not allowed to use their own colors: ' +
|
|
// '\'Allow pages to choose their own colors\' ' +
|
|
// 'is deactivated in the browser.'));
|
|
// PDFView.fallback();
|
|
// }
|
|
//#endif
|
|
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);
|
|
|
|
//#if (FIREFOX || MOZCENTRAL)
|
|
// FirefoxCom.request('reportTelemetry', JSON.stringify({
|
|
// type: 'pageInfo'
|
|
// }));
|
|
// // TODO add stream types report here
|
|
//#endif
|
|
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.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 = this.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');
|
|
printContainer.appendChild(canvas);
|
|
|
|
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).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);
|
|
}
|
|
};
|
|
};
|
|
|
|
//#include thumbnail_view.js
|
|
//#include text_layer_builder.js
|
|
|
|
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);
|
|
}
|
|
}
|
|
};
|
|
|
|
document.addEventListener('DOMContentLoaded', function webViewerLoad(evt) {
|
|
PDFView.initialize();
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL)
|
|
var params = PDFView.parseQueryString(document.location.search.substring(1));
|
|
var file = params.file || DEFAULT_URL;
|
|
//#else
|
|
//var file = window.location.href.split('#')[0];
|
|
//#endif
|
|
|
|
//#if CHROME
|
|
//if (location.protocol !== 'chrome-extension:') {
|
|
// file = location.href.split('#')[0];
|
|
//}
|
|
//#endif
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL || CHROME)
|
|
var fileInput = document.createElement('input');
|
|
fileInput.id = 'fileInput';
|
|
fileInput.className = 'fileInput';
|
|
fileInput.setAttribute('type', 'file');
|
|
fileInput.setAttribute('style',
|
|
'visibility: hidden; position: fixed; right: 0; top: 0');
|
|
fileInput.oncontextmenu = noContextMenuHandler;
|
|
document.body.appendChild(fileInput);
|
|
|
|
if (!window.File || !window.FileReader || !window.FileList || !window.Blob) {
|
|
document.getElementById('openFile').setAttribute('hidden', 'true');
|
|
} else {
|
|
document.getElementById('fileInput').value = null;
|
|
}
|
|
//#else
|
|
//document.getElementById('openFile').setAttribute('hidden', 'true');
|
|
//#endif
|
|
|
|
// 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 !(FIREFOX || MOZCENTRAL)
|
|
var locale = navigator.language;
|
|
if ('locale' in hashParams)
|
|
locale = hashParams['locale'];
|
|
mozL10n.setLanguage(locale);
|
|
//#endif
|
|
//#if (FIREFOX || MOZCENTRAL)
|
|
//if (!PDFView.supportsDocumentFonts) {
|
|
// PDFJS.disableFontFace = true;
|
|
//}
|
|
//#endif
|
|
|
|
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 !(FIREFOX || MOZCENTRAL)
|
|
if ('pdfBug' in hashParams) {
|
|
//#else
|
|
//if ('pdfBug' in hashParams && FirefoxCom.requestSync('pdfBugEnabled')) {
|
|
//#endif
|
|
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');
|
|
}
|
|
|
|
if (!PDFView.supportsFullscreen) {
|
|
document.getElementById('presentationMode').classList.add('hidden');
|
|
}
|
|
|
|
if (PDFView.supportsIntegratedFind) {
|
|
document.getElementById('viewFind').classList.add('hidden');
|
|
}
|
|
|
|
// Listen for warnings to trigger the fallback UI. Errors should be caught
|
|
// and call PDFView.error() so we don't need to listen for those.
|
|
PDFJS.LogManager.addLogger({
|
|
warn: function() {
|
|
PDFView.fallback();
|
|
}
|
|
});
|
|
|
|
// 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('presentationMode').addEventListener('click',
|
|
function() {
|
|
PDFView.presentationMode();
|
|
});
|
|
|
|
//#if !(FIREFOX || MOZCENTRAL || CHROME)
|
|
document.getElementById('openFile').addEventListener('click',
|
|
function() {
|
|
document.getElementById('fileInput').click();
|
|
});
|
|
//#endif
|
|
|
|
document.getElementById('print').addEventListener('click',
|
|
function() {
|
|
window.print();
|
|
});
|
|
|
|
document.getElementById('download').addEventListener('click',
|
|
function() {
|
|
PDFView.download();
|
|
});
|
|
|
|
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.parseScale(this.value);
|
|
});
|
|
|
|
document.getElementById('firstPage').addEventListener('click',
|
|
function() {
|
|
PDFView.page = 1;
|
|
});
|
|
|
|
document.getElementById('lastPage').addEventListener('click',
|
|
function() {
|
|
PDFView.page = PDFView.pdfDocument.numPages;
|
|
});
|
|
|
|
document.getElementById('pageRotateCcw').addEventListener('click',
|
|
function() {
|
|
PDFView.rotatePages(-90);
|
|
});
|
|
|
|
document.getElementById('pageRotateCw').addEventListener('click',
|
|
function() {
|
|
PDFView.rotatePages(90);
|
|
});
|
|
|
|
//#if (FIREFOX || MOZCENTRAL)
|
|
//PDFView.setTitleUsingUrl(file);
|
|
//PDFView.initPassiveLoading();
|
|
//return;
|
|
//#endif
|
|
|
|
//#if !B2G
|
|
PDFView.open(file, 0);
|
|
//#endif
|
|
}, 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 (!PDFView.isPresentationMode) {
|
|
updateViewarea.inProgress = true; // used in "set page"
|
|
PDFView.page = currentId;
|
|
updateViewarea.inProgress = false;
|
|
}
|
|
|
|
var currentScale = PDFView.currentScale;
|
|
var currentScaleValue = PDFView.currentScaleValue;
|
|
var normalizedScaleValue = currentScaleValue == currentScale ?
|
|
currentScale * 100 : currentScaleValue;
|
|
|
|
var pageNumber = firstPage.id;
|
|
var pdfOpenParams = '#page=' + pageNumber;
|
|
pdfOpenParams += '&zoom=' + normalizedScaleValue;
|
|
var currentPage = PDFView.pages[pageNumber - 1];
|
|
var topLeft = currentPage.getPagePoint(PDFView.container.scrollLeft,
|
|
(PDFView.container.scrollTop - firstPage.y));
|
|
pdfOpenParams += ',' + Math.round(topLeft[0]) + ',' + Math.round(topLeft[1]);
|
|
|
|
var store = PDFView.store;
|
|
store.initializedPromise.then(function() {
|
|
store.set('exists', true);
|
|
store.set('page', pageNumber);
|
|
store.set('zoom', normalizedScaleValue);
|
|
store.set('scrollLeft', Math.round(topLeft[0]));
|
|
store.set('scrollTop', Math.round(topLeft[1]));
|
|
});
|
|
var href = PDFView.getAnchorUrl(pdfOpenParams);
|
|
document.getElementById('viewBookmark').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.parseScale(document.getElementById('scaleSelect').value);
|
|
}
|
|
updateViewarea();
|
|
});
|
|
|
|
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;
|
|
|
|
// 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);
|
|
};
|
|
|
|
var file = files[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('download').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();
|
|
|
|
// 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.
|
|
PDFView.animationStartedPromise.then(function() {
|
|
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;');
|
|
}
|
|
});
|
|
}, 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);
|
|
}
|
|
|
|
}
|
|
document.getElementById('previous').disabled = (page <= 1);
|
|
document.getElementById('next').disabled = (page >= PDFView.pages.length);
|
|
}, true);
|
|
|
|
// Firefox specific event, so that we can prevent browser from zooming
|
|
window.addEventListener('DOMMouseScroll', function(evt) {
|
|
if (evt.ctrlKey) {
|
|
evt.preventDefault();
|
|
|
|
var ticks = evt.detail;
|
|
var direction = (ticks > 0) ? 'zoomOut' : 'zoomIn';
|
|
for (var i = 0, length = Math.abs(ticks); i < length; i++)
|
|
PDFView[direction]();
|
|
} else if (PDFView.isPresentationMode) {
|
|
var FIREFOX_DELTA_FACTOR = -40;
|
|
PDFView.mouseScroll(evt.detail * FIREFOX_DELTA_FACTOR);
|
|
}
|
|
}, false);
|
|
|
|
window.addEventListener('mousemove', function mousemove(evt) {
|
|
if (PDFView.isPresentationMode) {
|
|
PDFView.showPresentationControls();
|
|
}
|
|
}, false);
|
|
|
|
window.addEventListener('mousedown', function mousedown(evt) {
|
|
if (PDFView.isPresentationMode && evt.button === 0) {
|
|
// Enable clicking of links in presentation mode.
|
|
// Note: Only links that point to the currently loaded PDF document works.
|
|
var targetHref = evt.target.href;
|
|
var internalLink = targetHref && (targetHref.replace(/#.*$/, '') ===
|
|
window.location.href.replace(/#.*$/, ''));
|
|
if (!internalLink) {
|
|
// Unless an internal link was clicked, advance a page in presentation
|
|
// mode.
|
|
evt.preventDefault();
|
|
PDFView.page++;
|
|
}
|
|
}
|
|
}, false);
|
|
|
|
window.addEventListener('click', function click(evt) {
|
|
if (PDFView.isPresentationMode && evt.button === 0) {
|
|
// Necessary since preventDefault() in 'mousedown' won't stop
|
|
// the event propagation in all circumstances.
|
|
evt.preventDefault();
|
|
}
|
|
}, false);
|
|
|
|
window.addEventListener('keydown', function keydown(evt) {
|
|
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.toggle();
|
|
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
|
|
PDFView.parseScale(DEFAULT_SCALE, true);
|
|
handled = false; // keeping it unhandled (to restore page zoom to 100%)
|
|
break;
|
|
}
|
|
}
|
|
|
|
// CTRL+ALT or Option+Command
|
|
if (cmd === 3 || cmd === 10) {
|
|
switch (evt.keyCode) {
|
|
case 80: // p
|
|
PDFView.presentationMode();
|
|
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');
|
|
if (curElement && (curElement.tagName.toUpperCase() === 'INPUT' ||
|
|
curElement.tagName.toUpperCase() === 'SELECT')) {
|
|
return;
|
|
}
|
|
var controlsElement = document.getElementById('toolbar');
|
|
while (curElement) {
|
|
if (curElement === controlsElement && !PDFView.isPresentationMode)
|
|
return; // ignoring if the 'toolbar' element is focused
|
|
curElement = curElement.parentNode;
|
|
}
|
|
|
|
if (cmd === 0) { // no control key pressed at all.
|
|
switch (evt.keyCode) {
|
|
case 38: // up arrow
|
|
case 33: // pg up
|
|
case 8: // backspace
|
|
if (!PDFView.isPresentationMode &&
|
|
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 (!PDFView.supportsIntegratedFind && PDFFindBar.opened) {
|
|
PDFFindBar.close();
|
|
handled = true;
|
|
}
|
|
break;
|
|
case 40: // down arrow
|
|
case 34: // pg down
|
|
case 32: // spacebar
|
|
if (!PDFView.isPresentationMode &&
|
|
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 (PDFView.isPresentationMode) {
|
|
PDFView.page = 1;
|
|
handled = true;
|
|
}
|
|
break;
|
|
case 35: // end
|
|
if (PDFView.isPresentationMode) {
|
|
PDFView.page = PDFView.pdfDocument.numPages;
|
|
handled = true;
|
|
}
|
|
break;
|
|
|
|
case 82: // 'r'
|
|
PDFView.rotatePages(90);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (cmd === 4) { // shift-key
|
|
switch (evt.keyCode) {
|
|
case 32: // spacebar
|
|
if (!PDFView.isPresentationMode &&
|
|
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 (PDFView.isPresentationMode) {
|
|
PDFHistory.back();
|
|
handled = true;
|
|
}
|
|
break;
|
|
case 39: // right arrow
|
|
if (PDFView.isPresentationMode) {
|
|
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 presentationModeClosure() {
|
|
function presentationModeChange(e) {
|
|
var isPresentationMode = document.fullscreenElement ||
|
|
document.mozFullScreen ||
|
|
document.webkitIsFullScreen;
|
|
|
|
if (isPresentationMode) {
|
|
PDFView.enterPresentationMode();
|
|
} else {
|
|
PDFView.exitPresentationMode();
|
|
}
|
|
}
|
|
|
|
window.addEventListener('fullscreenchange', presentationModeChange, false);
|
|
window.addEventListener('mozfullscreenchange', presentationModeChange, false);
|
|
window.addEventListener('webkitfullscreenchange', presentationModeChange,
|
|
false);
|
|
})();
|
|
|
|
(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 PDFJS.Promise();
|
|
requestAnimationFrame(function onAnimationFrame() {
|
|
PDFView.animationStartedPromise.resolve();
|
|
});
|
|
})();
|
|
|
|
//#if B2G
|
|
//window.navigator.mozSetMessageHandler('activity', function(activity) {
|
|
// var url = activity.source.data.url;
|
|
// PDFJS.maxImageSize = 1024 * 1024;
|
|
// PDFView.open(url);
|
|
// var cancelButton = document.getElementById('activityClose');
|
|
// cancelButton.addEventListener('click', function() {
|
|
// activity.postResult('close');
|
|
// });
|
|
//});
|
|
//#endif
|