mirror of
https://github.com/pierre42100/comunic
synced 2024-11-17 02:51:13 +00:00
335 lines
11 KiB
JavaScript
Executable File
335 lines
11 KiB
JavaScript
Executable File
/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */
|
|
/* Copyright 2012 Mozilla Foundation
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
/* jshint esnext:true */
|
|
/* globals Components, Services, XPCOMUtils, PdfjsChromeUtils, PdfRedirector,
|
|
PdfjsContentUtils, DEFAULT_PREFERENCES, PdfStreamConverter */
|
|
|
|
'use strict';
|
|
|
|
var EXPORTED_SYMBOLS = ['PdfJs'];
|
|
|
|
const Cc = Components.classes;
|
|
const Ci = Components.interfaces;
|
|
const Cr = Components.results;
|
|
const Cm = Components.manager;
|
|
const Cu = Components.utils;
|
|
|
|
const PREF_PREFIX = 'pdfjs';
|
|
const PREF_DISABLED = PREF_PREFIX + '.disabled';
|
|
const PREF_MIGRATION_VERSION = PREF_PREFIX + '.migrationVersion';
|
|
const PREF_PREVIOUS_ACTION = PREF_PREFIX + '.previousHandler.preferredAction';
|
|
const PREF_PREVIOUS_ASK = PREF_PREFIX +
|
|
'.previousHandler.alwaysAskBeforeHandling';
|
|
const PREF_DISABLED_PLUGIN_TYPES = 'plugin.disable_full_page_plugin_for_types';
|
|
const TOPIC_PDFJS_HANDLER_CHANGED = 'pdfjs:handlerChanged';
|
|
const TOPIC_PLUGINS_LIST_UPDATED = 'plugins-list-updated';
|
|
const TOPIC_PLUGIN_INFO_UPDATED = 'plugin-info-updated';
|
|
const PDF_CONTENT_TYPE = 'application/pdf';
|
|
|
|
Cu.import('resource://gre/modules/XPCOMUtils.jsm');
|
|
Cu.import('resource://gre/modules/Services.jsm');
|
|
|
|
let Svc = {};
|
|
XPCOMUtils.defineLazyServiceGetter(Svc, 'mime',
|
|
'@mozilla.org/mime;1',
|
|
'nsIMIMEService');
|
|
XPCOMUtils.defineLazyServiceGetter(Svc, 'pluginHost',
|
|
'@mozilla.org/plugin/host;1',
|
|
'nsIPluginHost');
|
|
XPCOMUtils.defineLazyModuleGetter(this, 'PdfjsChromeUtils',
|
|
'resource://pdf.js/PdfjsChromeUtils.jsm');
|
|
XPCOMUtils.defineLazyModuleGetter(this, 'PdfjsContentUtils',
|
|
'resource://pdf.js/PdfjsContentUtils.jsm');
|
|
|
|
function getBoolPref(aPref, aDefaultValue) {
|
|
try {
|
|
return Services.prefs.getBoolPref(aPref);
|
|
} catch (ex) {
|
|
return aDefaultValue;
|
|
}
|
|
}
|
|
|
|
function getIntPref(aPref, aDefaultValue) {
|
|
try {
|
|
return Services.prefs.getIntPref(aPref);
|
|
} catch (ex) {
|
|
return aDefaultValue;
|
|
}
|
|
}
|
|
|
|
function isDefaultHandler() {
|
|
if (Services.appinfo.processType === Services.appinfo.PROCESS_TYPE_CONTENT) {
|
|
return PdfjsContentUtils.isDefaultHandlerApp();
|
|
}
|
|
return PdfjsChromeUtils.isDefaultHandlerApp();
|
|
}
|
|
|
|
function initializeDefaultPreferences() {
|
|
//#include ../../../web/default_preferences.js
|
|
|
|
var defaultBranch = Services.prefs.getDefaultBranch(PREF_PREFIX + '.');
|
|
var defaultValue;
|
|
for (var key in DEFAULT_PREFERENCES) {
|
|
defaultValue = DEFAULT_PREFERENCES[key];
|
|
switch (typeof defaultValue) {
|
|
case 'boolean':
|
|
defaultBranch.setBoolPref(key, defaultValue);
|
|
break;
|
|
case 'number':
|
|
defaultBranch.setIntPref(key, defaultValue);
|
|
break;
|
|
case 'string':
|
|
defaultBranch.setCharPref(key, defaultValue);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Register/unregister a constructor as a factory.
|
|
function Factory() {}
|
|
Factory.prototype = {
|
|
register: function register(targetConstructor) {
|
|
var proto = targetConstructor.prototype;
|
|
this._classID = proto.classID;
|
|
|
|
var factory = XPCOMUtils._getFactory(targetConstructor);
|
|
this._factory = factory;
|
|
|
|
var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar);
|
|
registrar.registerFactory(proto.classID, proto.classDescription,
|
|
proto.contractID, factory);
|
|
},
|
|
|
|
unregister: function unregister() {
|
|
var registrar = Cm.QueryInterface(Ci.nsIComponentRegistrar);
|
|
registrar.unregisterFactory(this._classID, this._factory);
|
|
this._factory = null;
|
|
}
|
|
};
|
|
|
|
let PdfJs = {
|
|
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
|
|
_registered: false,
|
|
_initialized: false,
|
|
|
|
init: function init(remote) {
|
|
if (Services.appinfo.processType !==
|
|
Services.appinfo.PROCESS_TYPE_DEFAULT) {
|
|
throw new Error('PdfJs.init should only get called ' +
|
|
'in the parent process.');
|
|
}
|
|
PdfjsChromeUtils.init();
|
|
if (!remote) {
|
|
PdfjsContentUtils.init();
|
|
}
|
|
this.initPrefs();
|
|
this.updateRegistration();
|
|
},
|
|
|
|
initPrefs: function initPrefs() {
|
|
if (this._initialized) {
|
|
return;
|
|
}
|
|
this._initialized = true;
|
|
|
|
if (!getBoolPref(PREF_DISABLED, true)) {
|
|
this._migrate();
|
|
}
|
|
|
|
// Listen for when pdf.js is completely disabled or a different pdf handler
|
|
// is chosen.
|
|
Services.prefs.addObserver(PREF_DISABLED, this, false);
|
|
Services.prefs.addObserver(PREF_DISABLED_PLUGIN_TYPES, this, false);
|
|
Services.obs.addObserver(this, TOPIC_PDFJS_HANDLER_CHANGED, false);
|
|
Services.obs.addObserver(this, TOPIC_PLUGINS_LIST_UPDATED, false);
|
|
Services.obs.addObserver(this, TOPIC_PLUGIN_INFO_UPDATED, false);
|
|
|
|
initializeDefaultPreferences();
|
|
},
|
|
|
|
updateRegistration: function updateRegistration() {
|
|
if (this.enabled) {
|
|
this._ensureRegistered();
|
|
} else {
|
|
this._ensureUnregistered();
|
|
}
|
|
},
|
|
|
|
uninit: function uninit() {
|
|
if (this._initialized) {
|
|
Services.prefs.removeObserver(PREF_DISABLED, this, false);
|
|
Services.prefs.removeObserver(PREF_DISABLED_PLUGIN_TYPES, this, false);
|
|
Services.obs.removeObserver(this, TOPIC_PDFJS_HANDLER_CHANGED, false);
|
|
Services.obs.removeObserver(this, TOPIC_PLUGINS_LIST_UPDATED, false);
|
|
Services.obs.removeObserver(this, TOPIC_PLUGIN_INFO_UPDATED, false);
|
|
this._initialized = false;
|
|
}
|
|
this._ensureUnregistered();
|
|
},
|
|
|
|
_migrate: function migrate() {
|
|
const VERSION = 2;
|
|
var currentVersion = getIntPref(PREF_MIGRATION_VERSION, 0);
|
|
if (currentVersion >= VERSION) {
|
|
return;
|
|
}
|
|
// Make pdf.js the default pdf viewer on the first migration.
|
|
if (currentVersion < 1) {
|
|
this._becomeHandler();
|
|
}
|
|
if (currentVersion < 2) {
|
|
// cleaning up of unused database preference (see #3994)
|
|
Services.prefs.clearUserPref(PREF_PREFIX + '.database');
|
|
}
|
|
Services.prefs.setIntPref(PREF_MIGRATION_VERSION, VERSION);
|
|
},
|
|
|
|
_becomeHandler: function _becomeHandler() {
|
|
let handlerInfo = Svc.mime.getFromTypeAndExtension(PDF_CONTENT_TYPE, 'pdf');
|
|
let prefs = Services.prefs;
|
|
if (handlerInfo.preferredAction !== Ci.nsIHandlerInfo.handleInternally &&
|
|
handlerInfo.preferredAction !== false) {
|
|
// Store the previous settings of preferredAction and
|
|
// alwaysAskBeforeHandling in case we need to revert them in a hotfix that
|
|
// would turn pdf.js off.
|
|
prefs.setIntPref(PREF_PREVIOUS_ACTION, handlerInfo.preferredAction);
|
|
prefs.setBoolPref(PREF_PREVIOUS_ASK, handlerInfo.alwaysAskBeforeHandling);
|
|
}
|
|
|
|
let handlerService = Cc['@mozilla.org/uriloader/handler-service;1'].
|
|
getService(Ci.nsIHandlerService);
|
|
|
|
// Change and save mime handler settings.
|
|
handlerInfo.alwaysAskBeforeHandling = false;
|
|
handlerInfo.preferredAction = Ci.nsIHandlerInfo.handleInternally;
|
|
handlerService.store(handlerInfo);
|
|
|
|
// Also disable any plugins for pdfs.
|
|
var stringTypes = '';
|
|
var types = [];
|
|
if (prefs.prefHasUserValue(PREF_DISABLED_PLUGIN_TYPES)) {
|
|
stringTypes = prefs.getCharPref(PREF_DISABLED_PLUGIN_TYPES);
|
|
}
|
|
if (stringTypes !== '') {
|
|
types = stringTypes.split(',');
|
|
}
|
|
|
|
if (types.indexOf(PDF_CONTENT_TYPE) === -1) {
|
|
types.push(PDF_CONTENT_TYPE);
|
|
}
|
|
prefs.setCharPref(PREF_DISABLED_PLUGIN_TYPES, types.join(','));
|
|
|
|
// Update the category manager in case the plugins are already loaded.
|
|
let categoryManager = Cc['@mozilla.org/categorymanager;1'];
|
|
categoryManager.getService(Ci.nsICategoryManager).
|
|
deleteCategoryEntry('Gecko-Content-Viewers',
|
|
PDF_CONTENT_TYPE,
|
|
false);
|
|
},
|
|
|
|
// nsIObserver
|
|
observe: function observe(aSubject, aTopic, aData) {
|
|
this.updateRegistration();
|
|
if (Services.appinfo.processType ===
|
|
Services.appinfo.PROCESS_TYPE_DEFAULT) {
|
|
let jsm = 'resource://pdf.js/PdfjsChromeUtils.jsm';
|
|
let PdfjsChromeUtils = Components.utils.import(jsm, {}).PdfjsChromeUtils;
|
|
PdfjsChromeUtils.notifyChildOfSettingsChange();
|
|
}
|
|
},
|
|
|
|
/**
|
|
* pdf.js is only enabled if it is both selected as the pdf viewer and if the
|
|
* global switch enabling it is true.
|
|
* @return {boolean} Wether or not it's enabled.
|
|
*/
|
|
get enabled() {
|
|
var disabled = getBoolPref(PREF_DISABLED, true);
|
|
if (disabled) {
|
|
return false;
|
|
}
|
|
|
|
// Check if the 'application/pdf' preview handler is configured properly.
|
|
if (!isDefaultHandler()) {
|
|
return false;
|
|
}
|
|
|
|
// Check if we have disabled plugin handling of 'application/pdf' in prefs
|
|
if (Services.prefs.prefHasUserValue(PREF_DISABLED_PLUGIN_TYPES)) {
|
|
let disabledPluginTypes =
|
|
Services.prefs.getCharPref(PREF_DISABLED_PLUGIN_TYPES).split(',');
|
|
if (disabledPluginTypes.indexOf(PDF_CONTENT_TYPE) >= 0) {
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Check if there is an enabled pdf plugin.
|
|
// Note: this check is performed last because getPluginTags() triggers
|
|
// costly plugin list initialization (bug 881575)
|
|
let tags = Cc['@mozilla.org/plugin/host;1'].
|
|
getService(Ci.nsIPluginHost).
|
|
getPluginTags();
|
|
let enabledPluginFound = tags.some(function(tag) {
|
|
if (tag.disabled) {
|
|
return false;
|
|
}
|
|
let mimeTypes = tag.getMimeTypes();
|
|
return mimeTypes.some(function(mimeType) {
|
|
return mimeType === PDF_CONTENT_TYPE;
|
|
});
|
|
});
|
|
|
|
// Use pdf.js if pdf plugin is not present or disabled
|
|
return !enabledPluginFound;
|
|
},
|
|
|
|
_ensureRegistered: function _ensureRegistered() {
|
|
if (this._registered) {
|
|
return;
|
|
}
|
|
this._pdfStreamConverterFactory = new Factory();
|
|
Cu.import('resource://pdf.js/PdfStreamConverter.jsm');
|
|
this._pdfStreamConverterFactory.register(PdfStreamConverter);
|
|
|
|
this._pdfRedirectorFactory = new Factory();
|
|
Cu.import('resource://pdf.js/PdfRedirector.jsm');
|
|
this._pdfRedirectorFactory.register(PdfRedirector);
|
|
|
|
Svc.pluginHost.registerPlayPreviewMimeType(PDF_CONTENT_TYPE, true,
|
|
'data:application/x-moz-playpreview-pdfjs;,');
|
|
|
|
this._registered = true;
|
|
},
|
|
|
|
_ensureUnregistered: function _ensureUnregistered() {
|
|
if (!this._registered) {
|
|
return;
|
|
}
|
|
this._pdfStreamConverterFactory.unregister();
|
|
Cu.unload('resource://pdf.js/PdfStreamConverter.jsm');
|
|
delete this._pdfStreamConverterFactory;
|
|
|
|
this._pdfRedirectorFactory.unregister();
|
|
Cu.unload('resource://pdf.js/PdfRedirector.jsm');
|
|
delete this._pdfRedirectorFactory;
|
|
|
|
Svc.pluginHost.unregisterPlayPreviewMimeType(PDF_CONTENT_TYPE);
|
|
|
|
this._registered = false;
|
|
}
|
|
};
|