mirror of
https://github.com/classilla/tenfourfox.git
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131 lines
3.7 KiB
JavaScript
131 lines
3.7 KiB
JavaScript
/* 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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var EXPORTED_SYMBOLS = ["ShumwayUtils"];
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const PREF_PREFIX = 'shumway.';
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const PREF_DISABLED = PREF_PREFIX + 'disabled';
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const PREF_WHITELIST = PREF_PREFIX + 'swf.whitelist';
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var Cc = Components.classes;
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var Ci = Components.interfaces;
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var Cm = Components.manager;
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var Cu = Components.utils;
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Cu.import('resource://gre/modules/XPCOMUtils.jsm');
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Cu.import('resource://gre/modules/Services.jsm');
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function getBoolPref(pref, def) {
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try {
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return Services.prefs.getBoolPref(pref);
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} catch (ex) {
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return def;
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}
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}
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function log(str) {
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dump(str + '\n');
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}
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var ShumwayUtils = {
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QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver]),
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_registered: false,
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init: function init() {
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this.migratePreferences();
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if (this.enabled)
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this._ensureRegistered();
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else
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this._ensureUnregistered();
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Cc["@mozilla.org/parentprocessmessagemanager;1"]
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.getService(Ci.nsIMessageBroadcaster)
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.addMessageListener('Shumway:Chrome:isEnabled', this);
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// Listen for when shumway is completely disabled.
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Services.prefs.addObserver(PREF_DISABLED, this, false);
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},
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migratePreferences: function migratePreferences() {
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// At one point we had shumway.disabled set to true by default,
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// and we are trying to replace it with shumway.swf.whitelist:
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// checking if the user already changed it before to reset
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// the whitelist to '*'.
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if (Services.prefs.prefHasUserValue(PREF_DISABLED) &&
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!Services.prefs.prefHasUserValue(PREF_WHITELIST) &&
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!getBoolPref(PREF_DISABLED, false)) {
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// The user is already using Shumway -- enabling all web sites.
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Services.prefs.setCharPref(PREF_WHITELIST, '*');
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}
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},
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// nsIObserver
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observe: function observe(aSubject, aTopic, aData) {
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if (this.enabled)
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this._ensureRegistered();
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else
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this._ensureUnregistered();
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},
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receiveMessage: function(message) {
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switch (message.name) {
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case 'Shumway:Chrome:isEnabled':
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return this.enabled;
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}
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},
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/**
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* shumway is only enabled if the global switch enabling is true.
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* @return {boolean} Wether or not it's enabled.
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*/
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get enabled() {
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return !getBoolPref(PREF_DISABLED, true);
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},
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_ensureRegistered: function _ensureRegistered() {
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if (this._registered)
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return;
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// Load the component and register it.
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Cu.import('resource://shumway/ShumwayBootstrapUtils.jsm');
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ShumwayBootstrapUtils.register();
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this._registered = true;
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log('Shumway is registered');
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let globalMM = Cc['@mozilla.org/globalmessagemanager;1']
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.getService(Ci.nsIFrameScriptLoader);
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globalMM.broadcastAsyncMessage('Shumway:Child:refreshSettings');
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},
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_ensureUnregistered: function _ensureUnregistered() {
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if (!this._registered)
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return;
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// Remove the contract/component.
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ShumwayBootstrapUtils.unregister();
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Cu.unload('resource://shumway/ShumwayBootstrapUtils.jsm');
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this._registered = false;
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log('Shumway is unregistered');
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let globalMM = Cc['@mozilla.org/globalmessagemanager;1']
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.getService(Ci.nsIFrameScriptLoader);
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globalMM.broadcastAsyncMessage('Shumway:Child:refreshSettings');
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}
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};
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