tenfourfox/browser/extensions/shumway/chrome/bootstrap-content.js
Cameron Kaiser c9b2922b70 hello FPR
2017-04-19 00:56:45 -07:00

87 lines
2.4 KiB
JavaScript

/*
* Copyright 2014 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.
*/
'use strict';
(function contentScriptClosure() {
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cm = Components.manager;
const Cu = Components.utils;
const Cr = Components.results;
// we need to use closure here -- we are running in the global context
Cu.import('resource://gre/modules/Services.jsm');
var isRemote = Services.appinfo.processType ===
Services.appinfo.PROCESS_TYPE_CONTENT;
var isStarted = false;
function startup() {
if (isStarted) {
return;
}
isStarted = true;
Cu.import('resource://shumway/ShumwayBootstrapUtils.jsm');
ShumwayBootstrapUtils.register();
}
function shutdown() {
if (!isStarted) {
return;
}
isStarted = false;
ShumwayBootstrapUtils.unregister();
Cu.unload('resource://shumway/ShumwayBootstrapUtils.jsm');
}
function updateSettings() {
let mm = Cc["@mozilla.org/childprocessmessagemanager;1"]
.getService(Ci.nsISyncMessageSender);
var results = mm.sendSyncMessage('Shumway:Chrome:isEnabled');
var isEnabled = results.some(function (item) {
return item;
});
if (isEnabled) {
startup();
} else {
shutdown();
}
}
if (isRemote && typeof ShumwayBootstrapUtils !== 'undefined') {
// Treat content as non-remote when bootstrap.js or ShumwayUtils.jsm
// already registered the Shumway components for current content scope.
isRemote = false;
}
if (isRemote) {
addMessageListener('Shumway:Child:refreshSettings', updateSettings);
updateSettings();
addMessageListener('Shumway:Child:shutdown', function shutdownListener(e) {
removeMessageListener('Shumway:Child:refreshSettings', updateSettings);
removeMessageListener('Shumway:Child:shutdown', shutdownListener);
shutdown();
});
}
})();