101 lines
2.9 KiB
JavaScript
101 lines
2.9 KiB
JavaScript
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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'use strict';
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function debug(s) {
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//dump('DEBUG RequestSyncScheduler: ' + s + '\n');
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}
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const {classes: Cc, interfaces: Ci, utils: Cu, results: Cr} = Components;
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Cu.import('resource://gre/modules/DOMRequestHelper.jsm');
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Cu.import('resource://gre/modules/XPCOMUtils.jsm');
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XPCOMUtils.defineLazyServiceGetter(this, 'cpmm',
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'@mozilla.org/childprocessmessagemanager;1',
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'nsIMessageSender');
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function RequestSyncScheduler() {
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debug('created');
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}
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RequestSyncScheduler.prototype = {
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__proto__: DOMRequestIpcHelper.prototype,
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classDescription: 'RequestSyncScheduler XPCOM Component',
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classID: Components.ID('{8ee5ab74-15c4-478f-9d32-67627b9f0f1a}'),
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contractID: '@mozilla.org/dom/request-sync-scheduler;1',
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QueryInterface: XPCOMUtils.generateQI([Ci.nsISupportsWeakReference,
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Ci.nsIObserver,
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Ci.nsIDOMGlobalPropertyInitializer]),
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_messages: [ 'RequestSync:Register:Return',
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'RequestSync:Unregister:Return',
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'RequestSync:Registrations:Return',
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'RequestSync:Registration:Return' ],
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init: function(aWindow) {
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debug('init');
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// DOMRequestIpcHelper.initHelper sets this._window
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this.initDOMRequestHelper(aWindow, this._messages);
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},
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register: function(aTask, aParams) {
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debug('register');
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return this.sendMessage('RequestSync:Register',
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{ task: aTask, params: aParams });
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},
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unregister: function(aTask) {
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debug('unregister');
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return this.sendMessage('RequestSync:Unregister',
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{ task: aTask });
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},
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registrations: function() {
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debug('registrations');
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return this.sendMessage('RequestSync:Registrations', {});
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},
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registration: function(aTask) {
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debug('registration');
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return this.sendMessage('RequestSync:Registration',
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{ task: aTask });
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},
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sendMessage: function(aMsg, aObj) {
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let self = this;
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return this.createPromiseWithId(function(aResolverId) {
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aObj.requestID = aResolverId;
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cpmm.sendAsyncMessage(aMsg, aObj, null,
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self._window.document.nodePrincipal);
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});
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},
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receiveMessage: function(aMessage) {
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debug('receiveMessage');
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let req = this.getPromiseResolver(aMessage.data.requestID);
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if (!req) {
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return;
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}
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if ('error' in aMessage.data) {
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req.reject(Cu.cloneInto(aMessage.data.error, this._window));
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return;
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}
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if ('results' in aMessage.data) {
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req.resolve(Cu.cloneInto(aMessage.data.results, this._window));
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return;
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}
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req.resolve();
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}
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};
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this.NSGetFactory = XPCOMUtils.generateNSGetFactory([RequestSyncScheduler]);
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