michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: "use strict";
michael@0: 
michael@0: this.EXPORTED_SYMBOLS = [
michael@0:   "getAppInfo",
michael@0:   "updateAppInfo",
michael@0: ];
michael@0: 
michael@0: 
michael@0: const {interfaces: Ci, results: Cr, utils: Cu} = Components;
michael@0: 
michael@0: Cu.import("resource://gre/modules/XPCOMUtils.jsm");
michael@0: 
michael@0: let APP_INFO = {
michael@0:   vendor: "Mozilla",
michael@0:   name: "xpcshell",
michael@0:   ID: "xpcshell@tests.mozilla.org",
michael@0:   version: "1",
michael@0:   appBuildID: "20121107",
michael@0:   platformVersion: "p-ver",
michael@0:   platformBuildID: "20121106",
michael@0:   inSafeMode: false,
michael@0:   logConsoleErrors: true,
michael@0:   OS: "XPCShell",
michael@0:   XPCOMABI: "noarch-spidermonkey",
michael@0:   QueryInterface: XPCOMUtils.generateQI([Ci.nsIXULAppInfo, Ci.nsIXULRuntime]),
michael@0:   invalidateCachesOnRestart: function() {},
michael@0: };
michael@0: 
michael@0: 
michael@0: /**
michael@0:  * Obtain a reference to the current object used to define XULAppInfo.
michael@0:  */
michael@0: this.getAppInfo = function () { return APP_INFO; }
michael@0: 
michael@0: /**
michael@0:  * Update the current application info.
michael@0:  *
michael@0:  * If the argument is defined, it will be the object used. Else, APP_INFO is
michael@0:  * used.
michael@0:  *
michael@0:  * To change the current XULAppInfo, simply call this function. If there was
michael@0:  * a previously registered app info object, it will be unloaded and replaced.
michael@0:  */
michael@0: this.updateAppInfo = function (obj) {
michael@0:   obj = obj || APP_INFO;
michael@0:   APP_INFO = obj;
michael@0: 
michael@0:   let id = Components.ID("{fbfae60b-64a4-44ef-a911-08ceb70b9f31}");
michael@0:   let cid = "@mozilla.org/xre/app-info;1";
michael@0:   let registrar = Components.manager.QueryInterface(Ci.nsIComponentRegistrar);
michael@0: 
michael@0:   // Unregister an existing factory if one exists.
michael@0:   try {
michael@0:     let existing = Components.manager.getClassObjectByContractID(cid, Ci.nsIFactory);
michael@0:     registrar.unregisterFactory(id, existing);
michael@0:   } catch (ex) {}
michael@0: 
michael@0:   let factory = {
michael@0:     createInstance: function (outer, iid) {
michael@0:       if (outer != null) {
michael@0:         throw Cr.NS_ERROR_NO_AGGREGATION;
michael@0:       }
michael@0: 
michael@0:       return obj.QueryInterface(iid);
michael@0:     },
michael@0:   };
michael@0: 
michael@0:   registrar.registerFactory(id, "XULAppInfo", cid, factory);
michael@0: };
michael@0: