gecko-dev/testing/modules/AppInfo.jsm
Gregory Szorc 716d40560b Bug 809920 - Create testing/modules for shared testing-only JS modules; r=ted
Includes AppInfo.jsm with code for manipulating XULAppInfo.

--HG--
rename : services/healthreport/modules-testing/utils.jsm => testing/modules/AppInfo.jsm
2013-02-01 12:26:07 -08:00

75 lines
1.9 KiB
JavaScript

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