gecko/toolkit/components/startup/nsTryToClose.js

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/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the nsTryToClose component.
*
* The Initial Developer of the Original Code is
* Mozilla Corporation
* Portions created by the Initial Developer are Copyright (C) 2006
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Michael Wu <flamingice@sourmilk.net> (original author)
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cr = Components.results;
Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
function TryToClose() {}
TryToClose.prototype = {
observe: function (aSubject, aTopic, aData) {
switch (aTopic) {
case "app-startup":
var obsService = Cc["@mozilla.org/observer-service;1"].
getService(Ci.nsIObserverService);
obsService.addObserver(this, "quit-application-requested", true);
break;
case "quit-application-requested":
var windowMediator = Cc['@mozilla.org/appshell/window-mediator;1'].
getService(Ci.nsIWindowMediator);
var enumerator = windowMediator.getEnumerator(null);
while (enumerator.hasMoreElements()) {
var domWindow = enumerator.getNext();
if (("tryToClose" in domWindow) && !domWindow.tryToClose()) {
aSubject.QueryInterface(Ci.nsISupportsPRBool);
aSubject.data = true;
break;
}
}
break;
}
},
classID: Components.ID("{b69155f4-a8bf-453d-8653-91d1456e1d3d}"),
QueryInterface: XPCOMUtils.generateQI([Ci.nsIObserver,
Ci.nsISupportsWeakReference]),
};
var NSGetFactory = XPCOMUtils.generateNSGetFactory([TryToClose]);