SoftwareTesting::Tools:QuitJS

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/*
  From mozilla/toolkit/content
  These files did not have a license
*/

function canQuitApplication()
{
  var os = Components.classes["@mozilla.org/observer-service;1"]
    .getService(Components.interfaces.nsIObserverService);
  if (!os) 
  {
    return true;
  }
  
  try 
  {
    var cancelQuit = Components.classes["@mozilla.org/supports-PRBool;1"]
      .createInstance(Components.interfaces.nsISupportsPRBool);
    os.notifyObservers(cancelQuit, "quit-application-requested", null);
    
    // Something aborted the quit process. 
    if (cancelQuit.data)
    {
      return false;
    }
  }
  catch (ex) 
  {
  }
  os.notifyObservers(null, "quit-application-granted", null);
  return true;
}

function goQuitApplication()
{
  const privs = 'UniversalPreferencesRead UniversalPreferencesWrite ' +
    'UniversalXPConnect';

  try
  {
    netscape.security.PrivilegeManager.enablePrivilege(privs);
  }
  catch(ex)
  {
    throw('goQuitApplication: privilege failure ' + ex);
  }

  if (!canQuitApplication())
  {
    return false;
  }

  const kAppStartup = '@mozilla.org/toolkit/app-startup;1';
  const kAppShell   = '@mozilla.org/appshell/appShellService;1';
  var   appService;
  var   forceQuit;

  if (kAppStartup in Components.classes)
  {
    appService = Components.classes[kAppStartup].
      getService(Components.interfaces.nsIAppStartup);
    forceQuit  = Components.interfaces.nsIAppStartup.eForceQuit;

  }
  else if (kAppShell in Components.classes)
  {
    appService = Components.classes[kAppShell].
      getService(Components.interfaces.nsIAppShellService);
    forceQuit = Components.interfaces.nsIAppShellService.eForceQuit;
  }
  else
  {
    throw 'goQuitApplication: no AppStartup/appShell';
  }

  var windowManager = Components.
    classes['@mozilla.org/appshell/window-mediator;1'].getService();

  var windowManagerInterface = windowManager.
    QueryInterface(Components.interfaces.nsIWindowMediator);

  var enumerator = windowManagerInterface.getEnumerator(null);

  while (enumerator.hasMoreElements())
  {
    var domWindow = enumerator.getNext();
    if (("tryToClose" in domWindow) && !domWindow.tryToClose())
    {
      return false;
    }
    domWindow.close();
  }

  try
  {
    appService.quit(forceQuit);
  }
  catch(ex)
  {
    throw('goQuitApplication: ' + ex);
  }

  return true;
}