mirror of
https://github.com/rn10950/RetroZilla.git
synced 2024-07-02 23:40:42 +02:00
92 lines
3.4 KiB
C++
92 lines
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** 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 Mozilla Communicator client code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Simon Fraser <sfraser@netscape.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of 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 ***** */
|
|
|
|
#ifndef nsDocLoadObserver_h_
|
|
#define nsDocLoadObserver_h_
|
|
|
|
#include "nsIObserver.h"
|
|
|
|
#include <MacTypes.h>
|
|
#include "nsVoidArray.h"
|
|
|
|
/*----------------------------------------------------------------------------
|
|
nsDocLoadObserver
|
|
The nsDocLoadObserver is a singleton object that registers for
|
|
'EndDocumentLoad' events from the Mozilla browser. It maintains a set of
|
|
'echo requesters'. When the observer receives an event notification, it
|
|
forwards the event to all echo requesters. If the forward fails (most
|
|
likely because the application is no longer in memory), the echo requester
|
|
is automatically removed from the set.
|
|
|
|
Usage:
|
|
nsDocLoadObserver& observer = nsDocLoadObserver::Instance();
|
|
observer.Register();
|
|
observer.AddEchoRequester('App1');
|
|
observer.AddEchoRequester('App2');
|
|
----------------------------------------------------------------------------*/
|
|
class nsDocLoadObserver : public nsIObserver
|
|
{
|
|
public:
|
|
|
|
nsDocLoadObserver();
|
|
virtual ~nsDocLoadObserver();
|
|
|
|
NS_DECL_ISUPPORTS
|
|
NS_DECL_NSIOBSERVER
|
|
|
|
// add an application to be notified when an 'EndDocumentLoad' has occurred
|
|
void AddEchoRequester(OSType appSignature);
|
|
void RemoveEchoRequester(OSType appSignature);
|
|
|
|
protected:
|
|
|
|
// register the observer with the nsIObserverService. After this object
|
|
// has been successfully registered, this method will simply return
|
|
// immediately.
|
|
void Register();
|
|
void Unregister();
|
|
|
|
private:
|
|
// 'true' if this handler has been successfully registered with the nsIObserverService
|
|
PRBool mRegistered;
|
|
|
|
nsVoidArray mEchoRequesters;
|
|
};
|
|
|
|
#endif // nsDocLoadObserver_h_
|