pjs/widget/public/nsIEventListener.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsIEventListener_h__
#define nsIEventListener_h__
#include "nsGUIEvent.h"
/**
* Event listener interface.
* Alternative to a callback for recieving events.
*/
class nsIEventListener {
public:
/**
* Processes all events.
* If a mouse listener is registered this method will not process mouse events.
* @param anEvent the event to process. See nsGUIEvent.h for event types.
*/
virtual nsEventStatus ProcessEvent(const nsGUIEvent & anEvent) = 0;
};
#endif // nsIEventListener_h__