gecko-dev/widget/public/nsIEventListener.h

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/* -*- 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
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* 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
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*
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*
* The Original Code is mozilla.org 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):
*
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* 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
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#ifndef nsIEventListener_h__
#define nsIEventListener_h__
#include "nsISupports.h"
class nsGUIEvent;
/**
* Event listener interface.
* Alternative to a callback for receiving events.
*/
// {c83f6b80-d7ce-11d2-8360-c4c894c4917c}
#define NS_IEVENTLISTENER_IID \
{ 0xc83f6b80, 0xd7ce, 0x11d2, { 0x83, 0x60, 0xc4, 0xc8, 0x94, 0xc4, 0x91, 0x7c } }
class nsIEventListener : public nsISupports {
public:
NS_DECLARE_STATIC_IID_ACCESSOR(NS_IEVENTLISTENER_IID)
/**
* Processes all events.
* @param anEvent the event to process. See nsGUIEvent.h for event types.
*/
virtual nsEventStatus ProcessEvent(const nsGUIEvent & anEvent) = 0;
};
NS_DEFINE_STATIC_IID_ACCESSOR(nsIEventListener, NS_IEVENTLISTENER_IID)
#endif // nsIEventListener_h__