/* -*- 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 1.1 (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/NPL/
 *
 * 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.org code.
 *
 * The Initial Developer of the Original Code is Netscape
 * Communications Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */


#ifndef nsIMouseListener_h__
#define nsIMouseListener_h__

#include "nsEvent.h"
#include "nsISupports.h"

/**
 *
 * Mouse up/down/move event listener
 *
 */

// {c83f6b81-d7ce-11d2-8360-c4c894c4917c}
#define NS_IMOUSELISTENER_IID \
{ 0xc83f6b81, 0xd7ce, 0x11d2, { 0x83, 0x60, 0xc4, 0xc8, 0x94, 0xc4, 0x91, 0x7c } }

class nsIMouseListener : public nsISupports {
public:
    NS_DEFINE_STATIC_IID_ACCESSOR(NS_IMOUSELISTENER_IID)

    /**
     * Processes a mouse pressed event
     * @param aMouseEvent See nsGUIEvent.h 
     * @return whether the event was consumed or ignored. See nsEventStatus
     */
    virtual nsEventStatus MousePressed(const nsGUIEvent & aMouseEvent) = 0;

    /**
     * Processes a mouse release event
     * @param aMouseEvent See nsGUIEvent.h 
     * @return whether the event was consumed or ignored. See nsEventStatus
     */
    virtual nsEventStatus MouseReleased(const nsGUIEvent & aMouseEvent) = 0;

    /**
     * Processes a mouse clicked event
     * @param aMouseEvent See nsGUIEvent.h 
     * @return whether the event was consumed or ignored. See nsEventStatus
     *
     */
    virtual nsEventStatus MouseClicked(const nsGUIEvent & aMouseEvent) = 0;

    /**
     * Processes a mouse moved event
     * @param aMouseEvent See nsGUIEvent.h 
     * @return whether the event was consumed or ignored. See nsEventStatus
     */
    virtual nsEventStatus MouseMoved(const nsGUIEvent & aMouseEvent) = 0;

};

#endif // nsIMouseListener_h__