/*

 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of "Eclipse Public License v1.0"

 * which accompanies this distribution, and is available

 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

 *

 * Initial Contributors:

 * Nokia Corporation - initial contribution.

 * 

 * Contributors:

 * 

 * Description:

 *   

 *     

 */

#ifndef MTONESELECTIONWATCHER_H

#define MTONESELECTIONWATCHER_H

#include <e32def.h>

#include <e32cmn.h> 

/*

 * this class is used to watch MDE system change, inherited by ToneFetcherEnginePrivate

 */

class MToneSelectionWatcher

    {

    public:

        // handle mde session error event

        virtual void HandleMdeSessionError( TInt aError ) = 0;

        // handle mde session open event

        virtual void HandleMdeSessionOpened() = 0;

        // handle query error event        

        virtual void HandleQueryError( TInt aError ) = 0;

        // handle query complete event

        virtual void HandleQueryComplete( RPointerArray<TDesC>& ) = 0;

        // handle object changed event

        virtual void HandleObjectChanged() = 0;

    };

#endif /* MTONESELECTIONWATCHER_H */