/*

* Copyright (c) 2005 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 MUSUICALLBACKOBSERVER_H

#define MUSUICALLBACKOBSERVER_H

#include "musuidefinitions.h"

/**

 * MUS application's note request interface.

 */

class MMusUiCallbackObserver

    {

public: // new functions

    /**

     * Process asynchronous event.

     *

     * @param aEventId Id of the triggered event

     */

    virtual void HandleAsyncEventL( TMusUiAsyncEvent aEventId ) = 0;

    /**

     * Error handler for HandleAsyncEventL.

     *

     * @param aError is error to be handled.

     * @return KErrNone means handled value. All other values will lead to

     *         a panic.

     */

    virtual TInt HandleAsyncError( TInt aError ) = 0;

    };

#endif // MUSUICALLBACKOBSERVER_H