/*

* 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:  Observer class for Publish and Subscribe handling

*

*/

#ifndef MMMMACALLSTATEOBSERVER_H

#define MMMMACALLSTATEOBSERVER_H

/**

 *  Abstract interface to the PS key watcher.

 *

 *  @lib 

 */

NONSHARABLE_CLASS(MMMACallStateObserver)

    {

public:

    /**

    * Handle Call state event

    *

    * @since 

    * @param aUid The UID that identifies the property category

    * @param aKey The property sub-key

    */

    virtual void HandleCallStateEventL(TUid aUid, TInt aKey) = 0;

    };

#endif // M_MMMAPSKEYOBSERVER_H