/*

* Copyright (c) 2008-2009 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:  Interface class.

*

*/

#ifndef MPROPERTYWATCHER_H

#define MPROPERTYWATCHER_H

// SYSTEM INCLUDE

#include <e32base.h>

// CLASS DECLARATION 

class MKeyObserver

	{

public:

	/**

	 * Factory method NotifyKeyAndStatusL

	 * @param aKeyValue - observed key's value.

	 * @param aPropertyCategory observed key's category.

	 * @param aKey The P&S key to be watched.

	 */

	virtual void NotifyKeyL( 

					const TInt aKeyValue,

					const TUid aPropertyCategory,

					const TUint aKey ) = 0;

		};

// CLASS DECLARATION

class MKeyAndStatusObserver

	{

public:

    /**

     * Factory method NotifyKeyAndStatusL

     * @param aKeyValue - observed key's value.

     * @param aStatus - reference to iStatus.

     * @param aPropertyCategory observed key's category.

     * @param aKey he P&S key to be watched.

     */

	virtual void NotifyKeyAndStatusL( 

				const TInt aKeyValue,

				TRequestStatus& aStatus,

				const TUid aPropertyCategory,

				const TUint aKey ) = 0;

	};

#endif // MPROPERTYWATCHER_H