/*

* Copyright (c) 2006 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:   contains a class for use by the GfxTransEffect adapter to communicate

*                with the transition server

*

*/

#ifndef R_ALFTFXSERVEROBSERVER

#define R_ALFTFXSERVEROBSERVER

#include <e32base.h>

class TControlPolicy;

/**

 *  interface to implement, to recieve callbacks from server.

 *

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( MTfxServerObserver )

	{

	public:

		/**

		 * Called when a new policy arrives

	     * @param aPolicy the new policy

	    */  

		virtual void PolicyUpdate( TControlPolicy* aPolicy ) = 0;

		/**

		 * Called when all policies clientside needs to be cleared.

		 */

		virtual void ClearAllPolicies() = 0;

		/**

		 * Called when a transition finishes for this handle

	     * @param aHandle handle of finished transition

	    */  

//		virtual void TransitionFinished(TInt aHandle) = 0;

	};

#endif // R_ALFTFXSERVEROBSERVER