/*

* 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 the License "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:  Class for making Feed Engine backup and restore aware.

*

*/

#ifndef BACKRESTOREHANDLER_H

#define BACKRESTOREHANDLER_H

//  INCLUDES

#include <e32property.h>  

#include <e32base.h>

// FORWARD DECLARATIONS

class CFeedsServer;

// CLASS DECLARATION

class CBackRestoreHandler : public CActive

{

	public:	// Constructors and destructor

	     	/**

      	* Two-phased constructor.

      	*/

			 	static CBackRestoreHandler* NewL(CFeedsServer*);

			 	static CBackRestoreHandler* NewLC(CFeedsServer*);

			 	/**

        * Destructor.

        */ 	

				~CBackRestoreHandler();

	private:	//	Constructor

		 	 	/**

      	* C++ default constructor.

       	*/ 	

				CBackRestoreHandler();

        /**

        * By default Symbian 2nd phase constructor is private.

        *

        * @param pointer to CFeedsServer class,This pointer will be used to make server sleep and to wake up server

        *

        */

        void ConstructL(CFeedsServer*);

	public:	//Functions from CActive Class

	      /**

        * Handles an active object's request completion event.

        *

        * @since ?

        * @return void.

        */

				void RunL();

	      /**

        * Called by CActiveScheduler when RunL() Method leaves.

        *

        * @since ?

        * @return void.

        */

				void RunError();

				/**

        * Called by CActiveScheduler when Cancel() Method is called.

        *

        * @since ?

        * @return void.

        */

				void DoCancel();

	public:	//Functions from CActive Class		

				/**

        * This method subscribe to receive event when OS level

        * variable KUidBackupRestoreKey is changed by Backup or Restore

        *	process

        *

        * @since 3.2

        * @return void.

        */

				void StartListening();

				/**

        * This method unsubscribe to the events from publish and subscribe server

        *

        * @since 3.2

        * @return void.

        */

				void StopListening();

	private:

				RProperty 					iProperty;

				TBool 							iIsListening;

				TBool 							iIsBkpRestoreInProgress;

				CFeedsServer*				iFeedServer;

	};

#endif			//BACKRESTOREHANDLER_H

// End of File