1 /*

     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Class for making Feed Engine backup and restore aware.

    15 *

    16 */

    17 

    18 

    19 #ifndef BACKRESTOREHANDLER_H

    20 #define BACKRESTOREHANDLER_H

    21 

    22 //  INCLUDES

    23 #include <e32property.h>  

    24 #include <e32base.h>

    25 

    26 // FORWARD DECLARATIONS

    27 class CFeedsServer;

    28 

    29 // CLASS DECLARATION

    30 class CBackRestoreHandler : public CActive

    31 {

    32 	public:	// Constructors and destructor

    33 	     	/**

    34       	* Two-phased constructor.

    35       	*/

    36 			 	static CBackRestoreHandler* NewL(CFeedsServer*);

    37 			 	static CBackRestoreHandler* NewLC(CFeedsServer*);

    38 			 	/**

    39         * Destructor.

    40         */ 	

    41 				~CBackRestoreHandler();

    42 	private:	//	Constructor

    43 	

    44 		 	 	/**

    45       	* C++ default constructor.

    46        	*/ 	

    47 				CBackRestoreHandler();

    48         /**

    49         * By default Symbian 2nd phase constructor is private.

    50         *

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

    52         *

    53         */

    54         void ConstructL(CFeedsServer*);

    55 		

    56 	public:	//Functions from CActive Class

    57 	      /**

    58         * Handles an active object's request completion event.

    59         *

    60         * @since ?

    61         * @return void.

    62         */

    63 				void RunL();

    64 

    65 	      /**

    66         * Called by CActiveScheduler when RunL() Method leaves.

    67         *

    68         * @since ?

    69         * @return void.

    70         */

    71 				void RunError();

    72 				

    73 				/**

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

    75         *

    76         * @since ?

    77         * @return void.

    78         */

    79 				void DoCancel();

    80 			

    81 	public:	//Functions from CActive Class		

    82 				/**

    83         * This method subscribe to receive event when OS level

    84         * variable KUidBackupRestoreKey is changed by Backup or Restore

    85         *	process

    86         *

    87         * @since 3.2

    88         * @return void.

    89         */

    90 				void StartListening();

    91 

    92 				/**

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

    94         *

    95         * @since 3.2

    96         * @return void.

    97         */

    98 				void StopListening();

    99 	

   100 	private:

   101 				RProperty 					iProperty;

   102 				TBool 							iIsListening;

   103 				TBool 							iIsBkpRestoreInProgress;

   104 				CFeedsServer*				iFeedServer;

   105 	};

   106 	

   107 	

   108 #endif			//BACKRESTOREHANDLER_H

   109 

   110 // End of File