/*

 * Copyright (c) 2002-2009 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: 

 *

 */

 #ifndef MCLFCHANGEDITEMOBSERVER_H

 #define MCLFCHANGEDITEMOBSERVER_H

 //  INCLUDES

 #include <CLFContentListing.h>

 #include <e32std.h>

 // FORWARD DECLARATIONS

 class MCLFChangedItemObserverExt;

 // CLASS DECLARATION

 /**

 *  Changed Item Observer interface.

 *  Implement this interface to get notifications of changed,

 *  new or deleted items.

 *

 *  @lib ContentListingFramework.lib

 *  @since S60 3.1

 */

 class MCLFChangedItemObserver

     {

     public: // New functions

         /**

         * Abstract method for handling item change event. This method is

         * called when, for example, some item is renamed.

         * @since S60 3.1

         * @param aItemIDArray List of Item IDs of changed items.

         */

         virtual void HandleItemChangeL(

                             const TArray<TCLFItemId>& aItemIDArray ) = 0;

         /**

         * Abstract method for handling errors. This method can be used to

         * handle errors in changed item event.

         * @since S60 3.1

         * @param aError System wide error code.

         */

         virtual void HandleError( TInt aError ) = 0;

     protected:

         /**

         * Destructor.

         */

         virtual ~MCLFChangedItemObserver() {}

     private: // Extension interface

         /**

         * This member is internal and not intended for use.

         */

         virtual MCLFChangedItemObserverExt* Extension() { return NULL; }

     };

 #endif      // MCLFCHANGEDITEMOBSERVER_H

 // End of File