/*

* Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* which accompanies this distribution, and is available

*

* 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