/*

* 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 MCLFPROCESSOBSERVER_H

#define MCLFPROCESSOBSERVER_H

//  INCLUDES

#include <e32std.h>

// DATA TYPES

/**

* Content Listing Framework process events

*/

enum TCLFProcessEvent

    {

    /// CLF server starts update process

    ECLFUpdateStart = 0x0,

    /// CLF server update process is end

    ECLFUpdateStop = 0x1

    };

// FORWARD DECLARATIONS

class MCLFProcessObserverExt;

// CLASS DECLARATION

/**

*  Process observer interface for Content Listing Framework.

*  Implement this interface to get notified of process events. These process

*  events are generated when update process of CLF server is started

*  and finished.

*

*  @lib ContentListingFramework.lib

*  @since S60 3.1

*/

class MCLFProcessObserver

    {

    public: // New functions

        /**

        * Abstract method to handle CLF process event. This method is called

        * when process events are generated.

        * @since S60 3.1

        * @param aProcessEvent The process event that was generated.

        */

        virtual void HandleCLFProcessEventL( TCLFProcessEvent aProcessEvent ) = 0;

    protected:

        /**

        * Destructor.

        */

        virtual ~MCLFProcessObserver() {}

    private: // Extension interface

        /**

        * This member is internal and not intended for use.

        */

        virtual MCLFProcessObserverExt* Extension() { return NULL; }

    };

#endif      // MCLFProcessObserver_H

// End of File