/*

* Copyright (c) 2008-2009 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:    Observer for navigable list

*

*/

#ifndef __M_GLXNAVIGABLELISTOBSERVER_H__

#define __M_GLXNAVIGABLELISTOBSERVER_H__

#include <e32base.h>

#include "glxlistdefs.h"

#include "mglxitemlistobserver.h"

/**

 * Observer for navigable list

 *

 * @author Aki Vanhatalo

 *

 * @internal reviewed 17/07/2007 by Kimmo Hoikka

 *

 * @ingroup mlm_media_list_manager_design

 */

class MGlxNavigableListObserver : public MGlxItemListObserver

    {

public:

    /**

     * Nofication of focus having been changed

     *

     * @param aType backward/forward/unknown

     * @param aNewIndex New focus index

     * @param aOldIndex Old focus index

     */

    virtual void HandleFocusChanged( NGlxListDefs::TFocusChangeType aType, 

        TInt aNewIndex, TInt aOldIndex ) = 0;

    /**

     * Notification that an item has been selected/deselected

     *

     * @param aIndex Index of the item that has been selected/deselected

     * @param aSelected Boolean to indicate selection/deselection

     */

    virtual void HandleItemSelected( TInt aIndex, TBool aSelected ) = 0;

    };

#endif // __M_GLXNAVIGABLELISTOBSERVER_H__