/*

* Copyright (c) 2007 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 FsControlBar class

*

*/

#ifndef M_FSCONTROLBAROBSERVER_H

#define M_FSCONTROLBAROBSERVER_H

/**

 *  Control Bar observer class.

 *

 *  @code

 *

 *  @endcode

 *

 *  @lib fs_generic.lib

 */

NONSHARABLE_CLASS( MFsControlBarObserver )

    {

public:

    /** events sent to observers */

    enum TFsControlBarEvent

        {

        EEventSelectionChanged = 0,

        EEventFocusGained,

        EEventFocusLost,

        EEventFocusLostAtBottom,

        EEventFocusLostAtSide,

        // <cmail> Touch

        EEventTouchFocused,

        // </cmail>

        EEventButtonPressed,

        EEventButton,

        // <cmail> Touch

        EEventButtonReleased,

        EEventButtonTouched

        // </cmail>

        };

public:

    /**

     * Invoked when event occurs.

     *

     * @param aEvent event type.

     * @param aData additional data. For EButton - id of pressed button.

     */

    virtual void HandleControlBarEvent(

        TFsControlBarEvent aEvent,

        TInt aData ) = 0;

    };

#endif // M_FSCONTROLBAROBSERVER_H