/*

* Copyright (c) 2005-2007 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:  Modifier key status tracker for Active Idle WS Plug-in.

*

*/

#ifndef T_AIWSPLUGIN_MODIFIERKEYTRACKER_H

#define T_AIWSPLUGIN_MODIFIERKEYTRACKER_H

#include <e32def.h>

class TRawEvent;

namespace AiWsPlugin {

/**

 *  @ingroup group_wsplugin

 *

 * Numeric key forwarding handler for Active Idle WS Plug-in. 

 *

 * Monitors and forwards numeric key presses that should be handled by Phone 

 * application.

 *

 *  @since S60 3.2

 */

class TModifierKeyTracker

    {

public:

    TModifierKeyTracker();

    /**

     * Returns true if modifier key states were updated.

     */

    TBool Update(const TRawEvent& aRawEvent);

    /**

     * Returns the current modifier key status as bits, see enum TEventModifier.

     */

    TUint Status() const { return iModifiers; }

private: // data

    TUint iModifiers;

    };

} // namespace AiWsPlugin

#endif // T_AIWSPLUGIN_MODIFIERKEYTRACKER_H