/*

* Copyright (c) 2005-2006 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:  Light status observer

*

*/

#ifndef C_AILIGHTSTATUSOBSERVER_H

#define C_AILIGHTSTATUSOBSERVER_H

#include <e32base.h>

#include <e32property.h>

#include <hwrmlight.h>

#include "aidevicestatusobserver.h"

class MAiStateManager;

/**

 * @ingroup group_aifw

 * 

 *  Publish and subscribe key observer

 * 

 *  @lib aifw

 *  @since S60 3.2

 */

NONSHARABLE_CLASS( CAiLightStatusObserver ) : public CBase,

                                              public MHWRMLightObserver,

                                              public MAiDeviceStatusObserver

    {

public:

// Construction

    static CAiLightStatusObserver* NewL( MAiStateManager* aStateManager );

    ~CAiLightStatusObserver();

// functions from base class MAiDeviceStatusObserver

    TAiStateChanges Status();

private:

// Construction

    CAiLightStatusObserver();

    void ConstructL( MAiStateManager* aStateManager );

// from MHWRMLightObserver

    void LightStatusChanged( TInt aTarget, CHWRMLight::TLightStatus aStatus );

protected: // Data

    /**

     * Light client.

     * Own.

     */

    CHWRMLight* iLight;

    /**

     * State manager.

     * Not own.

     */

    MAiStateManager* iStateManager;

    };

#endif // C_AILIGHTSTATUSOBSERVER_H

// End of File.