/*

* 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 for AI2

*

*/

#include <aipspropertyobserver.h>

#include "ailightstatusobserver.h"

#include "aistatemanager.h"

#include "debug.h"

CAiLightStatusObserver::CAiLightStatusObserver()

    {

    }

CAiLightStatusObserver::~CAiLightStatusObserver()

    {

    delete iLight;

    }

CAiLightStatusObserver* CAiLightStatusObserver::NewL( MAiStateManager* aStateManager )

    {

    CAiLightStatusObserver* self = new (ELeave) CAiLightStatusObserver();

    CleanupStack::PushL(self);

    self->ConstructL( aStateManager );

    CleanupStack::Pop(self);

    return self;

    }

void CAiLightStatusObserver::ConstructL( MAiStateManager* aStateManager )

    {

    iStateManager = aStateManager;

    iLight = CHWRMLight::NewL( this );

    }

TAiStateChanges CAiLightStatusObserver::Status()

    {

    // In future handle other screen lights here also..

    CHWRMLight::TLightStatus status = iLight->LightStatus( CHWRMLight::EPrimaryDisplay );

    if( status == CHWRMLight::ELightOn )

        {

        return ESMAIBacklightOn;

        }

    else if( status == CHWRMLight::ELightOff )

        {

        return ESMAIBacklightOff;

        }

    return ESMAIBacklightOn;

    }

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

    {

    if( aTarget == CHWRMLight::EPrimaryDisplay ||

        aTarget == CHWRMLight::EPrimaryDisplayAndKeyboard )

        {

        if( aStatus == CHWRMLight::ELightOn )

            {

            __PRINTS("XAI: Light = ON");

            iStateManager->ReportStateChange( ESMAIBacklightOn );

            }

        else if( aStatus == CHWRMLight::ELightOff )

            {

            __PRINTS("XAI: Light = OFF");

            iStateManager->ReportStateChange( ESMAIBacklightOff );

            }

        }

    }