/*

* Copyright (c) 2005-2005 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:  

*

*/

#include <aipspropertyobserver.h>

#include "aissaverstatusobserver.h"

#include <screensaverinternalpskeys.h> // this include needs to be last

#include "aifwpanic.h"

#include "debug.h"

CAiSSaverStatusObserver::CAiSSaverStatusObserver()

    {

    }

CAiSSaverStatusObserver::~CAiSSaverStatusObserver()

    {

    }

CAiSSaverStatusObserver* CAiSSaverStatusObserver::NewL( MAiStateManager* aStateManager )

    {

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

    CleanupStack::PushL(self);

    self->ConstructL( aStateManager );

    CleanupStack::Pop(self);

    return self;

    }

void CAiSSaverStatusObserver::ConstructL( MAiStateManager* aStateManager )

    {

    BaseConstructL( TCallBack( HandleScreenSaverStateChanged, this ),

                    KPSUidScreenSaver,

                    KScreenSaverOn,

		            aStateManager );

    }

TAiStateChanges CAiSSaverStatusObserver::Status()

    {

    TInt value = 0;

    Tint err = iObserver->Get( value );

    if( ( value == 0 ) ||

        ( err != KErrNone ) )

    	{

    	return ESMAIScreensaverInactive;

    	}

    else

    	{

    	return ESMAIScreensaverActive;

    	} 

    }

TInt CAiSSaverStatusObserver::HandleScreenSaverStateChanged( TAny* aPtr )

    {

    CAiSSaverStatusObserver* self =

                static_cast<CAiSSaverStatusObserver*>( aPtr );

    __ASSERT_DEBUG( self, 

                    AiFwPanic::Panic( AiFwPanic::EAiFwPanic_NullPointerReference ) );

    TInt value = 0;

    TInt err = self->iObserver->Get( value );

    if ( ( value == 0 ) ||

         ( err != KErrNone ) )

		{

        // screensaver off

        __PRINTS("XAI: Screen saver = OFF");

        self->iStateManager->ReportStateChange( ESMAIScreensaverInactive );

		}

    else

		{

        // screensaver on

        __PRINTS("XAI: Screen saver = ON");

        self->iStateManager->ReportStateChange( ESMAIScreensaverActive );

		}

    return KErrNone;

    }