/*

* Copyright (c) 2006-2007 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:  Processor 

*

*/

#include <e32base.h>

#include "tmshutdownobserver.h"

#include "thumbnailmanagerconstants.h"

// ---------------------------------------------------------------------------

// CTMShutdownObserver::NewL()

// ---------------------------------------------------------------------------

//

CTMShutdownObserver* CTMShutdownObserver::NewL( MTMShutdownObserver& aObserver,

                                                const TUid& aKeyCategory,

                                                const TInt aPropertyKey,

                                                TBool aDefineKey)

    { 

    CTMShutdownObserver* self = new( ELeave )CTMShutdownObserver( aObserver, 

                                                                  aKeyCategory,

                                                                  aPropertyKey,

                                                                  aDefineKey);

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------------------------

// CTMShutdownObserver::CTMShutdownObserver()

// ---------------------------------------------------------------------------

//

CTMShutdownObserver::CTMShutdownObserver( MTMShutdownObserver& aObserver,

                                          const TUid& aKeyCategory,

                                          const TInt aPropertyKey,

                                          TBool aDefineKey)

    : CActive( CActive::EPriorityStandard ), iObserver( aObserver ),

      iKeyCategory( aKeyCategory ), iPropertyKey(aPropertyKey), iDefineKey( aDefineKey )

    {   

    CActiveScheduler::Add( this );

    }

// ---------------------------------------------------------------------------

// CTMShutdownObserver::ConstructL()

// ---------------------------------------------------------------------------

//

void CTMShutdownObserver::ConstructL()

    { 

    // define P&S property types

    if (iDefineKey)

        {

        RProperty::Define(iKeyCategory,iPropertyKey,

                          RProperty::EInt,KAllowAllPolicy,KPowerMgmtPolicy);

        }

    // attach to the property

    TInt err = iProperty.Attach(iKeyCategory,iPropertyKey,EOwnerThread);

    User::LeaveIfError(err);

    // wait for the previously attached property to be updated

    iProperty.Subscribe(iStatus);

    SetActive();

    }

// ---------------------------------------------------------------------------

// CTMShutdownObserver::~CTMShutdownObserver()

// ---------------------------------------------------------------------------

//

CTMShutdownObserver::~CTMShutdownObserver()

    {

    Cancel();

    iProperty.Close();

    }

// ---------------------------------------------------------------------------

// CTMShutdownObserver::RunL()

// ---------------------------------------------------------------------------

//

void CTMShutdownObserver::RunL()

    {

    // resubscribe before processing new value to prevent missing updates

    iProperty.Subscribe(iStatus);

    SetActive();

    // retrieve the value

    TInt value = 0;

    iProperty.Get(value);

    // observer callback

    if (value)

        {

        iObserver.ShutdownNotification();

        }

    }

// ---------------------------------------------------------------------------

// CTMShutdownObserver::DoCancel()

// ---------------------------------------------------------------------------

//

void CTMShutdownObserver::DoCancel()

    {

    iProperty.Cancel();

    }

// End of file