// Copyright (c) 2007-2009 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 "pspropertyobserver.h"

CPsPropertyObserver* CPsPropertyObserver::NewL(const TUid& aGroup, TInt aKey, MPsPropertyObserver& aObserver)

	{

	CPsPropertyObserver* self = new(ELeave) CPsPropertyObserver(aKey,aObserver);

	CleanupStack::PushL(self);

	self->ConstructL(aGroup);

	CleanupStack::Pop(self);

	return self;

	}

CPsPropertyObserver::CPsPropertyObserver(TInt aKey, MPsPropertyObserver& aObserver)

	:CActive(EPriorityNormal),

	iKey(aKey),

	iObserver(aObserver)

	{

	}

void CPsPropertyObserver::ConstructL(const TUid& aGroup)

	{

	User::LeaveIfError(iProperty.Attach(aGroup,iKey));

	CActiveScheduler::Add(this);

	// initial subscription and process current property value

	Start();

	}

CPsPropertyObserver::~CPsPropertyObserver()

	{

	Cancel();

	iProperty.Close();

	}

void CPsPropertyObserver::DoCancel()

	{

	iProperty.Cancel();

	}

void CPsPropertyObserver::RunL()

	{

	iProperty.Get(iValue);	

	iObserver.PsPropertyChanged(iKey,iValue);

	// resubscribe

	Start();

	}

void CPsPropertyObserver::Start()

	{

	if (IsActive())

		{

		Cancel();

		}

	iProperty.Subscribe(iStatus);

	SetActive();		

	}