/*

* Copyright (c) 2002 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: 

*		Observer for phone events. Used to deactive/active the side-key

*

*

*/

#include    <e32property.h>

#include	<PSVariables.h>

#include <ctsydomainpskeys.h>

#include	"AutolockAppUiPS.h"

#include	"AutoLockValueObserverPS.h"

// ================= MEMBER FUNCTIONS =======================

//

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

// CValueObserver::NewL()

// Constructs a new entry with given values.

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

//

CValueObserver* CValueObserver::NewL(CAutolockAppUi* aAppUi)

    {

    CValueObserver* self = new (ELeave) CValueObserver(aAppUi);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop();

    return self;

    }

//

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

// CValueObserver::CValueObserver()

// Destructor

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

//

CValueObserver::~CValueObserver()

    {

    Cancel();

    }

//

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

// CValueObserver::Start()

// Starts listening KUidCurrentCall event  

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

//

TInt CValueObserver::Start()

    {

    if (IsActive())

        return KErrInUse;

    iStatus = KRequestPending;

    iProperty.Attach(KPSUidCtsyCallInformation, KCTsyCallState); 

    iProperty.Subscribe(iStatus);

    SetActive();

    return KErrNone;

    }

//

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

// CValueObserver::Stop()

// Stops listening KUidCurrentCall event 

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

//

void CValueObserver::Stop()

	{

	Cancel();

	}

//

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

// CLockObserver::CLockObserver()

// C++ constructor

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

// 

CValueObserver::CValueObserver(CAutolockAppUi* aAppUi) : CActive(0), iAppUi(aAppUi)

	{                            

    }

//

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

// CLockObserver::ConstructL()

// Symbian OS default constructor

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

// 

void CValueObserver::ConstructL()

    {

    // Add this active object to the scheduler.

	CActiveScheduler::Add(this);	

    }

//

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

// CValueObserver::RunL()

// 

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

// 

void CValueObserver::RunL()

	{

    TInt callState;

    iProperty.Get( callState );

    if (callState == EPSCTsyCallStateNone && !iAppUi->IsForeground())

        {

		// app back to foreground

		iAppUi->BringAppToForegroundL();

		}

    else

		{

		Start();

		}

	}

//

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

// CValueObserver::DoCancel()

// Cancels event listening

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

// 

void CValueObserver::DoCancel()

    {

    iProperty.Cancel();

    }

// End of file