/*

* Copyright (c) 2010 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:  Listens to given P&S key and notifies

*                observer whenever the value changes.

*/

#include "sysapganpropertylistener.h" 

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

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

// C++ constructor

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

//

CSysApGanPropertyListener::CSysApGanPropertyListener( 

    RProperty& aProperty,

    MSysApGanPropertyObserver& aObserver ) :

    CActive( CActive::EPriorityStandard ),

    iObserver( aObserver ),

    iProperty( aProperty )

    {

    CActiveScheduler::Add( this );

    }

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

// Static constructor.

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

//

CSysApGanPropertyListener* CSysApGanPropertyListener::NewL(

    RProperty& aProperty,

    MSysApGanPropertyObserver& aObserver )

    {

    CSysApGanPropertyListener* self = 

        new ( ELeave ) CSysApGanPropertyListener( aProperty, aObserver ); 

    return self;

    }

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

// Destructor.

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

//

CSysApGanPropertyListener::~CSysApGanPropertyListener()

    {

    Cancel(); // Cancel any request, if outstanding

    }

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

// Subscribe for property value changes.

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

//

void CSysApGanPropertyListener::Subscribe()

    {

    // Cancel any outstanding request

    Cancel();

    iProperty.Subscribe( iStatus );

    SetActive();

    }

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

// Property value changed.

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

//

void CSysApGanPropertyListener::RunL()

    {

    // Notify the observer.

    iObserver.PropertyEvent( *this, iStatus.Int() );

    }

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

// Subscription cancelled.

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

//

void CSysApGanPropertyListener::DoCancel()

    {

    iProperty.Cancel();

    }

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

// Error in RunL.

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

//

TInt CSysApGanPropertyListener::RunError( TInt /*aError*/ )

    {

    // ignore error

    return KErrNone;

    }