/*

* Copyright (c) 2006 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 ECOM for screensaver plugin changes.

*

*/

#include "mpslnscreensaverecomobserver.h"

#include "PslnEcomListener.h"

#include "PslnModel.h"

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

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

// C++ constructor can NOT contain any code, that might leave.

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

//

CPslnEcomListener::CPslnEcomListener( CPslnModel& aModel, 

    MPslnScreenSaverECOMObserver& aObserver ) : 

    CActive( CActive::EPriorityStandard ), iModel( &aModel ), 

    iObserver( &aObserver )

    {

    CActiveScheduler::Add( this );

    }

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

// Symbian 2nd phase constructor can leave.

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

//

void CPslnEcomListener::ConstructL()

    {

    iSession = REComSession::OpenL();

    // Start ECOM monitoring

    StartECOMMonitoringL();

    }

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

// Two-phased constructor.

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

//

EXPORT_C CPslnEcomListener* CPslnEcomListener::NewL( 

    CPslnModel& aModel, MPslnScreenSaverECOMObserver& aObserver )

    {

    CPslnEcomListener* self = 

        new ( ELeave ) CPslnEcomListener( aModel, aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Destructor.

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

//

CPslnEcomListener::~CPslnEcomListener()

    {

    Cancel();

    iSession.Close();

    }

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

// Called when active object is ready.

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

//

void CPslnEcomListener::RunL()

    {

    iModel->LoadScreensaverArrayL();

    iObserver->HandlePluginListChangeL();

    StartECOMMonitoringL();

    }

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

// Called when active object is cancelled.

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

//

void CPslnEcomListener::DoCancel()

    {

    iSession.CancelNotifyOnChange( iStatus );

    }

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

// Called when active object is cancelled.

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

//

void CPslnEcomListener::StartECOMMonitoringL()

    {

    if ( !IsActive() )

        {

        iSession.NotifyOnChange( iStatus );

        SetActive();

        }

    else

        {

        User::Leave( KErrAlreadyExists );

        }

    }

// End of file