/*

* Copyright (c) 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:  Location Centre Notification Active Object.

*

*/

// SYSTEM INCLUDES

// USER INCLUDES

#include "lcnotificationao.h"

#include "lcnotification.h"

#include "lcclientsession.h"

// CONSTANT DEFINTIONS

// ----- Member funtions for CLcNotificationAO ---------------------------------

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

// CLcNotificationAO::CLcNotificationAO

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

//

CLcNotificationAO::CLcNotificationAO( MLcNotification&    aObserver,

                                      RLcClientSession&   aClientSession )

    :CActive( EPriorityStandard ),

    iObserver( aObserver ),

    iClientSession( aClientSession )

    {

    // C++ Default constructor. No allocations or functions which can Leave

    // should be called from here.

    CActiveScheduler::Add( this );

    }

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

// CLcNotificationAO::~CLcNotificationAO

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

//

CLcNotificationAO::~CLcNotificationAO()

    {

    // C++ Destructor. Free all resources associated with this class.

    Cancel();

    }

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

// CLcNotificationAO* CLcNotificationAO::NewL

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

//

CLcNotificationAO* CLcNotificationAO::NewL( MLcNotification&    aObserver,

                                            RLcClientSession&   aClientSession )

    {

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

                                                               aClientSession );

    return self;           

    }

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

// void CLcNotificationAO::IssueRequest

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

//

void CLcNotificationAO::IssueRequest()

    {

    // The request is issued only if there is no outstanding request. If there

    // any request outstanding then don't do anything. Server the previous

    // request.

    if ( !IsActive())

        {

        // Location Centre Server is the ASP. Send a notification request to

        // the same.

        iClientSession.SendReceive( ERegisterObserver, iStatus );

        SetActive();

        }

    }

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

// void CLcNotificationAO::CancelRequest

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

//

void CLcNotificationAO::CancelRequest()

    {

    Cancel();

    }

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

// void CLcNotificationAO::RunL

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

//

void CLcNotificationAO::RunL()

    {

    // Communicate the Success/Failure of the Notification request to the

    // Location Centre Client.

    iObserver.LcStatusChangedL( iStatus.Int());

    // Issue the Observer request unless the server has been terminated.

    if ( iStatus.Int() != KErrServerTerminated )

        {

        IssueRequest();

        }

    }

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

// void CLcNotificationAO::DeCancel

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

//

void CLcNotificationAO::DoCancel()

    {

    iClientSession.SendReceive( ERemoveObserver );

    }                     

// End of File