/*

* Copyright (c) 2002-2009 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 FILES

#include <e32std.h>

#include "CCLFEventHandler.h"

#include "MCLFEventHandlerObserver.h"

#include "MGDebugPrint.h"

// MACROS

// Macro for calling a member function through function pointer

#define CLF_CALL_MEMBER_FN( aObject, aPtrToMember ) \

                                           (( aObject ).*( aPtrToMember ))

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

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

// CCLFEventHandler::CCLFEventHandler

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

//

CCLFEventHandler::CCLFEventHandler( CCLFServerProxy& aEventHandler,

                                           MCLFEventHandlerObserver& aObserver )

    : CActive( CActive::EPriorityStandard ),

      iEventHandler( aEventHandler ),

      iObserver( aObserver ),

      iOperationFunction( &CCLFServerProxy::GetUpdateEndEvent ),

      iCancelFunction( &CCLFServerProxy::CancelGetEvent ),

      iObserverFunction( &MCLFEventHandlerObserver::HandleUpdateEndEventL )

    {

    CActiveScheduler::Add( this );

    }

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

// CCLFEventHandler::NewL

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

//

CCLFEventHandler* CCLFEventHandler::NewL( CCLFServerProxy& aEventHandler,

                                        MCLFEventHandlerObserver& aObserver )

    {

    return new( ELeave ) CCLFEventHandler( aEventHandler, aObserver );

    }

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

// CCLFEventHandler::~CCLFEventHandler

// Destructor

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

//

CCLFEventHandler::~CCLFEventHandler()

    {

    Cancel();

    }

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

// CCLFEventHandler::DoCancel

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

//

void CCLFEventHandler::DoCancel()

    {

    CLF_CALL_MEMBER_FN( iEventHandler, iCancelFunction )();

    }

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

// CCLFEventHandler::RunL

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

//

void CCLFEventHandler::RunL()

    {

    // observer function can leave

    CLF_CALL_MEMBER_FN( iObserver, iObserverFunction )( iStatus.Int() );

    DoStart();

    }

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

// CCLFDbItemProvider::RunError

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

//

TInt CCLFEventHandler::RunError( const TInt aError )

    {

    MG_DEBUG2( re1, "[CLF]\t CCLFEventHandler::RunError: %d", aError ); 

    return aError;

    }

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

// CCLFEventHandler::ObserverUpdateEndEvent

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

//

void CCLFEventHandler::ObserverUpdateEndEvent()

    {

    Cancel();

    iOperationFunction = &CCLFServerProxy::GetUpdateEndEvent;

    iCancelFunction = &CCLFServerProxy::CancelGetEvent;

    iObserverFunction = &MCLFEventHandlerObserver::HandleUpdateEndEventL;

    DoStart();

    }

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

// CCLFEventHandler::ObserverUpdateStartEvent

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

//

void CCLFEventHandler::ObserverUpdateStartEvent()

    {

    Cancel();

    iOperationFunction = &CCLFServerProxy::GetUpdateStartEvent;

    iCancelFunction = &CCLFServerProxy::CancelGetUpdateStartEvent;

    iObserverFunction = &MCLFEventHandlerObserver::HandleUpdateStartEventL;

    DoStart();

    }

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

// CCLFEventHandler::DoStart

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

//

void CCLFEventHandler::DoStart()

    {

    CLF_CALL_MEMBER_FN( iEventHandler, iOperationFunction )( iStatus );

    SetActive();

    }

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

// CCLFEventHandler::GetChangedItemsL

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

//

void CCLFEventHandler::GetChangedItemsL( RArray<TUint>& aItemArray )

    {

    User::LeaveIfError( iEventHandler.FetchItemListData( aItemArray ) );

    }

//  End of File