/*

* 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:  ESMR async command base class implementation

*

*/

// INCLUDE FILES

#include "emailtrace.h"

#include "cesmricalviewerasynccommand.h"

#include <calsession.h>

/// Unnamed namespace for local definitions

namespace {

/**

 * ASync callback method.

 * @param aParam Poiter to async command object 

 */

TInt ASyncCallback( TAny* aParam )

	{

	CESMRIcalViewerAsyncCommand* asyncCommand = 

			static_cast<CESMRIcalViewerAsyncCommand*>( aParam );

    TRAPD( err, asyncCommand->ExecuteAsyncCommandL() );

    return err;

	}

}  // namespace

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

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

// CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand

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

//

CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand(

			TESMRIcalViewerOperationType aType,

			CCalSession& aCalSession )

:	CESMRIcalViewerCommandBase( aType, aCalSession )

	{

    FUNC_LOG;

	}

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

// CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand

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

//

CESMRIcalViewerAsyncCommand::~CESMRIcalViewerAsyncCommand()

	{

    FUNC_LOG;

	delete iAsyncInvoker;

	}

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

// CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand

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

//

void CESMRIcalViewerAsyncCommand::ExecuteCommandL(

		CFSMailMessage& aMessage,

		MESMRIcalViewerObserver& aObserver )

	{

    FUNC_LOG;

	if ( !iAsyncInvoker )

		{

		TCallBack callback( ASyncCallback, this );

		iAsyncInvoker = new (ELeave) CAsyncCallBack(

				callback, EPriorityNormal );

		}

	SetMessage( &aMessage );

	SetObserver( &aObserver );

	// Invoking async command

	iAsyncInvoker->CallBack();

	}

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

// CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand

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

//

void CESMRIcalViewerAsyncCommand::CancelCommand()

	{

    FUNC_LOG;

	if ( iAsyncInvoker )

		{

		CancelAsyncCommand();

		}

	delete iAsyncInvoker; iAsyncInvoker = NULL; 

	}

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

// CESMRIcalViewerAsyncCommand::CESMRIcalViewerAsyncCommand

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

//

void CESMRIcalViewerAsyncCommand::BaseConstructL()

	{

    FUNC_LOG;

	CESMRIcalViewerCommandBase::BaseConstructL();

	}

// EOF