/*

* Copyright (c) 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: 

*

*/

#ifndef MCALREMOTEATTACHMENTOPERATIONOBSERVER_H

#define MCALREMOTEATTACHMENTOPERATIONOBSERVER_H

#include <e32def.h>

class MCalRemoteAttachmentOperation;

class RFile;

/**

 * MCalRemoteAttachmentOperationObserver is used for indicating

 * attachment download operation progress and completion.

 */

class MCalRemoteAttachmentOperationObserver

    {

public: // Destruction

	/**

	 * Virtual desttructor

	 */

	virtual ~MCalRemoteAttachmentOperationObserver() {}

public: // Interface	

	/**

	 * Indicates about operation progress.

	 * @param aOperation Pointer to operation that was completed.

	 * @param aPercentageCompleted how many percent is done.

	 */

	virtual void Progress(

	         MCalRemoteAttachmentOperation* aOperation,

			 TInt aPercentageCompleted ) = 0;

	/**

	 * Called when operation is completed. Command is allowed to close file handle

	 * after calling this method. Observer needs to duplicate file handle if 

	 * needed afterwards.

	 * 

	 * @param aOperation Pointer to operation that was completed.

	 */ 

	virtual void OperationCompleted(

	        MCalRemoteAttachmentOperation* aOperation,

            RFile& aAttachment ) = 0;

	/**

	 * Called when operation error occured.

	 * @param aOperation Pointer to operation.

	 * @param aErrorCode Defines operation error code.

	 */ 

	virtual void OperationError(

	        MCalRemoteAttachmentOperation* aOperation,

            TInt aErrorCode ) = 0;	

	};

#endif // MCALREMOTEATTACHMENTOPERATIONOBSERVER_H

// EOF