/*

* Copyright (c) 2010 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 MMCEFILESHARINGOBSERVER_H

#define MMCEFILESHARINGOBSERVER_H

// INCLUDES

#include <e32std.h>

// FORWARD DECLARATIONS

class CMceMediaStream;

class CMceMediaSink;

// CLASS DECLARATION

/**

*  An interface to be implemented by users of MCE if they wish to receive

*  data from CMceDataSink.

*

*  This observer is set using CMceManager::SetFileSharingObserver function.

*

*  @lib mceclient.lib

*/

class MMceFileSharingObserver

	{

	public: 

        /**

         * Will be invoked when sending file completes

         * 

         * @return KErrNone if successful otherwise any of the system wide error

         */

	    void virtual SendFileCompleted(TInt error) = 0;

	    /**

	     * Will be called when the receiving of the file completes. 

	     * @return KErrNone if successful otherwise any of the system wide error

	     */

	    void virtual ReceiveFileCompleted(TInt error) = 0;

	    /**

	     * Progress notificaiton on sending the file

	     * @return aBytesTransferred. holds the part of the file size in bytes which has been set successfully

	     * @return aTotalBytesOffile. Total size of the file being sent in bytes

	     */

	    void virtual SendFileProgressNotification(TUint32 aBytesTransferred, TUint32& aTotalBytesOffile) = 0;

	    /**

	     * Progress notificaiton on receiving file

	     * @return aReceivedBytes. holds the part of the file size in bytes which has been received successfully

         * @return aTotalBytesOffile. Total size of the file being sent in bytes 

	     */

	    void virtual ReceiveFileProgressNotification(TUint32 aReceivedBytes, TUint32 aTotalBytesOfFile) = 0;

	};

#endif