// Copyright (c) 2003-2009 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 __MHTTPCONTENTSOURCE_H__

#define __MHTTPCONTENTSOURCE_H__

#include <e32base.h>

class MHttpDataSender;

/**

 * THttpContentSourceOp is an operator to notify the HTTP Service

 * when content is available. 

 *  

 * @publishedAll

 * @prototype

 */

class THttpContentSourceOp

    {

    friend class CHttpDataSender;

public:

    IMPORT_C THttpContentSourceOp();

    IMPORT_C void Notify(const TDesC8& aData, TBool aLast = EFalse);

    private:

        THttpContentSourceOp(MHttpDataSender* aSender);

    MHttpDataSender* iDataSender;

    };

/**

 * The implementation of MHttpContentSink can supply the request body data.

 *  

 * @publishedAll

 * @prototype

 */

class MHttpContentSource

	{

	public:	

	/**

	 * Obtain a part of request body data from the source. The data should be guranteed to survive till 

	 * another call to OnData or a call to CHttpClientTransaction::OnCompletion/OnError

	 * 

	 * @param aData Data source operator

	 */

	virtual void OnData(THttpContentSourceOp& aData) =0;

	private:

    // Reserved for future use.

    inline virtual void Reserved();

    inline virtual void Reserved2();	    

	};

inline void MHttpContentSource::Reserved()

    {

    }

inline void MHttpContentSource::Reserved2()

    {

    }

#endif // __MHTTPCONTENTSOURCE_H__