/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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 CHTTPCACHEDATASUPPLIER_H

#define CHTTPCACHEDATASUPPLIER_H

//  INCLUDES

// CONSTANTS

// MACROS

// DATA TYPES

// FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// CLASS DECLARATION

/**

 *  Data supplier to supply response body if the url is loaded

 *  from cache

 *

 *  @lib 

 *  @since 3.1

 */

class CHttpCacheDataSupplier : public CBase, public MHTTPDataSupplier

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CHttpCacheDataSupplier* NewL( HBufC8* aBody );

        /**

        * Destructor.

        */

        virtual ~CHttpCacheDataSupplier();      

    public: // from MHTTPDataSupplier

        /**

        * From MHTTPDataSupplier. Free the data chunk that was requested.

        * @since 2.0

        */

        virtual void ReleaseData() { delete m_body; m_body = NULL;}

        /**

        * From MHTTPDataSupplier. It is not possible to know

        * the data size, so return KErrNotFound

        * @since 2.0

        */

        virtual TInt OverallDataSize () { return KErrNotFound; }

        /**

        * From MHTTPDataSupplier. Get the next data part of the response body

        * @since 2.0

        */

        virtual TBool GetNextDataPart( TPtrC8& aDataPart );

        /**

        * From MHTTPDataSupplier. Not Supported

        * @since 2.0

        */

        virtual TInt Reset() { return KErrNotFound; }

    private:

        /**

        * C++ default constructor.

        */

        CHttpCacheDataSupplier( HBufC8* aBody );

    private:    // Data

        //owned by datasupplier and is destroyed 

        //when the releasedata function is called

        HBufC8* m_body;        

    };

#endif      // CHTTPCACHEDATASUPPLIER_H

// End of File