/*

* 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 "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: CProgressNotifier is used to notify about 

* the current state of the request

*

*/

#ifndef __PROGRESSNOTIFIER_H__

#define __PROGRESSNOTIFIER_H__

// INCLUDES

#include <in_sock.h>

// FORWARD DECLARATIONS

class MProgressNotifyHandler;

/**

* Class for receiving notifications from interfaces.

* Notifications are handled by the class, that implements

* MProgressNotifyHandler interface.

*/

class CProgressNotifier : public CActive

{

public: // new methods

    /**

    * Two-phased constructor.

    */

    static CProgressNotifier* NewL(RConnection& aConnection, MProgressNotifyHandler& aHandler);

    /**

    * Two-phased constructor.

    */

    static CProgressNotifier* NewLC(RConnection& aConnection, MProgressNotifyHandler& aHandler);

    /**

    * Destroy the object and release all memory objects

    */

    ~CProgressNotifier();

    /**

    * Start waiting for the progress notifications.

    */

    void StartNotify();

    /**

    * Reads the current stage of the interface when 

    * the progress notification is received, and issues

    * a new progress notification request.

    */

    void NotifyL();

protected: // from CActive

    /**

    * Called when operation complete

    */

    void RunL();

    /**

    * Cancel any outstanding operation

    */

    void DoCancel();

private: // New methods

    /**

    * Perform the first phase of two phase construction 

    */

    CProgressNotifier(RConnection& aConnection, MProgressNotifyHandler& aHandler);

    /**

    * Perform the second phase construction of two phase construction

    */

    void ConstructL();

private:

    // Member variables

    RConnection&                iConnection;

    MProgressNotifyHandler&     iHandler;

    TNifProgressBuf             iProgressBuf;

};

#endif // __PROGRESSNOTIFIER_H__