/*

* Copyright (c) 2005 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 MMCEMEDIAOBSERVER_H

#define MMCEMEDIAOBSERVER_H

#include <e32std.h>  

class CMceComSession;

class TMceMccComEvent;

/**

 * @lib 

 */

class MMceMediaSessionObserver

    {

    public://new

        /**

        * Callback function to indicate that media has been updated

        * based on UpdateL request

        * @param aSession, media session

        */

        virtual void Updated( CMceComSession& aSession ) = 0;

        /**

        * Callback function to indicate that network resources have 

        * been reserved based on ReserveL request

        * @param aSession, media session

        */

        virtual void Reserved( CMceComSession& aSession ) = 0;

        /**

        * Callback function to indicate that event has been received

        * @param aEvent, received event

        */

        virtual void EventReceived( TMceMccComEvent& aEvent ) = 0;

        /**

        * Callback function to indicate that media session was stopped

        * @param aSession, media session

        */

        virtual void SessionClosed( CMceComSession& aSession ) = 0;

        /**

        * Callback function to indicate about new media session due fork

        * @param aSession, new session, onwership is been transfered

        */

        virtual void SessionCreatedL ( CMceComSession* aSession ) = 0;

        /**

        * Callback function to indicate about error

        * @param aEvent, received event

        */

        virtual void MediaError ( TMceMccComEvent& aEvent ) = 0;

    };

class MMceMediaGeneralObserver

    {

    public:

        /**

        * Callback function to indicate about error

        * @since Series 60 3.0

        * @param aError, error occured   

        * @return void

        */

        virtual void MediaError ( TInt aError ) = 0;

    };

#endif