/*

* Copyright (c) 2003 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: A connection manager object uses this callback function to indicate

* that a change in the status of the bearer has occurred.

*

*/

#ifndef __IMPSBEAREROBSERVERCALLBACK_H__

#define __IMPSBEAREROBSERVERCALLBACK_H__

#include <e32base.h>

//This must be kept as low as possible

const TInt KMaxNumberOfSubscribers         = 3;

//Possible events

enum TImpsBearerEvent

    {

    EImpsBearerActive = 0,

    EImpsBearerSuspended,

    EImpsBearerLost

    };

// CLASS DECLARATION

class MImpsBearerObserverCallback

    {

    public:

        /**

        * A connection manager object uses this callback function to indicate

        * that a change in the status of the bearer has occurred. It is important

        * to note that a call to the notification handler (HandleBearerEventL())

        * takes place inside the RunL() method of a Connection Manager, so the

        * listening object MUST return the control to the Manager AS SOON AS

        * POSSIBLE in order not to clog the scheduler.

        *

        * @param TImpsBearerEvent The event that took place

        * @param TBool In case of EImpsBearerLost, indicates whether connection

        *              was authoritatively closed (i.e. by the user)

        */

        virtual void HandleBearerEventL( const TImpsBearerEvent aBearerEvent, TBool aIsAuthClose ) = 0;

    };

#endif    // __IMPSBEAREROBSERVERCALLBACK_H__

// End of File