/*

* 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:  Connection mode observer.

*

*/

#ifndef __MIMPSCONNUICONNECTIONMODEOBSERVERNG_H

#define __MIMPSCONNUICONNECTIONMODEOBSERVERNG_H

#include <E32Std.h>

#include <impspresenceconnectionuiconstsng.h>

//FORWARD DECLARATION

class CIMPSConnUiConnectionModeNotifier;

/**

 * Observer interface to get notifcations from

 * connection mode events.

 *

 * @since 2.1

 */

NONSHARABLE_CLASS( MIMPSConnUiConnectionModeObserver )

    {

public: //notify methods

    /**

     * Notifies from connection mode event.

     *

     * If event handling causes a leave, leave is

     * reported back to HandleConnectionModeEventNotifyError()

     * callback.

     *

     * @since 2.1

     * @param aNotifier The connection mode notifier where this

     * event is coming from.

     * @param aEvent The connection mode event.

     */

    virtual void HandleConnectionModeEventL( CIMPSConnUiConnectionModeNotifier* aNotifier,

                                             TIMPSConnectionModeEvent aEvent ) = 0;

    /**

     * Called when connection mode event listening or event

     * handling fails.

     *

     * Here is reported both errors from handling the

     * actual connection mode event and also asynchronously

     * the errors coming from starting (requesting) the

     * connection mode notify.

     *

     * When reporting the error, the notifier is

     * automaticly stopped. However, the observer may

     * restart the notifier during the notify callback

     * if desired so.

     *

     * @since 2.1

     * @param aNotifier The presence notifier where this

     * error is coming from.

     * @param aError is the error code.

     */

    virtual void HandleConnectionModeEventNotifyError(

        CIMPSConnUiConnectionModeNotifier* aNotifier,

        TInt aError ) = 0;

    };

#endif //__MIMPSCONNUICONNECTIONMODEOBSERVERNG_H