/*

* Copyright (c) 2007-2008 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:  Class header for MWsfEngineObserver

*

*/

#ifndef M_WSFENGINEOBSERVER_H

#define M_WSFENGINEOBSERVER_H

//  EXTERNAL INCLUDES

#include <e32def.h>

//  CLASS DEFINITION

/*

* Class acts as an interface for the CWsfEngine to be able to call back 

* its clients in case of different events.

*

* @since S60 5.0

*/

class MWsfEngineObserver

    {

    public:     // Abstract methods

        /**

        * Called when the WLAN scanning is finished and results are available

        * @since S60 5.0

        */

        virtual void WlanListChangedL() = 0;

        /**

        * Called when an error occured in the engine

        * @since S60 5.0

        * @param aError System wide error code

        */

        virtual void NotifyErrorL( TInt aError ) = 0;

        /**

        * Called when the WLAN scanning has been enabled

        * @since S60 5.0

        */

        virtual void ScanEnabledL() = 0;

        /**

        * Called when the WLAN scanning has been disabled

        * @since S60 5.0

        */

        virtual void ScanDisabledL() = 0;

        /**

        * Called when a WLAN connection has been established

        * @since S60 5.0

        */

        virtual void ConnectedL() = 0;

        /**

        * Called when the active WLAN connection has been terminated

        * @since S60 5.0

        */

        virtual void DisconnectedL() = 0;

        /**

        * Called when an error occured during the connecting process

        * @since S60 5.0

        * @param aError System wide error code

        */

        virtual void ConnectingFailedL( TInt aError ) = 0;

    };

#endif      //  M_WSFENGINEOBSERVER_H

// End of file