/*

* Copyright (c) 2002 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: 

*       MPsetCallWaitingObserver abstract call waiting observer class.

*

*

*/

#ifndef     MPSETCALLWAITINGOBS_H

#define     MPSETCALLWAITINGOBS_H

// INCLUDES

//  CLASS DEFINITIONS 

class   MPsetCallWaitingObserver

    {

    public:

        /**

        * Handles notes when requesting Call Waiting status.

        *

        * @param aStatus Query result.

        * @param aBsc is List of active groups.

        */

        virtual void HandleCallWaitingGetStatusL( 

            const MPsetCallWaiting::TGetCallWaitingStatus aStatus, 

            TUint8 aBsc[KPSetNumberOfBsc] ) = 0;

        /**

        * Handles notes when Call Waiting has been changed.

        *

        * @param aSetting Changed setting.

        * @param aResult Result of the action.

        */

        virtual void HandleCallWaitingChangedL( 

            const MPsetCallWaiting::TSetCallWaiting aSetting, 

            const TInt aResult ) = 0;

        /**

        * Handles requesting notes.

        *

        * @param aStarted Is there a request going on.

        * @param aInterrupted Request needs to be immediately cancelled.

        */

        virtual void HandleCWRequestingL( TBool aOngoing, 

            TBool aInterrupted ) = 0; 

        /**

        * Handles errors in call waiting requests.

        *

        * @param aReason Reason for the error.

        */

        virtual void HandleCWErrorL( TInt aReason ) = 0;

        /**

        * Sets pointer so that message is passed succesfully

        * from requester to observer.

        *

        * @param aEngineContact Source of events to observer.

        */

        virtual void SetEngineContact( MPsetCallWaiting& aEngineContact ) = 0;

    };

#endif // MPSETCALLWAITINGOBS_H

// end of file