/*

* Copyright (c) 2006 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:  CCP supplementary services (ss) observer.

*

*/

#ifndef MCCPSSOBSERVER_H

#define MCCPSSOBSERVER_H

#include <e32std.h>

/**

* TODO list: 

* Call waiting service status, should be available via phone settings UI.

* DnD status

*/

/**

 * Supplementary services observer.

 *

 * @since S60 v3.2

 */

class MCCPSsObserver

    {

public:

    /** Barring related event.*/

    enum TCCPSsBarringEvent

        {

        /** Incoming call is barred. (DoCoMo) */

    /** CLI (Call Line Information) related event. */

    enum TCCPSsCLIEvent

        {

        /** Temporary CLIR suppression was unsuccessful */

        /** Temporary CLIR activation was unsuccessful*/

        };

    /** Call forward related events that are not call related to an existing call. */

    enum TCCPSsCallForwardEvent

        {

        /** Incoming call is forwarded */

        /** Outgoing call was forwarded because of user own settings. */

        ECCPSsOutCallForwToC,

        /** Forward unconditional mode active */

        };

    /** Closed user group (Cug) 08052007 added */

    enum TCCPSsCugEvent

        {

        ECCPSsShowIncCallGroupIndex,

        ECCPSsRejectedCause

        };

public:

    /**

    * Supplementary service call barring event occurred.

    * @param aBarringEvent Event that occurred.

    * @return none

    * @since S60 v3.2

    */

    /**

    * Supplementary service call line identification event occurred.

    * @param aCallLineEvent Event that occurred.

    * @return none

    * @since S60 v3.2

    */

    /**

    * Supplementary service related call forward event occurred. 

    * @param aCallForwardEvent Event that occurred.

    * @return none

    * @since S60 v3.2

    */

    /**

    * Supplementary service related active closed user group indications.

    * @param aCugEvent Event that occurred.

    * @return none

    * @since S60 v3.2

    */

    /**

    * Notifies active ALS line. CS plugin must notify this every time line changes 

    * @param aLine Used ALS line.

    * @return none

    * @since S60 v3.2

    */

    };

#endif // MCCPSSOBSERVER_H