1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: CCH UI call state callback observer

    15 *

    16 */

    17 

    18 #ifndef M_CCHUICALLSTATEOBSERVER_H

    19 #define M_CCHUICALLSTATEOBSERVER_H

    20 

    21 

    22 /**

    23  *  MCchUiCallStateObserver

    24  *

    25  *  @since S60 v5.0

    26  */

    27 class MCchUiCallStateObserver

    28     {

    29 

    30 public:

    31 

    32     /**

    33      * Callback for notifying of a call state change

    34      *

    35      * @since S60 v5.0

    36      * @param  aCallState state from CTSYDomainPSKeys.h

    37      */

    38     virtual void CallStateChanged( TInt aCallState ) = 0;

    39     

    40     };

    41 

    42 

    43 #endif // M_CCHUICALLSTATEOBSERVER_H