1 /*

     2 * Copyright (c) 2002 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:  Observer API for presence watcher events

    15 *

    16 */

    17 

    18 

    19 #ifndef MCAWATCHEROBSERVER_H

    20 #define MCAWATCHEROBSERVER_H

    21 

    22 // INCLUDES

    23 #include <e32std.h>

    24 

    25 // FORWARD DECLARATIONS

    26 class MCAStoredContact;

    27 

    28 // CLASS DECLARATION

    29 

    30 /**

    31  *  Interface for presence watcher observers.

    32  *

    33  *  @lib CAEngine.lib

    34  *  @since 1.2

    35  */

    36 class MCAWatcherObserver

    37     {

    38     public:

    39 

    40         /**

    41          * Gets called when watched friend's presence status changes. This event

    42          * is restricted to only network originated events, so if user refreshes

    43          * the friends-list by himself, then this event will not raise.

    44          * @param aContact Contact that was changed

    45          */

    46         virtual void HandleWatcherEvent( const MCAStoredContact* aContact ) = 0;

    47 

    48     protected:

    49 

    50         /**

    51          * Destrutor.

    52          */

    53         virtual ~MCAWatcherObserver() {};

    54     };

    55 

    56 #endif      // MCAWATCHEROBSERVER_H

    57 

    58 // End of File