/*
* 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: 
*    Observes topic monitor.
*
*
*/


#ifndef CBS_UI_TOPIC_MONITOR_OBSERVER_H
#define CBS_UI_TOPIC_MONITOR_OBSERVER_H

//  INCLUDES
#include <CbsCommon.h>



// CLASS DECLARATION

/**
* Observes topic monitor.
*  
*/
class MCbsUiTopicMonitorObserver
    {
    public:

        /**
        * Topic list or topic messages are changed.
        *
        * @param aEvent reason for event
        * @param aTopicNumber Topic number, which caused the event
        */
        virtual void TopicListChangedL(
            TCbsTopicListEvent aEvent, TCbsTopicNumber aTopicNumber ) = 0;

    };

#endif      // CBS_UI_TOPIC_MONITOR_OBSERVER_H
            
// End of File