/*

* Copyright (c) 2009 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: Main View Observer Manager Interface

*

*/

#ifndef MCAMAINVIEWOBSERVERMANAGERPC_H

#define MCAMAINVIEWOBSERVERMANAGERPC_H

class MCAMainViewObserverPC;

class MCASyncObserverPC;

class MCAMainViewObserverManagerPC

    {

    public:

        //events or callbacks to UI..

        /**

        * Adds observer, handles errors by leaving.

        * Adds observer, observer must point to valid

        * object. If aObserver is NULL, leaves with

        * @param aObserver The observer to add.

        */

        virtual void AddObserverL( MCAMainViewObserverPC* aObserver ) = 0;

        /**

         * RemoveObserver, remove from call back

         */

        virtual void RemoveObserver( MCAMainViewObserverPC* aObserver ) = 0;

        /**

         * Adds observer, observer must point to valid

         * @param aObserver The observer to add.

         */

        virtual void AddObserver( MCASyncObserverPC* aObserver ) = 0;

        /**

         * RemoveObserver, remove from call back

         */

        virtual void RemoveObserver( ) = 0;

        /**

         * ~MCAMainViewObserverManagerPC

         */

        virtual ~MCAMainViewObserverManagerPC() {};

    };

#endif //MCAMAINVIEWOBSERVERMANAGERPC_H