/*

* 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:  Declaration of Notepad Model Observer Interface.

*

*/

#ifndef NPDMODELOBSERVER_H

#define NPDMODELOBSERVER_H

// CLASS DECLARATION

/**

* Observer interface of CNotepadModel.

* MNotepadModelObserver is an interface to observe and handle the changes of

* CNotepadModel.

*  

* @lib NpdLib.lib

* @see CNotepadModel

*/

class MNotepadModelObserver

    {

    public:

        enum TEvent

            {

            EDatabaseChanged = 1,

            EAbortDeletion,

            ECompleteDeletion,

            EProgressDeletion,

            EStartItemArrayChange,

            EAbortItemArrayChange,

            ECompleteItemArrayChange,

            EProgressItemArrayChange

            };

        /**

        * Handles a event of CNotepadModel.

        *

        * @param aEvent Type of an event.

        * @param aParam Optional parameter of an event.

        */ 

        virtual void HandleNotepadModelEventL(

            TEvent aEvent, 

            TInt aParam = 0 )=0;

    };

#endif  // NPDMODELOBSERVER_H

// End of File