/*

* 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 customized popup-list control.

*

*/

#ifndef NPDPOPUPLIST_H

#define NPDPOPUPLIST_H

// INCLUDES

#include <e32base.h>

#include <aknPopup.h>

#include "NpdModelObserver.h"

// FORWARD DECLARATIONS

class CAknPopupList;

class CNotepadModel;

class CEikListBox;

// CLASS DECLARATION

/**

*  Customized popup list control for fetching a memo or template.

*  CNotepadPopupList is a customized popup list control for fetching a 

*  memo or template. It extends CAknPopupList to be able to manage 

*  dynamically changes of list items.

*  

*/

class CNotepadPopupList : public CAknPopupList,

    public MNotepadModelObserver,

    public MCoeViewObserver

    {

    public: // Constructor and destructor

        /**

        * Constructor.

        *

        * @param aListBox Pre-existing listbox-derived class.

        * @param aCbaResource Softkey pane to display while pop-up is active.

        * @param aType Type of layout.

        * @param aModel CNotepadModel object.

        * @return a new CNotepadPopupList object.

        */

        static CNotepadPopupList* NewL(

            CEikListBox* aListBox, 

            TInt aCbaResource, 

            AknPopupLayouts::TAknPopupLayouts aType,

            CNotepadModel& aModel );

        /**

        * Destructor.

        */

        ~CNotepadPopupList();

    public: // New function

        /**

        * Execute a popup list. 

        * If the database is changed during the execusion, this class receives

        * a notification via the MNotepadModelObserver interface and

        * the popup list is refreshed automatically.

        *

        * @return ETrue if the popup list was accepted. EFalse if the 

        * popup list was cancelled.

        */

        TBool EnhancedExecuteLD( TBool& aFinished );

    private: // Constructor 

        /**

        * C++ constructor.

        */

        CNotepadPopupList(

            CNotepadModel& aModel );

    private:  // Functions from base classes

        /**

        * From CAknPopupList.

        *

        * @param aAccept ETrue if the user accepted. 

        * EFalse if the user cancelled.

        */

        void AttemptExitL(TBool aAccept);

        /**

        * From MNotepadModelObserver.

        * Handles a event of CNotepadModel.

        *

        * @param aEvent Type of an event.

        * @param aParam Optional parameter of an event.

        */ 

        void HandleNotepadModelEventL(

            TEvent aEvent, 

            TInt aParam );

        /**

        * From MCoeViewObserver

        * 

        * @param aEvent view event type.

        */

        void HandleViewEventL(const TVwsViewEvent& aEvent);

    private: // Data

        enum TNotepadPopupListFlag

            {

            ENotepadObserveView = 0x01,

            ENotepadIsViewDeactivated = 0x02

            //ENotepadEverViewDeactivated = 0x04

            };

        CNotepadModel& iModel;  // not own

        TInt iSavedCount;

        TInt iSavedIndex;

        TBool* iFinished;

        TUint iFlags;

    };

#endif // NPDPOPUPLIST_H

// End of File