/*

* 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:  A thin CAknPopupList extension.

*

*/

#ifndef CFLDPOPUPLIST_H

#define CFLDPOPUPLIST_H

// INTERNAL INCLUDES

#include "MFLDFileListBoxObserver.h" // For TFileListSoftKeyState

// EXTERNAL INCLUDES

#include <aknPopup.h>

#include <coemain.h> // For MCoeForegroundObserver

// FORWARD DECLARATIONS

class MFLDFileObserver;

class CFLDFileListModel;

// CLASS DECLARATION

/**

*  A thin CAknPopupList extension.

*  Prevents closing the pop-up if the pop-up observer so wishes.

*

*  @lib filelist.lib

*  @since 2.1

*/

NONSHARABLE_CLASS( CFLDPopupList )

 : public CAknPopupList, public MCoeForegroundObserver, public MCoeFocusObserver

    {

    public: // New methods

		/**

		* Two-phased constructor.

		* @param aListbox A parameter to CAknPopupList.

		* @param aCbaResource A parameter to CAknPopupList.

        * @param aFileObserver File observer.

        * @param aListBoxObserver Listbox observer, can be NULL.

        * @param aModel Filelist Model.

		* @param aType A parameter to CAknPopupList.

		*/

		static CFLDPopupList* NewL(

			CEikListBox* aListBox,

			TInt aCbaResource,

			MFLDFileObserver& aFileObserver,

            MFLDFileListBoxObserver* aListBoxObserver,

			CFLDFileListModel& aModel,

			AknPopupLayouts::TAknPopupLayouts aType = AknPopupLayouts::EMenuWindow );

		void ConstructL(CEikListBox* aListBox, TInt aCbaResource, AknPopupLayouts::TAknPopupLayouts aType );

		/**

        * Destructor.

        */	

		virtual ~CFLDPopupList();

		/**

		* Returns Popuplist RWindow handle

		*/

		RWindow& PopupListWindow() const;

		/**

		* Populates icon array and updates ListBox

		*/

		void PopulateIconArrayL();

		/**

		* Cancels audio/video preview

		*/

		void CancelPreview();

		/**

		* Handles pointer events of popups.

		*/

		void HandlePointerEventL(const TPointerEvent& aPointerEvent);

		/**

		 * Returns FileListBoxObserver.

		 */

		MFLDFileListBoxObserver* GetFileListBoxObserver();

    private:	// From CAknPopupList

        void AttemptExitL( TBool aAccept );

        void HandleResourceChange(TInt aType);

        void HandleListBoxEventL(CEikListBox* aListBox, TListBoxEvent aEventType);

	private:	// From MCoeForegroundObserver

        void HandleGainingForeground();

        void HandleLosingForeground();        

	private:	// From MCoeFocusObserver

        void HandleChangeInFocus();

    	void HandleDestructionOfFocusedItem();

	private:

		/**

		* C++ constructor.

        * @param aFileObserver File observer.

        * @param aListBoxObserver Listbox observer, can be NULL.

        * @param aModel Filelist Model.

		*/

		CFLDPopupList(

			MFLDFileObserver& aFileObserver,

            MFLDFileListBoxObserver* aListBoxObserver,

			CFLDFileListModel& aModel );

	private: // New methods

    private:    // Data

        /// File observer

        MFLDFileObserver& iFileObserver;

        /// Ref: Listbox observer

        MFLDFileListBoxObserver* iListBoxObserver;

		/// FileList Model

		CFLDFileListModel& iModel;

		/// Current softkeystate

		MFLDFileListBoxObserver::TFileListSoftKeyState iSoftKeyState;

		TFileName iCurrentFileName;

		// Have the checks in AttemptExitL been done already

		TBool iExitChecksDone;

		TPoint iPoint;

    };

#endif      // CFLDPOPUPLIST_H

// End of File