/*

* Copyright (c) 2006 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:  Memory state popup implementation

*

*/

#ifndef __CMEMORYSTATEPOPUPIMPL_H__

#define __CMEMORYSTATEPOPUPIMPL_H__

// SYSTEM INCLUDES

#include <e32base.h>

#include <AknWaitDialog.h>

#include <ConeResLoader.h>

#include <msenguihandler.h>

//  FORWARD DECLARATIONS

class CAknPopupList;

class CAknSingleHeadingPopupMenuStyleListBox;

class CMemScanEventReceiver;

class CMSPUtil;

//  CLASS DEFINITION

NONSHARABLE_CLASS(CMemStatePopupImpl) :	

                        public CActive, 

						public MMsengUIHandler,

						public MProgressDialogCallback

	{

	public:

		//   Destructor

		virtual ~CMemStatePopupImpl( );

	private:

		//   Second phase

		void ConstructL( );

		//   C++ constructors

		CMemStatePopupImpl( TDriveNumber aDrive, const TDesC& aTitle );

		CMemStatePopupImpl( );

	public:

		/**

		* Launches the memory scan popup

		* @param aDrive The drive to be scanned

		* @param aTitle Title of the popup

		*/

		static void RunLD( TDriveNumber aDrive, const TDesC& aTitle );

		/**

		* Get an instance of CMSPUtil class, containing the unit text array

		* @param aUtil Reference to a CMSPUtil pointer,

		*		 updated to point to the instance created

		*/

		static void GetUtilL( CMSPUtil*& aUtil );

	public:

		// From MMsengUIHandler

		void StartL( );

		void QuitL( TInt /*aReason*/ );

		void ErrorL( TInt aError );

		// From MProgressDialogCallback

		virtual void DialogDismissedL( TInt /*aButtonId*/ );

	private:

	    // From CActive

        void RunL();

        void DoCancel();

		/**

		* Starts observing drive dismounts.

		*/

        void StartObserver( );

		/**

		* Construct popup and ready it for use.

		*/

		void ConstructPopupL( );

		/**

		* Shows wait dialog and start scanning.

		*/

		void ExecuteL( );

		/**

		* Refresh the data shown in listbox.

		*/

		void RefreshL( );

		/**

		* Set the results to zero.

		*/

		void NullifyResults( );

		/**

		* Opens the resource and reads unit array from it.

		*/

		void OpenResourceAndReadArrayL( );

	private:

		// Not implemented

		CMemStatePopupImpl( const CMemStatePopupImpl& );

		CMemStatePopupImpl& operator=( CMemStatePopupImpl& );

	private:

        /**

        * Container class used to prevent all pointer events 

        * passing from listbox to popup-list.

        */

        NONSHARABLE_CLASS(CMemStateListBox) : public CAknSingleHeadingPopupMenuStyleListBox

            {

        	public:

        		//   Destructor

        		virtual ~CMemStateListBox( ) {};

            };

	private:

		CDesCArray* iGroupNames;

		CArrayFix< TInt64 >* iScanResults;

		CDesCArray* iListModel;

        CMemStateListBox* iListBox;

		CAknWaitDialog* iWaitDialog;

		TBool iFinished;

		TDriveNumber iDrive;

		CAknPopupList* iPopup;

		TDesC* iTitle;

		CCoeEnv& iCoeEnv;

		RConeResourceLoader iResLoader;

		CMSPUtil* iUtil;

		TBool iOwnsUtil;

        CMemScanEventReceiver* iEventReceiver;

	};

#endif      //  __CMEMORYSTATEPOPUPIMPL_H__

// End of File