/*

* Copyright (c) 2006-2009 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:  Scans MMC after phone reboot for file changes*

*/

#ifndef CMMCSCANNERAO_H

#define CMMCSCANNERAO_H

#include <e32base.h>	// For CActive, link against: euser.lib

#include <e32std.h>		// For RTimer, link against: euser.lib

#include "mdeharvestersession.h"

#include "mmcfilelist.h"

// FORWARD DECLARATION

class MMonitorPluginObserver;

class CMmcScannerAO : public CTimer 

	{

public:

	// Cancel and destroy

	~CMmcScannerAO();

	// Two-phased constructor.

	static CMmcScannerAO* NewL( TUint32 aMediaId, CMdEHarvesterSession* aMdEClient,

			MMonitorPluginObserver* aObserver, CHarvesterPluginFactory* aHarvesterPluginFactory,

			CActive::TPriority aPriority, TBool aAlreadyWaited );

public:

private:

	// C++ constructor

	CMmcScannerAO( TUint32 aMediaId, CMdEHarvesterSession* aMdEClient, 

			MMonitorPluginObserver* aObserver, CHarvesterPluginFactory* aHarvesterPluginFactory,

			CActive::TPriority aPriority );

	// Second-phase constructor

	void ConstructL( TBool aAlreadyWaited );

private:

	enum TCMmcScannerAOState

		{

		EUninitialized, // Uninitialized

		EReadFiles,

		EProcessFiles,

		EHarvestFiles,

		ERemoveNPFiles,

		EDone,

		EError // Error condition

		};

private:

	// From CActive

	// Handle completion

	void RunL();

	// Override to handle leaves from RunL(). Default implementation causes

	// the active scheduler to panic.

	TInt RunError( TInt aError );

	void HandleReharvestL();

	void SetState( TCMmcScannerAOState aState );		

private:

	TInt iState; // State of the active object

	TUint32 iMediaId;

	// Not owned

	CMdEHarvesterSession* iMdEClient;

	RFs iFs;

	TBuf<2> iDrive;

	CMmcFileList* iMmcFileList;

	// Not owned

	CHarvesterPluginFactory* iHarvesterPluginFactory;

	RPointerArray<CPlaceholderData> iEntryArray;

	RPointerArray<CPlaceholderData> iHarvestEntryArray;

	// Not owned

	MMonitorPluginObserver* iObserver;

	};

#endif // CMMCSCANNERAO_H