/*

* Copyright (c) 2008 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:  This class implements MMcsGetListCreatorInterface. It builds tree 

*   output list for getlist operation 

*

*

*/

#ifndef CMCSMMCOBSERVER_H

#define CMCSMMCOBSERVER_H

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

#include <f32file.h>

/**

 * Interface for handling Mmc inserrtion / removal.

 *

 * @since S60 v5.0

 */

class MMcsMmcObserver 

	{

public:

	virtual void HandleMmcEventL(TInt aEvent) = 0;

    enum TInstOp

    	{

    	EMmcInsert = 0x00000001,

    	EMmcRemove = 0x00000002,

		};

	};

/**

 *  Mmc Observer Interface.

 *  @lib mcsmenu.lib

 *  @since S60 v5.0

 */

NONSHARABLE_CLASS(CMcsMmcObserver) : public CActive

	{

public:

	// Cancel and destroy

	~CMcsMmcObserver();

	// Two-phased constructor.

	static CMcsMmcObserver* NewL(MMcsMmcObserver& aCallback);

	// Two-phased constructor.

	static CMcsMmcObserver* NewLC(MMcsMmcObserver& aCallback);

private:

	// C++ constructor

	CMcsMmcObserver(MMcsMmcObserver& aCallback);

	// Second-phase constructor

	void ConstructL();

private:

	// From CActive

	// Handle completion

	void RunL();

	// How to cancel me

	void DoCancel();

	TInt RunError(TInt aError);

	// Count acvtive drives

	TInt DriveCount(TDriveList& aDriveList);

private:

	TDriveList iDriveList;

	TInt iDriveCount;

	RFs iFs;

	MMcsMmcObserver& iCallback;

	};

#endif // CMCSMMCOBSERVER_H