/*

* Copyright (c) 2010 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:  Mmc monitor

*

*/

#ifndef CMMCMONITOR_H

#define CMMCMONITOR_H

//  INCLUDES 

#include <e32base.h>

#include <e32property.h>

#include <driveinfo.h>

#include <common.h>

#include "fastfindfileserverpluginclient.h"

// FORWARD DECLARATIONS

class CFilePlugin;

/**

 * Mmc monitoring

 * Implements CActive

 */

class CMMCMonitor : public CActive

    {

    public:

        /**

         * NewL

         * @param CFilePlugin& aFilePlugin File plugin handle

         * @param RFs* aFsSession File server handle

         * @return CMMCMonitor Monitor item

         */

        static CMMCMonitor* NewL( CFilePlugin& aFilePlugin, RFs* aFsSession );

        /**

         * Destructor

         */

        virtual ~CMMCMonitor();

        /**

         * StartMonitoring

         * Start monitoring mmc

         * This function calls CMMCMonitor::RunL() to initiate the MMC status 

         * checking.

         * @return TBool success status

         */

        TBool StartMonitoring();

        /**

         * MmcStatus

         * Utility function that checks the DriveInfo properties of drive

         * aDriveNumber to decide if aDriveNumber is an MMC drive or not.

         * @param aDriveNumber, the drive of the Mmc.

         * @return ETrue indicates that aDriveNumber is a MMC drive.

         */

        TBool MmcStatus( TInt aDriveNumber );

    protected: // CActive

        /**

         * From CActive.

         */

        void DoCancel();

        /**

         * From CActive.

         * 

         */

        void RunL();

        /**

         * From CActive.

         * @param aError Leave code from RunL()

         * @return hard-coded KErrNone

         */

        TInt RunError( TInt aError );

    private:

        /**

         * Constructor

         * @param CFilePlugin& aFilePlugin File plugin

         */

        CMMCMonitor( CFilePlugin& aFilePlugin );

        /**

         * 2nd phase construction

         * @param RFs* aFsSession File server session

         */

        void ConstructL( RFs* aFsSession );

    private: // data members

        // handle to file plugin main class

        CFilePlugin& iFilePlugin;

        // file monitor client engine

        RFastFindFSPEngine iEngine;

        // File system handle

        RFs* iFsSession;

        // inserted/ejected status of mmc

        TBool iMmcStatus;

        // MMC Inserted/ejected property

        RProperty iProperty;

    };

#endif // CMMCMONITOR_H