/*

* 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:  Monitors for new or deleted files

*

*/

#ifndef CMPXFOLDERMONITOR_H

#define CMPXFOLDERMONITOR_H

#include <e32base.h>

#include <f32file.h>

class MMPXFileAdditionObserver;

class MMPXFolderMonitorObserver;

/**

 *  Folder monitor class

 *

 *  @lib mpxfilehandler

 *  @since S60 3.0

 */

NONSHARABLE_CLASS( CMPXFolderMonitor ) : public CActive

    {

public:

    /**

    * Two-phased constructor

    */

    static CMPXFolderMonitor* NewL( MMPXFolderMonitorObserver& aObserver, 

                                    RFs& aFs );

    /**

    * Virtual destructor

    */

    virtual ~CMPXFolderMonitor();

    /**

    * Start monitoring a particular drive

    * @param aDrive drive to monitor

    */

    void StartL( TDriveNumber aDrive );

    /**

    * Start monitoring a particular folder

    * @param aFolder folder to monitor

    */

    void StartL( const TDesC& aFolder );

protected:

    /**

    * From CActive

    */

    void RunL();

    /**

    * From CActive

    */

    void DoCancel();

    /**

    *  From CActive

    */

    TInt RunError(TInt aError);    

private:

    /**

    * Private constructor

    */

    CMPXFolderMonitor( MMPXFolderMonitorObserver& aObserver, 

                       RFs& aFs );

    /**

    * 2nd phased constructor

    */

    void ConstructL();

private: // data

    MMPXFolderMonitorObserver&  iObserver;

    RFs& iFs; 

    HBufC* iFolderName;   // drive name, always "?:\\"

    };

#endif // CMPXFOLDERMONITOR_H