/*

* Copyright (c) 2002-2006 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:  This AO is signaled when directory entry is added or removed 

*                from file system

*

*/

#ifndef CFILEMANAGERFILESYSTEMEVENT_H

#define CFILEMANAGERFILESYSTEMEVENT_H

// INCLUDES

#include <e32base.h>

#include <f32file.h>

// FORWARD DECLARATIONS

class CFileManagerEngine;

// CLASS DECLARATION

/**

*  This class listens file system events

*

*  @lib FileManagerEngine.lib

*  @since 2.0

*/

NONSHARABLE_CLASS(CFileManagerFileSystemEvent) : public CActive

    {

    public:  // Constructors and destructor

        /**

        * Two-phased constructor.

        */

        static CFileManagerFileSystemEvent* NewL( RFs& aFs, 

            CFileManagerEngine& aEngine,

            TNotifyType aNotifyType, 

            const TDesC& aFullPath = KNullDesC );

        /**

        * Destructor.

        */

        virtual ~CFileManagerFileSystemEvent();

    public:

        /**

        * Sets file system event

        * @since 2.0

        */

        void Setup();

        /**

        * This calls refresh if file system event has happened

        * @since 2.0

        */

        void CheckFileSystemEvent();

    protected:  // Functions from base classes

        /**

        * From CActive Called when asynchronous request has completed

        * @since 2.0

        */

        void RunL();

        /**

        * From CActive Called when asynchronous request has failed

        * @since 2.0

        */

        TInt RunError( TInt aError );

        /**

        * From CActive Called when asynchronous request was cancelled

        * @since 2.0

        */

        void DoCancel();

    private:

        /**

        * By default Symbian 2nd phase constructor is private.

        */

        void ConstructL( const TDesC& aFullPath );

        /**

        * C++ default constructor.

        */

        CFileManagerFileSystemEvent(

            RFs& aFs, 

            CFileManagerEngine& aEngine,

            TNotifyType aNotifyType );

    private:    // Data

        // Ref: Reference to opened File System session

        RFs& iFs;

        // Ref: This object is called when RunL occurs

        CFileManagerEngine& iEngine;

        // Type of the notify, entry or disk.

        TNotifyType iNotifyType;

        // Full path of folder from where notification is needed

        HBufC* iFullPath;

        // Indicates if the event has been received

        TBool iIsReceived;

    };

#endif // CFILEMANAGERFILESYSTEMEVENT_H

// End of File