/*

* Copyright (c) 2007 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:  Class for notify disk watcher

*

*/

#ifndef C_DISK_WATCHER_H

#define C_DISK_WATCHER_H

//  INCLUDES

#include <e32std.h>

#include <f32file.h>

#include "diskwatcherbase.h"

#include "disknotifyhandler.h"

// CLASS DECLARATION

/**

* Class provides functionality of notify disk watcher.

*

* @since S60 5.0

*/

NONSHARABLE_CLASS(CDiskWatcher) : public CDiskWatcherBase

    {

public:

    /**

    * This is a two-phase constructor method to create a new watcher instance.

    *

    * @since S60 5.0

    * @param aCallback Reference to callback

    * @param aFs Reference to open file server session

    * @return A pointer to a new watcher instance.

    */

    static CDiskWatcher* NewL(

        MDiskNotifyHandlerCallback& aCallback,

        RFs& aFs );

    /**

    * Destructor.

    */

    ~CDiskWatcher();

    /**

    * Activates watcher

    *

    * @since S60 5.0

    */

    void Activate();

private: // From CDiskWatcherBase

    void WatcherError( TInt aError, const TBool& aKilled );

    void ReactivateWatcher();

    void RunWatcher( const TBool& aKilled );

    void CancelWatcher();

private:

    CDiskWatcher(

        MDiskNotifyHandlerCallback& aCallback,

        RFs& aFs );

    void ConstructL();

    NONSHARABLE_CLASS( TWatcherInfo )

        {

        public:

            void Read( RFs& aFs, TInt aDrive );

            TBool IsChanged( const TWatcherInfo& aNewInfo ) const;

            void Reset();

        public:

            TDriveInfo iDriveInfo;

            TUint iDriveStatus;

        };

private:

    TFixedArray< TWatcherInfo, KMaxDrives > iInfoList;

    };

#endif // C_DISK_WATCHER_H   

// End of File