/*

* 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:  

 *

*/

#include <driveinfo.h>

#include "cawidgetmmcwatcher.h"

// ================= MEMBER FUNCTIONS =======================

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::NewL

// Second phase constructor

// ---------------------------------------------------------

//

CCaWidgetMmcWatcher* CCaWidgetMmcWatcher::NewL( RFs& aFs, 

        MWidgetMmcWatcherCallback* aObserver )

    {

    CCaWidgetMmcWatcher* self = NewLC( aFs, aObserver );

    CleanupStack::Pop( self );

    return self;

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::NewLC

// Second phase constructor

// ---------------------------------------------------------

//

CCaWidgetMmcWatcher* CCaWidgetMmcWatcher::NewLC( RFs& aFs,

        MWidgetMmcWatcherCallback* aObserver )

    {

    CCaWidgetMmcWatcher* self = new (ELeave) CCaWidgetMmcWatcher( aFs, 

            aObserver );

    CleanupStack::PushL ( self );

    self->ConstructL();

    return self;

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::~CCaWidgetMmcWatcher

// Destructor

// ---------------------------------------------------------

//

CCaWidgetMmcWatcher::~CCaWidgetMmcWatcher()

    {    

    Cancel();

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::CCaWidgetMmcWatcher

// Default constructor

// ---------------------------------------------------------

//

CCaWidgetMmcWatcher::CCaWidgetMmcWatcher( RFs& aFs,

        MWidgetMmcWatcherCallback* aObserver )

    : CActive( CActive::EPriorityStandard ),

    iFs(aFs),

    iObserver(aObserver)

    {

    CActiveScheduler::Add(this);

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::ConstructL

// default Symbian OS constructor

// ---------------------------------------------------------

//

void CCaWidgetMmcWatcher::ConstructL()

    {

    WaitForChangeL();

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::WaitForChangeL

// Request notification for disk change

// ---------------------------------------------------------

//    

void CCaWidgetMmcWatcher::WaitForChangeL()

    {

    TInt mmcDrive;

    User::LeaveIfError( DriveInfo::GetDefaultDrive(

        DriveInfo::EDefaultRemovableMassStorage, mmcDrive ) );

    TDriveName mmcDriveName( TDriveUnit( mmcDrive ).Name() );

    iFs.NotifyChange( ENotifyEntry, iStatus, mmcDriveName );

    SetActive();

    }

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::DoCancel

// ---------------------------------------------------------

//

void CCaWidgetMmcWatcher::DoCancel()

    {

    iFs.NotifyChangeCancel();

    }

// ---------------------------------------------------------------------------

// CCaWidgetMmcWatcher::RunError

// ---------------------------------------------------------------------------

//

TInt CCaWidgetMmcWatcher::RunError( TInt /*aError*/ )

    {

    // No need to do anything  

    return KErrNone;

    }    

// ---------------------------------------------------------

// CCaWidgetMmcWatcher::RunL

// ---------------------------------------------------------

//    

void CCaWidgetMmcWatcher::RunL()

    {

    TInt status( iStatus.Int() );

    WaitForChangeL();

    if ( status >= KErrNone ) 

        {

        iObserver->MmcChangeL();

        }

    }