/*

* 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:  Calculates given folder size

*

*/

// INCLUDES

#include "Cfilemanageractivesize.h"

// CONSTANTS

const TInt KFileManagerProcessFilesPerCycle = 20;

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

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

// CFileManagerActiveSize::CFileManagerActiveSize

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CFileManagerActiveSize::CFileManagerActiveSize( RFs& aFs ) :

    iFs( aFs )

    {

    }

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

// CFileManagerActiveSize::NewL

// Two-phased constructor.

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

//

CFileManagerActiveSize* CFileManagerActiveSize::NewL(

        RFs& aFs, const TDesC& aRootFolder )

    {

    CFileManagerActiveSize* self = new( ELeave ) CFileManagerActiveSize(

        aFs );

    CleanupStack::PushL( self );

    self->ConstructL( aRootFolder );

    CleanupStack::Pop( self );

    return self;

    }

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

// CFileManagerActiveSize::ConstructL

// 

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

// 

void CFileManagerActiveSize::ConstructL( const TDesC& aRootFolder )

    {

    iDirScan = CDirScan::NewL( iFs );

    // Set scanning from current directory,

    // take files and folder including the hidden and system files

    // No sorting needed

    iDirScan->SetScanDataL(

        aRootFolder,

        KEntryAttNormal | KEntryAttHidden | KEntryAttSystem,

        ESortNone );

    }

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

// CFileManagerActiveSize::~CFileManagerActiveSize

// Destructor

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

// 

CFileManagerActiveSize::~CFileManagerActiveSize()

    {

    delete iDirScan;

    delete iDir;

    }

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

// CFileManagerActiveSize::IsProcessDone

// 

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

// 

TBool CFileManagerActiveSize::IsProcessDone() const

    {

    return iProcessDone;

    }

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

// CFileManagerActiveSize::StepL

// 

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

// 

void CFileManagerActiveSize::StepL()

    {

    if ( !iDir )

        {

        iDirScan->NextL( iDir );

        if( !iDir )

            {

            iProcessDone = ETrue;

            return;

            }

        }

    TInt processCount( KFileManagerProcessFilesPerCycle );

    while( iFileCounter < iDir->Count() && processCount )

        {

        const TEntry& item( ( *iDir )[ iFileCounter ] );

        iSize += item.FileSize();

        ++iFileCounter;

        --processCount;

        }

    if ( iFileCounter >= iDir->Count() )

        {

        delete iDir;

        iDir = NULL;

        iFileCounter = 0;

        }

    }

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

// CFileManagerActiveSize::GetFolderSize()

// 

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

// 

TInt64 CFileManagerActiveSize::GetFolderSize() const

    {

    if( iProcessDone )

        {

        return iSize;

        }

    return KErrNotFound;

    }

// End of File