// Copyright (c) 1996-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of the License "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:

// f32\sfat\sl_dir.cpp

// 

//

//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

//!!

//!! WARNING!! DO NOT edit this file !! '\sfat' component is obsolete and is not being used. '\sfat32'replaces it

//!!

//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

//!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

#include "sl_std.h"

CFatDirCB* CFatDirCB::NewL()

//

// Static constructor

//

    {

    CFatDirCB* fatDirCB=new(ELeave) CFatDirCB;

    return fatDirCB;

    }

CFatDirCB::CFatDirCB()

//

// Constructor

//

    {

    }

CFatDirCB::~CFatDirCB()

//

// Destructor

//

    {

    delete iMatch;

    delete iLongNameBuf;

    }

void CFatDirCB::SetDirL(const TFatDirEntry& anEntry,const TDesC& aName)

//

// Set the current entry to anEntryAddr

//

    {

    __PRINT(_L("CFatDirCB::SetDirL"));  

//  iEntryAddr=0;

//  iPending=EFalse;

    iEntry=anEntry;

    iCurrentPos.iCluster= FatMount().StartCluster(iEntry);

    iMatch=aName.AllocL();

    if (iUidType[0]!=TUid::Null() || iUidType[1]!=TUid::Null() || iUidType[2]!=TUid::Null())

        iMatchUid=ETrue;

    }

LOCAL_C TBool CompareUid(const TUidType& aUidTrg, const TUidType& aUidSuitor)

//

// Compare the suitor to the target pattern

//

    {

    if (aUidTrg[0]!=TUid::Null() && aUidTrg[0]!=aUidSuitor[0])

        return(EFalse);

    if (aUidTrg[1]!=TUid::Null() && aUidTrg[1]!=aUidSuitor[1])

        return(EFalse);

    if (aUidTrg[2]!=TUid::Null() && aUidTrg[2]!=aUidSuitor[2])

        return(EFalse);

    return(ETrue);

    }

void CFatDirCB::ReadL(TEntry &anEntry)

//

// Read the next entry from the directory.

//

    {

    __PRINT(_L("CFatDirCB::ReadL"));

    FatMount().CheckStateConsistentL();

    Mem::FillZ(&anEntry.iType,sizeof(TUidType));

    TPtr entryName(anEntry.iName.Des());

    FOREVER

        {

        if (iPending)

            entryName=(*iLongNameBuf);

        else

            {

            FatMount().FindDosNameL(*iMatch,iAtt,iCurrentPos,iEntry,entryName,KErrEof);

            FatMount().MoveToNextEntryL(iCurrentPos);

            }

        iPending=EFalse;

        if (iEntry.Attributes()&~KEntryAttMaskSupported)

            continue; // Ignore illegal entries

        anEntry.iAtt=iEntry.Attributes();

        anEntry.iSize=iEntry.Size();

        anEntry.iModified=iEntry.Time(FatMount().TimeOffset() );

        if (entryName.Length()==0)

            {

            //  VFAT entry names are always created for UNICODE at an earlier stage

            //  However, UNICODE builds may still encounter genuine FAT filenames through

            //  the introduction of files created using a narrow (ASCII) build

            TBuf8<0x20> dosName(DosNameFromStdFormat(iEntry.Name()));

            LocaleUtils::ConvertToUnicodeL(entryName, dosName);

            }

        TBool matchedUid=ETrue;

        if (iMatchUid && (anEntry.iAtt&KEntryAttDir)==EFalse)

            {

            if ((TUint)anEntry.iSize>=sizeof(TCheckedUid))

                FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry);

            if (CompareUid(iUidType,anEntry.iType)==EFalse)

                matchedUid=EFalse;

            }

        if (matchedUid)

            break;

        }

    if ((iAtt&KEntryAttAllowUid)==0 || (anEntry.iAtt&KEntryAttDir) || (TUint)anEntry.iSize<sizeof(TCheckedUid))

        return;

    if (iMatchUid==EFalse)

        {

        TInt r;

        TRAP(r,FatMount().ReadUidL(FatMount().StartCluster(iEntry),anEntry));

        if(r!=KErrNone && r!=KErrCorrupt)

            User::Leave(r);

        }

    }

void CFatDirCB::StoreLongEntryNameL(const TDesC& aName)

//

// Store aName while next read is pending

//

    {

    AllocBufferL(iLongNameBuf,aName);

    }