// 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

// 

//

#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);

	}