// Copyright (c) 1997-2009 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:

// BIF.CPP

//

#include "BIF.H"

#include <s32file.h>		// CFileStore

#include <barsc.h>

#include <barsread.h>

#include "cbifentry.h"

#include "BIFUPAN.H"

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include "bifbase.h"

#endif

//

// Defines and constants

enum TBioInfoFileVersion		// The order here is important, only ever APPEND to the list

	{

	EBifVersionOriginal=1,

	EBifVersionAddedAppCtrl,

	EBifVersionAddedFileExtension

	};

const TInt KIntDefaultArrayGranularity=4;

/** 2nd UID of BIF file stores. */

const TUid KUidBioInfoFile={0x10005233};		// unicode Uid, used as 2nd Uid of file store

/*

 *	CBioInfoFile

 */

CBioInfoFile::CBioInfoFile(RFs& aFs)

: iFs(aFs)

	{

	}

void CBioInfoFile::ConstructL()

	{

	iIconZoomLevelArray=new(ELeave) CArrayFixFlat<TIconZoomLevel>(KIntDefaultArrayGranularity);

	iIdHeaderArray=new(ELeave) CArrayPtrFlat<CIdHeader>(KIntDefaultArrayGranularity);

	}

CBioInfoFile::~CBioInfoFile()

	{

	delete iMessageParserName;

	delete iMessageAppCtrlName;

	delete iDescription;

	delete iFileExtension;

	delete iIconsFilename;

	if(iIdHeaderArray) 

		{

		iIdHeaderArray->ResetAndDestroy();

		delete iIdHeaderArray;

		}

	delete iIconZoomLevelArray;

	}

/*

 *	CIdHeader

 */

CBioInfoFile::CIdHeader::CIdHeader()

	{

	}

CBioInfoFile::CIdHeader::~CIdHeader()

	{

	if (iText.IsPtr())

		delete iText.AsPtr();

	}

void CBioInfoFile::CIdHeader::InternalizeL(RReadStream& aStream)

	{

	iType=(TBioMsgIdType)aStream.ReadInt16L();

	iConfidence=(CApaDataRecognizerType::TRecognitionConfidence)aStream.ReadInt32L();

	aStream>>iText;		// is a TSwizzle 

	iPort=(TUint16)aStream.ReadUint16L();

	iCharacterSet.iUid=(TInt32)aStream.ReadInt32L();

	iGeneralIdData=(TInt16)aStream.ReadInt16L();

	}

void CBioInfoFile::CIdHeader::ExternalizeL(RWriteStream& aStream) const

	{

	aStream.WriteInt16L(iType);

	aStream.WriteInt32L(iConfidence);

	aStream<<iText;		// is a TSwizzle 

	aStream.WriteUint16L(iPort);

	aStream.WriteInt32L(iCharacterSet.iUid);

	aStream.WriteInt16L(iGeneralIdData);

	}

/*

 *	TIconZoomLevel

 */

void CBioInfoFile::TIconZoomLevel::InternalizeL(RReadStream& aStream)

	{

	iZoomLevel=(TInt16)aStream.ReadInt16L();

	}

void CBioInfoFile::TIconZoomLevel::ExternalizeL(RWriteStream& aStream) const

	{

	aStream.WriteInt16L(iZoomLevel);

	}

/*

 *	CBioInfoFileReader

 */

/** Allocates and constructs a new BIF reader object, leaving the object on the 

cleanup stack.

It loads the specified BIF file.

@param	aFs 

Connected file handle

@param	aFileName 

BIF file name

@param	aMsgTypeUid 

Optional message type UID. If this is specified, and the file does not does not 

describe this type, then it leaves with KErrCorrupt.

@return	

New BIF reader object

*/

EXPORT_C CBioInfoFileReader* CBioInfoFileReader::NewLC(RFs& aFs,const TDesC& aFileName,TUid aMsgTypeUid)

	{

	CBioInfoFileReader* self=new(ELeave) CBioInfoFileReader(aFs);

	CleanupStack::PushL(self);

	self->ConstructL(aFileName,aMsgTypeUid);

	return self;

	}

/** Allocates and constructs a new BIF reader object.

It loads the specified BIF file.

@param	aFs 

Connected file handle

@param	aFileName 

BIF file name

@param	aMsgTypeUid 

Optional message type UID. If this is specified, and the file does not does not 

describe this type, then it leaves with KErrCorrupt.

@return

New BIF reader object

*/

EXPORT_C CBioInfoFileReader* CBioInfoFileReader::NewL(RFs& aFs,const TDesC& aFileName,TUid aMsgTypeUid)

	{

	CBioInfoFileReader* self=CBioInfoFileReader::NewLC(aFs,aFileName,aMsgTypeUid);

	CleanupStack::Pop(self);

	return self;

	}

CBioInfoFileReader::CBioInfoFileReader(RFs& aFs)

: CBioInfoFile(aFs)

	{

	}

void CBioInfoFileReader::ConstructL(const TDesC& aFileName,TUid aMsgTypeUid)

	{

	CBioInfoFile::ConstructL();		

	iFileName = aFileName.AllocL();

	TEntry entry;

	User::LeaveIfError(iFs.Entry(aFileName, entry));

	iEntry = CBifEntry::NewL(entry);

	// Load the data

	if( IsResFileL() )

		{

		LoadResourceL(aMsgTypeUid);

		}

	else if( IsDatFile(entry.iType) )

		{

		LoadDataL(aMsgTypeUid);

		}

	else

		{

		User::Leave(KErrCorrupt);

		}

	}

TBool CBioInfoFileReader::IsDatFile(const TUidType& aUidType) const

	{

	if( aUidType[0] == KDirectFileStoreLayoutUid && aUidType[1] == KUidBioInfoFile)

		{

		return ETrue;

		}

	else

		{

		return EFalse;

		}

	}

void CBioInfoFileReader::LoadDataL(TUid aMsgTypeUid)

	{

	// Open file and validate its Uids (if Uid supplied as argument)

	CFileStore* store = CFileStore::OpenLC(iFs, *iFileName, EFileRead|EFileShareReadersOnly);

	const TUidType& type=store->Type();

	if (aMsgTypeUid!=KNullUid && type[2]!=aMsgTypeUid)

		{

		User::Leave(KErrCorrupt); // it's the wrong file!!!!!

		}

	// Read from file into our data members

	RStoreReadStream inStream;

	inStream.OpenLC(*store,store->Root());

	InternalizeL(inStream);

	CleanupStack::PopAndDestroy(2, store); // inStream, store

	}

TBool CBioInfoFileReader::IsResFileL() const

	{

	// Check the extension to see if it's a resource file

	TParse parse;

	User::LeaveIfError(parse.Set(*iFileName, NULL, NULL));

	// If first alpha character of extension is 'r' assume we're dealing with a resource file

	TPtrC ext(parse.Ext());

	return ext.Length() > 1 && TCharF(ext[1]) == TCharF('r');

	}

void CBioInfoFileReader::LoadResourceL(TUid aMsgTypeUid)

	{

	// Open the resource file

	RResourceFile file;

	file.OpenL(iFs, *iFileName);

	CleanupClosePushL(file);

	// Read the resource

	HBufC8* resBuf = file.AllocReadLC(1);

	// interpret the resource buffer

	TResourceReader reader;

	reader.SetBuffer(resBuf);

	// Read message type uid, and check it's valid

	iMessageTypeUid = TUid::Uid(reader.ReadInt32());

	if (aMsgTypeUid != KNullUid && iMessageTypeUid != aMsgTypeUid)

		{

		User::Leave(KErrCorrupt);

		}

	// Read message parser name

	delete iMessageParserName;

	iMessageParserName = NULL;

	iMessageParserName = reader.ReadHBufCL();

	// Read message app uid

	iMessageAppUid = TUid::Uid(reader.ReadInt32());

	// Read message appctrl uid

	delete iMessageAppCtrlName;

	iMessageAppCtrlName = NULL;

	iMessageAppCtrlName = reader.ReadHBufCL();

	// Read description

	delete iDescription;

	iDescription = NULL;

	iDescription = reader.ReadHBufCL();

	// Read file extension

	delete iFileExtension;

	iFileExtension = NULL;

	iFileExtension = reader.ReadHBufCL();

	// Read general data[1..3]

	iGeneralData1 = (TInt16)reader.ReadInt16();

	iGeneralData2 = (TInt16)reader.ReadInt16();

	iGeneralData3 = (TInt16)reader.ReadInt16();

	// Read in icon stuff

	delete iIconsFilename;

	iIconsFilename = NULL;

	iIconsFilename = reader.ReadHBufCL();	

	// Read in zoom levels

	TInt icons = reader.ReadInt16();

	while(icons--)

		{

		TIconZoomLevel zoom;

		zoom.iZoomLevel = (TInt16)reader.ReadInt16();

		iIconZoomLevelArray->AppendL(zoom);

		}

	// Read in IDs

	TInt ids = reader.ReadInt16();	

	while( ids-- > 0 )

		{

		CIdHeader* header = new(ELeave)CIdHeader;

		CleanupStack::PushL(header);

		header->iType = (TBioMsgIdType)reader.ReadInt16();

		header->iConfidence = (CApaDataRecognizerType::TRecognitionConfidence)reader.ReadInt32();

		header->iCharacterSet = TUid::Uid(reader.ReadInt32());

		// Don't ask me why it's like this!

		TPtrC text(reader.ReadTPtrC());

		header->iText = HBufC::NewL(text.Length());

		(*header->iText) = text;

		header->iPort = (TInt16)reader.ReadInt16();

		header->iGeneralIdData = (TInt16)reader.ReadInt16();

		iIdHeaderArray->AppendL(header);

		CleanupStack::Pop(header);

		}

	CleanupStack::PopAndDestroy(2, &file);	// resBuf, file

	}

/** 

Destructor. 

*/

EXPORT_C CBioInfoFileReader::~CBioInfoFileReader()

	{

	delete iFileName;

	delete iEntry;

	}

void CBioInfoFileReader::InternalizeL(RReadStream& aStream)

	{

	//

	// Get version number

	const TInt32 version(aStream.ReadInt32L());	

	__ASSERT_DEBUG(version==EBifVersionOriginal || 

			       version==EBifVersionAddedAppCtrl ||

				   version==EBifVersionAddedFileExtension,

				   Panic(EBifUnknownVersion));

	// Get data for BIF version EBifVersionOriginal

	iMessageTypeUid.iUid=(TInt32)aStream.ReadInt32L();

	delete iMessageParserName;

	iMessageParserName = NULL;

	iMessageParserName = HBufC::NewL(aStream, KMaxFileName);

	iMessageAppUid.iUid=(TInt32)aStream.ReadInt32L();

	delete iDescription;

	iDescription = NULL;

	iDescription = HBufC::NewL(aStream, KMaxFileName);

	iGeneralData1=(TInt16)aStream.ReadInt16L();

	iGeneralData2=(TInt16)aStream.ReadInt16L();

	iGeneralData3=(TInt16)aStream.ReadInt16L();

	delete iIconsFilename;

	iIconsFilename = NULL;

	iIconsFilename = HBufC::NewL(aStream, KMaxFileName);

	aStream>>*iIconZoomLevelArray;		

	const TInt32 numHeaders=(TInt32)aStream.ReadInt32L();

	for (TInt32 cc=0; cc<numHeaders; ++cc)

		{

		CIdHeader* header=new(ELeave) CIdHeader;

		CleanupStack::PushL(header);

		aStream>>*header;

		iIdHeaderArray->AppendL(header);

		CleanupStack::Pop(header);

		}

	if(version==EBifVersionOriginal)

		return;

	// Get data for BIF version EBifVersionAddedAppCtrl

	delete iMessageAppCtrlName;

	iMessageAppCtrlName = NULL;

	iMessageAppCtrlName = HBufC::NewL(aStream, KMaxFileName);

	if(version==EBifVersionAddedAppCtrl)

		return;

	delete iFileExtension;

	iFileExtension = NULL;

	iFileExtension = HBufC::NewL(aStream, KMaxFileName);

	if(version==EBifVersionAddedFileExtension)

		return;

	// Put code here for reading data from newer versions of BIF

	}

/** Gets the BIF's message type UID setting.

@return 

Message type UID 

*/

EXPORT_C TUid CBioInfoFileReader::MessageTypeUid() const

	{

	return iMessageTypeUid;

	}

/** Gets the BIF's message parser name.

@return 

BIF's message parser name

*/

EXPORT_C const TPtrC CBioInfoFileReader::MessageParserName() const

	{

	return (iMessageParserName!=NULL) ? iMessageParserName->Des() : TPtrC();  

	}

/** Gets the BIF's application UID setting.

@return

Application UID setting

*/

EXPORT_C TUid CBioInfoFileReader::MessageAppUid() const

	{

	return iMessageAppUid;

	}

/** Deprecated method.

Use CBioInfoFileReader::MessageAppCtrlName

@see CBioInfoFileReader::MessageAppCtrlName

@return

Invalid return.

@deprecated

*/

EXPORT_C TUid CBioInfoFileReader::MessageAppCtrlUid() const

	{

	User::Invariant();

	return TUid();

	}

/** Gets the BIF's control name.

@return

Control name

*/

EXPORT_C const TPtrC CBioInfoFileReader::MessageAppCtrlName() const

	{

	return (iMessageAppCtrlName != NULL) ? iMessageAppCtrlName->Des() : TPtrC();  

	}

/** Gets the BIF's general data 1 setting.

@return 

General data 1 setting

*/

EXPORT_C TInt16 CBioInfoFileReader::GeneralData1() const

	{

	return iGeneralData1;

	}

/** Gets the BIF's general data 2 setting.

@return 

General data 2 setting

*/

EXPORT_C TInt16 CBioInfoFileReader::GeneralData2() const

	{

	return iGeneralData2;

	}

/** Gets the BIF's general data 3 setting.

@return

General data 3 setting

*/

EXPORT_C TInt16 CBioInfoFileReader::GeneralData3() const

	{

	return iGeneralData3;

	}

/** Gets the BIF's description setting.

@return

BIF's description setting

*/

EXPORT_C const TPtrC CBioInfoFileReader::Description() const

	{

	return (iDescription!=NULL) ? iDescription->Des() : TPtrC();  

	}

//

// Data getter

EXPORT_C const TPtrC CBioInfoFileReader::FileExtension() const

/** Gets the BIF's file extension setting.

@return BIF's file extension setting */

	{

	return (iFileExtension!=NULL) ? iFileExtension->Des() : TPtrC();  

	}

/** Gets the BIF's icons filename setting.

@return

BIF's icons filename setting

*/

EXPORT_C const TPtrC CBioInfoFileReader::IconsFilename() const

	{

	return (iIconsFilename!=NULL) ? iIconsFilename->Des() : TPtrC();  

	}

/** Gets the BIF's icon zoom levels setting.