/*

* Copyright (c) 2022 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* 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 <bldvariant.hrh>

#include "PictographObserver.h"

#include <featmgr.h> 

#include <e32std.h>

#include <charconv.h>

#include <convutils.h>

#include <JISBASE.H>

#include <jisx0201.h>

#include <jisx0208.h>

#include <jisx0212.h>

#include <ecom/implementationproxy.h>

#include "charactersetconverter.h"

_LIT8(KLit8EscapeSequenceForJisRoman, "\x1b\x28\x4a");

_LIT8(KLit8EscapeSequenceForAscii, "\x1b\x28\x42");

_LIT8(KLit8EscapeSequenceForJisC6226_1978, "\x1b\x24\x40");

_LIT8(KLit8EscapeSequenceForJisX0208_1983, "\x1b\x24\x42");

_LIT8(KLit8EscapeSequenceForJisX0212_1990, "\x1b\x24\x28\x44");

_LIT8(KLit8EscapeSequenceForHalfWidthKatakana, "\x1b\x28\x49");

_LIT8(KLit8Iso2022Jp1ReplacementForUnconvertibleUnicodeCharacters, "\x1b\x24\x42\x21\x29"); // fullwidth question mark

class CISO2022JP1ConverterImpl : public CCharacterSetConverterPluginInterface

	{

public:

	virtual const TDesC8& ReplacementForUnconvertibleUnicodeCharacters();

	virtual TInt ConvertFromUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

		TDes8& aForeign, 

		const TDesC16& aUnicode, 

		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters);

	virtual TInt ConvertToUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		TDes16& aUnicode, 

		const TDesC8& aForeign, 

		TInt& aState, 

		TInt& aNumberOfUnconvertibleCharacters, 

		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter);

	virtual TBool IsInThisCharacterSetL(

		TBool& aSetToTrue, 

		TInt& aConfidenceLevel, 

		const TDesC8& aSample);

	static CISO2022JP1ConverterImpl* NewL();

	virtual ~CISO2022JP1ConverterImpl();

private:

	CISO2022JP1ConverterImpl();

	void ConstructL();

	};

const TDesC8& CISO2022JP1ConverterImpl::ReplacementForUnconvertibleUnicodeCharacters()

	{

	return KLit8Iso2022Jp1ReplacementForUnconvertibleUnicodeCharacters;

	}

LOCAL_C void ConvertFromJisRomanToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisRoman, 1);

	}

LOCAL_C void ConvertFromAsciiToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForAscii, 1);

	}

LOCAL_C void ConvertFromJisX0208ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0208_1983, 2);

	}

LOCAL_C void ConvertFromJisX0212ToJisInPlace(TInt aStartPositionInDescriptor, TDes8& aDescriptor, TInt& aNumberOfCharactersThatDroppedOut)

	{

	CnvUtilities::ConvertFromIntermediateBufferInPlace(aStartPositionInDescriptor, aDescriptor, aNumberOfCharactersThatDroppedOut, KLit8EscapeSequenceForJisX0212_1990, 2);

	}

TInt CISO2022JP1ConverterImpl::ConvertFromUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		const TDesC8& aReplacementForUnconvertibleUnicodeCharacters, 

		TDes8& aForeign, 

		const TDesC16& aUnicode, 

		CCnvCharacterSetConverter::TArrayOfAscendingIndices& aIndicesOfUnconvertibleCharacters)

	{

    RArray<CnvUtilities::SCharacterSet> characterSets;

    if ( FeatureManager::FeatureSupported(KFeatureIdJapanesePicto) )

        {        

        CnvUtilities::SCharacterSet characterSet;

        characterSet.iConversionData=&CnvJisRoman::ConversionData();

        characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisRomanToJisInPlace;

        characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisRoman;

        characterSets.Append(characterSet);

        characterSet.iConversionData=&CCnvCharacterSetConverter::AsciiConversionData();

        characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromAsciiToJisInPlace;

        characterSet.iEscapeSequence=&KLit8EscapeSequenceForAscii;

        characterSets.Append(characterSet);

        characterSet.iConversionData=&CnvJisX0208::ConversionData();

        characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToJisInPlace;

        characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisX0208_1983;

        characterSets.Append(characterSet);

        characterSet.iConversionData=&CnvJisX0212::ConversionData();

        characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisX0212ToJisInPlace;

        characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisX0212_1990;

        characterSets.Append(characterSet);

        SetCharacterSetsForPictograph(characterSets);

        }

    else

        {        

        CnvUtilities::SCharacterSet characterSet;

	    characterSet.iConversionData=&CnvJisRoman::ConversionData();

	    characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisRomanToJisInPlace;

	    characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisRoman;

        characterSets.Append(characterSet);

    	characterSet.iConversionData=&CCnvCharacterSetConverter::AsciiConversionData();

    	characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromAsciiToJisInPlace;

    	characterSet.iEscapeSequence=&KLit8EscapeSequenceForAscii;

        characterSets.Append(characterSet);

    	characterSet.iConversionData=&CnvJisX0208::ConversionData();

    	characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisX0208ToJisInPlace;

    	characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisX0208_1983;

        characterSets.Append(characterSet);

    	characterSet.iConversionData=&CnvJisX0212::ConversionData();

    	characterSet.iConvertFromIntermediateBufferInPlace=ConvertFromJisX0212ToJisInPlace;

    	characterSet.iEscapeSequence=&KLit8EscapeSequenceForJisX0212_1990;

        characterSets.Append(characterSet);

        }

	TUint notUsed;

	TUint inputConversionFlags=CCnvCharacterSetConverter::EInputConversionFlagMustEndInDefaultCharacterSet;

    TInt unconvert = CnvUtilities::ConvertFromUnicode(aDefaultEndiannessOfForeignCharacters, aReplacementForUnconvertibleUnicodeCharacters, aForeign, aUnicode, aIndicesOfUnconvertibleCharacters, 

        characterSets.Array(),notUsed,inputConversionFlags);

    characterSets.Close();

    return unconvert;

	}

TInt CISO2022JP1ConverterImpl::ConvertToUnicode(

		CCnvCharacterSetConverter::TEndianness aDefaultEndiannessOfForeignCharacters, 

		TDes16& aUnicode, 

		const TDesC8& aForeign, 

		TInt& aState, 

		TInt& aNumberOfUnconvertibleCharacters, 

		TInt& aIndexOfFirstByteOfFirstUnconvertibleCharacter)

	{

	return CnvJisBase::ConvertToUnicode(aDefaultEndiannessOfForeignCharacters, aUnicode, aForeign, aState, aNumberOfUnconvertibleCharacters, aIndexOfFirstByteOfFirstUnconvertibleCharacter);

	}

TBool CISO2022JP1ConverterImpl::IsInThisCharacterSetL(

		TBool& aSetToTrue, 

		TInt& aConfidenceLevel, 

		const TDesC8& aSample)

	{

	aSetToTrue=ETrue;

	CnvJisBase::IsCharacterJISBased(aConfidenceLevel, aSample);

	return ETrue;

	}

CISO2022JP1ConverterImpl* CISO2022JP1ConverterImpl::NewL()

	{

	CISO2022JP1ConverterImpl* self = new(ELeave) CISO2022JP1ConverterImpl();

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

CISO2022JP1ConverterImpl::~CISO2022JP1ConverterImpl()

	{

	FeatureManager::UnInitializeLib();

	}

CISO2022JP1ConverterImpl::CISO2022JP1ConverterImpl()

	{

	}

void CISO2022JP1ConverterImpl::ConstructL()

	{

	FeatureManager::InitializeLibL();

	}

const TImplementationProxy ImplementationTable[] = 

	{

		IMPLEMENTATION_PROXY_ENTRY(0x100066A3,	CISO2022JP1ConverterImpl::NewL)

	};

EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount)

	{

	aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy);

	return ImplementationTable;

	}