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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <inputsequencechecker.hxx>
#include <com/sun/star/i18n/InputSequenceCheckMode.hpp>
#include <com/sun/star/uno/XComponentContext.hpp>
#include <cppuhelper/supportsservice.hxx>
#include <i18nutil/unicode.hxx>
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::i18n;
using namespace ::com::sun::star::lang;
namespace i18npool {
InputSequenceCheckerImpl::InputSequenceCheckerImpl( const Reference < XComponentContext >& rxContext ) : m_xContext( rxContext )
{
serviceName = "com.sun.star.i18n.InputSequenceChecker";
cachedItem = nullptr;
}
InputSequenceCheckerImpl::InputSequenceCheckerImpl(const char *pServiceName)
: serviceName(pServiceName)
, cachedItem(nullptr)
{
}
InputSequenceCheckerImpl::~InputSequenceCheckerImpl()
{
}
sal_Bool SAL_CALL
InputSequenceCheckerImpl::checkInputSequence(const OUString& Text, sal_Int32 nStartPos,
sal_Unicode inputChar, sal_Int16 inputCheckMode)
{
if (inputCheckMode == InputSequenceCheckMode::PASSTHROUGH)
return true;
char* language = getLanguageByScripType(Text[nStartPos], inputChar);
if (language)
return getInputSequenceChecker(language)->checkInputSequence(Text, nStartPos, inputChar, inputCheckMode);
else
return true; // not a checkable languages.
}
sal_Int32 SAL_CALL
InputSequenceCheckerImpl::correctInputSequence(OUString& Text, sal_Int32 nStartPos,
sal_Unicode inputChar, sal_Int16 inputCheckMode)
{
if (inputCheckMode != InputSequenceCheckMode::PASSTHROUGH) {
char* language = getLanguageByScripType(Text[nStartPos], inputChar);
if (language)
return getInputSequenceChecker(language)->correctInputSequence(Text, nStartPos, inputChar, inputCheckMode);
}
Text = Text.replaceAt(++nStartPos, 0, OUString(inputChar));
return nStartPos;
}
static ScriptTypeList const typeList[] = {
//{ UnicodeScript_kHebrew, UnicodeScript_kHebrew }, // 10,
//{ UnicodeScript_kArabic, UnicodeScript_kArabic }, // 11,
{ UnicodeScript_kDevanagari, UnicodeScript_kDevanagari, sal_Int16(UnicodeScript_kDevanagari) }, // 14,
{ UnicodeScript_kThai, UnicodeScript_kThai, sal_Int16(UnicodeScript_kThai) }, // 24,
{ UnicodeScript_kScriptCount, UnicodeScript_kScriptCount, sal_Int16(UnicodeScript_kScriptCount) } // 88
};
char*
InputSequenceCheckerImpl::getLanguageByScripType(sal_Unicode cChar, sal_Unicode nChar)
{
css::i18n::UnicodeScript type = static_cast<css::i18n::UnicodeScript>(unicode::getUnicodeScriptType( cChar, typeList, sal_Int16(UnicodeScript_kScriptCount) ));
if (type != UnicodeScript_kScriptCount &&
type == static_cast<css::i18n::UnicodeScript>(unicode::getUnicodeScriptType( nChar, typeList, sal_Int16(UnicodeScript_kScriptCount) ))) {
switch(type) {
case UnicodeScript_kThai: return const_cast<char*>("th");
//case UnicodeScript_kArabic: return (char*)"ar";
//case UnicodeScript_kHebrew: return (char*)"he";
case UnicodeScript_kDevanagari: return const_cast<char*>("hi");
default: break;
}
}
return nullptr;
}
Reference< XExtendedInputSequenceChecker >&
InputSequenceCheckerImpl::getInputSequenceChecker(char const * rLanguage)
{
if (cachedItem && cachedItem->aLanguage == rLanguage) {
return cachedItem->xISC;
}
else {
for (const auto& l : lookupTable) {
cachedItem = l.get();
if (cachedItem->aLanguage == rLanguage)
return cachedItem->xISC;
}
Reference < XInterface > xI = m_xContext->getServiceManager()->createInstanceWithContext(
"com.sun.star.i18n.InputSequenceChecker_" +
OUString::createFromAscii(rLanguage),
m_xContext);
if ( xI.is() ) {
Reference< XExtendedInputSequenceChecker > xISC( xI, UNO_QUERY );
if (xISC.is()) {
lookupTable.emplace_back(new lookupTableItem(rLanguage, xISC));
cachedItem = lookupTable.back().get();
return cachedItem->xISC;
}
}
}
throw RuntimeException();
}
OUString SAL_CALL
InputSequenceCheckerImpl::getImplementationName()
{
return OUString::createFromAscii(serviceName);
}
sal_Bool SAL_CALL
InputSequenceCheckerImpl::supportsService(const OUString& rServiceName)
{
return cppu::supportsService(this, rServiceName);
}
Sequence< OUString > SAL_CALL
InputSequenceCheckerImpl::getSupportedServiceNames()
{
Sequence< OUString > aRet { OUString::createFromAscii(serviceName) };
return aRet;
}
}
extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface *
com_sun_star_i18n_InputSequenceChecker_get_implementation(
css::uno::XComponentContext *context,
css::uno::Sequence<css::uno::Any> const &)
{
return cppu::acquire(new i18npool::InputSequenceCheckerImpl(context));
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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