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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <iostream>
21 :
22 : #include <boost/noncopyable.hpp>
23 : #include <tools/debug.hxx>
24 :
25 : #include <sal/config.h>
26 : #include <cppuhelper/factory.hxx>
27 : #include <cppuhelper/implementationentry.hxx>
28 : #include <cppuhelper/implbase2.hxx>
29 : #include <cppuhelper/supportsservice.hxx>
30 :
31 : #include <simpleguesser.hxx>
32 : #include <guess.hxx>
33 :
34 : #include <com/sun/star/lang/XServiceInfo.hpp>
35 : #include <com/sun/star/linguistic2/XLanguageGuessing.hpp>
36 : #include <unotools/pathoptions.hxx>
37 : #include <unotools/localfilehelper.hxx>
38 : #include <osl/thread.h>
39 :
40 : #include <sal/macros.h>
41 :
42 : #ifdef SYSTEM_LIBEXTTEXTCAT
43 : #include <libexttextcat/textcat.h>
44 : #else
45 : #include <textcat.h>
46 : #endif
47 :
48 : using namespace ::osl;
49 : using namespace ::cppu;
50 : using namespace ::com::sun::star;
51 : using namespace ::com::sun::star::uno;
52 : using namespace ::com::sun::star::lang;
53 : using namespace ::com::sun::star::linguistic2;
54 :
55 : #define SERVICENAME "com.sun.star.linguistic2.LanguageGuessing"
56 : #define IMPLNAME "com.sun.star.lingu2.LanguageGuessing"
57 :
58 2 : static Sequence< OUString > getSupportedServiceNames_LangGuess_Impl()
59 : {
60 2 : Sequence<OUString> names(1);
61 2 : names[0] = SERVICENAME;
62 2 : return names;
63 : }
64 :
65 2 : static OUString getImplementationName_LangGuess_Impl()
66 : {
67 2 : return OUString( IMPLNAME );
68 : }
69 :
70 2 : static osl::Mutex & GetLangGuessMutex()
71 : {
72 2 : static osl::Mutex aMutex;
73 2 : return aMutex;
74 : }
75 :
76 : class LangGuess_Impl :
77 : public ::cppu::WeakImplHelper2<
78 : XLanguageGuessing,
79 : XServiceInfo >,
80 : private boost::noncopyable
81 : {
82 : SimpleGuesser m_aGuesser;
83 : bool m_bInitialized;
84 : css::uno::Reference< css::uno::XComponentContext > m_xContext;
85 :
86 2 : virtual ~LangGuess_Impl() {}
87 : void EnsureInitialized();
88 :
89 : public:
90 : explicit LangGuess_Impl(css::uno::Reference< css::uno::XComponentContext > const & rxContext);
91 :
92 : // XServiceInfo implementation
93 : virtual OUString SAL_CALL getImplementationName( ) throw(RuntimeException, std::exception) SAL_OVERRIDE;
94 : virtual sal_Bool SAL_CALL supportsService( const OUString& ServiceName ) throw(RuntimeException, std::exception) SAL_OVERRIDE;
95 : virtual Sequence< OUString > SAL_CALL getSupportedServiceNames( ) throw(RuntimeException, std::exception) SAL_OVERRIDE;
96 : static Sequence< OUString > SAL_CALL getSupportedServiceNames_Static( );
97 :
98 : // XLanguageGuessing implementation
99 : virtual ::com::sun::star::lang::Locale SAL_CALL guessPrimaryLanguage( const OUString& aText, ::sal_Int32 nStartPos, ::sal_Int32 nLen ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
100 : virtual void SAL_CALL disableLanguages( const ::com::sun::star::uno::Sequence< ::com::sun::star::lang::Locale >& aLanguages ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
101 : virtual void SAL_CALL enableLanguages( const ::com::sun::star::uno::Sequence< ::com::sun::star::lang::Locale >& aLanguages ) throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
102 : virtual ::com::sun::star::uno::Sequence< ::com::sun::star::lang::Locale > SAL_CALL getAvailableLanguages( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
103 : virtual ::com::sun::star::uno::Sequence< ::com::sun::star::lang::Locale > SAL_CALL getEnabledLanguages( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
104 : virtual ::com::sun::star::uno::Sequence< ::com::sun::star::lang::Locale > SAL_CALL getDisabledLanguages( ) throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE;
105 :
106 : // implementation specific
107 : void SetFingerPrintsDB( const OUString &fileName ) throw (RuntimeException);
108 : };
109 :
110 2 : LangGuess_Impl::LangGuess_Impl(css::uno::Reference< css::uno::XComponentContext > const & rxContext) :
111 : m_bInitialized( false ),
112 2 : m_xContext( rxContext )
113 : {
114 2 : }
115 :
116 0 : void LangGuess_Impl::EnsureInitialized()
117 : {
118 0 : if (!m_bInitialized)
119 : {
120 : // set this to true at the very start to prevent loops because of
121 : // implicitly called functions below
122 0 : m_bInitialized = true;
123 :
124 : // set default fingerprint path to where those get installed
125 0 : OUString aPhysPath;
126 0 : OUString aURL( SvtPathOptions().GetFingerprintPath() );
127 0 : utl::LocalFileHelper::ConvertURLToPhysicalName( aURL, aPhysPath );
128 : #ifdef WNT
129 : aPhysPath += "\\";
130 : #else
131 0 : aPhysPath += "/";
132 : #endif
133 :
134 0 : SetFingerPrintsDB( aPhysPath );
135 :
136 : #if !defined(EXTTEXTCAT_VERSION_MAJOR)
137 :
138 : // disable currently not functional languages...
139 : struct LangCountry
140 : {
141 : const char *pLang;
142 : const char *pCountry;
143 : };
144 : LangCountry aDisable[] =
145 : {
146 : // not functional in modified libtextcat, but fixed in >= libexttextcat 3.1.0
147 : // which is the first with EXTTEXTCAT_VERSION_MAJOR defined
148 : {"sco", ""}, {"zh", "CN"}, {"zh", "TW"}, {"ja", ""}, {"ko", ""},
149 : {"ka", ""}, {"hi", ""}, {"mr", ""}, {"ne", ""}, {"sa", ""},
150 : {"ta", ""}, {"th", ""}, {"qu", ""}, {"yi", ""}
151 : };
152 : sal_Int32 nNum = SAL_N_ELEMENTS(aDisable);
153 : Sequence< Locale > aDisableSeq( nNum );
154 : Locale *pDisableSeq = aDisableSeq.getArray();
155 : for (sal_Int32 i = 0; i < nNum; ++i)
156 : {
157 : Locale aLocale;
158 : aLocale.Language = OUString::createFromAscii( aDisable[i].pLang );
159 : aLocale.Country = OUString::createFromAscii( aDisable[i].pCountry );
160 : pDisableSeq[i] = aLocale;
161 : }
162 : disableLanguages( aDisableSeq );
163 : DBG_ASSERT( nNum == getDisabledLanguages().getLength(), "size mismatch" );
164 : #endif
165 : }
166 0 : }
167 :
168 0 : Locale SAL_CALL LangGuess_Impl::guessPrimaryLanguage(
169 : const OUString& rText,
170 : ::sal_Int32 nStartPos,
171 : ::sal_Int32 nLen )
172 : throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
173 : {
174 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
175 :
176 0 : EnsureInitialized();
177 :
178 0 : lang::Locale aRes;
179 0 : if (nStartPos >=0 && nLen >= 0 && nStartPos + nLen <= rText.getLength())
180 : {
181 0 : OString o( OUStringToOString( rText.copy(nStartPos, nLen), RTL_TEXTENCODING_UTF8 ) );
182 0 : Guess g = m_aGuesser.GuessPrimaryLanguage(o.getStr());
183 0 : aRes.Language = OUString::createFromAscii( g.GetLanguage().c_str() );
184 0 : aRes.Country = OUString::createFromAscii( g.GetCountry().c_str() );
185 : }
186 : else
187 0 : throw lang::IllegalArgumentException();
188 :
189 0 : return aRes;
190 : }
191 :
192 : #define DEFAULT_CONF_FILE_NAME "fpdb.conf"
193 :
194 0 : void LangGuess_Impl::SetFingerPrintsDB(
195 : const OUString &filePath )
196 : throw (RuntimeException)
197 : {
198 : //! text encoding for file name / path needs to be in the same encoding the OS uses
199 0 : OString path = OUStringToOString( filePath, osl_getThreadTextEncoding() );
200 0 : OString conf_file_name( DEFAULT_CONF_FILE_NAME );
201 0 : OString conf_file_path(path);
202 0 : conf_file_path += conf_file_name;
203 :
204 0 : m_aGuesser.SetDBPath(conf_file_path.getStr(), path.getStr());
205 0 : }
206 :
207 0 : uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getAvailableLanguages( )
208 : throw (uno::RuntimeException, std::exception)
209 : {
210 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
211 :
212 0 : EnsureInitialized();
213 :
214 0 : Sequence< com::sun::star::lang::Locale > aRes;
215 0 : vector<Guess> gs = m_aGuesser.GetAllManagedLanguages();
216 0 : aRes.realloc(gs.size());
217 :
218 0 : com::sun::star::lang::Locale *pRes = aRes.getArray();
219 :
220 0 : for(size_t i = 0; i < gs.size() ; i++ ){
221 0 : com::sun::star::lang::Locale current_aRes;
222 0 : current_aRes.Language = OUString::createFromAscii( gs[i].GetLanguage().c_str() );
223 0 : current_aRes.Country = OUString::createFromAscii( gs[i].GetCountry().c_str() );
224 0 : pRes[i] = current_aRes;
225 0 : }
226 :
227 0 : return aRes;
228 : }
229 :
230 0 : uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getEnabledLanguages( )
231 : throw (uno::RuntimeException, std::exception)
232 : {
233 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
234 :
235 0 : EnsureInitialized();
236 :
237 0 : Sequence< com::sun::star::lang::Locale > aRes;
238 0 : vector<Guess> gs = m_aGuesser.GetAvailableLanguages();
239 0 : aRes.realloc(gs.size());
240 :
241 0 : com::sun::star::lang::Locale *pRes = aRes.getArray();
242 :
243 0 : for(size_t i = 0; i < gs.size() ; i++ ){
244 0 : com::sun::star::lang::Locale current_aRes;
245 0 : current_aRes.Language = OUString::createFromAscii( gs[i].GetLanguage().c_str() );
246 0 : current_aRes.Country = OUString::createFromAscii( gs[i].GetCountry().c_str() );
247 0 : pRes[i] = current_aRes;
248 0 : }
249 :
250 0 : return aRes;
251 : }
252 :
253 0 : uno::Sequence< Locale > SAL_CALL LangGuess_Impl::getDisabledLanguages( )
254 : throw (uno::RuntimeException, std::exception)
255 : {
256 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
257 :
258 0 : EnsureInitialized();
259 :
260 0 : Sequence< com::sun::star::lang::Locale > aRes;
261 0 : vector<Guess> gs = m_aGuesser.GetUnavailableLanguages();
262 0 : aRes.realloc(gs.size());
263 :
264 0 : com::sun::star::lang::Locale *pRes = aRes.getArray();
265 :
266 0 : for(size_t i = 0; i < gs.size() ; i++ ){
267 0 : com::sun::star::lang::Locale current_aRes;
268 0 : current_aRes.Language = OUString::createFromAscii( gs[i].GetLanguage().c_str() );
269 0 : current_aRes.Country = OUString::createFromAscii( gs[i].GetCountry().c_str() );
270 0 : pRes[i] = current_aRes;
271 0 : }
272 :
273 0 : return aRes;
274 : }
275 :
276 0 : void SAL_CALL LangGuess_Impl::disableLanguages(
277 : const uno::Sequence< Locale >& rLanguages )
278 : throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
279 : {
280 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
281 :
282 0 : EnsureInitialized();
283 :
284 0 : sal_Int32 nLanguages = rLanguages.getLength();
285 0 : const Locale *pLanguages = rLanguages.getConstArray();
286 :
287 0 : for (sal_Int32 i = 0; i < nLanguages; ++i)
288 : {
289 0 : string language;
290 :
291 0 : OString l = OUStringToOString( pLanguages[i].Language, RTL_TEXTENCODING_ASCII_US );
292 0 : OString c = OUStringToOString( pLanguages[i].Country, RTL_TEXTENCODING_ASCII_US );
293 :
294 0 : language += l.getStr();
295 0 : language += "-";
296 0 : language += c.getStr();
297 0 : m_aGuesser.DisableLanguage(language);
298 0 : }
299 0 : }
300 :
301 0 : void SAL_CALL LangGuess_Impl::enableLanguages(
302 : const uno::Sequence< Locale >& rLanguages )
303 : throw (lang::IllegalArgumentException, uno::RuntimeException, std::exception)
304 : {
305 0 : osl::MutexGuard aGuard( GetLangGuessMutex() );
306 :
307 0 : EnsureInitialized();
308 :
309 0 : sal_Int32 nLanguages = rLanguages.getLength();
310 0 : const Locale *pLanguages = rLanguages.getConstArray();
311 :
312 0 : for (sal_Int32 i = 0; i < nLanguages; ++i)
313 : {
314 0 : string language;
315 :
316 0 : OString l = OUStringToOString( pLanguages[i].Language, RTL_TEXTENCODING_ASCII_US );
317 0 : OString c = OUStringToOString( pLanguages[i].Country, RTL_TEXTENCODING_ASCII_US );
318 :
319 0 : language += l.getStr();
320 0 : language += "-";
321 0 : language += c.getStr();
322 0 : m_aGuesser.EnableLanguage(language);
323 0 : }
324 0 : }
325 :
326 1 : OUString SAL_CALL LangGuess_Impl::getImplementationName( )
327 : throw(RuntimeException, std::exception)
328 : {
329 1 : osl::MutexGuard aGuard( GetLangGuessMutex() );
330 1 : return OUString( IMPLNAME );
331 : }
332 :
333 0 : sal_Bool SAL_CALL LangGuess_Impl::supportsService( const OUString& ServiceName )
334 : throw(RuntimeException, std::exception)
335 : {
336 0 : return cppu::supportsService(this, ServiceName);
337 : }
338 :
339 1 : Sequence<OUString> SAL_CALL LangGuess_Impl::getSupportedServiceNames( )
340 : throw(RuntimeException, std::exception)
341 : {
342 1 : osl::MutexGuard aGuard( GetLangGuessMutex() );
343 1 : return getSupportedServiceNames_Static();
344 : }
345 :
346 1 : Sequence<OUString> SAL_CALL LangGuess_Impl::getSupportedServiceNames_Static( )
347 : {
348 1 : OUString aName( SERVICENAME );
349 1 : return Sequence< OUString >( &aName, 1 );
350 : }
351 :
352 : /**
353 : * Function to create a new component instance; is needed by factory helper implementation.
354 : * @param xMgr service manager to if the components needs other component instances
355 : */
356 2 : Reference< XInterface > SAL_CALL LangGuess_Impl_create(
357 : Reference< XComponentContext > const & xContext )
358 : {
359 2 : return static_cast< ::cppu::OWeakObject * >( new LangGuess_Impl(xContext) );
360 : }
361 :
362 : //#### EXPORTED ### functions to allow for registration and creation of the UNO component
363 : static const struct ::cppu::ImplementationEntry s_component_entries [] =
364 : {
365 : {
366 : LangGuess_Impl_create, getImplementationName_LangGuess_Impl,
367 : getSupportedServiceNames_LangGuess_Impl,
368 : ::cppu::createSingleComponentFactory,
369 : 0, 0
370 : },
371 : { 0, 0, 0, 0, 0, 0 }
372 : };
373 :
374 : extern "C"
375 : {
376 :
377 2 : SAL_DLLPUBLIC_EXPORT void * SAL_CALL guesslang_component_getFactory(
378 : sal_Char const * implName, void * xMgr,
379 : void * xRegistry )
380 : {
381 : return ::cppu::component_getFactoryHelper(
382 2 : implName, xMgr, xRegistry, s_component_entries );
383 : }
384 :
385 6 : }
386 :
387 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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