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path: root/lingucomponent/source/spellcheck/macosxspell/macspellimp.cxx
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/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_lingucomponent.hxx"
#include <com/sun/star/uno/Reference.h>
#include <com/sun/star/linguistic2/XSearchableDictionaryList.hpp>

#include <com/sun/star/linguistic2/SpellFailure.hpp>
#include <cppuhelper/factory.hxx>   // helper for factories
#include <com/sun/star/registry/XRegistryKey.hpp>
#include <tools/debug.hxx>
#include <unotools/processfactory.hxx>
#include <osl/mutex.hxx>

//#include <hunspell.hxx>
#include <dictmgr.hxx>
#include <macspellimp.hxx>

//#include <linguistic/lngprops.hxx>
#include <linguistic/spelldta.hxx>
#include <unotools/pathoptions.hxx>
#include <unotools/useroptions.hxx>
#include <osl/file.hxx>
#include <rtl/ustrbuf.hxx>


using namespace utl;
using namespace osl;
using namespace rtl;
using namespace com::sun::star;
using namespace com::sun::star::beans;
using namespace com::sun::star::lang;
using namespace com::sun::star::uno;
using namespace com::sun::star::linguistic2;
using namespace linguistic;
///////////////////////////////////////////////////////////////////////////
// dbg_dump for development
#if OSL_DEBUG_LEVEL > 1
#include <rtl/strbuf.hxx>
#include <rtl/ustring.hxx>

const sal_Char *dbg_dump(const rtl::OString &rStr)
{
    static rtl::OStringBuffer aStr;

    aStr = rtl::OStringBuffer(rStr);
    aStr.append(static_cast<char>(0));
    return aStr.getStr();
}

const sal_Char *dbg_dump(const rtl::OUString &rStr)
{
    return dbg_dump(rtl::OUStringToOString(rStr, RTL_TEXTENCODING_UTF8));
}

const sal_Char *dbg_dump(rtl_String *pStr)
{
    return dbg_dump(rtl::OString(pStr));
}

const sal_Char *dbg_dump(rtl_uString *pStr)
{
    return dbg_dump(rtl::OUString(pStr));
}

#endif
///////////////////////////////////////////////////////////////////////////

MacSpellChecker::MacSpellChecker() :
    aEvtListeners   ( GetLinguMutex() )
{
//    aDicts = NULL;
    aDEncs = NULL;
    aDLocs = NULL;
    aDNames = NULL;
    bDisposing = FALSE;
    pPropHelper = NULL;
    numdict = 0;
    NSApplicationLoad();
    NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
    macSpell = [NSSpellChecker sharedSpellChecker];
    macTag = [NSSpellChecker uniqueSpellDocumentTag];
    [pool release];
}


MacSpellChecker::~MacSpellChecker()
{
  // if (aDicts) {
  //    for (int i = 0; i < numdict; i++) {
  //           if (aDicts[i]) delete aDicts[i];
  //           aDicts[i] = NULL;
  //    }
  //    delete[] aDicts;
  // }
  // aDicts = NULL;
  numdict = 0;
  if (aDEncs) delete[] aDEncs;
  aDEncs = NULL;
  if (aDLocs) delete[] aDLocs;
  aDLocs = NULL;
  if (aDNames) delete[] aDNames;
  aDNames = NULL;
  if (pPropHelper)
     pPropHelper->RemoveAsPropListener();
}


PropertyHelper_Spell & MacSpellChecker::GetPropHelper_Impl()
{
    if (!pPropHelper)
    {
        Reference< XPropertySet >   xPropSet( GetLinguProperties(), UNO_QUERY );

        pPropHelper = new PropertyHelper_Spell( (XSpellChecker *) this, xPropSet );
        xPropHelper = pPropHelper;
        pPropHelper->AddAsPropListener();   //! after a reference is established
    }
    return *pPropHelper;
}


Sequence< Locale > SAL_CALL MacSpellChecker::getLocales()
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

        // this routine should return the locales supported by the installed
        // dictionaries.  So here we need to parse both the user edited
        // dictionary list and the shared dictionary list
        // to see what dictionaries the admin/user has installed

        int numusr;          // number of user dictionary entries
        int numshr;          // number of shared dictionary entries
        dictentry * spdict;  // shared dict entry pointer
        dictentry * updict;  // user dict entry pointer
        SvtPathOptions aPathOpt;
        rtl_TextEncoding aEnc = RTL_TEXTENCODING_UTF8;

        std::vector<objc_object *> postspdict;
        //std::vector<dictentry *> postspdict;
        std::vector<dictentry *> postupdict;


    if (!numdict) {

        // invoke a dictionary manager to get the user dictionary list
        // TODO How on Mac OS X?

        // invoke a second  dictionary manager to get the shared dictionary list
        NSArray *aLocales = [NSLocale availableLocaleIdentifiers];

        //Test for existence of the dictionaries
        for (unsigned int i = 0; i < [aLocales count]; i++)
        {
            if( [macSpell setLanguage:[aLocales objectAtIndex:i] ] )
            {
                postspdict.push_back( [ aLocales objectAtIndex:i ] );
            }
        }

        numusr = postupdict.size();
        numshr = postspdict.size();

        // we really should merge these and remove duplicates but since
        // users can name their dictionaries anything they want it would
        // be impossible to know if a real duplication exists unless we
        // add some unique key to each myspell dictionary
        numdict = numshr + numusr;

        if (numdict) {
            aDLocs = new Locale [numdict];
            aDEncs  = new rtl_TextEncoding [numdict];
            aDNames = new OUString [numdict];
            aSuppLocales.realloc(numdict);
            Locale * pLocale = aSuppLocales.getArray();
            int numlocs = 0;
            int newloc;
            int i,j;
            int k = 0;

            //first add the user dictionaries
            //TODO for MAC?

            // now add the shared dictionaries
            for (i = 0; i < numshr; i++) {
                NSDictionary *aLocDict = [ NSLocale componentsFromLocaleIdentifier:postspdict[i] ];
                NSString* aLang = [ aLocDict objectForKey:NSLocaleLanguageCode ];
                NSString* aCountry = [ aLocDict objectForKey:NSLocaleCountryCode ];
                OUString lang([aLang cStringUsingEncoding: NSUTF8StringEncoding], [aLang length], aEnc);
                OUString country([ aCountry cStringUsingEncoding: NSUTF8StringEncoding], [aCountry length], aEnc);
                Locale nLoc( lang, country, OUString() );
                newloc = 1;
                //eliminate duplicates (is this needed for MacOS?)
                for (j = 0; j < numlocs; j++) {
                    if (nLoc == pLocale[j]) newloc = 0;
                }
                if (newloc) {
                    pLocale[numlocs] = nLoc;
                    numlocs++;
                }
                aDLocs[k] = nLoc;
                //pointer to Hunspell dictionary - not needed for MAC
                //aDicts[k] = NULL;
                aDEncs[k] = 0;
                // Dictionary file names not valid for Mac Spell
                //aDNames[k] = aPathOpt.GetLinguisticPath() + A2OU("/ooo/") + A2OU(postspdict[i]->filename);
                k++;
            }

            aSuppLocales.realloc(numlocs);

        } else {
            /* no dictionary.lst found so register no dictionaries */
            numdict = 0;
            //aDicts = NULL;
                aDEncs  = NULL;
                aDLocs = NULL;
                aDNames = NULL;
                aSuppLocales.realloc(0);
            }

            /* de-allocation of memory is handled inside the DictMgr */
            updict = NULL;
            spdict = NULL;

        }

    return aSuppLocales;
}



sal_Bool SAL_CALL MacSpellChecker::hasLocale(const Locale& rLocale)
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    BOOL bRes = FALSE;
    if (!aSuppLocales.getLength())
        getLocales();

    INT32 nLen = aSuppLocales.getLength();
    for (INT32 i = 0;  i < nLen;  ++i)
    {
        const Locale *pLocale = aSuppLocales.getConstArray();
        if (rLocale == pLocale[i])
        {
            bRes = TRUE;
            break;
        }
    }
    return bRes;
}


INT16 MacSpellChecker::GetSpellFailure( const OUString &rWord, const Locale &rLocale )
{
    rtl_TextEncoding aEnc;

    // initialize a myspell object for each dictionary once
        // (note: mutex is held higher up in isValid)


    INT16 nRes = -1;

        // first handle smart quotes both single and double
    OUStringBuffer rBuf(rWord);
        sal_Int32 n = rBuf.getLength();
        sal_Unicode c;
    for (sal_Int32 ix=0; ix < n; ix++) {
        c = rBuf.charAt(ix);
            if ((c == 0x201C) || (c == 0x201D)) rBuf.setCharAt(ix,(sal_Unicode)0x0022);
            if ((c == 0x2018) || (c == 0x2019)) rBuf.setCharAt(ix,(sal_Unicode)0x0027);
        }
        OUString nWord(rBuf.makeStringAndClear());

    if (n)
    {
        aEnc = 0;
        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
        NSString* aNSStr = [[NSString alloc] initWithCharacters: nWord.getStr() length: nWord.getLength()];
        NSString* aLang = [[NSString alloc] initWithCharacters: rLocale.Language.getStr() length: rLocale.Language.getLength()];
        if(rLocale.Country.getLength()>0)
        {
            NSString* aCountry = [[NSString alloc] initWithCharacters: rLocale.Country.getStr() length: rLocale.Country.getLength()];
            NSString* aTag = @"_";
            NSString* aTaggedCountry = [aTag stringByAppendingString:aCountry];
            [aLang autorelease];
            aLang = [aLang  stringByAppendingString:aTaggedCountry];
        }

        int aCount;
        NSRange range = [macSpell checkSpellingOfString:aNSStr startingAt:0 language:aLang wrap:FALSE inSpellDocumentWithTag:macTag wordCount:&aCount];
        int rVal = 0;
        if(range.length>0)
        {
            rVal = -1;
        }
        else
        {
            rVal = 1;
        }
        [pool release];
        if (rVal != 1)
        {
            nRes = SpellFailure::SPELLING_ERROR;
        } else {
            return -1;
        }
    }
    return nRes;
}



sal_Bool SAL_CALL
    MacSpellChecker::isValid( const OUString& rWord, const Locale& rLocale,
            const PropertyValues& rProperties )
        throw(IllegalArgumentException, RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

     if (rLocale == Locale()  ||  !rWord.getLength())
        return TRUE;

    if (!hasLocale( rLocale ))
#ifdef LINGU_EXCEPTIONS
        throw( IllegalArgumentException() );
#else
        return TRUE;
#endif

    // Get property values to be used.
    // These are be the default values set in the SN_LINGU_PROPERTIES
    // PropertySet which are overridden by the supplied ones from the
    // last argument.
    // You'll probably like to use a simplier solution than the provided
    // one using the PropertyHelper_Spell.

    PropertyHelper_Spell &rHelper = GetPropHelper();
    rHelper.SetTmpPropVals( rProperties );

    INT16 nFailure = GetSpellFailure( rWord, rLocale );
    if (nFailure != -1)
    {
        INT16 nLang = LocaleToLanguage( rLocale );
        // postprocess result for errors that should be ignored
        if (   (!rHelper.IsSpellUpperCase()  && IsUpper( rWord, nLang ))
            || (!rHelper.IsSpellWithDigits() && HasDigits( rWord ))
            || (!rHelper.IsSpellCapitalization()
                &&  nFailure == SpellFailure::CAPTION_ERROR)
        )
            nFailure = -1;
    }

    return (nFailure == -1);
}


Reference< XSpellAlternatives >
    MacSpellChecker::GetProposals( const OUString &rWord, const Locale &rLocale )
{
    // Retrieves the return values for the 'spell' function call in case
    // of a misspelled word.
    // Especially it may give a list of suggested (correct) words:

    Reference< XSpellAlternatives > xRes;
        // note: mutex is held by higher up by spell which covers both

    INT16 nLang = LocaleToLanguage( rLocale );
    int count;
    Sequence< OUString > aStr( 0 );

        // first handle smart quotes (single and double)
    OUStringBuffer rBuf(rWord);
        sal_Int32 n = rBuf.getLength();
        sal_Unicode c;
    for (sal_Int32 ix=0; ix < n; ix++) {
         c = rBuf.charAt(ix);
             if ((c == 0x201C) || (c == 0x201D)) rBuf.setCharAt(ix,(sal_Unicode)0x0022);
             if ((c == 0x2018) || (c == 0x2019)) rBuf.setCharAt(ix,(sal_Unicode)0x0027);
        }
        OUString nWord(rBuf.makeStringAndClear());

    if (n)
    {
        NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
        NSString* aNSStr = [[NSString alloc] initWithCharacters: nWord.getStr() length: nWord.getLength()];
        NSString* aLang = [[NSString alloc] initWithCharacters: rLocale.Language.getStr() length: rLocale.Language.getLength() ];
        if(rLocale.Country.getLength()>0)
        {
            NSString* aCountry = [[NSString alloc] initWithCharacters: rLocale.Country.getStr() length: rLocale.Country.getLength() ];
            NSString* aTag = @"_";
            NSString* aTaggedCountry = [aTag stringByAppendingString:aCountry];
            [aLang autorelease];
            aLang = [aLang  stringByAppendingString:aTaggedCountry];
        }
        [macSpell setLanguage:aLang];
        NSArray *guesses = [macSpell guessesForWord:aNSStr];
        count = [guesses count];
        if (count)
        {
           aStr.realloc( count );
           OUString *pStr = aStr.getArray();
               for (int ii=0; ii < count; ii++)
               {
                  // if needed add: if (suglst[ii] == NULL) continue;
                  NSString* guess = [guesses objectAtIndex:ii];
                  OUString cvtwrd((const sal_Unicode*)[guess cStringUsingEncoding:NSUnicodeStringEncoding], (sal_Int32)[guess length]);
                  pStr[ii] = cvtwrd;
               }
        }
       [pool release];
    }

            // now return an empty alternative for no suggestions or the list of alternatives if some found
        SpellAlternatives *pAlt = new SpellAlternatives;
            String aTmp(rWord);
        pAlt->SetWordLanguage( aTmp, nLang );
        pAlt->SetFailureType( SpellFailure::SPELLING_ERROR );
        pAlt->SetAlternatives( aStr );
        xRes = pAlt;
        return xRes;

}




Reference< XSpellAlternatives > SAL_CALL
    MacSpellChecker::spell( const OUString& rWord, const Locale& rLocale,
            const PropertyValues& rProperties )
        throw(IllegalArgumentException, RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

     if (rLocale == Locale()  ||  !rWord.getLength())
        return NULL;

    if (!hasLocale( rLocale ))
#ifdef LINGU_EXCEPTIONS
        throw( IllegalArgumentException() );
#else
        return NULL;
#endif

    Reference< XSpellAlternatives > xAlt;
    if (!isValid( rWord, rLocale, rProperties ))
    {
        xAlt =  GetProposals( rWord, rLocale );
    }
    return xAlt;
}


Reference< XInterface > SAL_CALL MacSpellChecker_CreateInstance(
            const Reference< XMultiServiceFactory > & /*rSMgr*/ )
        throw(Exception)
{

    Reference< XInterface > xService = (cppu::OWeakObject*) new MacSpellChecker;
    return xService;
}


sal_Bool SAL_CALL
    MacSpellChecker::addLinguServiceEventListener(
            const Reference< XLinguServiceEventListener >& rxLstnr )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    BOOL bRes = FALSE;
    if (!bDisposing && rxLstnr.is())
    {
        bRes = GetPropHelper().addLinguServiceEventListener( rxLstnr );
    }
    return bRes;
}


sal_Bool SAL_CALL
    MacSpellChecker::removeLinguServiceEventListener(
            const Reference< XLinguServiceEventListener >& rxLstnr )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    BOOL bRes = FALSE;
    if (!bDisposing && rxLstnr.is())
    {
        DBG_ASSERT( xPropHelper.is(), "xPropHelper non existent" );
        bRes = GetPropHelper().removeLinguServiceEventListener( rxLstnr );
    }
    return bRes;
}


OUString SAL_CALL
    MacSpellChecker::getServiceDisplayName( const Locale& /*rLocale*/ )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );
    return A2OU( "Mac OS X Spell Checker" );
}


void SAL_CALL
    MacSpellChecker::initialize( const Sequence< Any >& rArguments )
        throw(Exception, RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    if (!pPropHelper)
    {
        INT32 nLen = rArguments.getLength();
        if (2 == nLen)
        {
            Reference< XPropertySet >   xPropSet;
            rArguments.getConstArray()[0] >>= xPropSet;
            //rArguments.getConstArray()[1] >>= xDicList;

            //! Pointer allows for access of the non-UNO functions.
            //! And the reference to the UNO-functions while increasing
            //! the ref-count and will implicitly free the memory
            //! when the object is not longer used.
            pPropHelper = new PropertyHelper_Spell( (XSpellChecker *) this, xPropSet );
            xPropHelper = pPropHelper;
            pPropHelper->AddAsPropListener();   //! after a reference is established
        }
        else
            DBG_ERROR( "wrong number of arguments in sequence" );

    }
}


void SAL_CALL
    MacSpellChecker::dispose()
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    if (!bDisposing)
    {
        bDisposing = TRUE;
        EventObject aEvtObj( (XSpellChecker *) this );
        aEvtListeners.disposeAndClear( aEvtObj );
    }
}


void SAL_CALL
    MacSpellChecker::addEventListener( const Reference< XEventListener >& rxListener )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    if (!bDisposing && rxListener.is())
        aEvtListeners.addInterface( rxListener );
}


void SAL_CALL
    MacSpellChecker::removeEventListener( const Reference< XEventListener >& rxListener )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    if (!bDisposing && rxListener.is())
        aEvtListeners.removeInterface( rxListener );
}


///////////////////////////////////////////////////////////////////////////
// Service specific part
//

OUString SAL_CALL MacSpellChecker::getImplementationName()
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    return getImplementationName_Static();
}


sal_Bool SAL_CALL MacSpellChecker::supportsService( const OUString& ServiceName )
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    Sequence< OUString > aSNL = getSupportedServiceNames();
    const OUString * pArray = aSNL.getConstArray();
    for( INT32 i = 0; i < aSNL.getLength(); i++ )
        if( pArray[i] == ServiceName )
            return TRUE;
    return FALSE;
}


Sequence< OUString > SAL_CALL MacSpellChecker::getSupportedServiceNames()
        throw(RuntimeException)
{
    MutexGuard  aGuard( GetLinguMutex() );

    return getSupportedServiceNames_Static();
}


Sequence< OUString > MacSpellChecker::getSupportedServiceNames_Static()
        throw()
{
    MutexGuard  aGuard( GetLinguMutex() );

    Sequence< OUString > aSNS( 1 ); // auch mehr als 1 Service moeglich
    aSNS.getArray()[0] = A2OU( SN_SPELLCHECKER );
    return aSNS;
}

void * SAL_CALL MacSpellChecker_getFactory( const sal_Char * pImplName,
            XMultiServiceFactory * pServiceManager, void *  )
{
    void * pRet = 0;
    if ( !MacSpellChecker::getImplementationName_Static().compareToAscii( pImplName ) )
    {
        Reference< XSingleServiceFactory > xFactory =
            cppu::createOneInstanceFactory(
                pServiceManager,
                MacSpellChecker::getImplementationName_Static(),
                MacSpellChecker_CreateInstance,
                MacSpellChecker::getSupportedServiceNames_Static());
        // acquire, because we return an interface pointer instead of a reference
        xFactory->acquire();
        pRet = xFactory.get();
    }
    return pRet;
}


///////////////////////////////////////////////////////////////////////////