cppuhelper/source/tdmgr.cxx

   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
  21 #include <sal/config.h>
  22 #include <sal/log.hxx>
  23
  24 #include <vector>
  25
  26 #include <osl/diagnose.h>
  27 #include <rtl/ustring.hxx>
  28
  29 #include <uno/lbnames.h>
  30 #include <uno/mapping.hxx>
  31
  32 #include <cppuhelper/bootstrap.hxx>
  33 #include <cppuhelper/implbase.hxx>
  34 #include <typelib/typedescription.h>
  35
  36 #include <com/sun/star/lang/XComponent.hpp>
  37 #include <com/sun/star/container/XHierarchicalNameAccess.hpp>
  38 #include <com/sun/star/reflection/XTypeDescription.hpp>
  39 #include <com/sun/star/reflection/XEnumTypeDescription.hpp>
  40 #include <com/sun/star/reflection/XIndirectTypeDescription.hpp>
  41 #include <com/sun/star/reflection/XInterfaceMemberTypeDescription.hpp>
  42 #include <com/sun/star/reflection/XInterfaceAttributeTypeDescription2.hpp>
  43 #include <com/sun/star/reflection/XMethodParameter.hpp>
  44 #include <com/sun/star/reflection/XInterfaceMethodTypeDescription.hpp>
  45 #include <com/sun/star/reflection/XInterfaceTypeDescription2.hpp>
  46 #include <com/sun/star/reflection/XCompoundTypeDescription.hpp>
  47 #include <com/sun/star/reflection/XStructTypeDescription.hpp>
  48
  49 #include <memory>
  50
  51 using namespace ::com::sun::star;
  52 using namespace ::com::sun::star::uno;
  53 using namespace ::com::sun::star::reflection;
  54
  55 namespace cppu
  56 {
  57
  58 static typelib_TypeDescription * createCTD(
  59     Reference< container::XHierarchicalNameAccess > const & access,
  60     const Reference< XTypeDescription > & xType );
  61
  62
  63 static typelib_TypeDescription * createCTD(
  64     const Reference< XCompoundTypeDescription > & xType )
  65 {
  66     typelib_TypeDescription * pRet = nullptr;
  67     if (xType.is())
  68     {
  69         typelib_TypeDescription * pBaseType = createCTD(
  70             Reference< XCompoundTypeDescription >::query( xType->getBaseType() ) );
  71         if (pBaseType)
  72             typelib_typedescription_register( &pBaseType );
  73
  74         // construct member init array
  75         const Sequence<Reference< XTypeDescription > > & rMemberTypes = xType->getMemberTypes();
  76         const Sequence< OUString > & rMemberNames                     = xType->getMemberNames();
  77
  78         const Reference< XTypeDescription > * pMemberTypes = rMemberTypes.getConstArray();
  79         const OUString * pMemberNames                      = rMemberNames.getConstArray();
  80
  81         sal_Int32 nMembers = rMemberTypes.getLength();
  82         OSL_ENSURE( nMembers == rMemberNames.getLength(), "### lens differ!" );
  83
  84         OUString aTypeName( xType->getName() );
  85
  86         typelib_CompoundMember_Init * pMemberInits = static_cast<typelib_CompoundMember_Init *>(alloca(
  87             sizeof(typelib_CompoundMember_Init) * nMembers ));
  88
  89         sal_Int32 nPos;
  90         for ( nPos = nMembers; nPos--; )
  91         {
  92             typelib_CompoundMember_Init & rInit = pMemberInits[nPos];
  93             rInit.eTypeClass = static_cast<typelib_TypeClass>(pMemberTypes[nPos]->getTypeClass());
  94
  95             OUString aMemberTypeName( pMemberTypes[nPos]->getName() );
  96             rtl_uString_acquire( rInit.pTypeName = aMemberTypeName.pData );
  97
  98             // string is held by rMemberNames
  99             rInit.pMemberName = pMemberNames[nPos].pData;
 100         }
 101
 102         typelib_typedescription_new(
 103             &pRet,
 104             static_cast<typelib_TypeClass>(xType->getTypeClass()),
 105             aTypeName.pData,
 106             (pBaseType ? pBaseType->pWeakRef : nullptr),
 107             nMembers, pMemberInits );
 108
 109         // cleanup
 110         for ( nPos = nMembers; nPos--; )
 111         {
 112             rtl_uString_release( pMemberInits[nPos].pTypeName );
 113         }
 114         if (pBaseType)
 115             typelib_typedescription_release( pBaseType );
 116     }
 117     return pRet;
 118 }
 119
 120 static typelib_TypeDescription * createCTD(
 121     Reference< container::XHierarchicalNameAccess > const & access,
 122     const Reference< XStructTypeDescription > & xType )
 123 {
 124     typelib_TypeDescription * pRet = nullptr;
 125     if (xType.is() && xType->getTypeParameters().getLength() == 0)
 126     {
 127         typelib_TypeDescription * pBaseType = createCTD(
 128             access, xType->getBaseType() );
 129         if (pBaseType)
 130             typelib_typedescription_register( &pBaseType );
 131
 132         // construct member init array
 133         const Sequence<Reference< XTypeDescription > > & rMemberTypes = xType->getMemberTypes();
 134         const Sequence< OUString > & rMemberNames                     = xType->getMemberNames();
 135
 136         const Reference< XTypeDescription > * pMemberTypes = rMemberTypes.getConstArray();
 137         const OUString * pMemberNames                      = rMemberNames.getConstArray();
 138
 139         sal_Int32 nMembers = rMemberTypes.getLength();
 140         OSL_ENSURE( nMembers == rMemberNames.getLength(), "### lens differ!" );
 141
 142         OUString aTypeName( xType->getName() );
 143
 144         typelib_StructMember_Init * pMemberInits = static_cast<typelib_StructMember_Init *>(alloca(
 145             sizeof(typelib_StructMember_Init) * nMembers ));
 146
 147         Sequence< Reference< XTypeDescription > > templateMemberTypes;
 148         sal_Int32 i = aTypeName.indexOf('<');
 149         if (i >= 0) {
 150             Reference< XStructTypeDescription > templateDesc(
 151                 access->getByHierarchicalName(aTypeName.copy(0, i)),
 152                 UNO_QUERY_THROW);
 153             OSL_ASSERT(
 154                 templateDesc->getTypeParameters().getLength()
 155                 == xType->getTypeArguments().getLength());
 156             templateMemberTypes = templateDesc->getMemberTypes();
 157             OSL_ASSERT(templateMemberTypes.getLength() == nMembers);
 158         }
 159
 160         sal_Int32 nPos;
 161         for ( nPos = nMembers; nPos--; )
 162         {
 163             typelib_StructMember_Init & rInit = pMemberInits[nPos];
 164             rInit.aBase.eTypeClass
 165                 = static_cast<typelib_TypeClass>(pMemberTypes[nPos]->getTypeClass());
 166
 167             OUString aMemberTypeName( pMemberTypes[nPos]->getName() );
 168             rtl_uString_acquire(
 169                 rInit.aBase.pTypeName = aMemberTypeName.pData );
 170
 171             // string is held by rMemberNames
 172             rInit.aBase.pMemberName = pMemberNames[nPos].pData;
 173
 174             rInit.bParameterizedType = templateMemberTypes.getLength() != 0
 175                 && (templateMemberTypes[nPos]->getTypeClass()
 176                     == TypeClass_UNKNOWN);
 177         }
 178
 179         typelib_typedescription_newStruct(
 180             &pRet,
 181             aTypeName.pData,
 182             (pBaseType ? pBaseType->pWeakRef : nullptr),
 183             nMembers, pMemberInits );
 184
 185         // cleanup
 186         for ( nPos = nMembers; nPos--; )
 187         {
 188             rtl_uString_release( pMemberInits[nPos].aBase.pTypeName );
 189         }
 190         if (pBaseType)
 191             typelib_typedescription_release( pBaseType );
 192     }
 193     return pRet;
 194 }
 195
 196 static typelib_TypeDescription * createCTD(
 197     const Reference< XInterfaceAttributeTypeDescription2 > & xAttribute )
 198 {
 199     typelib_TypeDescription * pRet = nullptr;
 200     if (xAttribute.is())
 201     {
 202         OUString aMemberName( xAttribute->getName() );
 203         Reference< XTypeDescription > xType( xAttribute->getType() );
 204         OUString aMemberTypeName( xType->getName() );
 205         std::vector< rtl_uString * > getExc;
 206         Sequence< Reference< XCompoundTypeDescription > > getExcs(
 207             xAttribute->getGetExceptions() );
 208         for (sal_Int32 i = 0; i != getExcs.getLength(); ++i)
 209         {
 210             OSL_ASSERT( getExcs[i].is() );
 211             getExc.push_back( getExcs[i]->getName().pData );
 212         }
 213         std::vector< rtl_uString * > setExc;
 214         Sequence< Reference< XCompoundTypeDescription > > setExcs(
 215             xAttribute->getSetExceptions() );
 216         for (sal_Int32 i = 0; i != setExcs.getLength(); ++i)
 217         {
 218             OSL_ASSERT( setExcs[i].is() );
 219             setExc.push_back( setExcs[i]->getName().pData );
 220         }
 221         typelib_typedescription_newExtendedInterfaceAttribute(
 222             reinterpret_cast<typelib_InterfaceAttributeTypeDescription **>(&pRet),
 223             xAttribute->getPosition(),
 224             aMemberName.pData, // name
 225             static_cast<typelib_TypeClass>(xType->getTypeClass()),
 226             aMemberTypeName.pData, // type name
 227             xAttribute->isReadOnly(),
 228             getExc.size(), getExc.data(),
 229             setExc.size(), setExc.data() );
 230     }
 231     return pRet;
 232 }
 233
 234 static typelib_TypeDescription * createCTD(
 235     const Reference< XInterfaceMethodTypeDescription > & xMethod )
 236 {
 237     typelib_TypeDescription * pRet = nullptr;
 238     if (xMethod.is())
 239     {
 240         Reference< XTypeDescription > xReturnType( xMethod->getReturnType() );
 241
 242         // init all params
 243         const Sequence<Reference< XMethodParameter > > & rParams = xMethod->getParameters();
 244         const Reference< XMethodParameter > * pParams            = rParams.getConstArray();
 245         sal_Int32 nParams = rParams.getLength();
 246
 247         typelib_Parameter_Init * pParamInit = static_cast<typelib_Parameter_Init *>(alloca(
 248             sizeof(typelib_Parameter_Init) * nParams ));
 249
 250         sal_Int32 nPos;
 251         for ( nPos = nParams; nPos--; )
 252         {
 253             const Reference< XMethodParameter > & xParam = pParams[nPos];
 254             const Reference< XTypeDescription > & xType  = xParam->getType();
 255             typelib_Parameter_Init & rInit = pParamInit[xParam->getPosition()];
 256
 257             rInit.eTypeClass = static_cast<typelib_TypeClass>(xType->getTypeClass());
 258             OUString aParamTypeName( xType->getName() );
 259             rtl_uString_acquire( rInit.pTypeName = aParamTypeName.pData );
 260             OUString aParamName( xParam->getName() );
 261             rtl_uString_acquire( rInit.pParamName = aParamName.pData );
 262             rInit.bIn  = xParam->isIn();
 263             rInit.bOut = xParam->isOut();
 264         }
 265
 266         // init all exception strings
 267         const Sequence<Reference< XTypeDescription > > & rExceptions = xMethod->getExceptions();
 268         const Reference< XTypeDescription > * pExceptions = rExceptions.getConstArray();
 269         sal_Int32 nExceptions = rExceptions.getLength();
 270         rtl_uString ** ppExceptionNames = static_cast<rtl_uString **>(alloca(
 271             sizeof(rtl_uString *) * nExceptions ));
 272
 273         for ( nPos = nExceptions; nPos--; )
 274         {
 275             OUString aExceptionTypeName( pExceptions[nPos]->getName() );
 276             rtl_uString_acquire( ppExceptionNames[nPos] = aExceptionTypeName.pData );
 277         }
 278
 279         OUString aTypeName( xMethod->getName() );
 280         OUString aReturnTypeName( xReturnType->getName() );
 281
 282         typelib_typedescription_newInterfaceMethod(
 283             reinterpret_cast<typelib_InterfaceMethodTypeDescription **>(&pRet),
 284             xMethod->getPosition(),
 285             xMethod->isOneway(),
 286             aTypeName.pData,
 287             static_cast<typelib_TypeClass>(xReturnType->getTypeClass()),
 288             aReturnTypeName.pData,
 289             nParams, pParamInit,
 290             nExceptions, ppExceptionNames );
 291
 292         for ( nPos = nParams; nPos--; )
 293         {
 294             rtl_uString_release( pParamInit[nPos].pTypeName );
 295             rtl_uString_release( pParamInit[nPos].pParamName );
 296         }
 297         for ( nPos = nExceptions; nPos--; )
 298         {
 299             rtl_uString_release( ppExceptionNames[nPos] );
 300         }
 301     }
 302     return pRet;
 303 }
 304
 305 static typelib_TypeDescription * createCTD(
 306     Reference< container::XHierarchicalNameAccess > const & access,
 307     const Reference< XInterfaceTypeDescription2 > & xType )
 308 {
 309     typelib_TypeDescription * pRet = nullptr;
 310     if (xType.is())
 311     {
 312         Sequence< Reference< XTypeDescription > > aBases(xType->getBaseTypes());
 313         sal_Int32 nBases = aBases.getLength();
 314         // Exploit the fact that a typelib_TypeDescription for an interface type
 315         // is also the typelib_TypeDescriptionReference for that type:
 316         std::unique_ptr< typelib_TypeDescription * []> aBaseTypes(
 317             new typelib_TypeDescription *[nBases]);
 318         for (sal_Int32 i = 0; i < nBases; ++i) {
 319             typelib_TypeDescription * p = createCTD(access, aBases[i]);
 320             OSL_ASSERT(
 321                 !TYPELIB_TYPEDESCRIPTIONREFERENCE_ISREALLYWEAK(p->eTypeClass));
 322             typelib_typedescription_register(&p);
 323             aBaseTypes[i] = p;
 324         }
 325         typelib_TypeDescriptionReference ** pBaseTypeRefs
 326             = reinterpret_cast< typelib_TypeDescriptionReference ** >(
 327                 aBaseTypes.get());
 328
 329         // construct all member refs
 330         const Sequence<Reference< XInterfaceMemberTypeDescription > > & rMembers = xType->getMembers();
 331         sal_Int32 nMembers = rMembers.getLength();
 332
 333         typelib_TypeDescriptionReference ** ppMemberRefs = static_cast<typelib_TypeDescriptionReference **>(alloca(
 334             sizeof(typelib_TypeDescriptionReference *) * nMembers ));
 335
 336         const Reference< XInterfaceMemberTypeDescription > * pMembers = rMembers.getConstArray();
 337
 338         OUString aTypeName( xType->getName() );
 339
 340         sal_Int32 nPos;
 341         for ( nPos = nMembers; nPos--; )
 342         {
 343             OUString aMemberTypeName( pMembers[nPos]->getName() );
 344             ppMemberRefs[nPos] = nullptr;
 345             typelib_typedescriptionreference_new(
 346                 ppMemberRefs + nPos,
 347                 static_cast<typelib_TypeClass>(pMembers[nPos]->getTypeClass()),
 348                 aMemberTypeName.pData );
 349         }
 350
 351         typelib_typedescription_newMIInterface(
 352             reinterpret_cast<typelib_InterfaceTypeDescription **>(&pRet),
 353             aTypeName.pData,
 354             0, 0, 0, 0, 0,
 355             nBases, pBaseTypeRefs,
 356             nMembers, ppMemberRefs );
 357
 358         // cleanup refs and base type
 359         for (int i = 0; i < nBases; ++i) {
 360             typelib_typedescription_release(aBaseTypes[i]);
 361         }
 362
 363         for ( nPos = nMembers; nPos--; )
 364         {
 365             typelib_typedescriptionreference_release( ppMemberRefs[nPos] );
 366         }
 367     }
 368     return pRet;
 369 }
 370
 371 static typelib_TypeDescription * createCTD( const Reference< XEnumTypeDescription > & xType )
 372 {
 373     typelib_TypeDescription * pRet = nullptr;
 374     if (xType.is())
 375     {
 376         OUString aTypeName( xType->getName() );
 377         Sequence< OUString > aNames( xType->getEnumNames() );
 378         OSL_ASSERT( sizeof(OUString) == sizeof(rtl_uString *) ); // !!!
 379         Sequence< sal_Int32 > aValues( xType->getEnumValues() );
 380
 381         typelib_typedescription_newEnum(
 382             &pRet, aTypeName.pData, xType->getDefaultEnumValue(),
 383             aNames.getLength(),
 384             const_cast<rtl_uString **>(reinterpret_cast<rtl_uString * const *>(aNames.getConstArray())),
 385             const_cast< sal_Int32 * >( aValues.getConstArray() ) );
 386     }
 387     return pRet;
 388 }
 389
 390 static typelib_TypeDescription * createCTD(
 391     Reference< container::XHierarchicalNameAccess > const & access,
 392     const Reference< XIndirectTypeDescription > & xType )
 393 {
 394     typelib_TypeDescription * pRet = nullptr;
 395     if (xType.is())
 396     {
 397         typelib_TypeDescription * pRefType = createCTD(
 398             access, xType->getReferencedType() );
 399         typelib_typedescription_register( &pRefType );
 400
 401         OUString aTypeName( xType->getName() );
 402
 403         typelib_typedescription_new(
 404             &pRet,
 405             static_cast<typelib_TypeClass>(xType->getTypeClass()),
 406             aTypeName.pData,
 407             pRefType->pWeakRef,
 408             0, nullptr );
 409
 410         // cleanup
 411         typelib_typedescription_release( pRefType );
 412     }
 413     return pRet;
 414 }
 415
 416
 417 static typelib_TypeDescription * createCTD(
 418     Reference< container::XHierarchicalNameAccess > const & access,
 419     const Reference< XTypeDescription > & xType )
 420 {
 421     typelib_TypeDescription * pRet = nullptr;
 422
 423     if (xType.is())
 424     {
 425         switch (xType->getTypeClass())
 426         {
 427             // built in types
 428         case TypeClass_VOID:
 429         {
 430             OUString aTypeName("void");
 431             typelib_typedescription_new( &pRet, typelib_TypeClass_VOID, aTypeName.pData, nullptr, 0, nullptr );
 432             break;
 433         }
 434         case TypeClass_CHAR:
 435         {
 436             OUString aTypeName("char");
 437             typelib_typedescription_new( &pRet, typelib_TypeClass_CHAR, aTypeName.pData, nullptr, 0, nullptr );
 438             break;
 439         }
 440         case TypeClass_BOOLEAN:
 441         {
 442             OUString aTypeName("boolean");
 443             typelib_typedescription_new( &pRet, typelib_TypeClass_BOOLEAN, aTypeName.pData, nullptr, 0, nullptr );
 444             break;
 445         }
 446         case TypeClass_BYTE:
 447         {
 448             OUString aTypeName("byte");
 449             typelib_typedescription_new( &pRet, typelib_TypeClass_BYTE, aTypeName.pData, nullptr, 0, nullptr );
 450             break;
 451         }
 452         case TypeClass_SHORT:
 453         {
 454             OUString aTypeName("short");
 455             typelib_typedescription_new( &pRet, typelib_TypeClass_SHORT, aTypeName.pData, nullptr, 0, nullptr );
 456             break;
 457         }
 458         case TypeClass_UNSIGNED_SHORT:
 459         {
 460             OUString aTypeName("unsigned short");
 461             typelib_typedescription_new( &pRet, typelib_TypeClass_UNSIGNED_SHORT, aTypeName.pData, nullptr, 0, nullptr );
 462             break;
 463         }
 464         case TypeClass_LONG:
 465         {
 466             OUString aTypeName("long");
 467             typelib_typedescription_new( &pRet, typelib_TypeClass_LONG, aTypeName.pData, nullptr, 0, nullptr );
 468             break;
 469         }
 470         case TypeClass_UNSIGNED_LONG:
 471         {
 472             OUString aTypeName("unsigned long");
 473             typelib_typedescription_new( &pRet, typelib_TypeClass_UNSIGNED_LONG, aTypeName.pData, nullptr, 0, nullptr );
 474             break;
 475         }
 476         case TypeClass_HYPER:
 477         {
 478             OUString aTypeName("hyper");
 479             typelib_typedescription_new( &pRet, typelib_TypeClass_HYPER, aTypeName.pData, nullptr, 0, nullptr );
 480             break;
 481         }
 482         case TypeClass_UNSIGNED_HYPER:
 483         {
 484             OUString aTypeName("unsigned hyper");
 485             typelib_typedescription_new( &pRet, typelib_TypeClass_UNSIGNED_HYPER, aTypeName.pData, nullptr, 0, nullptr );
 486             break;
 487         }
 488         case TypeClass_FLOAT:
 489         {
 490             OUString aTypeName("float");
 491             typelib_typedescription_new( &pRet, typelib_TypeClass_FLOAT, aTypeName.pData, nullptr, 0, nullptr );
 492             break;
 493         }
 494         case TypeClass_DOUBLE:
 495         {
 496             OUString aTypeName("double");
 497             typelib_typedescription_new( &pRet, typelib_TypeClass_DOUBLE, aTypeName.pData, nullptr, 0, nullptr );
 498             break;
 499         }
 500         case TypeClass_STRING:
 501         {
 502             OUString aTypeName("string");
 503             typelib_typedescription_new( &pRet, typelib_TypeClass_STRING, aTypeName.pData, nullptr, 0, nullptr );
 504             break;
 505         }
 506         case TypeClass_TYPE:
 507         {
 508             OUString aTypeName("type");
 509             typelib_typedescription_new( &pRet, typelib_TypeClass_TYPE, aTypeName.pData, nullptr, 0, nullptr );
 510             break;
 511         }
 512         case TypeClass_ANY:
 513         {
 514             OUString aTypeName("any");
 515             typelib_typedescription_new( &pRet, typelib_TypeClass_ANY, aTypeName.pData, nullptr, 0, nullptr );
 516             break;
 517         }
 518
 519         case TypeClass_EXCEPTION:
 520             pRet = createCTD( Reference< XCompoundTypeDescription >::query( xType ) );
 521             break;
 522         case TypeClass_STRUCT:
 523             pRet = createCTD(
 524                 access, Reference< XStructTypeDescription >::query( xType ) );
 525             break;
 526         case TypeClass_ENUM:
 527             pRet = createCTD( Reference< XEnumTypeDescription >::query( xType ) );
 528             break;
 529         case TypeClass_TYPEDEF:
 530         {
 531             Reference< XIndirectTypeDescription > xTypedef( xType, UNO_QUERY );
 532             if (xTypedef.is())
 533                 pRet = createCTD( access, xTypedef->getReferencedType() );
 534             break;
 535         }
 536         case TypeClass_SEQUENCE:
 537             pRet = createCTD(
 538                 access, Reference< XIndirectTypeDescription >::query( xType ) );
 539             break;
 540         case TypeClass_INTERFACE:
 541             pRet = createCTD(
 542                 access,
 543                 Reference< XInterfaceTypeDescription2 >::query( xType ) );
 544             break;
 545         case TypeClass_INTERFACE_METHOD:
 546             pRet = createCTD( Reference< XInterfaceMethodTypeDescription >::query( xType ) );
 547             break;
 548         case TypeClass_INTERFACE_ATTRIBUTE:
 549             pRet = createCTD( Reference< XInterfaceAttributeTypeDescription2 >::query( xType ) );
 550             break;
 551         default:
 552             break;
 553         }
 554     }
 555
 556     return pRet;
 557 }
 558
 559
 560 extern "C"
 561 {
 562 static void typelib_callback(
 563     void * pContext, typelib_TypeDescription ** ppRet, rtl_uString * pTypeName )
 564 {
 565     OSL_ENSURE( pContext && ppRet && pTypeName, "### null ptr!" );
 566     if (ppRet)
 567     {
 568         if (*ppRet)
 569         {
 570             ::typelib_typedescription_release( *ppRet );
 571             *ppRet = nullptr;
 572         }
 573         if (pContext && pTypeName)
 574         {
 575             Reference< container::XHierarchicalNameAccess > access(
 576                 static_cast< container::XHierarchicalNameAccess * >(
 577                     pContext));
 578             try
 579             {
 580                 OUString const & rTypeName = OUString::unacquired( &pTypeName );
 581                 Reference< XTypeDescription > xTD;
 582                 if (access->getByHierarchicalName(rTypeName ) >>= xTD)
 583                 {
 584                     *ppRet = createCTD( access, xTD );
 585                 }
 586             }
 587             catch (const container::NoSuchElementException & exc)
 588             {
 589                 SAL_INFO("cppuhelper", "typelibrary type not available: " << exc );
 590             }
 591             catch (const Exception & exc)
 592             {
 593                 SAL_INFO("cppuhelper", exc );
 594             }
 595         }
 596     }
 597 }
 598 }
 599
 600
 601 class EventListenerImpl
 602     : public WeakImplHelper< lang::XEventListener >
 603 {
 604     Reference< container::XHierarchicalNameAccess > m_xTDMgr;
 605
 606 public:
 607     explicit EventListenerImpl(
 608         Reference< container::XHierarchicalNameAccess > const & xTDMgr )
 609         : m_xTDMgr( xTDMgr )
 610         {}
 611
 612     // XEventListener
 613     virtual void SAL_CALL disposing( lang::EventObject const & rEvt ) override;
 614 };
 615
 616 void EventListenerImpl::disposing( lang::EventObject const & rEvt )
 617 {
 618     if (rEvt.Source != m_xTDMgr) {
 619         OSL_ASSERT(false);
 620     }
 621     // deregister of c typelib callback
 622     ::typelib_typedescription_revokeCallback( m_xTDMgr.get(), typelib_callback );
 623 }
 624
 625
 626 sal_Bool SAL_CALL installTypeDescriptionManager(
 627     Reference< container::XHierarchicalNameAccess > const & xTDMgr_c )
 628 {
 629     uno::Environment curr_env(Environment::getCurrent());
 630     uno::Environment target_env(CPPU_CURRENT_LANGUAGE_BINDING_NAME);
 631
 632     uno::Mapping curr2target(curr_env, target_env);
 633
 634
 635     Reference<container::XHierarchicalNameAccess> xTDMgr(
 636         static_cast<container::XHierarchicalNameAccess *>(
 637             curr2target.mapInterface(xTDMgr_c.get(), cppu::UnoType<decltype(xTDMgr_c)>::get())),
 638         SAL_NO_ACQUIRE);
 639
 640     Reference< lang::XComponent > xComp( xTDMgr, UNO_QUERY );
 641     if (xComp.is())
 642     {
 643         xComp->addEventListener( new EventListenerImpl( xTDMgr ) );
 644         // register c typelib callback
 645         ::typelib_typedescription_registerCallback( xTDMgr.get(), typelib_callback );
 646         return true;
 647     }
 648     return false;
 649 }
 650
 651 } // end namespace cppu
 652
 653 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */