svx/source/xml/xmleohlp.cxx

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  28
  29
  30 #include <stdio.h>
  31 #include <com/sun/star/io/XStream.hpp>
  32 #include <com/sun/star/embed/XTransactedObject.hpp>
  33 #include <com/sun/star/embed/XEmbedObjectCreator.hpp>
  34 #include <com/sun/star/embed/XEmbedObjectFactory.hpp>
  35 #include <com/sun/star/embed/ElementModes.hpp>
  36 #include <com/sun/star/embed/XEmbeddedObject.hpp>
  37 #include <com/sun/star/embed/XEmbedPersist.hpp>
  38 #include <com/sun/star/embed/EntryInitModes.hpp>
  39 #include <com/sun/star/embed/EmbedStates.hpp>
  40 #include <com/sun/star/embed/Aspects.hpp>
  41 #include <com/sun/star/beans/XPropertySet.hpp>
  42 #include <tools/debug.hxx>
  43 #include <unotools/streamwrap.hxx>
  44 #include <unotools/tempfile.hxx>
  45
  46 #include <svtools/embedhlp.hxx>
  47 #include <unotools/ucbstreamhelper.hxx>
  48 #include <comphelper/processfactory.hxx>
  49 #include <comphelper/storagehelper.hxx>
  50 #include <comphelper/embeddedobjectcontainer.hxx>
  51
  52 #include <sot/clsids.hxx>
  53 #include <map>
  54 #include "svx/xmleohlp.hxx"
  55
  56 // -----------
  57 // - Defines -
  58 // -----------
  59
  60 using namespace ::osl;
  61 using namespace ::cppu;
  62 using namespace ::utl;
  63 using namespace ::com::sun::star;
  64 using namespace ::com::sun::star::document;
  65 using namespace ::com::sun::star::uno;
  66 using namespace ::com::sun::star::container;
  67 using namespace ::com::sun::star::io;
  68 using namespace ::com::sun::star::lang;
  69
  70 #define XML_CONTAINERSTORAGE_NAME_60        "Pictures"
  71 #define XML_CONTAINERSTORAGE_NAME       "ObjectReplacements"
  72 #define XML_EMBEDDEDOBJECT_URL_BASE     "vnd.sun.star.EmbeddedObject:"
  73 #define XML_EMBEDDEDOBJECTGRAPHIC_URL_BASE      "vnd.sun.star.GraphicObject:"
  74
  75 // -----------------------------------------------------------------------------
  76
  77 // -----------------------------------------------------------------------------
  78
  79 class OutputStorageWrapper_Impl : public ::cppu::WeakImplHelper1<XOutputStream>
  80 {
  81     ::osl::Mutex    maMutex;
  82     Reference < XOutputStream > xOut;
  83     TempFile aTempFile;
  84     sal_Bool bStreamClosed : 1;
  85     SvStream* pStream;
  86
  87 public:
  88     OutputStorageWrapper_Impl();
  89     virtual ~OutputStorageWrapper_Impl();
  90
  91 // stario::XOutputStream
  92     virtual void SAL_CALL writeBytes(const Sequence< sal_Int8 >& aData) throw(NotConnectedException, BufferSizeExceededException, RuntimeException);
  93     virtual void SAL_CALL flush() throw(NotConnectedException, BufferSizeExceededException, RuntimeException);
  94     virtual void SAL_CALL closeOutput() throw(NotConnectedException, BufferSizeExceededException, RuntimeException);
  95
  96     SvStream*   GetStream();
  97 };
  98
  99 OutputStorageWrapper_Impl::OutputStorageWrapper_Impl()
 100     : bStreamClosed( sal_False )
 101     , pStream(0)
 102 {
 103     aTempFile.EnableKillingFile();
 104     pStream = aTempFile.GetStream( STREAM_READWRITE );
 105     xOut = new OOutputStreamWrapper( *pStream );
 106 }
 107
 108 OutputStorageWrapper_Impl::~OutputStorageWrapper_Impl()
 109 {
 110 }
 111
 112 SvStream *OutputStorageWrapper_Impl::GetStream()
 113 {
 114     if( bStreamClosed )
 115         return pStream;
 116     return NULL;
 117 }
 118
 119 void SAL_CALL OutputStorageWrapper_Impl::writeBytes(
 120         const Sequence< sal_Int8 >& aData)
 121     throw(NotConnectedException, BufferSizeExceededException, RuntimeException)
 122 {
 123     MutexGuard          aGuard( maMutex );
 124     xOut->writeBytes( aData );
 125 }
 126
 127 void SAL_CALL OutputStorageWrapper_Impl::flush()
 128     throw(NotConnectedException, BufferSizeExceededException, RuntimeException)
 129 {
 130     MutexGuard          aGuard( maMutex );
 131     xOut->flush();
 132 }
 133
 134 void SAL_CALL OutputStorageWrapper_Impl::closeOutput()
 135     throw(NotConnectedException, BufferSizeExceededException, RuntimeException)
 136 {
 137     MutexGuard          aGuard( maMutex );
 138     xOut->closeOutput();
 139     bStreamClosed = sal_True;
 140 }
 141
 142 // -----------------------------------------------------------------------------
 143
 144 struct OUStringLess
 145 {
 146     bool operator() ( const ::rtl::OUString& r1, const ::rtl::OUString& r2 ) const
 147     {
 148         return (r1 < r2) != sal_False;
 149     }
 150 };
 151
 152 // -----------------------------------------------------------------------------
 153
 154 // -----------------------------
 155 // - SvXMLEmbeddedObjectHelper -
 156 // -----------------------------
 157 DBG_NAME(SvXMLEmbeddedObjectHelper)
 158 SvXMLEmbeddedObjectHelper::SvXMLEmbeddedObjectHelper() :
 159     WeakComponentImplHelper2< XEmbeddedObjectResolver, XNameAccess >( maMutex ),
 160     maReplacementGraphicsContainerStorageName( RTL_CONSTASCII_USTRINGPARAM(XML_CONTAINERSTORAGE_NAME) ),
 161     maReplacementGraphicsContainerStorageName60( RTL_CONSTASCII_USTRINGPARAM(XML_CONTAINERSTORAGE_NAME_60) ),
 162     mpDocPersist( 0 ),
 163     meCreateMode( EMBEDDEDOBJECTHELPER_MODE_READ ),
 164     mpStreamMap( 0 )
 165 {
 166     DBG_CTOR(SvXMLEmbeddedObjectHelper,NULL);
 167 }
 168
 169 SvXMLEmbeddedObjectHelper::SvXMLEmbeddedObjectHelper( ::comphelper::IEmbeddedHelper& rDocPersist, SvXMLEmbeddedObjectHelperMode eCreateMode ) :
 170     WeakComponentImplHelper2< XEmbeddedObjectResolver, XNameAccess >( maMutex ),
 171     maReplacementGraphicsContainerStorageName( RTL_CONSTASCII_USTRINGPARAM(XML_CONTAINERSTORAGE_NAME) ),
 172     maReplacementGraphicsContainerStorageName60( RTL_CONSTASCII_USTRINGPARAM(XML_CONTAINERSTORAGE_NAME_60) ),
 173     mpDocPersist( 0 ),
 174     meCreateMode( EMBEDDEDOBJECTHELPER_MODE_READ ),
 175     mpStreamMap( 0 )
 176 {
 177     DBG_CTOR(SvXMLEmbeddedObjectHelper,NULL);
 178     Init( 0, rDocPersist, eCreateMode );
 179 }
 180
 181
 182 // -----------------------------------------------------------------------------
 183
 184 SvXMLEmbeddedObjectHelper::~SvXMLEmbeddedObjectHelper()
 185 {
 186     DBG_DTOR(SvXMLEmbeddedObjectHelper,NULL);
 187     if( mpStreamMap )
 188     {
 189         SvXMLEmbeddedObjectHelper_Impl::iterator aIter = mpStreamMap->begin();
 190         SvXMLEmbeddedObjectHelper_Impl::iterator aEnd = mpStreamMap->end();
 191         for( ; aIter != aEnd; ++aIter )
 192         {
 193             if( aIter->second )
 194             {
 195                 aIter->second->release();
 196                 aIter->second = 0;
 197             }
 198         }
 199         delete mpStreamMap;
 200     }
 201 }
 202
 203 // -----------------------------------------------------------------------------
 204
 205 void SAL_CALL SvXMLEmbeddedObjectHelper::disposing()
 206 {
 207     Flush();
 208 }
 209
 210
 211 void SvXMLEmbeddedObjectHelper::splitObjectURL(::rtl::OUString aURLNoPar,
 212     ::rtl::OUString& rContainerStorageName,
 213     ::rtl::OUString& rObjectStorageName)
 214 {
 215     DBG_ASSERT( '#' != aURLNoPar[0], "invalid object URL" );
 216
 217     sal_Int32 _nPos = aURLNoPar.lastIndexOf( '/' );
 218     if( -1 == _nPos )
 219     {
 220         rContainerStorageName = ::rtl::OUString();
 221         rObjectStorageName = aURLNoPar;
 222     }
 223     else
 224     {
 225         //eliminate 'superfluous' slashes at start and end
 226         //#i103076# load objects with all allowed xlink:href syntaxes
 227         {
 228             //eliminate './' at start
 229             sal_Int32 nStart = 0;
 230             sal_Int32 nCount = aURLNoPar.getLength();
 231             if( 0 == aURLNoPar.compareToAscii( "./", 2 ) )
 232             {
 233                 nStart = 2;
 234                 nCount -= 2;
 235             }
 236
 237             //eliminate '/' at end
 238             sal_Int32 nEnd = aURLNoPar.lastIndexOf( '/' );
 239             if( nEnd == aURLNoPar.getLength()-1 && nEnd != (nStart-1) )
 240                 nCount--;
 241
 242             aURLNoPar = aURLNoPar.copy( nStart, nCount );
 243         }
 244
 245         _nPos = aURLNoPar.lastIndexOf( '/' );
 246         if( _nPos >= 0 )
 247             rContainerStorageName = aURLNoPar.copy( 0, _nPos );
 248         rObjectStorageName = aURLNoPar.copy( _nPos+1 );
 249     }
 250 }
 251
 252 // -----------------------------------------------------------------------------
 253
 254 sal_Bool SvXMLEmbeddedObjectHelper::ImplGetStorageNames(
 255         const ::rtl::OUString& rURLStr,
 256         ::rtl::OUString& rContainerStorageName,
 257         ::rtl::OUString& rObjectStorageName,
 258         sal_Bool bInternalToExternal,
 259         sal_Bool *pGraphicRepl,
 260         sal_Bool *pOasisFormat ) const
 261 {
 262     // internal URL: vnd.sun.star.EmbeddedObject:<object-name>
 263     //           or: vnd.sun.star.EmbeddedObject:<path>/<object-name>
 264     // internal replacement images:
 265     //               vnd.sun.star.EmbeddedObjectGraphic:<object-name>
 266     //           or: vnd.sun.star.EmbeddedObjectGraphic:<path>/<object-name>
 267     // external URL: ./<path>/<object-name>
 268     //           or: <path>/<object-name>
 269     //           or: <object-name>
 270     // currently, path may only consist of a single directory name
 271     // it is also possible to have additional arguments at the end of URL: <main URL>[?<name>=<value>[,<name>=<value>]*]
 272
 273     if( pGraphicRepl )
 274         *pGraphicRepl = sal_False;
 275
 276     if( pOasisFormat )
 277         *pOasisFormat = sal_True; // the default value
 278
 279     if( rURLStr.isEmpty() )
 280         return sal_False;
 281
 282     // get rid of arguments
 283     sal_Int32 nPos = rURLStr.indexOf( '?' );
 284     ::rtl::OUString aURLNoPar;
 285     if ( nPos == -1 )
 286         aURLNoPar = rURLStr;
 287     else
 288     {
 289         aURLNoPar = rURLStr.copy( 0, nPos );
 290
 291         // check the arguments
 292         nPos++;
 293         while( nPos >= 0 && nPos < rURLStr.getLength() )
 294         {
 295             ::rtl::OUString aToken = rURLStr.getToken( 0, ',', nPos );
 296             if ( aToken.equalsIgnoreAsciiCase( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "oasis=false" ) ) ) )
 297             {
 298                 if ( pOasisFormat )
 299                     *pOasisFormat = sal_False;
 300                 break;
 301             }
 302             else
 303             {
 304                 DBG_ASSERT( sal_False, "invalid arguments was found in URL!" );
 305             }
 306         }
 307     }
 308
 309     if( bInternalToExternal )
 310     {
 311         nPos = aURLNoPar.indexOf( ':' );
 312         if( -1 == nPos )
 313             return sal_False;
 314         sal_Bool bObjUrl =
 315             0 == aURLNoPar.compareToAscii( XML_EMBEDDEDOBJECT_URL_BASE,
 316                                  sizeof( XML_EMBEDDEDOBJECT_URL_BASE ) -1 );
 317         sal_Bool bGrUrl = !bObjUrl &&
 318               0 == aURLNoPar.compareToAscii( XML_EMBEDDEDOBJECTGRAPHIC_URL_BASE,
 319                          sizeof( XML_EMBEDDEDOBJECTGRAPHIC_URL_BASE ) -1 );
 320         if( !(bObjUrl || bGrUrl) )
 321             return sal_False;
 322
 323         sal_Int32 nPathStart = nPos + 1;
 324         nPos = aURLNoPar.lastIndexOf( '/' );
 325         if( -1 == nPos )
 326         {
 327             rContainerStorageName = ::rtl::OUString();
 328             rObjectStorageName = aURLNoPar.copy( nPathStart );
 329         }
 330         else if( nPos > nPathStart )
 331         {
 332             rContainerStorageName = aURLNoPar.copy( nPathStart, nPos-nPathStart);
 333             rObjectStorageName = aURLNoPar.copy( nPos+1 );
 334         }
 335         else
 336             return sal_False;
 337
 338         if( bGrUrl )
 339         {
 340             sal_Bool bOASIS = mxRootStorage.is() &&
 341                 ( SotStorage::GetVersion( mxRootStorage ) > SOFFICE_FILEFORMAT_60 );
 342             rContainerStorageName = bOASIS
 343                     ? maReplacementGraphicsContainerStorageName
 344                     : maReplacementGraphicsContainerStorageName60;
 345
 346             if( pGraphicRepl )
 347                 *pGraphicRepl = sal_True;
 348         }
 349
 350
 351     }
 352     else
 353     {
 354         splitObjectURL(aURLNoPar, rContainerStorageName, rObjectStorageName);
 355     }
 356
 357     if( -1 != rContainerStorageName.indexOf( '/' ) )
 358     {
 359         OSL_FAIL( "SvXMLEmbeddedObjectHelper: invalid path name" );
 360         return sal_False;
 361     }
 362
 363     return sal_True;
 364 }
 365
 366
 367 // -----------------------------------------------------------------------------
 368
 369 uno::Reference < embed::XStorage > SvXMLEmbeddedObjectHelper::ImplGetContainerStorage(
 370         const ::rtl::OUString& rStorageName )
 371 {
 372     DBG_ASSERT( -1 == rStorageName.indexOf( '/' ) &&
 373                 -1 == rStorageName.indexOf( '\\' ),
 374                 "nested embedded storages aren't supported" );
 375     if( !mxContainerStorage.is() ||
 376         ( rStorageName != maCurContainerStorageName ) )
 377     {
 378         if( mxContainerStorage.is() &&
 379             !maCurContainerStorageName.isEmpty() &&
 380             EMBEDDEDOBJECTHELPER_MODE_WRITE == meCreateMode )
 381         {
 382             uno::Reference < embed::XTransactedObject > xTrans( mxContainerStorage, uno::UNO_QUERY );
 383             if ( xTrans.is() )
 384                 xTrans->commit();
 385         }
 386
 387         if( !rStorageName.isEmpty() && mxRootStorage.is() )
 388         {
 389             sal_Int32 nMode = EMBEDDEDOBJECTHELPER_MODE_WRITE == meCreateMode
 390                                     ? ::embed::ElementModes::READWRITE
 391                                     : ::embed::ElementModes::READ;
 392             mxContainerStorage = mxRootStorage->openStorageElement( rStorageName,
 393                                                              nMode );
 394         }
 395         else
 396         {
 397             mxContainerStorage = mxRootStorage;
 398         }
 399         maCurContainerStorageName = rStorageName;
 400     }
 401
 402     return mxContainerStorage;
 403 }
 404
 405 // -----------------------------------------------------------------------------
 406
 407 sal_Bool SvXMLEmbeddedObjectHelper::ImplReadObject(
 408         const ::rtl::OUString& rContainerStorageName,
 409         ::rtl::OUString& rObjName,
 410         const SvGlobalName *pClassId,
 411         SvStream* pTemp )
 412 {
 413     (void)pClassId;
 414
 415     uno::Reference < embed::XStorage > xDocStor( mpDocPersist->getStorage() );
 416     uno::Reference < embed::XStorage > xCntnrStor( ImplGetContainerStorage( rContainerStorageName ) );
 417
 418     if( !xCntnrStor.is() && !pTemp )
 419         return sal_False;
 420
 421     String aSrcObjName( rObjName );
 422     comphelper::EmbeddedObjectContainer& rContainer = mpDocPersist->getEmbeddedObjectContainer();
 423
 424     // Is the object name unique?
 425     // if the object is already instantiated by GetEmbeddedObject
 426     // that means that the duplication is being loaded
 427     sal_Bool bDuplicate = rContainer.HasInstantiatedEmbeddedObject( rObjName );
 428     DBG_ASSERT( !bDuplicate, "An object in the document is referenced twice!" );
 429
 430     if( xDocStor != xCntnrStor || pTemp || bDuplicate )
 431     {
 432         // TODO/LATER: make this alltogether a method in the EmbeddedObjectContainer
 433
 434         // create a unique name for the duplicate object
 435         if( bDuplicate )
 436             rObjName = rContainer.CreateUniqueObjectName();
 437
 438         if( pTemp )
 439         {
 440             try
 441             {
 442                 pTemp->Seek( 0 );
 443                 uno::Reference < io::XStream > xStm = xDocStor->openStreamElement( rObjName,
 444                         embed::ElementModes::READWRITE | embed::ElementModes::TRUNCATE );
 445                 SvStream* pStream = ::utl::UcbStreamHelper::CreateStream( xStm );
 446                 *pTemp >> *pStream;
 447                 delete pStream;
 448
 449                 // TODO/LATER: what to do when other types of objects are based on substream persistence?
 450                 // This is an ole object
 451                 uno::Reference< beans::XPropertySet > xProps( xStm, uno::UNO_QUERY_THROW );
 452                 xProps->setPropertyValue(
 453                     ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "MediaType" ) ),
 454                     uno::makeAny( ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "application/vnd.sun.star.oleobject" ) ) ) );
 455
 456                 xStm->getOutputStream()->closeOutput();
 457             }
 458             catch ( uno::Exception& )
 459             {
 460                 return sal_False;
 461             }
 462         }
 463         else
 464         {
 465             try
 466             {
 467                 xCntnrStor->copyElementTo( aSrcObjName, xDocStor, rObjName );
 468             }
 469             catch ( uno::Exception& )
 470             {
 471                 return sal_False;
 472             }
 473         }
 474     }
 475
 476     // make object known to the container
 477     // TODO/LATER: could be done a little bit more efficient!
 478     ::rtl::OUString aName( rObjName );
 479
 480     // TODO/LATER: The provided pClassId is ignored for now.
 481     //             The stream contains OLE storage internally and this storage already has a class id specifying the
 482     //             server that was used to create the object. pClassId could be used to specify the server that should
 483     //             be used for the next opening, but this information seems to be out of the file format responsibility
 484     //             area.
 485     rContainer.GetEmbeddedObject( aName );
 486
 487     return sal_True;
 488 }
 489
 490 // -----------------------------------------------------------------------------
 491
 492 ::rtl::OUString SvXMLEmbeddedObjectHelper::ImplInsertEmbeddedObjectURL(
 493         const ::rtl::OUString& rURLStr )
 494 {
 495     ::rtl::OUString sRetURL;
 496
 497     ::rtl::OUString aContainerStorageName, aObjectStorageName;
 498     if( !ImplGetStorageNames( rURLStr, aContainerStorageName,
 499                               aObjectStorageName,
 500                               EMBEDDEDOBJECTHELPER_MODE_WRITE == meCreateMode ) )
 501         return sRetURL;
 502
 503     if( EMBEDDEDOBJECTHELPER_MODE_READ == meCreateMode )
 504     {
 505         OutputStorageWrapper_Impl *pOut = 0;
 506         SvXMLEmbeddedObjectHelper_Impl::iterator aIter;
 507
 508         if( mpStreamMap )
 509         {
 510             aIter = mpStreamMap->find( rURLStr );
 511             if( aIter != mpStreamMap->end() && aIter->second )
 512                 pOut = aIter->second;
 513         }
 514
 515         SvGlobalName aClassId, *pClassId = 0;
 516         sal_Int32 nPos = aObjectStorageName.lastIndexOf( '!' );
 517         if( -1 != nPos && aClassId.MakeId( aObjectStorageName.copy( nPos+1 ) ) )
 518         {
 519             aObjectStorageName = aObjectStorageName.copy( 0, nPos );
 520             pClassId = &aClassId;
 521         }
 522
 523         ImplReadObject( aContainerStorageName, aObjectStorageName, pClassId, pOut ? pOut->GetStream() : 0 );
 524         sRetURL = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM(XML_EMBEDDEDOBJECT_URL_BASE) );
 525         sRetURL += aObjectStorageName;
 526
 527         if( pOut )
 528         {
 529             mpStreamMap->erase( aIter );
 530             pOut->release();
 531         }
 532     }
 533     else
 534     {
 535         // Objects are written using ::comphelper::IEmbeddedHelper::SaveAs
 536         sRetURL = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM("./") );
 537         if( !aContainerStorageName.isEmpty() )
 538         {
 539             sRetURL += aContainerStorageName;
 540             sRetURL += ::rtl::OUString( '/' );
 541         }
 542         sRetURL += aObjectStorageName;
 543     }
 544
 545     return sRetURL;
 546 }
 547
 548 // -----------------------------------------------------------------------------
 549
 550 uno::Reference< io::XInputStream > SvXMLEmbeddedObjectHelper::ImplGetReplacementImage(
 551                                             const uno::Reference< embed::XEmbeddedObject >& xObj )
 552 {
 553     uno::Reference< io::XInputStream > xStream;
 554
 555     if( xObj.is() )
 556     {
 557         try
 558         {
 559             sal_Bool bSwitchBackToLoaded = sal_False;
 560             sal_Int32 nCurState = xObj->getCurrentState();
 561             if ( nCurState == embed::EmbedStates::LOADED || nCurState == embed::EmbedStates::RUNNING )
 562             {
 563                 // means that the object is not active
 564                 // copy replacement image from old to new container
 565                 ::rtl::OUString aMediaType;
 566                 xStream = mpDocPersist->getEmbeddedObjectContainer().GetGraphicStream( xObj, &aMediaType );
 567             }
 568
 569             if ( !xStream.is() )
 570             {
 571                 // the image must be regenerated
 572                 // TODO/LATER: another aspect could be used
 573                 if ( nCurState == embed::EmbedStates::LOADED )
 574                     bSwitchBackToLoaded = sal_True;
 575
 576                 ::rtl::OUString aMediaType;
 577                 xStream = svt::EmbeddedObjectRef::GetGraphicReplacementStream(
 578                                                     embed::Aspects::MSOLE_CONTENT,
 579                                                     xObj,
 580                                                     &aMediaType );
 581             }
 582
 583             if ( bSwitchBackToLoaded )
 584                 // switch back to loaded state; that way we have a minimum cache confusion
 585                 xObj->changeState( embed::EmbedStates::LOADED );
 586         }
 587         catch( uno::Exception& )
 588         {}
 589     }
 590
 591     return xStream;
 592 }
 593
 594 // -----------------------------------------------------------------------------
 595
 596 void SvXMLEmbeddedObjectHelper::Init(
 597         const uno::Reference < embed::XStorage >& rRootStorage,
 598         ::comphelper::IEmbeddedHelper& rPersist,
 599         SvXMLEmbeddedObjectHelperMode eCreateMode )
 600 {
 601     mxRootStorage = rRootStorage;
 602     mpDocPersist = &rPersist;
 603     meCreateMode = eCreateMode;
 604 }
 605
 606 // -----------------------------------------------------------------------------
 607
 608 SvXMLEmbeddedObjectHelper* SvXMLEmbeddedObjectHelper::Create(
 609         const uno::Reference < embed::XStorage >& rRootStorage,
 610         ::comphelper::IEmbeddedHelper& rDocPersist,
 611         SvXMLEmbeddedObjectHelperMode eCreateMode,
 612         sal_Bool bDirect )
 613 {
 614     (void)bDirect;
 615
 616     SvXMLEmbeddedObjectHelper* pThis = new SvXMLEmbeddedObjectHelper;
 617
 618     pThis->acquire();
 619     pThis->Init( rRootStorage, rDocPersist, eCreateMode );
 620
 621     return pThis;
 622 }
 623
 624 SvXMLEmbeddedObjectHelper* SvXMLEmbeddedObjectHelper::Create(
 625         ::comphelper::IEmbeddedHelper& rDocPersist,
 626         SvXMLEmbeddedObjectHelperMode eCreateMode )
 627 {
 628     SvXMLEmbeddedObjectHelper* pThis = new SvXMLEmbeddedObjectHelper;
 629
 630     pThis->acquire();
 631     pThis->Init( 0, rDocPersist, eCreateMode );
 632
 633     return pThis;
 634 }
 635
 636 // -----------------------------------------------------------------------------
 637
 638 void SvXMLEmbeddedObjectHelper::Destroy(
 639         SvXMLEmbeddedObjectHelper* pSvXMLEmbeddedObjectHelper )
 640 {
 641     if( pSvXMLEmbeddedObjectHelper )
 642     {
 643         pSvXMLEmbeddedObjectHelper->dispose();
 644         pSvXMLEmbeddedObjectHelper->release();
 645     }
 646 }
 647
 648 // -----------------------------------------------------------------------------
 649
 650 void SvXMLEmbeddedObjectHelper::Flush()
 651 {
 652     if( mxTempStorage.is() )
 653     {
 654         Reference < XComponent > xComp( mxTempStorage, UNO_QUERY );
 655         xComp->dispose();
 656     }
 657 }
 658
 659 // XGraphicObjectResolver: alien objects!
 660 ::rtl::OUString SAL_CALL SvXMLEmbeddedObjectHelper::resolveEmbeddedObjectURL( const ::rtl::OUString& aURL )
 661     throw(RuntimeException)
 662 {
 663     MutexGuard          aGuard( maMutex );
 664
 665     return ImplInsertEmbeddedObjectURL( aURL );
 666 }
 667
 668 // XNameAccess: alien objects!
 669 Any SAL_CALL SvXMLEmbeddedObjectHelper::getByName(
 670         const ::rtl::OUString& rURLStr )
 671     throw (NoSuchElementException, WrappedTargetException, RuntimeException)
 672 {
 673     MutexGuard          aGuard( maMutex );
 674     Any aRet;
 675     if( EMBEDDEDOBJECTHELPER_MODE_READ == meCreateMode )
 676     {
 677         Reference < XOutputStream > xStrm;
 678         if( mpStreamMap )
 679         {
 680             SvXMLEmbeddedObjectHelper_Impl::iterator aIter =
 681                 mpStreamMap->find( rURLStr );
 682             if( aIter != mpStreamMap->end() && aIter->second )
 683                 xStrm = aIter->second;
 684         }
 685         if( !xStrm.is() )
 686         {
 687             OutputStorageWrapper_Impl *pOut = new OutputStorageWrapper_Impl;
 688             pOut->acquire();
 689             if( !mpStreamMap )
 690                 mpStreamMap = new SvXMLEmbeddedObjectHelper_Impl;
 691             (*mpStreamMap)[rURLStr] = pOut;
 692             xStrm = pOut;
 693         }
 694
 695         aRet <<= xStrm;
 696     }
 697     else
 698     {
 699         sal_Bool bGraphicRepl = sal_False;
 700         sal_Bool bOasisFormat = sal_True;
 701         Reference < XInputStream > xStrm;
 702         ::rtl::OUString aContainerStorageName, aObjectStorageName;
 703         if( ImplGetStorageNames( rURLStr, aContainerStorageName,
 704                                  aObjectStorageName,
 705                                  sal_True,
 706                                     &bGraphicRepl,
 707                                  &bOasisFormat ) )
 708         {
 709             try
 710             {
 711                 comphelper::EmbeddedObjectContainer& rContainer =
 712                         mpDocPersist->getEmbeddedObjectContainer();
 713
 714                 Reference < embed::XEmbeddedObject > xObj = rContainer.GetEmbeddedObject( aObjectStorageName );
 715                 DBG_ASSERT( xObj.is(), "Didn't get object" );
 716
 717                 if( xObj.is() )
 718                 {
 719                     if( bGraphicRepl )
 720                     {
 721                         xStrm = ImplGetReplacementImage( xObj );
 722                     }
 723                     else
 724                     {
 725                         Reference < embed::XEmbedPersist > xPersist( xObj, UNO_QUERY );
 726                         if( xPersist.is() )
 727                         {
 728                             if( !mxTempStorage.is() )
 729                                 mxTempStorage =
 730                                     comphelper::OStorageHelper::GetTemporaryStorage();
 731                             Sequence < beans::PropertyValue > aDummy( 0 ), aEmbDescr( 1 );
 732                             aEmbDescr[0].Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "StoreVisualReplacement" ) );
 733                                aEmbDescr[0].Value <<= (sal_Bool)(!bOasisFormat);
 734                             if ( !bOasisFormat )
 735                             {
 736                                 uno::Reference< io::XInputStream > xGrInStream = ImplGetReplacementImage( xObj );
 737                                 if ( xGrInStream.is() )
 738                                 {
 739                                     aEmbDescr.realloc( 2 );
 740                                     aEmbDescr[1].Name = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "VisualReplacement" ) );
 741                                     aEmbDescr[1].Value <<= xGrInStream;
 742                                 }
 743                             }
 744
 745                             xPersist->storeToEntry( mxTempStorage, aObjectStorageName,
 746                                                     aDummy, aEmbDescr );
 747                             Reference < io::XStream > xStream =
 748                                 mxTempStorage->openStreamElement(
 749                                                         aObjectStorageName,
 750                                                         embed::ElementModes::READ);
 751                             if( xStream.is() )
 752                                 xStrm = xStream->getInputStream();
 753                         }
 754                     }
 755                 }
 756             }
 757             catch ( uno::Exception& )
 758             {
 759             }
 760         }
 761
 762         aRet <<= xStrm;
 763     }
 764
 765     return aRet;
 766 }
 767
 768 Sequence< ::rtl::OUString > SAL_CALL SvXMLEmbeddedObjectHelper::getElementNames()
 769     throw (RuntimeException)
 770 {
 771     MutexGuard          aGuard( maMutex );
 772     return Sequence< ::rtl::OUString >(0);
 773 }
 774
 775 sal_Bool SAL_CALL SvXMLEmbeddedObjectHelper::hasByName( const ::rtl::OUString& rURLStr )
 776     throw (RuntimeException)
 777 {
 778     MutexGuard          aGuard( maMutex );
 779     if( EMBEDDEDOBJECTHELPER_MODE_READ == meCreateMode )
 780     {
 781         return sal_True;
 782     }
 783     else
 784     {
 785         ::rtl::OUString aContainerStorageName, aObjectStorageName;
 786         if( !ImplGetStorageNames( rURLStr, aContainerStorageName,
 787                                   aObjectStorageName,
 788                                   sal_True ) )
 789             return sal_False;
 790
 791         comphelper::EmbeddedObjectContainer& rContainer = mpDocPersist->getEmbeddedObjectContainer();
 792         return !aObjectStorageName.isEmpty() &&
 793                rContainer.HasEmbeddedObject( aObjectStorageName );
 794     }
 795 }
 796
 797 // XNameAccess
 798 Type SAL_CALL SvXMLEmbeddedObjectHelper::getElementType()
 799     throw (RuntimeException)
 800 {
 801     MutexGuard          aGuard( maMutex );
 802     if( EMBEDDEDOBJECTHELPER_MODE_READ == meCreateMode )
 803         return ::getCppuType((const Reference<XOutputStream>*)0);
 804     else
 805         return ::getCppuType((const Reference<XInputStream>*)0);
 806 }
 807
 808 sal_Bool SAL_CALL SvXMLEmbeddedObjectHelper::hasElements()
 809     throw (RuntimeException)
 810 {
 811     MutexGuard          aGuard( maMutex );
 812     if( EMBEDDEDOBJECTHELPER_MODE_READ == meCreateMode )
 813     {
 814         return sal_True;
 815     }
 816     else
 817     {
 818         comphelper::EmbeddedObjectContainer& rContainer = mpDocPersist->getEmbeddedObjectContainer();
 819         return rContainer.HasEmbeddedObjects();
 820     }
 821 }
 822
 823 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */