svx/source/xml/xmleohlp.cxx

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