xref: /AOO41X/main/sfx2/source/appl/fileobj.cxx (revision 54628ca40d27d15cc98fe861da7fff7e60c2f7d6)
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3  * Licensed to the Apache Software Foundation (ASF) under one
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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sfx2.hxx"
26 
27 #include <vcl/wrkwin.hxx>
28 #include <vcl/msgbox.hxx>
29 #include <tools/urlobj.hxx>
30 #include <tools/stream.hxx>
31 #include <sot/formats.hxx>
32 #include <svtools/filter.hxx>
33 #include <sfx2/lnkbase.hxx>
34 #include <sfx2/app.hxx>
35 #include <sfx2/progress.hxx>
36 #include <sfx2/docfilt.hxx>
37 #include <sfx2/filedlghelper.hxx>
38 #include <sot/exchange.hxx>
39 #include <com/sun/star/uno/Any.hxx>
40 #include <com/sun/star/uno/Sequence.hxx>
41 #include <sfx2/docfac.hxx>
42 #include <com/sun/star/document/XTypeDetection.hpp>
43 #include <comphelper/mediadescriptor.hxx>
44 #include <comphelper/processfactory.hxx>
45 #include <sfx2/linkmgr.hxx>
46 #include <sfx2/opengrf.hxx>
47 #include "sfx2/sfxresid.hxx"
48 #include "fileobj.hxx"
49 #include "app.hrc"
50 
51 namespace css = ::com::sun::star;
52 
53 #define FILETYPE_TEXT       1
54 #define FILETYPE_GRF        2
55 #define FILETYPE_OBJECT     3
56 
57 struct Impl_DownLoadData
58 {
59     Graphic aGrf;
60     Timer aTimer;
61 
62     Impl_DownLoadData( const Link& rLink )
63     {
64         aTimer.SetTimeout( 100 );
65         aTimer.SetTimeoutHdl( rLink  );
66         aGrf.SetDefaultType();
67     }
68     ~Impl_DownLoadData()
69     {
70         aTimer.Stop();
71     }
72 };
73 
74 // --------------------------------------------------------------------------
75 
76 
77 SvFileObject::SvFileObject() :
78     pDownLoadData( NULL ), pOldParent( NULL ), nType( FILETYPE_TEXT )
79 {
80     bLoadAgain = sal_True;
81     bSynchron = bLoadError = bWaitForData = bDataReady = bNativFormat =
82     bClearMedium = bStateChangeCalled = bInCallDownLoad = sal_False;
83 }
84 
85 
86 SvFileObject::~SvFileObject()
87 {
88     if ( xMed.Is() )
89     {
90         xMed->SetDataAvailableLink( Link() );
91         xMed->SetDoneLink( Link() );
92         xMed.Clear();
93     }
94     delete pDownLoadData;
95 }
96 
97 
98 sal_Bool SvFileObject::GetData( ::com::sun::star::uno::Any & rData,
99                                 const String & rMimeType,
100                                 sal_Bool bGetSynchron )
101 {
102     sal_uIntPtr nFmt = SotExchange::GetFormatStringId( rMimeType );
103     switch( nType )
104     {
105     case FILETYPE_TEXT:
106         if( FORMAT_FILE == nFmt )
107         {
108             // das Medium muss in der Applikation geoffnet werden, um die
109             // relativen Datei Links aufzuloesen!!!! Wird ueber den
110             // LinkManager und damit von dessen Storage erledigt.
111             rData <<= rtl::OUString( sFileNm );
112         }
113         break;
114 
115     case FILETYPE_GRF:
116         if( !bLoadError )
117         {
118             SfxMediumRef xTmpMed;
119 
120             if( FORMAT_GDIMETAFILE == nFmt || FORMAT_BITMAP == nFmt ||
121                 SOT_FORMATSTR_ID_SVXB == nFmt )
122             {
123                 Graphic aGrf;
124 
125                 //JP 15.07.98: Bug 52959
126                 //      falls das Nativformat doch erwuenscht ist, muss am
127                 //      Ende das Flag zurueckgesetzt werden.
128 // wird einzig und allein im sw/ndgrf.cxx benutzt, wenn der Link vom
129 // GraphicNode entfernt wird.
130                 sal_Bool bOldNativFormat = bNativFormat;
131 //!!??              bNativFormat = 0 != (ASPECT_ICON & pSvData->GetAspect());
132 
133                 // falls gedruckt werden soll, warten wir bis die
134                 // Daten vorhanden sind
135                 if( bGetSynchron )
136                 {
137                     // testhalber mal ein LoadFile rufen um das nach-
138                     // laden ueberahaupt anzustossen
139                     if( !xMed.Is() )
140                         LoadFile_Impl();
141 
142                     if( !bInCallDownLoad )
143                     {
144                         xTmpMed = xMed;
145                         while( bWaitForData )
146                             Application::Reschedule();
147 
148                         xMed = xTmpMed;
149                         bClearMedium = sal_True;
150                     }
151                 }
152 
153                 if( pDownLoadData ||
154                     ( !bWaitForData && ( xMed.Is() ||       // wurde als URL geladen
155                         ( bSynchron && LoadFile_Impl() && xMed.Is() ) )) )
156                 {
157                     // falls
158 
159                     // falls es uebers Internet gesogen wurde, nicht
160                     // wieder versuchen
161                     if( !bGetSynchron )
162                         bLoadAgain = !xMed->IsRemote();
163                     bLoadError = !GetGraphic_Impl( aGrf, xMed->GetInStream() );
164                 }
165                 else if( !LoadFile_Impl() ||
166                         !GetGraphic_Impl( aGrf, xMed.Is() ? xMed->GetInStream() : 0 ))
167                 {
168                     if( !xMed.Is() )
169                         break;
170                     aGrf.SetDefaultType();
171                 }
172 
173                 if( SOT_FORMATSTR_ID_SVXB != nFmt )
174                     nFmt = (bLoadError || GRAPHIC_BITMAP == aGrf.GetType())
175                                 ? FORMAT_BITMAP
176                                 : FORMAT_GDIMETAFILE;
177 
178                 SvMemoryStream aMemStm( 0, 65535 );
179                 switch ( nFmt )
180                 {
181                 case SOT_FORMATSTR_ID_SVXB:
182                     if( GRAPHIC_NONE != aGrf.GetType() )
183                     {
184                         aMemStm.SetVersion( SOFFICE_FILEFORMAT_50 );
185                         aMemStm << aGrf;
186                     }
187                     break;
188 
189                 case  FORMAT_BITMAP:
190                     if( !aGrf.GetBitmap().IsEmpty())
191                         aMemStm << aGrf.GetBitmap();
192                     break;
193 
194                 default:
195                     if( aGrf.GetGDIMetaFile().GetActionCount() )
196                     {
197                         GDIMetaFile aMeta( aGrf.GetGDIMetaFile() );
198                         aMeta.Write( aMemStm );
199                     }
200                 }
201                 rData <<= css::uno::Sequence< sal_Int8 >( (sal_Int8*) aMemStm.GetData(),
202                                         aMemStm.Seek( STREAM_SEEK_TO_END ) );
203 
204                 bNativFormat = bOldNativFormat;
205 
206                 // alles fertig?
207                 if( xMed.Is() && !bSynchron && bClearMedium )
208                 {
209                     xMed.Clear();
210                     bClearMedium = sal_False;
211                 }
212             }
213         }
214         break;
215     case FILETYPE_OBJECT:
216         // TODO/LATER: possibility to insert a new object
217         rData <<= rtl::OUString( sFileNm );
218         break;
219     }
220     return sal_True/*0 != aTypeList.Count()*/;
221 }
222 
223 
224 
225 
226 sal_Bool SvFileObject::Connect( sfx2::SvBaseLink* pLink )
227 {
228     if( !pLink || !pLink->GetLinkManager() )
229         return sal_False;
230 
231     // teste doch mal, ob nicht ein anderer Link mit der gleichen
232     // Verbindung schon existiert
233     pLink->GetLinkManager()->GetDisplayNames( pLink, 0, &sFileNm, 0, &sFilter );
234 
235     if( OBJECT_CLIENT_GRF == pLink->GetObjType() )
236     {
237         SfxObjectShellRef pShell = pLink->GetLinkManager()->GetPersist();
238         if( pShell.Is() )
239         {
240             if( pShell->IsAbortingImport() )
241                 return sal_False;
242 
243             if( pShell->GetMedium() )
244                 sReferer = pShell->GetMedium()->GetName();
245         }
246     }
247 
248     switch( pLink->GetObjType() )
249     {
250     case OBJECT_CLIENT_GRF:
251         nType = FILETYPE_GRF;
252         bSynchron = pLink->IsSynchron();
253         break;
254 
255     case OBJECT_CLIENT_FILE:
256         nType = FILETYPE_TEXT;
257         break;
258 
259     case OBJECT_CLIENT_OLE:
260         nType = FILETYPE_OBJECT;
261         // TODO/LATER: introduce own type to be used for exchanging
262         break;
263 
264     default:
265         return sal_False;
266     }
267 
268     SetUpdateTimeout( 0 );
269 
270     // und jetzt bei diesem oder gefundenem Pseudo-Object anmelden
271     AddDataAdvise( pLink, SotExchange::GetFormatMimeType( pLink->GetContentType()), 0 );
272     return sal_True;
273 }
274 
275 
276 sal_Bool SvFileObject::LoadFile_Impl()
277 {
278     // wir sind noch im Laden!!
279     if( bWaitForData || !bLoadAgain || xMed.Is() || pDownLoadData )
280         return sal_False;
281 
282     // z.Z. nur auf die aktuelle DocShell
283     xMed = new SfxMedium( sFileNm, STREAM_STD_READ, sal_True );
284     SvLinkSource::StreamToLoadFrom aStreamToLoadFrom =
285         getStreamToLoadFrom();
286     xMed->setStreamToLoadFrom(
287         aStreamToLoadFrom.m_xInputStreamToLoadFrom,
288         aStreamToLoadFrom.m_bIsReadOnly);
289     // setStreamToLoadFrom(0,0);
290     if( sReferer.Len() )
291         xMed->SetReferer( sReferer );
292 
293     if( !bSynchron )
294     {
295         bLoadAgain = bDataReady = bInNewData = sal_False;
296         bWaitForData = sal_True;
297 
298         SfxMediumRef xTmpMed = xMed;
299         xMed->SetDataAvailableLink( STATIC_LINK( this, SvFileObject, LoadGrfNewData_Impl ) );
300         bInCallDownLoad = sal_True;
301         xMed->DownLoad( STATIC_LINK( this, SvFileObject, LoadGrfReady_Impl ) );
302         bInCallDownLoad = sal_False;
303 
304         bClearMedium = !xMed.Is();
305         if( bClearMedium )
306             xMed = xTmpMed;     // falls gleich im DownLoad schon schluss ist
307         return bDataReady;
308     }
309 
310     bWaitForData = sal_True;
311     bDataReady = bInNewData = sal_False;
312     xMed->DownLoad();
313     bLoadAgain = !xMed->IsRemote();
314     bWaitForData = sal_False;
315 
316     // Grafik ist fertig, also DataChanged von der Statusaederung schicken:
317     SendStateChg_Impl( xMed->GetInStream() && xMed->GetInStream()->GetError()
318                         ? sfx2::LinkManager::STATE_LOAD_ERROR : sfx2::LinkManager::STATE_LOAD_OK );
319     return sal_True;
320 }
321 
322 
323 sal_Bool SvFileObject::GetGraphic_Impl( Graphic& rGrf, SvStream* pStream )
324 {
325     GraphicFilter* pGF = GraphicFilter::GetGraphicFilter();
326 
327     const sal_uInt16 nFilter = sFilter.Len() && pGF->GetImportFormatCount()
328                             ? pGF->GetImportFormatNumber( sFilter )
329                             : GRFILTER_FORMAT_DONTKNOW;
330 
331     String aEmptyStr;
332     int nRes;
333 
334     // vermeiden, dass ein native Link angelegt wird
335     if( ( !pStream || !pDownLoadData ) && !rGrf.IsLink() &&
336         !rGrf.GetContext() && !bNativFormat )
337         rGrf.SetLink( GfxLink() );
338 
339     if( !pStream )
340         nRes = xMed.Is() ? GRFILTER_OPENERROR
341                          : pGF->ImportGraphic( rGrf, INetURLObject(sFileNm),
342                             nFilter );
343     else if( !pDownLoadData )
344     {
345         pStream->Seek( STREAM_SEEK_TO_BEGIN );
346         nRes = pGF->ImportGraphic( rGrf, aEmptyStr, *pStream, nFilter );
347     }
348     else
349     {
350         nRes = pGF->ImportGraphic( pDownLoadData->aGrf, aEmptyStr,
351                                     *pStream, nFilter );
352 
353         if( pDownLoadData )
354         {
355             rGrf = pDownLoadData->aGrf;
356             if( GRAPHIC_NONE == rGrf.GetType() )
357                 rGrf.SetDefaultType();
358 
359 
360             if( !pDownLoadData->aGrf.GetContext() )
361             {
362                 xMed->SetDataAvailableLink( Link() );
363 //              xMed->SetDoneLink( Link() );
364                 delete pDownLoadData, pDownLoadData = 0;
365                 bDataReady = sal_True;
366                 bWaitForData = sal_False;
367             }
368             else if( sal_False )
369             {
370                 // Timer aufsetzen, um zurueck zukehren
371                 pDownLoadData->aTimer.Start();
372             }
373         }
374     }
375 
376     if( pStream && ERRCODE_IO_PENDING == pStream->GetError() )
377         pStream->ResetError();
378 
379 #ifdef DBG_UTIL
380     if( nRes )
381     {
382         if( xMed.Is() && !pStream )
383         {
384             DBG_WARNING3( "GrafikFehler [%d] - [%s] URL[%s]",
385                             nRes,
386                             xMed->GetPhysicalName().GetBuffer(),
387                             sFileNm.GetBuffer() );
388         }
389         else
390         {
391             DBG_WARNING2( "GrafikFehler [%d] - [%s]",
392                             nRes, sFileNm.GetBuffer() );
393         }
394     }
395 #endif
396 
397     return GRFILTER_OK == nRes;
398 }
399 
400 /** detect the filter of the given file
401 
402     @param _rURL
403         specifies the URL of the file which filter is to detected.<br/>
404         If the URL doesn't denote a valid (existent and accessible) file, the
405         request is silently dropped.
406 */
407 String impl_getFilter( const String& _rURL )
408 {
409     String sFilter;
410     if ( _rURL.Len() == 0 )
411         return sFilter;
412 
413     try
414     {
415         css::uno::Reference< ::com::sun::star::document::XTypeDetection > xTypeDetection(
416             ::comphelper::getProcessServiceFactory()->createInstance(
417                 ::rtl::OUString::createFromAscii("com.sun.star.document.TypeDetection") ),
418                 css::uno::UNO_QUERY );
419         if ( xTypeDetection.is() )
420         {
421             ::comphelper::MediaDescriptor aDescr;
422             aDescr[ ::comphelper::MediaDescriptor::PROP_URL() ] <<= ::rtl::OUString( _rURL );
423             css::uno::Sequence< css::beans::PropertyValue > aDescrList =
424                 aDescr.getAsConstPropertyValueList();
425             ::rtl::OUString sType = xTypeDetection->queryTypeByDescriptor( aDescrList, sal_True );
426             if ( sType.getLength() )
427             {
428                 css::uno::Reference< css::container::XNameAccess > xTypeCont( xTypeDetection,
429                                                                               css::uno::UNO_QUERY );
430                 if ( xTypeCont.is() )
431                 {
432                     ::comphelper::SequenceAsHashMap lTypeProps( xTypeCont->getByName( sType ) );
433                     sFilter = lTypeProps.getUnpackedValueOrDefault(
434                         ::rtl::OUString::createFromAscii("PreferredFilter"), ::rtl::OUString() );
435                 }
436             }
437         }
438     }
439     catch( const css::uno::Exception& )
440     {
441     }
442 
443     return sFilter;
444 }
445 
446 void SvFileObject::Edit( Window* pParent, sfx2::SvBaseLink* pLink, const Link& rEndEditHdl )
447 {
448     aEndEditLink = rEndEditHdl;
449     String sFile, sRange, sTmpFilter;
450     if( pLink && pLink->GetLinkManager() )
451     {
452         pLink->GetLinkManager()->GetDisplayNames( pLink, 0, &sFile, &sRange, &sTmpFilter );
453 
454         switch( pLink->GetObjType() )
455         {
456             case OBJECT_CLIENT_GRF:
457             {
458                 nType = FILETYPE_GRF;       // falls noch nicht gesetzt
459 
460                 SvxOpenGraphicDialog aDlg(SfxResId(RID_SVXSTR_EDITGRFLINK));
461                 aDlg.EnableLink(sal_False);
462                 aDlg.SetPath( sFile, sal_True );
463                 aDlg.SetCurrentFilter( sTmpFilter );
464 
465                 if( !aDlg.Execute() )
466                 {
467                     sFile = aDlg.GetPath();
468                     sFile += ::sfx2::cTokenSeperator;
469                     sFile += ::sfx2::cTokenSeperator;
470                     sFile += aDlg.GetCurrentFilter();
471 
472                     if ( aEndEditLink.IsSet() )
473                         aEndEditLink.Call( &sFile );
474                 }
475                 else
476                     sFile.Erase();
477             }
478             break;
479 
480             case OBJECT_CLIENT_OLE:
481             {
482                 nType = FILETYPE_OBJECT; // if not set already
483                 pOldParent = Application::GetDefDialogParent();
484                 Application::SetDefDialogParent( pParent );
485 
486                 ::sfx2::FileDialogHelper* pFileDlg =
487                     pLink->GetFileDialog( (SFXWB_INSERT | WB_3DLOOK), String() );
488                 pFileDlg->StartExecuteModal( LINK( this, SvFileObject, DialogClosedHdl ) );
489             }
490             break;
491 
492             case OBJECT_CLIENT_FILE:
493             {
494                 nType = FILETYPE_TEXT; // if not set already
495                 pOldParent = Application::GetDefDialogParent();
496                 Application::SetDefDialogParent( pParent );
497 
498                 String sFactory;
499                 SfxObjectShell* pShell = pLink->GetLinkManager()->GetPersist();
500                 if ( pShell )
501                     sFactory = pShell->GetFactory().GetFactoryName();
502 
503                 ::sfx2::FileDialogHelper* pFileDlg =
504                     pLink->GetFileDialog( (SFXWB_INSERT | WB_3DLOOK), sFactory );
505                 pFileDlg->StartExecuteModal( LINK( this, SvFileObject, DialogClosedHdl ) );
506             }
507             break;
508 
509             default:
510                 sFile.Erase();
511         }
512     }
513 }
514 
515 IMPL_STATIC_LINK( SvFileObject, LoadGrfReady_Impl, void*, EMPTYARG )
516 {
517     // wenn wir von hier kommen, kann es kein Fehler mehr sein
518     pThis->bLoadError = sal_False;
519     pThis->bWaitForData = sal_False;
520     pThis->bInCallDownLoad = sal_False;
521 
522     if( !pThis->bInNewData && !pThis->bDataReady )
523     {
524             // Grafik ist fertig, also DataChanged von der Status-
525             // aederung schicken:
526         pThis->bDataReady = sal_True;
527         pThis->SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_OK );
528 
529             // und dann nochmal die Daten senden
530         pThis->NotifyDataChanged();
531     }
532 
533     if( pThis->bDataReady )
534     {
535         pThis->bLoadAgain = sal_True;
536         if( pThis->xMed.Is() )
537         {
538             pThis->xMed->SetDataAvailableLink( Link() );
539             pThis->xMed->SetDoneLink( Link() );
540 
541             Application::PostUserEvent(
542                         STATIC_LINK( pThis, SvFileObject, DelMedium_Impl ),
543                         new SfxMediumRef( pThis->xMed ));
544             pThis->xMed.Clear();
545         }
546         if( pThis->pDownLoadData )
547             delete pThis->pDownLoadData, pThis->pDownLoadData = 0;
548     }
549 
550     return 0;
551 }
552 
553 IMPL_STATIC_LINK( SvFileObject, DelMedium_Impl, SfxMediumRef*, pDelMed )
554 {
555     (void)pThis;
556     delete pDelMed;
557     return 0;
558 }
559 
560 IMPL_STATIC_LINK( SvFileObject, LoadGrfNewData_Impl, void*, EMPTYARG )
561 {
562     // wenn wir von hier kommen, kann es kein Fehler mehr sein
563     if( pThis->bInNewData )
564         return 0;
565 
566     pThis->bInNewData = sal_True;
567     pThis->bLoadError = sal_False;
568 
569     if( !pThis->pDownLoadData )
570     {
571         pThis->pDownLoadData = new Impl_DownLoadData(
572                         STATIC_LINK( pThis, SvFileObject, LoadGrfNewData_Impl ) );
573 
574         // Null-Link setzen, damit keine temporaeren Grafiken
575         // rausgeswapt werden; der Filter prueft, ob schon
576         // ein Link gesetzt ist => falls dies zutrifft, wird
577         // _kein_ neuer Link gesetzt; der Link muss hier gesetzt werden,
578         // (bevor das erste Mal gefiltert wird), um zu verhindern,
579         // dass der Kontext zurueckgesetzt wird (aynchrones Laden)
580         if( !pThis->bNativFormat )
581         {
582             static GfxLink aDummyLink;
583             pThis->pDownLoadData->aGrf.SetLink( aDummyLink );
584         }
585     }
586 
587     pThis->NotifyDataChanged();
588 
589     SvStream* pStrm = pThis->xMed.Is() ? pThis->xMed->GetInStream() : 0;
590     if( pStrm && pStrm->GetError() )
591     {
592         if( ERRCODE_IO_PENDING == pStrm->GetError() )
593             pStrm->ResetError();
594 
595         // im DataChanged ein DataReady?
596         else if( pThis->bWaitForData && pThis->pDownLoadData )
597         {
598             pThis->bLoadError = sal_True;
599         }
600     }
601 
602     if( pThis->bDataReady )
603     {
604         // Grafik ist fertig, also DataChanged von der Status-
605         // aederung schicken:
606         pThis->SendStateChg_Impl( pStrm->GetError() ? sfx2::LinkManager::STATE_LOAD_ERROR : sfx2::LinkManager::STATE_LOAD_OK );
607     }
608 
609     pThis->bInNewData = sal_False;
610     return 0;
611 }
612 
613 IMPL_LINK( SvFileObject, DialogClosedHdl, sfx2::FileDialogHelper*, _pFileDlg )
614 {
615     String sFile;
616     Application::SetDefDialogParent( pOldParent );
617 
618     if ( FILETYPE_TEXT == nType || FILETYPE_OBJECT == nType )
619     {
620         if ( _pFileDlg && _pFileDlg->GetError() == ERRCODE_NONE )
621         {
622             String sURL( _pFileDlg->GetPath() );
623             sFile = sURL;
624             sFile += ::sfx2::cTokenSeperator;
625             sFile += ::sfx2::cTokenSeperator;
626             sFile += impl_getFilter( sURL );
627         }
628     }
629     else
630     {
631         DBG_ERRORFILE( "SvFileObject::DialogClosedHdl(): wrong file type" );
632     }
633 
634     if ( aEndEditLink.IsSet() )
635         aEndEditLink.Call( &sFile );
636     return 0;
637 }
638 
639 /*  [Beschreibung]
640 
641     Die Methode stellt fest, ob aus einem DDE-Object die Daten gelesen
642     werden kann.
643     Zurueckgegeben wird:
644         ERRCODE_NONE            wenn sie komplett gelesen wurde
645         ERRCODE_SO_PENDING      wenn sie noch nicht komplett gelesen wurde
646         ERRCODE_SO_FALSE        sonst
647 */
648 sal_Bool SvFileObject::IsPending() const
649 {
650     return FILETYPE_GRF == nType && !bLoadError &&
651             ( pDownLoadData || bWaitForData );
652 }
653 sal_Bool SvFileObject::IsDataComplete() const
654 {
655     sal_Bool bRet = sal_False;
656     if( FILETYPE_GRF != nType )
657         bRet = sal_True;
658     else if( !bLoadError && ( !bWaitForData && !pDownLoadData ))
659     {
660         SvFileObject* pThis = (SvFileObject*)this;
661         if( bDataReady ||
662             ( bSynchron && pThis->LoadFile_Impl() && xMed.Is() ) )
663             bRet = sal_True;
664         else
665         {
666             INetURLObject aUrl( sFileNm );
667             if( aUrl.HasError() ||
668                 INET_PROT_NOT_VALID == aUrl.GetProtocol() )
669                 bRet = sal_True;
670         }
671     }
672     return bRet;
673 }
674 
675 
676 
677 void SvFileObject::CancelTransfers()
678 {
679     // und aus dem Cache austragen, wenn man mitten im Laden ist
680     if( !bDataReady )
681     {
682         // nicht noch mal aufsetzen
683         bLoadAgain = sal_False;
684         bDataReady = bLoadError = bWaitForData = sal_True;
685         SendStateChg_Impl( sfx2::LinkManager::STATE_LOAD_ABORT );
686     }
687 }
688 
689 
690 void SvFileObject::SendStateChg_Impl( sfx2::LinkManager::LinkState nState )
691 {
692     if( !bStateChangeCalled && HasDataLinks() )
693     {
694         css::uno::Any aAny;
695         aAny <<= rtl::OUString::valueOf( (sal_Int32)nState );
696         DataChanged( SotExchange::GetFormatName(
697                         sfx2::LinkManager::RegisterStatusInfoId()), aAny );
698         bStateChangeCalled = sal_True;
699     }
700 }
701 
702 
703