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21 
22 
23 
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_dtrans.hxx"
26 
27 //------------------------------------------------------------------------
28 // includes
29 //------------------------------------------------------------------------
30 #include <sal/types.h>
31 #include <rtl/process.h>
32 
33 #ifndef _DOWRAPPERTRANSFERABLE_HXX_
34 #include "DOTransferable.hxx"
35 #endif
36 #include "..\misc\ImplHelper.hxx"
37 #include "..\misc\WinClip.hxx"
38 #include "DTransHelper.hxx"
39 #include "..\misc\ImplHelper.hxx"
40 #include "TxtCnvtHlp.hxx"
41 #include "MimeAttrib.hxx"
42 #include "FmtFilter.hxx"
43 #include "Fetc.hxx"
44 
45 
46 #if(_MSC_VER < 1300) && !defined(__MINGW32__)
47 #include <olestd.h>
48 #endif
49 
50 #define STR2(x) #x
51 #define STR(x) STR2(x)
52 #define PRAGMA_MSG( msg ) message( __FILE__ "(" STR(__LINE__) "): " #msg )
53 
54 //------------------------------------------------------------------------
55 // namespace directives
56 //------------------------------------------------------------------------
57 
58 using namespace rtl;
59 using namespace std;
60 using namespace osl;
61 using namespace cppu;
62 using namespace com::sun::star::uno;
63 using namespace com::sun::star::datatransfer;
64 using namespace com::sun::star::io;
65 using namespace com::sun::star::lang;
66 using namespace com::sun::star::container;
67 
68 //------------------------------------------------------------------------
69 //
70 //------------------------------------------------------------------------
71 
72 namespace
73 {
74 	const Type CPPUTYPE_SEQINT8  = getCppuType( ( Sequence< sal_Int8 >* )0 );
75 	const Type CPPUTYPE_OUSTRING = getCppuType( (OUString*)0 );
76 
77 	inline
isValidFlavor(const DataFlavor & aFlavor)78 	sal_Bool isValidFlavor( const DataFlavor& aFlavor )
79 	{
80 		return ( aFlavor.MimeType.getLength( ) &&
81 				 ( ( aFlavor.DataType ==  CPPUTYPE_SEQINT8 ) ||
82 				 ( aFlavor.DataType == CPPUTYPE_OUSTRING ) ) );
83 	}
84 
85 } // end namespace
86 
87 
88 //------------------------------------------------------------------------
89 // ctor
90 //------------------------------------------------------------------------
91 
CDOTransferable(const Reference<XMultiServiceFactory> & ServiceManager,IDataObjectPtr rDataObject)92 CDOTransferable::CDOTransferable(
93 	const Reference< XMultiServiceFactory >& ServiceManager, IDataObjectPtr rDataObject ) :
94 	m_rDataObject( rDataObject ),
95 	m_SrvMgr( ServiceManager ),
96 	m_DataFormatTranslator( m_SrvMgr ),
97 	m_bUnicodeRegistered( sal_False ),
98 	m_TxtFormatOnClipboard( CF_INVALID )
99 {
100 }
101 
102 //------------------------------------------------------------------------
103 //
104 //------------------------------------------------------------------------
105 
getTransferData(const DataFlavor & aFlavor)106 Any SAL_CALL CDOTransferable::getTransferData( const DataFlavor& aFlavor )
107 		throw( UnsupportedFlavorException, IOException, RuntimeException )
108 {
109 	OSL_ASSERT( isValidFlavor( aFlavor ) );
110 
111 	MutexGuard aGuard( m_aMutex );
112 
113 	//------------------------------------------------
114 	// convert dataflavor to formatetc
115 	//------------------------------------------------
116 
117 	CFormatEtc fetc = m_DataFormatTranslator.getFormatEtcFromDataFlavor( aFlavor );
118 	OSL_ASSERT( CF_INVALID != fetc.getClipformat() );
119 
120 	//------------------------------------------------
121 	//	get the data from clipboard in a byte stream
122 	//------------------------------------------------
123 
124 	ByteSequence_t clipDataStream;
125 
126 	try
127 	{
128 		clipDataStream = getClipboardData( fetc );
129 	}
130 	catch( UnsupportedFlavorException& )
131 	{
132 		if ( m_DataFormatTranslator.isUnicodeTextFormat( fetc.getClipformat( ) ) &&
133 			 m_bUnicodeRegistered )
134 		{
135 			 OUString aUnicodeText = synthesizeUnicodeText( );
136 			 Any aAny = makeAny( aUnicodeText );
137 			 return aAny;
138 		}
139         // #124085# CF_DIBV5 should not be possible, but keep for reading from the
140         // clipboard for being on the safe side
141         else if(CF_DIBV5 == fetc.getClipformat())
142         {
143             // #123407# CF_DIBV5 has priority; if the try to fetch this failed,
144             // check CF_DIB availability as an alternative
145             fetc.setClipformat(CF_DIB);
146 
147             try
148             {
149                 clipDataStream = getClipboardData( fetc );
150             }
151             catch( UnsupportedFlavorException& )
152             {
153                 throw; // pass through, tried all possibilities
154             }
155         }
156 		else
157 			throw; // pass through exception
158 	}
159 
160 	//------------------------------------------------
161 	// return the data as any
162 	//------------------------------------------------
163 
164 	return byteStreamToAny( clipDataStream, aFlavor.DataType );
165 }
166 
167 //------------------------------------------------------------------------
168 // getTransferDataFlavors
169 //------------------------------------------------------------------------
170 
getTransferDataFlavors()171 Sequence< DataFlavor > SAL_CALL CDOTransferable::getTransferDataFlavors(  )
172 	throw( RuntimeException )
173 {
174 	return m_FlavorList;
175 }
176 
177 //------------------------------------------------------------------------
178 // isDataFlavorSupported
179 // returns true if we find a DataFlavor with the same MimeType and
180 // DataType
181 //------------------------------------------------------------------------
182 
isDataFlavorSupported(const DataFlavor & aFlavor)183 sal_Bool SAL_CALL CDOTransferable::isDataFlavorSupported( const DataFlavor& aFlavor )
184 	throw( RuntimeException )
185 {
186 	OSL_ASSERT( isValidFlavor( aFlavor ) );
187 
188 	for ( sal_Int32 i = 0; i < m_FlavorList.getLength( ); i++ )
189 		if ( compareDataFlavors( aFlavor, m_FlavorList[i] ) )
190 			return sal_True;
191 
192 	return sal_False;
193 }
194 
195 //------------------------------------------------------------------------
196 // helper function
197 // the list of datafalvors currently on the clipboard will be initialized
198 // only once; if the client of this Transferable will hold a reference
199 // to it und the underlying clipboard content changes, the client does
200 // possible operate on a invalid list
201 // if there is only text on the clipboard we will also offer unicode text
202 // an synthesize this format on the fly if requested, to accomplish this
203 // we save the first offered text format which we will later use for the
204 // conversion
205 //------------------------------------------------------------------------
206 
initFlavorList()207 void SAL_CALL CDOTransferable::initFlavorList( )
208 {
209 	IEnumFORMATETCPtr pEnumFormatEtc;
210 	HRESULT hr = m_rDataObject->EnumFormatEtc( DATADIR_GET, &pEnumFormatEtc );
211 	if ( SUCCEEDED( hr ) )
212 	{
213 		pEnumFormatEtc->Reset( );
214 
215 		FORMATETC fetc;
216 		while ( S_FALSE != pEnumFormatEtc->Next( 1, &fetc, NULL ) )
217 		{
218 			// we use locales only to determine the
219 			// charset if there is text on the cliboard
220 			// we don't offer this format
221 			if ( CF_LOCALE == fetc.cfFormat )
222 				continue;
223 
224 			DataFlavor aFlavor = formatEtcToDataFlavor( fetc );
225 
226 			// if text or oemtext is offered we also pretend to have unicode text
227 			if ( m_DataFormatTranslator.isOemOrAnsiTextFormat( fetc.cfFormat ) &&
228 				 !m_bUnicodeRegistered )
229 			{
230 				addSupportedFlavor( aFlavor );
231 
232 				m_TxtFormatOnClipboard = fetc.cfFormat;
233 				m_bUnicodeRegistered   = sal_True;
234 
235 				// register unicode text as accompany format
236 				aFlavor = formatEtcToDataFlavor(
237 					m_DataFormatTranslator.getFormatEtcForClipformat( CF_UNICODETEXT ) );
238 				addSupportedFlavor( aFlavor );
239 			}
240 			else if ( (CF_UNICODETEXT == fetc.cfFormat) && !m_bUnicodeRegistered )
241 			{
242 				addSupportedFlavor( aFlavor );
243 				m_bUnicodeRegistered = sal_True;
244 			}
245 			else
246 				addSupportedFlavor( aFlavor );
247 
248 			// see MSDN IEnumFORMATETC
249 			CoTaskMemFree( fetc.ptd );
250 		}
251 	}
252 }
253 
254 //------------------------------------------------------------------------
255 //
256 //------------------------------------------------------------------------
257 
258 inline
addSupportedFlavor(const DataFlavor & aFlavor)259 void SAL_CALL CDOTransferable::addSupportedFlavor( const DataFlavor& aFlavor )
260 {
261 	// we ignore all formats that couldn't be translated
262 	if ( aFlavor.MimeType.getLength( ) )
263 	{
264 		OSL_ASSERT( isValidFlavor( aFlavor ) );
265 
266 		m_FlavorList.realloc( m_FlavorList.getLength( ) + 1 );
267 		m_FlavorList[m_FlavorList.getLength( ) - 1] = aFlavor;
268 	}
269 }
270 
271 //------------------------------------------------------------------------
272 // helper function
273 //------------------------------------------------------------------------
274 
275 //inline
formatEtcToDataFlavor(const FORMATETC & aFormatEtc)276 DataFlavor SAL_CALL CDOTransferable::formatEtcToDataFlavor( const FORMATETC& aFormatEtc )
277 {
278 	DataFlavor aFlavor;
279 	LCID lcid = 0;
280 
281 	// for non-unicode text format we must provid a locale to get
282 	// the character-set of the text, if there is no locale on the
283 	// clipboard we assume the text is in a charset appropriate for
284 	// the current thread locale
285 	if ( (CF_TEXT == aFormatEtc.cfFormat) || (CF_OEMTEXT == aFormatEtc.cfFormat) )
286 		lcid = getLocaleFromClipboard( );
287 
288 	return m_DataFormatTranslator.getDataFlavorFromFormatEtc( aFormatEtc, lcid );
289 }
290 
291 //------------------------------------------------------------------------
292 // returns the current locale on clipboard; if there is no locale on
293 // clipboard the function returns the current thread locale
294 //------------------------------------------------------------------------
295 
getLocaleFromClipboard()296 LCID SAL_CALL CDOTransferable::getLocaleFromClipboard( )
297 {
298 	LCID lcid = GetThreadLocale( );
299 
300 	try
301 	{
302 		CFormatEtc fetc = m_DataFormatTranslator.getFormatEtcForClipformat( CF_LOCALE );
303 		ByteSequence_t aLCIDSeq = getClipboardData( fetc );
304 		lcid = *(reinterpret_cast<LCID*>( aLCIDSeq.getArray( ) ) );
305 
306 		// because of a Win95/98 Bug; there the high word
307 		// of a locale has the same value as the
308 		// low word e.g. 0x07040704 that's not right
309 		// correct is 0x00000704
310 		lcid &= 0x0000FFFF;
311 	}
312 	catch(...)
313 	{
314 		// we take the default locale
315 	}
316 
317 	return lcid;
318 }
319 
320 //------------------------------------------------------------------------
321 // i think it's not necessary to call ReleaseStgMedium
322 // in case of failures because nothing should have been
323 // allocated etc.
324 //------------------------------------------------------------------------
325 
getClipboardData(CFormatEtc & aFormatEtc)326 CDOTransferable::ByteSequence_t SAL_CALL CDOTransferable::getClipboardData( CFormatEtc& aFormatEtc )
327 {
328 	STGMEDIUM stgmedium;
329 	HRESULT hr = m_rDataObject->GetData( aFormatEtc, &stgmedium );
330 
331 	// in case of failure to get a WMF metafile handle, try to get a memory block
332 	if( FAILED( hr ) &&
333 	    ( CF_METAFILEPICT == aFormatEtc.getClipformat() ) &&
334 	    ( TYMED_MFPICT == aFormatEtc.getTymed() ) )
335 	{
336         CFormatEtc aTempFormat( aFormatEtc );
337 	    aTempFormat.setTymed( TYMED_HGLOBAL );
338 	    hr = m_rDataObject->GetData( aTempFormat, &stgmedium );
339 	}
340 
341 	if ( FAILED( hr ) )
342 	{
343 		OSL_ASSERT( (hr != E_INVALIDARG) &&
344 			        (hr != DV_E_DVASPECT) &&
345 					(hr != DV_E_LINDEX) &&
346 					(hr != DV_E_TYMED) );
347 
348 		if ( DV_E_FORMATETC == hr )
349 			throw UnsupportedFlavorException( );
350 		else if ( STG_E_MEDIUMFULL == hr )
351 			throw IOException( );
352 		else
353 			throw RuntimeException( );
354 	}
355 
356 	ByteSequence_t byteStream;
357 
358 	try
359 	{
360 		if ( CF_ENHMETAFILE == aFormatEtc.getClipformat() )
361 			byteStream = WinENHMFPictToOOMFPict( stgmedium.hEnhMetaFile );
362         else if (CF_HDROP == aFormatEtc.getClipformat())
363 			byteStream = CF_HDROPToFileList(stgmedium.hGlobal);
364         else if ( CF_BITMAP == aFormatEtc.getClipformat() )
365         {
366             byteStream = WinBITMAPToOOBMP(stgmedium.hBitmap);
367             if( aFormatEtc.getTymed() == TYMED_GDI &&
368                 ! stgmedium.pUnkForRelease )
369             {
370                 DeleteObject(stgmedium.hBitmap);
371             }
372         }
373 		else
374 		{
375 			clipDataToByteStream( aFormatEtc.getClipformat( ), stgmedium, byteStream );
376 
377 			// format conversion if necessary
378             // #124085# DIBV5 should not happen currently, but keep as a hint here
379 			if(CF_DIBV5 == aFormatEtc.getClipformat() || CF_DIB == aFormatEtc.getClipformat())
380             {
381 				byteStream = WinDIBToOOBMP(byteStream);
382             }
383 			else if(CF_METAFILEPICT == aFormatEtc.getClipformat())
384             {
385 				byteStream = WinMFPictToOOMFPict(byteStream);
386             }
387 		}
388 
389 		ReleaseStgMedium( &stgmedium );
390 	}
391 	catch( CStgTransferHelper::CStgTransferException& )
392 	{
393 		ReleaseStgMedium( &stgmedium );
394 		throw IOException( );
395 	}
396 
397 	return byteStream;
398 }
399 
400 //------------------------------------------------------------------------
401 //
402 //------------------------------------------------------------------------
403 
synthesizeUnicodeText()404 OUString SAL_CALL CDOTransferable::synthesizeUnicodeText( )
405 {
406 	ByteSequence_t aTextSequence;
407 	CFormatEtc	   fetc;
408 	LCID		   lcid = getLocaleFromClipboard( );
409 	sal_uInt32	   cpForTxtCnvt = 0;
410 
411 	if ( CF_TEXT == m_TxtFormatOnClipboard )
412 	{
413 		fetc = m_DataFormatTranslator.getFormatEtcForClipformat( CF_TEXT );
414 		aTextSequence = getClipboardData( fetc );
415 
416 		// determine the codepage used for text conversion
417 		cpForTxtCnvt = getWinCPFromLocaleId( lcid, LOCALE_IDEFAULTANSICODEPAGE ).toInt32( );
418 	}
419 	else if ( CF_OEMTEXT == m_TxtFormatOnClipboard )
420 	{
421 		fetc = m_DataFormatTranslator.getFormatEtcForClipformat( CF_OEMTEXT );
422 		aTextSequence = getClipboardData( fetc );
423 
424 		// determine the codepage used for text conversion
425 		cpForTxtCnvt = getWinCPFromLocaleId( lcid, LOCALE_IDEFAULTCODEPAGE ).toInt32( );
426 	}
427 	else
428 		OSL_ASSERT( sal_False );
429 
430 	CStgTransferHelper stgTransferHelper;
431 
432 	// convert the text
433 	MultiByteToWideCharEx( cpForTxtCnvt,
434 						   reinterpret_cast<char*>( aTextSequence.getArray( ) ),
435                            sal::static_int_cast<sal_uInt32>(-1), // Huh ?
436                            stgTransferHelper,
437                            sal_False);
438 
439 	CRawHGlobalPtr	ptrHGlob(stgTransferHelper);
440 	sal_Unicode*	pWChar = reinterpret_cast<sal_Unicode*>(ptrHGlob.GetMemPtr());
441 
442 	return OUString(pWChar);
443 }
444 
445 //------------------------------------------------------------------------
446 //
447 //------------------------------------------------------------------------
448 
clipDataToByteStream(CLIPFORMAT cf,STGMEDIUM stgmedium,ByteSequence_t & aByteSequence)449 void CDOTransferable::clipDataToByteStream( CLIPFORMAT cf, STGMEDIUM stgmedium, ByteSequence_t& aByteSequence )
450 {
451 	CStgTransferHelper memTransferHelper;
452 
453 	switch( stgmedium.tymed )
454 	{
455 	case TYMED_HGLOBAL:
456 		memTransferHelper.init( stgmedium.hGlobal );
457 		break;
458 
459 	case TYMED_MFPICT:
460 		memTransferHelper.init( stgmedium.hMetaFilePict );
461 		break;
462 
463 	case TYMED_ENHMF:
464 		memTransferHelper.init( stgmedium.hEnhMetaFile );
465 		break;
466 
467 	case TYMED_ISTREAM:
468 		#ifdef _MSC_VER
469 		#pragma PRAGMA_MSG( Has to be implemented )
470 		#endif
471 		break;
472 
473 	default:
474 		throw UnsupportedFlavorException( );
475 		break;
476 	}
477 
478 	int nMemSize = memTransferHelper.memSize( cf );
479 	aByteSequence.realloc( nMemSize );
480 	memTransferHelper.read( aByteSequence.getArray( ), nMemSize );
481 }
482 
483 //------------------------------------------------------------------------
484 //
485 //------------------------------------------------------------------------
486 
487 inline
byteStreamToAny(ByteSequence_t & aByteStream,const Type & aRequestedDataType)488 Any CDOTransferable::byteStreamToAny( ByteSequence_t& aByteStream, const Type& aRequestedDataType )
489 {
490 	Any aAny;
491 
492 	if ( aRequestedDataType == CPPUTYPE_OUSTRING )
493 	{
494 		OUString str = byteStreamToOUString( aByteStream );
495 		aAny = makeAny(	str );
496 	}
497 	else
498 		aAny = makeAny( aByteStream );
499 
500 	return aAny;
501 }
502 
503 //------------------------------------------------------------------------
504 //
505 //------------------------------------------------------------------------
506 
507 inline
byteStreamToOUString(ByteSequence_t & aByteStream)508 OUString CDOTransferable::byteStreamToOUString( ByteSequence_t& aByteStream )
509 {
510 	sal_Int32 nWChars;
511 	sal_Int32 nMemSize = aByteStream.getLength( );
512 
513 	// if there is a trailing L"\0" substract 1 from length
514 	if ( 0 == aByteStream[ aByteStream.getLength( ) - 2 ] &&
515 		 0 == aByteStream[ aByteStream.getLength( ) - 1 ] )
516 		nWChars = static_cast< sal_Int32 >( nMemSize / sizeof( sal_Unicode ) ) - 1;
517 	else
518 		nWChars = static_cast< sal_Int32 >( nMemSize / sizeof( sal_Unicode ) );
519 
520 	return OUString( reinterpret_cast< sal_Unicode* >( aByteStream.getArray( ) ), nWChars );
521 }
522 
523 //------------------------------------------------------------------------
524 //
525 //------------------------------------------------------------------------
526 
compareDataFlavors(const DataFlavor & lhs,const DataFlavor & rhs)527 sal_Bool SAL_CALL CDOTransferable::compareDataFlavors(
528 	const DataFlavor& lhs, const DataFlavor& rhs )
529 {
530 	if ( !m_rXMimeCntFactory.is( ) )
531 	{
532 		m_rXMimeCntFactory = Reference< XMimeContentTypeFactory >( m_SrvMgr->createInstance(
533 			OUString::createFromAscii( "com.sun.star.datatransfer.MimeContentTypeFactory" ) ), UNO_QUERY );
534 	}
535 	OSL_ASSERT( m_rXMimeCntFactory.is( ) );
536 
537 	sal_Bool bRet = sal_False;
538 
539 	try
540 	{
541 		Reference< XMimeContentType > xLhs( m_rXMimeCntFactory->createMimeContentType( lhs.MimeType ) );
542 		Reference< XMimeContentType > xRhs( m_rXMimeCntFactory->createMimeContentType( rhs.MimeType ) );
543 
544 		if ( cmpFullMediaType( xLhs, xRhs ) )
545 		{
546 			bRet = cmpAllContentTypeParameter( xLhs, xRhs );
547 		}
548 	}
549 	catch( IllegalArgumentException& )
550 	{
551 		OSL_ENSURE( sal_False, "Invalid content type detected" );
552 		bRet = sal_False;
553 	}
554 
555 	return bRet;
556 }
557 
558 //------------------------------------------------------------------------
559 //
560 //------------------------------------------------------------------------
561 
cmpFullMediaType(const Reference<XMimeContentType> & xLhs,const Reference<XMimeContentType> & xRhs) const562 sal_Bool SAL_CALL CDOTransferable::cmpFullMediaType(
563 	const Reference< XMimeContentType >& xLhs, const Reference< XMimeContentType >& xRhs ) const
564 {
565 	return xLhs->getFullMediaType().equalsIgnoreAsciiCase( xRhs->getFullMediaType( ) );
566 }
567 
568 //------------------------------------------------------------------------
569 //
570 //------------------------------------------------------------------------
571 
cmpAllContentTypeParameter(const Reference<XMimeContentType> & xLhs,const Reference<XMimeContentType> & xRhs) const572 sal_Bool SAL_CALL CDOTransferable::cmpAllContentTypeParameter(
573 	const Reference< XMimeContentType >& xLhs, const Reference< XMimeContentType >& xRhs ) const
574 {
575 	Sequence< OUString > xLhsFlavors = xLhs->getParameters( );
576 	Sequence< OUString > xRhsFlavors = xRhs->getParameters( );
577 	sal_Bool bRet = sal_True;
578 
579 	try
580 	{
581 		if ( xLhsFlavors.getLength( ) == xRhsFlavors.getLength( ) )
582 		{
583 			OUString pLhs;
584 			OUString pRhs;
585 
586 			for ( sal_Int32 i = 0; i < xLhsFlavors.getLength( ); i++ )
587 			{
588 				pLhs = xLhs->getParameterValue( xLhsFlavors[i] );
589 				pRhs = xRhs->getParameterValue( xLhsFlavors[i] );
590 
591 				if ( !pLhs.equalsIgnoreAsciiCase( pRhs ) )
592 				{
593 					bRet = sal_False;
594 					break;
595 				}
596 			}
597 		}
598 		else
599 			bRet = sal_False;
600 	}
601 	catch( NoSuchElementException& )
602 	{
603 		bRet = sal_False;
604 	}
605 	catch( IllegalArgumentException& )
606 	{
607 		bRet = sal_False;
608 	}
609 
610 	return bRet;
611 }
612 
getData(const Sequence<sal_Int8> & aProcessId)613 ::com::sun::star::uno::Any SAL_CALL CDOTransferable::getData( const Sequence< sal_Int8>& aProcessId  )
614 		throw (::com::sun::star::uno::RuntimeException)
615 {
616 	Any retVal;
617 
618 	sal_uInt8 * arProcCaller= (sal_uInt8*)(sal_Int8*) aProcessId.getConstArray();
619 	sal_uInt8 arId[16];
620 	rtl_getGlobalProcessId(arId);
621 	if( ! memcmp( arId, arProcCaller,16))
622 	{
623 		if (m_rDataObject.is())
624 		{
625 			IDataObject* pObj= m_rDataObject.get();
626 			pObj->AddRef();
627 			retVal.setValue( &pObj, getCppuType((sal_uInt32*)0));
628 		}
629 	}
630 	return retVal;
631 }
632 
633