1 /************************************************************** 2 * 3 * Licensed to the Apache Software Foundation (ASF) under one 4 * or more contributor license agreements. See the NOTICE file 5 * distributed with this work for additional information 6 * regarding copyright ownership. The ASF licenses this file 7 * to you under the Apache License, Version 2.0 (the 8 * "License"); you may not use this file except in compliance 9 * with the License. You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, 14 * software distributed under the License is distributed on an 15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16 * KIND, either express or implied. See the License for the 17 * specific language governing permissions and limitations 18 * under the License. 19 * 20 *************************************************************/ 21 22 // MARKER(update_precomp.py): autogen include statement, do not remove 23 #include "precompiled_sfx2.hxx" 24 25 #include <sfx2/linkmgr.hxx> 26 #include <com/sun/star/document/UpdateDocMode.hpp> 27 #include <sfx2/objsh.hxx> 28 #include <svl/urihelper.hxx> 29 #include <sot/formats.hxx> 30 #include <tools/urlobj.hxx> 31 #include <sot/exchange.hxx> 32 #include <tools/debug.hxx> 33 #include <vcl/msgbox.hxx> 34 #include <sfx2/lnkbase.hxx> 35 #include <sfx2/app.hxx> 36 #include <vcl/graph.hxx> 37 #include <svl/stritem.hxx> 38 #include <svl/eitem.hxx> 39 #include <svl/intitem.hxx> 40 #include <unotools/localfilehelper.hxx> 41 #include <i18npool/mslangid.hxx> 42 #include <sfx2/request.hxx> 43 #include <vcl/dibtools.hxx> 44 45 #include "fileobj.hxx" 46 #include "impldde.hxx" 47 #include "app.hrc" 48 #include "sfx2/sfxresid.hxx" 49 50 #define _SVSTDARR_STRINGSDTOR 51 #include <svl/svstdarr.hxx> 52 53 namespace sfx2 54 { 55 56 class SvxInternalLink : public sfx2::SvLinkSource 57 { 58 public: 59 SvxInternalLink() {} 60 61 virtual sal_Bool Connect( sfx2::SvBaseLink* ); 62 }; 63 64 65 SV_IMPL_PTRARR( SvBaseLinks, SvBaseLinkRefPtr ) 66 67 LinkManager::LinkManager(SfxObjectShell* p) 68 : pPersist(p), 69 mAutoAskUpdateAllLinks(sal_False), 70 mUpdateAsked(sal_False) 71 { 72 } 73 74 LinkManager::~LinkManager() 75 { 76 SvBaseLinkRef** ppRef = (SvBaseLinkRef**)aLinkTbl.GetData(); 77 for( sal_uInt16 n = aLinkTbl.Count(); n; --n, ++ppRef ) 78 { 79 if( (*ppRef)->Is() ) 80 { 81 (*(*ppRef))->Disconnect(); 82 (*(*ppRef))->SetLinkManager( NULL ); 83 } 84 delete *ppRef; 85 } 86 } 87 88 89 /************************************************************************ 90 |* LinkManager::Remove() 91 |* 92 |* Description 93 *************************************************************************/ 94 95 void LinkManager::Remove( SvBaseLink *pLink ) 96 { 97 // do not insert links double 98 int bFound = sal_False; 99 SvBaseLinkRef** ppRef = (SvBaseLinkRef**)aLinkTbl.GetData(); 100 for( sal_uInt16 n = aLinkTbl.Count(); n; --n, ++ppRef ) 101 { 102 if( pLink == *(*ppRef) ) 103 { 104 (*(*ppRef))->Disconnect(); 105 (*(*ppRef))->SetLinkManager( NULL ); 106 (*(*ppRef)).Clear(); 107 bFound = sal_True; 108 } 109 110 // if there are still some empty ones, get rid of them 111 if( !(*ppRef)->Is() ) 112 { 113 delete *ppRef; 114 aLinkTbl.Remove( aLinkTbl.Count() - n, 1 ); 115 if( bFound ) 116 return ; 117 --ppRef; 118 } 119 } 120 } 121 122 123 void LinkManager::Remove( sal_uInt16 nPos, sal_uInt16 nCnt ) 124 { 125 if( nCnt && nPos < aLinkTbl.Count() ) 126 { 127 if( nPos + nCnt > aLinkTbl.Count() ) 128 nCnt = aLinkTbl.Count() - nPos; 129 130 SvBaseLinkRef** ppRef = (SvBaseLinkRef**)aLinkTbl.GetData() + nPos; 131 for( sal_uInt16 n = nCnt; n; --n, ++ppRef ) 132 { 133 if( (*ppRef)->Is() ) 134 { 135 (*(*ppRef))->Disconnect(); 136 (*(*ppRef))->SetLinkManager( NULL ); 137 } 138 delete *ppRef; 139 } 140 aLinkTbl.Remove( nPos, nCnt ); 141 } 142 } 143 144 145 sal_Bool LinkManager::Insert( SvBaseLink* pLink ) 146 { 147 148 // do not insert links double 149 for( sal_uInt16 n = 0; n < aLinkTbl.Count(); ++n ) 150 { 151 SvBaseLinkRef* pTmp = aLinkTbl[ n ]; 152 if( !pTmp->Is() ) 153 aLinkTbl.DeleteAndDestroy( n-- ); 154 155 if( pLink == *pTmp ) 156 return sal_False; 157 } 158 159 SvBaseLinkRef* pTmp = new SvBaseLinkRef( pLink ); 160 pLink->SetLinkManager( this ); 161 aLinkTbl.Insert( pTmp, aLinkTbl.Count() ); 162 if (mAutoAskUpdateAllLinks) 163 { 164 Window *parent = NULL; 165 SfxObjectShell* persist = GetPersist(); 166 if (persist != NULL) 167 parent = GetPersist()->GetDialogParent(); 168 169 SetUserAllowsLinkUpdate(pLink, GetUserAllowsLinkUpdate(parent)); 170 } 171 172 return sal_True; 173 } 174 175 176 sal_Bool LinkManager::InsertLink( SvBaseLink * pLink, 177 sal_uInt16 nObjType, 178 sal_uInt16 nUpdateMode, 179 const String* pName ) 180 { 181 // in any case: do this first 182 pLink->SetObjType( nObjType ); 183 if( pName ) 184 pLink->SetName( *pName ); 185 pLink->SetUpdateMode( nUpdateMode ); 186 return Insert( pLink ); 187 } 188 189 190 sal_Bool LinkManager::InsertDDELink( SvBaseLink * pLink, 191 const String& rServer, 192 const String& rTopic, 193 const String& rItem ) 194 { 195 if( !( OBJECT_CLIENT_SO & pLink->GetObjType() ) ) 196 return sal_False; 197 198 String sCmd; 199 ::sfx2::MakeLnkName( sCmd, &rServer, rTopic, rItem ); 200 201 pLink->SetObjType( OBJECT_CLIENT_DDE ); 202 pLink->SetName( sCmd ); 203 return Insert( pLink ); 204 } 205 206 207 sal_Bool LinkManager::InsertDDELink( SvBaseLink * pLink ) 208 { 209 DBG_ASSERT( OBJECT_CLIENT_SO & pLink->GetObjType(), "no OBJECT_CLIENT_SO" ); 210 if( !( OBJECT_CLIENT_SO & pLink->GetObjType() ) ) 211 return sal_False; 212 213 if( pLink->GetObjType() == OBJECT_CLIENT_SO ) 214 pLink->SetObjType( OBJECT_CLIENT_DDE ); 215 216 return Insert( pLink ); 217 } 218 219 220 // ask for the strings to be used in the dialog 221 sal_Bool LinkManager::GetDisplayNames( const SvBaseLink * pLink, 222 String* pType, 223 String* pFile, 224 String* pLinkStr, 225 String* pFilter ) const 226 { 227 sal_Bool bRet = sal_False; 228 const String sLNm( pLink->GetLinkSourceName() ); 229 if( sLNm.Len() ) 230 { 231 switch( pLink->GetObjType() ) 232 { 233 case OBJECT_CLIENT_FILE: 234 case OBJECT_CLIENT_GRF: 235 case OBJECT_CLIENT_OLE: 236 { 237 sal_uInt16 nPos = 0; 238 String sFile( sLNm.GetToken( 0, ::sfx2::cTokenSeperator, nPos ) ); 239 String sRange( sLNm.GetToken( 0, ::sfx2::cTokenSeperator, nPos ) ); 240 241 if( pFile ) 242 *pFile = sFile; 243 if( pLinkStr ) 244 *pLinkStr = sRange; 245 if( pFilter ) 246 *pFilter = sLNm.Copy( nPos ); 247 248 if( pType ) 249 { 250 sal_uInt16 nObjType = pLink->GetObjType(); 251 *pType = String( SfxResId( 252 ( OBJECT_CLIENT_FILE == nObjType || OBJECT_CLIENT_OLE == nObjType ) 253 ? RID_SVXSTR_FILELINK 254 : RID_SVXSTR_GRAFIKLINK )); 255 } 256 bRet = sal_True; 257 } 258 break; 259 case OBJECT_CLIENT_DDE: 260 { 261 sal_uInt16 nTmp = 0; 262 String sCmd( sLNm ); 263 String sServer( sCmd.GetToken( 0, cTokenSeperator, nTmp ) ); 264 String sTopic( sCmd.GetToken( 0, cTokenSeperator, nTmp ) ); 265 266 if( pType ) 267 *pType = sServer; 268 if( pFile ) 269 *pFile = sTopic; 270 if( pLinkStr ) 271 *pLinkStr = sCmd.Copy( nTmp ); 272 bRet = sal_True; 273 } 274 break; 275 default: 276 break; 277 } 278 } 279 280 return bRet; 281 } 282 283 void LinkManager::SetAutoAskUpdateAllLinks() 284 { 285 mAutoAskUpdateAllLinks = sal_True; 286 mUpdateAsked = sal_False; 287 } 288 289 void LinkManager::SetNeverAskUpdateAllLinks() 290 { 291 mAutoAskUpdateAllLinks = sal_False; 292 mAllowUpdate = sal_True; 293 mUpdateAsked = sal_True; 294 } 295 296 sal_Bool LinkManager::GetUserAllowsLinkUpdate(Window *pParentWin) 297 { 298 if (!mUpdateAsked) 299 { 300 if (QueryBox(pParentWin, WB_YES_NO | WB_DEF_NO, SfxResId(STR_QUERY_UPDATE_LINKS)).Execute() == RET_YES) 301 mAllowUpdate = sal_True; 302 else 303 mAllowUpdate = sal_False; 304 mUpdateAsked = sal_True; 305 } 306 return mAllowUpdate; 307 } 308 309 void LinkManager::SetUserAllowsLinkUpdate(SvBaseLink *pLink, sal_Bool allows) 310 { 311 SfxObjectShell* pShell = pLink->GetLinkManager()->GetPersist(); 312 313 if (pShell) 314 { 315 comphelper::EmbeddedObjectContainer& rEmbeddedObjectContainer = pShell->getEmbeddedObjectContainer(); 316 rEmbeddedObjectContainer.setUserAllowsLinkUpdate(allows); 317 } 318 } 319 320 321 void LinkManager::UpdateAllLinks( 322 sal_Bool bAskUpdate, 323 sal_Bool /*bCallErrHdl*/, 324 sal_Bool bUpdateGrfLinks, 325 Window* pParentWin ) 326 { 327 SvStringsDtor aApps, aTopics, aItems; 328 String sApp, sTopic, sItem; 329 330 // first create a copy of the array, so that updated links to not interfere with ... in between!! 331 SvPtrarr aTmpArr( 255, 50 ); 332 sal_uInt16 n; 333 for( n = 0; n < aLinkTbl.Count(); ++n ) 334 { 335 SvBaseLink* pLink = *aLinkTbl[ n ]; 336 if( !pLink ) 337 { 338 Remove( n-- ); 339 continue; 340 } 341 aTmpArr.Insert( pLink, aTmpArr.Count() ); 342 } 343 344 for( n = 0; n < aTmpArr.Count(); ++n ) 345 { 346 SvBaseLink* pLink = (SvBaseLink*)aTmpArr[ n ]; 347 348 // first search the entry in the array 349 sal_uInt16 nFndPos = USHRT_MAX; 350 for( sal_uInt16 i = 0; i < aLinkTbl.Count(); ++i ) 351 if( pLink == *aLinkTbl[ i ] ) 352 { 353 nFndPos = i; 354 break; 355 } 356 357 if( USHRT_MAX == nFndPos ) 358 continue; // was not already existing! 359 360 // do not update graphic links yet 361 if( !pLink->IsVisible() || 362 ( !bUpdateGrfLinks && OBJECT_CLIENT_GRF == pLink->GetObjType() )) 363 continue; 364 365 sal_Bool allows = sal_True; 366 367 if (bAskUpdate) 368 { 369 allows = GetUserAllowsLinkUpdate(pParentWin); 370 } 371 372 SetUserAllowsLinkUpdate(pLink, allows); 373 bAskUpdate = sal_False; // one time is OK 374 375 if (allows) 376 pLink->Update(); 377 } 378 } 379 380 /************************************************************************ 381 |* SvBaseLink::CreateObject() 382 |* 383 |* Description 384 *************************************************************************/ 385 386 SvLinkSourceRef LinkManager::CreateObj( SvBaseLink * pLink ) 387 { 388 switch( pLink->GetObjType() ) 389 { 390 case OBJECT_CLIENT_FILE: 391 case OBJECT_CLIENT_GRF: 392 case OBJECT_CLIENT_OLE: 393 return new SvFileObject; 394 case OBJECT_INTERN: 395 return new SvxInternalLink; 396 case OBJECT_CLIENT_DDE: 397 return new SvDDEObject; 398 default: 399 return SvLinkSourceRef(); 400 } 401 } 402 403 sal_Bool LinkManager::InsertServer( SvLinkSource* pObj ) 404 { 405 // do not insert double 406 if( !pObj || USHRT_MAX != aServerTbl.GetPos( pObj ) ) 407 return sal_False; 408 409 aServerTbl.Insert( pObj, aServerTbl.Count() ); 410 return sal_True; 411 } 412 413 414 void LinkManager::RemoveServer( SvLinkSource* pObj ) 415 { 416 sal_uInt16 nPos = aServerTbl.GetPos( pObj ); 417 if( USHRT_MAX != nPos ) 418 aServerTbl.Remove( nPos, 1 ); 419 } 420 421 422 void MakeLnkName( String& rName, const String* pType, const String& rFile, 423 const String& rLink, const String* pFilter ) 424 { 425 if( pType ) 426 (rName = *pType).EraseLeadingChars().EraseTrailingChars() += cTokenSeperator; 427 else if( rName.Len() ) 428 rName.Erase(); 429 430 ((rName += rFile).EraseLeadingChars().EraseTrailingChars() += 431 cTokenSeperator ).EraseLeadingChars().EraseTrailingChars() += rLink; 432 if( pFilter ) 433 ((rName += cTokenSeperator ) += *pFilter).EraseLeadingChars().EraseTrailingChars(); 434 } 435 436 sal_Bool LinkManager::InsertFileLink( sfx2::SvBaseLink& rLink, 437 sal_uInt16 nFileType, 438 const String& rFileNm, 439 const String* pFilterNm, 440 const String* pRange ) 441 { 442 if( !( OBJECT_CLIENT_SO & rLink.GetObjType() )) 443 return sal_False; 444 445 String sCmd( rFileNm ); 446 sCmd += ::sfx2::cTokenSeperator; 447 if( pRange ) 448 sCmd += *pRange; 449 if( pFilterNm ) 450 ( sCmd += ::sfx2::cTokenSeperator ) += *pFilterNm; 451 452 return InsertLink( &rLink, nFileType, sfx2::LINKUPDATE_ONCALL, &sCmd ); 453 } 454 455 sal_Bool LinkManager::InsertFileLink( sfx2::SvBaseLink& rLink ) 456 { 457 if( OBJECT_CLIENT_FILE == ( OBJECT_CLIENT_FILE & rLink.GetObjType() )) 458 return InsertLink( &rLink, rLink.GetObjType(), sfx2::LINKUPDATE_ONCALL ); 459 return sal_False; 460 } 461 462 // a transfer will be discontinued, therefore cancel all DownloadMedia 463 // (at the moment only interesting for the FileLinks!) 464 void LinkManager::CancelTransfers() 465 { 466 SvFileObject* pFileObj; 467 sfx2::SvBaseLink* pLnk; 468 469 const sfx2::SvBaseLinks& rLnks = GetLinks(); 470 for( sal_uInt16 n = rLnks.Count(); n; ) 471 if( 0 != ( pLnk = &(*rLnks[ --n ])) && 472 OBJECT_CLIENT_FILE == (OBJECT_CLIENT_FILE & pLnk->GetObjType()) && 473 0 != ( pFileObj = (SvFileObject*)pLnk->GetObj() ) ) 474 // 0 != ( pFileObj = (SvFileObject*)SvFileObject::ClassFactory()-> 475 // CastAndAddRef( pLnk->GetObj() )) ) 476 pFileObj->CancelTransfers(); 477 } 478 479 // to send status information from the FileObject to the BaseLink, there is an own ClipboardId. 480 // The SvData object has then the respective information as string. 481 // Currently this will be used for FileObject in connection with JavaScript 482 // - that needs information about Load/Abort/Error 483 sal_uIntPtr LinkManager::RegisterStatusInfoId() 484 { 485 static sal_uIntPtr nFormat = 0; 486 487 if( !nFormat ) 488 { 489 // how does the new interface look like? 490 // nFormat = Exchange::RegisterFormatName( "StatusInfo vom SvxInternalLink" ); 491 nFormat = SotExchange::RegisterFormatName( 492 String::CreateFromAscii( RTL_CONSTASCII_STRINGPARAM( 493 "StatusInfo vom SvxInternalLink" ))); 494 } 495 return nFormat; 496 } 497 498 // ---------------------------------------------------------------------- 499 500 sal_Bool LinkManager::GetGraphicFromAny( const String& rMimeType, 501 const ::com::sun::star::uno::Any & rValue, 502 Graphic& rGrf ) 503 { 504 sal_Bool bRet = sal_False; 505 ::com::sun::star::uno::Sequence< sal_Int8 > aSeq; 506 if( rValue.hasValue() && ( rValue >>= aSeq ) ) 507 { 508 SvMemoryStream aMemStm( (void*)aSeq.getConstArray(), aSeq.getLength(), 509 STREAM_READ ); 510 aMemStm.Seek( 0 ); 511 512 switch( SotExchange::GetFormatIdFromMimeType( rMimeType ) ) 513 { 514 case SOT_FORMATSTR_ID_SVXB: 515 { 516 aMemStm >> rGrf; 517 bRet = sal_True; 518 } 519 break; 520 case FORMAT_GDIMETAFILE: 521 { 522 GDIMetaFile aMtf; 523 aMtf.Read( aMemStm ); 524 rGrf = aMtf; 525 bRet = sal_True; 526 } 527 break; 528 case FORMAT_BITMAP: 529 { 530 Bitmap aBmp; 531 ReadDIB(aBmp, aMemStm, true); 532 rGrf = aBmp; 533 bRet = sal_True; 534 } 535 break; 536 } 537 } 538 return bRet; 539 } 540 541 542 // ---------------------------------------------------------------------- 543 String lcl_DDE_RelToAbs( const String& rTopic, const String& rBaseURL ) 544 { 545 String sRet; 546 INetURLObject aURL( rTopic ); 547 if( INET_PROT_NOT_VALID == aURL.GetProtocol() ) 548 utl::LocalFileHelper::ConvertSystemPathToURL( rTopic, rBaseURL, sRet ); 549 if( !sRet.Len() ) 550 sRet = URIHelper::SmartRel2Abs( INetURLObject(rBaseURL), rTopic, URIHelper::GetMaybeFileHdl(), true ); 551 return sRet; 552 } 553 554 sal_Bool SvxInternalLink::Connect( sfx2::SvBaseLink* pLink ) 555 { 556 SfxObjectShell* pFndShell = 0; 557 sal_uInt16 nUpdateMode = com::sun::star::document::UpdateDocMode::NO_UPDATE; 558 String sTopic, sItem, sReferer; 559 if( pLink->GetLinkManager() && 560 pLink->GetLinkManager()->GetDisplayNames( pLink, 0, &sTopic, &sItem ) 561 && sTopic.Len() ) 562 { 563 // for the moment run through the DocumentShells and search for the ones with names: 564 565 com::sun::star::lang::Locale aLocale; 566 MsLangId::convertLanguageToLocale( LANGUAGE_SYSTEM, aLocale ); 567 CharClass aCC( aLocale ); 568 569 String sNm( sTopic ), sTmp; 570 aCC.toLower( sNm ); 571 572 TypeId aType( TYPE(SfxObjectShell) ); 573 574 sal_Bool bFirst = sal_True; 575 SfxObjectShell* pShell = pLink->GetLinkManager()->GetPersist(); 576 if( pShell && pShell->GetMedium() ) 577 { 578 sReferer = pShell->GetMedium()->GetBaseURL(); 579 SFX_ITEMSET_ARG( pShell->GetMedium()->GetItemSet(), pItem, SfxUInt16Item, SID_UPDATEDOCMODE, sal_False ); 580 if ( pItem ) 581 nUpdateMode = pItem->GetValue(); 582 } 583 584 String sNmURL( lcl_DDE_RelToAbs( sTopic, sReferer ) ); 585 aCC.toLower( sNmURL ); 586 587 if ( !pShell ) 588 { 589 bFirst = sal_False; 590 pShell = SfxObjectShell::GetFirst( &aType, sal_False ); 591 } 592 593 while( pShell ) 594 { 595 if( !sTmp.Len() ) 596 { 597 sTmp = pShell->GetTitle( SFX_TITLE_FULLNAME ); 598 sTmp = lcl_DDE_RelToAbs(sTmp, sReferer ); 599 } 600 601 602 aCC.toLower( sTmp ); 603 if( sTmp == sNmURL ) // these we want to have 604 { 605 pFndShell = pShell; 606 break; 607 } 608 609 if( bFirst ) 610 { 611 bFirst = sal_False; 612 pShell = SfxObjectShell::GetFirst( &aType, sal_False ); 613 } 614 else 615 pShell = SfxObjectShell::GetNext( *pShell, &aType, sal_False ); 616 617 sTmp.Erase(); 618 } 619 } 620 621 // empty topics are not allowed - which document is it 622 if( !sTopic.Len() ) 623 return sal_False; 624 625 if( !pFndShell ) 626 { 627 // try to load the file: 628 INetURLObject aURL( sTopic ); 629 INetProtocol eOld = aURL.GetProtocol(); 630 aURL.SetURL( sTopic = lcl_DDE_RelToAbs( sTopic, sReferer ) ); 631 if( INET_PROT_NOT_VALID != eOld || 632 INET_PROT_HTTP != aURL.GetProtocol() ) 633 { 634 SfxStringItem aName( SID_FILE_NAME, sTopic ); 635 SfxBoolItem aMinimized(SID_MINIMIZED, sal_True); 636 SfxBoolItem aHidden(SID_HIDDEN, sal_True); 637 SfxStringItem aTarget( SID_TARGETNAME, String::CreateFromAscii("_blank") ); 638 SfxStringItem aReferer( SID_REFERER, sReferer ); 639 SfxUInt16Item aUpdate( SID_UPDATEDOCMODE, nUpdateMode ); 640 SfxBoolItem aReadOnly(SID_DOC_READONLY, sal_True); 641 642 // #i14200# (DDE-link crashes wordprocessor) 643 SfxAllItemSet aArgs( SFX_APP()->GetPool() ); 644 aArgs.Put(aReferer); 645 aArgs.Put(aTarget); 646 aArgs.Put(aHidden); 647 aArgs.Put(aMinimized); 648 aArgs.Put(aName); 649 aArgs.Put(aUpdate); 650 aArgs.Put(aReadOnly); 651 pFndShell = SfxObjectShell::CreateAndLoadObject( aArgs ); 652 } 653 } 654 655 sal_Bool bRet = sal_False; 656 if( pFndShell ) 657 { 658 sfx2::SvLinkSource* pNewSrc = pFndShell->DdeCreateLinkSource( sItem ); 659 if( pNewSrc ) 660 { 661 bRet = sal_True; 662 663 ::com::sun::star::datatransfer::DataFlavor aFl; 664 SotExchange::GetFormatDataFlavor( pLink->GetContentType(), aFl ); 665 666 pLink->SetObj( pNewSrc ); 667 pNewSrc->AddDataAdvise( pLink, aFl.MimeType, 668 sfx2::LINKUPDATE_ONCALL == pLink->GetUpdateMode() 669 ? ADVISEMODE_ONLYONCE 670 : 0 ); 671 } 672 } 673 return bRet; 674 } 675 676 677 } 678