src/mac/filedlg.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        filedlg.cpp
   3 // Purpose:     wxFileDialog
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "filedlg.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17 #include "wx/app.h"
  18 #include "wx/utils.h"
  19 #include "wx/dialog.h"
  20 #include "wx/filedlg.h"
  21 #include "wx/intl.h"
  22 #include "wx/tokenzr.h"
  23 #include "wx/filename.h"
  24
  25 #ifndef __DARWIN__
  26   #include "PLStringFuncs.h"
  27 #endif
  28
  29 #if !USE_SHARED_LIBRARY
  30 IMPLEMENT_CLASS(wxFileDialog, wxFileDialogBase)
  31 #endif
  32
  33 // begin wxmac
  34
  35 #include "wx/mac/private.h"
  36
  37 #include <Navigation.h>
  38
  39 #ifdef __DARWIN__
  40 #  include "MoreFilesX.h"
  41 #else
  42 #  include "MoreFiles.h"
  43 #  include "MoreFilesExtras.h"
  44 #endif
  45
  46 extern bool gUseNavServices ;
  47
  48 // the data we need to pass to our standard file hook routine
  49 // includes a pointer to the dialog, a pointer to the standard
  50 // file reply record (so we can inspect the current selection)
  51 // and a copy of the "previous" file spec of the reply record
  52 // so we can see if the selection has changed
  53
  54 struct OpenUserDataRec {
  55   int                currentfilter ;
  56   bool               saveMode ;
  57   wxArrayString      name ;
  58   wxArrayString      extensions ;
  59   wxArrayLong        filtermactypes ;
  60   wxString           defaultLocation;
  61 #if TARGET_CARBON
  62   CFArrayRef         menuitems ;
  63 #else
  64   NavMenuItemSpecArrayHandle menuitems ;
  65 #endif
  66 };
  67
  68 typedef struct OpenUserDataRec
  69 OpenUserDataRec, *OpenUserDataRecPtr;
  70
  71 static pascal void    NavEventProc(
  72                                 NavEventCallbackMessage        inSelector,
  73                                 NavCBRecPtr                    ioParams,
  74                                 NavCallBackUserData            ioUserData);
  75
  76 #if TARGET_CARBON
  77         static NavEventUPP    sStandardNavEventFilter = NewNavEventUPP(NavEventProc);
  78 #else
  79         static NavEventUPP    sStandardNavEventFilter = NewNavEventProc(NavEventProc);
  80 #endif
  81
  82 static pascal void
  83 NavEventProc(
  84     NavEventCallbackMessage        inSelector,
  85     NavCBRecPtr                    ioParams,
  86     NavCallBackUserData    ioUserData    )
  87 {
  88     OpenUserDataRec * data = ( OpenUserDataRec *) ioUserData ;
  89     if (inSelector == kNavCBEvent) {
  90 #if TARGET_CARBON
  91 #else
  92         wxTheApp->MacHandleOneEvent(ioParams->eventData.eventDataParms.event);
  93 #endif
  94     }
  95     else if ( inSelector == kNavCBStart )
  96     {
  97 #if TARGET_CARBON
  98         if (data && !(data->defaultLocation).IsEmpty())
  99         {
 100             // Set default location for the modern Navigation APIs
 101             // Apple Technical Q&A 1151
 102             FSSpec theFSSpec;
 103             wxMacFilename2FSSpec(data->defaultLocation, &theFSSpec);
 104             AEDesc theLocation = {typeNull, NULL};
 105             if (noErr == ::AECreateDesc(typeFSS, &theFSSpec, sizeof(FSSpec), &theLocation))
 106                 ::NavCustomControl(ioParams->context, kNavCtlSetLocation, (void *) &theLocation);
 107         }
 108 #else
 109         if ( data->menuitems )
 110             NavCustomControl(ioParams->context, kNavCtlSelectCustomType, &(*data->menuitems)[data->currentfilter]);
 111 #endif
 112     }
 113     else if ( inSelector == kNavCBPopupMenuSelect )
 114     {
 115         NavMenuItemSpec * menu = (NavMenuItemSpec *) ioParams->eventData.eventDataParms.param ;
 116 #if TARGET_CARBON
 117 #else
 118         if ( menu->menuCreator == 'WXNG' )
 119 #endif
 120         {
 121             data->currentfilter = menu->menuType ;
 122             if ( data->saveMode )
 123             {
 124                 int i = menu->menuType ;
 125                 wxString extension =  data->extensions[i].AfterLast('.') ;
 126                 extension.MakeLower() ;
 127                 wxString sfilename ;
 128
 129 #if TARGET_CARBON
 130                 wxMacCFStringHolder cfString( NavDialogGetSaveFileName( ioParams->context ) , false  );
 131                 sfilename = cfString.AsString() ;
 132 #else
 133                 Str255 filename ;
 134                 // get the current filename
 135                 NavCustomControl(ioParams->context, kNavCtlGetEditFileName, &filename);
 136                 sfilename = wxMacMakeStringFromPascal( filename ) ;
 137 #endif
 138
 139                 int pos = sfilename.Find('.', true) ;
 140                 if ( pos != wxNOT_FOUND )
 141                 {
 142                     sfilename = sfilename.Left(pos+1)+extension ;
 143 #if TARGET_CARBON
 144                     cfString = sfilename ;
 145                     NavDialogSetSaveFileName( ioParams->context , cfString ) ;
 146 #else
 147                     wxMacStringToPascal( sfilename , filename ) ;
 148                     NavCustomControl(ioParams->context, kNavCtlSetEditFileName, &filename);
 149 #endif
 150                 }
 151             }
 152         }
 153     }
 154 }
 155
 156
 157 void MakeUserDataRec(OpenUserDataRec    *myData , const wxString& filter )
 158 {
 159     myData->menuitems = NULL ;
 160     myData->currentfilter = 0 ;
 161     myData->saveMode = false ;
 162
 163     if ( filter && filter[0] )
 164     {
 165         wxString filter2(filter) ;
 166         int filterIndex = 0;
 167         bool isName = true ;
 168         wxString current ;
 169         for( unsigned int i = 0; i < filter2.Len() ; i++ )
 170         {
 171             if( filter2.GetChar(i) == wxT('|') )
 172             {
 173                 if( isName ) {
 174                     myData->name.Add( current ) ;
 175                 }
 176                 else {
 177                     myData->extensions.Add( current.MakeUpper() ) ;
 178                     ++filterIndex ;
 179                 }
 180                 isName = !isName ;
 181                 current = wxEmptyString ;
 182             }
 183             else
 184             {
 185                 current += filter2.GetChar(i) ;
 186             }
 187         }
 188         // we allow for compatibility reason to have a single filter expression (like *.*) without
 189         // an explanatory text, in that case the first part is name and extension at the same time
 190
 191         wxASSERT_MSG( filterIndex == 0 || !isName , wxT("incorrect format of format string") ) ;
 192         if ( current.IsEmpty() )
 193             myData->extensions.Add( myData->name[filterIndex] ) ;
 194         else
 195             myData->extensions.Add( current.MakeUpper() ) ;
 196         if ( filterIndex == 0 || isName )
 197             myData->name.Add( current.MakeUpper() ) ;
 198
 199         ++filterIndex ;
 200
 201         const size_t extCount = myData->extensions.GetCount();
 202         for ( size_t i = 0 ; i < extCount; i++ )
 203         {
 204             wxUint32 fileType;
 205             wxUint32 creator;
 206             wxString extension = myData->extensions[i];
 207
 208             if (extension.GetChar(0) == '*')
 209                 extension = extension.Mid(1);   // Remove leading *
 210
 211             if (extension.GetChar(0) == '.')
 212             {
 213                 extension = extension.Mid(1);   // Remove leading .
 214             }
 215
 216             if (wxFileName::MacFindDefaultTypeAndCreator( extension, &fileType, &creator ))
 217             {
 218                 myData->filtermactypes.Add( (OSType)fileType );
 219             }
 220             else
 221             {
 222                 myData->filtermactypes.Add( '****' ) ;          // We'll fail safe if it's not recognized
 223                 }
 224         }
 225     }
 226 }
 227
 228 static Boolean CheckFile( const wxString &filename , OSType type , OpenUserDataRecPtr data)
 229 {
 230     wxString file(filename) ;
 231     file.MakeUpper() ;
 232
 233     if ( data->extensions.GetCount() > 0 )
 234     {
 235         //for ( int i = 0 ; i < data->numfilters ; ++i )
 236         int i = data->currentfilter ;
 237         if ( data->extensions[i].Right(2) == wxT(".*") )
 238             return true ;
 239
 240         {
 241             if ( type == (OSType)data->filtermactypes[i] )
 242                 return true ;
 243
 244             wxStringTokenizer tokenizer( data->extensions[i] , wxT(";") ) ;
 245             while( tokenizer.HasMoreTokens() )
 246             {
 247                 wxString extension = tokenizer.GetNextToken() ;
 248                 if ( extension.GetChar(0) == '*' )
 249                     extension = extension.Mid(1) ;
 250
 251                 if ( file.Len() >= extension.Len() && extension == file.Right(extension.Len() ) )
 252                     return true ;
 253             }
 254         }
 255         return false ;
 256     }
 257     return true ;
 258 }
 259
 260 #ifndef __DARWIN__
 261 static pascal Boolean CrossPlatformFileFilter(CInfoPBPtr myCInfoPBPtr, void *dataPtr)
 262 {
 263     OpenUserDataRecPtr data = (OpenUserDataRecPtr) dataPtr ;
 264     // return true if this item is invisible or a file
 265
 266     Boolean visibleFlag;
 267     Boolean folderFlag;
 268
 269     visibleFlag = ! (myCInfoPBPtr->hFileInfo.ioFlFndrInfo.fdFlags & kIsInvisible);
 270     folderFlag = (myCInfoPBPtr->hFileInfo.ioFlAttrib & 0x10);
 271
 272     // because the semantics of the filter proc are "true means don't show
 273     // it" we need to invert the result that we return
 274
 275     if ( !visibleFlag )
 276         return true ;
 277
 278     if ( !folderFlag )
 279     {
 280         wxString file = wxMacMakeStringFromPascal( myCInfoPBPtr->hFileInfo.ioNamePtr ) ;
 281         return !CheckFile( file , myCInfoPBPtr->hFileInfo.ioFlFndrInfo.fdType , data ) ;
 282     }
 283
 284     return false ;
 285 }
 286 #endif
 287
 288 // end wxmac
 289
 290 wxFileDialog::wxFileDialog(wxWindow *parent, const wxString& message,
 291         const wxString& defaultDir, const wxString& defaultFileName, const wxString& wildCard,
 292         long style, const wxPoint& pos)
 293              :wxFileDialogBase(parent, message, defaultDir, defaultFileName, wildCard, style, pos)
 294 {
 295     wxASSERT_MSG( NavServicesAvailable() , wxT("Navigation Services are not running") ) ;
 296 }
 297
 298 pascal Boolean CrossPlatformFilterCallback (
 299     AEDesc *theItem,
 300     void *info,
 301     void *callBackUD,
 302     NavFilterModes filterMode
 303 )
 304 {
 305     bool display = true;
 306     OpenUserDataRecPtr data = (OpenUserDataRecPtr) callBackUD ;
 307
 308     if (filterMode == kNavFilteringBrowserList)
 309     {
 310         NavFileOrFolderInfo* theInfo = (NavFileOrFolderInfo*) info ;
 311         if ( !theInfo->isFolder )
 312         {
 313             if (theItem->descriptorType == typeFSS )
 314             {
 315                 FSSpec    spec;
 316                 memcpy( &spec , *theItem->dataHandle , sizeof(FSSpec) ) ;
 317                 wxString file = wxMacMakeStringFromPascal( spec.name ) ;
 318                 display = CheckFile( file , theInfo->fileAndFolder.fileInfo.finderInfo.fdType , data ) ;
 319             }
 320  #if TARGET_CARBON
 321             else if ( theItem->descriptorType == typeFSRef )
 322             {
 323                 FSRef fsref ;
 324                 memcpy( &fsref , *theItem->dataHandle , sizeof(FSRef) ) ;
 325                 wxString file ;
 326                 const short maxpath = 1024 ;
 327                 FSRefMakePath( &fsref , (UInt8*) file.GetWriteBuf(maxpath+1),maxpath) ;
 328                 file.UngetWriteBuf() ;
 329                 display = CheckFile( file , theInfo->fileAndFolder.fileInfo.finderInfo.fdType , data ) ;
 330             }
 331 #endif
 332         }
 333     }
 334
 335     return display;
 336 }
 337
 338 int wxFileDialog::ShowModal()
 339 {
 340 #if TARGET_CARBON
 341     OSErr err;
 342     NavDialogCreationOptions dialogCreateOptions;
 343     // set default options
 344     ::NavGetDefaultDialogCreationOptions(&dialogCreateOptions);
 345
 346     // this was always unset in the old code
 347     dialogCreateOptions.optionFlags &= ~kNavSelectDefaultLocation;
 348
 349 #if wxUSE_UNICODE
 350     // tried using wxMacCFStringHolder in the code below, but it seems
 351     // the CFStrings were being released before the save dialog was called,
 352     // causing a crash - open dialog works fine with or without wxMacCFStringHolder
 353     CFStringRef titleRef = ::CFStringCreateWithCharacters( kCFAllocatorDefault,
 354                                 (const unsigned short*)m_message.wc_str(),
 355                                 m_message.Len() );
 356 #else
 357     CFStringRef titleRef = ::CFStringCreateWithCString(NULL,
 358                                                        m_message.c_str(),
 359                                                        CFStringGetSystemEncoding());
 360 #endif
 361     dialogCreateOptions.windowTitle = titleRef;
 362 #if wxUSE_UNICODE
 363     CFStringRef defaultFileNameRef = ::CFStringCreateWithCharacters( kCFAllocatorDefault,
 364                                         (const unsigned short*)m_fileName.wc_str(),
 365                                         m_fileName.Len() );
 366 #else
 367     CFStringRef defaultFileNameRef = ::CFStringCreateWithCString(NULL,
 368                                                                  m_fileName.c_str(),
 369                                                                  CFStringGetSystemEncoding());
 370 #endif
 371     dialogCreateOptions.saveFileName = defaultFileNameRef;
 372     NavDialogRef dialog;
 373     NavObjectFilterUPP navFilterUPP = NULL;
 374     CFArrayRef cfArray = NULL; // for popupExtension
 375     OpenUserDataRec myData;
 376     myData.defaultLocation = m_dir;
 377
 378     if (m_dialogStyle & wxSAVE)
 379     {
 380         dialogCreateOptions.optionFlags |= kNavNoTypePopup;
 381         dialogCreateOptions.optionFlags |= kNavDontAutoTranslate;
 382         dialogCreateOptions.optionFlags |= kNavDontAddTranslateItems;
 383
 384         // The extension is important
 385         dialogCreateOptions.optionFlags |= kNavPreserveSaveFileExtension;
 386
 387         err = ::NavCreatePutFileDialog(&dialogCreateOptions,
 388                                        'TEXT',
 389                                        'TEXT',
 390                                        sStandardNavEventFilter,
 391                                        &myData, // for defaultLocation
 392                                        &dialog);
 393     }
 394     else
 395     {
 396         MakeUserDataRec(&myData , m_wildCard);
 397         size_t numfilters = myData.extensions.GetCount();
 398         if (numfilters > 0)
 399         {
 400             CFMutableArrayRef popup = CFArrayCreateMutable( kCFAllocatorDefault ,
 401                 numfilters , &kCFTypeArrayCallBacks ) ;
 402             dialogCreateOptions.popupExtension = popup ;
 403             myData.menuitems = dialogCreateOptions.popupExtension ;
 404             for ( size_t i = 0 ; i < numfilters ; ++i )
 405             {
 406                 CFArrayAppendValue( popup , (CFStringRef) wxMacCFStringHolder( myData.name[i] ) ) ;
 407             }
 408         }
 409
 410         navFilterUPP = NewNavObjectFilterUPP(CrossPlatformFilterCallback);
 411         err = ::NavCreateGetFileDialog(&dialogCreateOptions,
 412                                        NULL, // NavTypeListHandle
 413                                        sStandardNavEventFilter,
 414                                        NULL, // NavPreviewUPP
 415                                        navFilterUPP,
 416                                        (void *) &myData, // inClientData
 417                                        &dialog);
 418     }
 419
 420     if (err == noErr)
 421         err = ::NavDialogRun(dialog);
 422
 423     // clean up filter related data, etc.
 424     if (navFilterUPP)
 425         ::DisposeNavObjectFilterUPP(navFilterUPP);
 426     if (cfArray)
 427     {
 428         CFIndex n = ::CFArrayGetCount(cfArray);
 429         for (CFIndex i = 0; i < n; i++)
 430         {
 431             CFStringRef str = (CFStringRef) ::CFArrayGetValueAtIndex(cfArray, i);
 432             if (str)
 433                 ::CFRelease(str);
 434         }
 435         ::CFRelease(cfArray);
 436     }
 437     if (titleRef)
 438         ::CFRelease(titleRef);
 439     if (defaultFileNameRef)
 440         ::CFRelease(defaultFileNameRef);
 441     if (err != noErr)
 442         return wxID_CANCEL;
 443
 444     NavReplyRecord navReply;
 445     err = ::NavDialogGetReply(dialog, &navReply);
 446     if (err == noErr && navReply.validRecord)
 447     {
 448         AEKeyword   theKeyword;
 449         DescType    actualType;
 450         Size        actualSize;
 451         FSRef       theFSRef;
 452         wxString thePath ;
 453         long count;
 454         ::AECountItems(&navReply.selection , &count);
 455         for (long i = 1; i <= count; ++i)
 456         {
 457             err = ::AEGetNthPtr(&(navReply.selection), 1, typeFSRef, &theKeyword, &actualType,
 458                                 &theFSRef, sizeof(theFSRef), &actualSize);
 459             if (err != noErr)
 460                 break;
 461
 462             CFURLRef fullURLRef;
 463             if (m_dialogStyle & wxSAVE)
 464             {
 465                 CFURLRef parentURLRef = ::CFURLCreateFromFSRef(NULL, &theFSRef);
 466
 467                 if (parentURLRef)
 468                 {
 469                     fullURLRef =
 470                         ::CFURLCreateCopyAppendingPathComponent(NULL,
 471                                                                 parentURLRef,
 472                                                                 navReply.saveFileName,
 473                                                                 false);
 474                     ::CFRelease(parentURLRef);
 475                 }
 476             }
 477             else
 478             {
 479                 fullURLRef = ::CFURLCreateFromFSRef(NULL, &theFSRef);
 480             }
 481 #ifdef __UNIX__
 482             CFURLPathStyle pathstyle = kCFURLPOSIXPathStyle;
 483 #else
 484             CFURLPathStyle pathstyle = kCFURLHFSPathStyle;
 485 #endif
 486             CFStringRef cfString = CFURLCopyFileSystemPath(fullURLRef, pathstyle);
 487             thePath = wxMacCFStringHolder(cfString).AsString();
 488             if (!thePath)
 489             {
 490                 ::NavDisposeReply(&navReply);
 491                 return wxID_CANCEL;
 492             }
 493             m_path = thePath;
 494             m_paths.Add(m_path);
 495             m_fileName = wxFileNameFromPath(m_path);
 496             m_fileNames.Add(m_fileName);
 497         }
 498         // set these to the first hit
 499         m_path = m_paths[0];
 500         m_fileName = wxFileNameFromPath(m_path);
 501         m_dir = wxPathOnly(m_path);
 502     }
 503     ::NavDisposeReply(&navReply);
 504
 505     return (err == noErr) ? wxID_OK : wxID_CANCEL;
 506 #else // TARGET_CARBON
 507
 508     NavDialogOptions           mNavOptions;
 509     NavObjectFilterUPP           mNavFilterUPP = NULL;
 510     NavPreviewUPP           mNavPreviewUPP = NULL ;
 511     NavReplyRecord           mNavReply;
 512     AEDesc               mDefaultLocation ;
 513     bool               mSelectDefault = false ;
 514     OSStatus            err = noErr ;
 515     // setup dialog
 516
 517     mNavFilterUPP    = nil;
 518     mNavPreviewUPP    = nil;
 519     mSelectDefault    = false;
 520     mDefaultLocation.descriptorType = typeNull;
 521     mDefaultLocation.dataHandle     = nil;
 522
 523     NavGetDefaultDialogOptions(&mNavOptions);
 524     wxMacStringToPascal( m_message , (StringPtr)mNavOptions.message ) ;
 525     wxMacStringToPascal( m_fileName , (StringPtr)mNavOptions.savedFileName ) ;
 526
 527     // Set default location, the location
 528     //   that's displayed when the dialog
 529     //   first appears
 530
 531     FSSpec location ;
 532     wxMacFilename2FSSpec( m_dir , &location ) ;
 533
 534     err = ::AECreateDesc(typeFSS, &location, sizeof(FSSpec), &mDefaultLocation );
 535
 536     if ( mDefaultLocation.dataHandle )
 537     {
 538         if (mSelectDefault)
 539         {
 540             mNavOptions.dialogOptionFlags |= kNavSelectDefaultLocation;
 541         } else {
 542             mNavOptions.dialogOptionFlags &= ~kNavSelectDefaultLocation;
 543         }
 544     }
 545
 546     memset( &mNavReply , 0 , sizeof( mNavReply ) ) ;
 547     mNavReply.validRecord = false;
 548     mNavReply.replacing = false;
 549     mNavReply.isStationery = false;
 550     mNavReply.translationNeeded = false;
 551     mNavReply.selection.descriptorType = typeNull;
 552     mNavReply.selection.dataHandle = nil;
 553     mNavReply.keyScript = smSystemScript;
 554     mNavReply.fileTranslation = nil;
 555     mNavReply.version = kNavReplyRecordVersion ;
 556
 557     // zero all data
 558
 559     m_path = wxEmptyString ;
 560     m_fileName = wxEmptyString ;
 561     m_paths.Empty();
 562     m_fileNames.Empty();
 563
 564     OpenUserDataRec            myData;
 565     MakeUserDataRec( &myData , m_wildCard ) ;
 566     myData.currentfilter = m_filterIndex ;
 567     if ( myData.extensions.GetCount() > 0 )
 568     {
 569         mNavOptions.popupExtension = (NavMenuItemSpecArrayHandle) NewHandle( sizeof( NavMenuItemSpec ) * myData.extensions.GetCount() ) ;
 570         myData.menuitems = mNavOptions.popupExtension ;
 571         for ( size_t i = 0 ; i < myData.extensions.GetCount() ; ++i )
 572         {
 573             (*mNavOptions.popupExtension)[i].version     = kNavMenuItemSpecVersion ;
 574             (*mNavOptions.popupExtension)[i].menuCreator = 'WXNG' ;
 575             // TODO : according to the new docs  -1 to 10 are reserved for the OS
 576             (*mNavOptions.popupExtension)[i].menuType    = i ;
 577             wxMacStringToPascal( myData.name[i] , (StringPtr)(*mNavOptions.popupExtension)[i].menuItemName ) ;
 578         }
 579     }
 580     if ( m_dialogStyle & wxSAVE )
 581     {
 582         myData.saveMode = true ;
 583
 584         mNavOptions.dialogOptionFlags |= kNavDontAutoTranslate ;
 585         mNavOptions.dialogOptionFlags |= kNavDontAddTranslateItems ;
 586
 587         err = ::NavPutFile(
 588                            &mDefaultLocation,
 589                            &mNavReply,
 590                            &mNavOptions,
 591                            sStandardNavEventFilter ,
 592                            NULL,
 593                            kNavGenericSignature,
 594                            &myData);                    // User Data
 595         m_filterIndex = myData.currentfilter ;
 596     }
 597     else
 598     {
 599         myData.saveMode = false ;
 600
 601         mNavFilterUPP = NewNavObjectFilterUPP( CrossPlatformFilterCallback ) ;
 602         if ( m_dialogStyle & wxMULTIPLE )
 603             mNavOptions.dialogOptionFlags |= kNavAllowMultipleFiles ;
 604         else
 605             mNavOptions.dialogOptionFlags &= ~kNavAllowMultipleFiles ;
 606
 607         err = ::NavGetFile(
 608                            &mDefaultLocation,
 609                            &mNavReply,
 610                            &mNavOptions,
 611                            sStandardNavEventFilter ,
 612                            mNavPreviewUPP,
 613                            mNavFilterUPP,
 614                            NULL ,
 615                            &myData);
 616         m_filterIndex = myData.currentfilter ;
 617     }
 618
 619     DisposeNavObjectFilterUPP(mNavFilterUPP);
 620     if ( mDefaultLocation.dataHandle != nil )
 621     {
 622         ::AEDisposeDesc(&mDefaultLocation);
 623     }
 624
 625     if ( (err != noErr) && (err != userCanceledErr) ) {
 626         return wxID_CANCEL ;
 627     }
 628
 629     if (mNavReply.validRecord)
 630     {
 631         FSSpec  outFileSpec ;
 632         AEDesc specDesc ;
 633         AEKeyword keyWord ;
 634
 635         long count ;
 636         ::AECountItems( &mNavReply.selection , &count ) ;
 637         for ( long i = 1 ; i <= count ; ++i )
 638         {
 639             OSErr err = ::AEGetNthDesc( &mNavReply.selection , i , typeFSS, &keyWord , &specDesc);
 640             if ( err != noErr )
 641             {
 642                 m_path = wxT("") ;
 643                 return wxID_CANCEL ;
 644             }
 645             outFileSpec = **(FSSpec**) specDesc.dataHandle;
 646             if (specDesc.dataHandle != nil) {
 647                 ::AEDisposeDesc(&specDesc);
 648             }
 649             m_path = wxMacFSSpec2MacFilename( &outFileSpec ) ;
 650
 651             m_paths.Add( m_path ) ;
 652             m_fileName = wxFileNameFromPath(m_path);
 653             m_fileNames.Add(m_fileName);
 654         }
 655         // set these to the first hit
 656         m_path = m_paths[ 0 ] ;
 657         m_fileName = wxFileNameFromPath(m_path);
 658         m_dir = wxPathOnly(m_path);
 659         NavDisposeReply( &mNavReply ) ;
 660         return wxID_OK ;
 661     }
 662     return wxID_CANCEL;
 663 #endif // TARGET_CARBON
 664 }
 665