src/mac/carbon/dnd.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        dnd.cpp
   3 // Purpose:     wxDropTarget, wxDropSource implementations
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     1998-01-01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Stefan Csomor
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #include "wx/wxprec.h"
  13
  14 #if wxUSE_DRAG_AND_DROP
  15
  16 #include "wx/dnd.h"
  17 #include "wx/window.h"
  18 #include "wx/toplevel.h"
  19 #include "wx/app.h"
  20 #include "wx/gdicmn.h"
  21 #include "wx/mac/private.h"
  22
  23 #ifndef __DARWIN__
  24     #include <Scrap.h>
  25 #endif
  26
  27
  28 // ----------------------------------------------------------------------------
  29 // globals
  30 // ----------------------------------------------------------------------------
  31
  32 typedef struct
  33 {
  34     wxWindow *m_currentTargetWindow;
  35     wxDropTarget *m_currentTarget;
  36     wxDropSource *m_currentSource;
  37 }
  38 MacTrackingGlobals;
  39
  40 MacTrackingGlobals gTrackingGlobals;
  41
  42 void wxMacEnsureTrackingHandlersInstalled();
  43
  44 //----------------------------------------------------------------------------
  45 // wxDropTarget
  46 //----------------------------------------------------------------------------
  47
  48 wxDropTarget::wxDropTarget( wxDataObject *data )
  49             : wxDropTargetBase( data )
  50 {
  51     wxMacEnsureTrackingHandlersInstalled();
  52 }
  53
  54 wxDragResult wxDropTarget::OnDragOver(
  55     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
  56     wxDragResult def )
  57 {
  58     return CurrentDragHasSupportedFormat() ? def : wxDragNone;
  59 }
  60
  61 bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
  62 {
  63     if (m_dataObject == NULL)
  64         return false;
  65
  66     return CurrentDragHasSupportedFormat();
  67 }
  68
  69 wxDragResult wxDropTarget::OnData(
  70     wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
  71     wxDragResult def )
  72 {
  73     if (m_dataObject == NULL)
  74         return wxDragNone;
  75
  76     if (!CurrentDragHasSupportedFormat())
  77         return wxDragNone;
  78
  79     return GetData() ? def : wxDragNone;
  80 }
  81
  82 bool wxDropTarget::CurrentDragHasSupportedFormat()
  83 {
  84     bool supported = false;
  85
  86     if ( gTrackingGlobals.m_currentSource != NULL )
  87     {
  88         wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject();
  89
  90         if ( data )
  91         {
  92             size_t formatcount = data->GetFormatCount();
  93             wxDataFormat *array = new wxDataFormat[formatcount];
  94             data->GetAllFormats( array );
  95             for (size_t i = 0; !supported && i < formatcount; i++)
  96             {
  97                 wxDataFormat format = array[i];
  98                 if ( m_dataObject->IsSupported( format ) )
  99                 {
 100                     supported = true;
 101                     break;
 102                 }
 103             }
 104
 105             delete [] array;
 106         }
 107     }
 108
 109     if ( !supported )
 110     {
 111         UInt16 items;
 112         OSErr result;
 113         ItemReference theItem;
 114         FlavorType theType;
 115         UInt16 flavors = 0;
 116
 117         CountDragItems( (DragReference)m_currentDrag, &items );
 118         for (UInt16 index = 1; index <= items && !supported; ++index)
 119         {
 120             flavors = 0;
 121             GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem );
 122             CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors );
 123
 124             for ( UInt16 flavor = 1; flavor <= flavors; ++flavor )
 125             {
 126                 result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
 127                 if ( m_dataObject->IsSupportedFormat( wxDataFormat( theType ) ) )
 128                 {
 129                     supported = true;
 130                     break;
 131                 }
 132             }
 133         }
 134     }
 135
 136     return supported;
 137 }
 138
 139 bool wxDropTarget::GetData()
 140 {
 141     if (m_dataObject == NULL)
 142         return false;
 143
 144     if ( !CurrentDragHasSupportedFormat() )
 145         return false;
 146
 147     bool transferred = false;
 148     if ( gTrackingGlobals.m_currentSource != NULL )
 149     {
 150         wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject();
 151
 152         if (data != NULL)
 153         {
 154             size_t formatcount = data->GetFormatCount();
 155             wxDataFormat *array = new wxDataFormat[formatcount];
 156             data->GetAllFormats( array );
 157             for (size_t i = 0; !transferred && i < formatcount; i++)
 158             {
 159                 wxDataFormat format = array[i];
 160                 if ( m_dataObject->IsSupported( format ) )
 161                 {
 162                     int size = data->GetDataSize( format );
 163                     transferred = true;
 164
 165                     if (size == 0)
 166                     {
 167                         m_dataObject->SetData( format, 0, 0 );
 168                     }
 169                     else
 170                     {
 171                         char *d = new char[size];
 172                         data->GetDataHere( format, (void*)d );
 173                         m_dataObject->SetData( format, size, d );
 174                         delete [] d;
 175                     }
 176                 }
 177             }
 178
 179             delete [] array;
 180         }
 181     }
 182
 183     if ( !transferred )
 184     {
 185         UInt16 items;
 186         OSErr result;
 187         ItemReference theItem;
 188         FlavorType theType;
 189         FlavorFlags theFlags;
 190         UInt16 flavors;
 191         wxString filenamesPassed;
 192
 193         CountDragItems( (DragReference)m_currentDrag, &items );
 194         for (UInt16 index = 1; index <= items; ++index)
 195         {
 196             flavors = 0;
 197             GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem );
 198             CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors );
 199             wxDataFormat preferredFormat = m_dataObject->GetPreferredFormat( wxDataObject::Set );
 200             bool hasPreferredFormat = false;
 201
 202             for (UInt16 flavor = 1; flavor <= flavors; ++flavor)
 203             {
 204                 result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
 205                 wxDataFormat format( theType );
 206                 if (preferredFormat == format)
 207                 {
 208                     hasPreferredFormat = true;
 209                     break;
 210                 }
 211             }
 212
 213             for (UInt16 flavor = 1; flavor <= flavors; ++flavor)
 214             {
 215                 result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType );
 216                 wxDataFormat format( theType );
 217                 if ((hasPreferredFormat && format == preferredFormat)
 218                     || (!hasPreferredFormat && m_dataObject->IsSupportedFormat( format )))
 219                 {
 220                     result = GetFlavorFlags( (DragReference)m_currentDrag, theItem, theType, &theFlags );
 221                     if (result == noErr)
 222                     {
 223                         Size dataSize;
 224                         Ptr theData;
 225
 226                         GetFlavorDataSize( (DragReference)m_currentDrag, theItem, theType, &dataSize );
 227                         if (theType == kScrapFlavorTypeText)
 228                         {
 229                             // this increment is only valid for allocating:
 230                             // on the next GetFlavorData call it is reset again to the original value
 231                             dataSize++;
 232                         }
 233                         else if (theType == kScrapFlavorTypeUnicode)
 234                         {
 235                             // this increment is only valid for allocating:
 236                             // on the next GetFlavorData call it is reset again to the original value
 237                             dataSize++;
 238                             dataSize++;
 239                         }
 240
 241                         if (dataSize > 0)
 242                             theData = new char[dataSize];
 243                         else
 244                             theData = NULL;
 245
 246                         GetFlavorData( (DragReference)m_currentDrag, theItem, theType, (void*)theData, &dataSize, 0L );
 247                         switch (theType)
 248                         {
 249                         case kScrapFlavorTypeText:
 250                             theData[dataSize] = 0;
 251                             m_dataObject->SetData( wxDataFormat(wxDF_TEXT), dataSize, theData );
 252                             break;
 253
 254 #if wxUSE_UNICODE
 255                         case kScrapFlavorTypeUnicode:
 256                             theData[dataSize + 0] =
 257                             theData[dataSize + 1] = 0;
 258                             m_dataObject->SetData( wxDataFormat(wxDF_UNICODETEXT), dataSize, theData );
 259                             break;
 260 #endif
 261
 262                         case kDragFlavorTypeHFS:
 263                             if (theData != NULL)
 264                             {
 265                                 HFSFlavor* theFile = (HFSFlavor*)theData;
 266                                 wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec );
 267
 268                                 if (!name.IsEmpty())
 269                                     filenamesPassed += name + wxT("\n");
 270                             }
 271                             break;
 272
 273                         default:
 274                             m_dataObject->SetData( format, dataSize, theData );
 275                             break;
 276                         }
 277
 278                         delete [] theData;
 279                     }
 280                     break;
 281                 }
 282             }
 283         }
 284
 285         if (filenamesPassed.Len() > 0)
 286         {
 287             wxCharBuffer buf = filenamesPassed.fn_str();
 288             m_dataObject->SetData( wxDataFormat(wxDF_FILENAME), strlen( buf ), (const char*)buf );
 289         }
 290     }
 291
 292     return true;
 293 }
 294
 295 //-------------------------------------------------------------------------
 296 // wxDropSource
 297 //-------------------------------------------------------------------------
 298
 299 //-----------------------------------------------------------------------------
 300 // drag request
 301
 302 wxDropSource::wxDropSource(wxWindow *win,
 303                            const wxCursor &cursorCopy,
 304                            const wxCursor &cursorMove,
 305                            const wxCursor &cursorStop)
 306             : wxDropSourceBase(cursorCopy, cursorMove, cursorStop)
 307 {
 308     wxMacEnsureTrackingHandlersInstalled();
 309
 310     m_window = win;
 311 }
 312
 313 wxDropSource::wxDropSource(wxDataObject& data,
 314                            wxWindow *win,
 315                            const wxCursor &cursorCopy,
 316                            const wxCursor &cursorMove,
 317                            const wxCursor &cursorStop)
 318             : wxDropSourceBase(cursorCopy, cursorMove, cursorStop)
 319 {
 320     wxMacEnsureTrackingHandlersInstalled();
 321
 322     SetData( data );
 323     m_window = win;
 324 }
 325
 326 wxDropSource::~wxDropSource()
 327 {
 328 }
 329
 330 wxDragResult wxDropSource::DoDragDrop(int flags)
 331 {
 332     wxASSERT_MSG( m_data, wxT("Drop source: no data") );
 333
 334     if ((m_data == NULL) || (m_data->GetFormatCount() == 0))
 335         return (wxDragResult)wxDragNone;
 336
 337     OSStatus result;
 338     DragReference theDrag;
 339     RgnHandle dragRegion;
 340
 341     if ((result = NewDrag( &theDrag )) != noErr)
 342         return wxDragNone;
 343
 344     // add data to drag
 345     size_t formatCount = m_data->GetFormatCount();
 346     wxDataFormat *formats = new wxDataFormat[formatCount];
 347     m_data->GetAllFormats( formats );
 348     ItemReference theItem = 1;
 349
 350     for ( size_t i = 0; i < formatCount; ++i )
 351     {
 352         size_t dataSize = m_data->GetDataSize( formats[i] );
 353         Ptr dataPtr = new char[dataSize];
 354         m_data->GetDataHere( formats[i], dataPtr );
 355         OSType type = formats[i].GetFormatId();
 356         if ( type == 'TEXT' || type == 'utxt' )
 357         {
 358             if ( dataSize > 0 )
 359                 dataSize--;
 360             dataPtr[ dataSize ] = 0;
 361             if ( type == 'utxt' )
 362             {
 363                 if ( dataSize > 0 )
 364                     dataSize--;
 365                 dataPtr[ dataSize ] = 0;
 366             }
 367
 368             AddDragItemFlavor( theDrag, theItem, type, dataPtr, dataSize, 0 );
 369         }
 370         else if (type == kDragFlavorTypeHFS )
 371         {
 372             HFSFlavor  theFlavor;
 373             OSErr err = noErr;
 374             CInfoPBRec cat;
 375
 376             wxMacFilename2FSSpec( wxString( dataPtr, *wxConvCurrent ), &theFlavor.fileSpec );
 377
 378             memset( &cat, 0, sizeof(cat) );
 379             cat.hFileInfo.ioNamePtr = theFlavor.fileSpec.name;
 380             cat.hFileInfo.ioVRefNum = theFlavor.fileSpec.vRefNum;
 381             cat.hFileInfo.ioDirID = theFlavor.fileSpec.parID;
 382             cat.hFileInfo.ioFDirIndex = 0;
 383             err = PBGetCatInfoSync( &cat );
 384             if (err == noErr)
 385             {
 386                 theFlavor.fdFlags = cat.hFileInfo.ioFlFndrInfo.fdFlags;
 387                 if (theFlavor.fileSpec.parID == fsRtParID)
 388                 {
 389                     theFlavor.fileCreator = 'MACS';
 390                     theFlavor.fileType = 'disk';
 391                 }
 392                 else if ((cat.hFileInfo.ioFlAttrib & ioDirMask) != 0)
 393                 {
 394                     theFlavor.fileCreator = 'MACS';
 395                     theFlavor.fileType = 'fold';
 396                 }
 397                 else
 398                 {
 399                     theFlavor.fileCreator = cat.hFileInfo.ioFlFndrInfo.fdCreator;
 400                     theFlavor.fileType = cat.hFileInfo.ioFlFndrInfo.fdType;
 401                 }
 402
 403                 AddDragItemFlavor( theDrag, theItem, type, &theFlavor, sizeof(theFlavor), 0 );
 404             }
 405         }
 406         else
 407         {
 408             AddDragItemFlavor( theDrag, theItem, type, dataPtr, dataSize, 0 );
 409         }
 410
 411         delete [] dataPtr;
 412     }
 413
 414     delete [] formats;
 415
 416     dragRegion = NewRgn();
 417     RgnHandle tempRgn = NewRgn();
 418
 419     EventRecord* ev = NULL;
 420
 421 #if !TARGET_CARBON // TODO
 422     ev = (EventRecord*) wxTheApp->MacGetCurrentEvent();
 423 #else
 424     EventRecord rec;
 425     ev = &rec;
 426     wxMacConvertEventToRecord( (EventRef) wxTheApp->MacGetCurrentEvent(), &rec );
 427 #endif
 428
 429     const short dragRegionOuterBoundary = 10;
 430     const short dragRegionInnerBoundary = 9;
 431
 432     SetRectRgn(
 433         dragRegion,
 434         ev->where.h - dragRegionOuterBoundary,
 435         ev->where.v  - dragRegionOuterBoundary,
 436         ev->where.h + dragRegionOuterBoundary,
 437         ev->where.v + dragRegionOuterBoundary );
 438
 439     SetRectRgn(
 440         tempRgn,
 441         ev->where.h - dragRegionInnerBoundary,
 442         ev->where.v - dragRegionInnerBoundary,
 443         ev->where.h + dragRegionInnerBoundary,
 444         ev->where.v + dragRegionInnerBoundary );
 445
 446     DiffRgn( dragRegion, tempRgn, dragRegion );
 447     DisposeRgn( tempRgn );
 448
 449     // TODO: work with promises in order to return data
 450     // only when drag was successfully completed
 451
 452     gTrackingGlobals.m_currentSource = this;
 453     result = TrackDrag( theDrag, ev, dragRegion );
 454     DisposeRgn( dragRegion );
 455     DisposeDrag( theDrag );
 456     gTrackingGlobals.m_currentSource = NULL;
 457
 458     bool optionDown = GetCurrentKeyModifiers() & optionKey;
 459     wxDragResult dndresult = wxDragCopy;
 460     if ( flags != wxDrag_CopyOnly )
 461         // on mac the option key is always the indication for copy
 462         dndresult = optionDown ? wxDragCopy : wxDragMove;
 463
 464     return dndresult;
 465 }
 466
 467 bool wxDropSource::MacInstallDefaultCursor(wxDragResult effect)
 468 {
 469     const wxCursor& cursor = GetCursor(effect);
 470     bool result = cursor.Ok();
 471
 472     if ( result )
 473         cursor.MacInstall();
 474
 475     return result;
 476 }
 477
 478 bool gTrackingGlobalsInstalled = false;
 479
 480 // passing the globals via refcon is not needed by the CFM and later architectures anymore
 481 // but I'll leave it in there, just in case...
 482
 483 pascal OSErr wxMacWindowDragTrackingHandler(
 484     DragTrackingMessage theMessage, WindowPtr theWindow,
 485     void *handlerRefCon, DragReference theDrag );
 486 pascal OSErr wxMacWindowDragReceiveHandler(
 487     WindowPtr theWindow, void *handlerRefCon,
 488     DragReference theDrag );
 489
 490 void wxMacEnsureTrackingHandlersInstalled()
 491 {
 492     if ( !gTrackingGlobalsInstalled )
 493     {
 494         OSStatus err;
 495
 496         err = InstallTrackingHandler( NewDragTrackingHandlerUPP(wxMacWindowDragTrackingHandler), 0L, &gTrackingGlobals );
 497         verify_noerr( err );
 498
 499         err = InstallReceiveHandler( NewDragReceiveHandlerUPP(wxMacWindowDragReceiveHandler), 0L, &gTrackingGlobals );
 500         verify_noerr( err );
 501
 502         gTrackingGlobalsInstalled = true;
 503     }
 504 }
 505
 506 pascal OSErr wxMacWindowDragTrackingHandler(
 507     DragTrackingMessage theMessage, WindowPtr theWindow,
 508     void *handlerRefCon, DragReference theDrag )
 509 {
 510     MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon;
 511
 512     Point mouse, localMouse;
 513     DragAttributes attributes;
 514
 515     GetDragAttributes( theDrag, &attributes );
 516
 517     wxTopLevelWindowMac* toplevel = wxFindWinFromMacWindow( theWindow );
 518
 519     bool optionDown = GetCurrentKeyModifiers() & optionKey;
 520     wxDragResult result = optionDown ? wxDragCopy : wxDragMove;
 521
 522     switch (theMessage)
 523     {
 524         case kDragTrackingEnterHandler:
 525         case kDragTrackingLeaveHandler:
 526             break;
 527
 528         case kDragTrackingEnterWindow:
 529             if (trackingGlobals != NULL)
 530             {
 531                 trackingGlobals->m_currentTargetWindow = NULL;
 532                 trackingGlobals->m_currentTarget = NULL;
 533             }
 534             break;
 535
 536         case kDragTrackingInWindow:
 537             if (trackingGlobals == NULL)
 538                 break;
 539             if (toplevel == NULL)
 540                 break;
 541
 542             GetDragMouse( theDrag, &mouse, 0L );
 543             localMouse = mouse;
 544             GlobalToLocal( &localMouse );
 545
 546             {
 547                 wxWindow *win = NULL;
 548                 ControlPartCode controlPart;
 549                 ControlRef control = wxMacFindControlUnderMouse(
 550                     toplevel, localMouse, theWindow, &controlPart );
 551                 if ( control )
 552                     win = wxFindControlFromMacControl( control );
 553                 else
 554                     win = toplevel;
 555
 556                 int localx, localy;
 557                 localx = localMouse.h;
 558                 localy = localMouse.v;
 559
 560                 if ( win )
 561                     win->MacRootWindowToWindow( &localx, &localy );
 562                 if ( win != trackingGlobals->m_currentTargetWindow )
 563                 {
 564                     if ( trackingGlobals->m_currentTargetWindow )
 565                     {
 566                         // this window is left
 567                         if ( trackingGlobals->m_currentTarget )
 568                         {
 569                             HideDragHilite( theDrag );
 570                             trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
 571                             trackingGlobals->m_currentTarget->OnLeave();
 572                             trackingGlobals->m_currentTarget = NULL;
 573                             trackingGlobals->m_currentTargetWindow = NULL;
 574                         }
 575                     }
 576
 577                     if ( win )
 578                     {
 579                         // this window is entered
 580                         trackingGlobals->m_currentTargetWindow = win;
 581                         trackingGlobals->m_currentTarget = win->GetDropTarget();
 582                         {
 583                             if ( trackingGlobals->m_currentTarget )
 584                             {
 585                                 trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
 586                                 result = trackingGlobals->m_currentTarget->OnEnter( localx, localy, result );
 587                             }
 588
 589                             if ( result != wxDragNone )
 590                             {
 591                                 int x, y;
 592
 593                                 x = y = 0;
 594                                 win->MacWindowToRootWindow( &x, &y );
 595                                 RgnHandle hiliteRgn = NewRgn();
 596                                 Rect r = { y, x, y + win->GetSize().y, x + win->GetSize().x };
 597                                 RectRgn( hiliteRgn, &r );
 598                                 ShowDragHilite( theDrag, hiliteRgn, true );
 599                                 DisposeRgn( hiliteRgn );
 600                             }
 601                         }
 602                     }
 603                 }
 604                 else
 605                 {
 606                     if ( trackingGlobals->m_currentTarget )
 607                     {
 608                         trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
 609                         trackingGlobals->m_currentTarget->OnDragOver( localx, localy, result );
 610                     }
 611                 }
 612
 613                 // set cursor for OnEnter and OnDragOver
 614                 if ( trackingGlobals->m_currentSource && !trackingGlobals->m_currentSource->GiveFeedback( result ) )
 615                 {
 616                   if ( !trackingGlobals->m_currentSource->MacInstallDefaultCursor( result ) )
 617                   {
 618                       int cursorID = wxCURSOR_NONE;
 619
 620                       switch (result)
 621                       {
 622                           case wxDragCopy:
 623                               cursorID = wxCURSOR_COPY_ARROW;
 624                               break;
 625
 626                           case wxDragMove:
 627                               cursorID = wxCURSOR_ARROW;
 628                               break;
 629
 630                           case wxDragNone:
 631                               cursorID = wxCURSOR_NO_ENTRY;
 632                               break;
 633
 634                           case wxDragError:
 635                           case wxDragLink:
 636                           case wxDragCancel:
 637                           default:
 638                               // put these here to make gcc happy
 639                               ;
 640                       }
 641
 642                       if (cursorID != wxCURSOR_NONE)
 643                       {
 644                           wxCursor cursor( cursorID );
 645                           cursor.MacInstall();
 646                       }
 647                    }
 648                 }
 649             }
 650             break;
 651
 652         case kDragTrackingLeaveWindow:
 653             if (trackingGlobals == NULL)
 654                 break;
 655
 656             if (trackingGlobals->m_currentTarget)
 657             {
 658                 trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
 659                 trackingGlobals->m_currentTarget->OnLeave();
 660                 HideDragHilite( theDrag );
 661                 trackingGlobals->m_currentTarget = NULL;
 662             }
 663             trackingGlobals->m_currentTargetWindow = NULL;
 664             break;
 665
 666         default:
 667             break;
 668     }
 669
 670     return noErr;
 671 }
 672
 673 pascal OSErr wxMacWindowDragReceiveHandler(
 674     WindowPtr theWindow,
 675     void *handlerRefCon,
 676     DragReference theDrag)
 677 {
 678     MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*)handlerRefCon;
 679     if ( trackingGlobals->m_currentTarget )
 680     {
 681         Point mouse, localMouse;
 682         int localx, localy;
 683
 684         trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag );
 685         GetDragMouse( theDrag, &mouse, 0L );
 686         localMouse = mouse;
 687         GlobalToLocal( &localMouse );
 688         localx = localMouse.h;
 689         localy = localMouse.v;
 690
 691         // TODO : should we use client coordinates?
 692         if ( trackingGlobals->m_currentTargetWindow )
 693             trackingGlobals->m_currentTargetWindow->MacRootWindowToWindow( &localx, &localy );
 694         if ( trackingGlobals->m_currentTarget->OnDrop( localx, localy ) )
 695         {
 696             bool optionDown = GetCurrentKeyModifiers() & optionKey;
 697             wxDragResult result = optionDown ? wxDragCopy : wxDragMove;
 698             trackingGlobals->m_currentTarget->OnData( localx, localy, result );
 699         }
 700     }
 701
 702     return noErr;
 703 }
 704
 705 #endif