X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/e9576ca53db96b462ed4c0b4bdf47d64c40203e4..851dee09b5ab50a69519a39b0f3f6b95b1a63373:/src/mac/carbon/dnd.cpp diff --git a/src/mac/carbon/dnd.cpp b/src/mac/carbon/dnd.cpp index 32088eef0f..ab82e4c481 100644 --- a/src/mac/carbon/dnd.cpp +++ b/src/mac/carbon/dnd.cpp @@ -1,92 +1,299 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: dnd.cpp -// Purpose: wxDropTarget, wxDropSource, wxDataObject implementation -// Author: AUTHOR +// Name: src/mac/carbon/dnd.cpp +// Purpose: wxDropTarget, wxDropSource implementations +// Author: Stefan Csomor // Modified by: -// Created: ??/??/98 +// Created: 1998-01-01 // RCS-ID: $Id$ -// Copyright: (c) 1998 AUTHOR +// Copyright: (c) 1998 Stefan Csomor // Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// -#ifdef __GNUG__ -#pragma implementation "dnd.h" -#endif +#include "wx/wxprec.h" + +#if wxUSE_DRAG_AND_DROP #include "wx/dnd.h" -#include "wx/window.h" -#include "wx/app.h" -#include "wx/gdicmn.h" -// ---------------------------------------------------------------------------- -// global -// ---------------------------------------------------------------------------- +#ifndef WX_PRECOMP + #include "wx/app.h" + #include "wx/window.h" +#endif // WX_PRECOMP -// ---------------------------------------------------------------------------- -// wxDropTarget -// ---------------------------------------------------------------------------- +#include "wx/toplevel.h" +#include "wx/gdicmn.h" +#include "wx/mac/private.h" -wxDropTarget::wxDropTarget() -{ -}; +#ifndef __DARWIN__ + #include +#endif -wxDropTarget::~wxDropTarget() -{ -}; // ---------------------------------------------------------------------------- -// wxTextDropTarget +// globals // ---------------------------------------------------------------------------- -bool wxTextDropTarget::OnDrop( long x, long y, const void *pData ) +typedef struct { - OnDropText( x, y, (const char*)pData ); - return TRUE; -}; + wxWindow *m_currentTargetWindow; + wxDropTarget *m_currentTarget; + wxDropSource *m_currentSource; +} +MacTrackingGlobals; -bool wxTextDropTarget::OnDropText( long x, long y, const char *psz ) -{ - printf( "Got dropped text: %s.\n", psz ); - printf( "At x: %d, y: %d.\n", (int)x, (int)y ); - return TRUE; -}; +MacTrackingGlobals gTrackingGlobals; -size_t wxTextDropTarget::GetFormatCount() const +void wxMacEnsureTrackingHandlersInstalled(); + +//---------------------------------------------------------------------------- +// wxDropTarget +//---------------------------------------------------------------------------- + +wxDropTarget::wxDropTarget( wxDataObject *data ) + : wxDropTargetBase( data ) { - return 1; + wxMacEnsureTrackingHandlersInstalled(); } -wxDataFormat wxTextDropTarget::GetFormat(size_t WXUNUSED(n)) const +wxDragResult wxDropTarget::OnDragOver( + wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), + wxDragResult def ) { - return wxDF_TEXT; + return CurrentDragHasSupportedFormat() ? def : wxDragNone; } -// ---------------------------------------------------------------------------- -// wxFileDropTarget -// ---------------------------------------------------------------------------- - -bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const WXUNUSED(aszFiles)[] ) +bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) ) { - printf( "Got %d dropped files.\n", (int)nFiles ); - printf( "At x: %d, y: %d.\n", (int)x, (int)y ); - return TRUE; + if (m_dataObject == NULL) + return false; + + return CurrentDragHasSupportedFormat(); } -bool wxFileDropTarget::OnDrop(long x, long y, const void *WXUNUSED(pData) ) +wxDragResult wxDropTarget::OnData( + wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), + wxDragResult def ) { - char *str = "/this/is/a/path.txt"; + if (m_dataObject == NULL) + return wxDragNone; + + if (!CurrentDragHasSupportedFormat()) + return wxDragNone; - return OnDropFiles(x, y, 1, &str ); + return GetData() ? def : wxDragNone; } -size_t wxFileDropTarget::GetFormatCount() const +bool wxDropTarget::CurrentDragHasSupportedFormat() { - return 1; + bool supported = false; + + if ( gTrackingGlobals.m_currentSource != NULL ) + { + wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject(); + + if ( data ) + { + size_t formatcount = data->GetFormatCount(); + wxDataFormat *array = new wxDataFormat[formatcount]; + data->GetAllFormats( array ); + for (size_t i = 0; !supported && i < formatcount; i++) + { + wxDataFormat format = array[i]; + if ( m_dataObject->IsSupported( format ) ) + { + supported = true; + break; + } + } + + delete [] array; + } + } + + if ( !supported ) + { + UInt16 items; + OSErr result; + ItemReference theItem; + FlavorType theType; + UInt16 flavors = 0; + + CountDragItems( (DragReference)m_currentDrag, &items ); + for (UInt16 index = 1; index <= items && !supported; ++index) + { + flavors = 0; + GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem ); + CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors ); + + for ( UInt16 flavor = 1; flavor <= flavors; ++flavor ) + { + result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType ); + if ( m_dataObject->IsSupportedFormat( wxDataFormat( theType ) ) ) + { + supported = true; + break; + } + } + } + } + + return supported; } -wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const +bool wxDropTarget::GetData() { - return wxDF_FILENAME; + if (m_dataObject == NULL) + return false; + + if ( !CurrentDragHasSupportedFormat() ) + return false; + + bool transferred = false; + if ( gTrackingGlobals.m_currentSource != NULL ) + { + wxDataObject* data = gTrackingGlobals.m_currentSource->GetDataObject(); + + if (data != NULL) + { + size_t formatcount = data->GetFormatCount(); + wxDataFormat *array = new wxDataFormat[formatcount]; + data->GetAllFormats( array ); + for (size_t i = 0; !transferred && i < formatcount; i++) + { + wxDataFormat format = array[i]; + if ( m_dataObject->IsSupported( format ) ) + { + int size = data->GetDataSize( format ); + transferred = true; + + if (size == 0) + { + m_dataObject->SetData( format, 0, 0 ); + } + else + { + char *d = new char[size]; + data->GetDataHere( format, (void*)d ); + m_dataObject->SetData( format, size, d ); + delete [] d; + } + } + } + + delete [] array; + } + } + + if ( !transferred ) + { + UInt16 items; + OSErr result; + ItemReference theItem; + FlavorType theType; + FlavorFlags theFlags; + UInt16 flavors; + wxString filenamesPassed; + + CountDragItems( (DragReference)m_currentDrag, &items ); + for (UInt16 index = 1; index <= items; ++index) + { + flavors = 0; + GetDragItemReferenceNumber( (DragReference)m_currentDrag, index, &theItem ); + CountDragItemFlavors( (DragReference)m_currentDrag, theItem, &flavors ); + wxDataFormat preferredFormat = m_dataObject->GetPreferredFormat( wxDataObject::Set ); + bool hasPreferredFormat = false; + + for (UInt16 flavor = 1; flavor <= flavors; ++flavor) + { + result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType ); + wxDataFormat format( theType ); + if (preferredFormat == format) + { + hasPreferredFormat = true; + break; + } + } + + for (UInt16 flavor = 1; flavor <= flavors; ++flavor) + { + result = GetFlavorType( (DragReference)m_currentDrag, theItem, flavor, &theType ); + wxDataFormat format( theType ); + if ((hasPreferredFormat && format == preferredFormat) + || (!hasPreferredFormat && m_dataObject->IsSupportedFormat( format ))) + { + result = GetFlavorFlags( (DragReference)m_currentDrag, theItem, theType, &theFlags ); + if (result == noErr) + { + Size dataSize; + Ptr theData; + + GetFlavorDataSize( (DragReference)m_currentDrag, theItem, theType, &dataSize ); + if (theType == kScrapFlavorTypeText) + { + // this increment is only valid for allocating: + // on the next GetFlavorData call it is reset again to the original value + dataSize++; + } + else if (theType == kScrapFlavorTypeUnicode) + { + // this increment is only valid for allocating: + // on the next GetFlavorData call it is reset again to the original value + dataSize++; + dataSize++; + } + + if (dataSize > 0) + theData = new char[dataSize]; + else + theData = NULL; + + GetFlavorData( (DragReference)m_currentDrag, theItem, theType, (void*)theData, &dataSize, 0L ); + switch (theType) + { + case kScrapFlavorTypeText: + theData[dataSize] = 0; + m_dataObject->SetData( wxDataFormat(wxDF_TEXT), dataSize, theData ); + break; + +#if wxUSE_UNICODE + case kScrapFlavorTypeUnicode: + theData[dataSize + 0] = + theData[dataSize + 1] = 0; + m_dataObject->SetData( wxDataFormat(wxDF_UNICODETEXT), dataSize, theData ); + break; +#endif + + case kDragFlavorTypeHFS: + if (theData != NULL) + { + HFSFlavor* theFile = (HFSFlavor*)theData; + wxString name = wxMacFSSpec2MacFilename( &theFile->fileSpec ); + + if (!name.empty()) + filenamesPassed += name + wxT("\n"); + } + break; + + default: + m_dataObject->SetData( format, dataSize, theData ); + break; + } + + delete [] theData; + } + break; + } + } + } + + if (filenamesPassed.Len() > 0) + { + wxCharBuffer buf = filenamesPassed.fn_str(); + m_dataObject->SetData( wxDataFormat(wxDF_FILENAME), strlen( buf ), (const char*)buf ); + } + } + + return true; } //------------------------------------------------------------------------- @@ -96,38 +303,407 @@ wxDataFormat wxFileDropTarget::GetFormat(size_t WXUNUSED(n)) const //----------------------------------------------------------------------------- // drag request -wxDropSource::wxDropSource( wxWindow *win ) +wxDropSource::wxDropSource(wxWindow *win, + const wxCursor &cursorCopy, + const wxCursor &cursorMove, + const wxCursor &cursorStop) + : wxDropSourceBase(cursorCopy, cursorMove, cursorStop) { - // TODO - // m_window = win; - m_data = NULL; + wxMacEnsureTrackingHandlersInstalled(); - // m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); - // m_goaheadCursor = wxCursor( wxCURSOR_HAND ); -}; + m_window = win; +} -wxDropSource::wxDropSource( wxDataObject &data, wxWindow *win ) +wxDropSource::wxDropSource(wxDataObject& data, + wxWindow *win, + const wxCursor &cursorCopy, + const wxCursor &cursorMove, + const wxCursor &cursorStop) + : wxDropSourceBase(cursorCopy, cursorMove, cursorStop) { - // TODO - // m_window = win; - m_data = &data; + wxMacEnsureTrackingHandlersInstalled(); - // m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY ); - // m_goaheadCursor = wxCursor( wxCURSOR_HAND ); -}; + SetData( data ); + m_window = win; +} -void wxDropSource::SetData( wxDataObject &data ) +wxDropSource::~wxDropSource() { - m_data = &data; -}; +} -wxDropSource::~wxDropSource(void) +wxDragResult wxDropSource::DoDragDrop(int flags) { -}; - -wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) ) + wxASSERT_MSG( m_data, wxT("Drop source: no data") ); + + if ((m_data == NULL) || (m_data->GetFormatCount() == 0)) + return (wxDragResult)wxDragNone; + + OSStatus result; + DragReference theDrag; + RgnHandle dragRegion; + + if ((result = NewDrag( &theDrag )) != noErr) + return wxDragNone; + + // add data to drag + size_t formatCount = m_data->GetFormatCount(); + wxDataFormat *formats = new wxDataFormat[formatCount]; + m_data->GetAllFormats( formats ); + ItemReference theItem = 1; + + for ( size_t i = 0; i < formatCount; ++i ) + { + size_t dataSize = m_data->GetDataSize( formats[i] ); + Ptr dataPtr = new char[dataSize]; + m_data->GetDataHere( formats[i], dataPtr ); + OSType type = formats[i].GetFormatId(); + if ( type == 'TEXT' || type == 'utxt' ) + { + if ( dataSize > 0 ) + dataSize--; + dataPtr[ dataSize ] = 0; + if ( type == 'utxt' ) + { + if ( dataSize > 0 ) + dataSize--; + dataPtr[ dataSize ] = 0; + } + + AddDragItemFlavor( theDrag, theItem, type, dataPtr, dataSize, 0 ); + } + else if (type == kDragFlavorTypeHFS ) + { + HFSFlavor theFlavor; + OSErr err = noErr; + CInfoPBRec cat; + + wxMacFilename2FSSpec( wxString( dataPtr, *wxConvCurrent ), &theFlavor.fileSpec ); + + memset( &cat, 0, sizeof(cat) ); + cat.hFileInfo.ioNamePtr = theFlavor.fileSpec.name; + cat.hFileInfo.ioVRefNum = theFlavor.fileSpec.vRefNum; + cat.hFileInfo.ioDirID = theFlavor.fileSpec.parID; + cat.hFileInfo.ioFDirIndex = 0; + err = PBGetCatInfoSync( &cat ); + if (err == noErr) + { + theFlavor.fdFlags = cat.hFileInfo.ioFlFndrInfo.fdFlags; + if (theFlavor.fileSpec.parID == fsRtParID) + { + theFlavor.fileCreator = 'MACS'; + theFlavor.fileType = 'disk'; + } + else if ((cat.hFileInfo.ioFlAttrib & ioDirMask) != 0) + { + theFlavor.fileCreator = 'MACS'; + theFlavor.fileType = 'fold'; + } + else + { + theFlavor.fileCreator = cat.hFileInfo.ioFlFndrInfo.fdCreator; + theFlavor.fileType = cat.hFileInfo.ioFlFndrInfo.fdType; + } + + AddDragItemFlavor( theDrag, theItem, type, &theFlavor, sizeof(theFlavor), 0 ); + } + } + else + { + AddDragItemFlavor( theDrag, theItem, type, dataPtr, dataSize, 0 ); + } + + delete [] dataPtr; + } + + delete [] formats; + + dragRegion = NewRgn(); + RgnHandle tempRgn = NewRgn(); + + EventRecord* ev = NULL; + +#if !TARGET_CARBON // TODO + ev = (EventRecord*) wxTheApp->MacGetCurrentEvent(); +#else + EventRecord rec; + ev = &rec; + wxMacConvertEventToRecord( (EventRef) wxTheApp->MacGetCurrentEvent(), &rec ); +#endif + + const short dragRegionOuterBoundary = 10; + const short dragRegionInnerBoundary = 9; + + SetRectRgn( + dragRegion, + ev->where.h - dragRegionOuterBoundary, + ev->where.v - dragRegionOuterBoundary, + ev->where.h + dragRegionOuterBoundary, + ev->where.v + dragRegionOuterBoundary ); + + SetRectRgn( + tempRgn, + ev->where.h - dragRegionInnerBoundary, + ev->where.v - dragRegionInnerBoundary, + ev->where.h + dragRegionInnerBoundary, + ev->where.v + dragRegionInnerBoundary ); + + DiffRgn( dragRegion, tempRgn, dragRegion ); + DisposeRgn( tempRgn ); + + // TODO: work with promises in order to return data + // only when drag was successfully completed + + gTrackingGlobals.m_currentSource = this; + result = TrackDrag( theDrag, ev, dragRegion ); + DisposeRgn( dragRegion ); + DisposeDrag( theDrag ); + gTrackingGlobals.m_currentSource = NULL; + + bool optionDown = GetCurrentKeyModifiers() & optionKey; + wxDragResult dndresult = wxDragCopy; + if ( flags != wxDrag_CopyOnly ) + // on mac the option key is always the indication for copy + dndresult = optionDown ? wxDragCopy : wxDragMove; + + return dndresult; +} + +bool wxDropSource::MacInstallDefaultCursor(wxDragResult effect) { - // TODO - return wxDragError; -}; + const wxCursor& cursor = GetCursor(effect); + bool result = cursor.Ok(); + + if ( result ) + cursor.MacInstall(); + + return result; +} + +bool gTrackingGlobalsInstalled = false; + +// passing the globals via refcon is not needed by the CFM and later architectures anymore +// but I'll leave it in there, just in case... + +pascal OSErr wxMacWindowDragTrackingHandler( + DragTrackingMessage theMessage, WindowPtr theWindow, + void *handlerRefCon, DragReference theDrag ); +pascal OSErr wxMacWindowDragReceiveHandler( + WindowPtr theWindow, void *handlerRefCon, + DragReference theDrag ); + +void wxMacEnsureTrackingHandlersInstalled() +{ + if ( !gTrackingGlobalsInstalled ) + { + OSStatus err; + + err = InstallTrackingHandler( NewDragTrackingHandlerUPP(wxMacWindowDragTrackingHandler), 0L, &gTrackingGlobals ); + verify_noerr( err ); + + err = InstallReceiveHandler( NewDragReceiveHandlerUPP(wxMacWindowDragReceiveHandler), 0L, &gTrackingGlobals ); + verify_noerr( err ); + + gTrackingGlobalsInstalled = true; + } +} + +pascal OSErr wxMacWindowDragTrackingHandler( + DragTrackingMessage theMessage, WindowPtr theWindow, + void *handlerRefCon, DragReference theDrag ) +{ + MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*) handlerRefCon; + + Point mouse, localMouse; + DragAttributes attributes; + + GetDragAttributes( theDrag, &attributes ); + wxTopLevelWindowMac* toplevel = wxFindWinFromMacWindow( theWindow ); + + bool optionDown = GetCurrentKeyModifiers() & optionKey; + wxDragResult result = optionDown ? wxDragCopy : wxDragMove; + + switch (theMessage) + { + case kDragTrackingEnterHandler: + case kDragTrackingLeaveHandler: + break; + + case kDragTrackingEnterWindow: + if (trackingGlobals != NULL) + { + trackingGlobals->m_currentTargetWindow = NULL; + trackingGlobals->m_currentTarget = NULL; + } + break; + + case kDragTrackingInWindow: + if (trackingGlobals == NULL) + break; + if (toplevel == NULL) + break; + + GetDragMouse( theDrag, &mouse, 0L ); + localMouse = mouse; + GlobalToLocal( &localMouse ); + + { + wxWindow *win = NULL; + ControlPartCode controlPart; + ControlRef control = wxMacFindControlUnderMouse( + toplevel, localMouse, theWindow, &controlPart ); + if ( control ) + win = wxFindControlFromMacControl( control ); + else + win = toplevel; + + int localx, localy; + localx = localMouse.h; + localy = localMouse.v; + + if ( win ) + win->MacRootWindowToWindow( &localx, &localy ); + if ( win != trackingGlobals->m_currentTargetWindow ) + { + if ( trackingGlobals->m_currentTargetWindow ) + { + // this window is left + if ( trackingGlobals->m_currentTarget ) + { + HideDragHilite( theDrag ); + trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ); + trackingGlobals->m_currentTarget->OnLeave(); + trackingGlobals->m_currentTarget = NULL; + trackingGlobals->m_currentTargetWindow = NULL; + } + } + + if ( win ) + { + // this window is entered + trackingGlobals->m_currentTargetWindow = win; + trackingGlobals->m_currentTarget = win->GetDropTarget(); + { + if ( trackingGlobals->m_currentTarget ) + { + trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ); + result = trackingGlobals->m_currentTarget->OnEnter( localx, localy, result ); + } + + if ( result != wxDragNone ) + { + int x, y; + + x = y = 0; + win->MacWindowToRootWindow( &x, &y ); + RgnHandle hiliteRgn = NewRgn(); + Rect r = { y, x, y + win->GetSize().y, x + win->GetSize().x }; + RectRgn( hiliteRgn, &r ); + ShowDragHilite( theDrag, hiliteRgn, true ); + DisposeRgn( hiliteRgn ); + } + } + } + } + else + { + if ( trackingGlobals->m_currentTarget ) + { + trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ); + trackingGlobals->m_currentTarget->OnDragOver( localx, localy, result ); + } + } + + // set cursor for OnEnter and OnDragOver + if ( trackingGlobals->m_currentSource && !trackingGlobals->m_currentSource->GiveFeedback( result ) ) + { + if ( !trackingGlobals->m_currentSource->MacInstallDefaultCursor( result ) ) + { + int cursorID = wxCURSOR_NONE; + + switch (result) + { + case wxDragCopy: + cursorID = wxCURSOR_COPY_ARROW; + break; + + case wxDragMove: + cursorID = wxCURSOR_ARROW; + break; + + case wxDragNone: + cursorID = wxCURSOR_NO_ENTRY; + break; + + case wxDragError: + case wxDragLink: + case wxDragCancel: + default: + // put these here to make gcc happy + ; + } + + if (cursorID != wxCURSOR_NONE) + { + wxCursor cursor( cursorID ); + cursor.MacInstall(); + } + } + } + } + break; + + case kDragTrackingLeaveWindow: + if (trackingGlobals == NULL) + break; + + if (trackingGlobals->m_currentTarget) + { + trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ); + trackingGlobals->m_currentTarget->OnLeave(); + HideDragHilite( theDrag ); + trackingGlobals->m_currentTarget = NULL; + } + trackingGlobals->m_currentTargetWindow = NULL; + break; + + default: + break; + } + + return noErr; +} + +pascal OSErr wxMacWindowDragReceiveHandler( + WindowPtr theWindow, + void *handlerRefCon, + DragReference theDrag) +{ + MacTrackingGlobals* trackingGlobals = (MacTrackingGlobals*)handlerRefCon; + if ( trackingGlobals->m_currentTarget ) + { + Point mouse, localMouse; + int localx, localy; + + trackingGlobals->m_currentTarget->SetCurrentDrag( theDrag ); + GetDragMouse( theDrag, &mouse, 0L ); + localMouse = mouse; + GlobalToLocal( &localMouse ); + localx = localMouse.h; + localy = localMouse.v; + + // TODO : should we use client coordinates? + if ( trackingGlobals->m_currentTargetWindow ) + trackingGlobals->m_currentTargetWindow->MacRootWindowToWindow( &localx, &localy ); + if ( trackingGlobals->m_currentTarget->OnDrop( localx, localy ) ) + { + bool optionDown = GetCurrentKeyModifiers() & optionKey; + wxDragResult result = optionDown ? wxDragCopy : wxDragMove; + trackingGlobals->m_currentTarget->OnData( localx, localy, result ); + } + } + + return noErr; +} + +#endif