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Fix dragging always resulting in wxDragLink on OS X

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Commit f40e8bf uncovered a problem with dragging where when the
NSDragOperationLink bit is set in the drag mask (which by default always
is the case) the result is a wxDragLink operation instead of wxDragCopy
or wxDragMove. To fix this give priority to move and copy instead when
converting the drag mask to a wxDrag result.

This fixes copying through DND in wxRichTextCtrl.

See #13819.
This commit is contained in:
Dimitri Schoolwerth
2015-05-27 19:44:36 +04:00
parent f40e8bff69
commit 143a8203bd
1 changed files with 39 additions and 11 deletions
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50
src/osx/cocoa/window.mm
View File

@@ -1173,6 +1173,23 @@ unsigned int wxOnDraggingEnteredOrUpdated(wxWidgetCocoaImpl* viewImpl,
{
id <NSDraggingInfo>sender = (id <NSDraggingInfo>) s;
NSPasteboard *pboard = [sender draggingPasteboard];
/*
sourceDragMask contains a flag field with drag operations permitted by
the source:
NSDragOperationCopy = 1,
NSDragOperationLink = 2,
NSDragOperationGeneric = 4,
NSDragOperationPrivate = 8,
NSDragOperationMove = 16,
NSDragOperationDelete = 32
By default, pressing modifier keys changes sourceDragMask:
Control ANDs it with NSDragOperationLink (2)
Option ANDs it with NSDragOperationCopy (1)
Command ANDs it with NSDragOperationGeneric (4)
The end result can be a mask that's 0 (NSDragOperationNone).
*/
NSDragOperation sourceDragMask = [sender draggingSourceOperationMask];
wxWindow* wxpeer = viewImpl->GetWXPeer();
@@ -1183,16 +1200,26 @@ unsigned int wxOnDraggingEnteredOrUpdated(wxWidgetCocoaImpl* viewImpl,
if ( target == NULL )
return NSDragOperationNone;
wxDragResult result = wxDragNone;
NSPoint nspoint = [viewImpl->GetWXWidget() convertPoint:[sender draggingLocation] fromView:nil];
wxPoint pt = wxFromNSPoint( viewImpl->GetWXWidget(), nspoint );
if ( sourceDragMask & NSDragOperationLink )
result = wxDragLink;
else if ( sourceDragMask & NSDragOperationCopy )
result = wxDragCopy;
else if ( sourceDragMask & NSDragOperationMove )
/*
Convert the incoming mask to wxDragResult. This is a lossy conversion
because wxDragResult contains a single value and not a flag field.
When dragging the bottom part of the DND sample ("Drag text from here!")
sourceDragMask contains copy, link, generic, and private flags. Formerly
this would result in wxDragLink which is not what is expected for text.
Give precedence to the move and copy flag instead.
*/
wxDragResult result = wxDragNone;
if (sourceDragMask & NSDragOperationMove)
result = wxDragMove;
else if ( sourceDragMask & NSDragOperationCopy
|| sourceDragMask & NSDragOperationGeneric)
result = wxDragCopy;
else if (sourceDragMask & NSDragOperationLink)
result = wxDragLink;
PasteboardRef pboardRef;
PasteboardCreate((CFStringRef)[pboard name], &pboardRef);
@@ -1276,12 +1303,13 @@ bool wxWidgetCocoaImpl::performDragOperation(void* s, WXWidget WXUNUSED(slf), vo
NSPoint nspoint = [m_osxView convertPoint:[sender draggingLocation] fromView:nil];
wxPoint pt = wxFromNSPoint( m_osxView, nspoint );
if ( sourceDragMask & NSDragOperationLink )
result = wxDragLink;
else if ( sourceDragMask & NSDragOperationCopy )
result = wxDragCopy;
else if ( sourceDragMask & NSDragOperationMove )
if (sourceDragMask & NSDragOperationMove)
result = wxDragMove;
else if ( sourceDragMask & NSDragOperationCopy
|| sourceDragMask & NSDragOperationGeneric)
result = wxDragCopy;
else if (sourceDragMask & NSDragOperationLink)
result = wxDragLink;
PasteboardRef pboardRef;
PasteboardCreate((CFStringRef)[pboard name], &pboardRef);