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Bug 658767 - Drag and Drop NSEvent capture is racy

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Create a synthetic NSMouseLeftDown to store in the GtkQuartzDragSourceInfo
rather than relying on the NSWindow's latest event being the right one (or the
right kind).
This commit is contained in:
John Ralls 2011-09-24 18:19:56 -07:00
parent 8ad3d2b296
commit 6906ab88bc
1 changed files with 45 additions and 9 deletions
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54
gtk/gtkdnd-quartz.c
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@ -1100,6 +1100,13 @@ gtk_drag_begin_idle (gpointer arg)
return FALSE;
}
/* Fake protocol to let us call GdkNSView gdkWindow without including
* gdk/GdkNSView.h (which we can't because it pulls in the internal-only
* gdkwindow.h).
*/
@protocol GdkNSView
- (GdkWindow *)gdkWindow;
@end
static GdkDragContext *
gtk_drag_begin_internal (GtkWidget *widget,
@ -1110,14 +1117,47 @@ gtk_drag_begin_internal (GtkWidget *widget,
GdkEvent *event)
{
GtkDragSourceInfo *info;
GdkDragContext *context;
GdkDevice *pointer;
NSWindow *nswindow;
GdkWindow *window;
GdkDragContext *context = gdk_drag_begin (gtk_widget_get_window (widget),
NULL);
NSWindow *nswindow = get_toplevel_nswindow (widget);
NSPoint point = {0, 0};
gdouble x, y;
double time = (double)g_get_real_time ();
NSEvent *nsevent;
NSTimeInterval nstime;
context = gdk_drag_begin (gtk_widget_get_window (widget), NULL);
if (event)
{
if (gdk_event_get_coords (event, &x, &y))
{
point.x = x;
point.y = y;
}
time = (double)gdk_event_get_time (event);
}
nstime = [[NSDate dateWithTimeIntervalSince1970: time / 1000] timeIntervalSinceReferenceDate];
nsevent = [NSEvent mouseEventWithType: NSLeftMouseDown
location: point
modifierFlags: 0
timestamp: nstime
windowNumber: [nswindow windowNumber]
context: [nswindow graphicsContext]
eventNumber: 0
clickCount: 1
pressure: 0.0 ];
window = [(id<GdkNSView>)[nswindow contentView] gdkWindow];
g_return_val_if_fail(nsevent != NULL, NULL);
context = gdk_drag_begin (window, NULL);
g_return_val_if_fail( context != NULL, NULL);
info = gtk_drag_get_source_info (context, TRUE);
info->nsevent = nsevent;
[info->nsevent retain];
info->source_widget = g_object_ref (widget);
info->widget = g_object_ref (widget);
info->target_list = target_list;
@ -1160,10 +1200,6 @@ gtk_drag_begin_internal (GtkWidget *widget,
}
}
nswindow = get_toplevel_nswindow (widget);
info->nsevent = [nswindow currentEvent];
[info->nsevent retain];
/* drag will begin in an idle handler to avoid nested run loops */
g_idle_add_full (G_PRIORITY_HIGH_IDLE, gtk_drag_begin_idle, context, NULL);
@ -1802,7 +1838,7 @@ gtk_drag_source_info_destroy (GtkDragSourceInfo *info)
pasteboard = [NSPasteboard pasteboardWithName: NSDragPboard];
[pasteboard declareTypes: nil owner: nil];
[pool relase];
[pool release];
gtk_drag_clear_source_info (info->context);
g_object_unref (info->context);