[gtk/dnd-gestures: 4/29] dnd: Patch up gtk_drag_get_source_widget

[Matthias Clasen <matthiasc src gnome org>]

commit b0f39aeee317b9aee72956b7de3140942db8563e
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Dec 31 17:01:09 2019 -0500

    dnd: Patch up gtk_drag_get_source_widget
    
    This is temporary until gtk_drag_dest_set users
    have been ported over.

 gtk/gtkdnd.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkdnd.c b/gtk/gtkdnd.c
index 17dbb49876..09c6863fe0 100644
--- a/gtk/gtkdnd.c
+++ b/gtk/gtkdnd.c
@@ -319,14 +319,19 @@ GtkWidget *
 gtk_drag_get_source_widget (GdkDrag *drag)
 {
   GtkDragSourceInfo *info;
+  GtkDragSource *source;
 
   g_return_val_if_fail (GDK_IS_DRAG (drag), NULL);
   
   info = gtk_drag_get_source_info (drag, FALSE);
-  if (info == NULL)
-    return NULL;
+  if (info)
+    return info->widget;
+
+  source = gtk_drag_get_source (drag);
+  if (source)
+    return gtk_drag_source_get_origin (source);
 
-  return info->widget;
+  return NULL;
 }
 
 /**