[gtk+] Fix mouse interaction in combo cell renderer

[Matthias Clasen <matthiasc src gnome org>]

commit 163542f545138ad864c91b8cae93a8399c0c3d0d
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Apr 19 10:07:44 2013 -0400

    Fix mouse interaction in combo cell renderer
    
    Pass the event on when calling gtk_cell_editable_start_editing.
    https://bugzilla.gnome.org/show_bug.cgi?id=504901

 gtk/gtkcellarea.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkcellarea.c b/gtk/gtkcellarea.c
index df9c709..715e4ae 100644
--- a/gtk/gtkcellarea.c
+++ b/gtk/gtkcellarea.c
@@ -3440,7 +3440,7 @@ gtk_cell_area_activate_cell (GtkCellArea          *area,
           /* If the signal was successfully handled start the editing */
           if (gtk_widget_get_parent (GTK_WIDGET (editable_widget)))
             {
-              gtk_cell_editable_start_editing (editable_widget, NULL);
+              gtk_cell_editable_start_editing (editable_widget, event);
               gtk_widget_grab_focus (GTK_WIDGET (editable_widget));
             }
           else