[gtk: 2/3] gtkmain: Terminate two loops early

[Emmanuele Bassi <ebassi src gnome org>]

commit 8a27302d56e4fb271103627d380499781b3e14ed
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Mon Dec 17 12:04:10 2018 -0500

    gtkmain: Terminate two loops early
    
    In propagate_event_{down,up}(), set handled_event to TRUE if a widget is
    unrealized, so as to terminate the corresponding loop early.
    
    See https://gitlab.gnome.org/GNOME/gtk/merge_requests/442

 gtk/gtkmain.c | 4 ++++
 1 file changed, 4 insertions(+)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index ecd9f44781..35a5e77003 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -2439,6 +2439,8 @@ propagate_event_up (GtkWidget *widget,
       else if (gtk_widget_get_realized (widget))
         handled_event = gtk_widget_event (widget, event);
 
+      handled_event |= !gtk_widget_get_realized (widget);
+
       tmp = gtk_widget_get_parent (widget);
       g_object_unref (widget);
 
@@ -2492,6 +2494,8 @@ propagate_event_down (GtkWidget *widget,
         }
       else if (gtk_widget_get_realized (widget))
         handled_event = _gtk_widget_captured_event (widget, event);
+
+      handled_event |= !gtk_widget_get_realized (widget);
     }
   g_list_free_full (widgets, (GDestroyNotify)g_object_unref);