[gtk/wip/matthiasc/popup4: 24/140] main: guard window-specific code paths

[Matthias Clasen <matthiasc src gnome org>]

commit 7d2e3843c6b161fda17c7ef13fb1254a7db2a2d2
Author: Matthias Clasen <mclasen redhat com>
Date:   Sun Mar 3 17:42:36 2019 -0500

    main: guard window-specific code paths
    
    This was overlooked when I first tried to
    make things for GtkRoot.

 gtk/gtkmain.c | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 22513d95c3..7ce4880c7d 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1857,6 +1857,7 @@ gtk_main_do_event (GdkEvent *event)
       GtkWidget *focus_widget;
 
       if (event->any.type == GDK_KEY_PRESS &&
+          GTK_IS_WINDOW (target_widget) &&
           gtk_window_activate_key (GTK_WINDOW (target_widget), (GdkEventKey *) event))
         goto cleanup;