[gtk/matthiasc/for-master: 9/10] Send focus events to the root

[Matthias Clasen <matthiasc src gnome org>]

commit 115ed005e615d5046c50e801f850c2490fe7b339
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Oct 8 23:06:07 2020 -0400

    Send focus events to the root
    
    We are not propagating focus change events, and that is the only
    place where we are listening for focus change events. If GtkWindow
    does not see focus-in events for its popovers, we end up with
    inadvertendly inactive windows.
    
    Fixes: #3240

 gtk/gtkmain.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/gtk/gtkmain.c b/gtk/gtkmain.c
index 10780b7684..bffb4cfa94 100644
--- a/gtk/gtkmain.c
+++ b/gtk/gtkmain.c
@@ -1648,8 +1648,11 @@ gtk_main_do_event (GdkEvent *event)
       break;
 
     case GDK_FOCUS_CHANGE:
-      if (!_gtk_widget_captured_event (target_widget, event, target_widget))
-        gtk_widget_event (target_widget, event, target_widget);
+      {
+        GtkWidget *root = GTK_WIDGET (gtk_widget_get_root (target_widget));
+        if (!_gtk_widget_captured_event (root, event, root))
+          gtk_widget_event (root, event, root);
+      }
       break;
 
     case GDK_KEY_PRESS: