[gtk/wip/carlosg/input-cleanups: 24/26] gtkwidget: Avoid use of shadowed flag

[Carlos Garnacho <carlosg src gnome org>]

commit 102d2a36f37e61421135473c403abcb3cd4d12e4
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Jun 24 18:24:12 2020 +0200

    gtkwidget: Avoid use of shadowed flag
    
    This is going away, look up whether there is a grab, and whether
    the widget is within it, instead.

 gtk/gtkwidget.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 9376fc83c9..edfed3a452 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -7573,8 +7573,18 @@ gtk_widget_propagate_state (GtkWidget          *widget,
 
   if (old_flags != new_flags)
     {
+      GtkWindowGroup *window_group;
+      GtkRoot *root;
+      GtkWidget *grab;
+      gboolean shadowed;
+
       g_object_ref (widget);
 
+      root = gtk_widget_get_root (widget);
+      window_group = gtk_window_get_group (GTK_WINDOW (root));
+      grab = gtk_window_group_get_current_grab (window_group);
+      shadowed = grab && grab != widget && !gtk_widget_is_ancestor (widget, grab);
+
       if (!gtk_widget_is_sensitive (widget) && gtk_widget_has_grab (widget))
         gtk_grab_remove (widget);
 
@@ -7582,7 +7592,7 @@ gtk_widget_propagate_state (GtkWidget          *widget,
 
       g_signal_emit (widget, widget_signals[STATE_FLAGS_CHANGED], 0, old_flags);
 
-      if (!priv->shadowed &&
+      if (!shadowed &&
           (new_flags & GTK_STATE_FLAG_INSENSITIVE) != (old_flags & GTK_STATE_FLAG_INSENSITIVE))
         {
           guint i, n_devices;