range: Fix gadget state propagation

The contents node was not getting state updates at all, and the
trough node was missing some state updates as well, because we
were not calling update_trough_state() in all the places where
it is needed.

diff --git a/gtk/gtkrange.c b/gtk/gtkrange.c
index c85c20337a1d30c41e7cd47a8c8d38f9c9537a02..b9fada2dc74c21b9256efa401a79be6aa533b277 100644 (file)
--- a/gtk/gtkrange.c
+++ b/gtk/gtkrange.c
@@ -2302,6 +2302,8 @@ update_trough_state (GtkRange *range)
 
   state &= ~(GTK_STATE_FLAG_PRELIGHT | GTK_STATE_FLAG_ACTIVE);
 
+  gtk_css_gadget_set_state (priv->contents_gadget, state);
+
   if (priv->mouse_location == MOUSE_TROUGH && !(state & GTK_STATE_FLAG_INSENSITIVE))
     state |= GTK_STATE_FLAG_PRELIGHT;
 
@@ -2418,6 +2420,7 @@ range_grab_add (GtkRange      *range,
   priv->grab_location = location;
   gtk_range_queue_allocate_location (range, location);
 
+  update_trough_state (range);
   update_slider_state (range);
   update_steppers_state (range);
 
@@ -3473,6 +3476,7 @@ gtk_range_update_mouse_location (GtkRange *range)
       else
         gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_PRELIGHT, FALSE);
 
+      update_trough_state (range);
       update_slider_state (range);
       update_steppers_state (range);
     }