stack: Update windows before allocating children

Doing things the other way around seems to cause problems in
some cases where children want to do different things depending
on the window position.

https://bugzilla.gnome.org/show_bug.cgi?id=758563

diff --git a/gtk/gtkstack.c b/gtk/gtkstack.c
index bc9e347899c79d8830c939660b5a4a7aee5a03df..09ee6560910963fd918b1255889783ed1909467c 100644 (file)
--- a/gtk/gtkstack.c
+++ b/gtk/gtkstack.c
@@ -2183,6 +2183,16 @@ gtk_stack_size_allocate (GtkWidget     *widget,
 
   gtk_widget_set_allocation (widget, allocation);
 
+  if (gtk_widget_get_realized (widget))
+    {
+      gdk_window_move_resize (priv->view_window,
+                              allocation->x, allocation->y,
+                              allocation->width, allocation->height);
+      gdk_window_move_resize (priv->bin_window,
+                              get_bin_window_x (stack, allocation), get_bin_window_y (stack, allocation),
+                              allocation->width, allocation->height);
+    }
+
   child_allocation.x = 0;
   child_allocation.y = 0;
   child_allocation.width = allocation->width;
@@ -2218,16 +2228,6 @@ gtk_stack_size_allocate (GtkWidget     *widget,
           gtk_widget_size_allocate (priv->visible_child->widget, &child_allocation);
         }
     }
-
-   if (gtk_widget_get_realized (widget))
-    {
-      gdk_window_move_resize (priv->view_window,
-                              allocation->x, allocation->y,
-                              allocation->width, allocation->height);
-      gdk_window_move_resize (priv->bin_window,
-                              get_bin_window_x (stack, allocation), get_bin_window_y (stack, allocation),
-                              allocation->width, allocation->height);
-    }
 }