[gtk+] GtkWidget: Construct style for partial widget hierarchies.

[Carlos Garnacho <carlosg src gnome org>]

commit 6c549fecd3006b435be9d25eae1f8cabbc66efa5
Author: Carlos Garnacho <carlosg gnome org>
Date:   Mon Aug 2 16:11:40 2010 +0200

    GtkWidget: Construct style for partial widget hierarchies.
    
    Some unparented widgets like to ask style details, so now the style is
    constructed regardless of the parent being present or not, and then
    reconstructed if the parent changes.

 gtk/gtkwidget.c |   17 ++++++-----------
 1 files changed, 6 insertions(+), 11 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 24cb380..8cca7a0 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -13195,7 +13195,6 @@ gtk_widget_get_path (GtkWidget *widget)
   GList *regions, *reg;
 
   g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
-  g_return_val_if_fail ((widget->parent || gtk_widget_is_toplevel (widget)), NULL);
 
   parent = widget->priv->parent;
 
@@ -13254,6 +13253,7 @@ gtk_widget_get_style_context (GtkWidget *widget)
   if (G_UNLIKELY (!context))
     {
       static GtkCssProvider *css_provider = NULL;
+      GtkWidgetPath *path;
 
       context = g_object_new (GTK_TYPE_STYLE_CONTEXT, NULL);
       g_object_set_qdata_full (G_OBJECT (widget),
@@ -13284,18 +13284,13 @@ gtk_widget_get_style_context (GtkWidget *widget)
                                       GTK_STYLE_PROVIDER (css_provider),
                                       GTK_STYLE_PROVIDER_PRIORITY_USER);
 
-      if (widget->parent ||
-          gtk_widget_is_toplevel (widget))
-        {
-          GtkWidgetPath *path;
 
-          path = gtk_widget_get_path (widget);
-          gtk_style_context_set_path (context, path);
-          gtk_widget_path_free (path);
+      path = gtk_widget_get_path (widget);
+      gtk_style_context_set_path (context, path);
+      gtk_widget_path_free (path);
 
-          gtk_style_context_set_screen (context,
-                                        gtk_widget_get_screen (widget));
-        }
+      gtk_style_context_set_screen (context,
+                                    gtk_widget_get_screen (widget));
     }
 
   return context;