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.

diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index 24cb3809237748fd929e9df99b2ebb75ab89b33e..8cca7a07dda7bb70d7b58c3991c0fb3cb98f4ca2 100644 (file)
--- 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;