[gtk+] stylecontext: Add gtk_style_context_add_named()

[Benjamin Otte <otte src gnome org>]

commit 72615a1b1673410f59afb77e5265926383a12b69
Author: Benjamin Otte <otte redhat com>
Date:   Sat Sep 5 06:58:17 2015 +0200

    stylecontext: Add gtk_style_context_add_named()
    
    This is an intermediate step for cssnode introduction. It gives a name
    for the node created by saving the style context.

 gtk/gtkstylecontext.c        |   40 ++++++++++++++++++++++++----------------
 gtk/gtkstylecontextprivate.h |    3 +++
 2 files changed, 27 insertions(+), 16 deletions(-)
---
diff --git a/gtk/gtkstylecontext.c b/gtk/gtkstylecontext.c
index 5d059a0..f099b54 100644
--- a/gtk/gtkstylecontext.c
+++ b/gtk/gtkstylecontext.c
@@ -1179,6 +1179,29 @@ gtk_style_context_get_parent (GtkStyleContext *context)
   return context->priv->parent;
 }
 
+void
+gtk_style_context_save_named (GtkStyleContext *context,
+                              const char      *name)
+{
+  GtkStyleContextPrivate *priv;
+  GtkCssNode *cssnode;
+
+  priv = context->priv;
+
+  /* Make sure we have the style existing. It is the
+   * parent of the new saved node after all. */
+  if (!gtk_style_context_is_saved (context))
+    gtk_style_context_lookup_style (context);
+
+  cssnode = gtk_css_transient_node_new (priv->cssnode);
+  gtk_css_node_set_parent (cssnode, gtk_style_context_get_root (context));
+  if (name)
+    gtk_css_node_set_name (cssnode, g_intern_string (name));
+
+  priv->saved_nodes = g_slist_prepend (priv->saved_nodes, priv->cssnode);
+  priv->cssnode = cssnode;
+}
+
 /**
  * gtk_style_context_save:
  * @context: a #GtkStyleContext
@@ -1196,24 +1219,9 @@ gtk_style_context_get_parent (GtkStyleContext *context)
 void
 gtk_style_context_save (GtkStyleContext *context)
 {
-  GtkStyleContextPrivate *priv;
-  GtkCssNode *cssnode;
-
   g_return_if_fail (GTK_IS_STYLE_CONTEXT (context));
 
-  priv = context->priv;
-
-  /* Make sure we have the style existing. It is the
-   * parent of the new saved node after all.
-   */
-  if (!gtk_style_context_is_saved (context))
-    gtk_style_context_lookup_style (context);
-
-  cssnode = gtk_css_transient_node_new (priv->cssnode);
-  gtk_css_node_set_parent (cssnode, gtk_style_context_get_root (context));
-
-  priv->saved_nodes = g_slist_prepend (priv->saved_nodes, priv->cssnode);
-  priv->cssnode = cssnode;
+  gtk_style_context_save_named (context, NULL);
 }
 
 /**
diff --git a/gtk/gtkstylecontextprivate.h b/gtk/gtkstylecontextprivate.h
index 4ba27fe..22ac942 100644
--- a/gtk/gtkstylecontextprivate.h
+++ b/gtk/gtkstylecontextprivate.h
@@ -36,6 +36,9 @@ const char *    gtk_style_context_get_id                     (GtkStyleContext *c
 GtkStyleProviderPrivate *
                 gtk_style_context_get_style_provider         (GtkStyleContext *context);
 
+void            gtk_style_context_save_named                 (GtkStyleContext *context,
+                                                              const char      *name);
+
 const GtkBitmask *
                 _gtk_style_context_get_changes               (GtkStyleContext *context);