[gtk+] notebook: inform the theme whether show-borders was set

[William Jon McCann <mccann src gnome org>]

commit 05b1ea84b49c7046073463a5a19fb8b0e02dd0cb
Author: William Jon McCann <william jon mccann gmail com>
Date:   Wed Oct 16 12:03:33 2013 -0400

    notebook: inform the theme whether show-borders was set
    
    So that it can draw a border or not. If show-borders=true then
    the notebook will have GTK_STYLE_CLASS_FRAME.

 gtk/gtknotebook.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtknotebook.c b/gtk/gtknotebook.c
index f958d82..2b0f914 100644
--- a/gtk/gtknotebook.c
+++ b/gtk/gtknotebook.c
@@ -5189,10 +5189,14 @@ gtk_notebook_paint (GtkWidget    *widget,
 
   if (priv->show_border && (!priv->show_tabs || !priv->children))
     {
+      gtk_style_context_save (context);
+      gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
+
       gtk_render_background (context, cr,
                              x, y, width, height);
       gtk_render_frame (context, cr,
                         x, y, width, height);
+      gtk_style_context_restore (context);
       return;
     }
 
@@ -5332,6 +5336,9 @@ gtk_notebook_paint (GtkWidget    *widget,
                         "has-tab-gap", &has_tab_gap,
                         NULL);
 
+  if (priv->show_border)
+    gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
+
   gtk_render_background (context, cr,
                          x, y, width, height);
   if (has_tab_gap)