[gtk+] customproperty: Implement assign vfunc

[Benjamin Otte <otte src gnome org>]

commit 81dfc2776e9a53a1b1f06df261b1e243481a9865
Author: Benjamin Otte <otte redhat com>
Date:   Wed Mar 28 05:15:48 2012 +0200

    customproperty: Implement assign vfunc
    
    I'm going to overwrite the GtkCssStyleProperty one, so better keep this
    one.

 gtk/gtkcsscustomproperty.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+), 0 deletions(-)
---
diff --git a/gtk/gtkcsscustomproperty.c b/gtk/gtkcsscustomproperty.c
index 9da425f..0f20c1f 100644
--- a/gtk/gtkcsscustomproperty.c
+++ b/gtk/gtkcsscustomproperty.c
@@ -24,6 +24,7 @@
 #include <string.h>
 
 #include "gtkcssstylefuncsprivate.h"
+#include "gtkstylepropertiesprivate.h"
 #include "gtkthemingengine.h"
 
 G_DEFINE_TYPE (GtkCssCustomProperty, _gtk_css_custom_property, GTK_TYPE_CSS_STYLE_PROPERTY)
@@ -101,12 +102,27 @@ gtk_css_custom_property_query (GtkStyleProperty   *property,
 }
 
 static void
+gtk_css_custom_property_assign (GtkStyleProperty   *property,
+                                GtkStyleProperties *props,
+                                GtkStateFlags       state,
+                                const GValue       *value)
+{
+  GtkCssValue *css_value = _gtk_css_value_new_from_gvalue (value);
+  _gtk_style_properties_set_property_by_property (props,
+                                                  GTK_CSS_STYLE_PROPERTY (property),
+                                                  state,
+                                                  css_value);
+  _gtk_css_value_unref (css_value);
+}
+
+static void
 _gtk_css_custom_property_class_init (GtkCssCustomPropertyClass *klass)
 {
   GtkStylePropertyClass *property_class = GTK_STYLE_PROPERTY_CLASS (klass);
 
   property_class->parse_value = gtk_css_custom_property_parse_value;
   property_class->query = gtk_css_custom_property_query;
+  property_class->assign = gtk_css_custom_property_assign;
 }
 
 static GtkCssValue *