cssvalue: Print an error when failing to parse background-position

... in the case where a completely invalid value was used.

diff --git a/gtk/gtkcsspositionvalue.c b/gtk/gtkcsspositionvalue.c
index 6f33de73a1e2a2c7881fb1d4fd9fcc402ebd84ab..09c845d2fc07e5c26f8ec401ba7bead57a117c1a 100644 (file)
--- a/gtk/gtkcsspositionvalue.c
+++ b/gtk/gtkcsspositionvalue.c
@@ -224,7 +224,10 @@ _gtk_css_position_value_parse (GtkCssParser *parser)
             return NULL;
         }
       else
-        return NULL;
+        {
+          _gtk_css_parser_error (parser, "Unrecognized position value");
+          return NULL;
+        }
     }
 
   for (second = 0; names[second].name != NULL; second++)