[gtk+] cssselector: Redo change verification

[Benjamin Otte <otte src gnome org>]

commit e2dddd62cf28edefddb5d2d2585d16a75e392c56
Author: Benjamin Otte <otte redhat com>
Date:   Tue Dec 9 03:21:13 2014 +0100

    cssselector: Redo change verification
    
    Instead of walking the selector tree, we walk the selectors.

 gtk/gtkcssprovider.c        |    2 +-
 gtk/gtkcssselector.c        |   25 ++++++++-----------------
 gtk/gtkcssselectorprivate.h |    2 +-
 3 files changed, 10 insertions(+), 19 deletions(-)
---
diff --git a/gtk/gtkcssprovider.c b/gtk/gtkcssprovider.c
index daadf04..6b02bef 100644
--- a/gtk/gtkcssprovider.c
+++ b/gtk/gtkcssprovider.c
@@ -1646,7 +1646,7 @@ verify_tree_get_change_results (GtkCssProvider *provider,
 
        ruleset = tree_rules->pdata[i];
 
-       verify_change |= _gtk_css_selector_tree_match_get_change (ruleset->selector_match);
+       verify_change |= _gtk_css_selector_get_change (ruleset->selector);
       }
 
     if (change != verify_change)
diff --git a/gtk/gtkcssselector.c b/gtk/gtkcssselector.c
index 9d629dd..fb2b7c2 100644
--- a/gtk/gtkcssselector.c
+++ b/gtk/gtkcssselector.c
@@ -1744,23 +1744,6 @@ _gtk_css_selector_to_string (const GtkCssSelector *selector)
   return g_string_free (string, FALSE);
 }
 
-
-GtkCssChange
-_gtk_css_selector_tree_match_get_change (const GtkCssSelectorTree *tree)
-{
-  GtkCssChange change = 0;
-
-  update_type_references ();
-
-  while (tree)
-    {
-      change = tree->selector.class->get_change (&tree->selector, change);
-      tree = gtk_css_selector_tree_get_parent (tree);
-    }
-
-  return change;
-}
-
 static gboolean
 gtk_css_selector_foreach_match (const GtkCssSelector *selector,
                                 const GtkCssMatcher  *matcher,
@@ -1843,6 +1826,14 @@ _gtk_css_selector_compare (const GtkCssSelector *a,
   return a_elements - b_elements;
 }
 
+GtkCssChange
+_gtk_css_selector_get_change (const GtkCssSelector *selector)
+{
+  if (selector == NULL)
+    return 0;
+
+  return selector->class->get_change (selector, _gtk_css_selector_get_change (gtk_css_selector_previous 
(selector)));
+}
 
 /******************** SelectorTree handling *****************/
 
diff --git a/gtk/gtkcssselectorprivate.h b/gtk/gtkcssselectorprivate.h
index af95b54..e23ae09 100644
--- a/gtk/gtkcssselectorprivate.h
+++ b/gtk/gtkcssselectorprivate.h
@@ -36,6 +36,7 @@ void              _gtk_css_selector_print           (const GtkCssSelector   *sel
 
 gboolean          _gtk_css_selector_matches         (const GtkCssSelector   *selector,
                                                      const GtkCssMatcher    *matcher);
+GtkCssChange      _gtk_css_selector_get_change      (const GtkCssSelector   *selector);
 int               _gtk_css_selector_compare         (const GtkCssSelector   *a,
                                                      const GtkCssSelector   *b);
 
@@ -46,7 +47,6 @@ GtkCssChange _gtk_css_selector_tree_get_change_all   (const GtkCssSelectorTree *
                                                      const GtkCssMatcher *matcher);
 void         _gtk_css_selector_tree_match_print      (const GtkCssSelectorTree *tree,
                                                      GString                  *str);
-GtkCssChange _gtk_css_selector_tree_match_get_change (const GtkCssSelectorTree *tree);
 
 
 GtkCssSelectorTreeBuilder *_gtk_css_selector_tree_builder_new   (void);