cssnode: Split into 3 objects

- GtkCssWidgetNode
  for style contexts owned by a widget
- GtkCssPathNode
  for style contexts using a GtkWidgetPath
- GtkCssTransientNode
  for nodes created with gtk_style_context_save()/restore()

1 files changed, 82 insertions, 0 deletions

diff --git a/gtk/gtkcsstransientnode.c b/gtk/gtkcsstransientnode.c
new file mode 100644
index 0000000000..723c97a426
--- /dev/null
+++ b/gtk/gtkcsstransientnode.c
@@ -0,0 +1,82 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 2014 Benjamin Otte <otte@gnome.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include "gtkcsstransientnodeprivate.h"
+#include "gtkprivate.h"
+
+G_DEFINE_TYPE (GtkCssTransientNode, gtk_css_transient_node, GTK_TYPE_CSS_NODE)
+
+static GtkWidgetPath *
+gtk_css_transient_node_create_widget_path (GtkCssNode *node)
+{
+  GtkWidgetPath *result;
+  GtkCssNode *parent;
+
+  parent = gtk_css_node_get_parent (node);
+  if (parent == NULL)
+    result = gtk_widget_path_new ();
+  else
+    result = gtk_css_node_create_widget_path (parent);
+
+  gtk_widget_path_append_type (result, gtk_css_node_get_widget_type (node));
+  gtk_css_node_declaration_add_to_widget_path (gtk_css_node_get_declaration (node), result, -1);
+  
+  return result;
+}
+
+static const GtkWidgetPath *
+gtk_css_transient_node_get_widget_path (GtkCssNode *node)
+{
+  GtkCssNode *parent;
+
+  parent = gtk_css_node_get_parent (node);
+  if (parent == NULL)
+    return NULL;
+
+  return gtk_css_node_get_widget_path (parent);
+}
+
+static void
+gtk_css_transient_node_class_init (GtkCssTransientNodeClass *klass)
+{
+  GtkCssNodeClass *node_class = GTK_CSS_NODE_CLASS (klass);
+
+  node_class->create_widget_path = gtk_css_transient_node_create_widget_path;
+  node_class->get_widget_path = gtk_css_transient_node_get_widget_path;
+}
+
+static void
+gtk_css_transient_node_init (GtkCssTransientNode *cssnode)
+{
+}
+
+GtkCssNode *
+gtk_css_transient_node_new (GtkCssNode *parent)
+{
+  GtkCssNode *result;
+
+  gtk_internal_return_val_if_fail (GTK_IS_CSS_NODE (parent), NULL);
+
+  result = g_object_new (GTK_TYPE_CSS_TRANSIENT_NODE, NULL);
+  gtk_css_node_declaration_unref (result->decl);
+  result->decl = gtk_css_node_declaration_ref (parent->decl);
+
+  return result;
+}
+