src/JsRender/Gtk.vala

diff --git a/src/JsRender/Gtk.vala b/src/JsRender/Gtk.vala
index 9997276..d055859 100644 (file)
--- a/src/JsRender/Gtk.vala
+++ b/src/JsRender/Gtk.vala
@@ -133,6 +133,9 @@ namespace JsRender {
                                var tree_base = ar.get_object_element(0);
                                this.tree = new Node();
                                this.tree.loadFromJson(tree_base, int.parse(bjs_version_str));
+                               this.tree.version_changed.connect(() {
+                                       this.updateUndo();
+                               });
 
                        }
                        this.gen_extended ?