[gitg] Use Gitg.UI.from_builder

[Jesse van den Kieboom <jessevdk src gnome org>]

commit de95b0f3d5c0f9570bcd8e9f86cbb30409e84cb6
Author: Jesse van den Kieboom <jessevdk gnome org>
Date:   Fri Nov 2 17:01:00 2012 +0100

    Use Gitg.UI.from_builder

 gitg/gitg-application.vala |    8 +++++---
 gitg/gitg-resource.vala    |   29 ++---------------------------
 2 files changed, 7 insertions(+), 30 deletions(-)
---
diff --git a/gitg/gitg-application.vala b/gitg/gitg-application.vala
index 58b35dc..5622237 100644
--- a/gitg/gitg-application.vala
+++ b/gitg/gitg-application.vala
@@ -269,10 +269,12 @@ public class Application : Gtk.Application
 	{
 		add_action_entries(app_entries, this);
 
-		MenuModel[] menus = Resource.load_objects<MenuModel>("ui/gitg-menus.ui", {"app-menu", "win-menu"});
+		MenuModel? menu = Resource.load_object<MenuModel>("ui/gitg-menus.ui", "app-menu");
 
-		set_app_menu(menus[0]);
-		//set_menubar(menus[1]);
+		if (menu != null)
+		{
+			set_app_menu(menu);
+		}
 	}
 
 	protected override void startup()
diff --git a/gitg/gitg-resource.vala b/gitg/gitg-resource.vala
index 8c17800..581f259 100644
--- a/gitg/gitg-resource.vala
+++ b/gitg/gitg-resource.vala
@@ -21,41 +21,16 @@ namespace Gitg
 {
 	class Resource
 	{
-		public static T[]? load_objects<T>(string id, string[] objects)
-		{
-			var builder = new Gtk.Builder();
-
-			try
-			{
-				builder.add_from_resource("/org/gnome/gitg/" + id);
-			}
-			catch (Error e)
-			{
-				warning("Error while loading resource: %s", e.message);
-				return null;
-			}
-
-			T[] ret = new T[objects.length];
-			ret.length = 0;
-
-			foreach (string obj in objects)
-			{
-				ret += (T)builder.get_object(obj);
-			}
-
-			return ret;
-		}
-
 		public static T? load_object<T>(string id, string object)
 		{
-			T[]? ret = load_objects<T>(id, new string[] {object});
+			var ret = GitgExt.UI.from_builder(id, object);
 
 			if (ret == null)
 			{
 				return null;
 			}
 
-			return ret[0];
+			return (T?)ret[object];
 		}
 
 		public static Gtk.CssProvider? load_css(string id)