Move admin related controllers, views and helpers into the admin

subdirectory so that they're accessible in admin mode.

themes/three_nids/admin/helpers/three_nids_event.php

@@ -0,0 +1,29 @@
+<?php defined("SYSPATH") or die("No direct script access.");
+/**
+ * Gallery - a web based photo album viewer and editor
+ * Copyright (C) 2000-2009 Bharat Mediratta
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ *
+ * This program 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
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+class three_nids_event_Core {
+  static function admin_menu($menu, $theme) {
+    // Add a link to the three_nids admin page to the Content menu.
+    $menu->get("appearance_menu")
+      ->append(Menu::factory("link")
+               ->id("three_nids")
+               ->label(t("3nids settings"))
+               ->url(url::site("admin/three_nids")));
+  }
+}