Change from an event driven model to a call driven model similiar to the task

api.

Signed-off-by:  <unostar@danalan.info>

modules/comment/helpers/comment_rss.php

@@ -0,0 +1,30 @@
+<?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 comment_rss_Core {
+  static function available_feeds($item) {
+    return array(array("description" => t("All new comments"),
+                       "sidebar" => true,
+                       "uri" => "comments"),
+                 array("description" => sprintf(t("Comments on %s"), $item->title),
+                       "sidebar" => true,
+                       "uri" => "comments/{$item->id}"));
+  }
+}