<?php
/**
 * LimitResults action for Search module
 *
 * PHP version 5
 *
 * Copyright (C) Villanova University 2011
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2,
 * as published by the Free Software Foundation.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * @category VuFind
 * @package  Controller_Search
 * @author   Andrew S. Nagy <vufind-tech@lists.sourceforge.net>
 * @author   Demian Katz <demian.katz@villanova.edu>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     http://vufind.org/wiki/building_a_module Wiki
 */
require_once 'Action.php';

/**
 * This action only exists to allow limiting behavior to work when Javascript is
 * disabled.  Normally, Javascript reads the new limit URL and redirects accordingly.
 * If Javascript is unavailable, the user has to submit the limit URL to this page,
 * which will do a server-side redirect to achieve the same effect.
 *
 * @category VuFind
 * @package  Controller_Search
 * @author   Andrew S. Nagy <vufind-tech@lists.sourceforge.net>
 * @author   Demian Katz <demian.katz@villanova.edu>
 * @license  http://opensource.org/licenses/gpl-2.0.php GNU General Public License
 * @link     http://vufind.org/wiki/building_a_module Wiki
 */
class LimitResults extends Action
{
    /**
     * Process incoming parameters and perform a redirect if appropriate.
     *
     * @return void
     * @access public
     */
    public function launch()
    {
        if (isset($_REQUEST['limit'])) {
            header('Location: ' . $_REQUEST['limit']);
            die();
        }
    }
}

?>
