uadetector.php

<?php
/**
 * ---------------------------------------------------------------------------------------------------------
 * User Agent detector plugin
 *
 * Version 1.0.7
 *
 * Copyright (C) 2013 Rene Kreijveld. All rights reserved.
 *
 * User Agent detector is free software and is distributed under the GNU General Public License,
 * and as distributed it may include or be derivative of works licensed under the GNU
 * General Public License or other free or open source software licenses.
 * ---------------------------------------------------------------------------------------------------------
 **/

// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

jimport( 'joomla.plugin.plugin' );

/**
 * UADetector Plugin
 */
class plgSystemUadetector extends JPlugin
{
	public function onAfterInitialise()
	{
		include_once(dirname(__FILE__).'/lib/Mobile_Detect.php');

		$detect = new Mobile_Detect();
		$layout = ($detect->isMobile() ? ($detect->isTablet() ? 'tablet' : 'mobile') : 'desktop');
		if (($detect->is('Bot')) || ($detect->is('MobileBot'))) $layout = 'bot';

		// store user agent layout in session variable.
		$session = JFactory::getSession();
		$session->set('ualayout', $layout);
	}
}