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<?php
/**
 * @package     Joomla.Platform
 * @subpackage  Plugin
 *
 * @copyright   Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
 * @license     GNU General Public License version 2 or later; see LICENSE
 */

defined('JPATH_PLATFORM') or die;

jimport('joomla.event.event');

/**
 * JPlugin Class
 *
 * @package     Joomla.Platform
 * @subpackage  Plugin
 * @since       11.1
 */
abstract class JPlugin extends JEvent
{
	/**
	 * A JRegistry object holding the parameters for the plugin
	 *
	 * @var    A JRegistry object
	 * @since  11.1
	 */
	public $params = null;

/**
	 * The name of the plugin
	 *
	 * @var    string
	 */
	protected $_name = null;

/**
	 * The plugin type
	 *
	 * @var    string
	 */
	protected $_type = null;

/**
	 * Constructor
	 *
	 * @param   object  $subject  The object to observe
	 * @param   array   $config   An optional associative array of configuration settings.
	 *                            Recognized key values include 'name', 'group', 'params', 'language'
	 *                            (this list is not meant to be comprehensive).
	 *
	 * @return  JPlugin
	 *
	 * @since   11.1
	 */
	public function __construct(&$subject, $config = array())
	{
		// Get the parameters.
		if (isset($config['params']))
		{
			if ($config['params'] instanceof JRegistry) {
				$this->params = $config['params'];
			} else {
				$this->params = new JRegistry;
				$this->params->loadString($config['params']);
			}
		}

// Get the plugin name.
		if (isset($config['name'])) {
			$this->_name = $config['name'];
		}

// Get the plugin type.
		if (isset($config['type'])) {
			$this->_type = $config['type'];
		}

parent::__construct($subject);
	}

/**
	 * Loads the plugin language file
	 *
	 * @param   string  $extension  The extension for which a language file should be loaded
	 * @param   string  $basePath   The basepath to use
	 *
	 * @return  boolean  True, if the file has successfully loaded.
	 *
	 * @since   11.1
	 */
	public function loadLanguage($extension = '', $basePath = JPATH_ADMINISTRATOR)
	{
		if (empty($extension)) {
			$extension = 'plg_'.$this->_type.'_'.$this->_name;
		}

$lang = JFactory::getLanguage();
		return
			$lang->load(strtolower($extension), $basePath, null, false, false)
		||	$lang->load(strtolower($extension), JPATH_PLUGINS . '/' . $this->_type . '/' . $this->_name, null, false, false)
		||	$lang->load(strtolower($extension), $basePath, $lang->getDefault(), false, false)
		||	$lang->load(strtolower($extension), JPATH_PLUGINS . '/' . $this->_type . '/' . $this->_name, $lang->getDefault(), false, false);
	}
}