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/home/develito/www/libraries/syw/fields/extensionversion.php

<?php
/**
 * @copyright	Copyright (C) 2011 Simplify Your Web, Inc. All rights reserved.
 * @license		GNU General Public License version 3 or later; see LICENSE.txt
 */

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

jimport('joomla.form.formfield');

class JFormFieldExtensionVersion extends JFormField
{
	public $type = 'ExtensionVersion';

protected $version;
	protected $extension;

protected function getLabel()
	{
		$lang = JFactory::getLanguage();
		$lang->load('lib_syw.sys', JPATH_SITE);

$html = '';

$html .= '<div style="clear: both;">'.JText::_('LIB_SYW_EXTENSIONVERSION_VERSION_LABEL').'</div>';

return $html;
	}

protected function getInput()
	{
		$html = '<div style="padding-top: 5px; overflow: inherit">';

if ($this->version) {
			$html .= '<span class="label">'.$this->version.'</span>';
		} else if ($this->extension) {
			$extension_parts = explode('_', $this->extension);
			$path = '';
			switch ($extension_parts[0]) {
				case 'plg': $path = JPATH_SITE . '/plugins/' . $extension_parts[1] . '/' . $extension_parts[2] . '/' . $extension_parts[2] . '.xml'; break;
				case 'com': $path = JPATH_ADMINISTRATOR . '/components/' . $this->extension . '/' . $extension_parts[1]. '.xml'; break;
				//case 'lib': $path = JPATH_SITE . '/libraries/' . $extension_parts[1] . '/' . $extension_parts[1]. '.xml'; break;
				case 'tpl': $path = JPATH_SITE . '/templates/' . $extension_parts[1] . '/templateDetails.xml'; break;
				default: $path = JPATH_SITE . '/modules/' . $this->extension . '/' . $this->extension . '.xml';
			}
			
			if ($path) {
				$html .= '<span class="label">' . strval(simplexml_load_file($path)->version) . '</span>';
			}
		}

$html .= '</div>';

return $html;
	}

public function setup(SimpleXMLElement $element, $value, $group = null)
	{
		$return = parent::setup($element, $value, $group);

if ($return) {
			$this->version = isset($this->element['version']) ? (string)$this->element['version'] : '';
			$this->extension = isset($this->element['extension']) ? (string)$this->element['extension'] : '';
		}

return $return;
	}

}
?>