Elep

<?php
/**
 * @package         NoNumber Framework
 * @version         16.1.24082
 * 
 * @author          Peter van Westen <peter@nonumber.nl>
 * @link            http://www.nonumber.nl
 * @copyright       Copyright © 2016 NoNumber All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

defined('_JEXEC') or die;

require_once dirname(__DIR__) . '/helpers/field.php';

class JFormFieldNN_MultiSelect extends NNFormField
{
	public $type = 'MultiSelect';

protected function getInput()
	{
		$this->params = $this->element->attributes();

if (!is_array($this->value))
		{
			$this->value = explode(',', $this->value);
		}

foreach ($this->element->children() as $item)
		{
			$item_value    = (string) $item['value'];
			$item_name     = JText::_(trim((string) $item));
			$item_disabled = (int) $item['disabled'];
			$options[]     = JHtml::_('select.option', $item_value, $item_name, 'value', 'text', $item_disabled);
		}

$size = (int) $this->get('size');

require_once dirname(__DIR__) . '/helpers/html.php';

return NNHtml::selectlist($options, $this->name, $this->value, $this->id, $size, 1);
	}
}