.-.-.-.-.-

<?php
/**
 * @package         Regular Labs Library
 * @version         23.1.9739
 * 
 * @author          Peter van Westen <info@regularlabs.com>
 * @link            http://regularlabs.com
 * @copyright       Copyright © 2023 Regular Labs All Rights Reserved
 * @license         http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
 */

defined('_JEXEC') or die;

use Joomla\CMS\HTML\HTMLHelper as JHtml;
use Joomla\Registry\Registry;
use RegularLabs\Library\Field;

if ( ! is_file(JPATH_LIBRARIES . '/regularlabs/autoload.php'))
{
    return;
}

require_once JPATH_LIBRARIES . '/regularlabs/autoload.php';

class JFormFieldRL_Languages extends Field
{
    public $type = 'Languages';

public function getAjaxRaw(Registry $attributes)
    {
        $name     = $attributes->get('name', $this->type);
        $id       = $attributes->get('id', strtolower($name));
        $value    = $attributes->get('value', []);
        $size     = $attributes->get('size');
        $multiple = $attributes->get('multiple');

$options = $this->getLanguages($value);

return $this->selectListSimple($options, $name, $value, $id, $size, $multiple);
    }

public function getLanguages($value)
    {
        $langs = JHtml::_('contentlanguage.existing');

if ( ! is_array($value))
        {
            $value = [$value];
        }

$options = [];

foreach ($langs as $lang)
        {
            if (empty($lang->value))
            {
                continue;
            }

$options[] = (object) [
                'value'    => $lang->value,
                'text'     => $lang->text . ' [' . $lang->value . ']',
                'selected' => in_array($lang->value, $value),
            ];
        }

return $options;
    }

protected function getInput()
    {
        $size     = (int) $this->get('size');
        $multiple = $this->get('multiple');

return $this->selectListSimpleAjax(
            $this->type, $this->name, $this->value, $this->id,
            compact('size', 'multiple')
        );
    }
}

/var/www/html/Joomla/b2748/../libraries/gantry5/../regularlabs/fields/languages.php