Sindbad~EG File Manager

<?php
/**
 * @package         Regular Labs Library
 * @version         23.2.18739
 * 
 * @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('JPATH_PLATFORM') or die;

use Joomla\CMS\HTML\HTMLHelper as JHtml;

JFormHelper::loadFieldClass('list');

class JFormFieldRL_List extends JFormFieldList
{
    protected $type = 'List';

    protected function getInput()
    {
        $html = [];
        $attr = '';

        // Initialize some field attributes.
        $attr .= ! empty($this->class) ? ' class="' . $this->class . '"' : '';
        $attr .= $this->size ? ' style="width:' . $this->size . 'px"' : '';
        $attr .= $this->multiple ? ' multiple' : '';
        $attr .= $this->required ? ' required aria-required="true"' : '';
        $attr .= $this->autofocus ? ' autofocus' : '';

        // To avoid user's confusion, readonly="true" should imply disabled="true".
        if ((string) $this->readonly == '1' || (string) $this->readonly == 'true' || (string) $this->disabled == '1' || (string) $this->disabled == 'true')
        {
            $attr .= ' disabled="disabled"';
        }

        // Initialize JavaScript field attributes.
        $attr .= $this->onchange ? ' onchange="' . $this->onchange . '"' : '';

        // Get the field options.
        $options = (array) $this->getOptions();

        if ((string) $this->readonly == '1' || (string) $this->readonly == 'true')
        {
            // Create a read-only list (no name) with a hidden input to store the value.
            $html[] = JHtml::_('select.genericlist', $options, '', trim($attr), 'value', 'text', $this->value, $this->id);
            $html[] = '<input type="hidden" name="' . $this->name . '" value="' . htmlspecialchars($this->value, ENT_COMPAT, 'UTF-8') . '">';
        }
        else
        {
            // Create a regular list.
            $html[] = JHtml::_('select.genericlist', $options, $this->name, trim($attr), 'value', 'text', $this->value, $this->id);
        }

        return implode('', $html);
    }
}