TWindow OVER TWindow - Close in Order!

<?php

/**
 * @Author: SisSoftwares WEB (Sistemas PHP)
 * @Date:   2019-05-01 23:48:50
 * @Last Modified by:   Usuario
 * @Last Modified time: 2019-05-02 00:05:45
 */

/**
 * SingleWindowView
 *
 * @version    1.0
 * @package    samples
 * @subpackage tutor
 * @author     Pablo Dall'Oglio
 * @copyright  Copyright (c) 2006 Adianti Solutions Ltd. (http://www.adianti.com.br)
 * @license    http://www.adianti.com.br/framework-license
 */
class TWindowMulti extends TWindow
{
    /**
     * Constructor method
     */
    public function __construct()
    {
        parent::__construct();
        parent::setTitle('Window');

        // with: 500, height: automatic
        parent::setSize(0.6, null); // use 0.6, 0.4 (for relative sizes 60%, 40%)

        // create the HTML Renderer
        $this->html = new THtmlRenderer('app/resources/page.html');

        $replaces = [];
        $replaces['title']  = 'Panel title';
        $replaces['footer'] = 'Panel footer';
        $replaces['name']   = 'Someone famous';

        // replace the main section variables
        $this->html->enableSection('main', $replaces);

        $window = TWindow::create('TWindow - SEGUNDA!', 0.8, null);

        // https://www.adianti.com.br/forum/pt/view_3362?twindow-que-invoca-outro-twindow-versao-2
        $window->setStackOrder(4000);

        $html_2 = new THtmlRenderer('app/resources/page.html');

        $replaces = [];
        $replaces['title']  = 'Panel title - SEGUNDO!';
        $replaces['footer'] = 'Panel footer - SEGUNDO!';
        $replaces['name']   = 'Someone famous - SEGUNDO!';

        // replace the main section variables
        $html_2->enableSection('main', $replaces);

        $window->add($html_2);

        parent::add($this->html);
        parent::add($window);
        // parent::add($this->html);
    }
}