Elementor\Admin::body_status_classes PHP Method

    public function body_status_classes($classes)
    {
        global $pagenow;
        if (in_array($pagenow, ['post.php', 'post-new.php']) && Utils::is_post_type_support()) {
            $post = get_post();
            $current_mode = Plugin::instance()->db->get_edit_mode($post->ID);
            $mode_class = 'builder' === $current_mode ? 'elementor-editor-active' : 'elementor-editor-inactive';
            $classes .= ' ' . $mode_class;
        }
        return $classes;
    }