public function getDocLayoutSetting($type)
  {
    $settings = $this->active_content->settings();

    if ($type === 'layout:single' && isset($settings['layoutSingle'])) {
      return $settings['layoutSingle'];
    }

    if ($type === 'layout:header' && isset($settings['layoutHeader'])) {
      return $settings['layoutHeader'];
    }

    if ($type === 'layout:footer' && isset($settings['layoutFooter'])) {
      return $settings['layoutFooter'];
    }

    return null;
  }