HelpController::helpPage

public HelpController::helpPage($name)

public function helpPage($name) {
  $build = array();
  if ($this->moduleHandler()->implementsHook($name, 'help')) {
    $module_name = $this->moduleHandler()->getName($name);
    $build['#title'] = $module_name;

    $info = system_get_info('module', $name);
    if ($info['package'] === 'Core (Experimental)') {
      drupal_set_message($this->t('This module is experimental. <a href=":url">Experimental modules</a> are provided for testing purposes only. Use at your own risk.', [':url' => 'https://www.drupal.org/core/experimental']), 'warning');
    }

    $temp = $this->moduleHandler()->invoke($name, 'help', array("help.page.$name", $this->routeMatch));
    if (empty($temp)) {
      $build['top'] = ['#markup' => $this->t('No help is available for module %module.', array('%module' => $module_name))];
    }
    else {
      if (!is_array($temp)) {
        $temp = ['#markup' => $temp];
      }
      $build['top'] = $temp;
    }

    // Only print list of administration pages if the module in question has
    // any such pages associated with it.
    $admin_tasks = system_get_module_admin_tasks($name, system_get_info('module', $name));
    if (!empty($admin_tasks)) {
      $links = array();
      foreach ($admin_tasks as $task) {
        $link['url'] = $task['url'];
        $link['title'] = $task['title'];
        $links[] = $link;
      }
      $build['links'] = array(
        '#theme' => 'links__help',
        '#heading' => array(
          'level' => 'h3',
          'text' => $this->t('@module administration pages', array('@module' => $module_name)),
        ),
        '#links' => $links,
      );
    }
    return $build;
  }
  else {
    throw new NotFoundHttpException();
  }
}