user_toolbar

user_toolbar()

function user_toolbar() {
  $user = \Drupal::currentUser();

  // Add logout & user account links or login link.
  $links_cache_contexts = [];
  if ($user->isAuthenticated()) {
    $links = array(
      'account' => array(
        'title' => t('View profile'),
        'url' => Url::fromRoute('user.page'),
        'attributes' => array(
          'title' => t('User account'),
        ),
      ),
      'account_edit' => array(
        'title' => t('Edit profile'),
        'url' => Url::fromRoute('entity.user.edit_form', ['user' => $user->id()]),
        'attributes' => array(
          'title' => t('Edit user account'),
        ),
      ),
      'logout' => array(
        'title' => t('Log out'),
        'url' => Url::fromRoute('user.logout'),
      ),
    );
    // The "Edit user account" link is per-user.
    $links_cache_contexts[] = 'user';
  }
  else {
    $links = array(
      'login' => array(
        'title' => t('Log in'),
        'url' => Url::fromRoute('user.page'),
      ),
    );
  }

  $items['user'] = array(
    '#type' => 'toolbar_item',
    'tab' => array(
      '#type' => 'link',
      '#title' => $user->getDisplayName(),
      '#url' => Url::fromRoute('user.page'),
      '#attributes' => array(
        'title' => t('My account'),
        'class' => array('toolbar-icon', 'toolbar-icon-user'),
      ),
      '#cache' => [
        'contexts' => [
          // Cacheable per user, because the current user's name is shown.
          'user',
        ],
      ],
    ),
    'tray' => array(
      '#heading' => t('User account actions'),
      'user_links' => array(
        '#cache' => [
          // Cacheable per "authenticated or not", because the links to
          // display depend on that.
          'contexts' => Cache::mergeContexts(array('user.roles:authenticated'), $links_cache_contexts),
        ],
        '#theme' => 'links__toolbar_user',
        '#links' => $links,
        '#attributes' => array(
          'class' => array('toolbar-menu'),
        ),
      ),
    ),
    '#weight' => 100,
    '#attached' => array(
      'library' => array(
        'user/drupal.user.icons',
      ),
    ),
  );

  return $items;
}