class UserLoginBlock in Drupal 10
Same name and namespace in other branches
- 8 core/modules/user/src/Plugin/Block/UserLoginBlock.php \Drupal\user\Plugin\Block\UserLoginBlock
- 9 core/modules/user/src/Plugin/Block/UserLoginBlock.php \Drupal\user\Plugin\Block\UserLoginBlock
Provides a 'User login' block.
Plugin annotation
@Block(
id = "user_login_block",
admin_label = @Translation("User login"),
category = @Translation("Forms")
)
Hierarchy
- class \Drupal\Component\Plugin\PluginBase implements DerivativeInspectionInterface, PluginInspectionInterface
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
- class \Drupal\Core\Block\BlockBase implements BlockPluginInterface, ContextAwarePluginInterface, PluginWithFormsInterface, PreviewAwarePluginInterface, PreviewFallbackInterface uses BlockPluginTrait, ContextAwarePluginAssignmentTrait, ContextAwarePluginTrait
- class \Drupal\user\Plugin\Block\UserLoginBlock implements ContainerFactoryPluginInterface, TrustedCallbackInterface uses RedirectDestinationTrait
- class \Drupal\Core\Block\BlockBase implements BlockPluginInterface, ContextAwarePluginInterface, PluginWithFormsInterface, PreviewAwarePluginInterface, PreviewFallbackInterface uses BlockPluginTrait, ContextAwarePluginAssignmentTrait, ContextAwarePluginTrait
- class \Drupal\Core\Plugin\PluginBase uses DependencySerializationTrait, MessengerTrait, StringTranslationTrait
Expanded class hierarchy of UserLoginBlock
File
- core/
modules/ user/ src/ Plugin/ Block/ UserLoginBlock.php, line 26
Namespace
Drupal\user\Plugin\BlockView source
class UserLoginBlock extends BlockBase implements ContainerFactoryPluginInterface, TrustedCallbackInterface {
use RedirectDestinationTrait;
/**
* The route match.
*
* @var \Drupal\Core\Routing\RouteMatchInterface
*/
protected $routeMatch;
/**
* Constructs a new UserLoginBlock instance.
*
* @param array $configuration
* The plugin configuration, i.e. an array with configuration values keyed
* by configuration option name. The special key 'context' may be used to
* initialize the defined contexts by setting it to an array of context
* values keyed by context names.
* @param string $plugin_id
* The plugin_id for the plugin instance.
* @param mixed $plugin_definition
* The plugin implementation definition.
* @param \Drupal\Core\Routing\RouteMatchInterface $route_match
* The route match.
*/
public function __construct(array $configuration, $plugin_id, $plugin_definition, RouteMatchInterface $route_match) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
$this->routeMatch = $route_match;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($configuration, $plugin_id, $plugin_definition, $container
->get('current_route_match'));
}
/**
* {@inheritdoc}
*/
protected function blockAccess(AccountInterface $account) {
$route_name = $this->routeMatch
->getRouteName();
if ($account
->isAnonymous() && !in_array($route_name, [
'user.login',
'user.logout',
])) {
return AccessResult::allowed()
->addCacheContexts([
'route.name',
'user.roles:anonymous',
]);
}
return AccessResult::forbidden();
}
/**
* {@inheritdoc}
*/
public function build() {
$form = \Drupal::formBuilder()
->getForm('Drupal\\user\\Form\\UserLoginForm');
unset($form['name']['#attributes']['autofocus']);
// When unsetting field descriptions, also unset aria-describedby attributes
// to avoid introducing an accessibility bug.
// @todo Do this automatically in https://www.drupal.org/node/2547063.
unset($form['name']['#description']);
unset($form['name']['#attributes']['aria-describedby']);
unset($form['pass']['#description']);
unset($form['pass']['#attributes']['aria-describedby']);
$form['name']['#size'] = 15;
$form['pass']['#size'] = 15;
// Instead of setting an actual action URL, we set the placeholder, which
// will be replaced at the very last moment. This ensures forms with
// dynamically generated action URLs don't have poor cacheability.
// Use the proper API to generate the placeholder, when we have one. See
// https://www.drupal.org/node/2562341. The placeholder uses a fixed string
// that is
// Crypt::hashBase64('\Drupal\user\Plugin\Block\UserLoginBlock::build');
// This is based on the implementation in
// \Drupal\Core\Form\FormBuilder::prepareForm(), but the user login block
// requires different behavior for the destination query argument.
$placeholder = 'form_action_p_4r8ITd22yaUvXM6SzwrSe9rnQWe48hz9k1Sxto3pBvE';
$form['#attached']['placeholders'][$placeholder] = [
'#lazy_builder' => [
'\\Drupal\\user\\Plugin\\Block\\UserLoginBlock::renderPlaceholderFormAction',
[],
],
];
$form['#action'] = $placeholder;
// Build action links.
$items = [];
if (\Drupal::config('user.settings')
->get('register') != UserInterface::REGISTER_ADMINISTRATORS_ONLY) {
$items['create_account'] = [
'#type' => 'link',
'#title' => $this
->t('Create new account'),
'#url' => Url::fromRoute('user.register', [], [
'attributes' => [
'title' => $this
->t('Create a new user account.'),
'class' => [
'create-account-link',
],
],
]),
];
}
$items['request_password'] = [
'#type' => 'link',
'#title' => $this
->t('Reset your password'),
'#url' => Url::fromRoute('user.pass', [], [
'attributes' => [
'title' => $this
->t('Send password reset instructions via email.'),
'class' => [
'request-password-link',
],
],
]),
];
return [
'user_login_form' => $form,
'user_links' => [
'#theme' => 'item_list',
'#items' => $items,
],
];
}
/**
* #lazy_builder callback; renders a form action URL including destination.
*
* @return array
* A renderable array representing the form action.
*
* @see \Drupal\Core\Form\FormBuilder::renderPlaceholderFormAction()
*/
public static function renderPlaceholderFormAction() {
return [
'#type' => 'markup',
'#markup' => UrlHelper::filterBadProtocol(Url::fromRoute('<current>', [], [
'query' => \Drupal::destination()
->getAsArray(),
'external' => FALSE,
])
->toString()),
'#cache' => [
'contexts' => [
'url.path',
'url.query_args',
],
],
];
}
/**
* {@inheritdoc}
*/
public static function trustedCallbacks() {
return [
'renderPlaceholderFormAction',
];
}
}