DomainLangNegotiationSessionForm.php in Domain Lang 8

Namespace

Drupal\domain_lang\Form

File

src/Form/DomainLangNegotiationSessionForm.php

<?php

namespace Drupal\domain_lang\Form;

use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\domain_lang\DomainLangHandlerInterface;
use Drupal\language\Form\NegotiationSessionForm;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Configure the session language negotiation method for this site.
 */
class DomainLangNegotiationSessionForm extends NegotiationSessionForm {

  /**
   * The domain lang handler.
   *
   * @var \Drupal\domain_lang\DomainLangHandlerInterface
   */
  protected $domainLangHandler;

  /**
   * Language negotiation config name for current active domain.
   *
   * @var string
   */
  protected $languageNegotiationConfig;

  /**
   * Constructs a \Drupal\system\ConfigFormBase object.
   *
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The factory for configuration objects.
   * @param \Drupal\domain_lang\DomainLangHandlerInterface $domain_lang_handler
   *   The domain lang handler.
   */
  public function __construct(ConfigFactoryInterface $config_factory, DomainLangHandlerInterface $domain_lang_handler) {
    parent::__construct($config_factory);
    $this->domainLangHandler = $domain_lang_handler;
    $this->languageNegotiationConfig = $this->domainLangHandler
      ->getDomainConfigName('language.negotiation');
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('config.factory'), $container
      ->get('domain_lang.handler'));
  }

  /**
   * {@inheritdoc}
   */
  protected function getEditableConfigNames() {
    return [
      'language.negotiation',
      $this->languageNegotiationConfig,
    ];
  }

  /**
   * {@inheritdoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state) {
    $config = $this
      ->config($this->languageNegotiationConfig);
    $form = parent::buildForm($form, $form_state);

    // Fill with initial values on first page visit.
    if (!$config
      ->get('session.parameter')) {
      $config
        ->set('session.parameter', $this
        ->config('language.negotiation')
        ->get('session.parameter'));
    }
    if (isset($form['language_negotiation_session_param'])) {
      $form['language_negotiation_session_param']['#default_value'] = $config
        ->get('session.parameter');
    }
    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this
      ->config($this->languageNegotiationConfig)
      ->set('session.parameter', $form_state
      ->getValue('language_negotiation_session_param'))
      ->save();
    $form_state
      ->disableRedirect();
    $this
      ->messenger()
      ->addStatus($this
      ->t('The configuration options have been saved.'));
  }

}

Classes

Name	Description
DomainLangNegotiationSessionForm	Configure the session language negotiation method for this site.