externalauth_gitlab-8.x-1.x-dev/src/Form/SettingsForm.php

<?php

namespace Drupal\externalauth_gitlab\Form;

use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Form\ConfigFormBaseTrait;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * {@inheritdoc}
 */
class SettingsForm extends FormBase {

  use ConfigFormBaseTrait;

  /**
   * Config settings.
   *
   * @var string
   */
  const SETTINGS = 'externalauth_gitlab.settings';

  /**
   * The config factory object.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;

  /**
   * Constructs a SettingsForm object.
   *
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   A configuration factory instance.
   */
  public function __construct(ConfigFactoryInterface $config_factory) {
    $this->configFactory = $config_factory;
  }

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

  /**
   * {@inheritdoc}
   */
  public function getFormId() {
    return 'settings_form';
  }

  /**
   * {@inheritdoc}
   */
  protected function getEditableConfigNames() {
    return [
      static::SETTINGS,
    ];
  }

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

    $form['client_id'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Client ID'),
      '#description' => $this->t('The client id'),
      '#default_value' => $config->get('client_id'),
    ];
    $form['client_secret'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Client secret'),
      '#description' => $this->t('The client secret'),
      '#default_value' => $config->get('client_secret'),
    ];
    $form['domain'] = [
      '#type' => 'textfield',
      '#title' => $this->t('Domain'),
      '#default_value' => $config->get('domain'),
    ];
    $form['submit'] = [
      '#type' => 'submit',
      '#value' => $this->t('Submit'),
    ];

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    // Display result.
    $config = $this->configFactory->getEditable('externalauth_gitlab.settings');
    $keys = ['client_id', 'client_secret', 'domain'];
    foreach ($keys as $key) {
      $config->set($key, $form_state->getValue($key));
    }
    $config->save();

  }

}