Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\user\Plugin\Condition;
Chris@0: 
Chris@0: use Drupal\Core\Condition\ConditionPluginBase;
Chris@0: use Drupal\Core\Form\FormStateInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Provides a 'User Role' condition.
Chris@0:  *
Chris@0:  * @Condition(
Chris@0:  *   id = "user_role",
Chris@0:  *   label = @Translation("User Role"),
Chris@18:  *   context_definitions = {
Chris@0:  *     "user" = @ContextDefinition("entity:user", label = @Translation("User"))
Chris@0:  *   }
Chris@0:  * )
Chris@0:  */
Chris@0: class UserRole extends ConditionPluginBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
Chris@0:     $form['roles'] = [
Chris@0:       '#type' => 'checkboxes',
Chris@0:       '#title' => $this->t('When the user has the following roles'),
Chris@0:       '#default_value' => $this->configuration['roles'],
Chris@0:       '#options' => array_map('\Drupal\Component\Utility\Html::escape', user_role_names()),
Chris@0:       '#description' => $this->t('If you select no roles, the condition will evaluate to TRUE for all users.'),
Chris@0:     ];
Chris@0:     return parent::buildConfigurationForm($form, $form_state);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function defaultConfiguration() {
Chris@0:     return [
Chris@0:       'roles' => [],
Chris@0:     ] + parent::defaultConfiguration();
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function submitConfigurationForm(array &$form, FormStateInterface $form_state) {
Chris@0:     $this->configuration['roles'] = array_filter($form_state->getValue('roles'));
Chris@0:     parent::submitConfigurationForm($form, $form_state);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function summary() {
Chris@0:     // Use the role labels. They will be sanitized below.
Chris@0:     $roles = array_intersect_key(user_role_names(), $this->configuration['roles']);
Chris@0:     if (count($roles) > 1) {
Chris@0:       $roles = implode(', ', $roles);
Chris@0:     }
Chris@0:     else {
Chris@0:       $roles = reset($roles);
Chris@0:     }
Chris@0:     if (!empty($this->configuration['negate'])) {
Chris@0:       return $this->t('The user is not a member of @roles', ['@roles' => $roles]);
Chris@0:     }
Chris@0:     else {
Chris@0:       return $this->t('The user is a member of @roles', ['@roles' => $roles]);
Chris@0:     }
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function evaluate() {
Chris@0:     if (empty($this->configuration['roles']) && !$this->isNegated()) {
Chris@0:       return TRUE;
Chris@0:     }
Chris@0:     $user = $this->getContextValue('user');
Chris@0:     return (bool) array_intersect($this->configuration['roles'], $user->getRoles());
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function getCacheContexts() {
Chris@0:     // Optimize cache context, if a user cache context is provided, only use
Chris@0:     // user.roles, since that's the only part this condition cares about.
Chris@0:     $contexts = [];
Chris@0:     foreach (parent::getCacheContexts() as $context) {
Chris@0:       $contexts[] = $context == 'user' ? 'user.roles' : $context;
Chris@0:     }
Chris@0:     return $contexts;
Chris@0:   }
Chris@0: 
Chris@0: }