Issue #3317590 by a.dmitriiev, jcnventura: Don't clear all caches on settings form submit

 * Functions and hooks for the frontend_editing module.

 */

use Drupal\Core\Cache\CacheableMetadata;

use Drupal\Core\Entity\Display\EntityViewDisplayInterface;

use Drupal\Core\Entity\EntityForm;

use Drupal\Core\Entity\EntityInterface;

  }

  $config = \Drupal::configFactory()->get('frontend_editing.settings');

  $cacheable_metadata = new CacheableMetadata();

  $cacheable_metadata->addCacheableDependency($config);

  $supported_entity_types = $config->get('entity_types');

  // If a value is 0 (for disabled) a search will evaluate to TRUE, e.g.

  // "'key' == 0" evaluates to TRUE, therefore we need to perform strict search.

  }

  // Only do this, if user has access to frontend editing.

  $build['#cache']['contexts'][] = 'user.permissions';

  $cacheable_metadata->addCacheContexts(['user.permissions']);

  if (!\Drupal::currentUser()->hasPermission('access frontend editing') || ($entity instanceof RevisionableInterface && !$entity->isLatestRevision()) || !$entity->access('update')) {

    return;

  }

  $cacheable_metadata->applyTo($build);

  // Add the editing url as a data attribute.

  $url = Url::fromRoute('frontend_editing.form', [

    'type' => $entity->getEntityTypeId(),

      ->set('sidebar_width', $form_state->getValue('sidebar_width'))

      ->set('full_width', $form_state->getValue('full_width'))

      ->save();

    drupal_flush_all_caches();

    parent::submitForm($form, $form_state);

  }