Issue #3224263 by jonathan1055: Inject entityTypeManager to avoid View::load calls

namespace Drupal\scheduler\Plugin\Derivative;

use Drupal\Component\Plugin\Derivative\DeriverBase;

use Drupal\Core\Entity\EntityTypeManagerInterface;

use Drupal\Core\Plugin\Discovery\ContainerDeriverInterface;

use Drupal\Core\StringTranslation\StringTranslationTrait;

use Drupal\views\Entity\View;

use Symfony\Component\DependencyInjection\ContainerInterface;

/**

 * Defines dynamic local tasks.

 * will not exist and this produces an exception "Route X does not exist." The

 * routes are defined here instead to enable checking that the views are loaded.

 */

class DynamicLocalTasks extends DeriverBase {

class DynamicLocalTasks extends DeriverBase implements ContainerDeriverInterface {

  use StringTranslationTrait;

  /**

   * The entity type manager.

   *

   * @var \Drupal\Core\Entity\EntityTypeManagerInterface

   */

  protected $entityTypeManager;

  /**

   * Creates a DynamicLocalTasks object.

   *

   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager

   *   The entity type manager.

   */

  public function __construct(EntityTypeManagerInterface $entity_type_manager) {

    $this->entityTypeManager = $entity_type_manager;

  }

  /**

   * {@inheritdoc}

   */

  public static function create(ContainerInterface $container, $base_plugin_id) {

    return new static(

      $container->get('entity_type.manager')

    );

  }

  /**

   * {@inheritdoc}

   */

  public function getDerivativeDefinitions($base_plugin_definition) {

    $view_storage = $this->entityTypeManager->getStorage('view');

    // Define a local task for scheduled content (nodes) view, only when the

    // view can be loaded, is enabled and that the overview display exists.

    $view = View::load('scheduler_scheduled_content');

    /** @var \Drupal\views\ViewEntityInterface $view */

    $view = $view_storage->load('scheduler_scheduled_content');

    if ($view && $view->status() && $view->getDisplay('overview')) {

      // The content overview has weight 0 and moderated content has weight 1

      // so use weight 5 for the scheduled content tab.

      ] + $base_plugin_definition;

    }

    $view = View::load('scheduler_scheduled_media');

    $view = $view_storage->load('scheduler_scheduled_media');

    if ($view && $view->status() && $view->getDisplay('overview')) {

      // Define local task for scheduled media view.

      $this->derivatives['scheduler.scheduled_media'] = [

      ] + $base_plugin_definition;

    }

    $view = View::load('scheduler_scheduled_commerce_product');

    $view = $view_storage->load('scheduler_scheduled_commerce_product');

    if ($view && $view->status() && $view->getDisplay('overview')) {

      // The page created by route entity.commerce_product.collection does not

      // have any tabs or sub-links, because the Commerce Product module does

      ] + $base_plugin_definition;

    }

    $view = View::load('scheduler_scheduled_taxonomy_term');

    $view = $view_storage->load('scheduler_scheduled_taxonomy_term');

    if ($view && $view->status() && $view->getDisplay('overview')) {

      // In the same manner as for Commerce Products the page created by route

      // entity.taxonomy_vocabulary.collection does not have tabs or sub-links,