cloud-8.x-2.0-beta1/modules/cloud_service_providers/aws_cloud/src/Plugin/Field/FieldFormatter/UnusedVolumeDateFormatter.php

<?php

namespace Drupal\aws_cloud\Plugin\Field\FieldFormatter;

use Drupal\aws_cloud\Entity\Ec2\Volume;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\Plugin\Field\FieldFormatter\TimestampFormatter;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Plugin implementation of the 'unused_volume_date_formatter' formatter.
 *
 * This formatter adds a css class called unused-volume to the created date.
 *
 * @FieldFormatter(
 *   id = "unused_volume_date_formatter",
 *   label = @Translation("Unused volume date formatter"),
 *   field_types = {
 *     "timestamp",
 *     "created",
 *     "changed",
 *   }
 * )
 */
class UnusedVolumeDateFormatter extends TimestampFormatter implements ContainerFactoryPluginInterface {

  /**
   * The config factory.
   *
   * Subclasses should use the self::config() method, which may be overridden to
   * address specific needs when loading config, rather than this property
   * directly. See \Drupal\Core\Form\ConfigFormBase::config() for an example of
   * this.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;

  /**
   * Constructs a new TimestampFormatter.
   *
   * @param string $plugin_id
   *   The plugin_id for the formatter.
   * @param mixed $plugin_definition
   *   The plugin implementation definition.
   * @param \Drupal\Core\Field\FieldDefinitionInterface $field_definition
   *   The definition of the field to which the formatter is associated.
   * @param array $settings
   *   The formatter settings.
   * @param string $label
   *   The formatter label display setting.
   * @param string $view_mode
   *   The view mode.
   * @param array $third_party_settings
   *   Third party settings.
   * @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
   *   The date formatter service.
   * @param \Drupal\Core\Entity\EntityStorageInterface $date_format_storage
   *   The date format storage.
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   A configuration factory.
   */
  public function __construct($plugin_id, $plugin_definition, FieldDefinitionInterface $field_definition, array $settings, $label, $view_mode, array $third_party_settings, DateFormatterInterface $date_formatter, EntityStorageInterface $date_format_storage, ConfigFactoryInterface $config_factory) {
    parent::__construct($plugin_id, $plugin_definition, $field_definition, $settings, $label, $view_mode, $third_party_settings, $date_formatter, $date_format_storage);

    $this->configFactory = $config_factory;
  }

  /**
   * {@inheritdoc}
   */
  public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
    return new static(
      $plugin_id,
      $plugin_definition,
      $configuration['field_definition'],
      $configuration['settings'],
      $configuration['label'],
      $configuration['view_mode'],
      $configuration['third_party_settings'],
      $container->get('date.formatter'),
      $container->get('entity.manager')->getStorage('date_format'),
      $container->get('config.factory')
    );
  }

  /**
   * {@inheritdoc}
   */
  public function viewElements(FieldItemListInterface $items, $langcode) {
    $elements = parent::viewElements($items, $langcode);
    if ($this->configFactory->get('aws_cloud.settings')
      ->get('aws_cloud_volume_notification')
    ) {
      $entity = $items->getEntity();
      foreach ($items as $delta => $item) {
        if ($entity instanceof Volume) {
          /* @var \Drupal\aws_cloud\Entity\Ec2\Volume $entity */
          if ($entity->isVolumeUnused()) {
            $elements[$delta]['#markup'] = '<span class="unused-volume">' . $elements[$delta]['#markup'] . '</span>';
          }
        }
      }
      $elements['#attached']['library'][] = 'aws_cloud/aws_cloud_view_builder';
    }
    return $elements;
  }

}