CurrentUser.php

<?php

namespace Drupal\user\Plugin\views\argument_default;

use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableDependencyInterface;
use Drupal\Core\Session\AccountInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;
use Drupal\views\Attribute\ViewsArgumentDefault;
use Drupal\views\Plugin\views\argument_default\ArgumentDefaultPluginBase;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Default argument plugin to extract the current user.
 *
 * This plugin actually has no options so it does not need to do a great deal.
 */
class CurrentUser extends ArgumentDefaultPluginBase implements CacheableDependencyInterface {
    
    /**
     * CurrentUser constructor.
     *
     * @param array $configuration
     *   A configuration array containing information about the plugin instance.
     * @param string $plugin_id
     *   The plugin_id for the plugin instance.
     * @param mixed $plugin_definition
     *   The plugin implementation definition.
     * @param \Drupal\Core\Session\AccountInterface|null $currentUser
     *   The current user.
     */
    public function __construct(array $configuration, $plugin_id, $plugin_definition, ?AccountInterface $currentUser = NULL) {
        parent::__construct($configuration, $plugin_id, $plugin_definition);
        if ($this->currentUser === NULL) {
            @trigger_error('Calling ' . __CLASS__ . '::__construct() without the $currentUser argument is deprecated in drupal:11.2.0 and is required in drupal:12.0.0. See https://www.drupal.org/node/3347878', E_USER_DEPRECATED);
            $this->currentUser = \Drupal::currentUser();
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
        return new static($configuration, $plugin_id, $plugin_definition, $container->get('current_user'));
    }
    
    /**
     * {@inheritdoc}
     */
    public function getArgument() {
        return $this->currentUser
            ->id();
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheMaxAge() {
        return Cache::PERMANENT;
    }
    
    /**
     * {@inheritdoc}
     */
    public function getCacheContexts() {
        return [
            'user',
        ];
    }

}