Node.php

1. 8.x drupal/core/vendor/twig/twig/lib/Twig/Node.php
2. 8.x drupal/core/vendor/twig/twig/lib/Twig/Filter/Node.php
3. 8.x drupal/core/vendor/twig/twig/lib/Twig/Function/Node.php
4. 8.x drupal/core/vendor/twig/twig/lib/Twig/Test/Node.php
5. 8.x drupal/core/vendor/phpunit/php-code-coverage/PHP/CodeCoverage/Report/Node.php
6. 8.x drupal/core/modules/node/lib/Drupal/node/Plugin/views/field/Node.php
7. 8.x drupal/core/modules/node/lib/Drupal/node/Plugin/views/wizard/Node.php
8. 8.x drupal/core/modules/node/lib/Drupal/node/Plugin/views/argument_validator/Node.php
9. 8.x drupal/core/modules/node/lib/Drupal/node/Plugin/views/argument_default/Node.php
10. 8.x drupal/core/modules/node/lib/Drupal/node/Plugin/Core/Entity/Node.php

<?php

/**
 * @file
 * Definition of Drupal\node\Plugin\views\argument_default\Node.
 */
namespace Drupal\node\Plugin\views\argument_default;

use Drupal\Component\Annotation\Plugin;
use Drupal\Core\Annotation\Translation;
use Drupal\views\Plugin\views\argument_default\ArgumentDefaultPluginBase;

/**
 * Default argument plugin to extract a node via menu_get_object
 *
 * This plugin actually has no options so it odes not need to do a great deal.
 *
 * @Plugin(
 *   id = "node",
 *   module = "node",
 *   title = @Translation("Content ID from URL")
 * )
 */
class Node extends ArgumentDefaultPluginBase {
  public function getArgument() {
    foreach (range(1, 3) as $i) {
      $node = menu_get_object('node', $i);
      if (!empty($node)) {
        return $node->nid;
      }
    }
    if (arg(0) == 'node' && is_numeric(arg(1))) {
      return arg(1);
    }
  }

}