MenuPositionActiveTrail.php in Menu Position 8

Namespace

Drupal\menu_position\Menu

File

src/Menu/MenuPositionActiveTrail.php

<?php

namespace Drupal\menu_position\Menu;

use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Lock\LockBackendInterface;
use Drupal\Core\Menu\MenuActiveTrail;
use Drupal\Core\Menu\MenuLinkManagerInterface;
use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Menu Position active trail.
 */
class MenuPositionActiveTrail extends MenuActiveTrail {

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * Menu position settings.
   *
   * @var \Drupal\Core\Config\ImmutableConfig
   */
  protected $settings;

  /**
   * Constructs a \Drupal\Core\Menu\MenuActiveTrail object.
   *
   * @param \Drupal\Core\Menu\MenuLinkManagerInterface $menu_link_manager
   *   The menu link plugin manager.
   * @param \Drupal\Core\Routing\RouteMatchInterface $route_match
   *   A route match object for finding the active link.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache
   *   The cache backend service.
   * @param \Drupal\Core\Lock\LockBackendInterface $lock
   *   The lock backend service.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
   *   The config factory service.
   */
  public function __construct(MenuLinkManagerInterface $menu_link_manager, RouteMatchInterface $route_match, CacheBackendInterface $cache, LockBackendInterface $lock, EntityTypeManagerInterface $entity_type_manager, ConfigFactoryInterface $config_factory) {
    parent::__construct($menu_link_manager, $route_match, $cache, $lock);
    $this->entityTypeManager = $entity_type_manager;
    $this->settings = $config_factory
      ->get('menu_position.settings');
  }

  /**
   * {@inheritdoc}
   */
  public function getActiveLink($menu_name = NULL) {

    // Get all the rules.
    $query = $this->entityTypeManager
      ->getStorage('menu_position_rule')
      ->getQuery();

    // Filter on the menu name if there is one.
    if (isset($menu_name)) {
      $query
        ->condition('menu_name', $menu_name);
    }
    $results = $query
      ->sort('weight')
      ->execute();
    $rules = $this->entityTypeManager
      ->getStorage('menu_position_rule')
      ->loadMultiple($results);

    // Iterate over the rules.
    foreach ($rules as $rule) {

      // This rule is active.
      if ($rule
        ->isActive()) {
        $menu_link = $this->menuLinkManager
          ->createInstance($rule
          ->getMenuLink());
        $active_menu_link = NULL;
        switch ($this->settings
          ->get('link_display')) {
          case 'child':

            // Set this menu link to active.
            $active_menu_link = $menu_link;
            break;
          case 'parent':
            $active_menu_link = $this->menuLinkManager
              ->createInstance($menu_link
              ->getParent());
            break;
          case 'none':
            $active_menu_link = NULL;
            break;
        }
        return $active_menu_link;
      }
    }

    // Default implementation takes here.
    return parent::getActiveLink($menu_name);
  }

}

Classes

Name	Description
MenuPositionActiveTrail	Menu Position active trail.