CclService.php in Custom Contextual Links 8.2

Namespace

Drupal\ccl

File

src/CclService.php

<?php

namespace Drupal\ccl;

use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Url;
use Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher as EventDispatcher;
use Drupal\Core\Utility\Token;

/**
 * Class CclService.
 */
class CclService {

  /**
   * The cache service.
   *
   * @var \Drupal\Core\Cache\CacheBackendInterface
   */
  protected $cache;

  /**
   * The event dispatcher service.
   *
   * @var \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher
   */
  protected $eventDispatcher;

  /**
   * The token service.
   *
   * @var \Drupal\Core\Utility\Token
   */
  protected $token;

  /**
   * CclService constructor.
   *
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   Inject cache backend service.
   * @param \Drupal\Component\EventDispatcher\ContainerAwareEventDispatcher $event_dispatcher
   *   Inject event dispatcher service.
   * @param \Drupal\Core\Utility\Token $token
   *   Inject token service.
   */
  public function __construct(CacheBackendInterface $cache_backend, EventDispatcher $event_dispatcher, Token $token) {
    $this->cache = $cache_backend;
    $this->eventDispatcher = $event_dispatcher;
    $this->token = $token;
  }

  /**
   * Helper function to retrieve cached links and generate them if not set.
   *
   * @param string $type
   *   The id of the cache type.
   *
   * @return array
   *   The cached link data.
   */
  public function getCachedLinks($type) {
    $cachedLinks = $this->cache
      ->get($type);
    if (!isset($cachedLinks->cid)) {
      $this->eventDispatcher
        ->dispatch('ccl_update_cache');
      $cachedLinks = $this->cache
        ->get($type);
    }
    return $cachedLinks->data;
  }

  /**
   * Prepare a link for injection by running token replacement and access check.
   *
   * @param array $link
   *   The cached link object.
   * @param null|\Drupal\node\Entity\Node $node
   *   The node to sue for token replacement.
   *
   * @return array|bool
   *   If access is granted returns a link to be added to contextual links.
   */
  public function prepareLink(array $link, $node = NULL) {
    $title = $node ? $this->token
      ->replace($link['title'], [
      'node' => $node,
    ]) : $this->token
      ->replace($link['title']);
    $url = $node ? $this->token
      ->replace($link['url'], [
      'node' => $node,
    ]) : $this->token
      ->replace($link['url']);
    if ($link['urlOptions']['query']) {
      $query = $node ? $this->token
        ->replace($link['urlOptions']['query'], [
        'node' => $node,
      ]) : $this->token
        ->replace($link['urlOptions']['query']);
      parse_str($query, $link['urlOptions']['query']);
    }
    $processedUrl = Url::fromUri($url, $link['urlOptions']);
    $processedLink = [
      'title' => $title,
      'url' => $processedUrl,
      'attributes' => $link['attributes'],
    ];
    return $processedUrl
      ->access() ? $processedLink : FALSE;
  }

}

Classes

Name	Description
CclService	Class CclService.