public static function Disqus::displayDisqusComments in Disqus 8

Post render function of the Disqus element to inject the Disqus JavaScript.

File

src/Element/Disqus.php, line 61

Class

Disqus

Provides Disqus render element.

Namespace

Drupal\disqus\Element

Code

public static function displayDisqusComments($title, $url, $identifier, $callbacks) {
  $disqus_settings = \Drupal::config('disqus.settings');

  /** @var \Drupal\Core\Render\RendererInterface $renderer */
  $renderer = \Drupal::service('renderer');
  $element = [
    '#theme_wrappers' => [
      'disqus_noscript',
      'container',
    ],
    '#attributes' => [
      'id' => 'disqus_thread',
    ],
  ];
  $renderer
    ->addCacheableDependency($element, $disqus_settings);
  $disqus = [
    'domain' => $disqus_settings
      ->get('disqus_domain'),
    'url' => $url,
    'title' => $title,
    'identifier' => $identifier,
  ];

  // If the user is logged in, we can inject the username and email for
  // Disqus.
  $account = \Drupal::currentUser();
  if ($disqus_settings
    ->get('behavior.disqus_inherit_login') && !$account
    ->isAnonymous()) {
    $renderer
      ->addCacheableDependency($element, $account);
    $disqus['name'] = $account
      ->getAccountName();
    $disqus['email'] = $account
      ->getEmail();
  }

  // Provide alternate language support if desired.
  if ($disqus_settings
    ->get('behavior.disqus_localization')) {
    $disqus['language'] = \Drupal::languageManager()
      ->getCurrentLanguage()
      ->getId();
  }

  // Check if we are to provide Single Sign-On access.
  if ($disqus_settings
    ->get('advanced.sso.disqus_sso')) {
    $disqus += \Drupal::service('disqus.manager')
      ->ssoSettings();
  }

  // Pass callbacks on if needed. Callbacks array is two dimensional array
  // with callback type as key on first level and array of JS callbacks on the
  // second level.
  // Example:
  // @code
  // $element = [
  //   '#type' => 'disqus',
  //   '#callbacks' = [
  //     'onNewComment' => [
  //       'myCallbackThatFiresOnCommentPost',
  //       'Drupal.mymodule.anotherCallbInsideDrupalObj',
  //     ],
  //   ],
  // ];
  // @endcode
  $callbacks = unserialize($callbacks);
  if (!empty($callbacks)) {
    $disqus['callbacks'] = $callbacks;
  }

  // Check if we want to track new comments in Google Analytics.
  if ($disqus_settings
    ->get('behavior.disqus_track_newcomment_ga')) {

    // Add a callback when a new comment is posted.
    $disqus['callbacks']['onNewComment'][] = 'Drupal.disqus.disqusTrackNewComment';

    // Attach the js with the callback implementation.
    $element['#attached']['library'][] = 'disqus/ga';
  }

  // Add the disqus.js and all the settings to process the JavaScript and load
  // Disqus.
  $element['#attached']['library'][] = 'disqus/disqus';
  $element['#attached']['drupalSettings']['disqus'] = $disqus;
  return $element;
}