public function GoogleAdwordsTracker::attachTrackingToElement in Google AdWords Conversion Tracking 8

Add tracking JS to a render element

@returns null

Parameters

array $element: Render element onto which #js will be attached

Boolean $empty: Empty tracking list after attaching?

Throws

\Exception If a non-array is passed as an argument

File

src/GoogleAdwordsTracker.php, line 90

Contains Drupal\google_adwords\GoogleAdwordsTracker.

Class

GoogleAdwordsTracker

Class GoogleAdwordsTracker.

Namespace

Drupal\google_adwords

Code

public function attachTrackingToElement(&$element, $empty = TRUE) {
  if (!static::hasTracking()) {
    return;
  }
  if (!is_array($element)) {

    /**
     * @todo create custom exception for this
     */
    throw new \Exception('Non render array passed for GoogleAdwords Tracking JS attachments');
  }

  /**
   * @var \Drupal\Core\Config\ImmutableConfig $config
   *   saved settings for google_adwords
   */
  $config = \Drupal::config('google_adwords.settings');

  // make sure that our adwords js is loaded ( @see google_adwords.libraries.yml )
  // #page won't accept JS anymore : element['#attached']['js']['external-google-adwords-script'] = $config->get('external_script'); // 'https://www.googleadservices.com/pagead/conversion.js';
  $element['#attached']['library'][] = 'google_adwords/google_adwords.tracker';
  $element['#attached']['library'][] = 'node/drupal.node.admin';

  // Add our JS values array
  $element['#attached']['drupalSettings']['google_adwords'] = [
    'defaults' => [
      'conversion_id' => $config
        ->get('conversion_id'),
      'label' => $config
        ->get('label'),
      'language' => $config
        ->get('language'),
      'color' => $config
        ->get('color'),
      'format' => $config
        ->get('format'),
    ],
    'trackings' => static::$trackings,
  ];

  // empty our trackings in case this
  if ($empty) {
    static::$trackings = [];
  }
}