function address_map_link_preprocess_field in Address Map (& Directions) Link 8

Implements hook_preprocess_HOOK() for field templates.

Adds link around address fields.

File

./address_map_link.module, line 144

Contains address_map_link.module.

Code

function address_map_link_preprocess_field(&$variables) {
  if ($variables['element']['#field_type'] === 'address') {

    // Drill down to field formatter settings.
    $render_display = EntityViewDisplay::collectRenderDisplay($variables['element']['#object'], $variables['element']['#view_mode']);
    $field_display = $render_display
      ->getComponent($variables['element']['#field_name']);

    // Check setting to determine if we are supposed to render as a link.
    if (isset($field_display['third_party_settings']['address_map_link'])) {
      $settings =& $field_display['third_party_settings']['address_map_link'];
      if ($settings['link_address'] && isset($settings['map_link_type'])) {

        /** @var \Drupal\address_map_link\MapLinkManager $mapLinkManager */
        $mapLinkManager = \Drupal::service('plugin.manager.map_link');

        /** @var \Drupal\address_map_link\MapLinkInterface $mapLinkType */
        $mapLinkType = $mapLinkManager
          ->createInstance($settings['map_link_type']);

        // Check setting, determine if we should open the link in a new window.
        $openInNewWindow = !empty($settings['map_link_new_window']);

        // Check setting to determine where we are placing the link.
        $linkPosition = !empty($settings['map_link_position']) ? $settings['map_link_position'] : 'address';

        // Check setting to determine the link's text.
        if (!empty($settings['map_link_text'])) {
          $linkText = Html::escape($settings['map_link_text']);

          // Replace tokens if token module is enabled.
          if (\Drupal::moduleHandler()
            ->moduleExists('token')) {
            $linkText = \Drupal::token()
              ->replace($linkText, [
              $variables['element']['#entity_type'] => $variables['element']['#object'],
            ]);
          }
        }
        else {
          $linkText = t('View Map');
        }

        /** @var \Drupal\address\AddressInterface $item */
        foreach ($variables['element']['#items'] as $delta => &$item) {
          $url = $mapLinkType
            ->getAddressUrl($item)
            ->toString();
          $aTagOpen = '<a href="' . $url . '" class="address-map-link"' . ($openInNewWindow ? ' target="_blank"' : '') . '>';
          $aTagClose = '</a>';

          // Define prefix and suffix if not already set.
          if (!isset($variables['items'][$delta]['content']['#prefix'])) {
            $variables['items'][$delta]['content']['#prefix'] = '';
          }
          if (!isset($variables['items'][$delta]['content']['#suffix'])) {
            $variables['items'][$delta]['content']['#suffix'] = '';
          }
          switch ($linkPosition) {
            case 'before':
              $variables['items'][$delta]['content']['#prefix'] = $aTagOpen . $linkText . $aTagClose . $variables['items'][$delta]['content']['#prefix'];
              break;
            case 'after':
              $variables['items'][$delta]['content']['#suffix'] .= $aTagOpen . $linkText . $aTagClose;
              break;
            case 'address':
            default:
              $variables['items'][$delta]['content']['#prefix'] = $aTagOpen . $variables['items'][$delta]['content']['#prefix'];
              $variables['items'][$delta]['content']['#suffix'] .= $aTagClose;
              break;
          }
        }
      }
    }
  }
}