Add homepage link to language switcher, when a Node doesn't have a translation

/**
* Add homepage link to language switcher, when a node doesn't have a translation.
*/
function hook_language_switch_links_alter(&$links, $type, $path) {
  global $language;
 
  $language_default = language_default('language');
 
  if ($type == LANGUAGE_TYPE_CONTENT && isset($links[$language->language])) {
    foreach ($links as &$link) {
      // If a certain path doesn't have a link to a translated path, we want to link to the default language path if it exists, or the homepage otherwise.
      if (!isset($link['href'])) {
        if (isset($links[$language_default]['href'])) {
          $link['href'] = $links[$language_default]['href'];
        }
        else {
          $link['href'] = '<front>';
        }
 
        // Unset the locale-untranslated class.
        $key = array_search('locale-untranslated', $link['attributes']['class']);
        if (isset($link['attributes']['class'][$key])) {
          unset($link['attributes']['class'][$key]);
        }
 
      }
    }
  }
}

 

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