method findNodes

Source

List<Element> findNodes(String selector, [bool matcher(Element e)]) {
  var nodes = element.querySelectorAll(selector).toList();
  var content = templateContent;
  if (content != null) {
    nodes = nodes..addAll(content.querySelectorAll(selector));
  }
  if (matcher != null) return nodes.where(matcher).toList();
  return nodes;
}