connectedCallback method

Implementation

@override
void connectedCallback() {
  applyStyle(style);
  style.flushPendingProperties();
  if (_connectedCompleter != null) {
    _connectedCompleter!.complete();
  }

  super.connectedCallback();
  _updateNameMap(getAttribute(_nameAttr));
  _updateIDMap(_id);
  // Index classes for connected element
  _updateClassIndex(const <String>[], _classList);
  // Index all present attributes for connected element
  if (attributes.isNotEmpty) {
    for (final name in attributes.keys) {
      _updateAttrPresenceIndex(name, present: true);
    }
  }
}