search method

@override SearchResult search(SearchQuery<T> query)

Implementation

@override
SearchResult search(SearchQuery<T> query) {
  if (searchFilter != null) {
    query = SearchQuery(query.query, searchFilter, query.selectedValue);
  }
  if (query.query.isEmpty) {
    bool hasSelectedValue = false;
    if (searchFilter != _keepOrderFilter) {
      for (var item in children) {
        if (item.search(query).hasSelectedValue) {
          hasSelectedValue = true;
          break;
        }
      }
    }
    return SearchResult(0, hasSelectedValue);
  }
  int score = 0;
  bool hasSelectedValue = false;
  for (var item in children) {
    var result = item.search(query);
    score += result.score;
    if (searchFilter != _keepOrderFilter && result.hasSelectedValue) {
      hasSelectedValue = true;
    }
  }
  return SearchResult(score, hasSelectedValue);
}