toRenderableList method

List? toRenderableList(Object? list, [ DOMContext<UINode>? domContext ])

Implementation

List<dynamic>? toRenderableList(Object? list,
    [DOMContext<UINode>? domContext]) {
  if (list == null) return null;

  List<dynamic> renderableList;

  if (list is List) {
    if (list.runtimeType == _listDynamicRuntimeType) {
      renderableList = list;
    } else {
      renderableList = List<dynamic>.from(list);
    }
  } else if (list is Iterable) {
    renderableList = List<dynamic>.from(list);
  } else if (list is Map) {
    renderableList = <dynamic>[];

    for (var entry in list.entries) {
      var key = entry.key;
      var val = entry.value;
      if (isRenderable(key)) {
        renderableList.add(key);
      }
      if (isRenderable(val) || isHTMLElement(val)) {
        renderableList.add(val);
      }
    }
  } else {
    renderableList = <dynamic>[list];
  }

  return renderableList;
}