deserialize method

Implementation

@override
void deserialize(XmlElement xml)
{
  // deserialize
  super.deserialize(xml);

  // properties
  direction  = Xml.get(node: xml, tag: 'direction');
  draggable = Xml.get(node: xml, tag: 'draggable');
  scrollShadows = Xml.get(node: xml, tag: 'scrollshadows');
  scrollButtons = Xml.get(node: xml, tag: 'scrollbuttons');
  collapsed = Xml.get(node: xml, tag: 'collapsed');
  onpulldown  = Xml.get(node: xml, tag: 'onpulldown');
  reverse  = Xml.get(node: xml, tag: 'reverse');

  // clear items
  this.items.forEach((_,item) => item.dispose());
  this.items.clear();

  // Process Items
  int i = 0;
  List<ListItemModel> items = findChildrenOfExactType(ListItemModel).cast<ListItemModel>();

  // set prototype
  if ((!S.isNullOrEmpty(datasource)) && (items.isNotEmpty))
  {
    prototype = WidgetModel.prototypeOf(items[0].element);
    items.removeAt(0);
  }

  // build items
  for (var item in items) {
    this.items[i++] = item;
  }
}