public Comboitem newComboitem(Combobox combobox) {
// clone from template
final Comboitem clone = (Comboitem) _template.clone();
// TODO: see if databinder has this kind of Comboitem, if not, add new CollectionListItem
// avoid duplicate id error, will set to new id when render()
// Bug #1962153: Data binding generates duplicate id in some case add "_".
if (clone.getId().length() > 0) {
clone.setId(null);
}
// link cloned component with template
// each Comboitem and and it descendants share the same templatemap
Map<Object, Object> templatemap = new HashMap<Object, Object>(8);
BindingRendererUtil.linkTemplates(clone, _template, templatemap, _binder);
// link this template map to parent templatemap (Combobox in Combobox)
Map parenttemplatemap = (Map) combobox.getAttribute(DataBinder.TEMPLATEMAP);
if (parenttemplatemap != null) {
templatemap.put(DataBinder.TEMPLATEMAP, parenttemplatemap);
}
// kept clone kids somewhere to avoid create too many components in browser
final List<Component> kids = new ArrayList<Component>(clone.getChildren());
clone.setAttribute(KIDS, kids);
clone.getChildren().clear();
return clone;
}
@SuppressWarnings("unchecked")
public void render(Comboitem item, Object bean, int index) throws Exception {
final List<Component> kids = cast((List) item.getAttribute(KIDS));
((List<Component>) item.getChildren()).addAll(kids);
// item.removeAttribute(KIDS);
// remove template mark of cloned component and its descendants
_binder.setupTemplateComponent(item, null);
// setup clone id
BindingRendererUtil.setupCloneIds(item);
// bind bean to the associated listitem and its descendants
final String varname = (String) _template.getAttribute(DataBinder.VARNAME);
final Map<Object, Object> templatemap = cast((Map) item.getAttribute(DataBinder.TEMPLATEMAP));
templatemap.put(varname, bean);
// apply the data binding
_binder.loadComponent(item);
// feature# 3026221: Databinder shall fire onCreate when cloning each items
DataBinder.postOnCreateEvents(item); // since 5.0.4
}
