public StylePropertySupport(UiBinderContext context) throws Exception {
m_context = context;
createExternalContextDescriptions();
createLocalContextDescription();
// add context descriptions
m_context.getBroadcastSupport().addListener(null, new StylePropertyEditorListener() {
@Override
public void addContextDescriptions(ObjectInfo object, List<ContextDescription> contexts)
throws Exception {
syncExternalContextDescriptions();
for (ContextDescription context : m_contextDescriptions) {