code: public static void bindEnabled (Value<Boolean> value, final FocusWidget... targets)
      {
          value.addListenerAndTrigger(new Value.Listener<Boolean>() {
              public void valueChanged (Boolean enabled) {
                  for (FocusWidget target : targets) {
                      target.setEnabled(enabled);
                  }
              }
          });
      }
docs: Binds the enabledness state of the target widget to the supplied boolean value.