event.stopPropagation in MinimizeEvent not working in zk 7.0.1

asked 2014-10-07 07:48:53 +0800

sentinal
11 ● 2

updated 2014-10-09 10:36:46 +0800

This is my code

<window id="chatW" border="none" mode="overlapped"
    viewModel="@id('vm') @init('zul.chat.chattest.ChatController')"
    binder="@init(queueScope='application')"
    minimizable="true"
    onClick="@command('showChat')"
    title="${labels.conversation }" apply="org.zkoss.bind.BindComposer"
    onMinimize="@command('minimize')">
</window>

and method minimize in Controller

@Command("minimize")
@NotifyChange("minimizedWindow")
public void minimize(
        @ContextParam(ContextType.TRIGGER_EVENT) MinimizeEvent event) {
    System.out.println("in minimize event" + event);
    event.stopPropagation();
}

And when i click on minimize button window disapear. How i can stop this event?