Hey everyone,
I noticed that my widget still listens to events from EventBus event after
I remove them from the DOM and after I clear all my references to them. I
was thinking if this was because of the EventBus bus handler the widget
has. Or I am missing something !
Anyway here is a simplified test illustrating this. The Event i'm using is
a basic custom event and the Window.alert is there just to make sure the
event is received.
class TestWidget extends Composite {
public TestWidget(final int id) {
// register to event
EVENT_BUS.addHandler(UpdateDataEvent.TYPE, new UpdateDataEventHandler() {
public void onUpdate(UpdateDataEvent event) {
logger.log("n°" + id + " living");
}
});
initWidget(new HTML("TestWidget #" + id));
}
}
// add test widgets to DOM
TestWidget t1 = new TestWidget(1);
TestWidget t2 = new TestWidget(2);
RootaPanel.get().add(t1);
RootaPanel.get().add(t2);
// fire event
EVENT_BUS.fireEvent(new UpdateDataEvent());
// logs as expected : #1 and #2
// little break
Window.alert("Break");
// remove one widget and force the reference to null
t1.removeFromParent();
t1 = null;
// fire event
EVENT_BUS.fireEvent(new UpdateDataEvent());
// still logs #1 and #2
Any heads-up ?
Many thanks,
Ludovit
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