Disable Layout in button click event

Hi Marina,
if yuo have Push enabled you can force a push to send ui changes to the client

@Override
public void buttonClick(final ClickEvent event) {
    getView().setEnabled(false);
[b]    push();[/b]
    doSomething();
    getView().setEnabled(true);
}

With push enabled you can also run doSomething() and enable view in a background thread; in this case you shoul perform ui modifications through UI.access method.

If cannot enable push you should have two client-server roundtrips; for example you can register a javascript function that performs the job while the button click listeners disables the view and invokes that function.

button.addClickListener(e -> {
    getView().setEnabled(false);
    getUI().getPage().getJavaScript().execute("doTheJob()");
});

getUI().getPage().getJavaScript().addFunction("doTheJob", arguments -> {
      doSomething();
      getView().setEnabled(true);
});

HTH
Marco