Wt

In order to keep WApplication::focussed() up to date, the client needs to send an update every time the focus is changed.
This is quite a lot of message sent for something that may not be used by the application, and requires a lot for handler to be added via javascript.

The idea is to disable this update of the focussed widget every time the focus is changed (it would still be updated when a new signal is received). But to add an option to enable it for applications that needs it.