Detect mouse/keyboard inactivity

[kevboy]

Is there a way to detect inactivity of mouse and keyboard events after a certain time?

For security reasons, we'd like to pop up a dialog to warn the user of inactivity with a timer and then send a session termination if the user doesn't respond.

Thanks!

[kevboy]

By the way, we can't use a session timeout because we have a widget polling for updates.

[Isomorphic]

Probably the simplest thing is to use the core GWT APIs for EventPreview - explanation toward the bottom here.

[Isomorphic]

To clarify - this approach will give you a low-level intercept to detect *activity*. Ever time you see an event go by you reset a timer, and if that timer ever expires, that's when you trigger your pop-up threatening to end the session.