Ahh thanks for the post. I believe it was working for me in Beta 3, I'll check for clarification. Debugging it a bit, doesn't seem like this event is fired at a lower level of ValueBasedField, (Field<T>). Possible focus wonkiness here?
Well it does work in Beta 3, but there is an issue with focus and Enter. You can type whatever into the field and the event works fine, yet Enter is not captured, unless you mouse click the text field again (refocus).
Beta 4 doesn't capture Enter at all. Will try with Trunk SVN.
Yes, by "not working for me in Beta 3", I meant it wasn't usable for this usage, exactly for the scenario you describe (need to hit Enter twice with refocus). I was happy to see that keyPressed worked, but this one was broken too in Beta4.