10
$\begingroup$

How might I detect when an InputField comes into focus?

For example ideally something like this would work.

EventHandler[
 InputField["default", String], {
  "FocusGained" :> (MessageDialog["Focus"]),
  "FocusLost" :> (MessageDialog["unFocus"]),
  "Focus" :> (MessageDialog["Focus"])
  }
 ]

After reading this question I assumed "FocusGained,FocusLost or Focus" would do something but I haven't had any luck just yet.

Improve this question
$\endgroup$
2
  • 1
    $\begingroup$ A workaround may be to use "MouseClicked" to trigger "focus" and then use ControllerState["Button 1"] to trigger "unfocus", using "MouseEntered" and "MouseExited" to determine if the click was inside our outside the input box. $\endgroup$ – C. E. Aug 25 '13 at 17:57
  • 1
    $\begingroup$ These are not events for EventHandler but events in GUIKit. $\endgroup$ – Michael E2 Aug 26 '13 at 0:33
1
$\begingroup$

No, there is not anything documented that supports those events directly.

With so many folks digging up undocumented features I think it is safe to say that there isn't anything undocumented either.

There is a possibility of playing with indirect methods, e.g. listening to SelectionData etc. but I don't think it will give us a general tool, or a scalable one.

Maybe someonce will try to cook something up with this idea, meanwhile I think it is worth to take this on from an unanswered stack.

Improve this answer
$\endgroup$
2
  • $\begingroup$ I'm assuming "meanwhile I think it is worth to take this on from an unanswered stack" means there is no sense in leaving this question unanswered when there is certainly not a clear answer. $\endgroup$ – William Feb 28 '18 at 3:26
  • $\begingroup$ @William something like that, maybe better "the answer is no but it may be that someone will provide a case specific trick". $\endgroup$ – Kuba♦ Feb 28 '18 at 7:01

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.