[Ur] Grabbing focus

Alexei Golovko m-lj at yandex.ru
Tue May 22 11:07:51 EDT 2012


Can this be the second source of <ctextbox>?.. (The first one contains text, and the second holds focus state and also text selection begin and end — it may be convenient to have simple access to caret position, for example when implementing autocompletion.)

17.05.2012, 12:09, "Edward Z. Yang" <ezyang at MIT.EDU>:
> Hello all,
>
> I have a <dyn> region which at some points in time has a <ctextbox>.  What I
> would like is when some code creates the textbox, I would also like it to grab
> focus.  Now, I know I can do this with the FFI, but it would be nice if there
> was a principled way to do this from Ur/Web.  One may might be to augment the
> indexes of the tag constructor; another way might be to add a new
> meta-attribute which takes some sort of source and detects when false->true
> transitions occur.  One thing to think about is what to do when multiple
> things show up and want focus; it's not a very modular way of acting.
>
> Edward
>
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