[whatwg] hit regions: limited set of elements for fallback content

[Dominic Mazzoni]

On Tue, Feb 18, 2014 at 11:39 AM, Ian Hickson <ian at hixie.ch> wrote:

> > > What happens if the keyboard focus and the AT focus get so far from
> each
>
> > other that we can't render both at the same time? Which should we be
> > > rendering?
> > >
> > > How do native apps handle these cases?
>
> This example actually adds more questions:
>
> How do we handle the multiple focus case? (There's focus in the crossword
> and in the clue list at the same time.)
>

I don't think multiple things are focused at once. Rather, certain
composite controls have a notion of which cell is "active", that becomes
the focused cell when you focus it. If you have a <select multiple> control
on your page, you can tell which items are selected even when it isn't
focused, and I think this is the same thing.


> Do we expose the way each cell can be focused in two different directions?
>

I don't see how that would translate into an accessibility API, even in a
native app. I think the author would have to semantically convey that via
some other means.