[whatwg] Scoped tabindex proposal
Martin Atkins
mart at degeneration.co.uk
Thu Aug 31 12:27:49 PDT 2006
Simon Pieters wrote:
>
> So here's an idea. A new value for the tabindex attribute, "scoped".
> Here's an example:
>
> <p>The following links should be focused in the order which the link
> text indicates:
> <p><a href="#">first</a>
> <table tabindex="scoped">
> <tr>
> <td><a href="#" tabindex="1">second</a>
> <td><a href="#" tabindex="3">forth</a>
> <tr>
> <td><a href="#" tabindex="2">third</a>
> <td><a href="#" tabindex="4">fifth</a>
> </table>
> <p><a href="#">last</a>
>
> The table itself is not in the tab order and is not focusable.
>
The table might not be focusable, but it needs to be in the tab order in
some sense in order to resolve that local tabindex="1" into a global
tabindex.
For example:
<a id="outside1" href="..." tabindex="1">...</a>
<div tabindex="scoped" id="container1">
<a id="inside1" href="..." tabindex="1">...</a>
</div>
<div tabindex="scoped" id="container2">
<a id="inside2" href="..." tabindex="1">...</a>
</div>
<a id="outside2" href="..." tabindex="2">...</a>
What is the global tab order now?
I could see arguments for either:
#outside1
#inside1
#inside2
#outside2
(DOM order)
or...
#outside1
#outside2
#inside1
#inside2
(all of the explicit tabindexes first in index order, followed by
everything else in DOM order)
Now what if I want the elements of #container2 to be before those of
#container1 in the tab order? Can I also give these DIVs a tabindex?
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