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Re: Data Table Sort Feature

From: Devarshi Pant <devarshipant@gmail.com>
Date: Tue, 3 Mar 2015 17:11:50 -0500
Message-ID: <CAJGQbjtGCMfzcFBaQgF-L_f3_0FLs=PwFJzWo4kqYXwfT0q9DQ@mail.gmail.com>
To: Sailesh Panchang <sailesh.panchang@deque.com>
Cc: WAI Interest Group <w3c-wai-ig@w3.org>
Sailesh,

Thanks for sharing the link. You are correct, aria-controls is not required
for something like this. Interesting to note that role = "grid" throws jaws
into the pc cursor mode. aria-label and aria-sort do however get updated
upon activating the column headers.

thanks,
Devarshi

On Tue, Mar 3, 2015 at 11:41 AM, Sailesh Panchang <
sailesh.panchang@deque.com> wrote:

> Devarshi,
>
> Is aria-controls really useful here?
> The JS needs to be fixed for the aria-label and aria-sort values.
> Besides, the focus indicator is not visible; with CSS off, the up/down
> arrows disappear. HTML images are better for the arrows I think and
> can be assigned alt.
> I realize  this is an example of static headers with sort feature. So
> consider adapting from the technique here
> http://juicystudio.com/article/accessible_data_tables_static_headers.php
> Exposing 2 tables to SR users and using a summary to explain the
> disconnect is a no-no for me.
> Thanks,
> Sailesh
>
>
> On 3/3/15, Devarshi Pant <devarshipant@gmail.com> wrote:
> > Sailesh,
> > The second grid seems to associate the headers in the first grid, and
> that
> > could be due to the use of aria-controls - is that a correct observation?
> > Some questions -
> >>It's not clear whether this is an example of incorrect aria use, or maybe
> > aria overuse. Assuming aria (code) is correctly used, and screen reader
> is
> > incorrectly interpreting the code, is it a violation / failure?
> >> Visually it's a single data table, not structurally. Would it be okay to
> > suggest in the table summary of the first grid something like, "There are
> > two tables; this is the first table that hosts header cells. Table data
> > follows in the second table." Should it then be considered navigable by
> > screen reader users?
> >>Is it reasonable to code to specs and not worry about how assistive
> > technologies would react (in the interim, determine workarounds), knowing
> > that someday these will eventually merge?
> > -Devarshi
> >
> >
> > On Mon, Mar 2, 2015 at 4:49 PM, Sailesh Panchang
> > <sailesh.panchang@deque.com
> >> wrote:
> >
> >> Devarshi,
> >> I am testing with JAWS 16, NVDA 2015.1:
> >>
> >> There are two grids and column header row is repeated in both; the
> >> first has no data rows and the 2nd grid has an empty first row.
> >> This is confusing in itself.
> >> Then:
> >> On loading the page, on grid#1:
> >> aria-controls=example
> >> aria-label=Name: activate to sort column descending
> >> aria-sort=ascending
> >> Then I sorted the table using age:
> >> aria-controls=example
> >> aria-label=Name: activate to sort column ascending
> >> aria-sort=ascending
> >> In grid#2:col headers are in row#2  and I see
> >> aria-controls=example
> >> aria-label=Age: activate to sort column ascending
> >> aria-sort=descending
> >>
> >> An example of incorrect ARIA use?
> >> Thanks,
> >> Sailesh
> >>
> >>
> >> On 3/2/15, Devarshi Pant <devarshipant@gmail.com> wrote:
> >> > HI All,
> >> > Can someone test with a screen reader and determine if it announces
> the
> >> > sort state of the active column header:
> >> > http://www.datatables.net/examples/basic_init/scroll_y.html#
> >> >
> >> > I get the following results:
> >> >>JAWS 13 and IE9 convey that headers are sortable but do not announce
> >> >> the
> >> > states (ascending / descending) once invoked. Note that the active
> >> > state gets announced on tabbing and then shift tabbing back.
> >> >>NVDA does not announce the headers.
> >> > Would be nice to see additional test results.
> >> > Thanks,
> >> > Devarshi
> >> >
> >>
> >
>
Received on Tuesday, 3 March 2015 22:12:37 UTC

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