Hi, Pete.
It's really good question. I can see two cases.
1. If we operate with HTML table where rowspans and colspans are used
then I believe you're right. In this case row and column indexes are
in sync with main table.
2. If we deal with pure ARIA grid where there is no way to specify
row/col spans then we could return header table of the same
width/height like for primary table. For example,
<div role="grid">
<div role="row">
<span role="gridcell">cell</span><span role="columnheader">cell</span>
</div>
<div role="row">
<span role="gridcell">cell</span><span role="gridcell">cell</span>
</div>
</div>
I think we should return table column header containing one row with
two cells (gridcell and columnheader).
Does it makes sense?
Alex.
On Fri, May 22, 2009 at 10:53 PM, Pete Brunet <[email protected]> wrote:
> Alex, A question that came up offline: When the column headers are not the
> full width of the table what is the relation between the row offset in the
> primary table and the header table?
>
> What I am remembering now is that you will get back a table, and most of the
> time the table will have one cell. A table is provided because there might
> be n rows in the header portion in which case the table would be one cell
> wide and with n rows. Or there might be a cell in the header which spans n
> columns. In that case I think you should get back a table with a single
> cell with columnExtentAt indicating it spans n columns. You could also have
> the case of a header table with two rows, with the first row containing a
> spanning cell and the second row containing n normal cells under the
> spanning cell.
>
> Also, one feedback I got was that an AT would not expect to manipulate the
> cell in the table header expecting it to reflect that change in the primary
> table.
>
> I am ccing Will Walker in case he has comments regarding AT-SPI as we will
> want to remain in harmony with it and also Xing Li since his team
> implemented table headers in Symphony.
>
> Pete
> --
> Pete Brunet
>
> a11ysoft - Accessibility Architecture and Development
> (512) 238-6967
> pete @ a11ysoft.com
> http://www.a11ysoft.com/about/
> http://www.linkedin.com/in/petebrunet
> Ionosphere: WS4G
>
> Alexander Surkov wrote:
>
> Hi.
>
> I summarized all our discussions with Pete about IAccessibleTalbe
> rowHeader/columnHeader implementation -
> https://wiki.mozilla.org/Accessibility/TableHeaders. Feedback on this
> proposal is needed.
>
> Thank you.
> Alex.
>
>
>
>
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