881048 - Recognizing column headers marked up as TH in a table- improvement needed) – NVDA Community#3245

Status: NEW

(Core :: Disability Access APIs, enhancement, P2)

Description

[spanchang02]

Attachment: Table-multi-col.htm

User Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; .NET CLR 1.1.4322; .NET CLR 2.0.50727; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729)

Steps to reproduce:

I filed a bug with NVDA  (nvaccess.org). 


Actual results:

This concerns an enhancement  request for exposing header cells in a data table accepted by NVDA #3245. They recommend a bug report needs to be filed first with Mozilla Firefox.
"For Firefox, NVDA uses the information Firefox exposes via IAccessible2 to determine table headers, so any enhancement to this needs to be done by Mozilla. I'd recommend filing a bug with Mozilla".
Reference:
http://community.nvda-project.org/ticket/3245



Expected results:

Issue Details: 
Recognizing column headers marked up as TH in a table- improvement needed) – NVDA Community#3245
It is very good that NVDA reads column header cells that occupy 2 or more rows of a data table as in
​http://mars.dequecloud.com/demo/Table-multi-col.htm
So when one navigates to the right, NVDA correctly announces 
US $million + Current + Quarter-1 because these are all TH and contiguous. And of course they happen to be within the THEAD. 

But NVDA needs to be tweaked so that 

1. it only reads: 
•the nearest TH-cell above it and 
•any cells above that are contiguous to this cell and are also marked up as TH 
Provided only TH-cells without scope=row are interpreted as column headers. 

Plus

2. All cells marked up as TH within the THEAD for that column. 
That means, when one navigates left into column #1 , say for the gross profit rows under Toys, NVDA  should only announce 'Toys' as the column header ... not 'Handbags and Accessories'. 
Thanks,
Sailesh

Comment 1

[James Teh [:Jamie]]

We should fix this in CachedTableAccessible, since that's what we will be using for web content once CTW ships.