Keyboard accessibility: changing tab order

E.J. Zufelt everett at
Wed Jan 27 21:04:26 UTC 2010

On 27-Jan-10, at 3:08 PM, Colin Clark wrote:

> Hi Everett,
> Yes, I completely agree that focus should follow the visual flow of  
> the page. It can be so confusing for everyone when the tab order  
> bounces around the page incomprehensibly.
> As for the target platform for Decapod: the command line image  
> processing routines at the heart of Decapod are built and tested on  
> Linux. For a local client/server installation, we'll assume Linux  
> with a modern, capable browser. That probably means Firefox, but as  
> with everything Fluidic, we're trying to support a good range of A- 
> grade browsers.
* It would seem to me then that the UI should be tested, at the least,  
for accessibility with Orca and the magnification application for  
gnome (or any other windowing environment anticipated to be used),  
with Firefox.  I would recommend user testing with users who are  
familiar with these ATs, but also with users who are not familiar with  
these ATs, as there is a good chance that an individual using this  
product may be unfamiliar with the linux environment.  Since keyboard  
commands are reasonably similar for most screen-readers (with some  
exceptions) it would be reasonable to assume that a screen-reader user  
would be able to acclimate themself to the new AT with little  
difficulty.  Perhaps this is already in the plans.

> Thanks again for your feedback on all of this, it's super- 
> invaluable. Keep it up!
> Colin
> On 2010-01-27, at 2:39 PM, E.J. Zufelt wrote:
>> One thing to note here, which may not be relevant, is that it is  
>> important, as much as it is possible, to make sure that focus  
>> follows the visual flow of the page.  This reduces the burden of  
>> finding the focused item that can sometimes be placed on keyboard  
>> only users.
>> On a somewhat related note, what platform (OS / browser) will the  
>> Decapod UI be running on, and has / will the UI be tested with  
>> assistive technology available for that platform?
> ---
> Colin Clark
> Technical Lead, Fluid Project

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