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Re: browser support for heading navigation

From: Christophe Strobbe <christophe.strobbe@esat.kuleuven.be>
Date: Fri, 02 Sep 2011 14:31:34 +0200
Message-Id: <6.2.5.6.2.20110902142923.02e3b018@esat.kuleuven.be>
To: w3c-wai-ig@w3.org
Hi Wayne,

At 23:48 31-8-2011, Wayne Dick wrote:
>Visible heading navigation should be part of UAAG 2.0 at Level A.

This may be the intent of UAAG 2.0 SC 2.5.7: 
<http://www.w3.org/TR/UAAG20/#sc-257>.
However, this is only at Level AAA and does not mention keyboard shortcuts.

Best regards,

Christophe


>The
>Document Outline features of HTML 5 should also be visible as views in
>browsers.  Visual readers with low vision are often distracted by even
>the lowest verbosity settings of screen readers. It is pretty hard to
>concentrating on read with compromised eyes, but a jabbering program
>in the background can make it impossible.  I have actually used screen
>readers with the sound turned off, just to get to the heading
>navigation.
>
>The average person with low vision who reads visually gets between 25
>to 100 words per page per screen-- one viewport, now wasted space.
>That makes scrolling down a serious problem.  Visual heading and
>document outline maps provided by the browser would be a god send.
>
>Add-ons and extensions are nice, but they have a high fatality rate,
>and each time a browser upgrades your workflow hits the skids.   I've
>convinced myself, heading and document outline maps should be part of
>browsers a UAAG 2.0 requirement.
>
>Wayne Dick
>
>On 8/31/11, John Foliot <jfoliot@stanford.edu> wrote:
> > Christophe Strobbe wrote:
> >>
> >> The list of keyboard shortcuts for Opera 11.10 does not list
> >> shortcuts for navigating headings :
> >> <http://help.opera.com/Windows/11.10/en/keyboard.html>. The tutorial
> >> "Use Opera without a mouse" states that you can use the keys W and S
> >> to navigate to the previous and next header [sic!] on the page:
> >> <http://www.opera.com/browser/tutorials/nomouse/>. Unfortunately,
> >> this tutorial is not referenced by the page with keyboard shortcut
> >> and the keys don't work if you don't enable them in the preferences
> >> (the tutorial does not tell you that; see
> >> 
> <http://www.456bereastreet.com/archive/201003/heading_navigation_in_web>> 
> _browsers/>
> >> for the instructions).
> >
> > Hi Christophe,
> >
> > That's not good.  I am BCC'ing my Opera Posse to see if that can't be
> > addressed more elegantly.
> >
> >
> >>
> >> Other browsers, with larger "market shares" than Opera, don't support
> >> heading navigation.
> >> There are a few extensions for Firefox, but they are either aimed at
> >> mouse users or outdated.
> >
> > Mozilla's rapid release schedule is breaking lots of extensions/plugins,
> > which is a PITA.  For the slightly more adventurous, hacking plug-ins to
> > work in next-release Firefox builds is not that hard, although it is a HACK
> > and done AT YOUR OWN RISK; I CANNOT BE RESPONSIBLE FOR ANY NEGATIVE
> > OUTCOMES. YOU HAVE BEEN WARNED!
> >
> > HOW TO:
> >
> > 1) Download and SAVE the .xpi file (the Firefox plug-in installer file)
> > 2) Change the file extension from .xpi to .zip
> > 3) Expand the zip file and find the 'install.rdf' file
> > 4) Open install.rdf in a text editor, and look for <em:maxVersion>, change
> > the value to the current browser version (i.e., update it from 5.* to 6.*,
> > or whatever)
> > 5) Save the file, reinsert it into the original zip, then rename the
> > file.zip back to file.xpi
> > 6) Double click on the .xpi file and it should initiate the 'new'
> > installation
> >
> > REPEATING FOR THE HARD OF READING - THIS IS A HACK, AND DOING SO IS AT YOUR
> > OWN RISK; I CANNOT BE RESPONSIBLE FOR ANY NEGATIVE OUTCOMES. YOU HAVE BEEN
> > WARNED!
> >
> > That said, I have had to do this to a few of my more favorite plugins
> > (including the Mozilla Accessibility Extensions/FAE toolbar), 
> usually within
> > hours of my 'forced' FireFox update, and so far it has all gone well.
> >
> > Hope this helps.
> >
> > JF
> >
> >
> >
> >

-- 
Christophe Strobbe
K.U.Leuven - Dept. of Electrical Engineering - SCD
Research Group on Document Architectures
Kasteelpark Arenberg 10 bus 2442
B-3001 Leuven-Heverlee
BELGIUM
tel: +32 16 32 85 51
http://www.docarch.be/
Twitter: @RabelaisA11y
---
Open source for accessibility: results from the AEGIS project 
www.aegis-project.eu
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Received on Friday, 2 September 2011 12:32:33 GMT

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