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Re: WCAG 2.0 SC 1.4.4 - Text Zoom Vs Browser Zoom

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From: Hans Hillen
Date: Sep 19, 2014 4:14PM


As others have mentioned: with a proper responsive design, browser zooming
will yield the best results; It will cause the responsive break points to
kick in, leading to a neat easy to read, word wrapped, large text, large
image, vertical column of content that does not require any horizontal
scrolling.

These responsive breakpoints won't trigger when using text-only zoom,
although it shouldn't be to difficult to manually script this behavior.

It's also a lot easier to convince a design / dev team to invest in the
responsive approach and easier for them to implement than it is to fully
support text resizing in their original design, especially in complex
layouts.

Having said that, if the design is clean and fully responsive it's
relatively easy to also have it support text sizing up to 200%.






On Fri, Sep 19, 2014 at 11:29 PM, Rakesh P < <EMAIL REMOVED> > wrote:

> Dear All,
>
> Thank you for your inputs.
>
> Thanks,
> Rakesh
>
> On 9/17/14, Sean Curtis < <EMAIL REMOVED> > wrote:
> > Forgive me if I'm way off base here - I haven't read the entire
> > conversation, but did you try specifying the height of the image backing
> the
> > image map in EMs or REMs rather than pixels? Doing that should scale it
> with
> > the text size increases as well as zooming.
> >
> > It might not be maintainable to do constantly unless you use JavaScript.
> >
> > Cheers,
> >
> > Sean
> >
> >> On 17 Sep 2014, at 7:44 am, < <EMAIL REMOVED> > wrote:
> >>
> >> Jared,
> >>
> >> I read through your comments on Alastairc article from 2013 where you
> very
> >> clearly articulated an acceptable solution for text resizing:
> >>
> >> Level AA
> >> - Zoom at 200%
> >> - Text sizing at 150%
> >>
> >> Now, what authors of RWD website want to lean towards is if its RWD then
> >> test for only text with zoom at 200% (no text resize) and for
> >> non-responsive text resize at 200%.
> >>
> >> I find it hard ti digest that when designing for RWD wouldn't HTML/CSS
> >> technologies provide support to resize text?
> >>
> >> Do you'll have examples of RWD sites that support text resize? I know
> >> WCAG's S.C 1.4.4 accepts Page zoom but I cant and is true for most of us
> >> as we believe Accessibility is about user and beyond guidelines.
> >>
> >> Pooja Nahata
> >> Practice Lead - Accessibility CoE
> >> Mobile: 1-623-419-3582 | 1-678-294-4742
> >> Digital Accessibility Blog
> >>
> >>
> >>
> >>
> >> -----Original Message-----
> >> From: <EMAIL REMOVED>
> >> [mailto: <EMAIL REMOVED> ] On Behalf Of Detlev
> Fischer
> >> Sent: Tuesday, September 16, 2014 1:06 PM
> >> To: WebAIM Discussion List
> >> Subject: Re: [WebAIM] WCAG 2.0 SC 1.4.4 - Text Zoom Vs Browser Zoom
> >>
> >> Just to clarify, I was only answering Rakesh's initial question ("Is the
> >> global zoom a sufficient way to execute and test S.C 1.4.4?") by
> rendering
> >> what I believe is still the current WCAG working group position. And the
> >> answer is: Yes, it is. But clearly, if it is possible to support text
> >> resizing as well that would be better (it might be hard to implement in
> >> the scenario Rakesh has described, though).
> >>
> >> I agree with Denis and Jared that it is good to support text resizing
> >> wherever possible - I have seen that in many LV user tests now and have
> >> argued in favour of making text-only resizing a WCAG requirement (but
> only
> >> up to 150% - a position which is in synch with what Jared suggested in
> >> "WCAG next"). The WCAG WG thought otherwise, and responsive web design
> and
> >> the growth of the mobile web have changed the situation anyway (as
> >> Alastair has pointed out).
> >>
> >> I have tried to render the entire argument about text and zoom resizing
> in
> >> an article a while ago:
> >>
> >> "Text resizing: Why page zoom is not good enough - or is it?"
> >>
> http://www.bitvtest.eu/articles/article/lesen/zoom-and-text-resizing.html
> >>
> >> Just for those who would enjoy a recap...
> >>
> >> Best,
> >> Detlev
> >>
> >>> On 16 Sep 2014, at 18:25, "Stanzel, Susan - FSA, Kansas City, MO"
> >>> < <EMAIL REMOVED> > wrote:
> >>>
> >>> Then for testing wouldn't we have to do both types of testing? I use
> >>> JAWS, but we always have to give meaning to the images if it is more
> than
> >>> decoration. It seems to me if the person can't enlarge the image
> >>> something will be missed.
> >>>
> >>> Susie
> >>>
> >>> -----Original Message-----
> >>> From: <EMAIL REMOVED>
> >>> [mailto: <EMAIL REMOVED> ] On Behalf Of Lewis
> >>> Phillips
> >>> Sent: Tuesday, September 16, 2014 10:57 AM
> >>> To: WebAIM Discussion List
> >>> Subject: Re: [WebAIM] WCAG 2.0 SC 1.4.4 - Text Zoom Vs Browser Zoom
> >>>
> >>> Susie,
> >>>
> >>> Text zoom only increases the text size and doesn't change the image
> size.
> >>> If there is an important information in the image (text, chart) this is
> >>> not enlarged with text zoom.
> >>>
> >>>> On Tue, Sep 16, 2014 at 10:43 AM, Stanzel, Susan - FSA, Kansas City,
> MO
> >>>> < <EMAIL REMOVED> > wrote:
> >>>>
> >>>> What does text zoom do to the images on the page which could be
> >>>> important?
> >>>>
> >>>> Susie Stanzel
> >>>>
> >>>> -----Original Message-----
> >>>> From: <EMAIL REMOVED> [mailto:
> >>>> <EMAIL REMOVED> ] On Behalf Of Karl Groves
> >>>> Sent: Tuesday, September 16, 2014 10:06 AM
> >>>> To: WebAIM Discussion List
> >>>> Subject: Re: [WebAIM] WCAG 2.0 SC 1.4.4 - Text Zoom Vs Browser Zoom
> >>>>
> >>>> Rakesh,
> >>>>
> >>>> You might want to take a look at prior conversations on this list and
> >>>> the WAI-IG list, as I recall two pretty informative discussions on
> this
> >>>> topic.
> >>>>
> >>>> Also, this comprehensive post by Denis Boudreau
> >>>> http://www.denisboudreau.org/blog/2013/07/why-browser-zoom-testing-su
> >>>> c
> >>>> ks-for-accessibility/
> >>>>
> >>>>
> >>>>> On Tue, Sep 16, 2014 at 4:24 AM, Rakesh P < <EMAIL REMOVED> >
> wrote:
> >>>>> Dear All,
> >>>>>
> >>>>> We have a web application where content on the site is getting
> >>>>> restructured if we use global zoom to magnify the content.
> >>>>> In one of the page, there is a chart image with image hot spots
> >>>>> (functional links) as indicator of some chart value. When we do
> >>>>> global zoom, the entire chart (with image hot shots) is getting
> >>>>> re-sized and no distortion is happening. But with Text Zoom (using
> >>>>> Text Zoom option in Firefox browser), only the text is re-sizing and
> >>>>> not the chart image, so the position of image hot spots are getting
> >>>>> distorted and this will definitely create some difficulty for user
> >>>>> using text zoom (low vision user).
> >>>>> As per WCAG SC 1.4.4 (Text Re-size), the content of the page should
> >>>>> not be clipped, truncated or obscured with 200% Text Zoom.
> >>>>> We want to understand, in a scenario like this, where Global Zoom is
> >>>>> handled efficiently and doesn't cause any loss of information or
> >>>>> horizontal scroll, is it really required to handle distortion caused
> >>>>> by browser text zoom? Is the global zoom a sufficient way to execute
> >>>>> and test S.C 1.4.4?
> >>>>>
> >>>>> Thanks & Regards
> >>>>> Rakesh Paladugula
> >>>>> > >>>>> > >>>>> list messages to <EMAIL REMOVED>
> >>>>
> >>>>
> >>>>
> >>>> --
> >>>>
> >>>> Karl Groves
> >>>> www.karlgroves.com
> >>>> @karlgroves
> >>>> http://www.linkedin.com/in/karlgroves
> >>>> Phone: +1 410.541.6829
> >>>>
> >>>> Modern Web Toolsets and Accessibility
> >>>> https://www.youtube.com/watch?v=_uq6Db47-Ks
> >>>>
> >>>> www.tenon.io
> >>>> > >>>> > >>>> list messages to <EMAIL REMOVED>
> >>>>
> >>>>
> >>>>
> >>>>
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> >>> > >>> > >>> list messages to <EMAIL REMOVED>
> >>
> >> --
> >> Detlev Fischer
> >> testkreis - das Accessibility-Team von feld.wald.wiese c/o
> feld.wald.wiese
> >> Thedestraße 2
> >> 22767 Hamburg
> >>
> >> Tel +49 (0)40 439 10 68-3
> >> Mobil +49 (0)1577 170 73 84
> >> Fax +49 (0)40 439 10 68-5
> >>
> >> http://www.testkreis.de
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> >>
> >>
> >>
> >>
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