- From: David MacDonald <david100@sympatico.ca>
- Date: Thu, 7 May 2020 11:35:19 -0400
- To: Jonathan Avila <jon.avila@levelaccess.com>
- Cc: Alastair Campbell <acampbell@nomensa.com>, John Foliot <john.foliot@deque.com>, "WCAG list (w3c-wai-gl@w3.org)" <w3c-wai-gl@w3.org>
- Message-ID: <CAAdDpDbBO=yJpyd_1ohebvEURp-ktxXm5o5b1K3-v-FwBO6xWw@mail.gmail.com>
> I do not read it as an “if” statement. hmmm.... IF its a keyboard operable interface it needs a mode with visible focus, ELSE it fails 2.1.1 but perhaps that is splitting hairs... I think we are saying the same thing. Cheers, David MacDonald *Can**Adapt* *Solutions Inc.* Tel: 613-806-9005 LinkedIn <http://www.linkedin.com/in/davidmacdonald100> twitter.com/davidmacd GitHub <https://github.com/DavidMacDonald> www.Can-Adapt.com <http://www.can-adapt.com/> * Adapting the web to all users* * Including those with disabilities* If you are not the intended recipient, please review our privacy policy <http://www.davidmacd.com/disclaimer.html> On Thu, May 7, 2020 at 10:08 AM Jonathan Avila <jon.avila@levelaccess.com> wrote: > Mode of operation allow for situations like iOS where you can turn on or > off full keyboard access or situations where a keyboard interface can be > coupled with the device or not, etc. I don’t see any harm in keeping > it. It’s similar to our mechanism language in other criteria. I do not > read it as an “if” statement. > > > > Jonathan > > > > *From:* David MacDonald <david100@sympatico.ca> > *Sent:* Thursday, May 7, 2020 8:38 AM > *To:* Alastair Campbell <acampbell@nomensa.com> > *Cc:* John Foliot <john.foliot@deque.com>; WCAG list (w3c-wai-gl@w3.org) < > w3c-wai-gl@w3.org> > *Subject:* Re: Mode of operation text > > > > *CAUTION:* This email originated from outside of the organization. Do not > click links or open attachments unless you recognize the sender and know > the content is safe. > > > > HI Alastair > > > > > does anyone remember why that phrasing was used originally? > > > > I think the phrase "mode of operation" originated from an article that > we referenced in 2000 ... was it that long ago :0 ? > > https://lists.w3.org/Archives/Public/w3c-wai-gl/2000AprJun/0277.html > > > > In the SC 2.4.7 it means that if the interface is keyboard operable, there > is some way (mode of operation) to ensure that the focus is always visible. > > > > It was first used in the TEITAC in about 1996-1998 which was the > foundational document for Section 508. > > Here it is referenced in the 508 Subpart C,1194.31 (a) > > > https://www.access-board.gov/guidelines-and-standards/communications-and-it/about-the-section-508-standards/section-508-standards#subpart_c > > "Products must provide at least one mode that allows access necessary to > operate all functionality of the product without requiring any physical > contact with the product beyond initial connection and setup of a special > interface device." > > > > If we need to get more on it we could reach out to Gregg, who I'm > guessing coined the phrase as he was involved in TEITAC and the 508. > > > > Cheers, > David MacDonald > > > > *Can**Adapt* *Solutions Inc.* > > Tel: 613-806-9005 > > LinkedIn > <http://www.linkedin.com/in/davidmacdonald100> > > twitter.com/davidmacd > > GitHub <https://github.com/DavidMacDonald> > > www.Can-Adapt.com <http://www.can-adapt.com/> > > > > * Adapting the web to all users* > > * Including those with disabilities* > > > > If you are not the intended recipient, please review our privacy policy > <http://www.davidmacd.com/disclaimer.html> > > > > > > On Wed, May 6, 2020 at 6:58 PM Alastair Campbell <acampbell@nomensa.com> > wrote: > > Hi John, > > > > I’m struggling to see how one can be an ‘if’ statement and not the other? > > > > After an identical start: > > - One ends “where the keyboard focus indicator is visible”. > - The other “where the keyboard focus indicator meets all of the > following”. > > > > I’m not seeing how you can read 2.4.7 differently from the new one. > > > > *> *when and where will content that does not meet SC 2.4.7 none-the-less > still be governed by this requirement > > > > The intent (see the conversation: https://github.com/w3c/wcag/issues/1067) > was to line them up, as the wording in the FPWD would have instances where > you could have no visible focus; passing the new one but failing 2.4.7. > > > > > > > As for the "*minor addition*" to the Understanding Document > (non-normative), do we have a record of a vote to approve that "minor" > update? > > > > That was part of the focus-visible enhanced changes so came under that CFC > that accepted this PR: > > > https://github.com/w3c/wcag/pull/936/files#diff-c66748f70227fe77ffcbde28768a5f6f > > > > However, at the time I added that I thought we’d have separate documents > for 2.2 (you can see the “wcag22” class in the code), but it turns out we > can’t separate the understanding docs between versions, so it did go live > before I’d intended. I’ll re-open the issue and get it in a survey. > > > > > > > More importantly however, do we have evidence of ANY "...platforms which > may not always show a focus indicator."? > > > > So there are two things here: > > 1. What was the original intent? It’s before my time, does anyone > remember why that phrasing was used originally? It isn’t explained in the > understanding doc, which is why the issue came up! > https://github.com/w3c/wcag/issues/301 > 2. Does the use of :focus-visible contravene 2.4.7? I.e. is letting > the browser decide when to show the focus indicator ok? > > > > The addition helps with the second, but whether we bring that into the > normative wording really depends on what it originally meant. > > > > For the modified second option, I think we need to keep the new SC lined > up with 2.4.7, so I’d like to get to the bottom of where that original > wording came from in order to change it. > > > > For the 1st bullet on sizing, adding the 2 CSS px along one edge is > redundant. The area of a 1px border around all edges is greater than 2px > along one edge. The con in the doc was more for things like a background > change or icon/block indicator. To solve that in the text we’d have to add > a list of things it could be, or something else. > > > > Cheers, > > -Alastair > >
Received on Thursday, 7 May 2020 15:35:44 UTC