- From: Patrick H. Lauke <redux@splintered.co.uk>
- Date: Wed, 29 Jun 2016 18:16:12 +0100
- To: GLWAI Guidelines WG org <w3c-wai-gl@w3.org>, "public-mobile-a11y-tf@w3.org" <public-mobile-a11y-tf@w3.org>
For reference: this discussion was started not because of the actual SC (which is in the works at the Mobile TF, and yes exceptions are already being looked at - see https://w3c.github.io/Mobile-A11y-Extension/ new SC 3.4.1). What I *did* want to bring up was the idea of Principle 4 - Robust being a better place for it https://github.com/w3c/Mobile-A11y-Extension/issues/2 So let's not get sidetracked, as that also doesn't help for swift discussions ;) P On 29/06/2016 18:09, Gregg Vanderheiden wrote: > ah - and this is always what tripped us up in WCAG 2 > > we have a good idea - but then think of times it should not apply. We > can just list those as exceptions because we Can’t think of them all. > > So we stare at them and try to see if there is some common pattern or > some common characteristic that is the reason for those exceptions. If > all we can come up with is that it should apply except when it shouldn’t > for some good reason… Then we know we can’t do in SC that is testable > since “good” isn’t testable. > > unghhhh. We literally spent years trying to figure out how to get all > of the good ideas that came up into some form that would qualify as an > SC. Often we only could do part of what we wanted. > > Anybody see the magic pattern for the exceptions here? > > /gregg/ > >> On Jun 29, 2016, at 8:50 AM, Jonathan Avila >> <jon.avila@ssbbartgroup.com <mailto:jon.avila@ssbbartgroup.com>> wrote: >> >> Ø Ok — so you are thinking of an SC that requires pages to be >> viewable without requiring the user to rotate their screens in on >> format or another? >> >> Yes, but I think we need to carefully allow for some exceptions. For >> example, I believe there could be some needs such as taking pictures >> of checks for mobile deposit that may work better in landscape mode >> give the distance of the camera from the check, etc. Some games that >> scroll horizontally in landscape mode would then require two sets of >> scrollbars in portrait mode which might make the game unplayable, etc. >> >> Jonathan >> >> Jonathan Avila >> Chief Accessibility Officer >> SSB BART Group >> jon.avila@ssbbartgroup.com <mailto:jon.avila@ssbbartgroup.com> >> 703.637.8957 (Office) >> Visit us online: Website <http://www.ssbbartgroup.com/> | Twitter >> <https://twitter.com/SSBBARTGroup> | Facebook >> <https://www.facebook.com/ssbbartgroup> | Linkedin >> <https://www.linkedin.com/company/355266?trk=tyah> | Blog >> <http://www.ssbbartgroup.com/blog/> >> >> Check out our Digital Accessibility Webinars! >> <http://www.ssbbartgroup.com/webinars/> >> >> >> *From:* Gregg Vanderheiden [mailto:gregg@raisingthefloor.org] >> *Sent:* Tuesday, June 28, 2016 9:28 PM >> *To:* Patrick H. Lauke >> *Cc:* GLWAI Guidelines WG org; public-mobile-a11y-tf@w3.org >> <mailto:public-mobile-a11y-tf@w3.org> >> *Subject:* Re: Principle 4 - Robust (was Re: Help needed with >> numbering success criteria for WCAG 2.1) >> >> Ah very good >> >> that would definitely be a barrier to someone whose computer is locked >> / mounted in one position or another >> >> Ok — so you are thinking of an SC that requires pages to be viewable >> without requiring the user to rotate their screens in on format or >> another? >> Sounds like a good - and new - and testable one. >> >> anyone see a hole in this? >> >> /gregg/ >> >> >> On Jun 28, 2016, at 4:33 PM, Patrick H. Lauke >> <redux@splintered.co.uk <mailto:redux@splintered.co.uk>> wrote: >> >> >> Many sites currently do this sort of thing in a very primitive way >> (they check the browser window/viewport width/height and, if it's >> not in the "correct" ratio, they simply put a big roadblock in >> front of the content until the user changes the ratio/turns the >> device. As noted earlier in this thread, there are now more robust >> standards/techniques coming (screen orientation API, CSS >> directives that lock a view into a particular orientation, >> directives in progressive web app JSON manifests that explicitly >> set a locked orientation). And again, WCAG currently doesn't have >> the tools to flag this as a problem. >> >> P > -- Patrick H. Lauke www.splintered.co.uk | https://github.com/patrickhlauke http://flickr.com/photos/redux/ | http://redux.deviantart.com twitter: @patrick_h_lauke | skype: patrick_h_lauke
Received on Wednesday, 29 June 2016 17:16:48 UTC