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Re: Fw: Personalizations and Media Queries 4

From: Janina Sajka <janina@rednote.net>
Date: Tue, 9 Feb 2016 07:01:47 -0500
To: Fred Esch <fesch@us.ibm.com>
Cc: W3C WAI Accessible Platform Architectures <public-apa@w3.org>
Message-ID: <20160209120147.GB1859@opera.rednote.net>
See also the emerging related discussion on the Dpub-ARIA Task Force email list:

http://lists.w3.org/Archives/Public/public-dpub-aria/2016Feb/0004.html


Janina

Fred Esch writes:
> 
> 
> Want to get this in the list so I can reference it in action-2005.
> 
>                                                               
>      Regards,                                                 
>                                                               
>     Fred Esch                                                 
>  Watson, IBM, W3C                                             
>   Accessibility                                               
>                                                               
>  IBM Watson       Watson Release Management and Quality       
>                                                               
> 
> 
> 
> ----- Forwarded by Fred Esch/Arlington/IBM on 02/08/2016 01:47 PM -----
> 
> From:	Florian Rivoal <florian@vivliostyle.com>
> To:	"Siegman, Tzviya - Hoboken" <tsiegman@wiley.com>
> Cc:	Fred Esch/Arlington/IBM@IBMUS, "(markus.gylling@gmail.com)"
>             <markus.gylling@gmail.com>, Ivan Herman <ivan@w3.org>, Romain
>             Deltour <rdeltour@gmail.com>, "Michael Cooper (cooper@w3.org)"
>             <cooper@w3.org>
> Date:	02/08/2016 02:31 AM
> Subject:	Re: Personalizations and Media Queries 4
> 
> 
> 
> Hi,
> 
> I fully support the goal of customization, and of giving means to users to
> express preferences over how content should be styled.
> 
> However, in the general case, media queries are not a tool for that. They
> are a tool to let the author change aspects of their design in response to
> a different environment. It isn't out of question that "the environment"
> could include user preferences, but expressing these at the right
> granularity is a difficult task, and then authors are still free to ignore
> them entirely.
> 
> User style sheets seem generally more suited to let users expressed what
> stylistic changes they want on a page. Historically they have suffered from
> poor to no UI, but as a mechanism, they are appropriate for doing things
> like font size of style changes, switching from black text on white
> background to the reverse or to a sepia style, and many other things ebook
> readers have been offering their users.
> 
> Whether or not they are the actual mechanism used, in most cases user style
> sheets are in line with the behavior authors expect. When someone reading
> an ebook clicks the "sepia" button, they are telling their User Agent what
> to do to the content, not making ignorable requests to the author.
> 
> There are some areas where preference media queries may have a role to
> play, and the CSSWG is interested in looking into these even though they
> have not been prioritized so far. This would be focused on accessibility,
> tying into the OS level controls that already exist. Examples put forward
> by apple have included: preferring reduced animation, preferring using
> shapes rather than colors to draw distinctions between things, or
> preferring reduced transparency.
> 
> The difficulty is that these things need to be fairly abstract (if they
> were not, user style sheets would be more appropriate), yet actionable, and
> at the same time be a sufficiently short list that implementors and authors
> can be expected to care. The most likely path forward here is to work from
> the list of settings that pre-exist in operating systems and standardize
> that.
> 
> --
> Florian RIVOAL
> 取締役、Chief Commercial Officer
> Vivliostyle
> 
>       On Feb 4, 2016, at 03:52, Siegman, Tzviya - Hoboken <
>       tsiegman@wiley.com> wrote:
> 
>       HI Fred,
> 
>       As we discussed in today’s APA meeting [1], personalization is a huge
>       issue for DPUB and could be relevant to your a11y review of Media
>       Queries Level 4 [2]. We have several preliminary use cases [3].
>       Romain Deltour is working on a more formal use case document. I have
>       included him on this note so that he knows what priority these use
>       cases should take.
> 
>       In the current digital publishing world, at least some degree of
>       personalization is an assumption for all users. All reading systems
>       offer the user at least some options for adjusting fonts, font size,
>       background color, line height, and zoom. This has very interesting
>       implications for paged content, reflowable content, and many other
>       implications for CSS. This is not usually an aspect of the CSS for
>       the publication but built into the user agent settings.
> 
>       I have copied Florian Rivoal who is at once one of the editors for
>       Media Queries and an expert in pagination. Aside from information for
>       your review of MQs, we hope to bring these use cases to WAI for
>       practical implementation.
> 
>       Please let us know what we can do to help and if you need more
>       information about the use cases.
> 
>       Best,
>       Tzviya
> 
>       [1] https://www.w3.org/2016/02/03-apa-minutes.html
>       [2] https://drafts.csswg.org/mediaqueries-4/
>       [3] https://www.w3.org/dpub/IG/wiki/UseCase_Directory#Personalization
> 
>       Tzviya Siegman
>       Digital Book Standards & Capabilities Lead
>       Wiley
>       201-748-6884
>       tsiegman@wiley.com
> 



-- 

Janina Sajka,	Phone:	+1.443.300.2200
			sip:janina@asterisk.rednote.net
		Email:	janina@rednote.net

Linux Foundation Fellow
Executive Chair, Accessibility Workgroup:	http://a11y.org

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Accessible Platform Architectures	http://www.w3.org/wai/apa
Received on Tuesday, 9 February 2016 12:02:15 UTC

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