- From: Kim Patch <kim@redstartsystems.com>
- Date: Thu, 29 Aug 2013 14:49:22 -0700
- To: WAI-UA list <w3c-wai-ua@w3.org>
- Message-Id: <3E6D8857-F971-4D81-8470-32274F2D307B@redstartsystems.com>
Wayne's answer Cheers, Kim Kim Patch Sent from my iPhone Begin forwarded message: > From: Wayne Dick <wayneedick@gmail.com> > Date: August 29, 2013, 2:37:30 PM PDT > To: Kim Patch <kim@redstartsystems.com> > Subject: Re: Minutes of the UAWG F2F Day 2 28 August 2013 > > Hi Kim, > Nice to hear from you. > > The lack of external style access is a defect in the PDF Reader, and > it is the main reason why it is not completely accessible to people > with low vision at the present time. Actually the PDF Reader fails > (1), (2) and (3) of my operations. > > PDF has a tag system that would give access to many elements. It is > not as robust as HTML, but with external access through a style > language, PDF could give passable access. > > The problem with PDF (and HTML to a lesser degree) is a dependence on > the semantically vacuous tags like <span> used for formatting only. > This method dominates what is considered to be accessible PDF. No > clue as to an appropriate style substitution exists. It is beyond the > scope of any UA to sort this out. However, external style sheets that > would allow assignment of meaningful style to semantically useful > elements, and nullification to semantically vacuous elements would > give a passable transcription. > > I hope that helps. > > Wayne > > On 8/29/13, Kim Patch <kim@redstartsystems.com> wrote: >> Thanks for the quick answer. >> Question: how would you address user agents that have no style sheets, e.g. >> a PDF reader? >> >> Cheers, >> Kim >> >> Kim Patch >> Sent from my iPhone >> >> On Aug 29, 2013, at 12:48 PM, Wayne Dick <wayneedick@gmail.com> wrote: >> >>> Shawn's Conundrum (Mine Too) >>> >>> There is a serious issue as to the User Agent's responsibility >>> regarding element level text customization. User's need to see >>> differences in formatting to understand the organization of the >>> document they are reading, but how much should a user agent intervene >>> in this function. I think none. >>> >>> I am convinced that user agents should only have global text >>> customization commands. These should honor user settings unless users >>> override the setting explicitly. Size is one exception. You have >>> addressed that already. >>> >>> Now, how do we get element level accommodation. The answer is the >>> same way everyone gets it. Turn of author styles, linearize, and >>> apply user styles. Opera already implements user stylesheets this way. >>> That is nice but the user should have a choice. >>> >>> The Answer: >>> >>> The functionality: The user should have the option to (1) Turn of >>> author style, (2) Linearize (not data tables) and (3) Apply a user >>> style to the page obtained after (1) and (2) are applied. >>> >>> Customized style sheets for users will become a standard form of >>> assistive technology for users. Most users will not make them >>> themselves. They will use something like my T-Rx. What the user >>> needs is browser support to apply these style sheets to clean data. >>> >>> Incidentally, iPad already can apply user stylesheets, they just ruin >>> the therapeutic value by not allowing change to link colors. Other >>> e-readers are less robust, but they still could provide a reasonable >>> style-sheet access, and they should. I have found no truly effective >>> e-reader for low vision, and I have used almost all of them. >>
Received on Thursday, 29 August 2013 21:49:54 UTC