Hi Pete, All: Janina chiming in here to try and provide overall strategic history. I'll leave the technical details to Rich, Steve, and others.
The initial problem is that HTML 5 has obsoleted (deprecated) table summary as we knew it in HTML 4. We tried to get that overturned -- to rinstate summary. Eventually, however, we backed off that effort in the expectation that we could accomplish the same purpose more strategically. The goal is that HTML 4's table summary functionality will be taken up by ARIA-1.1's ARIA-DescribedAt attribute. We have published our FPWD of ARIA-1.1 specifically to put this attribute out for discussion: http://lists.w3.org/Archives/Public/wai-xtech/2013Sep/0011.html As always with ARIA, our intent is that this attribute will be usable across markup environments, e.g. SVG as well as HTML. Also, we intend it to be usable on virtually any element. Thus, ARIA-DescribedAt could be understood to subsume HTML 4's Table Summary as well as HTML 4's (and soon HTML 5's) longdesc, among others. Meanwhile, we have determined to leave sleeping dogs lie re summary encapsulated in caption. Janina Pete Brunet writes: > Hi Rich, During another activity I was looking at caption and summary > last night and happened to end up on a W3C site that documents how > tables should be described: > www.w3.org/html/wg/drafts/html/master/tabular-data.html#table-descriptions-techniques > > This shows various techniques: > > 1) Precede the table with a paragraph and use aria-describedby > referencing that paragraph > 2) Use the caption tag > 3) Use the details tag in a caption tag (and the example shows a summary > tag under the details tag) > 4/5) Embed the table in a figure tag which has a figcaption tag > > The third case is the only one showing a summary tag, but it's a child > of the caption tag. I found an example here: > http://archive.msdn.microsoft.com/mag201212HTML5/Release/ProjectReleases.aspx?ReleaseId=5925 > > Looking at the UIA properties of a page with that markup, i.e. a > hierarchy of caption, details, summary, using Inspect with both IE and > FF I saw the full caption text including the summary in the accName / > UIA Name. From the perspective of caption that makes sense but having > summary as a substring of caption doesn't. > > Is this a proper use of the summary tag? Or is > aria-describedby/labeledby the proper technique? Is there a better > document that I should be looking at? > > Pete > > On 10/12/13 5:00 AM, Richard Schwerdtfeger wrote: > > Thanks Pete. > > > > Sent from my iPad > > > > On Oct 12, 2013, at 12:43 AM, "Pete Brunet" <[email protected] > > <mailto:[email protected]>> wrote: > > > >> The IAccessibleTable2 spec has an error. The deprecation note on the > >> caption method indicates that a describedBy relation should be used > >> and the deprecation note on the summary method indicates that a > >> labeledBy relation should be used instead. This is backwards and I > >> will submit a replacement soon. > >> > >> Pete > >> -- > >> *Pete Brunet* > >> > >> a11ysoft - Accessibility Architecture and Development > >> (512) 467-4706 (work), (512) 689-4155 (cell) > >> Skype: pete.brunet > >> IM: ptbrunet (AOL, Google), [email protected] (MSN) > >> http://www.a11ysoft.com/about/ > >> Ionosphere: WS4G > >> _______________________________________________ > >> Accessibility-ia2 mailing list > >> [email protected] > >> <mailto:[email protected]> > >> https://lists.linuxfoundation.org/mailman/listinfo/accessibility-ia2 > > -- > *Pete Brunet* > > a11ysoft - Accessibility Architecture and Development > (512) 467-4706 (work), (512) 689-4155 (cell) > Skype: pete.brunet > IM: ptbrunet (AOL, Google), [email protected] (MSN) > http://www.a11ysoft.com/about/ > Ionosphere: WS4G > _______________________________________________ > Accessibility-ia2 mailing list > [email protected] > https://lists.linuxfoundation.org/mailman/listinfo/accessibility-ia2 -- Janina Sajka, Phone: +1.443.300.2200 sip:[email protected] Email: [email protected] Linux Foundation Fellow Executive Chair, Accessibility Workgroup: http://a11y.org The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI) Chair, Protocols & Formats http://www.w3.org/wai/pf Indie UI http://www.w3.org/WAI/IndieUI/ _______________________________________________ Accessibility-ia2 mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/accessibility-ia2
