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[Bug 10495] New: default role(s) "inheriting" for figure – common use cases

From: <bugzilla@jessica.w3.org>
Date: Sun, 29 Aug 2010 13:23:47 +0000
To: public-html-bugzilla@w3.org
Message-ID: <bug-10495-2486@http.www.w3.org/Bugs/Public/>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10495

           Summary: default role(s) "inheriting" for figure  common use
                    cases
           Product: HTML WG
           Version: unspecified
          Platform: All
               URL: http://dev.w3.org/html5/spec/content-models#annotation
                    s-for-assistive-technology-products-aria
        OS/Version: All
            Status: NEW
          Severity: major
          Priority: P1
         Component: HTML5 spec (editor: Ian Hickson)
        AssignedTo: ian@hixie.ch
        ReportedBy: xn--mlform-iua@xn--mlform-iua.no
         QAContact: public-html-bugzilla@w3.org
                CC: mjs@apple.com, mike@w3.org, public-html@w3.org
        Depends on: 10066,10484


REQUEST 1: when the sole content of a <figure>, apart from <figcaption>, is a
single element  (which can have its own children) and if that single element
has a relevant[*] *default* ARIA @role, THEN the <figure> will default to the
same @role as the default role of that single element.

[*] Some examples of relevant native/default ARIA element/role combinations:
<img> (which defaults to role="img"), <table> (which at least currently
defaults to grid).

REQUEST 2: Some elements which do not have a logical ARIA role (examples:
<audio>, <video>) should lead to similar effects: E.g in this example, the
figure element should be seen as being an "audio region":
<figure><audio><figcaption>Recording 1</figcaption</figure>

EXAMPLES:

<img> EXAMPLE : http://dev.w3.org/html5/spec/embedded-content-1.html#alt

Section '4.8.1.1 Requirements for providing text to act as an alternative for
images' contains several examples where an <img> element and a <figcaption>
element is the sole content of the <figure>.

However, none of those <figure> elements contains any role="img" attribute.
Therefore it is, for the moment, unclar what kind of <figure>, the <figcaption>
is captioning. And thus, the relationship between <img> and <figcaption> is
unclear. The examples also makes no use or @aria-labelledby

Proposal for this particular use case: Whenever the sole content of <figure> is
an <img> and <figcaption>, then the <figure> is considered to have role="img". 

<table>/<caption> EXAMPLE:
http://dev.w3.org/html5/spec/tabular-data.html#the-caption-element

Section '4.9.2 The caption element' says that ]]When a table element is the
only content in a figure element other than the figcaption, the caption element
should be omitted in favor of the figcaption.[[

This is a problematic advice, given that <figure> has no default role, while
<table>, if no default @role, at the very least is treated as a table by user
agents  which thus know that there is a relationship between <caption> and
<table>.

Proposal for this particular  use case: whenever a <table> or a <table> +
<figcaption> is the sole content of a <figure>, the then <figure> element
should be considered as having role="grid".
http://www.w3.org/TR/wai-aria/complete#grid

<audio>/<video> EXAMPLE

[ information to be added ] Logically, ARIA should have had something like
role="audio" and role="video" which worked a little bit similar to role="img".

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Received on Sunday, 29 August 2010 13:23:48 UTC

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