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[Bug 12243] Warn when ARIA-describedby/-labelledby points to interactive/form associated content

From: <bugzilla@jessica.w3.org>
Date: Fri, 22 Apr 2011 22:05:27 +0000
To: public-html-a11y@w3.org
Message-Id: <E1QDOTf-0003Vi-0T@jessica.w3.org>

--- Comment #9 from Leif Halvard Silli <xn--mlform-iua@xn--mlform-iua.no> 2011-04-22 22:05:26 UTC ---
(In reply to comment #8)

And for that matter,  it also describes elements. All, IMHO, is said in the
very start of '5.2.7. Accessible Name Calculation': [1]

1. author: name comes from values provided by the author in explicit markup
features such as the aria-label attribute, aria-labelledby attribute, or the
host language labeling mechanism, such as the alt or title attributes in HTML,
with HTML title attribute having the lowest precedence for specifying a text

2. contents: name comes from the text value of the element node. Although this
may be allowed in addition to "author" in some roles, this is used in content
only if higher priority "author" features are not provided. Note: Priority is
defined by the text alternative computation algorithm.

[1] http://www.w3.org/TR/wai-aria/complete#namecalculation

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