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[Bug 11239] Canvas support accessible caret tracking independent of Focus Ring tracking

From: <bugzilla@jessica.w3.org>
Date: Wed, 13 Apr 2011 21:52:42 +0000
To: public-html-a11y@w3.org
Message-Id: <E1QA7zO-0002rC-58@jessica.w3.org>

--- Comment #13 from Charles Pritchard <chuck@jumis.com> 2011-04-13 21:52:40 UTC ---
(In reply to comment #12)
> Working Group Decision:

In relation to this decision:
* The change to add baseline to the TextMetric interface is not adopted.
"... noted the editor's question 'which baseline?'"

Naseline properties are defined by the textBaseline section of the existing

When an author sets textBaseline to a value, that is the baseline which would
be used for the TextMetric.baseline property.

Such information is easily accessible to implementers, see for example,

The value is calculated from a combination of the ascent, descent and font
height metrics.

In relation to this decision:
* The change to remove the canDrawCustom parameter from drawFocusRing
  is not adopted.

It's my understanding that such a parameter would be specified via CSS, such as
the css outline property, as is done on other HTML elements when they are
focused. As in HTML, authors are not guaranteed that the UA/AT will "skip"
drawing focus indicators. canDrawCustom seems only to duplicate the already
existing semantics CSS provides.

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Received on Wednesday, 13 April 2011 21:52:43 UTC

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