note regarding control and ID

This was not discussed on the call last night, but I wanted to run it by you for
consideration:

## hit region definition

http://www.w3.org/html/wg/drafts/2dcontext/html5_canvas_CR/#hit-region

* Move the note found in the addHitRegion definition that reads

> "NOTE: While both ID and control are optional, when calling addHitRegion, at
least one of the two needs to be present to create a hit region. "

above the definition box so that it follows the section where we actually say
that both ID and control are optional.  It would read as follows:

[snip]

* Optionally, a non-empty string representing an ID for distinguishing the
region from others.

* Optionally, a control.

A control is a reference to an Element node, to which, in certain conditions,
the user agent will route events, and from which the user agent will determine
the state of the hit region for the purposes of accessibility tools. (The
control is ignored when it is not a descendant of the canvas element.)

NOTE: While both ID and control are optional, when calling addHitRegion, at
least one of the two needs to be present to create a hit region.

-- 
Mark Sadecki
Web Accessibility Engineer
World Wide Web Consortium, Web Accessibility Initiative
Telephone: +1.617.715.4017
Email: mark@w3.org
Web: http://w3.org/People/mark

Received on Tuesday, 15 April 2014 20:01:02 UTC