[ARIA] [Review] ACTION-1493: Text explaining "implicit value for role" and default values.

All,

Please review the latest text regrading "supported" vs. "required" 
states and properties, and how that affects the implicit default value 
of a state or property in the context of a specific role.

The text has been adjusted based on comments from the Mar 26 2015 
teleconference.  Also, a related action was created at that meeting to 
define the implicit default values of aria-valuemin, aria-valuemax, and 
aria-valuenow when they are required (ACTION-1606).  These value 
properties are required for slider, spinbutton, and scrollbar.  It was 
decided to follow the HTML5 rules regarding the range input type and its 
min, max, and value.  There is a summary of those rules within each of 
the slider, spinbutton, and scrollbar roles.

The text changes for ACTION-1493 are the last four paragraphs of section 
7.6 "State and Property Attribute Processing", beginning with the third 
paragraph.  The first sentence of the third paragraph is "WAI-ARIA roles 
have associated states and properties that are qualified as "supported" 
or "required":
https://rawgit.com/w3c/aria/ACTION-1493/aria/aria.html#state_property_processing

An example of the default implicit values of required aria-valuemax, 
aria-valuemin, and aria-valuenow is given in the spec for the slider 
role, beginning with the third paragraph.  The first sentence is, 
"Authors MUST set the aria-valuemin, aria-valuemax, and aria-valuenow 
attributes.":
https://rawgit.com/w3c/aria/ACTION-1493/aria/aria.html#slider

In addition, the characteristics table for the slider role has been 
modified.  Its "Implicit Value for Role" entry now includes 
aria-valuemin, aria-valuemax, and aria-valuenow.

Identical text has been added to the spinbutton and scrollbar roles:
https://rawgit.com/w3c/aria/ACTION-1493/aria/aria.html#scrollbar
https://rawgit.com/w3c/aria/ACTION-1493/aria/aria.html#spinbutton

Action links:
ACTION-1493: https://www.w3.org/WAI/PF/Group/track/actions/1493
ACTION-1606:  https://www.w3.org/WAI/PF/Group/track/actions/1606

Thanks.

-- 
;;;;joseph.

'Array(16).join("wat" - 1) + " Batman!"'
            - G. Bernhardt -

Received on Monday, 29 June 2015 14:29:12 UTC