Re: Question about "Implicit value for Role"

It’s about authoring convenience. For example, role=alert has an implicit value of “assertive” so the author just needs to write:

    role="alert"

Not:

    role="alert" aria-live="assertive"

We document the "implicit values for roles," otherwise the default value would be the default for the attribute, which is "off" for aria-live.



> On Mar 23, 2015, at 4:40 PM, Shane McCarron <shane@aptest.com> wrote:
> 
> Actually, no.  I don't even know what "Implicit value for Role" means really.  I can guess, but I would have assumed it was only relevant in a host language context.
> 
>> On Mon, Mar 23, 2015 at 3:47 PM, Matthew King <mattking@us.ibm.com> wrote:
>> Can you provide an example?
>> 
>> Matt King
>> IBM Senior Technical Staff Member
>> I/T Chief Accessibility Strategist
>> IBM BT/CIO - Global Workforce and Web Process Enablement 
>> Phone: (503) 578-2329, Tie line: 731-7398 
>> mattking@us.ibm.com
>> 
>> 
>> 
>> From:        Shane McCarron <shane@aptest.com>
>> To:        "W3C WAI Protocols & Formats" <public-pfwg@w3.org>, 
>> Date:        03/22/2015 05:24 PM
>> Subject:        Question about "Implicit value for Role"
>> Sent by:        ahby@aptest.com
>> 
>> 
>> 
>> If there is data in the value for this field for a given role (e.g., "select") and another role references that role as a superclass, should the new "child" role inherit those implicit values automatically?
>> 
>> -- 
>> Shane McCarron
>> Managing Director, Applied Testing and Technology, Inc.
> 
> 
> 
> -- 
> Shane McCarron
> Managing Director, Applied Testing and Technology, Inc.