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[Access Module] rewrites accepted save for 1 question

From: Gregory J. Rosmaita <oedipus@hicom.net>
Date: Wed, 14 May 2008 19:43:15 +0100
To: w3c-wai-ua@w3.org
Cc: wai-liaison@w3.org
Message-Id: <20080514183957.M68343@hicom.net>

aloha!

the XHTML2 working group received our proposed re-wording for the 
Access Module very warmly, and decided to incorporate it into what
will transition to the final Last Call draft for the Access Module,
with the following amendments:

[note: the paragraph and sentence pointers refer to the contents 
of this post -- in the interest of getting timely feedback on the
small lingering issue, i decided to post this and THEN edit the 
pertinent UAWG wiki pages]

point 1. Section 3.1.1. Paragraph 1, Sentence 3:

<QUOTE>
User agents <del>SHOULD</del> <ins>MUST</ins> provide mechanisms for 
overriding the author setting with user-specified settings in order to 
ensure that the act of moving content focus does not cause the user 
agent to take any further action, as required by UAAG 1.0, Checkpoint 
9.5. [1]
</QUOTE>

the XHTML2 WG felt very strongly that this "should" must be an RFC 
2119 "MUST" - http://www.rfc-editor.org/rfc/rfc2119.txt; furthermore
the XHTML2 WG requested that it be repeated in section 3.1.2. 
(Parenthetically, the XHTML2 WG was surprised that the UAWG came down 
on the side of "should" in section 3.1.2. wherever there had been a 
discussion over the normative terms "SHOULD" and "MUST")


point 2. there is no defined encapsulation of the concept of "sessions" 
as articulated in the re-wording for Section 3.1.2, Paragraph 4, 
Sentence 6

<QUOTE>
If a user chooses to change the key binding, the resultant user-defined 
remapping SHOULD persist across sessions.
</QUOTE>

the XHTML2 WG asked the UA WG to either provide a reference for 
the term "sessions" or a definition of the term.

thanks again to everyone who has put aside other burning issues to 
address the Access Module issues -- with the Access Module and 
XHTML Role Module moving toward REC status, access keying and ARIA
will provide a firm foundation for the enhanced accessibility 
envisioned by the ARIA Roadmap, which means measurable progress, 
which is always a good thing...

gregory.

--- BEGIN FINAL(?) PROPOSED RE-WORDING ---

3.1. The access element 
[http://www.w3.org/WAI/UA/wiki/AccessModule/AccessElement]

The access element assigns an accessibility mapping to elements within 
a document. Actuating the mapping results in the element gaining focus 
(either the document focus or an inspection focus, as determined by the 
user agent), and, if set by the author and permitted by the user's 
settings, in one or more other events being activated.

An access element must have either a targetrole or a targetid attribute 
specified. If neither a targetrole nor a targetid attribute are 
specified, the user agent MUST NOT define a mapping nor deliver any 
events. 


3.1.1. activate = ( yes | no* ) 
[http://www.w3.org/WAI/UA/wiki/AccessModule/ActivateAttribute]

The activate attribute indicates whether a target element should be 
activated or not once it obtains focus. The default value for this 
attribute is "no", indicating that the element will not be "activated". 
User agents <del>SHOULD</del> <ins>MUST</ins> provide mechanisms for 
overriding the author setting with user-specified settings in order to 
ensure that the act of moving content focus does not cause the user 
agent to take any further action, as required by UAAG 1.0, Checkpoint 
9.5. [1]

User agents MUST provide keyboard mechanisms for "activating" any event 
associated with the focused element (UAAG 1.0, Checkpoint 1.2) [2] and 
SHOULD make available the list of events associated with the element 
(UAAG 1.0, Checkpoint 9.6). [3]


3.1.2. key = Character 
[http://www.w3.org/WAI/UA/wiki/AccessModule/KeyMappingBinding]
[also: http://www.w3.org/WAI/UA/wiki/KeyMappingBinding/Talk]

This attribute assigns a key mapping to an access shortcut. An access key 
is a single character from the document character set. 

Triggering the access key defined in an access element moves focus from 
its current position to the next element in navigation order that has one 
of the referenced role or id values (consult Section 3.1.1, Activate for 
information on how the element may be activated). Note that it is 
possible to deliver alternate events via XMLEVENTS. 

The invocation of access keys depends on the implementation. For 
instance, on some systems one may have to press an "alt" or "cmd" key 
in addition to the access key. 

User agents MUST provide mechanisms for overriding the author setting 
with user-specified settings in order to ensure that the act of moving 
content focus does not cause the user agent to take any further action, 
as required by UAAG 1.0, Checkpoint 9.5. [1] The character assigned to 
a key, and its relationship to a role or id attribute SHOULD be treated 
as an author suggestion. User agents may override any key assignment 
(e.g., if an assignment interferes with the operation of the user 
interface of the user agent, if the key is not available on a device, 
if a key is used by the operating environment). User agents SHOULD also 
allow users to override author assigned keys with their own key 
assignments (UAAG 1.0 - Checkpoint 11.3). [4] If a user chooses to 
change the key binding, the resultant user-defined remapping SHOULD 
persist across sessions.  

If no key attribute is specified, the user agent SHOULD assign a key and 
alert the user to the key mapping and the resultant user agent assigned 
key SHOULD persist across sessions. 

The rendering of access keys depends on the user agent. We recommend that 
authors include the access key character in label text or wherever the 
access key is to apply. If the user agent can recognize that the 
currently mapped access key character appears in the label text of the 
element to which it is mapped, then the user agent may render the 
character in such a way as to emphasize its role as the access key and 
distinguish it from other characters (e.g., by underlining it). 

A conforming user agent SHOULD also provide a centralized view of the 
current access key assignments (UAAG 1.0 - Checkpoint 11.1, UAAG 1.0 - 
Checkpoint 11.2). [5] [6]

--- END PROPOSED RE-WORDING ---

References:

[1] User Agent Accessibility Guidelines (UAAG 1.0)
W3C Recommendation (17 December 2002).
editors: Gunderson, Jon; Hansen, Eric; Jacobs, Ian;
URI: http://www.w3.org/TR/UAAG10/

[2] UAAG 1.0, Checkpoint 9.5
http://www.w3.org/TR/UAAG10/guidelines.html#tech-configure-no-handlers

[3] UAAG 1.0, Checkpoint 1.2
www.w3.org/TR/UAAG10/guidelines.html#tech-device-independent-handlers

[4] UAAG 1.0, Checkpoint 9.6
http://www.w3.org/TR/UAAG10/guidelines.html#tech-query-handlers

[5] UAAG 1.0 - Checkpoint 11.3
http://www.w3.org/TR/UAAG10/guidelines.html#tech-configure-input

[6] UAAG 1.0 - Checkpoint 11.1
http://www.w3.org/TR/UAAG10/guidelines.html#tech-info-current-ua-config

[7] UAAG 1.0 - Checkpoint 11.2
www.w3.org/TR/UAAG10/guidelines.html#tech-info-current-author-config


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             Gregory J. Rosmaita, oedipus@hicom.net
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Received on Wednesday, 14 May 2008 18:43:51 GMT

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