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Re: Comment on XML 2 Events

From: Richard Schwerdtfeger <schwer@us.ibm.com>
Date: Sun, 25 Nov 2007 15:35:03 -0600
To: Roland Merrick <roland_merrick@uk.ibm.com>
Cc: Mark Birbeck <Mark.Birbeck@x-port.net>, public-xhtml2@w3.org, public-xhtml2-request@w3.org, www-html-editor@w3.org
Message-ID: <OFD5BF5445.37BC0788-ON8625739E.00760DBD-8625739E.00768902@us.ibm.com>

Roland,

I agree that this is much better than just having a <purpose> element and
it is consistent with XForms. Currently, platform accessiblity API on
Windows (IAccessible2) and Linux allow us to provide a descrpiption of the
handler which you would call <hint>. The label allows a short name for the
function. We could add that capability in the platform accessibility apis.

In ODF we provide short names and long descriptions (like hints) for all
drawing objects and image maps links. Where this is extremely valuable is
when a user, who is blind, needs to make a decision as to whether to
perform an action or not - such as a purchase. Role is a type applied to
objects and really does not apply to event handlers.

So, if this is a proposal I support it.

Rich


Rich Schwerdtfeger
Distinguished Engineer, SWG Accessibility Architect/Strategist
Chair, IBM Accessibility Architecture Review  Board
blog: http://www.ibm.com/developerworks/blogs/page/schwer


                                                                           
             Roland Merrick                                                
             <roland_merrick@u                                             
             k.ibm.com>                                                 To 
             Sent by:                  Mark Birbeck                        
             public-xhtml2-req         <Mark.Birbeck@x-port.net>, Richard  
             uest@w3.org               Schwerdtfeger/Austin/IBM@IBMUS      
                                                                        cc 
                                       public-xhtml2@w3.org,               
             11/14/2007 07:42          www-html-editor@w3.org              
             AM                                                    Subject 
                                       Re: Comment on XML 2 Events         
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           





Greetings, I do not seem to be able to find a version of the XML Events 2
specification that includes a <purpose> element. However, I believe that
the notion is a good one though I do not believe that it goes far enough.

XForms allows three pieces of information to be associated with an action,
each of which can be used in different circumstances. These are the
<label>, <hint> and <help> elements [1].

The latest version of the XML Events 2 spec is lacking in examples in the
Handlers section [2]. Something along the lines of the following is what I
have in mind:

<action id="doThis">
  <label>Do This</label>
  <hint>performing this action will delight you.</hint>
  ...
</action>

and to allow the same ability with a script handler. . .

<action id="doThat">
  <label>Do That</label>
  <hint>performing this action will delight you.</hint>.
  <script type="application/x-javascript">
   doactivate(event);
  </script>
</action>

[1] http://www.w3.org/TR/xforms/#ui-commonelems
[2]
http://www.w3.org/TR/2007/WD-xml-events-20070216/#s_handler_module_elements


Regards, Roland


                                                                           
 Mark Birbeck                                                              
 <mark.birbeck@x-port.net>                                                 
 Sent by:                                                                  
 public-xhtml2-request@w3.org                                           To 
                                                  Richard Schwerdtfeger    
                                                  <schwer@us.ibm.com>      
 11/11/2007 21:53                                                       cc 
                                                  public-xhtml2@w3.org,    
                                                  www-html-editor@w3.org   
                                                                   Subject 
                                                  Re: Comment on XML 2     
                                                  Events                   
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           
                                                                           






Hi Rich,

Yes, I just re-read your email, and realised what you were saying.
Sorry about that.

However, using an element in this way sounds just like the plain text
equivalent of @role, which therefore means it would probably have
wider applicability than just <action>. I wonder if we should look at
trying to generalise this.

Any thoughts on that?

Regards,

Mark


--
  Mark Birbeck, formsPlayer

  mark.birbeck@formsPlayer.com | +44 (0) 20 7689 9232
  http://www.formsPlayer.com | http://internet-apps.blogspot.com

  standards. innovation.

On 11 Nov 2007, at 21:46, Richard Schwerdtfeger wrote:

> Hi Mark,
>
> Not the same. purpose is just the description. When providing the
> information to an assistive technology we can enumerate the named
> actions.
>
> Rich
>
>
> Rich Schwerdtfeger
> Distinguished Engineer, SWG Accessibility Architect/Strategist
> Chair, IBM Accessibility Architecture Review Board
> blog: http://www.ibm.com/developerworks/blogs/page/schwer
> <graycol.gif>Mark Birbeck <mark.birbeck@x-port.net>
>
>
> Mark Birbeck <mark.birbeck@x-port.net>
> 11/11/2007 03:26 PM
>
> <ecblank.gif>
> To
> <ecblank.gif>
> Richard Schwerdtfeger/Austin/IBM@IBMUS
> <ecblank.gif>
> cc
> <ecblank.gif>
> public-xhtml2@w3.org, www-html-editor@w3.org
> <ecblank.gif>
> Subject
> <ecblank.gif>
> Re: Comment on XML 2 Events
> <ecblank.gif><ecblank.gif>
>
> Hi Rich,
>
> Are you sure it wasn't consciously dropped in favour of @role? It's
> the kind of thing we'd do. :)
>
> Regards,
>
> Mark
>
> --
>   Mark Birbeck, formsPlayer
>
>   mark.birbeck@formsPlayer.com | +44 (0) 20 7689 9232
>   http://www.formsPlayer.com | http://internet-apps.blogspot.com
>
>   standards. innovation.
>
> On 9 Nov 2007, at 20:32, Richard Schwerdtfeger wrote:
>
> > The <purpose> element was dropped from actions in the XML Events 2
> > specification. If you recall we had a purpose element as a child of
> > the old handler element which is now called <action>. We need
> > purpose to be a child of this.
> >
> > <purpose> would contain text describing the purpose of the action
> > which could be supported by a platform accessibility api to list
> > the actions that can beformed on a document object.
> >
> > I would request that this be added.
> >
> > Rich
> >
> > Rich Schwerdtfeger
> > Distinguished Engineer, SWG Accessibility Architect/Strategist
> > Chair, IBM Accessibility Architecture Review Board
> > blog: http://www.ibm.com/developerworks/blogs/page/schwer
> >
>
>
>










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Received on Sunday, 25 November 2007 21:35:09 GMT

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