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Re: Action: Keyboard trap

From: Simon Harper <simon.harper@manchester.ac.uk>
Date: Mon, 4 Aug 2008 10:44:24 +0100
Message-Id: <E4352148-3BA2-4FD6-B775-5DF1024866B3@manchester.ac.uk>
Cc: w3c-wai-ua@w3.org
To: Jan Richards <jan.richards@utoronto.ca>

Yes this is a very good point - let me clarify - I was thinking along  
the lines of the standard and non standard keys mentioned and that  
the documentation point is covered in principle 5 (I think).

So, do you not think we could modify this to say:

4.1.3 No Keyboard Trap: If focus can be moved to a component with the  
keyboard, then focus can be moved away from that component using the  
same key combinations which enabled the focus or by follow  
appropriate operating system conventions. In both cases conformance  
to Principle 5.3. is mandatory.

Is there not a better way to say this without the UI/Content  
distinction?  Also, do you think the the AA level suggested means  
that developers will have more problems implementing this aspect?




>>> A: No Keyboard Trap (Minimum): The user agent prevents keyboard  
>>> traps as follows:
>>> (a) in the UI: if keyboard focus can be moved to a component  
>>> using the keyboard, then focus can be moved away from that  
>>> component using standard sequential keyboard commands (e.g., TAB  
>>> key)
>>> (b) in the rendered content: provides a documented direct  
>>> keyboard command that will always restore keyboard focus to a  
>>> known location (e.g., the address bar).
>>>
>>> AA: No Keyboard Trap (Enhanced): In the rendered content, if  
>>> keyboard focus can be moved to a component using the keyboard,  
>>> then focus can be moved away from that component using standard  
>>> sequential keyboard commands (e.g., TAB key).
>>>



Cheers
Si.

====
Simon Harper
University of Manchester (UK)

Human Centred Web Lab: http://hcw.cs.manchester.ac.uk
My Site: http://hcw.cs.manchester.ac.uk/people/harper/
My Diary (iCal): http://hcw.cs.manchester.ac.uk/diaries/SimonHarper.ics


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Received on Monday, 4 August 2008 09:44:54 GMT

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