Re: ACTION-1490 Updated combobox branch based on Feb 4 ARIA caucus discussion

Thank you Matt. This is better. 

I am running these by Freedom Scientific. 

One observation is that you have added a reference to the ARIA authoring practices guide in a number of places. This is a non-normative spec. for which we have linked to and it can change. Would it not be better to put a more global reference to it in the ARIA specification?  I am sure there are other places where we could reference the ARIA authoring practices and do not. 

Rich

Rich Schwerdtfeger




> On Feb 4, 2016, at 6:11 PM, Matt King <a11ythinker@gmail.com> wrote:
> 
> Based on today's lively discussion, I have revised my proposal for action 1490[1], which  is in branch mck-action1490[2].
>  
> The revisions include:
> 1. Remove implicit value of aria-orientation for combobox.
> 2. Remove combobox note about XForms.
> 3. Change combobox aria-autocomplete authoring requirements to state that aria-autocomplete be set to either "both" if autocomplete is provided in the textbox or "list" if it is not.
> 4. Restored token values for aria-autocomplete and clarified their definitions.
>  
> As previously described, the objectives of action 1490 are:
> 1. Allow combobox to popup grid, tree, and dialog in addition to listbox.
> 2. Allow aria-controls instead of aria-owns so the pop-up is not a child of the single line text input. This enables screen readers to include a rendering of the pop-up outside of the text input in their reading view or buffer.
> 3. Remove ambiguities from the spec to improve understanding and simplify authoring.
> 4. Do it all without breaking any existing implementations.
>  
> Note: the changes included in action 1490 have little or no effect on browser implementations and require only minor adjustments in the logic of some screen readers to support the aria-controls relationship when processing the escape key.
>  
> The changes in the mck-action1490 branch (as compared to master) are:
> 1. Reworded the combobox definition.
> 2. Added normative statement saying the popup must be one of listbox, tree, grid, or dialog.
> 3. Added normative MUST statement requiring authors to associate the input with the pop-up.
> 4. Specified that authors SHOULD use aria-controls but MAY use aria-owns to specify the relationship between the input and the popup.
> 5. Added normative author MUST statement requiring correct use of aria-expanded.
> 6. Reworded and simplify the focus management language.
> 7. Eliminated confusing language about aria-autocomplete and specified that authors SHOULD use either "both" if the text input provides suggestions or "list" if it does not.
> 8. Updated the example code to match the new authoring requirements.
> 9. Added a reference to the APG.
> 10. Changed the superclass to input.
> 11. Remove the required owned elements.
> 12. Clarified the value definitions for aria-autocomplete.
>  
> [1] Action 1490: https://www.w3.org/WAI/aria/track/actions/1490 <https://www.w3.org/WAI/aria/track/actions/1490>
>  
> [2] mck-action1490 branch: http://rawgit.com/w3c/aria/mck-action1490/aria/aria.html <http://rawgit.com/w3c/aria/mck-action1490/aria/aria.html>