809688 - accessible name and description have special mappings on mac

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect, P3)

Description

[alexander :surkov (:asurkov)]

See http://www.w3.org/WAI/PF/aria-implementation/#mapping_additional_nd:

aria-label and aria-labelledby:

Calculate accessible name as described in Name Computation and expose value as string AXDescription.

Note: AXDescription is recommended for accessible name values that are not exposed visually, such as @alt and @aria-label. Accessible name values that are exposed visually, as in the case of a button, should be exposed as string AXTitle. For example, with <input type="button" value="Feb" aria-label="February">, expose both AXTitle:"Feb" and AXDescription:"February

aria-describedby:

Use in calculating the accessible description as described in Name Computation and expose value as string AXHelp.

Comment 1

[alexander :surkov (:asurkov)]

aria-labelledby (similar to aria-label but not the same):

Use in calculating the accessible name as described in Name Computation and expose value as string AXDescription. 

Alternatively, expose the labeling relationship as element AXTitleUIElement. Note: If the labeling element is not exposed in the accessibility tree, using AXTitleUIElement is not appropriate, as there is no element to reference.

Comment 2

[alexander :surkov (:asurkov)]

btw, aria-labelledby doesn't seem clear, I asked for clarifications by email

Comment 3

[alexander :surkov (:asurkov)]

(In reply to alexander :surkov from comment #2)
> btw, aria-labelledby doesn't seem clear, I asked for clarifications by email

clarification was:

aria-labelledby: If aria-labelledby references a single element, expose the labeling relationship as element AXTitleUIElement. If aria-labelledby references multiple elements, or if the labeling element is invisible or otherwise not exposed in the accessibility tree, calculate the accessible name as described in Name Computation and expose the value as string AXDescription instead.

Comment 4

[Marco Zehe (:MarcoZ)]

Unassigning from Hub since he is no longer working on Mac a11y.

Comment 5

[Morgan Reschenberg [:morgan]]

:eeejay what work is left to do for this that wasn't covered in the describedBy stuff I did earlier? Having a hard time deciphering this bug's intent.

Comment 6

[Eitan Isaacson [:eeejay]]

I think your patch fixes this issue!