1175164 - Do not expose MathML semantics element in the accessibility tree

Status: RESOLVED FIXED

(Core :: Disability Access APIs, defect)

Description

[Joanmarie Diggs]

Attachment: fraction.html

Steps to reproduce:
1. Open the attached test case in Firefox.
2. Use Accerciser to view the accessibility tree.

Expected result: There would be no objects with ROLE_UNKNOWN.

Actual result: Both of the examples with the semantics element have an accessible object with ROLE_UNKNOWN as the child of the ROLE_MATH element.

Comment 1

[Frédéric Wang Nélar]

Attachment: Patch

https://treeherder.mozilla.org/#/jobs?repo=try&revision=111ba9f517af

Comment 2

[alexander :surkov (:asurkov)]

summary of the discussion: neither semantics nor annotation elements have a presentation or provide a special value for assistive technology. If the browser reveals them via UI for all users then the assistive technology users are supposed to use on that UI.

Comment 3

[alexander :surkov (:asurkov)]

Comment on attachment 8623309 [details] [diff] [review]
Patch

Review of attachment 8623309 [details] [diff] [review]:
-----------------------------------------------------------------

::: accessible/base/Role.h
@@ +930,3 @@
>     * A MathML stacked (rows of numbers) element (mstack in MathML).
>     */
>    MATHML_STACK = 161,

that seems to be safe but would be really nicer to not have gaps in numbering (there's no much of items underneath of this one)

Comment 4

[alexander :surkov (:asurkov)]

and please change uuid of the IDL

Comment 5

[Frédéric Wang Nélar]

Attachment: Patch V2

Comment 6

[Frédéric Wang Nélar]

https://treeherder.mozilla.org/#/jobs?repo=try&revision=111ba9f517af

Comment 7

[Pulsebot]

https://hg.mozilla.org/integration/mozilla-inbound/rev/6d4e17e32e6b

Comment 8

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/6d4e17e32e6b