RFR: 8361283: [Accessibility, macOS, VoiceOver] VoiceOver announced Tab items of JTabbedPane as RadioButton on macOS [v2]

[Abhishek Kumar]

On Mon, 7 Jul 2025 07:34:52 GMT, Artem Semenov <asemenov at openjdk.org> wrote:

>>> Check the [super accessibilityRoleDescription] and if it returns nil, return your implementation.
>> 
>> As I mentioned earlier in the description, `accessibility role description is fetched in accessibilityRoleDescription API in CommonComponentAccessiblity.m file, the sub-role passed as a parameter is nil, returned value is RadioButton`, [super accessibilityRoleDescription] will not return `nil`.
>> 
>> Anyways, I don't see this method getting invoked in TabButtonAccessibility by a11y client.
>
> Try to debug and investigate why [TabbuttonAccessibility accessibilityRoleDescription] is not being called. If you have already attempted to override it with the changes you need.
> 
> The logic of creating tabs in TabGroupAccessibility indicates that such an override should work.

The accessible class created for a java role `pagetab` i.e. a tab component is `CommonComponentAccessibility`.
The parent for `pagetab` is `TabGroupAccessibility` and the object returned from `rowRolesMapForParent`  is `null` for `TabGroupAccessibility` in `getComponentAccessibilityClass` method. Since there is no entry in the `rolesMap` for the `pagetab` role, the returned class is `CommonComponentAccessibility`.
So, the `accessibilityRoleDescription` API is invoked from `CommonComponentAccessibility` and not from `TabButtonAccessibility`.

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PR Review Comment: https://git.openjdk.org/jdk/pull/26096#discussion_r2191726855