Rule idea: aria-widget-keyboard-focusable

[WilcoFiers]

Applicability

Any element with an explicit role that inherits from "widget", except if any of the following are true:

• The widget has the disabled state (aria-disabled or disabled); or
• The widget is hidden from the accessibility tree; or
• The element is visually hidden.

Expectation

Any of the following is true:

• check 1: The element is focusable
• Check 2: The element is a descendant of a (focusable element which has a role that is not null, presentation, or none).
• Check 3: The element is referenced with aria-controls from another element

Assumptions

This rule does assume the component isn't an alternative control, such as a date picker button, that is an alternative for entering the date in a form field.