There are new "non-manual" WPT accname tests that we now mostly pass,
which required a few tweeks in calculating role and name.
Also implemented accessible description computation, which is just a
small addition on top of accessible name, and passed respective wpt
tests.
References #18332.
According to the spec, such controls should use the native value as long
as they have "aria-label". The relevant spec section is 2D.
However, there is an open issue that claims this should always apply,
and all browsers and wpt test actually do that:
https://github.com/w3c/accname/issues/64.
Fixes#28848.
The accessible name computation spec has changed to explicitly mention
this case:
Step 2A. Hidden Not Referenced. If the current node is hidden and is:
- Not part of an aria-labelledby or aria-describedby traversal, where
the node directly referenced by that relation was hidden.
- Nor part of a native host language text alternative element (e.g.
label in HTML) or attribute traversal, where the root of that traversal
was hidden.
See https://w3c.github.io/accname/#computation-steps. Chromium, Firefox
and Safari all agree with the spec.
Fixes#29796.
When generating a selector, we tend to match by role and call various
roleUtils methods multiple times.
Apply the usual pattern for "nested operations counter" and aggressively
cache the results.
When element is not assigned to any slot in the shadow root, it is not
rendered and is considered hidden for ARIA in all browsers.
In Chromium/Firefox we use `Element.checkVisibility` that already
handles this, but in WebKit we have to check it manually.
Fixes#21487.
This introduces `role=button[name="Click me"][pressed]` attribute-style
role selector. It is only available under `env.PLAYWRIGHT_EXPERIMENTAL_FEATURES`.
Supported attributes:
- `role` is required, for example `role=button`;
- `name` is accessible name, supports matching operators and regular expressions:
`role=button[name=/Click(me)?/]`;
- `checked` boolean/mixed, for example `role=checkbox[checked=false]`;
- `selected` boolean, for example `role=option[selected]`;
- `expanded` boolean, for example `role=button[expanded=true]`;
- `disabled` boolean, for example `role=button[disabled]`;
- `level` number, for example `role=heading[level=3]`;
- `pressed` boolean/mixed, for example `role=button[pressed="mixed"]`;
- `includeHidden` - by default, only non-hidden elements are considered.
Passing `role=button[includeHidden]` matches hidden elements as well.
