jquery/test
Michał Gołębiowski-Owczarek d153c375e6
Selector: Use jQuery :has if CSS.supports(selector(...)) non-compliant
jQuery has followed the following logic for selector handling for ages:
1. Modify the selector to adhere to scoping rules jQuery mandates.
2. Try `qSA` on the modified selector. If it succeeds, use the results.
3. If `qSA` threw an error, run the jQuery custom traversal instead.

It worked fine so far but now CSS has a concept of forgiving selector lists that
some selectors like `:is()` & `:has()` use. That means providing unrecognized
selectors as parameters to `:is()` & `:has()` no longer throws an error, it will
just return no results. That made browsers with native `:has()` support break
selectors using jQuery extensions inside, e.g. `:has(:contains("Item"))`.

Detecting support for selectors can also be done via:

```js
CSS.supports( "selector(SELECTOR_TO_BE_TESTED)" )
```
which returns a boolean. There was a recent spec change requiring this API to
always use non-forgiving parsing:
https://github.com/w3c/csswg-drafts/issues/7280#issuecomment-1143852187
However, no browsers have implemented this change so far.

To solve this, two changes are being made:
1. In browsers supports the new spec change to `CSS.supports( "selector()" )`,
   use it before trying `qSA`.
2. Otherwise, add `:has` to the buggy selectors list.

Fixes gh-5098
Closes gh-5107
Ref w3c/csswg-drafts#7676
2022-09-19 20:56:02 +02:00
..
data Tests: Exclude tests based on compilation flags, not API presence 2022-06-28 12:39:01 +02:00
integration Event: Fix delegated radio events when arrow keys are used 2015-10-18 13:06:37 -04:00
node_smoke_tests Build: Update jsdom; migrate a test with Symbol polyfill to an iframe test 2019-03-04 18:30:51 +01:00
promises_aplus_adapters Build: Update jsdom; migrate a test with Symbol polyfill to an iframe test 2019-03-04 18:30:51 +01:00
unit Selector: Use jQuery :has if CSS.supports(selector(...)) non-compliant 2022-09-19 20:56:02 +02:00
.eslintrc.json Tests: Exclude tests based on compilation flags, not API presence 2022-06-28 12:39:01 +02:00
delegatetest.html Tests: Change quotes according to style guidelines 2015-10-18 13:17:23 -04:00
hovertest.html Ref #13316: Sync all documents on full vs. minified source. Close gh-1147. 2013-02-07 15:16:28 -05:00
index.html Build: Restore the external directory 2021-03-24 23:36:25 +01:00
jquery.js Core: Drop support for Edge Legacy (i.e. non-Chromium Microsoft Edge) 2020-09-22 17:49:28 +02:00
karma.context.html Build: Use the US spelling of "favor" 2020-07-22 16:12:54 +02:00
karma.debug.html Tests: Fix the link to QUnit CSS file 2022-08-29 17:44:10 +02:00
localfile.html Manipulation: Make jQuery.htmlPrefilter an identity function 2020-03-16 21:49:29 +01:00
middleware-mockserver.js Attributes: Don't stringify attributes in the setter 2021-11-01 18:10:23 +01:00
networkerror.html Docs: Replace #NUMBER Trac issue references with trac-NUMBER 2022-01-04 16:27:18 +01:00
xhtml.php Added a way to run the test suite as an XHTML page. 2009-01-19 18:14:51 +00:00