also new tests will be loaded soon at http://wpt.fyi/css/css-pseudo/events-on-after-before-marker.tentative.html including the nested case
On Thursday, February 26, 2026 at 4:49:03 PM UTC+1 Daniil Sakhapov wrote: > Here is an updated doc for my view on the CSSPseudoElement - > https://github.com/danielsakhapov/CSSPseudoElementDoc. > The core implementation is most likely won't be changed in the future, but > rather be a solid base for extending the functionality of the interface > with additional features. > > On Sunday, February 22, 2026 at 5:54:02 PM UTC+1 Mike Taylor wrote: > >> On 2/20/26 10:02 a.m., Mike Taylor wrote: >> >> >> On 2/20/26 7:37 a.m., Daniil Sakhapov wrote: >> >> *Contact emails* >> [email protected] >> >> *Specification* >> https://www.w3.org/TR/css-pseudo-4/#CSSPseudoElement-interface >> >> https://www.w3.org/TR/css-pseudo-4/#issue-22d457b7 suggests the >> interface may evolve. How big is the risk of us shipping now, and having to >> chan >> >> I don't know where the second half of my sentence went - but it should >> read ", and having to change the implementation later?" >> >> >> >> *Summary* >> CSSPseudoElement interface is a way to represent a pseudo-element in JS. >> >> CSSPseudoElement is returned from Element.pseudo(type), where `type` is >> currently: ::after, ::before, ::marker. >> CSSPseudoElement is a proxy object that represents a pseudo-element, so, >> unlike a pseudo-element, CSSPseudoElement always exists. >> CSSPseudoElement has the following attributes/methods: >> - The type attribute is a string representing the type of the >> pseudo-element. >> - The element attribute is the ultimate originating element of the >> pseudo-element. >> - The parent attribute is the originating element of the pseudo-element >> (Either Element of CSSPseudoElement for nested pseudo-elements). >> - The pseudo(type) method to retrieve nested pseudo-elements. >> >> *Blink component* >> Blink>CSS >> <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22> >> >> *Risks* >> *Gecko*: No signal ( >> https://github.com/mozilla/standards-positions/issues/1345) >> >> *WebKit*: No signal ( >> https://github.com/WebKit/standards-positions/issues/607) >> >> *Web developers*: Positive >> >> *Will this feature be supported on all six Blink platforms (Windows, Mac, >> Linux, ChromeOS, Android, and Android WebView)?* >> Yes >> >> *Is this feature fully tested by web-platform-tests >> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?* >> Yes >> http://wpt.fyi/css/css-pseudo/events-on-pseudo-element.tentative.html >> http://wpt.fyi/css/css-pseudo/CSSPseudoElement-identity.html >> >> Can we expand testing a bit here? There's nothing covering ::after or >> ::marker (maybe redundant, but also trivial to add), or the case where we >> don't expect .element and .parent to be the same. >> >> *Tracking bug* >> https://issues.chromium.org/issues/40639103 >> >> *Estimated milestones* >> Shipping on desktop 147 >> Shipping on Android 147 >> Shipping on WebView 147 >> >> *Link to entry on the Chrome Platform Status* >> https://chromestatus.com/feature/5194399398756352?gate=6320299305598976 >> >> *Links to previous Intent discussions* >> Intent to Prototype: >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/686fbd23.2b0a0220.3a1521.1022.GAE%40google.com >> >> >> This intent message was generated by Chrome Platform Status >> <https://chromestatus.com/>. >> -- >> You received this message because you are subscribed to the Google Groups >> "blink-dev" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion visit >> https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAH3Z92-59h%2BdTDdy_8gXQ9zsgsEr%3DPvUs_tCBPUH1MidH9UPcA%40mail.gmail.com >> >> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAH3Z92-59h%2BdTDdy_8gXQ9zsgsEr%3DPvUs_tCBPUH1MidH9UPcA%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/2a587957-6edd-4458-96ce-ce28cb42e3ddn%40chromium.org.
