Contact [email protected] ExplainerNone
Specification https://html.spec.whatwg.org/multipage/custom-elements.html#custom-state-pseudo-class Summary This is the new syntax for the CSS custom state feature for custom elements. The old syntax, :--foo, is being deprecated and removed. This new syntax, :state(foo), is shipping in WebKit. Deprecation for old syntax: https://groups.google.com/a/chromium.org/g/blink-dev/c/JvpHoUfhJYE Spec for new syntax: https://github.com/whatwg/html/pull/8467 Blink componentBlink>HTML>CustomElements <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EHTML%3ECustomElements> TAG reviewNone TAG review statusNot applicable Risks Interoperability and Compatibility The new syntax will not have any interop or compat risks. WebKit has enabled the new syntax by default. I will implement and ship the new syntax alongside the old syntax so that developers can have access to both at the same time on stable and migrate to the new syntax. *Gecko*: No signal (https://bugzilla.mozilla.org/show_bug.cgi?id=1588763) I believe this is being implemented in gecko by Keith. *WebKit*: Shipped/Shipping (https://github.com/WebKit/WebKit/pull/22223) *Web developers*: No signals *Other signals*: Ergonomics This will be used in tandem with custom elements. This API will not make it hard for chrome to maintain good performance. Activation Developers will be able to take advantage of this feature immediately. Documentation and outreach could be useful for the deprecation of the old syntax and migration to the new syntax. Security There are no security/privacy risks for this CSS feature. WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? None Debuggability Styles applied by the custom state pseudo classes will appear in the styles sidebar of DevTools. 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 https://wpt.fyi/results/custom-elements/state?label=experimental&label=master&aligned Flag name on chrome://flagsCustomStatePseudoRename Finch feature nameCustomStatePseudoRename Requires code in //chrome?False Estimated milestones DevTrial on desktop 122 DevTrial on Android 122 Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (e.g. links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (e.g., changing to naming or structure of the API in a non-backward-compatible way). None Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5586433790443520 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 on the web visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAK6btwJzbjvYUjj55%2BReonmSUKMONT5zsH3MX8Unvq3ED%2B6Qaw%40mail.gmail.com.
