*Contact emails* [email protected] *Specification* https://www.w3.org/TR/SVG2/struct.html#UseElement
*Summary* Align the Blink implementation with the SVG2 specification for matching CSS rules in <use> element trees. Match selectors against the <use> instantiation elements instead of the originating element subtree. This means selectors will no longer match ancestor and sibling elements outside the cloned subtree. More importantly, state selectors like :hover will now start matching in <use> instances. *Blink component* Blink>SVG <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ESVG%22> *Web Feature ID* Missing feature *Motivation* CSS selectors match against the wrong tree for <use> instantiations, which means selectors do not match correctly for structural relationships and user interaction state (see :hover issue that will be fixed shipping this feature: https://crbug.com/40663285) *Initial public proposal* *No information provided* *TAG review* *No information provided* *TAG review status* Not applicable *Risks* *Interoperability and Compatibility* Firefox has shipped the SVG2 behavior for years. Bug for WebKit: https://bugs.webkit.org/show_bug.cgi?id=249080 *Gecko*: Shipped/Shipping ( https://bugzilla.mozilla.org/show_bug.cgi?id=265894#c190) Shipped in Firefox 56 *WebKit*: No signal ( https://github.com/WebKit/standards-positions/issues/571) *Web developers*: Positive 44 votes on the crbug issue, and additional 5 votes on the :hover bug https://crbug.com/40663285 *Other signals*: *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? *No information provided* *Debuggability* *No information provided* *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/svg/linking/reftests/use-descendant-combinator-003.html https://wpt.fyi/svg/struct/reftests/use-inheritance-001.svg https://wpt.fyi/svg/struct/reftests/use-inheritance-nth-child-of.svg https://wpt.fyi/svg/struct/reftests/use-inheritance-nth-last-child-of.svg https://wpt.fyi/svg/styling/use-element-attr-selector-transition.tentative.html https://wpt.fyi/svg/styling/use-element-id-selector-transition.tentative.html *Flag name on about://flags* #enable-experimental-web-platform-features *Finch feature name* Svg2Cascade *Rollout plan* Will ship enabled for all users *Requires code in //chrome?* False *Tracking bug* https://crbug.com/40550039 *Estimated milestones* Shipping on desktop 144 Shipping on Android 144 Shipping on WebView 144 *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). *No information provided* *Link to entry on the Chrome Platform Status* https://chromestatus.com/feature/5134266027606016?gate=6607474169872384 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- Rune Lillesveen -- 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/CACuPfeQQp_NW%3DnoTwk2jpcjGzMb6wFyqj4KGm%3DqpMVyAM767tg%40mail.gmail.com.
