IMHO, this change is simple enough that a TAG review doesn't seem
worthwhile.
On 11/6/24 8:46 PM, 'Daniel Clark' via blink-dev wrote:
Should a TAG review be requested for this? It could also include the
planned work for ::column::scroll-marker.
-- Dan
*From:*Daniil Sakhapov <sakha...@chromium.org>
*Sent:* Wednesday, November 6, 2024 5:55 AM
*To:* blink-dev <blink-dev@chromium.org>
*Subject:* [EXTERNAL] [blink-dev] Intent to Ship: Nested pseudo
elements styling
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Explainer
Nested pseudo elements styling allows to style ::before::marker and
::after::marker pseudo elements and will be essential to style
::column::scroll-marker pseudo elements for the carousel project
(https://github.com/flackr/carousel/tree/main/fragmentation
<https://github.com/flackr/carousel/tree/main/fragmentation>).
Specification
https://www.w3.org/TR/css-pseudo-4/#marker-pseudo
<https://www.w3.org/TR/css-pseudo-4/#marker-pseudo>
Summary
Allows to style pseudo elements that are nested inside other pseudo
elements. So far, support is defined for: ::before::marker
::after::marker With ::column::scroll-marker being supported in the
future.
Blink component
Blink>CSS
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3ECSS>
TAG review
None
TAG review status
Not applicable
Risks
Interoperability and Compatibility
None
/Gecko/: No signal
(https://github.com/mozilla/standards-positions/issues/1109
<https://github.com/mozilla/standards-positions/issues/1109>)
/WebKit/: No signal
(https://github.com/WebKit/standards-positions/issues/425
<https://github.com/WebKit/standards-positions/issues/425>)
/Web developers/: No signals
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/css/css-pseudo/marker-font-variant-numeric-normal.html
<https://wpt.fyi/css/css-pseudo/marker-font-variant-numeric-normal.html>
::column::scroll-marker tests are in wpt_internal for now
Flag name on about://flags
CSSNestedPseudoElements
Requires code in //chrome?
False
Tracking bug
https://issues.chromium.org/issues/373478544
<https://issues.chromium.org/issues/373478544>
Estimated milestones
DevTrial on desktop
131
DevTrial on Android
131
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/5199947786616832?gate=5142809487867904
<https://chromestatus.com/feature/5199947786616832?gate=5142809487867904>
This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.
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