1499386 - Implement @supports selector() syntax.

Status: RESOLVED FIXED

(Core :: CSS Parsing and Computation, enhancement)

Description

[Emilio Cobos Álvarez (:emilio)]

See https://github.com/w3c/csswg-drafts/issues/3207.

Comment 1

[Emilio Cobos Álvarez (:emilio)]

Attachment: Implement @supports selector() syntax.

This implements the selector(<complex-selector>) syntax for @supports.

See https://github.com/w3c/csswg-drafts/issues/3207 for explainer and
discussion.

Probably would should wait for that to be sorted out to land this, or maybe we
should put it behind a pref to get the code landed and change our
implementation if the discussion there leads to a change.

Comment 2

[James Graham [:jgraham]]

FYI the general wpt rule is that tests for underspecced features should have .tentative. in the filename. ALthough of course the CSSWG may have a different opinion.

Comment 3

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/631545ef7925
Implement @supports selector() syntax. r=heycam

Comment 4

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Created web-platform-tests PR https://github.com/web-platform-tests/wpt/pull/13576 for changes under testing/web-platform/tests

Comment 5

[ExE Boss]

Attachment: MDN: Browser compatibility table update

Comment 6

[ExE Boss]

I’ve updated the MDN page at:
https://developer.mozilla.org/en-US/docs/Web/CSS/@supports#Function_syntax

Comment 7

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream web-platform-tests status checks passed, PR will merge once commit reaches central.

Comment 8

[Dorel Luca [:dluca]]

https://hg.mozilla.org/mozilla-central/rev/631545ef7925

Comment 9

[Web Platform Test Sync Bot [:wpt-sync] (Matrix: #interop:mozilla.org)]

Upstream PR merged

Comment 10

[Chris Mills [:cmills]]

I've added an entry for this in our experimental features pages. Exe_Boss has done the page and BCD update, so I think the docs are complete on this one. Nice work!