Hi,
In bug 1519519 I plan to enable the min() / max() / clamp() CSS
functions by default.
Summary: These functions allow authors to do what their name says :-)
Bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1519519
Standard: https://drafts.csswg.org/css-values-4/#comp-func
Platform coverage: All
Preference: layout.css.comparison-functions.enabled
Devtools bug: N/A. I thought that devtools auto-completed "calc" (and
thus that these functions would be a reasonable thing to add), but
apparently they don't, so not much else to do.
Other browsers:
* Safari: Shipped since ages ago
(https://bugs.webkit.org/show_bug.cgi?id=167000)
* Chrome: Shipped since v79
(https://www.chromestatus.com/feature/5714277878988800)
web-platform-tests: There's a variety of tests in:
https://wpt.fyi/results/css/css-values?label=master&label=experimental&aligned&q=minmax%7Cclamp
Note that some of those tests are not up-to-date with the latest spec
and working group discussions regarding serialization / simplification.
Still I think our implementation is closer to the spec than other
browsers. Anyhow that testing issue is tracked in
https://github.com/web-platform-tests/wpt/issues/21599.
Also, not having enabled causes some confusing (but technically
correct!) behavior for developers[1][2], which is IMO worth addressing,
and also kinda likely to show up as compat bugs (specially on mobile
where env() is used the most).
Let me know if there's any concern with proceeding.
-- Emilio
[1]: https://twitter.com/vincentriemer/status/1213244088998383620
[2]: https://twitter.com/ecbos_/status/1213622047206711296
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