Hi,
In bug 1694141 I plan to unprefix :-moz-ui-valid and :-moz-ui-invalid
pseudo-classes. These are useful pseudo-classes to determine when to
show feedback to the user about a form control being invalid.
Standard: https://drafts.csswg.org/selectors/#user-pseudos
Platform coverage: all
Preference: None
Devtools bug: N/A
Other browsers: No signal from other vendors, though we've shipped this
functionality for quite a while and the CSS working group considers it
useful, see discussions:
* https://lists.w3.org/Archives/Public/www-style/2012Aug/0749.html
* https://lists.w3.org/Archives/Public/www-style/2015Sep/0111.html
I'm hoping that unprefixing it in Gecko will serve as a bit of a nag to
other browsers.
Chromium bug: https://bugs.chromium.org/p/chromium/issues/detail?id=1156069
WebKit bug: https://bugs.webkit.org/show_bug.cgi?id=222267
web-platform-tests: There's a test for :user-invalid in css/selectors. I
plan to add a test for :user-valid. There's
https://github.com/web-platform-tests/wpt/issues/9346 on file for adding
WPTs that test the user-interaction part of this.
Let me know if you have any objections about this change, but I think
having a prefixed pseudo-class for this is not a great state of affairs.
-- Emilio
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