tree 594a5e729f95bcaa2ea8d8be0f0a38c0d8d1ac51
parent 2d1ad05908ee5447fdfa70eed9757273aa5da367
author Boris Chiou <boris.chiou@gmail.com> 1677886123 +0000
committer moz-wptsync-bot <wptsync@mozilla.com> 1678013590 +0000

Support offset-position in the style system.

Also, we make it animatable but don't apply it to the motion transform and
don't run it on the compositor for now (so it works for getComputedStyle but
doesn't have rendering result).

Per spec: https://w3c.github.io/csswg-drafts/css-values/#calc-serialize,
we tweak the WPT to let calc() serialize the percentage first, and maintain
zero-valued terms, i.e. 0%. (We are doing the same thing as
offset-anchor, so it should be fine with other browsers.)

Besides, I tweak the serialization of shorthand a little bit so we match
the implementation of WebKit.

Differential Revision: https://phabricator.services.mozilla.com/D170972

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1818666
gecko-commit: 383cb19a14e3692452def628a643428c443e3de2
gecko-reviewers: emilio