Backport several style changes from Gecko (3)
<!-- Please describe your changes on the following line: -->
This continues https://github.com/servo/servo/pull/29772.
---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `___` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #___ (GitHub issue number if applicable)
<!-- Either: -->
- [X] There are tests for these changes OR
- [ ] These changes do not require tests because ___
<!-- Also, please make sure that "Allow edits from maintainers" checkbox is checked, so that we can help you if you get stuck somewhere along the way.-->
<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->
This patch adds the animation-timeline longhand property. For
shorthand, we will do that in the next patch.
This patch includes the aut-generated code in
devtools/shared/css/generated/properties-db.js, by `./mach devtools-css-db`.
Note:
1. we will use this property in Bug 1676791. For now, only make sure
we parse it and serialize it correctly.
2. The syntax of animation-timeline may be updated, based on the spec
issue: https://github.com/w3c/csswg-drafts/issues/6674.
However, it's not a big problem to update it later, so we still can
prototype this property based on the current version of spec.
Differential Revision: https://phabricator.services.mozilla.com/D126450
break-before/after: page|column seem harder because you need to deal
with nested breaks, I think, but this should be straight-forward.
Differential Revision: https://phabricator.services.mozilla.com/D121206
Add initial support for the color-scheme CSS property, allowing pages to
choose between light and dark system colors per-element, and such.
Things that are left to do so that this can be enabled by default:
* Dark system colors on Windows / Android / Standins.
* Dark Canvas/CanvasText/Link visited colors (which right now are set
via PreferenceSheet).
* Dark form controls in nsNativeBasicTheme.
* Processing the color-scheme meta tag to fill-in
Document::mColorSchemeBits.
But this seems like enough progress to be landable on its own.
Differential Revision: https://phabricator.services.mozilla.com/D120843
This changes font-family storage to reuse the rust types, removing a
bunch of code while at it. This allows us to, for example, use a single
static font family for -moz-bullet and clone it, rather than creating a
lot of expensive copies.
Differential Revision: https://phabricator.services.mozilla.com/D118011
Otherwise we assert due to the styles being different from the cached
ones, but it doesn't matter as these don't influence Gecko scrollbars.
Differential Revision: https://phabricator.services.mozilla.com/D117147
This results in lots of new WPT test passes.
There were also a couple of WPT tests that turned out to be broken;
tab-size-inline-001 and -002 had errors in their reference files such
that they'd never pass anywhere. So those are fixed here.
Depends on D117331
Differential Revision: https://phabricator.services.mozilla.com/D117332
As per https://drafts.csswg.org/css-will-change/#will-change.
> If any non-initial value of a property would cause the element to
> generate a containing block for absolutely positioned elements,
> specifying that property in will-change must cause the element to
> generate a containing block for absolutely positioned elements.
But in this case the transform property wouldn't apply to the element so
there's no reason to create a stacking-context.
Differential Revision: https://phabricator.services.mozilla.com/D114121
This property does nothing since bug 315209 got implemented.
Every single user that I checked was doing the same math by hand, so
hooray for good defaults :-)
Differential Revision: https://phabricator.services.mozilla.com/D112253
No behavior change, just cleanup. Actually seem this technically _adds_ some code even
though it's a cleanup, but that's mostly because of the wrapping of the
derive list. The resulting code is simpler (more in-line with our usual
things, so I think it's an improvement).
Differential Revision: https://phabricator.services.mozilla.com/D111551
This parsing is hidden behind the pref layout.css.page-size.enabled.
It isn't ideal that we parse this as a property, but we can't treat it as a
descriptor because of compatibility issues with other browsers. There are also
outstanding spec issues related to how descriptors like page-size are cascaded,
and whether the !important specifier is valid or not.
Differential Revision: https://phabricator.services.mozilla.com/D103958
I also update the wpt becasue it seems the original one lets <ratio>
support the addition. However, the spec says "Addition of <ratio>s is not
possible".
Differential Revision: https://phabricator.services.mozilla.com/D106219
This doesn't use a full bitmap for every single rule type, as we only expect
that keyframe, page, and style rules will be checked.
Differential Revision: https://phabricator.services.mozilla.com/D104949
It's only used to disambiguate between the one-argument and the trait
version of Keyword::parse. Instead, just explicitly use the trait
version, so that we don't need to specify it.
Differential Revision: https://phabricator.services.mozilla.com/D104328
This allows supporting image-set(), etc, and simplifies the bullet frame
code significantly, too thanks to two changes:
* Instead of manually managing the image request, use the CSS image
loader, with the `REQUEST_REQUIRES_REFLOW` flag, to handle image
loads correctly. This didn't exist when this code was initially
implemented, but we can nicely use it now.
* Instead of re-implementing another WebRender command-builder thing,
we can just reuse the nsImageRenderer code.
Differential Revision: https://phabricator.services.mozilla.com/D100774
This renames the internal -moz-math-script-level property in order to
prepare for full math-depth support. Currently, the property is guarded
under a disabled-by-default flag, so there should be no observable
behavior change.
Differential Revision: https://phabricator.services.mozilla.com/D91285
This patch renames the internal -moz-math-display to math-style and
exposes it under the layout.css.math-style.enabled preference. The
initial value becomes "normal" but that does not affect the default
MathML behavior since the UA style sheet sets the math-style property
explicitly on <math> tags. WPT tests are updated to use the syntax
approved by the CSSWG.
Intent to prototype: https://groups.google.com/forum/#!msg/mozilla.dev.platform/1hQQ7ISudGo/_yLEckEeBQAJ
Differential Revision: https://phabricator.services.mozilla.com/D90731
-moz-inert CSS property reflects inert subtrees concept and can be used to implement HTML:dialog element and HTML:inert attribute
Differential Revision: https://phabricator.services.mozilla.com/D81701