Currently, attempting to parse an at-rule that is out of place, such as
an @import rule after a regular style rule, will cause the parser state
to be set to Invalid. This will cause any following at-rule to be
rejected until we encounter a regular style rule, at which point we'll
go back to the Body state. There's nothing in the CSS specs about
needing to reject all following at-rules (or, as the comment above
Invalid says, ignoring the entire rest of the style sheet).
stylo: Implement ToCss for SpecifiedOperation::{InterpolateMatrix|AccumulateMatrix}.
DevTools may serialize an InterpolateMatrix or AccumulateMatrix by
KeyframeEffectReadOnly::GetProperties() (from Gecko side), so we have to implement both.
---
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix [Bug 1381386](https://bugzilla.mozilla.org/show_bug.cgi?id=1381386).
- [X] These changes do not require tests because only Chrome-Only API needs this, and the serialization of InterpolateMatrix and AccumulateMatrix are not in the spec.
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Implement ::first-line support in stylo
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Fixes Gecko bug 1324619.
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style: Remove now-unused empty Variables struct.
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The `Servo_GetEmptyVariables` FFI function no longer has any callers from Gecko, so we can remove it and the code that creates/frees that struct.
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stylo: Fix compute_squared_distance for AnimatedFilterList
We implement compute_distance for Angle to avoid returning Err(()) from it, and then rewrite compute_squared_distance of AnimatedFilterLIst to avoid using unwrap() and make it simpler.
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- [X] These changes fix [Bug 1384014](https://bugzilla.mozilla.org/show_bug.cgi?id=1384014).
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We already have a more-specific check further down in the file, which was added in the same revision.
I think this one was erroneous.
MozReview-Commit-ID: CnP0zCpBtnp
stylo: remove bogus optimization check in replace_rules() for visited styles.
We skipped updating the rule nodes for visited rules during animation-only restyle.
However, this causes isseus that visited style overrides animation styles on visited element.
So, it turns out that we should update the visited rules even during animation-only restyle.
Gecko bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1381235
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We skipped updating the rule nodes for visited rules during animation-only restyle.
However, this causes isseus that visited style overrides animation styles on visited element.
So, it turns out that we should update the visited rules even during animation-only restyle.
Gecko bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1381235
