We will introduce various new animation_value_type in subsequent patches,
so we should just check 'discrete' type for properties that we can't compute
distance.
We need to store color values that each components exceeds its normal range
(i.e. [0, 1]) during animation operations (e.g. interpolation). We clamp it
right before we insert animated values into the cascade.
Make clip property animatable.
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All elements end up with AFFECTED_BY_STATE right now, presumably due to the UA
sheet, and some non-TS pseudo-classes we've added, which means that we currently
never insert anything into the cache.
MozReview-Commit-ID: 5IU4qrjeJFy
style: Refactor overflow fixup to account for overflow: clip.
This is the missing piece to make the remaining contain tests not assert on
Gecko.
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Reset longhands of border-image to their initial value while parsing border shorthand
To do so, we need to declare the border-image longhands as part of border
shorthand and always reset them.
Spec link: https://drafts.csswg.org/css-backgrounds-3/#the-border-shorthands
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switch gecko_bindings over to the gecko_debug feature [DO NOT MERGE]
...so that they use the correct Gecko structs regardless of whether Rust
code is being compiled with debug assertions or not.
This is the second part of the Servo-side changes for https://bugzilla.mozilla.org/show_bug.cgi?id=1357556
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stylo: Add glue for contain property
In gecko, `size` and `content` values aren't implemented yet. So I had to disable these parts with mako. We will need to update the property and the glue once these are implemented in gecko.
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To do so, we need to declare the border-image longhands as part of border
shorthand and always reset them. This could fix couple stylo test failures.
See Gecko Bug 1357350 for the test update patches.
Spec link: https://drafts.csswg.org/css-backgrounds-3/#the-border-shorthands
Note that two unit tests have been fixed as well:
1. border_should_serialize_correctly
To verify the correctness of serialization of 'border' shorthand, we need
to reset 'border-image' as well.
2. same_longhands_should_serialize_correctly
Due to the same reason as above, since the 'border-image' is not reset,
the test expectation should be fixed.
stylo: Bug 1332633 - Implement ComputeDistance trait.
These patches implement ComputeDistance trait, so we can use it for SMIL animation and for testing test_transitions_per_property.html, which uses nsDOMWindowUtils::ComputeAnimationDistance() to get the the distance between two AnimationValues.
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Introduce ComputeDistance trait, which implement compute_distance and
compute_squared_distance.
For vector, compute_squared_distance is necessary because we use Euclidean
distance as the distance between two values. The easier way to implement
compute_squared_distance is to square the result from compute_distance, but
for some property values, they may have many components, e.g. (v1, v2, v3).
If we just square the result from compute_distance, the computation is
(sqrt(v1^2 + v2^2 + v3^2))^2. There are two redundant operators:
"square-root" and then "square". In order to avoid this, we should
implement compute_squared_distance separately for these types.
MozReview-Commit-ID: LmmrUXYlDb6
If there are multiple prefixed/non-prefixed @keyframes with the same name;
* non-prefixed rule overrides earlier rules.
* prefixed rule overrides earlier prefixed rules.
This improves cache locality and reduces allocations during parsing.
Note that this reverses the iteration order within a sequence of simple selectors,
but that shouldn't matter.
