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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- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix Bug 1332633.
- [X] These changes do not require tests because we have test cases in Gecko. (If Servo wants to use this feature, we can add more tests in Servo in the future.)
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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.
debug_assertions is not a reliable guide to whether Gecko C++ code is
being compiled with debugging assertions, since we can now compile Gecko
with --enable-optimize --disable-debug --enable-rust-debug: Gecko will
be compiled without debugging assertions (and debugging struct layouts)
and Rust code will be compiled with debug_assertions. The struct
mismatches in the binding layer lead to startup crashes.
This feature is not presently used, but will be set by some Gecko-side
changes and then used by some Servo-side changes. These changes need to
be made first so that CI on both sides works correctly at all
intermediate stages along the way.
scriptlevel is a property that affects how font-size is inherited. If scriptlevel is
+1, for example, it will inherit as the script size multiplier times
the parent font. This does not affect cases where the font-size is
explicitly set.
However, this transformation is not allowed to reduce the size below
scriptminsize. If this inheritance will reduce it to below
scriptminsize, it will be set to scriptminsize or the parent size,
whichever is smaller (the parent size could be smaller than the min size
because it was explicitly specified).
Now, within a node that has inherited a font-size which was
crossing scriptminsize once the scriptlevel was applied, a negative
scriptlevel may be used to increase the size again.
This should work, however if we have already been capped by the
scriptminsize multiple times, this can lead to a jump in the size.
For example, if we have text of the form:
huge large medium small tiny reallytiny tiny small medium huge
which is represented by progressive nesting and scriptlevel values of
+1 till the center after which the scriptlevel is -1, the "tiny"s should
be the same size, as should be the "small"s and "medium"s, etc.
However, if scriptminsize kicked it at around "medium", then
medium/tiny/reallytiny will all be the same size (the min size).
A -1 scriptlevel change after this will increase the min size by the
multiplier, making the second tiny larger than medium.
Instead, we wish for the second "tiny" to still be capped by the script
level, and when we reach the second "large", it should be the same size
as the original one.
We do this by cascading two separate font sizes. The font size (mSize)
is the actual displayed font size. The unconstrained font size
(mScriptUnconstrainedSize) is the font size in the situation where
scriptminsize never applied.
We calculate the proposed inherited font size based on scriptlevel and
the parent unconstrained size, instead of using the parent font size.
This is stored in the node's unconstrained size and will also be stored
in the font size provided that it is above the min size.
All of this only applies when inheriting. When the font size is
manually set, scriptminsize does not apply, and both the real and
unconstrained size are set to the explicit value. However, if the font
size is manually set to an em or percent unit, the unconstrained size
will be set to the value of that unit computed against the parent
unconstrained size, whereas the font size will be set computing against
the parent font size.
MozReview-Commit-ID: 820BIWqno3L
Add `inline-axis` and `block-axis` aliases for `-moz-box-orient`.
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This issue is reported at https://bugzilla.mozilla.org/show_bug.cgi?id=1355005.
spec: https://developer.mozilla.org/en-US/docs/Web/CSS/box-orient
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