stylo: support all overflow values
overflow:clip doesn't exist, it's just called clip internally. Renamed, and added the other missing values.
I also removed the overflow newtype -- no need for extra code bloat, and it's not protecting us from much.
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In Gecko, we use double pointers to nsBorderColors to store -moz-border-*-colors.
We can simplify the implementation of computed value in Servo by using Option<Vec>.
As to passing computed values from Servo to Gecko, we might need to use some
binding functions (pre-added in the same Gecko bug, see Bug 1348173).
Note that we added -moz-border-*-colors as sub_properties of the 'border'
shorthand, so we can make the 'border' shorthand reset -moz-border-*-colors
(See Gecko Bug 482692). However, since they are Gecko only non-standard properties,
we should skip these sub_properties while doing unit testing in Servo. The test part
should be convered by Stylo/Gecko already.
A bit refactoring of replacing all ["top", "right", "bottom", "left"] with PHYSICAL_SIDES
is included in this patch, since we've already had PHYSICAL_SIDES for a while.
Introduce intermediate rgba
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Add calc method for CalcLengthOrPercentage
* Add calc method to calculate formula value with parent size
* Add unit test case
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Please see this issue: https://github.com/servo/servo/issues/15986
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This macro will be used for implementation of intermediate type shadows
as well. In the case of intermediate types transparent_color will be
IntermediateRGB::transparent().
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.
* Add to_computed method to calculate `calc()` value with parent size,
if parent container size is `None`, the result will be `None`.
* Add from_option method for `MaybeAuto`, to construct from
`Option<Au>`.
* Update some test case.
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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