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style: Percentage values of translate are serialized as percent for computed values.

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Basically, we rewrite the type of generics::transform::Translate and its
ToCss to match the spec. Besides, we always serialize Translate by servo,
so we could drop a lot of duplicated code.

Differential Revision: https://phabricator.services.mozilla.com/D11206
This commit is contained in:
Boris Chiou 2018-11-08 22:41:00 +00:00 • committed by Emilio Cobos Álvarez
parent d9453bc0ea
commit c6ead1dc0e
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GPG key ID: 056B727BB9C1027C
7 changed files with 127 additions and 34 deletions
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12
components/style/values/computed/length.rs
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@ -11,6 +11,7 @@ use crate::values::distance::{ComputeSquaredDistance, SquaredDistance};
use crate::values::generics::length::{
MaxLength as GenericMaxLength, MozLength as GenericMozLength,
};
use crate::values::generics::transform::IsZeroLength;
use crate::values::generics::NonNegative;
use crate::values::specified::length::ViewportPercentageLength;
use crate::values::specified::length::{AbsoluteLength, FontBaseSize, FontRelativeLength};
@ -496,6 +497,17 @@ impl ToComputedValue for specified::LengthOrPercentage {
}
}
impl IsZeroLength for LengthOrPercentage {
#[inline]
fn is_zero_length(&self) -> bool {
match *self {
LengthOrPercentage::Length(l) => l.0 == 0.0,
LengthOrPercentage::Percentage(p) => p.0 == 0.0,
LengthOrPercentage::Calc(c) => c.unclamped_length().0 == 0.0 && c.percentage() == 0.0,
}
}
}
#[allow(missing_docs)]
#[animate(fallback = "Self::animate_fallback")]
#[css(derive_debug)]