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Introduce CSSPixelLength and update NonNegativeLength.

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First, we define computed::CSSPixelLength which contains a CSSFloat, a
pixel value, and then we replace computed::Length with CSSPixelLength.
Therefore, the |ComputedValue| of NoCalcLength, AbsoluteLength,
FontRelativeLength, ViewportPercentageLength, CharacterWidth, and
PhysicalLength is CSSPixelLength.

Besides, we drop NonNegativeAu, and replace computed::NonNegativeLength
with NonNegative<computed::Length>. (i.e. NonNegative<CSSPixelLength>)
This commit is contained in:
Boris Chiou 2017-09-13 14:26:51 +08:00
parent cad3aff508
commit a949e2a057
40 changed files with 502 additions and 406 deletions
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6
components/style/values/animated/mod.rs
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@ -19,7 +19,7 @@ use values::computed::ComputedUrl;
use values::computed::GreaterThanOrEqualToOneNumber as ComputedGreaterThanOrEqualToOneNumber;
use values::computed::MaxLength as ComputedMaxLength;
use values::computed::MozLength as ComputedMozLength;
use values::computed::NonNegativeAu;
use values::computed::NonNegativeLength as ComputedNonNegativeLength;
use values::computed::NonNegativeLengthOrPercentage as ComputedNonNegativeLengthOrPercentage;
use values::computed::NonNegativeNumber as ComputedNonNegativeNumber;
use values::computed::PositiveInteger as ComputedPositiveInteger;
@ -296,7 +296,7 @@ impl ToAnimatedValue for ComputedGreaterThanOrEqualToOneNumber {
}
}
impl ToAnimatedValue for NonNegativeAu {
impl ToAnimatedValue for ComputedNonNegativeLength {
type AnimatedValue = Self;
#[inline]
@ -306,7 +306,7 @@ impl ToAnimatedValue for NonNegativeAu {
#[inline]
fn from_animated_value(animated: Self::AnimatedValue) -> Self {
max(animated.0, Au(0)).into()
ComputedNonNegativeLength::new(animated.px().max(0.))
}
}