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Derive Animate for computed::Angle

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Anthony Ramine 2017-08-26 16:43:44 +02:00
parent b543b17cf0
commit 1ace6d4c7f
1 changed files with 6 additions and 19 deletions
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25
components/style/values/computed/angle.rs
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@ -12,8 +12,10 @@ use values::animated::{Animate, Procedure};
use values::distance::{ComputeSquaredDistance, SquaredDistance};
/// A computed angle.
#[animate(fallback = "Self::animate_fallback")]
#[cfg_attr(feature = "servo", derive(HeapSizeOf, Deserialize, Serialize))]
#[derive(Clone, Copy, Debug, HasViewportPercentage, PartialEq, PartialOrd, ToAnimatedZero)]
#[derive(Animate, Clone, Copy, Debug, HasViewportPercentage, PartialEq)]
#[derive(PartialOrd, ToAnimatedZero)]
pub enum Angle {
/// An angle with degree unit.
Degree(CSSFloat),
@ -62,26 +64,11 @@ impl Angle {
pub fn zero() -> Self {
Angle::Radian(0.0)
}
}
/// https://drafts.csswg.org/css-transitions/#animtype-number
impl Animate for Angle {
/// https://drafts.csswg.org/css-transitions/#animtype-number
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
match (self, other) {
(&Angle::Degree(ref this), &Angle::Degree(ref other)) => {
Ok(Angle::Degree(this.animate(other, procedure)?))
},
(&Angle::Gradian(ref this), &Angle::Gradian(ref other)) => {
Ok(Angle::Gradian(this.animate(other, procedure)?))
},
(&Angle::Turn(ref this), &Angle::Turn(ref other)) => {
Ok(Angle::Turn(this.animate(other, procedure)?))
},
_ => {
Ok(Angle::from_radians(self.radians().animate(&other.radians(), procedure)?))
},
}
fn animate_fallback(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
Ok(Angle::from_radians(self.radians().animate(&other.radians(), procedure)?))
}
}