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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
//! Computed values for properties related to animations and transitions
use crate::values::computed::{Context, LengthPercentage, ToComputedValue};
use crate::values::generics::animation as generics;
use crate::values::specified::animation as specified;
use std::fmt::{self, Write};
use style_traits::{CssWriter, ToCss};
pub use crate::values::specified::animation::{
AnimationComposition, AnimationDirection, AnimationFillMode, AnimationName, AnimationPlayState,
ScrollAxis, ScrollTimelineName, TransitionBehavior, TransitionProperty,
};
/// A computed value for the `animation-iteration-count` property.
#[derive(Clone, Copy, Debug, MallocSizeOf, PartialEq, ToResolvedValue, ToShmem)]
#[repr(C)]
pub struct AnimationIterationCount(pub f32);
impl ToComputedValue for specified::AnimationIterationCount {
type ComputedValue = AnimationIterationCount;
#[inline]
fn to_computed_value(&self, context: &Context) -> Self::ComputedValue {
AnimationIterationCount(match *self {
specified::AnimationIterationCount::Number(n) => n.to_computed_value(context).0,
specified::AnimationIterationCount::Infinite => f32::INFINITY,
})
}
#[inline]
fn from_computed_value(computed: &Self::ComputedValue) -> Self {
use crate::values::specified::NonNegativeNumber;
if computed.0.is_infinite() {
specified::AnimationIterationCount::Infinite
} else {
specified::AnimationIterationCount::Number(NonNegativeNumber::new(computed.0))
}
}
}
impl AnimationIterationCount {
/// Returns the value `1.0`.
#[inline]
pub fn one() -> Self {
Self(1.0)
}
}
impl ToCss for AnimationIterationCount {
fn to_css<W>(&self, dest: &mut CssWriter<W>) -> fmt::Result
where
W: Write,
{
if self.0.is_infinite() {
dest.write_str("infinite")
} else {
self.0.to_css(dest)
}
}
}
/// A computed value for the `animation-timeline` property.
pub type AnimationTimeline = generics::GenericAnimationTimeline<LengthPercentage>;
/// A computed value for the `view-timeline-inset` property.
pub type ViewTimelineInset = generics::GenericViewTimelineInset<LengthPercentage>;
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