style/values/animated/
font.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5//! Animation implementation for various font-related types.
6
7use super::{Animate, Procedure, ToAnimatedZero};
8use crate::values::computed::font::FontVariationSettings;
9use crate::values::distance::{ComputeSquaredDistance, SquaredDistance};
10
11/// <https://drafts.csswg.org/css-fonts-4/#font-variation-settings-def>
12///
13/// Note that the ComputedValue implementation will already have sorted and de-dup'd
14/// the lists of settings, so we can just iterate over the two lists together and
15/// animate their individual values.
16impl Animate for FontVariationSettings {
17    #[inline]
18    fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
19        let result: Box<[_]> =
20            super::lists::by_computed_value::animate(&self.0, &other.0, procedure)?;
21        Ok(Self(result))
22    }
23}
24
25impl ComputeSquaredDistance for FontVariationSettings {
26    #[inline]
27    fn compute_squared_distance(&self, other: &Self) -> Result<SquaredDistance, ()> {
28        super::lists::by_computed_value::squared_distance(&self.0, &other.0)
29    }
30}
31
32impl ToAnimatedZero for FontVariationSettings {
33    #[inline]
34    fn to_animated_zero(&self) -> Result<Self, ()> {
35        Err(())
36    }
37}
style/values/animated/font.rs

style/values/animated/
font.rs
