css_ast/units/
time.rs

1use super::prelude::*;
2
3/// <https://drafts.csswg.org/css-values/#time>
4///
5/// ```text,ignore
6/// <time> = <dimension-token>
7/// ```
8#[node]
9#[derive(
10	IntoCursor, ToSpan, SemanticEq, Parse, Peek, ToCursors, Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash,
11)]
12#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
13#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
14#[derive(csskit_derives::NodeWithMetadata)]
15#[metadata(node_kinds = Dimension, value_kinds = Time)]
16pub enum Time {
17	#[atom(CssAtomSet::Ms)]
18	Ms(T![Dimension]),
19	#[atom(CssAtomSet::S)]
20	S(T![Dimension]),
21}
22
23impl Time {
24	pub fn as_seconds(&self) -> f32 {
25		match self {
26			Self::Ms(f) => Into::<f32>::into(*f) / 1000.0,
27			Self::S(f) => (*f).into(),
28		}
29	}
30}
31
32impl From<Time> for f32 {
33	fn from(val: Time) -> Self {
34		match val {
35			Time::Ms(f) => f.into(),
36			Time::S(f) => f.into(),
37		}
38	}
39}
40
41impl ToNumberValue for Time {
42	fn to_number_value(&self) -> Option<f32> {
43		Some((*self).into())
44	}
45}
46
47impl ToNormalisedValue for Time {
48	fn to_normalised_value(&self) -> Option<f32> {
49		Some(self.as_seconds())
50	}
51}
52
53#[cfg(test)]
54mod tests {
55	use super::*;
56	use crate::CssAtomSet;
57	use css_parse::{assert_parse, assert_peek_false};
58
59	#[test]
60	fn test_writes() {
61		assert_parse!(CssAtomSet::ATOMS, Time, "0s");
62		assert_parse!(CssAtomSet::ATOMS, Time, "0ms");
63		assert_parse!(CssAtomSet::ATOMS, Time, "1s");
64		assert_parse!(CssAtomSet::ATOMS, Time, "100ms");
65	}
66
67	#[test]
68	fn test_errors() {
69		assert_peek_false!(CssAtomSet::ATOMS, Time, "0");
70		assert_peek_false!(CssAtomSet::ATOMS, Time, "1");
71		assert_peek_false!(CssAtomSet::ATOMS, Time, "foo");
72	}
73}
css_ast/units/time.rs

css_ast/units/
time.rs
