css_ast/types/
spread_shadow.rs

1use super::prelude::*;
2use crate::{Color, Length, NonNegative, NoneOr};
3
4/// <https://drafts.csswg.org/css-borders-4/#typedef-spread-shadow>
5///
6/// ```text,ignore
7/// <spread-shadow> = <'box-shadow-color'>? && [ [ none | <length>{2} ] [ <'box-shadow-blur'> <'box-shadow-spread'>? ]? ] && <'box-shadow-position'>?
8/// ```
9#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
10#[parse(all_must_occur)]
11#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
12#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit)]
13#[derive(csskit_derives::NodeWithMetadata)]
14pub struct SpreadShadow<'a> {
15	pub color: Option<Color<'a>>,
16	pub offset: NoneOr<(Length, Length)>,
17	pub blur: Option<NonNegative<Length>>,
18	pub spread: Option<Length>,
19	pub position: Option<ShadowPosition>,
20}
21
22/// The position of a shadow: `inset` or `outset`.
23#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
24#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
25#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(skip))]
26#[derive(csskit_derives::NodeWithMetadata)]
27pub enum ShadowPosition {
28	#[atom(CssAtomSet::Inset)]
29	Inset(T![Ident]),
30	#[atom(CssAtomSet::Outset)]
31	Outset(T![Ident]),
32}
33
34#[cfg(test)]
35mod tests {
36	use super::*;
37	use crate::CssAtomSet;
38	use css_parse::{assert_parse, assert_parse_error, assert_peek_false};
39
40	#[test]
41	fn size_test() {
42		assert_eq!(std::mem::size_of::<SpreadShadow>(), 104);
43	}
44
45	#[test]
46	fn test_offset_none() {
47		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "none");
48		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "none 5px");
49		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "none 5px 3px");
50	}
51
52	#[test]
53	fn test_lengths() {
54		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "0 0");
55		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "0 0 0");
56		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "0 0 0 0");
57		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px");
58		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px 5px");
59		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px 5px 3px");
60		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "red 10px 20px");
61		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px inset");
62		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px outset");
63		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px 5px inset");
64		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px 5px 3px inset");
65		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "red 10px 20px inset");
66		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "0 0 0 .2rem rgba(0,123,255,.25)");
67		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "0 1px 1px rgba(0,0,0,.075)inset");
68	}
69
70	#[test]
71	fn test_leading_position() {
72		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "inset 10px 20px");
73		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "inset 0 1px 1px rgba(0,0,0,.075)");
74		assert_parse!(CssAtomSet::ATOMS, SpreadShadow, "outset 10px 20px");
75	}
76
77	#[test]
78	fn test_errors() {
79		assert_peek_false!(CssAtomSet::ATOMS, SpreadShadow, "");
80		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "10px");
81		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "red");
82		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "inset");
83		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "outset");
84		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px -5px");
85		assert_parse_error!(CssAtomSet::ATOMS, SpreadShadow, "10px 20px 5px 3px 7px");
86	}
87}
css_ast/types/spread_shadow.rs

css_ast/types/
spread_shadow.rs
