css_ast/functions/
image_set_function.rs

1use super::prelude::*;
2use crate::{CalcableValue, Image, Resolution};
3
4/// <https://drafts.csswg.org/css-images-4/#funcdef-image-set>
5///
6/// ```text
7/// <image-set()> = image-set( <image-set-option># )
8/// <image-set-option> = [ <image> | <string> ] [ <resolution> || type(<string>) ]?
9/// ```
10#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
11#[cfg_attr(feature = "serde", derive(serde::Serialize))]
12#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(self))]
13#[derive(csskit_derives::NodeWithMetadata)]
14pub struct ImageSetFunction<'a> {
15	#[atom(CssAtomSet::ImageSet)]
16	pub name: T![Function],
17	pub params: CommaSeparated<'a, ImageSetParams<'a>>,
18	#[semantic_eq(skip)]
19	pub close: T![')'],
20}
21
22#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
23#[cfg_attr(feature = "serde", derive(serde::Serialize))]
24pub enum ImageSetParams<'a> {
25	Image(Image<'a>, Option<ResolutionOrType<'a>>),
26	String(T![String], Option<ResolutionOrType<'a>>),
27}
28
29#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
30#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
31pub enum ResolutionOrType<'a> {
32	Resolution(CalcableValue<'a, Resolution>),
33	Type(#[atom(CssAtomSet::Type)] T![Function], T![String], #[semantic_eq(skip)] T![')']),
34}
35
36#[cfg(test)]
37mod tests {
38	use super::*;
39	use crate::CssAtomSet;
40	use css_parse::assert_parse;
41
42	#[test]
43	fn size_test() {
44		assert_eq!(std::mem::size_of::<ImageSetFunction>(), 48);
45	}
46
47	#[test]
48	fn test_writes() {
49		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set('image.jpg'1x,'image.jpg'2x)");
50		assert_parse!(
51			CssAtomSet::ATOMS,
52			ImageSetFunction,
53			"image-set(url('1.avif')type('image/avif'),url('2.jpg')type('image/jpeg'))"
54		);
55		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set(url(foo))");
56		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set('a.jpg'calc(1x * 2))");
57		assert_parse!(CssAtomSet::ATOMS, ImageSetFunction, "image-set('a.jpg'var(--dpi))");
58	}
59}
css_ast/functions/image_set_function.rs

css_ast/functions/
image_set_function.rs
