css_ast/rules/
font_palette_values.rs

1use super::prelude::*;
2use crate::PaletteIdentifier;
3#[cfg(feature = "visitable")]
4use crate::visit::{NodeId, QueryableNode};
5use csskit_proc_macro::syntax;
6
7/// Represents the `@font-palette-values` at-rule, e.g. `@font-palette-values --cooler { base-palette: 2 }`.
8///
9/// ```md
10/// <font-palette-values-rule>
11///  │├─ "@font-palette-values" ─ <dashed-ident> ─ <block> ─┤│
12/// ```
13///
14/// <https://drafts.csswg.org/css-fonts/#at-ruledef-font-palette-values>
15#[node]
16#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
17#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
18#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit, queryable(skip))]
19#[cfg_attr(
20	feature = "css_feature_data",
21	derive(::csskit_derives::ToCSSFeature),
22	css_feature("css.at-rules.font-palette-values")
23)]
24#[derive(csskit_derives::NodeWithMetadata)]
25#[metadata(node_kinds = AtRule, used_at_rules = FontPaletteValues, property_kinds = Name)]
26pub struct FontPaletteValuesRule<'a> {
27	#[cfg_attr(feature = "visitable", visit(skip))]
28	#[atom(CssAtomSet::FontPaletteValues)]
29	pub name: T![AtKeyword],
30	pub prelude: PaletteIdentifier,
31	#[metadata(block)]
32	pub block: FontPaletteValuesRuleBlock<'a>,
33}
34
35#[cfg(feature = "visitable")]
36impl<'a> QueryableNode for FontPaletteValuesRule<'a> {
37	const NODE_ID: NodeId = NodeId::FontPaletteValuesRule;
38
39	fn get_property(&self, kind: PropertyKind) -> Option<Cursor> {
40		match kind {
41			PropertyKind::Name => Some(self.prelude.into()),
42			_ => None,
43		}
44	}
45}
46
47#[node]
48#[derive(Parse, Peek, ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
49#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
50#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit(children))]
51#[derive(csskit_derives::NodeWithMetadata)]
52pub struct FontPaletteValuesRuleBlock<'a>(DeclarationList<'a, FontPaletteValuesRuleStyleValue<'a>, CssMetadata>);
53
54/// The descriptors allowed inside a [`FontPaletteValuesRule`] block.
55#[node]
56#[derive(ToSpan, ToCursors, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
57#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
58#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit)]
59#[derive(csskit_derives::NodeWithMetadata)]
60pub enum FontPaletteValuesRuleStyleValue<'a> {
61	FontFamily(FontPaletteValuesFontFamilyValue<'a>),
62	BasePalette(BasePaletteValue<'a>),
63	OverrideColors(OverrideColorsValue<'a>),
64	Unknown(ComponentValues<'a>),
65}
66
67impl<'a> DeclarationValue<'a, CssMetadata> for FontPaletteValuesRuleStyleValue<'a> {
68	fn valid_declaration_name<I>(p: &Parser<'a, I>, c: Cursor) -> bool
69	where
70		I: Iterator<Item = Cursor> + Clone,
71	{
72		matches!(
73			p.to_atom::<CssAtomSet>(c),
74			CssAtomSet::FontFamily | CssAtomSet::BasePalette | CssAtomSet::OverrideColors
75		)
76	}
77
78	fn is_unknown(&self) -> bool {
79		matches!(self, Self::Unknown(_))
80	}
81
82	fn needs_computing(&self) -> bool {
83		matches!(self, Self::Unknown(_))
84	}
85
86	fn parse_declaration_value<I>(p: &mut Parser<'a, I>, c: Cursor) -> ParserResult<Self>
87	where
88		I: Iterator<Item = Cursor> + Clone,
89	{
90		Ok(match p.to_atom::<CssAtomSet>(c) {
91			CssAtomSet::FontFamily => Self::FontFamily(p.parse::<FontPaletteValuesFontFamilyValue<'a>>()?),
92			CssAtomSet::BasePalette => Self::BasePalette(p.parse::<BasePaletteValue<'a>>()?),
93			CssAtomSet::OverrideColors => Self::OverrideColors(p.parse::<OverrideColorsValue<'a>>()?),
94			_ => Self::Unknown(p.parse::<ComponentValues<'a>>()?),
95		})
96	}
97}
98
99/// ```text,ignore
100/// <family-name>#
101/// ```
102///
103/// <https://drafts.csswg.org/css-fonts/#descdef-font-palette-values-font-family>
104#[syntax(" <font-family-name># ")]
105#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
106#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
107#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit)]
108#[derive(csskit_derives::NodeWithMetadata)]
109pub struct FontPaletteValuesFontFamilyValue<'a>;
110
111/// ```text,ignore
112/// light | dark | <integer [0,∞]>
113/// ```
114///
115/// <https://drafts.csswg.org/css-fonts/#descdef-font-palette-values-base-palette>
116#[syntax(" light | dark | <integer [0,∞]> ")]
117#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
118#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
119#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit)]
120#[derive(csskit_derives::NodeWithMetadata)]
121pub enum BasePaletteValue<'a> {}
122
123/// ```text,ignore
124/// [ <integer [0,∞]> <color> ]#
125/// ```
126///
127/// <https://drafts.csswg.org/css-fonts/#descdef-font-palette-values-override-colors>
128#[syntax(" [ <integer [0,∞]> <color> ]# ")]
129#[derive(Parse, Peek, ToCursors, ToSpan, SemanticEq, Debug, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
130#[cfg_attr(feature = "serde", derive(serde::Serialize), serde())]
131#[cfg_attr(feature = "visitable", derive(csskit_derives::Visitable), visit)]
132#[derive(csskit_derives::NodeWithMetadata)]
133pub struct OverrideColorsValue<'a>;
134
135#[cfg(test)]
136mod tests {
137	use super::*;
138	use css_parse::assert_parse;
139
140	#[test]
141	fn test_writes() {
142		assert_parse!(CssAtomSet::ATOMS, FontPaletteValuesRule, "@font-palette-values --cooler{}");
143		assert_parse!(CssAtomSet::ATOMS, FontPaletteValuesRule, "@font-palette-values --cooler{base-palette:dark}");
144		assert_parse!(
145			CssAtomSet::ATOMS,
146			FontPaletteValuesRule,
147			"@font-palette-values --cooler{font-family:Bixa;base-palette:1;override-colors:0 red,1 #0f0}"
148		);
149		assert_parse!(
150			CssAtomSet::ATOMS,
151			FontPaletteValuesRule,
152			"@font-palette-values --Alternate{font-family:\"Bungee Spice\",Bixa}"
153		);
154	}
155}
css_ast/rules/font_palette_values.rs

css_ast/rules/
font_palette_values.rs
