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style: add css(function, iterable), and derive ToCss for VariantAlternates.

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Emilio Cobos Álvarez 2017-11-11 14:27:31 +01:00
parent 33fa728d6e
commit 06f8f0384b
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2 changed files with 25 additions and 60 deletions
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64
components/style/values/specified/font.rs
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@ -636,81 +636,31 @@ bitflags! {
}
}
#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
#[derive(Clone, Debug, MallocSizeOf, PartialEq, ToCss)]
/// Set of variant alternates
pub enum VariantAlternates {
/// Enables display of stylistic alternates
#[css(function)]
Stylistic(CustomIdent),
/// Enables display with stylistic sets
#[css(comma, function, iterable)]
Styleset(Box<[CustomIdent]>),
/// Enables display of specific character variants
#[css(comma, function, iterable)]
CharacterVariant(Box<[CustomIdent]>),
/// Enables display of swash glyphs
#[css(function)]
Swash(CustomIdent),
/// Enables replacement of default glyphs with ornaments
#[css(function)]
Ornaments(CustomIdent),
/// Enables display of alternate annotation forms
#[css(function)]
Annotation(CustomIdent),
/// Enables display of historical forms
HistoricalForms,
}
impl ToCss for VariantAlternates {
fn to_css<W>(&self, dest: &mut W) -> fmt::Result where W: fmt::Write {
match *self {
VariantAlternates::Swash(ref atom) => {
dest.write_str("swash")?;
dest.write_str("(")?;
atom.to_css(dest)?;
dest.write_str(")")
},
VariantAlternates::Stylistic(ref atom) => {
dest.write_str("stylistic")?;
dest.write_str("(")?;
atom.to_css(dest)?;
dest.write_str(")")
},
VariantAlternates::Ornaments(ref atom) => {
dest.write_str("ornaments")?;
dest.write_str("(")?;
atom.to_css(dest)?;
dest.write_str(")")
},
VariantAlternates::Annotation(ref atom) => {
dest.write_str("annotation")?;
dest.write_str("(")?;
atom.to_css(dest)?;
dest.write_str(")")
},
VariantAlternates::Styleset(ref vec) => {
dest.write_str("styleset")?;
dest.write_str("(")?;
let mut iter = vec.iter();
iter.next().unwrap().to_css(dest)?;
for c in iter {
dest.write_str(", ")?;
c.to_css(dest)?;
}
dest.write_str(")")
},
VariantAlternates::CharacterVariant(ref vec) => {
dest.write_str("character-variant")?;
dest.write_str("(")?;
let mut iter = vec.iter();
iter.next().unwrap().to_css(dest)?;
for c in iter {
dest.write_str(", ")?;
c.to_css(dest)?;
}
dest.write_str(")")
},
VariantAlternates::HistoricalForms => {
dest.write_str("historical-forms")
},
}
}
}
#[derive(Clone, Debug, MallocSizeOf, PartialEq)]
/// List of Variant Alternates
pub struct VariantAlternatesList(pub Box<[VariantAlternates]>);