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use super::*;
#[doc=include_str!("readme.md")]
#[derive(Debug, Clone)]
pub struct TailwindSnapAlign {
kind: SnapAlign,
}
#[derive(Debug, Clone)]
enum SnapAlign {
Standard(String),
Arbitrary(String),
}
impl<T> From<T> for TailwindSnapAlign
where
T: Into<String>,
{
fn from(kind: T) -> Self {
Self { kind: SnapAlign::Standard(kind.into()) }
}
}
impl Display for TailwindSnapAlign {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
match &self.kind {
SnapAlign::Standard(s) => match s.as_str() {
"start" => write!(f, "snap-start"),
"end" => write!(f, "snap-end"),
"center" => write!(f, "snap-center"),
_ => write!(f, "snap-align-{}", s),
},
SnapAlign::Arbitrary(s) => write!(f, "snap-align-[{}]", s),
}
}
}
impl TailwindInstance for TailwindSnapAlign {
fn attributes(&self, _: &TailwindBuilder) -> BTreeSet<CssAttribute> {
let cursor = match &self.kind {
SnapAlign::Standard(s) => s,
SnapAlign::Arbitrary(s) => s,
};
css_attributes! {
"scroll-snap-align" => cursor
}
}
}
impl TailwindSnapAlign {
pub fn parse(pattern: &[&str], arbitrary: &TailwindArbitrary) -> Result<Self> {
match pattern {
[] => Self::parse_arbitrary(arbitrary),
_ => {
let s = pattern.join("-");
debug_assert!(Self::check_valid(&s));
Ok(Self { kind: SnapAlign::Standard(s) })
},
}
}
pub fn parse_arbitrary(arbitrary: &TailwindArbitrary) -> Result<Self> {
debug_assert!(arbitrary.is_some());
Ok(Self { kind: SnapAlign::Arbitrary(arbitrary.to_string()) })
}
pub fn check_valid(mode: &str) -> bool {
let set = BTreeSet::from_iter(vec!["center", "inherit", "initial", "none", "revert", "unset"]);
set.contains(mode)
}
}