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use crate::{css_attributes, CssAttribute, Result, TailwindArbitrary, TailwindBuilder, TailwindInstance};
use std::{
collections::BTreeSet,
fmt::{Display, Formatter},
};
#[doc = include_str!("readme.md")]
#[derive(Clone, Debug)]
pub struct TailwindBlend {
mode: String,
}
impl Display for TailwindBlend {
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
write!(f, "mix-blend-{}", self.mode)
}
}
impl TailwindInstance for TailwindBlend {
fn attributes(&self, _: &TailwindBuilder) -> BTreeSet<CssAttribute> {
css_attributes! {
"mix-blend-mode" => self.mode
}
}
}
impl TailwindBlend {
pub fn parse(input: &[&str], arbitrary: &TailwindArbitrary) -> Result<Self> {
debug_assert!(arbitrary.is_none(), "forbidden arbitrary after blur");
let mode = input.join("-");
debug_assert!(Self::check_valid(&mode), "invalid blend mode");
Ok(Self { mode })
}
#[inline]
pub fn get_class(&self) -> String {
self.mode.to_owned()
}
#[inline]
pub fn get_properties(&self) -> String {
self.mode.to_owned()
}
fn check_valid(mode: &str) -> bool {
let set = BTreeSet::from_iter(vec![
"normal",
"multiply",
"screen",
"overlay",
"darken",
"lighten",
"color-dodge",
"color-burn",
"hard-light",
"soft-light",
"difference",
"exclusion",
"hue",
"saturation",
"color",
"luminosity",
]);
set.contains(mode)
}
}
