#[cfg(not(feature = "nightly"))]
use leptos_reactive::{
MaybeProp, MaybeSignal, Memo, ReadSignal, RwSignal, Signal, SignalGet,
};
use wasm_bindgen::JsValue;
#[cfg(all(target_arch = "wasm32", feature = "web"))]
use wasm_bindgen::UnwrapThrowExt;
pub enum Property {
Value(JsValue),
Fn(Box<dyn Fn() -> JsValue>),
}
pub trait IntoProperty {
fn into_property(self) -> Property;
fn into_property_boxed(self: Box<Self>) -> Property;
}
impl<T, U> IntoProperty for T
where
T: Fn() -> U + 'static,
U: Into<JsValue>,
{
fn into_property(self) -> Property {
let modified_fn = Box::new(move || self().into());
Property::Fn(modified_fn)
}
fn into_property_boxed(self: Box<Self>) -> Property {
(*self).into_property()
}
}
macro_rules! prop_type {
($prop_type:ty) => {
impl IntoProperty for $prop_type {
#[inline(always)]
fn into_property(self) -> Property {
Property::Value(self.into())
}
fn into_property_boxed(self: Box<Self>) -> Property {
(*self).into_property()
}
}
impl IntoProperty for Option<$prop_type> {
#[inline(always)]
fn into_property(self) -> Property {
Property::Value(self.into())
}
fn into_property_boxed(self: Box<Self>) -> Property {
(*self).into_property()
}
}
};
}
macro_rules! prop_signal_type {
($signal_type:ty) => {
#[cfg(not(feature = "nightly"))]
impl<T> IntoProperty for $signal_type
where
T: Into<JsValue> + Clone,
{
fn into_property(self) -> Property {
let modified_fn = Box::new(move || self.get().into());
Property::Fn(modified_fn)
}
fn into_property_boxed(self: Box<Self>) -> Property {
(*self).into_property()
}
}
};
}
macro_rules! prop_signal_type_optional {
($signal_type:ty) => {
#[cfg(not(feature = "nightly"))]
impl<T> IntoProperty for $signal_type
where
T: Clone,
Option<T>: Into<JsValue>,
{
fn into_property(self) -> Property {
let modified_fn = Box::new(move || self.get().into());
Property::Fn(modified_fn)
}
fn into_property_boxed(self: Box<Self>) -> Property {
(*self).into_property()
}
}
};
}
prop_type!(JsValue);
prop_type!(String);
prop_type!(&String);
prop_type!(&str);
prop_type!(usize);
prop_type!(u8);
prop_type!(u16);
prop_type!(u32);
prop_type!(u64);
prop_type!(u128);
prop_type!(isize);
prop_type!(i8);
prop_type!(i16);
prop_type!(i32);
prop_type!(i64);
prop_type!(i128);
prop_type!(f32);
prop_type!(f64);
prop_type!(bool);
prop_signal_type!(ReadSignal<T>);
prop_signal_type!(RwSignal<T>);
prop_signal_type!(Memo<T>);
prop_signal_type!(Signal<T>);
prop_signal_type!(MaybeSignal<T>);
prop_signal_type_optional!(MaybeProp<T>);
#[cfg(all(target_arch = "wasm32", feature = "web"))]
use leptos_reactive::Oco;
#[cfg(all(target_arch = "wasm32", feature = "web"))]
#[inline(never)]
pub(crate) fn property_helper(
el: &web_sys::Element,
name: Oco<'static, str>,
value: Property,
) {
use leptos_reactive::create_render_effect;
match value {
Property::Fn(f) => {
let el = el.clone();
create_render_effect(move |_| {
let new = f();
let prop_name = wasm_bindgen::intern(&name);
property_expression(&el, prop_name, new.clone());
new
});
}
Property::Value(value) => {
let prop_name = wasm_bindgen::intern(&name);
property_expression(el, prop_name, value)
}
};
}
#[cfg(all(target_arch = "wasm32", feature = "web"))]
#[inline(never)]
pub(crate) fn property_expression(
el: &web_sys::Element,
prop_name: &str,
value: JsValue,
) {
js_sys::Reflect::set(el, &JsValue::from_str(prop_name), &value)
.unwrap_throw();
}