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mod hook;
mod manager;
use std::sync::Arc;
pub use hook::{render_done, use_state};
use parking_lot::Mutex;
use crate::event;
#[derive(Default)]
pub struct State<T> {
inner: Arc<Mutex<T>>,
}
impl<T> State<T> {
pub fn new(inner: T) -> Self {
Self {
inner: Arc::new(Mutex::new(inner)),
}
}
pub fn set(&self, new: T) {
let mut inner = self.inner.lock();
*inner = new;
event::re_render().expect("re_render");
}
pub fn inspect<F, R>(&self, f: F) -> R
where
F: FnOnce(&T) -> R,
{
f(&self.inner.lock())
}
pub fn mutate<F, R>(&self, f: F)
where
F: FnOnce(&mut T) -> R,
{
let mut inner = self.inner.lock();
drop(f(&mut inner));
event::re_render().expect("re_render");
}
pub fn update<F>(&self, f: F)
where
F: FnOnce(&T) -> T,
{
let mut inner = self.inner.lock();
*inner = f(&inner);
event::re_render().expect("re_render");
}
}
impl<T: Clone> State<T> {
pub fn get(&self) -> T {
self.inner.lock().clone()
}
}
impl<T> Clone for State<T> {
fn clone(&self) -> Self {
Self { inner: self.inner.clone() }
}
}
