Files
dioxus/packages/hooks/src/use_effect.rs
T

28 lines
959 B
Rust

use crate::use_hook_did_run;
use dioxus_core::prelude::*;
use dioxus_signals::{CopyValue, Effect, ReactiveContext, Writable};
use futures_util::select;
/// Create a new effect. The effect will be run immediately and whenever any signal it reads changes.
/// The signal will be owned by the current component and will be dropped when the component is dropped.
///
/// If the use_effect call was skipped due to an early return, the effect will no longer activate.
pub fn use_effect(mut callback: impl FnMut() + 'static) {
// let mut run_effect = use_hook(|| CopyValue::new(true));
// use_hook_did_run(move |did_run| run_effect.set(did_run));
use_hook(|| {
spawn(async move {
let rc = ReactiveContext::new(None);
loop {
// Run the effect
rc.run_in(|| callback());
// Wait for context to change
rc.changed().await;
}
});
});
}