Jonathan Kelley
f2b1c6d97f
overhaul dioxus fullstack using a new implementation of server_fn This PR is a complete rewrite of dioxus fullstack designed to improve compatibility with axum and to fix a number of compilation errors based on feature flag unification plumbing through macros.
29 lines
1.0 KiB
Rust
29 lines
1.0 KiB
Rust
use dioxus_core::{use_hook, Callback};
|
|
|
|
/// Create a callback that's always up to date. Whenever this hook is called the inner callback will be replaced with the new callback but the handle will remain.
|
|
///
|
|
/// There is *currently* no signal tracking on the Callback so anything reading from it will not be updated.
|
|
///
|
|
/// This API is in flux and might not remain.
|
|
#[doc = include_str!("../docs/rules_of_hooks.md")]
|
|
pub fn use_callback<T: 'static, O: 'static>(f: impl FnMut(T) -> O + 'static) -> Callback<T, O> {
|
|
let mut callback = Some(f);
|
|
|
|
// Create a copyvalue with no contents
|
|
// This copyvalue is generic over F so that it can be sized properly
|
|
let mut inner = use_hook(|| {
|
|
Callback::new(
|
|
callback
|
|
.take()
|
|
.expect("Callback cannot be None on first call"),
|
|
)
|
|
});
|
|
|
|
if let Some(callback) = callback.take() {
|
|
// Every time this hook is called replace the inner callback with the new callback
|
|
inner.replace(Box::new(callback));
|
|
}
|
|
|
|
inner
|
|
}
|