91 lines
2.2 KiB
Rust
91 lines
2.2 KiB
Rust
#![allow(non_snake_case)]
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use dioxus::prelude::*;
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use dioxus_signals::{use_signal, use_signal_sync, Signal};
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use generational_box::SyncStorage;
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fn main() {
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dioxus_desktop::launch(app);
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}
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#[derive(Clone, Copy)]
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enum ErrorComponent {
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ReadsSignal,
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ReadsMutSignal,
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ReadDroppedSignal,
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}
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fn app(cx: Scope) -> Element {
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let error = use_signal(cx, || None);
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render! {
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match *error() {
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Some(ErrorComponent::ReadsSignal) => render! { ReadsSignal {} },
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Some(ErrorComponent::ReadsMutSignal) => render! { ReadsMutSignal {} },
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Some(ErrorComponent::ReadDroppedSignal) => render! { ReadDroppedSignal {} },
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None => render! {
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button {
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onclick: move |_| error.set(Some(ErrorComponent::ReadsSignal)),
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"ReadsSignal"
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}
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button {
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onclick: move |_| error.set(Some(ErrorComponent::ReadsMutSignal)),
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"ReadsMutSignal"
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}
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button {
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onclick: move |_| error.set(Some(ErrorComponent::ReadDroppedSignal)),
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"ReadDroppedSignal"
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}
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}
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}
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}
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}
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fn ReadsSignal(cx: Scope) -> Element {
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let signal = use_signal_sync(cx, || 0);
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let _write = signal.write();
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let _read = signal.read();
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todo!()
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}
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fn ReadsMutSignal(cx: Scope) -> Element {
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let signal = use_signal_sync(cx, || 0);
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let _read = signal.read();
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let _write = signal.write();
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todo!()
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}
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fn ReadDroppedSignal(cx: Scope) -> Element {
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let signal = use_signal_sync(cx, || None);
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if cx.generation() < 4 {
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cx.needs_update();
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}
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render! {
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if let Some(value) = &*signal() {
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render!{"{value:?}"}
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} else {
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render! {
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ReadDroppedSignalChild { parent_signal: signal }
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}
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}
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}
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}
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#[component]
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fn ReadDroppedSignalChild(
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cx: Scope,
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parent_signal: Signal<Option<Signal<i32, SyncStorage>>, SyncStorage>,
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) -> Element {
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let signal = use_signal_sync(cx, || 0);
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cx.use_hook(move || {
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parent_signal.set(Some(signal.clone()));
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});
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render! {
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"{signal}"
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}
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}
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