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main.rs
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main.rs
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use gloo::storage::{LocalStorage, Storage};
use state::{Action, Filter, State};
use strum::IntoEnumIterator;
use yew::prelude::*;
mod components;
mod hooks;
mod state;
use components::{
entry::Entry as EntryItem, filter::Filter as FilterItem, header_input::HeaderInput,
info_footer::InfoFooter,
};
const KEY: &str = "yew.functiontodomvc.self";
#[function_component(App)]
fn app() -> Html {
let state = use_reducer(|| State {
entries: LocalStorage::get(KEY).unwrap_or_else(|_| vec![]),
filter: Filter::All, // TODO: get from uri
});
// Effect
use_effect_with_deps(
move |state| {
LocalStorage::set(KEY, &state.clone().entries).expect("failed to set");
|| ()
},
state.clone(),
);
// Callbacks
let onremove = {
let state = state.clone();
Callback::from(move |id: usize| state.dispatch(Action::Remove(id)))
};
let ontoggle = {
let state = state.clone();
Callback::from(move |id: usize| state.dispatch(Action::Toggle(id)))
};
let ontoggle_all = {
let state = state.clone();
Callback::from(move |_| state.dispatch(Action::ToggleAll))
};
let onclear_completed = {
let state = state.clone();
Callback::from(move |_| state.dispatch(Action::ClearCompleted))
};
let onedit = {
let state = state.clone();
Callback::from(move |(id, value): (usize, String)| {
state.dispatch(Action::Edit((id, value)));
})
};
let onadd = {
let state = state.clone();
Callback::from(move |value: String| {
state.dispatch(Action::Add(value));
})
};
let onset_filter = {
let state = state.clone();
Callback::from(move |filter: Filter| {
state.dispatch(Action::SetFilter(filter));
})
};
// Helpers
let completed = state
.entries
.iter()
.filter(|entry| Filter::Completed.fits(entry))
.count();
let is_all_completed = state
.entries
.iter()
.all(|e| state.filter.fits(e) & e.completed);
let total = state.entries.len();
let hidden_class = if state.entries.is_empty() {
"hidden"
} else {
""
};
html! {
<div class="todomvc-wrapper">
<section class="todoapp">
<header class="header">
<h1>{ "todos" }</h1>
<HeaderInput {onadd} />
</header>
<section class={classes!("main", hidden_class)}>
<input
type="checkbox"
class="toggle-all"
id="toggle-all"
checked={is_all_completed}
onclick={ontoggle_all}
/>
<label for="toggle-all" />
<ul class="todo-list">
{ for state.entries.iter().filter(|e| state.filter.fits(e)).cloned().map(|entry|
html! {
<EntryItem {entry}
ontoggle={ontoggle.clone()}
onremove={onremove.clone()}
onedit={onedit.clone()}
/>
}) }
</ul>
</section>
<footer class={classes!("footer", hidden_class)}>
<span class="todo-count">
<strong>{ total }</strong>
{ " item(s) left" }
</span>
<ul class="filters">
{ for Filter::iter().map(|filter| {
html! {
<FilterItem {filter}
selected={state.filter == filter}
onset_filter={onset_filter.clone()}
/>
}
}) }
</ul>
<button class="clear-completed" onclick={onclear_completed}>
{ format!("Clear completed ({})", completed) }
</button>
</footer>
</section>
<InfoFooter />
</div>
}
}
fn main() {
yew::start_app::<App>();
}