refactor todo mvc example (#1556)

This commit is contained in:
Alexander authored and GitHub committed 2023-10-19 09:26:17 -05:00
1 parent c7963a0344
commit 37c6c67a17
1 file changed
+114 -68
+114 -68
View File
@@ -24,8 +24,6 @@ pub struct TodoItem {
pub fn app(cx: Scope<()>) -> Element {
let todos = use_state(cx, im_rc::HashMap::<u32, TodoItem>::default);
let filter = use_state(cx, || FilterState::All);
let draft = use_state(cx, || "".to_string());
let todo_id = use_state(cx, || 0);
// Filter the todos based on the filter state
let mut filtered_todos = todos
@@ -47,42 +45,11 @@ pub fn app(cx: Scope<()>) -> Element {
let show_clear_completed = todos.values().any(|todo| todo.checked);
let selected = |state| {
if *filter == state {
"selected"
} else {
"false"
}
};
cx.render(rsx! {
section { class: "todoapp",
style { include_str!("./assets/todomvc.css") }
header { class: "header",
h1 {"todos"}
input {
class: "new-todo",
placeholder: "What needs to be done?",
value: "{draft}",
autofocus: "true",
oninput: move |evt| {
draft.set(evt.value.clone());
},
onkeydown: move |evt| {
if evt.key() == Key::Enter && !draft.is_empty() {
todos.make_mut().insert(
**todo_id,
TodoItem {
id: **todo_id,
checked: false,
contents: draft.to_string(),
},
);
*todo_id.make_mut() += 1;
draft.set("".to_string());
}
}
}
TodoHeader {
todos: todos,
}
section {
class: "main",
@@ -111,44 +78,56 @@ pub fn app(cx: Scope<()>) -> Element {
}))
}
(!todos.is_empty()).then(|| rsx!(
footer { class: "footer",
span { class: "todo-count",
strong {"{active_todo_count} "}
span {"{active_todo_text} left"}
}
ul { class: "filters",
for (state, state_text, url) in [
(FilterState::All, "All", "#/"),
(FilterState::Active, "Active", "#/active"),
(FilterState::Completed, "Completed", "#/completed"),
] {
li {
a {
href: url,
class: selected(state),
onclick: move |_| filter.set(state),
prevent_default: "onclick",
state_text
}
}
}
}
show_clear_completed.then(|| rsx!(
button {
class: "clear-completed",
onclick: move |_| todos.make_mut().retain(|_, todo| !todo.checked),
"Clear completed"
}
))
ListFooter {
active_todo_count: active_todo_count,
active_todo_text: active_todo_text,
show_clear_completed: show_clear_completed,
todos: todos,
filter: filter,
}
))
}
}
footer { class: "info",
p { "Double-click to edit a todo" }
p { "Created by ", a { href: "http://github.com/jkelleyrtp/", "jkelleyrtp" }}
p { "Part of ", a { href: "http://todomvc.com", "TodoMVC" }}
PageFooter {}
})
}
#[derive(Props)]
pub struct TodoHeaderProps<'a> {
todos: &'a UseState<im_rc::HashMap<u32, TodoItem>>,
}
pub fn TodoHeader<'a>(cx: Scope<'a, TodoHeaderProps<'a>>) -> Element {
let draft = use_state(cx, || "".to_string());
let todo_id = use_state(cx, || 0);
cx.render(rsx! {
header { class: "header",
h1 {"todos"}
input {
class: "new-todo",
placeholder: "What needs to be done?",
value: "{draft}",
autofocus: "true",
oninput: move |evt| {
draft.set(evt.value.clone());
},
onkeydown: move |evt| {
if evt.key() == Key::Enter && !draft.is_empty() {
cx.props.todos.make_mut().insert(
**todo_id,
TodoItem {
id: **todo_id,
checked: false,
contents: draft.to_string(),
},
);
*todo_id.make_mut() += 1;
draft.set("".to_string());
}
}
}
}
})
}
@@ -209,3 +188,70 @@ pub fn TodoEntry<'a>(cx: Scope<'a, TodoEntryProps<'a>>) -> Element {
}
})
}
#[derive(Props)]
pub struct ListFooterProps<'a> {
todos: &'a UseState<im_rc::HashMap<u32, TodoItem>>,
active_todo_count: usize,
active_todo_text: &'a str,
show_clear_completed: bool,
filter: &'a UseState<FilterState>,
}
pub fn ListFooter<'a>(cx: Scope<'a, ListFooterProps<'a>>) -> Element {
let active_todo_count = cx.props.active_todo_count;
let active_todo_text = cx.props.active_todo_text;
let selected = |state| {
if *cx.props.filter == state {
"selected"
} else {
"false"
}
};
cx.render(rsx! {
footer { class: "footer",
span { class: "todo-count",
strong {"{active_todo_count} "}
span {"{active_todo_text} left"}
}
ul { class: "filters",
for (state, state_text, url) in [
(FilterState::All, "All", "#/"),
(FilterState::Active, "Active", "#/active"),
(FilterState::Completed, "Completed", "#/completed"),
] {
li {
a {
href: url,
class: selected(state),
onclick: move |_| cx.props.filter.set(state),
prevent_default: "onclick",
state_text
}
}
}
}
if cx.props.show_clear_completed {
cx.render(rsx! {
button {
class: "clear-completed",
onclick: move |_| cx.props.todos.make_mut().retain(|_, todo| !todo.checked),
"Clear completed"
}
})
}
}
})
}
pub fn PageFooter(cx: Scope) -> Element {
cx.render(rsx! {
footer { class: "info",
p { "Double-click to edit a todo" }
p { "Created by ", a { href: "http://github.com/jkelleyrtp/", "jkelleyrtp" }}
p { "Part of ", a { href: "http://todomvc.com", "TodoMVC" }}
}
})
}