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93 changes: 27 additions & 66 deletions index.html
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Original file line number Diff line number Diff line change
@@ -1,69 +1,30 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Template • TodoMVC</title>
<!-- TodoMVC Boilerplate CSS files -->
<link rel="stylesheet" href="css/index.css" />
</head>
<body>
<section class="todoapp">
<header class="header">
<h1>todos</h1>
<input
placeholder="What needs to be done?"
autofocus
class="new-todo"
data-todo="new"
/>
</header>
<!-- This section should be hidden by default and shown when there are todos -->
<section class="main" data-todo="main">
<input
id="toggle-all"
class="toggle-all"
type="checkbox"
data-todo="toggle-all"
/>
<label for="toggle-all">Mark all as complete</label>
<ul class="todo-list" data-todo="list"></ul>
</section>
<!-- This footer should be hidden by default and shown when there are todos -->
<footer class="footer" data-todo="footer">
<!-- This should be `0 items left` by default -->
<span class="todo-count" data-todo="count"
><strong>0</strong> items left</span
>
<!-- Remove this if you don't implement routing -->
<ul class="filters" data-todo="filters">
<li>
<a class="selected" href="#/">All</a>
</li>
<li>
<a href="#/active">Active</a>
</li>
<li>
<a href="#/completed">Completed</a>
</li>
</ul>
<!-- Hidden if no completed items are left ↓ -->
<button class="clear-completed" data-todo="clear-completed">
Clear completed
</button>
</footer>
</section>
<footer class="info">
<p>Double-click to edit a todo</p>
<p>Created by <a href="https://twitter.com/1Marc">Marc Grabanski</a></p>
<p>
Project on GitHub:
<a href="https://github.com/1Marc/todomvc-vanillajs-2022"
>Vanilla JS TodoMVC 2022</a
>
</p>
</footer>
<!-- Scripts here. Don't remove ↓ -->
<script type="module" src="js/app.js"></script>
</body>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Template • TodoMVC</title>
<!-- TodoMVC Boilerplate CSS files -->
<link rel="stylesheet" href="css/index.css" />
<script type="importmap">
{
"imports": {
"lit-html": "./node_modules/lit-html/lit-html.js"
}
}
</script>
</head>
<body>
<section class="todoapp"></section>
<footer class="info">
<p>Double-click to edit a todo</p>
<p>Created by <a href="https://twitter.com/1Marc">Marc Grabanski</a></p>
<p>
Project on GitHub:
<a href="https://github.com/1Marc/todomvc-vanillajs-2022">Vanilla JS TodoMVC 2022</a>
</p>
</footer>
<!-- Scripts here. Don't remove ↓ -->
<script type="module" src="js/app.js"></script>
</body>
</html>
255 changes: 138 additions & 117 deletions js/app.js
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Original file line number Diff line number Diff line change
@@ -1,125 +1,146 @@
import { delegate, getURLHash, insertHTML, replaceHTML } from "./helpers.js";
import { render as litRender, html, nothing } from "lit-html";
import { getURLHash } from "./helpers.js";
import { TodoStore } from "./store.js";

const Todos = new TodoStore("todo-modern-vanillajs");

const App = {
$: {
input: document.querySelector('[data-todo="new"]'),
toggleAll: document.querySelector('[data-todo="toggle-all"]'),
clear: document.querySelector('[data-todo="clear-completed"]'),
list: document.querySelector('[data-todo="list"]'),
showMain(show) {
document.querySelector('[data-todo="main"]').style.display = show ? "block" : "none";
},
showFooter(show) {
document.querySelector('[data-todo="footer"]').style.display = show ? "block" : "none";
},
showClear(show) {
App.$.clear.style.display = show ? "block" : "none";
},
setActiveFilter(filter) {
document.querySelectorAll(`[data-todo="filters"] a`).forEach((el) => {
if (el.matches(`[href="#/${filter}"]`)) {
el.classList.add("selected");
} else {
el.classList.remove("selected");
}
});
},
displayCount(count) {
replaceHTML(
document.querySelector('[data-todo="count"]'),
`
<strong>${count}</strong>
${count === 1 ? "item" : "items"} left
`
);
},
},
init() {
Todos.addEventListener("save", App.render);
App.filter = getURLHash();
window.addEventListener("hashchange", () => {
App.filter = getURLHash();
App.render();
});
App.$.input.addEventListener("keyup", (e) => {
if (e.key === "Enter" && e.target.value.length) {
Todos.add({
title: e.target.value,
completed: false,
id: "id_" + Date.now(),
});
App.$.input.value = "";
}
});
App.$.toggleAll.addEventListener("click", (e) => {
Todos.toggleAll();
});
App.$.clear.addEventListener("click", (e) => {
Todos.clearCompleted();
});
App.bindTodoEvents();
App.render();
},
todoEvent(event, selector, handler) {
delegate(App.$.list, selector, event, (e) => {
let $el = e.target.closest("[data-id]");
handler(Todos.get($el.dataset.id), $el, e);
});
},
bindTodoEvents() {
App.todoEvent("click", '[data-todo="destroy"]', (todo) => Todos.remove(todo));
App.todoEvent("click", '[data-todo="toggle"]', (todo) => Todos.toggle(todo));
App.todoEvent("dblclick", '[data-todo="label"]', (_, $li) => {
$li.classList.add("editing");
$li.querySelector('[data-todo="edit"]').focus();
});
App.todoEvent("keyup", '[data-todo="edit"]', (todo, $li, e) => {
let $input = $li.querySelector('[data-todo="edit"]');
if (e.key === "Enter" && $input.value) Todos.update({ ...todo, title: $input.value });
if (e.key === "Escape") {
$input.value = todo.title;
App.render();
}
});
App.todoEvent("blur", '[data-todo="edit"]', (todo, $li, e) => {
const title = $li.querySelector('[data-todo="edit"]').value;
Todos.update({ ...todo, title });
});
},
createTodoItem(todo) {
const li = document.createElement("li");
li.dataset.id = todo.id;
if (todo.completed) {
li.classList.add("completed");
}
insertHTML(
li,
`
<div class="view">
<input data-todo="toggle" class="toggle" type="checkbox" ${todo.completed ? "checked" : ""}>
<label data-todo="label"></label>
<button class="destroy" data-todo="destroy"></button>
</div>
<input class="edit" data-todo="edit">
`
);
li.querySelector('[data-todo="label"]').textContent = todo.title;
li.querySelector('[data-todo="edit"]').value = todo.title;
return li;
},
render() {
const count = Todos.all().length;
App.$.setActiveFilter(App.filter);
App.$.list.replaceChildren(...Todos.all(App.filter).map((todo) => App.createTodoItem(todo)));
App.$.showMain(count);
App.$.showFooter(count);
App.$.showClear(Todos.hasCompleted());
App.$.toggleAll.checked = Todos.isAllCompleted();
App.$.displayCount(Todos.all("active").length);
},
editId: "", // used to show edit field for a todo

init() {
Todos.addEventListener("save", App.render);
App.filter = getURLHash();
window.addEventListener("hashchange", () => {
App.filter = getURLHash();
App.render();
});
App.render();
},

createTodoItem(todo) {
const classes = [];
if (todo.completed) {
classes.push("completed");
}
if (App.editId === todo.id) {
classes.push("editing");
}
return html` <li class="${classes.join(" ")}">
<div class="view">
<input
class="toggle"
type="checkbox"
.checked=${todo.completed}
@click="${() => Todos.toggle(todo)}"
/>
<label @dblclick="${() => App.editOn(todo)}">${todo.title}</label>
<button class="destroy" @click="${() => Todos.remove(todo)}"></button>
</div>
<input
class="edit"
value="${todo.title}"
@keyup="${(evt) => App.saveEdit(evt, todo)}"
@blur="${(evt) => App.saveEdit(evt, todo)}"
/>
</li>`;
},

saveEdit(e, todo) {
App.editId = "";
if ((e.type === "blur" || e.key === "Enter") && e.target.value.length) {
Todos.update({
id: todo.id,
title: e.target.value,
});
}
},

saveNew(e) {
if (e.key === "Enter" && e.target.value.length) {
Todos.add({
title: e.target.value,
completed: false,
id: "id_" + Date.now(),
});
e.target.value = "";
}
},

editOn(todo) {
App.editId = todo.id;
App.render();
},

displayCount() {
const count = Todos.all("active").length;
return count
? html`<span class="todo-count">
<strong>${count}</strong>
${count === 1 ? "item" : "items"} left
</span>`
: nothing;
},

clearButton() {
return Todos.hasCompleted()
? html` <button class="clear-completed" @click="${() => Todos.clearCompleted()}">
Clear completed
</button>`
: nothing;
},

list() {
return Todos.all().length
? html`<section class="main">
<input
id="toggle-all"
class="toggle-all"
type="checkbox"
.checked=${Todos.isAllCompleted()}
@click=${() => Todos.toggleAll()}
/>
<label for="toggle-all">Mark all as complete</label>
<ul class="todo-list">
${Todos.all(App.filter).map((todo) => App.createTodoItem(todo))}
</ul>
</section>`
: nothing;
},

base() {
return html`
<header class="header">
<h1>todos</h1>
<input
placeholder="What needs to be done?"
autofocus
class="new-todo"
@keyup="${(evt) => App.saveNew(evt)}"
/>
</header>
${App.list()}
<footer class="footer">
${App.displayCount()}
<ul class="filters">
<li>
<a class="${App.filter === "" ? "selected" : ""}" href="#/">All</a>
</li>
<li>
<a class="${App.filter === "active" ? "selected" : ""}" href="#/active">Active</a>
</li>
<li>
<a class="${App.filter === "completed" ? "selected" : ""}" href="#/completed"
>Completed</a
>
</li>
</ul>
${App.clearButton()}
</footer>
`;
},
render() {
litRender(App.base(), document.querySelector(".todoapp"));
},
};

App.init();
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