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|
function App() {
const { Container, Row, Col } = ReactBootstrap;
return (
<Container>
<Row>
<Col md={{ offset: 3, span: 6 }}>
<TodoListCard />
</Col>
</Row>
</Container>
);
}
function TodoListCard() {
const [items, setItems] = React.useState(null);
React.useEffect(() => {
fetch('/items')
.then(r => r.json())
.then(setItems);
}, []);
const onNewItem = React.useCallback(
newItem => {
setItems([...items, newItem]);
},
[items],
);
const onItemUpdate = React.useCallback(
item => {
const index = items.findIndex(i => i.id === item.id);
setItems([
...items.slice(0, index),
item,
...items.slice(index + 1),
]);
},
[items],
);
const onItemRemoval = React.useCallback(
item => {
const index = items.findIndex(i => i.id === item.id);
setItems([...items.slice(0, index), ...items.slice(index + 1)]);
},
[items],
);
if (items === null) return 'Loading...';
return (
<React.Fragment>
<AddItemForm onNewItem={onNewItem} />
{items.length === 0 && (
<p className="text-center">No items yet! Add one above!</p>
)}
{items.map(item => (
<ItemDisplay
item={item}
key={item.id}
onItemUpdate={onItemUpdate}
onItemRemoval={onItemRemoval}
/>
))}
</React.Fragment>
);
}
function AddItemForm({ onNewItem }) {
const { Form, InputGroup, Button } = ReactBootstrap;
const [newItem, setNewItem] = React.useState('');
const [submitting, setSubmitting] = React.useState(false);
const submitNewItem = e => {
e.preventDefault();
setSubmitting(true);
fetch('/items', {
method: 'POST',
body: JSON.stringify({ name: newItem }),
headers: { 'Content-Type': 'application/json' },
})
.then(r => r.json())
.then(item => {
onNewItem(item);
setSubmitting(false);
setNewItem('');
});
};
return (
<Form onSubmit={submitNewItem}>
<InputGroup className="mb-3">
<Form.Control
value={newItem}
onChange={e => setNewItem(e.target.value)}
type="text"
placeholder="New Item"
aria-describedby="basic-addon1"
/>
<InputGroup.Append>
<Button
type="submit"
variant="success"
disabled={!newItem.length}
className={submitting ? 'disabled' : ''}
>
{submitting ? 'Adding...' : 'Add Item'}
</Button>
</InputGroup.Append>
</InputGroup>
</Form>
);
}
function ItemDisplay({ item, onItemUpdate, onItemRemoval }) {
const { Container, Row, Col, Button } = ReactBootstrap;
const toggleCompletion = () => {
fetch(`/items/${item.id}`, {
method: 'PUT',
body: JSON.stringify({
name: item.name,
completed: !item.completed,
}),
headers: { 'Content-Type': 'application/json' },
})
.then(r => r.json())
.then(onItemUpdate);
};
const removeItem = () => {
fetch(`/items/${item.id}`, { method: 'DELETE' }).then(() =>
onItemRemoval(item),
);
};
return (
<Container fluid className={`item ${item.completed && 'completed'}`}>
<Row>
<Col xs={1} className="text-center">
<Button
className="toggles"
size="sm"
variant="link"
onClick={toggleCompletion}
aria-label={
item.completed
? 'Mark item as incomplete'
: 'Mark item as complete'
}
>
<i
className={`far ${
item.completed ? 'fa-check-square' : 'fa-square'
}`}
/>
</Button>
</Col>
<Col xs={10} className="name">
{item.name}
</Col>
<Col xs={1} className="text-center remove">
<Button
size="sm"
variant="link"
onClick={removeItem}
aria-label="Remove Item"
>
<i className="fa fa-trash text-danger" />
</Button>
</Col>
</Row>
</Container>
);
}
ReactDOM.render(<App />, document.getElementById('root'));
|
