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3 Commits
| Author | SHA1 | Date | |
|---|---|---|---|
| 6ac5d9220e | |||
| 23db798577 | |||
| c99a045400 |
+63
-43
@@ -1,58 +1,78 @@
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import React from 'react'
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import { useState, createContext, useContext } from 'react'
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import styles from './App.module.scss'
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class RandomUser extends React.Component {
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constructor(props) {
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super(props)
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this.state = { user: {} }
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const UserContext = createContext('')
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function UserProvider({ children }) {
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const [name,setName] = useState('');
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const toggleName = (newName) => {
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setName(newName);
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}
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componentDidMount() {
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fetch('https://randomuser.me/api')
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.then(responce => responce.json())
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.then(json => this.setState({ user: json.results[0] }));
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console.log('смонтирован')
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}
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componentDidUpdate(prevProps,prevState) {
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console.log(this.state);
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console.log('Компонент обнвлен')
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}
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componentWillUnmount() {
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console.log('Компонент таймера размонтирован')
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}
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render() {
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return <div>
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{this.state.user &&
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this.state.user.name &&
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(
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<>
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<h2>{this.state.user.name.first} {this.state.user.name.last}</h2>
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<img src={this.state.user.picture.medium} />
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<button onClick={() => {
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console.log('Загружаем ... ')
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fetch('https://randomuser.me/api')
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.then(responce => responce.json())
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.then(json => this.setState({ user: json.results[0] }));
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}}>Загрузить нового</button>
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</>
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return (
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<UserContext.Provider value={{name, toggleName}}>
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{children}
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</UserContext.Provider>
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)
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}
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</div>
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function Form() {
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const {name, toggleName} = useContext(UserContext)
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const [newName,setNewName] = useState('');
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const handleSubmit = (event) => {
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event.preventDefault();
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toggleName(event.target[0].value)
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}
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const handlerChange = (event) => {
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setNewName(event.target.value);
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}
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return (
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<form onSubmit={handleSubmit}>
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<input type='text' value={newName} onChange={handlerChange} />
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<button type='submit'>Войти</button>
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</form>
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)
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}
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function ExitButton() {
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const {name, toggleName} = useContext(UserContext)
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return (
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<button onClick={() => toggleName('')}>Выход</button>
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)
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}
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function Toolbar() {
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const {name, toggleName} = useContext(UserContext)
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return(
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<div className={styles.container}>
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<h3>Панель пользователя</h3>
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{name && `Привет ${name}`}
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{name ? <ExitButton /> : <Form /> }
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</div>
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)
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}
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function Page() {
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return (
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<div>
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<h1 style={{textAlign: 'center'}}>Главная страница</h1>
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<Toolbar />
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</div>
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)
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}
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function App() {
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const [showClock, setShowClock] = React.useState(true);
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return (
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<>
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<h1>Домашнее задание: жизненый цикл</h1>
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<button onClick={()=> setShowClock(!showClock)}>
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{showClock ? 'Скрыть часы' : 'Показать часы' }
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</button>
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{showClock && <RandomUser />}
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{/* Добавьте тестовый контент для проверки */}
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<h1>Hello, React!</h1>
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<UserProvider>
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<Page />
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</UserProvider>
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</>
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)
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}
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@@ -0,0 +1,13 @@
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.container {
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height: 500px;
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border: 1px solid black;
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border-radius: 10px;
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background-color: lightblue;
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}
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.item {
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font-size: 16pt;
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border: 1px dotted gray;
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/*margin: 5px 10px;
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padding: 10px;*/
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border-radius: 5px;
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}
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@@ -4,5 +4,7 @@ import { createRoot } from 'react-dom/client'
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import App from './App.jsx'
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createRoot(document.getElementById('root')).render(
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<StrictMode>
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<App />
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</StrictMode>
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)
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