playwright/tests/assets/reading-list/react16.html

<link rel=stylesheet href='./style.css'>
<script src="./react_16.14.0.js"></script>
<script src="./react-dom_16.14.0.js"></script>

<div id=root></div>

<script>
const e = React.createElement;

class AppHeader extends React.Component {
  render() {
    return e(React.Fragment, null,
      e('h1', null, `reactjs@${React.version}`),
      e('h3', null, `Reading List: ${this.props.bookCount}`),
    );
  }
}

class ColorButton extends React.Component {
  render() {
    return e('button', {className: this.props.color, disabled: !this.props.enabled}, 'button ' + this.props.nested.index);
  }
}

class ButtonGrid extends React.Component {
  render() {
    const buttons = [];
    for (let i = 0; i < 9; ++i) {
      buttons.push(e(ColorButton, {
        color: ['red', 'green', 'blue'][i % 3],
        enabled: i % 2 === 0,
        nested: {
          index: i,
          value: i + 0.1,
        }
      }, null));
    };
    return e(React.Fragment, null, ...buttons);
  }
}

class NewBook extends React.Component {
  constructor(props) {
    super(props);
    this.state = '';
  }

  onInput(event) {
    this.state = event.target.value;
  }

  render() {
    return e(React.Fragment, null,
      e('input', {onInput: this.onInput.bind(this)}, null),
      e('button', {
        onClick: () => this.props.onNewBook(this.state),
      }, `new book`),
    );
  }
}

class BookItem extends React.Component {
  render() {
    return e('div', null, this.props.name);
  }
}

class BookList extends React.Component {
  render() {
    return e('ol', null, this.props.books.map(book => e('li', {key: book.name}, e(BookItem, { name: book.name }))));
  }
}

class App extends React.Component {
  constructor(props) {
    super(props);
    this.mountPoint = React.createRef();
    this.state = {
      books: [
        {name: 'Pride and Prejudice' },
        {name: 'To Kill a Mockingbird' },
        {name: 'The Great Gatsby' },
      ],
    };
  }

  render() {
    return e(React.Fragment, null,
      e(AppHeader, {bookCount: this.state.books.length}, null),
      e(NewBook, {onNewBook: bookName => this.onNewBook(bookName)}, null),
      e(BookList, {books: this.state.books}, null),
      e(ButtonGrid, null, null),
      e('div', {ref: this.mountPoint}, null),
    );
  }

  onNewBook(bookName) {
    this.setState({
      books: [...this.state.books, {name: bookName}],
    });
  }
}

window.mountApp = element => {
  const root = ReactDOM.render(e(App, null, null), element);
  const unmount = () => ReactDOM.unmountComponentAtNode(element);
  return {root, unmount};
};
window.app = window.mountApp(document.getElementById('root'));

window.mountNestedApp = () => window.mountApp(window.app.root.mountPoint.current);

</script>