React-组合模式-CFANZ编程社区

React-组合模式
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8" />
    <title>Learn React</title>
    <script src="https://cdn.staticfile.org/react/16.4.0/umd/react.development.js"></script>
    <script src="https://cdn.staticfile.org/react-dom/16.4.0/umd/react-dom.development.js"></script>
    <!-- 生产环境中不建议使用 -->
    <script src="https://cdn.staticfile.org/babel-standalone/6.26.0/babel.min.js"></script>
</head>
<body>
<div id="root"></div>
<script type="text/babel">

    function FancyBorder(props){
        return (
            <div className={'FancyBorder FancyBorder-' + props.color}>
                {props.children}
            </div>
        );
    }

    function Dialog(props){
        return(
            <FancyBorder color="blue">
                <h1 className="Dialog-title">
                    {props.title}
                </h1>
                <p className="Dialog-message">
                    {props.message}
                </p>
                    {props.children}
            </FancyBorder>
        )
    }

    class SigUpDialog extends React.Component{
        constructor(props){
            super(props);
            this.handleChange = this.handleChange.bind(this);
            this.handleSignUp = this.handleSignUp.bind(this);
            this.state = {login: ''};
        }

        handleChange(e){
            this.setState({login: e.target.value});
        }

        handleSignUp(){
            alert(`Welcome aboard,${this.state.login}!`);
        }

        render(){
            return (
                <Dialog
                    title="Mars Exploration Program"
                    message="How should we refer to you?">
                    <input
                        value={this.state.login}
                        onChange={this.handleChange}/>
                    <button onClick={this.handleSignUp}>
                        Sign Me Up!
                    </button>
                </Dialog>
            )
        }
    }

    ReactDOM.render(
        <SigUpDialog />,
        document.getElementById('root')
    );

</script>
</body>
</html>
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