期望行为
实际行为
这里是程序的流程:
App.js被呈现,头被呈现,一个openSignIn
回调道具被传递给它,当用户单击SignIn链接时触发openSignIn
回调函数,当回调被调用时,它将导致App.js中的signinOpen
变为真,signinOpen
作为在注册组件中的支柱open
与closeSignin
回调函数一起传递,当Registration.js收到一个支柱时,它将调用componentWillReceiveProps
函数,注册组件中的isOpen
状态将成为不管open
支柱是什么
App.js:
import React, { Component } from 'react';
import {BrowserRouter as Router,Route} from 'react-router-dom';
import './App.css';
//Components imports
import Homepage from './components/Homepage/Homepage';
import Header from './components/Header/Header'
import Registration from './components/Registration/Registration';
import About from './components/About/About';
class App extends Component {
state = {
signinOpen:false
}
openSignIn = ()=>{
console.log("openSignin in app.js called")
this.setState({signinOpen:true},()=>{
console.log("in app.js,signinOpen is",this.state.signinOpen);
});
}
closeSignin = ()=>{
console.log("closeSignin called in app.js");
this.setState({signinOpen:false});
}
render() {
return (
<Router>
<div className="App">
<Header openSignIn = {this.openSignIn}/>
<Route path="/" exact render = {()=><Homepage/> }></Route>
<Route path="/about" component={About}/>
<Registration
open = {this.state.signinOpen}
closeSignin = {this.closeSignin}
/>
</div>
</Router>
);
}
}
export default App;
Registration.js:
import React,{Component} from 'react';
import './Registration.css';
import { Modal } from 'semantic-ui-react'
class Registration extends Component{
constructor(props){
super(props);
this.state = {
isOpen:false
}
this.handleClose = this.handleClose.bind(this);
}
componentWillReceiveProps(nextProps){
console.log("next props called, nextProps.open is: ")
console.log(nextProps.open);
this.setState({isOpen:nextProps.open},()=>{
console.log("now isOpen in Registration state is: ")
console.log(this.state.isOpen);
});
}
handleClose = ()=>{
console.log("handle close in registration called");
this.setState({isOpen:false});
this.props.closeSignin();
}
render(){
return(
<Modal
open={this.state.isOpen}
onClose={()=>this.handleClose}
closeOnEscape={true}
closeOnRootNodeClick={true}
closeIcon= {true}
>
<Modal.Header>
Delete Your Account
</Modal.Header>
<Modal.Content>
<p>Are you sure you want to delete your account</p>
</Modal.Content>
</Modal>
)
}
}
export default Registration;
Header.js:
import React,{Component} from 'react';
import './Header.css';
import { Grid } from 'semantic-ui-react'
import { Link } from 'react-router-dom';
import injectTapEventPlugin from 'react-tap-event-plugin';
injectTapEventPlugin();
class Header extends Component{
state = {
loggedIn:false
}
render(){
return(
<Grid divided='vertically'>
<Grid.Row>
<Grid.Column width={5}></Grid.Column>
<Grid.Column width={7}>
<header className="header">
<Link className="header-button" to="/about">About</Link>
<Link className="header-button" to="/polls">Poll List</Link>
{/*Instead of just adding the following link, we will do a check if the user is logged in,
is he's logged in we show a dropdown menu that says welcome */}
<Link className="header-button" to="#" onTouchTap={this.props.openSignIn}>SignIn</Link>
</header>
</Grid.Column>
<Grid.Column width={2}></Grid.Column>
</Grid.Row>
</Grid>
)
}
}
export default Header;
发布于 2018-05-24 04:59:34
SUIR Modal
组件的功能完全符合您的预期,包括内部处理开放状态本身。当您在Modal
组件上定义'open‘支柱时,您在内部选择退出默认状态,这使您负责控制该状态。
我建议用您想要触发模型的组件定义一个trigger
支柱,并使用SUIR提供的所有状态功能。
https://stackoverflow.com/questions/48590516
复制相似问题