小编zaz*_*ter的帖子

我试图实现悬停事件但是onMouseLeave并不总是在离开元素时触发,特别是在快速移动光标元素时.我试过Chrome,Firefox和Internet Explorer,但在每个浏览器中都出现了同样的问题.

我的代码:

import React from 'react';
import Autolinker from 'autolinker';
import DateTime from './DateTime.jsx'
class Comment extends React.Component{

     constructor(props){
        super(props);
        this.handleOnMouseOver = this.handleOnMouseOver.bind(this);
        this.handleOnMouseOut = this.handleOnMouseOut.bind(this);
        this.state = {
            hovering: false
        };
    }

    render(){
        return <li className="media comment" onMouseEnter={this.handleOnMouseOver} onMouseLeave={this.handleOnMouseOut}>
            <div className="image">
                <img src={this.props.activity.user.avatar.small_url} width="42" height="42" />
            </div>
            <div className="body">
                {this.state.hovering ? null : <time className="pull-right"><DateTime timeInMiliseconds={this.props.activity.published_at} byDay={true}/></time>}
                <p>
                    <strong>
                        <span>{this.props.activity.user.full_name}</span>
                        {this.state.hovering ? <span className="edit-comment">Edit</span> : null}

                    </strong>
                </p>    
             </div>
        </li>;
    }


    handleOnMouseOver(event){
         event.preventDefault();
         this.setState({hovering:true});
    }

    handleOnMouseOut(event){
        event.preventDefault();
        this.setState({hovering:false}); …

我有这样的组件:

import React from 'react';
import Autolinker from 'autolinker';

class Comment extends React.Component{

    constructor(props){
        super(props);
    }

    render(){
        return <li className="media comment">
            <div className="image">
                <img src={this.props.activity.user.avatar.small_url} width="42" height="42" />
            </div>
            <div className="body">
                <p>
                    <strong>{this.props.activity.user.full_name}</strong>
                </p>
            </div>
            <div>
                <p>
                    {Autolinker.link(this.props.activity.text)}
                </p>
            </div>
        </li>;
    }
}

export default Comment;

Autolinker返回一个字符串值,如下所示:

"So basically <a href="http://www.silastar.com/dev-sila" target="_blank">silastar.com/dev-sila</a> is perfect and works correctly?"

如何将此字符串转换为html JSX,以便锚链接显示为链接而不是纯文本？

我试图通过this.refs调用子组件内的函数,但我不断收到此函数不存在的错误.

Uncaught TypeError: this.refs.todayKpi.loadTodaysKpi is not a function

父组件:

class KpisHeader extends React.Component {

  constructor() {
    super();
    this.onUpdate = this.onUpdate.bind(this);
  }
    render(){
        return <div>
            <DateRange ref="dateRange" onUpdate={this.onUpdate}/>
            <TodayKpi ref="todayKpi" {...this.state}/>
          </div>;
    }

  onUpdate(val){

      this.setState({
          startDate: val.startDate,
          endDate: val.endDate
      }, function(){
        this.refs.todayKpi.loadTodaysKpi();
      });
  } 
 }

我想通过函数onUpdate从DateRange组件中获取一些数据,然后我想在TodayKpi中触发一个从服务器获取数据的函数.现在它只是console.log("AAA");.

子组件:

class TodayKpi extends React.Component {
    constructor() {
        super();
        this.loadTodaysKpi = this.loadTodaysKpi.bind(this);
    }

    render(){
        console.log(this.props.startDate + " "+ this.props.endDate);
        return <div className="today-kpi">


          </div>;
    }
    loadTodaysKpi(){
        console.log("AAAA");
    }
}

我该如何实现呢？