React的DOM操作

鸣谢：http://blog.csdn.net/dahuzix/article/details/70186397

refs可以拿子子组件的props/state/方法；
findDOMNOde拿到的是原生的标签相关属性；

import { findDomNode } from 'react-dom';
let initialNode  =  findDomNode(this.refs.navBox);

getNodeInstance() {
    const nodeInstance = this.refs.navBox;
}    
function WapShop() {
    return (
        <div>
              <NavBox ref="navBox" />
        </div>
    );
}

方法1：

let senderName = ReactDOM.findDOMNode(this.refs['sender-name']);
let nleft = senderName.style.left;
let ntop = senderName.style.top;
let nwidth = senderName.style.width;
let nheight = senderName.style.height;
console.log(nleft,ntop,nwidth,nheight);

方法2：

let rstyle = this.refs['sender-name'].style;
let rleft = rstyle.left;
let rtop = rstyle.top;
let rwidth = rstyle.width;
let rheight = rstyle.height;
console.log(rleft,rtop,rwidth,rheight);

方法3：

let computedStyle=document.defaultView.getComputedStyle(ReactDOM.findDOMNode(this.refs['sender-name']),null);
let cleft = computedStyle.left;
let ctop = computedStyle.top;
console.log(cleft,ctop);