funAreaSelect.js
1.19 KB
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import React, { Component } from "react"
import AreaSelect from "../areaSelete/areaSelete"
import "./funAreaSelect.css"
export default class FlvCom extends Component {
constructor(props){
super(props);
this.state = {
serviceData:[],
}
}
static getDerivedStateFromProps(props){
return null;
}
componentDidUpdate(){
}
componentDidMount(){
var canvasEl = document.getElementById(this.myRef.state.id)
canvasEl.onclick = (e)=>{
var left = e.layerX;
var top = e.layerY;
let {serviceData} = this.state;
serviceData.push([left,top])
this.setState({
serviceData
},()=>{
this.myRef.draw()
})
}
canvasEl.oncontextmenu = (e)=>{
console.log(e.button)
e.preventDefault()
}
}
change(){
}
render() {
let {serviceData} = this.state;
return (
<div className="funAreaSelectCss">
<AreaSelect ref={(inst) => { this.myRef = inst } } serviceData={serviceData} change={(val)=>this.change(val)}></AreaSelect>
</div>
)
}
}