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marquee of react
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import React, { Component } from 'react' | |
import $ from 'jquery' | |
import nl2br from 'react-nl2br' | |
export default class MarueeMessage extends Component { | |
autoScrollStart() { | |
$("div.maruee").css('position', 'relative') | |
let text_height = $("div.maruee p#first").height() | |
if (text_height > $("div.display-area").height()) { | |
if (!$('div.maruee').is(':animated')) { | |
$("div.maruee").css('top', 0) | |
$("div.maruee p#second").show() | |
$('div.maruee').animate( | |
{ | |
top : -(text_height+30) | |
}, | |
{ | |
duration: (text_height) * 60, | |
easing: 'linear', | |
complete: () => {this.autoScrollStart()} | |
} | |
) | |
} | |
} else { | |
$("div.maruee").stop().css('top', '') | |
$("div.maruee p#second").hide() | |
} | |
} | |
componentDidMount() { | |
this.autoScrollStart() | |
} | |
componentDidUpdate(prevProps, prevState) { | |
this.autoScrollStart() | |
} | |
componentWillUnmount() { | |
$("div.maruee").stop().css('top', '') | |
} | |
render() { | |
const { messages } = this.props | |
return( | |
<div className="display-area" style={{overflow: 'hidden'}}> | |
<div className="maruee"> | |
<p id="first"> | |
{nl2br(messages)} | |
</p> | |
<p id="second" style={{marginTop: 30}}> | |
{nl2br(messages)} | |
</p> | |
</div> | |
</div> | |
) | |
} | |
} |
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