JS模拟酷狗音乐播放器的关闭特效

2024-09-05 12:18:29

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酷狗音乐播放器的关闭特效，采用JavaScript实现，关闭的时候播放界面缩成一条线，然后消失，就像有些电视机突然停电的效果，有意思的网页动画特效。

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>酷狗音乐播放器的关闭特效，采用JavaScript实现</title><style type="text/css">* {	padding:0px;	margin:0px;}#outer {	width:952px;	height: 640px;	position:absolute;	left:100px;	top:20px; }#div1 {	width:952px;	height: 640px;	overflow:hidden; 	position:absolute;font-size:0px;	}#div1 a {	position:absolute;	width:23px;	height:21px;	right:5px;	top:5px;	display:block; z-index:100; background:url(/jscss/demoimg/201211/kugou.jpg) no-repeat 957px 645px;}#div1 a:hover {	background:url(/jscss/demoimg/201211/hover.jpg) no-repeat right top;}#line {	height:3px;	width:952px;	display:none;	z-index:100;	position:absolute;	left:0px;	top:0px; font-size:0px;}#light{ /*width:50px; height:10px;*/  position:absolute; left:50%; top:50%;/* margin-left:-25px; margin-top:-5px;*/  width:0px; height:0px; filter:alpha(opacity:0);opacity:0;); overflow:hidden;}</style><script type="text/javascript">function css(obj, attr, value){	if(arguments.length==2)	{		if(attr!='opacity')		{			return parseInt(obj.currentStyle?obj.currentStyle[attr]:document.defaultView.getComputedStyle(obj, false)[attr]);		}		else		{			return Math.round(100*parseFloat(obj.currentStyle?obj.currentStyle[attr]:document.defaultView.getComputedStyle(obj, false)[attr]));		}	}	else if(arguments.length==3)		switch(attr)		{			case 'width':			case 'height':			case 'paddingLeft':			case 'paddingTop':			case 'paddingRight':			case 'paddingBottom':			value=Math.max(value,0);			case 'left':			case 'top':			case 'marginLeft':			case 'marginTop':			case 'marginRight':			case 'marginBottom':				obj.style[attr]=value+'px';				break;			case 'opacity':				obj.style.filter="alpha(opacity:"+value+")";				obj.style.opacity=value/100;				break;			default:				obj.style[attr]=value;		}		return function (attr_in, value_in){css(obj, attr_in, value_in)};}var MIAOV_MOVE_TYPE={	BUFFER: 1,	FLEX: 2};//jsonfunction miaovStopMove(obj){	clearInterval(obj.timer);}function miaovStartMove(obj, oTarget,iSpeedCtrol, iType, fnCallBack, fnDuring){	var fnMove=null;	if(obj.timer)	{		clearInterval(obj.timer);	}		switch(iType)	{		case MIAOV_MOVE_TYPE.BUFFER:			fnMove=miaovDoMoveBuffer;			break;		case MIAOV_MOVE_TYPE.FLEX:			fnMove=miaovDoMoveFlex;			break;	}		obj.timer=setInterval(function (){		fnMove(obj, oTarget,iSpeedCtrol, fnCallBack, fnDuring);	}, 30);}function miaovDoMoveBuffer(obj, oTarget,iSpeedCtrol, fnCallBack, fnDuring){	var bStop=true;	var attr='';	var speed=0;	var cur=0;		for(attr in oTarget)	{		cur=css(obj, attr);		if(oTarget[attr]!=cur)		{			bStop=false;						speed=(oTarget[attr]-cur)/iSpeedCtrol;			speed=speed>0?Math.ceil(speed):Math.floor(speed);						css(obj, attr, cur+speed);		}	}		if(fnDuring)fnDuring.call(obj);		if(bStop)	{		clearInterval(obj.timer);		obj.timer=null;				if(fnCallBack)fnCallBack.call(obj);	}}function miaovDoMoveFlex(obj, oTarget,iSpeedCtrol, fnCallBack, fnDuring){	var bStop=true;	var attr='';	var speed=0;	var cur=0;		for(attr in oTarget)	{		if(!obj.oSpeed)obj.oSpeed={};		if(!obj.oSpeed[attr])obj.oSpeed[attr]=0;		cur=css(obj, attr);		if(Math.abs(oTarget[attr]-cur)>=1 || Math.abs(obj.oSpeed[attr])>=1)		{			bStop=false;						obj.oSpeed[attr]+=(oTarget[attr]-cur)/iSpeedCtrol;			obj.oSpeed[attr]*=0.7;						css(obj, attr, cur+obj.oSpeed[attr]);		}	}	if(fnDuring)fnDuring.call(obj);		if(bStop)	{		clearInterval(obj.timer);		obj.timer=null;				if(fnCallBack)fnCallBack.call(obj);	}}</script><script type="text/javascript">window.onload=function(){  var oDiv1 = document.getElementById('div1'); 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height:0px;"/></div>  <div id="div1">     <img id="img1" src="http://www.aspku.com/jscss/demoimg/201211/kugou.jpg" style="height:640px; width:952px; z-index:-3;"/>         <div id="line">      <img id="img2" src="http://www.aspku.com/jscss/demoimg/201211/line.png" style=" width:952px; height:3px;" />     </div>  </div></div></body></html>

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