js手风琴代码
html部分
<body> <div class="wrap"> <div class='tab' id='tab'> <div class='tabbd'> <dl class='selected'> <dt><a href='javascript:'><img src='images/pic01.jpg' width="400" height="225"/></a></dt> <dd>第一张图片</dd> </dl> <dl> <dt><a href='javascript:'><img src='images/pic02.jpg' width="400" height="225"/></a></dt> <dd>第二张图片</dd> </dl> <dl> <dt><a href='javascript:'><img src='images/pic03.jpg' width="400" height="225"/></a></dt> <dd>第三张图片</dd> </dl> <dl> <dt><a href='javascript:'><img src='images/pic04.jpg' width="400" height="225"/></a></dt> <dd>第四张图片</dd> </dl> <dl> <dt><a href='javascript:'><img src='images/pic05.jpg' width="400" height="225"/></a></dt> <dd>第五张图片</dd> </dl> </div> </div> </div> <script type='text/javascript' src='./js/startMove.js'></script> <script type='text/javascript' src='./js/index.js'></script> <script type='text/javascript'> window.onload = function(){ fnSlide({slide:"tab",mainCell:"tabbd"}); } </script> </body>
css部分
html,body,pre,hr,div,p,ul,ol,li,dl,dt,dd,img,a,span,em,h1,h2,h3,h4,h5,h6{ margin:0px; padding:0px; } body{font-size:12px;font-family:"Microsoft YaHei"; background-color:#333;} img{border:0; display:block;} ul,li{list-style:none;} .wrap{height:225px; width:525px; margin:50px auto; overflow:hidden;} #tab{height:225px; width:525px; position:relative; overflow:hidden;} .tabbd dl{width:425px;height:225px; position:absolute; top:0px; display:none;} .tabbd dl.selected{display:block;} .tabbd dl dt{width:400px;height:225px;position:absolute;top:0px;left:0px;} .tabbd dl dd{color:#fff; font-size:14px; width:25px; height:190px; cursor:pointer; position:absolute;top:0px;right:0px;text-align:center; background:red; padding-top:35px;}
startMove.js 一个运动框架
function startMove(obj,json,times,fx,fn){ var iCur = {}; var startTime = now(); for(var attr in json){ iCur[attr] = 0; if(attr == 'opacity'){ iCur[attr] = Math.round(getStyle(obj,attr)*100); } else{ iCur[attr] = parseInt(getStyle(obj,attr)); } } clearInterval(obj.timer); obj.timer = setInterval(function(){ var changeTime = now(); var scale = 1 - Math.max(0,startTime - changeTime + times)/times ; for(var attr in json){ var value = Tween[fx](scale*times ,iCur[attr] , json[attr] - iCur[attr] , times ); if(attr == 'opacity'){ obj.style.filter = 'alpha(opacity='+value+')'; obj.style.opacity = value/100; } else{ obj.style[attr] = value + 'px'; } } if(scale == 1){ clearInterval(obj.timer); if(fn){ fn.call(obj); } } },13); function now(){ return (new Date()).getTime(); } } function getStyle(obj,attr){ if(obj.currentStyle){ return obj.currentStyle[attr]; } else{ return getComputedStyle(obj,false)[attr]; } } var Tween = { //t : 当前时间 b : 初始值 c : 变化值 d : 总时间 //return : 当前的位置 linear: function (t, b, c, d){ //匀速 return c*t/d + b; }, easeIn: function(t, b, c, d){ //加速曲线 return c*(t/=d)*t + b; }, easeOut: function(t, b, c, d){ //减速曲线 return -c *(t/=d)*(t-2) + b; }, easeBoth: function(t, b, c, d){ //加速减速曲线 if ((t/=d/2) < 1) { return c/2*t*t + b; } return -c/2 * ((--t)*(t-2) - 1) + b; }, easeInStrong: function(t, b, c, d){ //加加速曲线 return c*(t/=d)*t*t*t + b; }, easeOutStrong: function(t, b, c, d){ //减减速曲线 return -c * ((t=t/d-1)*t*t*t - 1) + b; }, easeBothStrong: function(t, b, c, d){ //加加速减减速曲线 if ((t/=d/2) < 1) { return c/2*t*t*t*t + b; } return -c/2 * ((t-=2)*t*t*t - 2) + b; }, elasticIn: function(t, b, c, d, a, p){ //正弦衰减曲线（弹动渐入） if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } if (!a || a < Math.abs(c)) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; }, elasticOut: function(t, b, c, d, a, p){ //正弦增强曲线（弹动渐出） if (t === 0) { return b; } if ( (t /= d) == 1 ) { return b+c; } if (!p) { p=d*0.3; } if (!a || a < Math.abs(c)) { a = c; var s = p / 4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b; }, elasticBoth: function(t, b, c, d, a, p){ if (t === 0) { return b; } if ( (t /= d/2) == 2 ) { return b+c; } if (!p) { p = d*(0.3*1.5); } if ( !a || a < Math.abs(c) ) { a = c; var s = p/4; } else { var s = p/(2*Math.PI) * Math.asin (c/a); } if (t < 1) { return - 0.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b; } return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*0.5 + c + b; }, backIn: function(t, b, c, d, s){ //回退加速（回退渐入） if (typeof s == 'undefined') { s = 1.70158; } return c*(t/=d)*t*((s+1)*t - s) + b; }, backOut: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 3.70158; //回缩的距离 } return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b; }, backBoth: function(t, b, c, d, s){ if (typeof s == 'undefined') { s = 1.70158; } if ((t /= d/2 ) < 1) { return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b; } return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b; }, bounceIn: function(t, b, c, d){ //弹球减振（弹球渐出） return c - Tween['bounceOut'](d-t, 0, c, d) + b; }, bounceOut: function(t, b, c, d){ if ((t/=d) < (1/2.75)) { return c*(7.5625*t*t) + b; } else if (t < (2/2.75)) { return c*(7.5625*(t-=(1.5/2.75))*t + 0.75) + b; } else if (t < (2.5/2.75)) { return c*(7.5625*(t-=(2.25/2.75))*t + 0.9375) + b; } return c*(7.5625*(t-=(2.625/2.75))*t + 0.984375) + b; }, bounceBoth: function(t, b, c, d){ if (t < d/2) { return Tween['bounceIn'](t*2, 0, c, d) * 0.5 + b; } return Tween['bounceOut'](t*2-d, 0, c, d) * 0.5 + c*0.5 + b; } }
index.js
var fnSlide = function(opts){ var slide = opts.slide||"slide"; var mainCell = opts.mainCell||"mainCell"; var ele = document.getElementById(slide); var dom = getClass(ele,mainCell)[0]; var odl = dom.getElementsByTagName("dl"); var odt = dom.getElementsByTagName("dt"); var odd = dom.getElementsByTagName("dd"); var arrColor = ['red','blue','green','pink','#add']; var moveW = parseInt( getStyle(odt[0],"width") ); var len = odt.length; var iNow = 0; for(var i=0;i<len;i++){ odl[i].style.display = "block"; odl[i].style.left = (25*i)+"px"; odd[i].style.backgroundColor = arrColor[i]; odl[i].style.zIndex = len-i; } var fnOver = function(){ for(var i=0;i<len;i++){ if( i<this.index ){ startMove(odl[i],{ left:-moveW+i*25 },450,'easeOut'); }else{ startMove(odl[i],{ left:i*25 },450,'easeOut'); } } } for( var i=0;i<len;i++ ){ odd[i].index = i; odd[i].onmouseover = fnOver; } }; function getClass(obj,aClass){ var dom = obj.getElementsByTagName("*"); var Result = []; for(var i=0;i<dom.length;i++){ var aClassName = dom[i].className.split(" "); for(var j=0;j<aClassName.length;j++){ if( aClassName == aClass ){ Result.push( dom[i] ); break; } } } return Result; }; function getStyle(obj,attr){ var v; if(obj.currentStyle){ v = obj.currentStyle[attr]; }else{ v = getComputedStyle(obj,false)[attr]; } return v.replace("px",""); };
查看效果:http://www.milanw.com/play/2014/13/03/index.html
