日期:2014-05-16 浏览次数:20529 次
<!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=gbk" /> <title>运动框架(面向对象版)</title> <style> body,div{margin:0;padding:0;} #wrap{width:500px;margin:10px auto;} .box{position:relative;height:100px;border:1px solid #666;margin-top:10px;} .box span{position:absolute;top:10px;left:10px;width:20px;height:20px;background:#999;display:block;opacity:1;} </style> <script type="text/javascript"> //面向对象版运动框架 var Animate = function (oElement, options, callback) {this.initialize.apply(this, arguments)}; Animate.prototype = { initialize: function (oElement, options, callback) { var oThis = this; this.options = options; this.callback = callback; this.oElement = typeof oElement === "string" ? document.getElementById(oElement) : oElement; clearInterval(this.timer); this.timer = setInterval(function () { oThis.doMove() }, 30) }, css: function (attr, value) { if (arguments.length == 1) { return parseFloat(this.oElement.currentStyle ? this.oElement.currentStyle[attr] : getComputedStyle(this.oElement, null)[attr]) } else if (arguments.length == 2) { attr == "opacity" ? (this.oElement.style.filter = "alpha(opacity=" + value + ")", this.oElement.style.opacity = value / 100) : this.oElement.style[attr] = value + "px" } }, doMove: function () { var opt = this.options; var bComplete = true; for (var p in opt) { var iCur = p == "opacity" ? parseInt(this.css(p).toFixed(2) * 100) : this.css(p); var iSpeed = (opt[p] - iCur) / 5; iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed); opt[p] == iCur || (bComplete = false, this.css(p, iCur + iSpeed)) } bComplete && (clearInterval(this.timer), this.callback && this.callback.call(this)) } }; //运动框架应用 window.onload = function () { var oSpan = document.getElementsByTagName("span")[0]; var oInp