无缝轮播 面向对象
一、HTML及CSS部分同前文《原生JavaScript实现的无缝滚动功能》。
JavaScript面向对象部分如下：
function Seamless(obj) { this.obj = document.getElementById(obj); this.oXSlide = GLOBAL.Dom.getElementsByClassName('J_XSlide', this.obj)[0]; this.li = this.oXSlide.getElementsByTagName('li'); this.liTabs = GLOBAL.Dom.getElementsByClassName('tabs', this.obj)[0].getElementsByTagName('li'); this.iNow = 0; this.timer = null; this.playTime = 2000; this.init(); } Seamless.prototype = { // 初始化 init: function() { var _this = this; this.timer = setInterval(function(){ _this.autoPlay(); }, this.playTime); this.overOut(); this.tab(); }, tab: function() { var _this = this; var btn = GLOBAL.Dom.getElementsByClassName('btn', this.obj); this.oXSlide.style.width = this.li.length * this.li[0].offsetWidth + 'px'; for(var i = 0, len = this.liTabs.length; i < len; i++) { this.liTabs[i].index = i; GLOBAL.Event.addHandler(this.liTabs[i], 'mouseover', function() { _this.showItem(this.index); }); } GLOBAL.Event.addHandler(btn[0], 'click', function() { _this.moveLeft(); }); GLOBAL.Event.addHandler(btn[1], 'click', function() { _this.moveRight(); }); }, // 移入移出时，轮播暂停与开始 overOut: function() { var _this = this; GLOBAL.Event.addHandler(this.obj, 'mouseover', function() { clearInterval(_this.timer); }); GLOBAL.Event.addHandler(this.obj, 'mouseout', function() { _this.timer = setInterval(function() { _this.autoPlay(); }, _this.playTime); }); }, autoPlay: function() { this.moveRight(); }, // 选项卡 showItem:function (n) { for(var i = 0, len = this.liTabs.length; i < len; i++) { this.liTabs[i].className = 'tab'; } if(n == this.liTabs.length) { this.liTabs[0].className = 'tab cur'; } else { this.liTabs[n].className = 'tab cur'; } startMove(this.oXSlide, {'left': -n * this.li[0].offsetWidth}); }, moveLeft:function () { this.iNow--; if(this.iNow == -1) { this.oXSlide.style.left = -this.liTabs.length * this.li[0].offsetWidth + 'px'; this.iNow = this.liTabs.length - 1; } this.showItem(this.iNow); }, moveRight:function () { this.iNow++; if(this.iNow == this.li.length) { this.oXSlide.style.left = 0; this.iNow = 1; } this.showItem(this.iNow); } }; new Seamless('box');
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