本文实例讲述了JavaScript基于面向对象实现的无缝滚动轮播。分享给大家供大家参考，具体如下：
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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希望本文所述对大家JavaScript程序设计有所帮助。