<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>图片上下轮播 插件</title>
<link rel="stylesheet" type="text/css" href="reset.css">
<style type="text/css">
/* 设置一些基本样式 */
/* 很多小的位置问题都在style里设置 */
#xc-banner{
position: relative;
margin: 0 auto;
}
#xc-banner img{
float: left;
}
#xc-banner ul li{
overflow: hidden;
}
#xc-banner .hor{
position: absolute;
left: 50%;
bottom: 15px;
margin-left: -52px;
}
#xc-banner .hor li{
width: 15px;
height: 15px;
background-color: #fff;
float: left;
border-radius: 15px;
margin: 0 3px;
cursor: pointer;
}
#xc-banner .hor li.active{
background-color: #f60;
}
#xc-banner .ver{
position: absolute;
right: 20px;
top: 20px;
width: 20px;
}
#xc-banner .ver li{
width: 15px;
height: 15px;
background-color: #fff;
float: left;
margin: 3px 0px;
cursor: pointer;
}
#xc-banner .ver li.active{
background-color: #f60;
}
.xc-banner a{
position: absolute;
width: 40px;
height: 40px;
display: inline-block;
background-color: red;
top: 50%;
margin-top: -20px;
}
.xc-banner .left {
left: 20px;
}
.xc-banner .right {
right: 20px;
}
#xc-banner1{
position: relative;
margin: 0 auto;
}
#xc-banner1 img{
float: left;
}
#xc-banner1 ul li{
overflow: hidden;
}
#xc-banner1 .hor{
position: absolute;
left: 50%;
bottom: 15px;
margin-left: -52px;
}
#xc-banner1 .hor li{
width: 15px;
height: 15px;
background-color: #fff;
float: left;
border-radius: 15px;
margin: 0 3px;
cursor: pointer;
}
#xc-banner1 .hor li.active{
background-color: #f60;
}
#xc-banner1 .ver{
position: absolute;
right: 20px;
top: 20px;
width: 20px;
}
#xc-banner1 .ver li{
width: 15px;
height: 15px;
background-color: #fff;
float: left;
margin: 3px 0px;
cursor: pointer;
}
#xc-banner1 .ver li.active{
background-color: #f60;
}
.xc-banner1 a{
position: absolute;
width: 40px;
height: 40px;
display: inline-block;
background-color: red;
top: 50%;
margin-top: -20px;
}
.xc-banner1 .left {
left: 20px;
}
.xc-banner1 .right {
right: 20px;
}
</style>
</head>
<body>
<div id="xc-banner">
<ul>
<li>
<a href="#"><img src="images/11.jpg"></a>
</li>
<li>
<a href="#"><img src="images/12.jpg"></a>
</li>
<li>
<a href="#"><img src="images/13.jpg"></a>
</li>
<li>
<a href="#"><img src="images/14.jpg"></a>
</li>
<li>
<a href="#"><img src="images/15.jpg"></a>
</li>
</ul>
</div>
<div id="xc-banner1">
<ul>
<li>
<a href="#"><img src="images/11.jpg"></a>
</li>
<li>
<a href="#"><img src="images/12.jpg"></a>
</li>
<li>
<a href="#"><img src="images/13.jpg"></a>
</li>
<li>
<a href="#"><img src="images/14.jpg"></a>
</li>
<li>
<a href="#"><img src="images/15.jpg"></a>
</li>
</ul>
</div>
<script type="text/javascript">
var bannerGroup = {
arr : [], //创建数组
// 初始化参数
init : function (ops){
this.arr[ops.id] = {
id:ops.id,
direction : ops.direction || "hor",// 方向 默认hor
button : ops.button||'true',// 按钮 默认为true
index : 0,
isTime : ops.isTime || 'true',
time : ops.time || 3000
}
this.show(this.arr[ops.id]);
},
show : function(obj){
var that = this;
obj.banner = document.getElementById(obj.id);
obj.banner.onmouseover = function (){
clearInterval(obj.timer);
}
obj.banner.onmouseout = function (){
that.setTime(obj);
}
obj.banner.style.overflow = "hidden";
obj.ul = obj.banner.getElementsByTagName("ul")[0];
obj.list = obj.ul.getElementsByTagName("li");
obj.img = obj.banner.getElementsByTagName("img");
obj.maxlength = obj.list.length;
// 设置宽度高度
obj.banner.style.width = obj.img[0].offsetWidth + "px";
obj.banner.style.height = obj.img[0].offsetHeight + "px";
// 横向怎么办
if (obj.direction == "hor") {
obj.ul.style.width = obj.img[0].offsetWidth * obj.img.length + "px";
for( var i = 0 ; i < obj.list.length ; i ++ ){
obj.list[i].style.float = "left";
}
// 横向且 button 为true 创建button
if (obj.button == "true") {
this.createButtons(obj);
}
}
this.createList(obj);
this.bgclick(obj);
if (obj.isTime == "true") {
this.setTime(obj);
}
},
// 创建小导航 classname 为 id
createList : function (obj){
obj.listUl = document.createElement("ul");
obj.listUl.className = obj.direction;
for( var i = 0 ; i < obj.maxlength ; i ++ ){
var li = document.createElement("li");
obj.listUl.appendChild(li);
}
obj.banner.appendChild(obj.listUl);
this.changeIndex(obj);
},
// 左右按钮 创建
createButtons : function (obj){
var div = document.createElement("div");
div.className = obj.id;
var a1 = document.createElement("a");
a1.className = "left";
var a2 = document.createElement("a");
a2.className = "right";
div.appendChild(a1);
div.appendChild(a2);
obj.buttons = div;
obj.banner.appendChild(obj.buttons);
this.btnclick(obj);
},
// 左右按钮事件绑定
btnclick : function (obj){
var that = this;
var a = obj.buttons.getElementsByTagName("a");
console.log(a);
a[0].onclick = function (){
obj.index -- ;
if (obj.index < 0 ) {
obj.index = obj.maxlength - 1;
}
that.changeIndex(obj);
}
a[1].onclick = function (){
obj.index ++ ;
if (obj.index >= obj.maxlength) {
obj.index = 0;
}
that.changeIndex(obj);
}
},
// 改变位置
changeIndex : function (obj){
var list = obj.listUl.getElementsByTagName("li");
for ( var i = 0 ; i < list.length ; i ++ ){
list[i].className = "";
}
list[obj.index].className = "active";
this.changeMargin(obj);
},
// 小导航点击事件绑定
bgclick : function (obj){
var that = this;
var list = obj.listUl.getElementsByTagName("li");
for ( var i = 0 ; i < list.length ; i ++ ){
list[i].index = i ;
list[i].onclick = function (){
obj.index = this.index;
that.changeIndex(obj);
}
}
},
// 改变位置 hor 改变 marginLeft 其他改变 marginTtop
changeMargin : function (obj){
clearInterval(obj.listTimer);
var target = obj.direction == "hor"?- obj.img[0].offsetWidth * obj.index:- obj.img[0].offsetHeight * obj.index;
obj.listTimer = setInterval(function (){
var speed = obj.direction == "hor"?(target - obj.ul.offsetLeft)/8:(target - obj.ul.offsetTop)/8;
speed = speed > 0 ? Math.ceil(speed) : Math.floor(speed);
if (obj.direction == "hor") {
obj.ul.style.marginLeft = obj.ul.offsetLeft + speed + "px";
if (obj.ul.offsetLeft == target) {
clearInterval(obj.listTimer);
}
}else{
obj.ul.style.marginTop = obj.ul.offsetTop + speed + "px";
if (obj.ul.offsetTop == target) {
clearInterval(obj.listTimer);
}
}
},30)
},
// 定时器 默认的是3000
setTime : function (obj){
var that = this;
obj.timer = setInterval(function(){
obj.index ++;
if (obj.index >= obj.maxlength) {
obj.index = 0;
}
that.changeIndex(obj);
},obj.time)
}
}
window.onload = function (){
// 使用方法
// id 为必传, 简单设置一下style 即可使用
//direction 两个参数 hor 为横向 ver 为纵向
// isTime 和button 分别有两个参数 'true' 、'false' 意思是 开启定时器 和 创建左右按钮，其中 direction 为hor 不能创建按钮 默认值都为true
// time 时间 单位毫秒，默认值为3000 与isTime 配合使用
bannerGroup.init({id:"xc-banner",direction :"ver",time:1000});
bannerGroup.init({id:"xc-banner1",direction :"hor",button:'true',isTime : "false"});
}
</script>
</body>
</html>
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