h5轮播组件 Yslider

本文主要介绍一款简单的h5 slider –Yslider, 采用原生js书写,使用于任何js框架
支持视频播放
slider

Yslider 参数

Yslider 参数以对象形式传入
1、target: Slier 容器 DOM 的 id 属性, 必填, 类型 string
2、interval: 图片切换间隔时间, 非必填, 类型 number, 单位 s(秒), defualt 3s
3、showCircle: 是否显示圆点导航, 非必填, 类型 boolean, default true
4、circleColor: 圆点颜色, 非必填, 类型 颜色(string), default ‘#00F5FF’
5、imgArray: 图片列表, 必填, 类型 array

  • redirect: 点击图片跳转地址, 非必填, 类型 url(string), 播放视频时为视频地址
  • url: 图片地址, 必填, 类型 url(string)
  • type: 类型(string), 选填, 默认按图片处理, 如果是播放视频, type 为 video
  • detail: 图片介绍, 放在 alt 属性中, 非必填,类型 string

Yslider 使用

注意: 推荐使用 yslider 3.x 版本, 3.x 版本需要依赖组件 video.js, 更好支持视频播放
1、在html 标签中定一个 slider 元素用于容纳图片列表, 并定义好slider容器的尺寸

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<style>
.page-wrap .slider { //
height: 25rem; //定义容器高度,
width: 100%; //容器宽度
overflow: hidden; //超出不显示
}
</style>
//yslider 3.x 版本需要 video-js.min.css
<link rel="stylesheet" href="{{ STATIC_URL }}js/video/video-js.min.css" />
<div class="page-wrap">
<div id="slider" class="slider"> //slider 容器标签 一定包含id 属性
</div>
</div>
//yslider 3.x 版本需要 video.js
<script src="{{ STATIC_URL }}js/video/video.min.js"></script>
//引入 yslider
<script src="/static/common/slider/slider-1.0.js"></script> <!--引入 slider-->

2、使用slider

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<script>
(function(win) {
imgArray = [
{redirect: '', url: '/static/images/slider1.jpg', detail: 'img1'},
{redirect: '', url: '/static/images/slider2.jpg', detail: 'img2'},
{redirect: '', url: '/static/images/slider3.jpg', detail: 'img3'},
{redirect: 'http://www.runoob.com/try/demo_source/movie.mp4', url: '/static/images/slider4.jpg', type: "video", detail: 'img4'}
] //准备图片列表, redirect 为点击图片跳转链接, url 为图片下载地址, detail: 为图片说明
Yslider({ //初始化 yslider
target: 'slider', //slider 容器id
interval: 2, //图片切换间隔时间, 单位s, default 3s
imgArray: imgArray, //图片列表
showCircle: true, //是否显示圆点导航
circleColor: '#00C5CD', //圆点导航颜色
})
})(window);
</script>

Yslider 源码

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/**
* author: feifeiyu
* version: 2.3
* Yslider is a simple images slider for h5
* @param target //slider container id
* @param interval // images change interval, s, default 3s
* @param imgArray // images list, include properties: redirect, type, url, detail
* @param showCircle //show circle nav, dafault true
* @param circleColor: //circle background-color
* yslider blog: https://feifeiyum.github.io/2016/10/30/yslider/
*/
var Yslider = (function() {
var imgsNode = '' //图片wrap
var circlesNode = '' //圆点 dom
var conWidth = '' // 图片宽度
var circleColor = '' //圆点颜色
var interval = '' //间隔时间
var intervalFlag = null //setInterval 值
var currentIndex = 0 //当前页面编号
var imgLength = ''
var ysGenDom = function(opt) {
var container = document.getElementById(opt.target)
if(!container) {
throw '[error]: Yslider - can not find slider container DOM'
}
conWidth = container.clientWidth //slider width
imgLength = opt.imgArray.length
//检查 imgArray 有效性
for(var i = 0; i < imgLength; i++) {
if(!opt.imgArray[i].url) {
opt.imgArray.splice(i, 1)
imgLength -= 1
i -= 1
}
}
//生成slider dom 字符串
var sliderNode = '<div id="yslider-wrap" class="yslider-wrap"'
+ 'style="position: relative; width: 100%; height: 100%; overflow: hidden;">'
+ '<ul id="yslider-imglist" class="yslider-imglist" style="position: relative;margin: 0; padding: 0; height: 100%; transition: all 0.5s; width: ' +( conWidth * (imgLength * 2) ) + 'px;">'
var sliderItems = ''
for(var i = 0; i < 2 * imgLength; i++) {
var index = i % imgLength
if(opt.imgArray[index].type === 'video') {
sliderItems += '<li style="display: inline-block; height: 100%; width: ' + conWidth + 'px;">'
+ '<img\ v-url="' + opt.imgArray[index].redirect + '" src="' + opt.imgArray[index].url + '"\ alt="' + opt.imgArray[index].detail + '"\ style="width: 100%;">'
+ '<button class="video-play" v-url="' + opt.imgArray[index].redirect + '" style="position:absolute; top:35%; left:' + conWidth*(i+0.4)+ 'px; border: 2px solid #fff; border-radius: 50%; background: rgba(43, 51, 63, 0.6); height: 60px; width: 60px; "><div v-url="' + opt.imgArray[index].redirect + '" style="position:relative;left:16px;width:0;height:0;transform: rotate(45deg);border:8px solid;border-color: #fff #fff transparent transparent;"></div></button>'
+ '</li>'
} else {
sliderItems += '<li style="display: inline-block; height: 100%; width: ' + conWidth + 'px;">'
+ (opt.imgArray[index].redirect ? '<a\ href="' + opt.imgArray[index].redirect + '">' : '<a>')
+ '<img\ src="' + opt.imgArray[index].url + '"\ alt="' + opt.imgArray[index].detail + '"\ style="width: 100%;">'
+ '</a></li>'
}
if(imgLength === 1) {
break
}
}
sliderNode += sliderItems
if(opt.showCircle && imgLength > 1) {
sliderNode += '</ul><ul class="ysclider-circles" style="position: relative; bottom: 30px; margin: auto; width:'+ (18 * imgLength) +'px;">'
for(var i=0; i<imgLength; i++) {
sliderNode += '<li style="margin-right: 5px; display: inline-block;">'
+ '<span class="ysclider-circle" style="display: block; width: 10px; height: 10px; border: 1px solid #ddd; border-radius: 50%; background: transparent;"></span></li>'
}
}
sliderNode += '</ul></div>'
container.innerHTML = sliderNode
}
//初始化函数
var ysInit = function(cColor, showCircle, inval) {
imgsNode = document.getElementById('yslider-imglist')
if(showCircle) {
circlesNode = document.getElementsByClassName('ysclider-circle')
circleColor = cColor || '#00F5FF'
//初始化,第一个园点加上样式
if(circlesNode.length > 0) {
circlesNode[0].style.backgroundColor = circleColor
circlesNode[0].style.borderColor = circleColor
}
}
interval = (inval * 1000) || 3000
}
//图片切换函数
var ysChangeImg = function(index) {
if(imgLength === 1) {
return
}
if(index == 'next') {
currentIndex ++
} else if(index == 'prev') {
currentIndex --
} else {
currentIndex = index
}
currentIndex = currentIndex < 0 ? (imgLength * 2 - 1) : (currentIndex % (imgLength * 2))
var circleIndex = currentIndex % imgLength
//移动图片
imgsNode.style.marginLeft = '-' + (currentIndex * conWidth) + 'px'
//圆点
if(circlesNode) {
for(var i = 0; i < imgLength; i++) {
if(circleIndex === i) {
circlesNode[i].style.backgroundColor = circleColor
circlesNode[i].style.borderColor = circleColor
} else {
circlesNode[i].style.backgroundColor = ''
circlesNode[i].style.borderColor = '#ddd'
}
}
}
}
//视频播放
var ysPlayVideo = function(vsrc) {
var yslider = document.getElementById('yslider-wrap')
var coverTag, closeTag, videoTag, vSource
//播放器关闭
var closeVideo = function() {
//销毁播放器
yslider.removeChild(coverTag)
}
//生成播放器元素
var genVTage = function() {
coverTag = document.createElement('div')
coverTag.id = 'yslider-cover'
coverTag.style.cssText = 'position: fixed;'
+ 'top:0;left:0; width:100%;height:100%;background:rgba(0,0,0,0.8);z-index:2000;'
closeTag = document.createElement('div')
closeTag.id = 'yslider-closev'
closeTag.style.cssText = 'position:absolute;'
+ 'margin: 5px;'
+ 'top:0;right:0;height:30px;width:30px;border-radius:50%;background:#fff;color:#000;'
+ 'font-size:20px;text-align:center;font-family:sans-serif;'
closeTag.innerHTML = 'X'
videoTag = document.createElement('video')
videoTag.id = 'yslider-video'
videoTag.autoplay = 'true'
videoTag.controls = 'true'
videoTag.style.cssText = 'position: relative;'
+ 'top:25%;'
+ 'width:' + conWidth + 'px;height:auto;max-height:' + conWidth + 'px;'
vSource = document.createElement('source')
vSource.src = vsrc
vSource.type = 'video/mp4'
videoTag.appendChild(vSource)
coverTag.appendChild(closeTag)
coverTag.appendChild(videoTag)
videoTag.play()
yslider.appendChild(coverTag)
}
//播放
genVTage()
closeTag.addEventListener('click', closeVideo, false)
}
//自动播放函数
var ysAutoPlay = function() {
intervalFlag = setInterval(function() { ysChangeImg('next')}, interval)
}
//手动播放函数
var ysManualPlay = function() {
var ySlideroffsetX = 0
var ySliderStartX = 0
var touchEvt = function(evt) {
var e = evt || window.event
var touch = e.touches[0]
switch(e.type) {
case 'touchstart':
e.preventDefault()
ySliderStartX = touch.pageX
clearInterval(intervalFlag)
break
case 'touchmove':
e.preventDefault()
ySlideroffsetX = touch.pageX - ySliderStartX
imgsNode.style.marginLeft = '-' + (currentIndex * conWidth - ySlideroffsetX) + 'px'
break
case 'touchend':
e.preventDefault()
if(ySlideroffsetX < 3 && ySlideroffsetX > -3) { //点击图片
var vsrc = e.target.getAttribute('v-url')
if(vsrc) {
ysPlayVideo(vsrc)
} else {
imgsNode.childNodes[currentIndex].childNodes[0].click()
}
} else if(ySlideroffsetX < -150) {
ysChangeImg('next') //左滑下一页
} else if(ySlideroffsetX > 150) {
ysChangeImg('prev') //右划上一页
} else { //滑动距离小,恢复
imgsNode.style.marginLeft = '-' + (currentIndex * conWidth) + 'px'
}
ySlideroffsetX = 0 //清空偏移
ySliderStartX = 0 //清空起始坐标
ysAutoPlay() //恢复自动轮播
break
case 'touchcancel':
e.preventDefault()
if(ySlideroffsetX < 3 && ySlideroffsetX > -3) { //点击图片
var vsrc = e.target.getAttribute('v-url')
if(vsrc) {
ysPlayVideo(vsrc)
} else {
imgsNode.childNodes[currentIndex].childNodes[0].click()
}
} else if(ySlideroffsetX < -100) {
ysChangeImg('next') //左滑下一页
} else if(ySlideroffsetX > 100) {
ysChangeImg('prev') //右划上一页
} else { //滑动距离小,恢复
imgsNode.style.marginLeft = '-' + (currentIndex * conWidth) + 'px'
}
ySlideroffsetX = 0 //清空偏移
ySliderStartX = 0 //清空起始坐标
ysAutoPlay() //恢复自动轮播
break
default:
break
}
}
imgsNode.addEventListener('touchstart', touchEvt, false)
imgsNode.addEventListener('touchmove', touchEvt, false)
imgsNode.addEventListener('touchend', touchEvt, false)
imgsNode.addEventListener('touchcancel', touchEvt, false)
}
var YS = function(opt) {
if(!opt.target) {
throw '[error]: Yslider - slider container DOM id target can not be null'
}
if(opt.interval !== undefined && typeof opt.interval !== 'number') {
throw '[error]: Yslider - type of images change interval is number'
}
if(opt.imgArray === undefined) {
throw '[error]: Yslider - slider\'s imgArray (image list array) can not be null'
}
if(opt.imgArray.constructor.toString().indexOf('Array') === -1) {
throw '[error]: Yslider - type of imgArray is array'
}
if(opt.showCircle !== undefined && typeof opt.showCircle !== 'boolean') {
throw '[error]: Yslider - type of showCircle is boolean'
}
//生成 slider DOM
ysGenDom(opt)
//初始化参数
ysInit(opt.circleColor, opt.showCircle, opt.interval)
//自动播放
ysAutoPlay()
//手动播放注册
ysManualPlay()
}
return YS
}())
//如果采用模块化打包的时候加上这句
// module.exports = Yslider

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