最近写公司项目有涉及到轮播banner，一般的ui框架无法满足产品需求；所以自己写了一个层叠式轮播组件；现在分享给大家；

主要技术栈是vue.js ;javascript;jquery；确定实现思路因工作繁忙，暂时不做梳理了；直接贴代码参考；

此组件是基于jquer封装，在vue项目中使用首先需要先安装jquery插件：指令：npm install jquery,安装完成之后再webpack.base.conf.js配置插件：

plugins: [ new webpack.ProvidePlugin({ $: 'jquery', jQuery: 'jquery' }),]

主要实现逻辑js文件：postercarousel.js；

代码如下：

(function(jq){ function postercarousel(o, options, data){ this.parent = jq("#"+ o); this.body = jq("body"); if (this.parent.length <= 0) {  return false; }  this.options = jq.extend({}, postercarousel.options, options); if(typeof(data) !== 'object') return false;  this.data = data || {}; this.reset(); //处理页面resize var _this = this; jq(window).resize(function(){ _this.reset(); }); }; postercarousel.prototype = { reset: function(options){ if(typeof(options) == 'object'){ jq.extend(this.options, options);  } if(parseInt(this.body.outerWidth())>1255 || navigator.userAgent.indexOf('iPad') !== -1){ this.options.width = 970;  }else{ this.options.width = 970;  } this.total = this.data.length; this.pageNow = this.options.initPage; this.preLeft = 0; this.nextLeft = this.options.width-530; this.preNLeft = -530; this.nextNLeft = this.options.width; this.pageNowLeft = (this.options.width-640)/2 this.drawContent(); }, drawContent: function(){ this.parent.empty(); this.parent.css({width:this.options.width+"px", height:this.options.height+"px", position: "relative"}); this.content = document.createElement("DIV"); this.content.className = this.options.className; this.content.cssText = "width:"+this.options.width+"px;height:"+this.options.height+"px;cursor:move;position:absolute;"; this.bottomNav = document.createElement("DIV"); this.bottomNav.className = "bottomNav"; for(var i=1; i<= this.total; i++){ var bottomItem = document.createElement("DIV"); bottomItem.className = "bottomNavButtonOFF"; if(i == this.pageNow){ bottomItem.className = "bottomNavButtonOFF bottomNavButtonON"; } bottomItem.setAttribute("ref", i); this.bottomNav.appendChild(bottomItem); } this.content.appendChild(this.bottomNav); this.bannerControls = '<div class="bannerControls"> <div class="leftNav" style="display: block;"></div> <div class="rightNav" style="display: block;"></div> </div>'; this.content.innerHTML += this.bannerControls;  this.contentHolder = document.createElement("DIV"); this.contentHolder.style.width = this.options.width + 'px'; this.contentHolder.style.height = this.options.height + 'px';  for(var item=0, i = 1, l= this.data.length ; item < l ; ++item, ++i){ var contentHolderUnit = document.createElement("DIV"); contentHolderUnit.className = "contentHolderUnit"; contentHolderUnit.setAttribute("ref", i); contentHolderUnit.setAttribute("id", 'contentHolderUnit' + (i)); var unitItem = '<a href="'+this.data[item].url+'" rel="external nofollow" target="_blank" class="elementLink">'; unitItem += '</a>'; unitItem += '<img src="'+this.data[item].img+'" alt="'+this.data[item].title+'"/>'; unitItem += '<span class="elementOverlay"></span>'; unitItem += '<span class="leftShadow"></span>'; unitItem += '<span class="rightShadow"></span>'; contentHolderUnit.innerHTML = unitItem; this.contentHolder.appendChild(contentHolderUnit); } this.content.appendChild(this.contentHolder); this.parent.append(this.content); this.parent.css({overflow:'hidden'}); this.initContent(); this.bind(); this.start(); }, initContent: function(){ contentHolderUnit = this.parent.find(".contentHolderUnit"); contentHolderUnit.css({width:'0px',height:'0px', opacity: 0, left:this.options.width/2+'px', zIndex:0, marginTop: '135px'}); this.parent.find(".contentHolderUnit:nth-child("+this.pageNow+")").css({width:'640px',height:'450', opacity: 1, left: this.pageNowLeft+'px', zIndex: 3, marginTop: 0}); this.parent.find(".contentHolderUnit:nth-child("+this.pageNow+") .elementOverlay").css({opacity:0}); this.parent.find(".contentHolderUnit:nth-child("+this.pageNow+") .leftShadow").css({opacity:1}); this.parent.find(".contentHolderUnit:nth-child("+this.pageNow+") .rightShadow").css({opacity:1});  var pre = this.pageNow > 1 ? this.pageNow -1: this.total; var next = this.pageNow == this.total ? 1 : this.pageNow + 1; this.parent.find(".contentHolderUnit:nth-child("+pre+")").css({opacity: 1, left: this.preLeft+'px',height: '450', width: '530px', zIndex: 0, marginTop: '23px'}); this.parent.find(".contentHolderUnit:nth-child("+pre+") .elementOverlay").css({opacity:0.4}); this.parent.find(".contentHolderUnit:nth-child("+pre+") .leftShadow").css({opacity:0}); this.parent.find(".contentHolderUnit:nth-child("+pre+") .rightShadow").css({opacity:0});  this.parent.find(".contentHolderUnit:nth-child("+next+")").css({opacity: 1, left: this.nextLeft+'px',height: '450', width: '530px', zIndex: 0, marginTop: '23px'}); this.parent.find(".contentHolderUnit:nth-child("+next+") .elementOverlay").css({opacity:0.4}); this.parent.find(".contentHolderUnit:nth-child("+next+") .leftShadow").css({opacity:0}); this.parent.find(".contentHolderUnit:nth-child("+next+") .rightShadow").css({opacity:0}); }, bind: function(){ this.leftNav = this.parent.find(".leftNav"); this.rightNav = this.parent.find(".rightNav"); this.bottonNav = this.parent.find(".bottomNavButtonOFF"); this.lists = this.parent.find(".contentHolderUnit"); var _this = this; this.parent.mouseover(function(){ _this.stop(); _this.leftNav.show(); _this.rightNav.show(); }); this.parent.mouseout(function(){ _this.start(); //_this.leftNav.hide(); //_this.rightNav.hide(); });  _this.leftNav.click(function(){ _this.turn("right");  }); _this.rightNav.click(function(){ _this.turn("left");  }); _this.bottonNav.click(function(){ var ref = parseInt(this.getAttribute("ref")); if(_this.pageNow == ref) return false;  if(_this.pageNow < ref){ var rightAbs = ref - _this.pageNow; var leftAbs = _this.pageNow + _this.total - ref; }else{ var rightAbs = _this.total - _this.pageNow + ref; var leftAbs = _this.pageNow - ref; } if(leftAbs < rightAbs){ dir = "right";  }else{ dir = "left";  }  _this.turnpage(ref, dir); return false; });  _this.lists.click(function(e){ var ref = parseInt(this.getAttribute("ref")); if(_this.pageNow == ref) { return true; }else{ e.preventDefault(); } if(_this.pageNow < ref){ var rightAbs = ref - _this.pageNow; var leftAbs = _this.pageNow + _this.total - ref; }else{ var rightAbs = _this.total - _this.pageNow + ref; var leftAbs = _this.pageNow - ref; } if(leftAbs < rightAbs){ dir = "right";  }else{ dir = "left";  } _this.turnpage(ref, dir);   }); }, initBottomNav: function(){ this.parent.find(".bottomNavButtonOFF").removeClass("bottomNavButtonON"); this.parent.find(".bottomNavButtonOFF:nth-child("+this.pageNow+")").addClass("bottomNavButtonON"); }, start: function(){ var _this = this; if(_this.timerId) _this.stop(); _this.timerId = setInterval(function(){ if(_this.options.direct == "left"){ _this.turn("left");  }else{ _this.turn("right");  } }, _this.options.delay); }, stop: function(){ clearInterval(this.timerId); }, turn: function(dir){ var _this = this;  if(dir == "right"){ var page = _this.pageNow -1; if(page <= 0) page = _this.total; }else{ var page = _this.pageNow + 1; if(page > _this.total) page = 1; } _this.turnpage(page, dir); }, turnpage: function(page, dir){ var _this = this; if(_this.locked) return false; _this.locked = true; if(_this.pageNow == page) return false;  var run = function(page, dir, t){ var pre = page > 1 ? page -1: _this.total; var next = page == _this.total ? 1 : page + 1; var preP = pre - 1 >= 1 ? pre-1 : _this.total; var nextN = next + 1 > _this.total ? 1 : next+1; if(pre != _this.pageNow && next != _this.pageNow){ var nowpre = _this.pageNow > 1 ? _this.pageNow -1: _this.total; var nownext = _this.pageNow == _this.total ? 1 : _this.pageNow + 1; _this.parent.find(".contentHolderUnit:nth-child("+nowpre+")").animate({width:'0px',height:'0px', opacity: 0, left:_this.options.width/2+'px', zIndex:0, marginTop: '135px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+_this.pageNow+")").animate({width:'0px',height:'0px', opacity: 0, left:_this.options.width/2+'px', zIndex:0, marginTop: '135px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+nownext+")").animate({width:'0px',height:'0px', opacity: 0, left:_this.options.width/2+'px', zIndex:0, marginTop: '135px'}, t); } if(dir == 'left'){  _this.parent.find(".contentHolderUnit:nth-child("+_this.pageNow+")").css({zIndex: 0});   _this.parent.find(".contentHolderUnit:nth-child("+pre+") .elementOverlay").css({opacity:0.4}); _this.parent.find(".contentHolderUnit:nth-child("+pre+")").animate({opacity: 1, left: _this.preLeft+'px', height: '450', width: '530px', zIndex: 2, marginTop: '23px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+pre+") .leftShadow").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+pre+") .rightShadow").css({opacity:0});   _this.parent.find(".contentHolderUnit:nth-child("+page+")").css({zIndex: 3}); _this.parent.find(".contentHolderUnit:nth-child("+page+")").animate({opacity: 1, left: _this.pageNowLeft+'px', height: '450', width: '640px', zIndex: 3, marginTop: '0'}, t); _this.parent.find(".contentHolderUnit:nth-child("+page+") .elementOverlay").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+page+") .leftShadow").css({opacity:1}); _this.parent.find(".contentHolderUnit:nth-child("+page+") .rightShadow").css({opacity:1});  _this.parent.find(".contentHolderUnit:nth-child("+next+")").css({opacity: 0, left: _this.nextNLeft+'px', height: '450', width: '530px', zIndex: 2, marginTop: '85px'}); _this.parent.find(".contentHolderUnit:nth-child("+next+")").animate({opacity: 1, left: _this.nextLeft+'px', height: '450', width:"530px", zIndex: 2, marginTop: '23px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+next+") .elementOverlay").css({opacity:0.4}); _this.parent.find(".contentHolderUnit:nth-child("+next+") .leftShadow").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+next+") .rightShadow").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+preP+")").css({zIndex:0}); _this.parent.find(".contentHolderUnit:nth-child("+preP+")").animate({width:'530px',height:'350px', opacity: 0, left:_this.preNLeft+'px', zIndex:0, marginTop: '85px'},t, "", function(){_this.locked=false;});   }else{ _this.parent.find(".contentHolderUnit:nth-child("+_this.pageNow+")").css({zIndex: 0});  _this.parent.find(".contentHolderUnit:nth-child("+next+")").css({zIndex:2}); _this.parent.find(".contentHolderUnit:nth-child("+next+")").animate({opacity: 1, left: _this.nextLeft+'px', height: '450', width: '530px', zIndex: 2, marginTop: '23px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+next+") .elementOverlay").css({opacity:0.4}); _this.parent.find(".contentHolderUnit:nth-child("+next+") .leftShadow").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+next+") .rightShadow").css({opacity:0});  _this.parent.find(".contentHolderUnit:nth-child("+page+")").css({zIndex: 3}, t); _this.parent.find(".contentHolderUnit:nth-child("+page+")").animate({opacity: 1, left: _this.pageNowLeft+'px', height: '450', width: '640px', zIndex: 3, marginTop: '0px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+page+") .elementOverlay").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+page+") .leftShadow").css({opacity:1}); _this.parent.find(".contentHolderUnit:nth-child("+page+") .rightShadow").css({opacity:1});  _this.parent.find(".contentHolderUnit:nth-child("+pre+")").css({opacity: 0, left: _this.preNLeft+'px', height: '450', width: '530px', zIndex: 2, marginTop: '85px'}); _this.parent.find(".contentHolderUnit:nth-child("+pre+")").animate({opacity: 1, left: _this.preLeft+'px', height: '450', width: '530px', zIndex: 2, marginTop: '23px'}, t); _this.parent.find(".contentHolderUnit:nth-child("+pre+") .elementOverlay").css({opacity:0.4}); _this.parent.find(".contentHolderUnit:nth-child("+pre+") .leftShadow").css({opacity:0}); _this.parent.find(".contentHolderUnit:nth-child("+pre+") .rightShadow").css({opacity:0});  _this.parent.find(".contentHolderUnit:nth-child("+nextN+")").css({zIndex:0}); _this.parent.find(".contentHolderUnit:nth-child("+nextN+")").animate({width:'530px',height:'450', opacity: 0, left:_this.nextNLeft+'px', zIndex:0, marginTop: '85px'}, t, "",function(){_this.locked=false;}); }  _this.pageNow = page; _this.initBottomNav(); };  run(page, dir,_this.options.speed);   }  };  postercarousel.options = { offsetPages : 3,//默认可视最大条数 direct : "left",//滚动的方向 initPage : 1,//默认当前显示第几条 className : "postercarousel",//最外层样式 autoWidth : false,//默认不用设置宽 // width : 100,//最外层宽，需要使用的时候在传,默认由程序自动判断 height :450,//最外层高  delay : 3000,//滚动间隔（毫秒） speed : 500 //滚动速度毫秒 };  window.postercarousel = postercarousel;})(jQuery)

相关vue组件代码以及使用方式：

代码如下：

<template> <div class="broadcast"> <div class="htmleaf-container"> <div class="htmleaf-content"> <div id="postercarousel" style="margin:40px auto 0 auto;"></div> </div> </div> </div></template><script>import "jQuery";import "@/static/js/postercarousel";export default { data() { return {}; }, mounted() { this.initposter(); console.log(postercarousel); 21 }, methods: { initposter() { var postercarousel = new postercarousel( "postercarousel", { className: "postercarousel" }, [ { // img: require("../assets/callme.png"), img: '', // url: "" }, { // img: require("../assets/liaojiewaibao.png"), img: "", // url: "" }, { img: require("../assets/ruhui.png"), img: "", // url: "" }, { // img: require("../assets/callme.png"), img: "", // url: "" }, ] ); } }};</script><style lang="scss">.broadcast { /* postercarousel */ #postercarousel { width: 100% !important; height: 450px; } .postercarousel { position: relative; height: 100%; width: 100% !important; } .postercarousel img { max-width: 100%; max-height: 100%; border: 0 none; background: #888; display: block; } .postercarousel .contentHolder { position: relative; overflow: hidden; } .postercarousel .contentHolderUnit { cursor: pointer; position: absolute; width: 83% !important; height: 450px; } .postercarousel .contentHolderUnit a.elementLink { display: block; overflow: hidden; z-index: 3; position: absolute; left: 0; right: 0; width: 100%; height: 100%; } .postercarousel .contentHolderUnit img { width: 100%; height: 100%; display: block; } .postercarousel .contentHolderUnit .elementTitle { } .postercarousel .contentHolderUnit .elementOverlay { z-index: 1; position: absolute; top: 0; left: 0; background: #000; width: 100%; height: 100%; opacity: 0; filter: opacity=0; } .postercarousel .contentHolderUnit .leftShadow { position: absolute; top: 23px; left:-250px; // width: 250px; height:327px; background: url("../assets/images/leftShadow.png") no-repeat; background-size: contain; } .postercarousel .contentHolderUnit .rightShadow { position: absolute; top: 23px; right:134px; height: 327px; background: url("../assets/images/rightShadow.png") no-repeat; background-size: contain; } .postercarousel .bannerControls { } .postercarousel .leftNav, .postercarousel .rightNav { cursor: pointer; z-index: 10; position: absolute; top: 60%; width: 45px; height: 45px; margin-top: -43px; } .postercarousel .leftNav { left: 7px; background: url("../assets/images/1.png") no-repeat; _background: none; _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src="@/assets/images/slide_prev_btn.png"); } .postercarousel .rightNav { right: 7px; background: url("../assets/images/2.png") no-repeat; _background: none; _filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(src="@/assets/images/slide_next_btn.png"); } .postercarousel .leftNav:hover { } .postercarousel .rightNav:hover { } .postercarousel .bottomNav { z-index: 140; position: absolute; width: 100%; height: 10px; margin-top: 400px; padding: 10px 0 0; text-align: center; } .postercarousel .bottomNavButtonOFF { cursor: pointer; overflow: hidden; display: inline-block; *display: inline; *zoom: 1; width: 10px; height: 10px; margin: 0 5px; vertical-align: top; -webkit-border-radius: 5px; -moz-border-radius: 5px; border-radius: 5px; background: #c3c3c3; } .postercarousel .bottomNavButtonOFF:hover { background: #aaa; } .postercarousel .bottomNavButtonON, .postercarousel .bottomNavButtonON:hover { background: #69aaec; } .postercarousel .bottomNavLeft { } .postercarousel .bottomNavRight { }}</style>

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