vue.js层叠轮播效果的实例代码
程序员文章站
2023-08-26 18:11:26
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...
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: 'http://occe.ospc.cn/upload/2016-01-18/145309107223576.jpg',
// url: "http://www.htmleaf.com/"
},
{
// img: require("../assets/liaojiewaibao.png"),
img: "http://occe.ospc.cn/upload/2016-01-17/145302166917282.jpg",
// url: "http://www.htmleaf.com/"
},
{
img: require("../assets/ruhui.png"),
img: "http://occe.ospc.cn/upload/2016-01-17/14530216405007.png",
// url: "http://www.htmleaf.com/"
},
{
// img: require("../assets/callme.png"),
img: "http://occe.ospc.cn/upload/2016-01-18/145309108911041.jpg",
// url: "http://www.htmleaf.com/"
},
]
);
}
}
};
</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>
总结
以上所述是小编给大家介绍的vue.js层叠轮播效果的实例代码，希望对大家有所帮助