使用纯生js实现图片轮换
效果图预览.
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>使用纯生js实现图片轮换效果</title>>
<link href="Styles/style.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="slider">
<div class="slide" style="border-left-style: none; left: 0px;">
<a href="#">
<img class="diapo" src="Images/642120642011110815551808.jpg" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 233px;">
</div>
<div class="text" style="top: 233px;">
<span class="stitle">《千本哈》</span>金馆长进军音乐界</div>
</div>
<div class="slide" style="left: 90px;">
<a href="#">
<img class="diapo" src="Images/6421206420111014165330056.jpg" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 231px;">
</div>
<div class="text" style="top: 231px;">
<span class="stitle">震惊</span>关于金馆长那些high爆了的表情</div>
</div>
<div class="slide" style="left: 190px;">
<a href="#">
<img class="diapo" src="Images/6421206420111009170039010.gif" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 232px;">
</div>
<div class="text" style="top: 232px;">
<span class="stitle">逆袭</span>金馆长的卖萌</div>
</div>
<div class="slide" style="left: 290px;">
<a href="#">
<img class="diapo" src="Images/6421206420111008161252052.gif" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 232px;">
</div>
<div class="text" style="top: 232px;">
<span class="stitle">电影</span>《浪漫刺客》一样给力</div>
</div>
<div class="slide" style="left: 390px;">
<a href="#">
<img class="diapo" src="Images/6421206420111108160036015.jpg" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 231px;">
</div>
<div class="text" style="top: 231px;">
<span class="stitle">劲敌</span>金馆长的那些表情界对手们</div>
</div>
<div class="slide" style="left: 490px;">
<a href="#">
<img class="diapo" src="Images/6421206420111101161354091.jpg" alt="" style="opacity: 0.8;
visibility: visible;"></a>
<div class="backgroundText" style="top: 230px;">
</div>
<div class="text" style="top: 230px;">
<span class="stitle">国产</span>与金馆长喜羊羊say"HI"</div>
</div>
</div>
<script src="Scripts/slider.js" type="text/javascript"></script>
<script type="text/javascript">
slider.init();
</script>
</body>
</html>
HTML Code
/* ==== slider nameSpace ==== */
var slider = function() {
/* ==== private methods ==== */
function getElementsByClass(object, tag, className) {
var o = object.getElementsByTagName(tag);
for ( var i = 0, n = o.length, ret = []; i < n; i++) {
if (o[i].className == className) ret.push(o[i]);
}
if (ret.length == 1) ret = ret[0];
return ret;
}
function setOpacity (obj,o) {
if (obj.filters) obj.filters.alpha.opacity = Math.round(o);
else obj.style.opacity = o / 100;
}
/* ==== Slider Constructor ==== */
function Slider(oCont, speed, iW, iH, oP) {
this.slides = [];
this.over = false;
this.S = this.S0 = speed;
this.iW = iW;
this.iH = iH;
this.oP = oP;
this.oc = document.getElementById(oCont);
this.frm = getElementsByClass(this.oc, 'div', 'slide');
this.NF = this.frm.length;
this.resize();
for (var i = 0; i < this.NF; i++) {
this.slides[i] = new Slide(this, i);
}
this.oc.parent = this;
this.view = this.slides[0];
this.Z = this.mx;
/* ==== on mouse out event ==== */
this.oc.onmouseout = function () {
this.parent.mouseout();
return false;
}
}
Slider.prototype = {
/* ==== animation loop ==== */
run : function () {
this.Z += this.over ? (this.mn - this.Z) * .5 : (this.mx - this.Z) * .5;
this.view.calc();
var i = this.NF;
while (i--) this.slides[i].move();
},
/* ==== resize ==== */
resize : function () {
this.wh = this.oc.clientWidth;
this.ht = this.oc.clientHeight;
this.wr = this.wh * this.iW;
this.r = this.ht / this.wr;
this.mx = this.wh / this.NF;
this.mn = (this.wh * (1 - this.iW)) / (this.NF - 1);
},
/* ==== rest ==== */
mouseout : function () {
this.over = false;
setOpacity(this.view.img, this.oP);
}
}
/* ==== Slide Constructor ==== */
Slide = function (parent, N) {
this.parent = parent;
this.N = N;
this.x0 = this.x1 = N * parent.mx;
this.v = 0;
this.loaded = false;
this.cpt = 0;
this.start = new Date();
this.obj = parent.frm[N];
this.txt = getElementsByClass(this.obj, 'div', 'text');
this.img = getElementsByClass(this.obj, 'img', 'diapo');
this.bkg = document.createElement('div');
this.bkg.className = 'backgroundText';
this.obj.insertBefore(this.bkg, this.txt);
if (N == 0) this.obj.style.borderLeft = 'none';
this.obj.style.left = Math.floor(this.x0) + 'px';
setOpacity(this.img, parent.oP);
/* ==== mouse events ==== */
this.obj.parent = this;
this.obj.onmouseover = function() {
this.parent.over();
return false;
}
}
Slide.prototype = {
/* ==== target positions ==== */
calc : function() {
var that = this.parent;
// left slides
for (var i = 0; i <= this.N; i++) {
that.slides[i].x1 = i * that.Z;
}
// right slides
for (var i = this.N + 1; i < that.NF; i++) {
that.slides[i].x1 = that.wh - (that.NF - i) * that.Z;
}
},
/* ==== HTML animation : move slides ==== */
move : function() {
var that = this.parent;
var s = (this.x1 - this.x0) / that.S;
/* ==== lateral slide ==== */
if (this.N && Math.abs(s) > .5) {
this.obj.style.left = Math.floor(this.x0 += s) + 'px';
}
/* ==== vertical text ==== */
var v = (this.N < that.NF - 1) ? that.slides[this.N + 1].x0 - this.x0 : that.wh - this.x0;
if (Math.abs(v - this.v) > .5) {
this.bkg.style.top = this.txt.style.top = Math.floor(2 + that.ht - (v - that.Z) * that.iH * that.r) + 'px';
this.v = v;
this.cpt++;
} else {
if (!this.pro) {
/* ==== adjust speed ==== */
this.pro = true;
var tps = new Date() - this.start;
if(this.cpt > 1) {
that.S = Math.max(2, (28 / (tps / this.cpt)) * that.S0);
}
}
}
if (!this.loaded) {
if (this.img.complete) {
this.img.style.visibility = 'visible';
this.loaded = true;
}
}
},
/* ==== light ==== */
over : function () {
this.parent.resize();
this.parent.over = true;
setOpacity(this.parent.view.img, this.parent.oP);
this.parent.view = this;
this.start = new Date();
this.cpt = 0;
this.pro = false;
this.calc();
setOpacity(this.img, 100);
}
}
/* ==== public method - script initialization ==== */
return {
init : function() {
// create instances of sliders here
// parameters : HTMLcontainer name, speed (2 fast - 20 slow), Horizontal ratio, vertical text ratio, opacity
this.s1 = new Slider("slider", 12, 1.84/3, 1/3.2, 80);
setInterval("slider.s1.run();", 16);
}
}
}();
JavaScript Code
/*顶部轮换*/
#slider
{
position: relative;
width: 580px;
float: right;
padding-right: 20px;
height: 230px;
overflow: hidden;
background: #CCC;
border: 5px solid #CCC;
display: block;
}
#slider .slide
{
position: absolute;
top: 0px;
height: 230px;
width: 370px;
overflow: hidden;
border-left: #222 solid 1px;
cursor: default;
}
#slider .stitle
{
color: #F80;
font-weight: bold;
font-size: 1.2em;
margin-right: 1.5em;
text-decoration: none;
}
#slider .backgroundText
{
position: absolute;
width: 100%;
height: 100%;
top: 100%;
background: #000;
filter: alpha(opacity=40);
opacity: 0.5;
}
#slider .text
{
position: absolute;
top: 1%;
top: 100%;
color: #FFF;
font-family: verdana, arial, Helvetica, sans-serif;
font-size: 12px;
width: 320px;
left: 10px;
height: 70px;
overflow: hidden;
}
#slider .diapo
{
position: absolute;
filter: alpha(opacity=100);
opacity:;
visibility: hidden;
}
CSS CODE
有空上传一份源码
使用纯生js实现图片轮换的更多相关文章
- 使用纯生js操作cookie
前段时间做项目的时候要使用js操作cookie,jquery也有相应的插件,不过还是觉得纯生的js比较好,毕竟不依赖jq. //获得coolie 的值 function cookie(name) { ...
- html input type=file 选择图片,图片预览 纯html js实现图片预览
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/ ...
- 纯生js实现Element中input组件的部分功能（慢慢完善）并封装成组件
现在实现的有基础用法.可清空.密码框,参考链接:https://element.eleme.cn/#/zh-CN/component/input HTML代码:想要测试哪个组件,直接将对应组件解开注释 ...
- 纯原生js移动端图片压缩上传插件
前段时间,同事又来咨询一个问题了,说手机端动不动拍照就好几M高清大图,上传服务器太慢,问问我有没有可以压缩图片并上传的js插件,当然手头上没有,别慌,我去网上搜一搜. 结果呢,呵呵...诶~又全是基于 ...
- 图片纯前端JS压缩的实现
一.图片上传前端压缩的现实意义 对于大尺寸图片的上传,在前端进行压缩除了省流量外,最大的意义是极大的提高了用户体验. 这种体验包括两方面: 由于上传图片尺寸比较小,因此上传速度会比较快,交互会更加流畅 ...
- Jquery实现图片轮换效果
最近在看jquery书时,看到一个比较有趣的东西:图片轮换.这里和大家分享下我看完后写的一个demo.实现图片轮换要完成三部分模块:html部分.css部分.jqury部分.下面分步详细说明.1.ht ...
- JS实现图片预加载无需等待
网站开发时经常需要在某个页面需要实现对大量图片的浏览;用javascript来实现一个图片浏览器,让用户无需等待过长的时间就能看到其他图片 网站开发时经常需要在某个页面需要实现对大量图片的浏览,如果考 ...
- 纯CSS3实现的图片滑块程序 效果非常酷
原文:纯CSS3实现的图片滑块程序 效果非常酷 之前我们经常会看到很多利用jQuery实现的焦点图插件,种类太多了,今天我想给大家分享一款利用纯CSS3实现的图片滑块应用,完全是利用CSS3的相关特性 ...
- js实现图片粘贴上传到服务器并展示
最近看了一些有关于js实现图片粘贴上传的demo,实现如下: (这里只能检测到截图粘贴和图片右键复制之后粘贴) demo1: document.addEventListener('paste', fu ...
随机推荐
- Javaworkers团队第三周项目总结
第十三.十四周:按照项目设计,逐步完成各个模块的代码,初步完成项目雏形. 基础知识原理 1.TDD(Test Driven Development, 测试驱动开发),TDD的一般步骤如下: 明确当前要 ...
- luogu p1101 单词方阵
https://www.luogu.org/problem/show?pid=1101 很恶心的代码 就是八个方向都搜索 #include<bits/stdc++.h> using na ...
- UVa 11825 黑客的攻击（状态压缩dp）
https://vjudge.net/problem/UVA-11825 题意: 假设你是一个黑客,侵入了一个有着n台计算机(编号为0,1,...,n-1)的网络.一共有n种服务,每台计算机都运行着所 ...
- Codeforces Round #413, rated, Div. 1 + Div. 2 C. Fountains（贪心 or 树状数组）
http://codeforces.com/contest/799/problem/C 题意: 有n做花园,有人有c个硬币,d个钻石 (2 ≤ n ≤ 100 000, 0 ≤ c, d ≤ 100 ...
- tp5.1报错 页面错误！请稍后再试
修改框架中convention.php // 应用调试模式 'app_debug' => true, 修改app.php不一定有效.
- callee 与 caller
arguments.callee 在函数内部指向函数本身 1.函数调用 function sum (num){ if(num <= 1){ return 1; }else{ return num ...
- Java语言的垃圾回收机制
java语言从诞生开始,一个吸引人眼球的功能就是垃圾回收,想一想C++中时不时的内存泄漏,当时感觉写java代码直是一种享受呀. 和.NET的引用计数不同,java的垃圾回收机制采取的是有向图 ...
- Android之提示Toast
步骤: 设置监听事件步骤1.事件源,如按键 btn_simple2.事件 OnClick3.监听器new OnClickListener3.绑定事件源与事件 setOnClickListener(ne ...
- python实现本地批量ping多个IP
本文主要利用python的相关模块进行批量ping ,测试IP连通性. 下面看具体代码(python3): #!/usr/bin/env python#-*-coding:utf-8-*- impor ...
- oracle表的统计信息完全正确，执行计划无故改变。原厂人员如是回复
就像在电话里提到的那样,Oracle内部的优化器是根据一系列的内部算法基于表上的统计信息来产生执行计划的.对于特别复杂的SQL语句,Oracle的优化器有一定几率不能得到最优的执行计划(因为机器代码实 ...