标签:rap list otc 事件处理 就是 mouseover res def wrap
其实也就是垂直轮播图的原理,当然可以直接使用轮播图组件去实现,在网上看到一个用很简单的代码就实现了的,一看就懂。
发现一个小bug,我把导航加上了名称并且把hover改为了click,假如当前是第一页,当我先点击了第四页,翻页到第四页,此时用鼠标滚轮向下滚动,是会翻到第二页,这就需要在点击翻页函数中更新当前所在的位置
<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script> <title></title> <!-- @time: 2018-08-04 @version: 0.0.1 @author: Mortal --> <style type="text/css"> /* * 说明: * 标注为慎删的属性暂时认定可以删除,即在作者测试的环境下删除暂时没有影响,但不代表所有环境下删除都没有影响 * 其他属性一概不可以删除 */ html, body { height: 100%; } body, ul, li, a, p, div { /*慎删*/ padding: 0px; margin: 0px; } #wrap { overflow: hidden; width: 100%; } #main { top: 0; position: relative; } .page { /*谨删*/ width: 100%; margin: 0; } #pageUl { position: fixed; right: 10px; } </style> </head> <body> <!-- 每个全屏页面div的class为page,其中的图片的class为pageImg ul为右侧的导航栏 pageUlLi和page的数目必须相等,修改数目时还应修改最下面js鼠标悬停的跳转代码 --> <div id="wrap"> <div id="main"> <ul id="pageUl" type="circle"> <li id="pageUlLi1" class="pageUlLi" style="color: red;"> </li> <li id="pageUlLi2" class="pageUlLi"> </li> <li id="pageUlLi3" class="pageUlLi"> </li> <li id="pageUlLi4" class="pageUlLi"> </li> <li id="pageUlLi5" class="pageUlLi"> </li> </ul> <div style="background-color: #1b6d85" id="page1" class="page"> </div> <div style="background-color: #5cb85c" id="page2" class="page"> </div> <div style="background-color: #8a6d3b" id="page3" class="page"> </div> <div style="background-color: #337ab7" id="page4" class="page"> </div> <div style="background-color: #66512c" id="page5" class="page"> </div> </div> </div> </body> <script type="text/javascript"> //改变窗口大小时调整图片大小 window.onload = resizeImages; window.onresize = resizeImages; function resizeImages() { $(function (e) { var screenWeight = document.documentElement.clientWidth; var screenHeight = document.documentElement.clientHeight; $("[name=pageImg]").css("width", screenWeight).css("height", screenHeight); $("#pageUl").css("bottom", screenHeight >> 1); }); } var index = 1; var curIndex = 1; var wrap = document.getElementById("wrap"); var main = document.getElementById("main"); var hei = document.body.clientHeight; wrap.style.height = hei + "px"; var obj = document.getElementsByTagName("div"); for (var i = 0; i < obj.length; i++) { if (obj[i].className == ‘page‘) { obj[i].style.height = hei + "px"; } } var pageNum = document.querySelectorAll(".page").length; //如果不加时间控制,滚动会过度灵敏,一次翻好几屏 var startTime = 0, //翻屏起始时间 endTime = 0, now = 0; //浏览器兼容 if ((navigator.userAgent.toLowerCase().indexOf("firefox") != -1)) { document.addEventListener("DOMMouseScroll", scrollFun, false); } else if (document.addEventListener) { document.addEventListener("mousewheel", scrollFun, false); } else if (document.attachEvent) { document.attachEvent("onmousewheel", scrollFun); } else { document.onmousewheel = scrollFun; } //滚动事件处理函数 function scrollFun(event) { startTime = new Date().getTime(); var delta = event.detail || (-event.wheelDelta); //mousewheel事件中的 “event.wheelDelta” 属性值:返回的如果是正值说明滚轮是向上滚动 //DOMMouseScroll事件中的 “event.detail” 属性值:返回的如果是负值说明滚轮是向上滚动 if ((endTime - startTime) < -1000) { if (delta > 0 && parseInt(main.offsetTop) > -(hei * (pageNum - 1))) { //向下滚动 index++; toPage(index); } if (delta < 0 && parseInt(main.offsetTop) < 0) { //向上滚动 index--; toPage(index); } endTime = new Date().getTime(); } else { event.preventDefault(); } } function toPage(idx) { //jquery实现动画效果 if(idx!=curIndex){ index=idx var delta=idx - curIndex; now = now - delta * hei; $("#main").animate({ top: (now + ‘px‘) }, 500); curIndex = idx; //更改列表的选中项 $(".pageUlLi").css("color", "black"); $("#pageUlLi" + idx).css("color", "red"); } } // //鼠标悬停翻页 // document.getElementById("pageUlLi1").onmouseover = function () { // toPage(1); // } // document.getElementById("pageUlLi2").onmouseover = function () { // toPage(2); // } // document.getElementById("pageUlLi3").onmouseover = function () { // toPage(3); // } // document.getElementById("pageUlLi4").onmouseover = function () { // toPage(4); // } // document.getElementById("pageUlLi5").onmouseover = function () { // toPage(5); // } //鼠标点击翻页 document.getElementById("pageUlLi1").onclick = function () { toPage(1); } document.getElementById("pageUlLi2").onclick = function () { toPage(2); } document.getElementById("pageUlLi3").onclick = function () { toPage(3); } document.getElementById("pageUlLi4").onclick = function () { toPage(4); } document.getElementById("pageUlLi5").onclick = function () { toPage(5); } </script> </html>
标签:rap list otc 事件处理 就是 mouseover res def wrap
原文地址:https://www.cnblogs.com/smedas/p/12751156.html