JS method to realize dragging left and right to change the size of the content display area

JS method to realize dragging left and right to change the size of the content display area_javascript skills

WBOY

Release： 2016-05-16 15:36:40

Original

1828 people have browsed it

The example in this article describes the method of using JS to drag left and right to change the size of the content display area. Share it with everyone for your reference. The details are as follows:

Here is a demonstration of the effect of the left and right draggable content display area. Drag the red bar left and right to change the width of the display area. Drag to the left to display all the content on the right, and drag to the right to display all the content on the left. Similar to QQ chat Like windows, the size can be dragged up or down to suit the user's requirements. This code is completely implemented by combining JavaScript and CSS code. It has good compatibility when running in all mainstream browsers. Dragging the JS code left and right to change the size is recommended to everyone.

The screenshot of the running effect is as follows:

The online demo address is as follows:

http://demo.jb51.net/js/2015/js-drug-cha-area-show-demo/

The specific code is as follows:

<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>左右可拖动的内容显示区</title>
<style>
ul,li{margin:0;padding:0;}
body{font:14px/1.5 Arial;color:#666;}
#box{position:relative;width:600px;height:400px;border:2px solid #000;margin:10px auto;overflow:hidden;}
#box ul{list-style-position:inside;margin:10px;}
#top,#bottom{color:#FFF;width:300px;height:400px;overflow:hidden;}
#top{background:green; float:left}
#bottom{background:skyblue;float:right}
#line{position:absolute;top:0;left:50%;height:100%;width:4px;overflow:hidden;background:red;cursor:w-resize;}
</style>
<script>
function $(id) {
 return document.getElementById(id) 
}
window.onload = function() {
 var oBox = $("box"), oTop = $("top"), oBottom = $("bottom"), oLine = $("line");
 oLine.onmousedown = function(e) {
 var disX = (e || event).clientX;
 oLine.left = oLine.offsetLeft;
 document.onmousemove = function(e) { 
  var iT = oLine.left + ((e || event).clientX - disX);
 var e=e||window.event,tarnameb=e.target||e.srcElement;
  var maxT = oBox.clientWight - oLine.offsetWidth;
  oLine.style.margin = 0;
  iT < 0 && (iT = 0);
  iT > maxT && (iT = maxT);
  oLine.style.left = oTop.style.width = iT + "px";
  oBottom.style.width = oBox.clientWidth - iT + "px";
 $("msg").innerText='top.width:'+oLine.style.width+'---bottom.width:'+oBottom.style.width+'---oLine.offsetLeft:'+oLine.offsetLeft+'---disX:'+disX+'---tarnameb:'+tarnameb.tagName;
  return false
 }; 
 document.onmouseup = function() {
  document.onmousemove = null;
  document.onmouseup = null; 
  oLine.releaseCapture && oLine.releaseCapture()
 };
 oLine.setCapture && oLine.setCapture();
 return false
 };
};
</script>
</head>
<body>
<center>左右拖动红条改变显示区域宽度<span id="msg"></span></center>
<div id="box">
 <div id="top">
 <ul>
 <li><a href="#" target="_blank">jQuery初学实例代码集</a></li><li><a href="#" target="_blank">100多个ExtJS应用初学实例集</a></li>
  <li><a href="#" target="_blank">基于jQuery的省、市、县三级级联菜单</a></li>
  <li><a href="#" target="_blank">一个类似QQ网的JS相册展示特效</a></li>
  <li><a href="#" target="_blank">eWebEditor v4.60 最新通用精简版</a></li>
  <li><a href="#" target="_blank">FCKeditor 2.6.4.1 网页编辑器</a></li>
  <li><a href="#" target="_blank">jQuery平滑图片滚动</a></li>
  <li><a href="#" target="_blank">Xml+JS省市县三级联动菜单</a></li>
  <li><a href="#" target="_blank">jQuery 鼠标滑过链接文字弹出层提示的效果</a></li>
  <li><a href="#" target="_blank">JS可控制的图片左右滚动特效（走马灯）</a></li>
 </ul>
 </div>
 <div id="bottom">
 <ul>
 <li><a href="#" target="_blank">网页上部大Banner广告特效及图片横向滚动代码</a></li>
  <li><a href="#" target="_blank">FlexSlider网页广告、图片焦点图切换插件</a></li>
  <li><a href="#" target="_blank">兼容IE，火狐的JavaScript图片切换</a></li>
  <li><a href="#" target="_blank">jQuery仿ios无线局域网WIFI提示效果（折叠面板）</a></li>
  <li><a href="#" target="_blank">TopUp js图片展示及弹出层特效代码</a></li>
  <li><a href="#" target="_blank">jQuery仿Apple苹果手机放大镜阅读效果</a></li>
  <li><a href="#" target="_blank">Colortip 文字title多样式提示插件</a></li>
  <li><a href="#" target="_blank">网页换肤，Ajax网页风格切换代码集</a></li>
  <li><a href="#" target="_blank">超强大、漂亮的蓝色网页弹出层效果</a></li>
  <li><a href="#" target="_blank">jQuery 图像预览功能的代码实现</a></li>
 </ul>
 </div>
 <div id="line"></div>
</div>
</body>
</html>

Copy after login

I hope this article will be helpful to everyone’s JavaScript programming.