JS implements a clean fully compatible drag layer instance

  • 2020-06-12 08:33:26
  • OfStack

This article illustrates JS's implementation of a clean, fully compatible drag layer. Share to everybody for everybody reference. The specific analysis is as follows:

This is the simplest JS layer drag code, fully compatible with ie, ff, opera, safari... Each browser has its own judgment and implementation, and you just copy the code into your web page and use it. High-level friends can continue to modify, add more methods, make it more powerful.

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
<html xmlns="http://www.w3.org/1999/xhtml">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>JS Drag the layer </title>
<div id="f" style="position: absolute; width: 216px; height: 138px; 
background-color: skyblue;font-size: 12px; top: 210px; left: 180px;
z-index: 101; border: solid 1px blue;">
<div id="title" style="background-color: Blue; cursor: move; 
height: 20px; color: #fff;font-size: 12px; padding-top: 5px;
padding-left: 10px;"> The title of the layer </div>
 The content of the layer 
<script type="text/javascript">
var posX;
var posY;    
fdiv = document.getElementById("f");      
  if(!e) e = window.event; //IE
  posX = e.clientX - parseInt(fdiv.style.left);
  posY = e.clientY - parseInt(fdiv.style.top);
  document.onmousemove = mousemove;      
document.onmouseup = function()
  document.onmousemove = null;
function mousemove(ev)
  if(ev==null) ev = window.event;//IE
  fdiv.style.left = (ev.clientX - posX) + "px";
  fdiv.style.top = (ev.clientY - posY) + "px";

Hopefully, this article has helped you with your javascript programming.

Related articles: