本文实例讲述了jQuery实现的简单对话框拖动功能。分享给大家供大家参考，具体如下：<!D
本文实例讲述了jQuery实现的简单对话框拖动功能。分享给大家供大家参考，具体如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>www.jb51.net jquery 拖动</title>
<meta name="description" content="">
<meta name="keywords" content="">
<link href="" rel=" rel="external nofollow" stylesheet">
<style>
*{margin: 0;padding: 0;box-sizing: border-box;-moz-user-select:none;}
body {font: 12px/16px bold 'microsoft yahei,微软雅黑';}
.dragContainer {
width: 382px;
height: 395px;
position: absolute;
top: 50%;
left: 50%;
border: 1px solid red;
margin-left: -191px;
margin-top: -197.5px;
}
.dragContainer .dragtitle {
width: 100%;
height: 35px;
border-bottom: 1px solid red;
text-align: center;
line-height: 35px;
}
.dragContainer .dragtitle:hover {
cursor: move;
}
.dragContainer .content {
width: 100%;
height: 360px;
}
p.buttonGroup {
width: 100%;
text-align: center;
position: absolute;
bottom: 0;
left: 0;
right: 0;
padding: 5px;
border-top: 1px solid red;
}
p.buttonGroup input {
padding: 5px 10px;
color: white;
}
p.buttonGroup input:hover {
cursor: pointer;
cursor: hand;
}
p.buttonGroup input:first-child {
margin-left: 25px;
background: blue;
}
p.buttonGroup input.btn2 {
margin-left: 15px;
background: red;
}
</style>
</head>
<body>
<div class="dragContainer" id="drag" style="'position:absolute;" >
<p class="dragtitle">标题栏</p>
<div class="content"></div>
<p class="buttonGroup"><input type="button" value="确定"><input type="button" value="取消" class="btn2"></p>
</div>
<script src="http://cdn.bootcss.com/jquery/2.1.0/jquery.js"></script>
<script type="text/javascript">
var mydrag={
mousePoint: {x:0,y:0}, //初始化坐标
drag: function(){
var that=this; //保存当前对象即(mydrag)，如果不保存，在mousedown()里访问不了mydrag这个对象
var targetid=$(".dragtitle");
targetid.mousedown(function(event){
var e=event;
var offsetLeft=targetid.offset().left; //当前div的左偏移距离
var offsetTop=targetid.offset().top; //当前div的顶部偏移距离
that.mousePoint.x=e.clientX-offsetLeft;//计算鼠标点击时离它自己div的横向距离
that.mousePoint.y=e.clientY-offsetTop; //计算鼠标点击时离它自己div的纵向距离
$(document).bind('mousemove',move);
e.stopPropagation();
});
function move(event){
var e =event;
var Left=e.clientX-that.mousePoint.x; //移动后，重新计算左偏移和顶部偏移距离
var Top=e.clientY-that.mousePoint.y;
$("#drag").css({'top':Top,'left':Left,'margin':0});
$(document).bind('mouseup',end);
e.stopPropagation();
};
function end(event){
var e = event;
$(document).unbind('mousemove', move);
$(document).unbind('mouseup',end);
e.stopPropagation();
};
}
}
mydrag.drag();
</script>
</body>
</html>
使用在线HTML/CSS/JavaScript代码运行工具 http://tools.jb51.net/code/HtmlJsRun测试，运行效果如下：
