jquery实现可拖拽弹出层特效
功能很简单，却非常的实用，代码更加的简洁，这里就不多废话了
代码如下:
<!doctype html>
<html xmlns="https://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css">
*
{
margin: 0px;
padding: 0px;
}
.dragbox
{
width: 400px;
height: 200px;
position: absolute;
top: 40%;
left: 40%;
background: #e8e8e8;
z-index: 8001;
}
.dragbox > p
{
height: 30px;
cursor: move;
background: #00ff21;
position: relative;
}
.ui-mask
{
width: 100%;
height: 100%;
background: #000;
position: absolute;
top: 0px;
z-index: 8000;
opacity: 0.4;
filter: alpha(opacity=40);
}
</style>
<script src="framework/base/jquery-1.8.3.min.js"></script>
<script type="text/javascript"></script>
<script type="text/javascript">
$(function () {
var mouseoffx = 0;
var mouseoffy = 0;
var isdrag = false;
$(".dragbox p:eq(0)").unbind(".click").on("mousedown", function (ev) {
mouseoffx = ev.clientx - $(".dragbox p:eq(0)").offset().left;
mouseoffy = ev.clienty - $(".dragbox p:eq(0)").offset().top;
isdrag = true;
})
$(document).unbind(".click").on("mousemove", function (ev) {
var moursex = ev.clientx, moursey = ev.clienty;
var movex = 0, movey = 0;
if (isdrag === true) {
movex = moursex - mouseoffx;
movey = moursey - mouseoffy;
var maxx = $(window).outerwidth(false) - $(".dragbox").outerwidth(false);
var maxy = $(window).outerheight(false) - $(".dragbox").outerheight(false);
movex = math.min(maxx, math.max(0, movex));
movey = math.min(maxy, math.max(0, movey));
$(".dragbox").css({ "left": movex, "top": movey });
}
});
$(document).unbind(".click").on("mouseup", function () {
isdrag = false;
});
});
</script>
</head>
<body>
test
<p class="ui-mask" id="mask" onselectstart="return false"></p>
<p class="dragbox">
<p>
</p>
</p>
</body>
</html>
上一篇： git操作：撤销更改的文件