//HTML部分
<div class="wrap"></div>
<div class="popUpBox">
<div class="layer-head"><div class="layer-head-text">弹出框</div><div class="layer-close"></div></div>
<div class="layer-body"></div>
<div class="layer-footer">
<div class="layer-footer-button-group">
<div class="layer-footer-button layer-sure">确定</div>
<div class="layer-footer-button layer-cancel">取消</div>
</div>
</div>
</div>
//CSS部分
.wrap {
position: fixed;
left: 0;
top: 0;
background-color: #000;
z-index: 10000;
opacity: 0.3;
}
.popUpBox {
height: 400px;
width: 700px;
position: absolute;
overflow: hidden;
box-sizing: border-box;
z-index: 10000;
background-color: #fff;
border-radius: 2px;
box-shadow: 1px 1px 50px rgba(0,0,0,.3);
}
.layer-head {
width: 100%;
height: 35px;
border-bottom: 1px solid #eee;
box-sizing: border-box;
background-color: #f8f8f8;
border-radius: 4px 4px 0 0;
cursor: move;
}
.layer-head-text {
padding-left: 20px;
font-size: 14px;
color: #333;
height: 35px;
line-height: 34px;
float: left;
}
.layer-close {
float: right;
width: 16px;
height: 16px;
background-image: url(../images/close_hover.png);
background-repeat:no-repeat;
background-size:100% 100%;
position: absolute;
top: 10px;
right: 12px;
cursor: pointer;
}
.layer-body {
width: 100%;
height: calc(100% - 73px);
}
.layer-footer {
width: 100%;
height: 38px;
border-top: 1px solid #eee;
box-sizing: border-box;
background-color: #f8f8f8;
border-radius: 0 0 4px 4px;
}
.layer-footer-button-group {
padding: 5px 0 5px 576px;
height: 28px;
}
.layer-footer-button {
width: 56px;
height: 28px;
line-height: 28px;
margin-right: 6px;
box-sizing: border-box;
font-size: 12px;
float: left;
text-align: center;
cursor: pointer;
}
.layer-sure {
border: 1px solid #4898d5;
background-color: #2e8ded;
color: #fff;
}
.layer-cancel {
border: 1px solid #dedede;
background-color: #f1f1f1;
color: #333;
}
//点击某物体时，用drag对象即可，move和up是全局区域，也就是整个文档通用，应该使用document对象而不是drag对象(否则，采用drag对象时物体只能往右方或下方移动)
$(document).on('mousedown', '.layer-head', function(e) {
e = e || window.event; //兼容ie浏览器
var drag = $(this).parent();
$('body').addClass('select'); //webkit内核和火狐禁止文字被选中
document.body.onselectstart = document.body.ondrag = function() { //ie浏览器禁止文字选中
return false;
}
if ($(e.target).hasClass('layer-close')) { //点关闭按钮不能拖拽模态框
return;
}
var diffX = e.clientX - drag.offset().left; //鼠标点击物体那一刻相对于物体左侧边框的距离=点击时的位置相对于浏览器最左边的距离-物体左边框相对于浏览器最左边的距离
var diffY = e.clientY - drag.offset().top;
$(document).on('mousemove', function(e) {
e = e || window.event; //兼容ie浏览器
var left = e.clientX - diffX;
var top = e.clientY - diffY;
if (left < 0) {
left = 0;
} else if (left > window.innerWidth - drag.width()) {
left = window.innerWidth - drag.width();
}
if (top < 0) {
top = 0;
} else if (top > window.innerHeight - drag.height()){
top = window.innerHeight - drag.height();
}
//移动时重新得到物体的距离，解决拖动时出现晃动的现象
drag.css({
'left': left + 'px',
'top': top + 'px'
});
});
$(document).on('mouseup', function(e) { //当鼠标弹起来的时候不再移动
$(document).unbind("mousemove");
$(document).unbind("mouseup");
});
});
原文链接:https://www.cnblogs.com/yingDaisy/p/10711484.html
如有疑问请与原作者联系
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