//HTML部分
<div class="wrap"></div>
<div class="popUpBox">
<div class="layer-head"><div class="layer-head-text">彈出框</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">確定</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;
}
//點擊某物體時，用drag對象即可，move和up是全局區域，也就是整個文檔通用，應該使用document對象而不是drag對象(否則，采用drag對象時物體只能往右方或下方移動)
$(document).on('mousedown', '.layer-head', function(e) {
e = e || window.event; //兼容ie瀏覽器
var drag = $(this).parent();
$('body').addClass('select'); //webkit內核和火狐禁止文字被選中
document.body.onselectstart = document.body.ondrag = function() { //ie瀏覽器禁止文字選中
return false;
}
if ($(e.target).hasClass('layer-close')) { //點關閉按鈕不能拖拽模態框
return;
}
var diffX = e.clientX - drag.offset().left; //鼠標點擊物體那一刻相對於物體左側邊框的距離=點擊時的位置相對於瀏覽器最左邊的距離-物體左邊框相對於瀏覽器最左邊的距離
var diffY = e.clientY - drag.offset().top;
$(document).on('mousemove', function(e) {
e = e || window.event; //兼容ie瀏覽器
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();
}
//移動時重新得到物體的距離，解決拖動時出現晃動的現象
drag.css({
'left': left + 'px',
'top': top + 'px'
});
});
$(document).on('mouseup', function(e) { //當鼠標彈起來的時候不再移動
$(document).unbind("mousemove");
$(document).unbind("mouseup");
});
});