模拟电子签章盖章效果的jQuery插件源码-工具盒子

客户提了个需求，需要在已审核的文档上加盖公章，网上找了找没有现成的，自己动手丰衣足食

老规矩，上图看效果：

可以内嵌在各种容器中，已包装成jQuery插件，调用方便。点击"盖章"按钮添加一个新章，可以自由拖动位置，点击确定后保存并触发回调函数方便处理保存，有需要的下载试试。

[javascript]
++复制代码++ 代码如下:

/*
desc:jQuery模拟盖章
author:hyf
date:2012-11-08
*/
;$.fn.zSign = function (options) {
var _s = $.extend({
img: '',
width: 120,
height: 120,
offset: 8, //边界值
callBack: null
}, options || {});

var _parent = $(this).addClass('zsign');
var range = {
minX: _s.offset,
minY: _s.offset,
maxX: _parent.width() - _s.width - _s.offset - 18, //扣去2个padding=8px以及2个边框1px
maxY: _parent.height() - _s.height - _s.offset - 18
};

var _btnPanel = $("<div class='panel'><button class='btn add' >盖章</button><button class='btn cancel'>关闭</button></div>").appendTo(_parent);
var _html = "<div class='sign' style='height:" + _s.height + "px;width:" + _s.width + "px;top:" + _s.offset + "px;left:" + _s.offset + "px'><img src='" + _s.img + "' draggable='false'/><button class='btn ok' >确定</button><button class='btn del' >删除</button></div>";

//绑定移动事件
sign.on('mousedown', function (e) {
sign.data('x', e.clientX);
sign.data('y', e.clientY);
var position = sign.position();
$(document).on('mousemove', function (e1) {
var x = e1.clientX - sign.data('x') + position.left;
var y = e1.clientY - sign.data('y') + position.top;
x = x < range.minX ? range.minX : x;
x = x > range.maxX ? range.maxX : x;
y = y < range.minY ? range.minY : y;
y = y > range.maxY ? range.maxY : y;

sign.css({ left: x, top: y });
}).on('mouseup', function () {
$(this).off('mousemove').off('mouseup');
});
});
});

$('.cancel', _btnPanel).click(function () {
var r = true;
if (_add.attr('disabled') == 'disabled') {
if (!confirm("未确定的盖章将被取消，确定要关闭吗？")) {
r = false;
}
}
if (r) {
//删除未确定位置的盖章
$('.sign:not(.ok)', _parent).remove();
_btnPanel.remove();
}
});
};

[css]
++复制代码++ 代码如下:

.zsign .panel
{
position: absolute;
top: 8px;
right: 8px;
}
.zsign .btn
{
display: inline-block;
padding: 4px 10px 4px;
margin-bottom: 0;
font-size: 13px;
line-height: 18px;
color: #333;
text-align: center;
text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
vertical-align: middle;
background-color: whiteSmoke;
background-image: -webkit-gradient(linear, 0 0, 0 100%, from(white), to(#E6E6E6));
background-repeat: repeat-x;
border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
border: 1px solid #CCC;
border-bottom-color: #B3B3B3;
-webkit-border-radius: 4px;
box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
cursor: pointer;
-webkit-user-select: none;
}
.zsign .btn:hover
{
color: #333;
text-decoration: none;
background-color: #E6E6E6;
background-position: 0 -15px;
-webkit-transition: background-position 0.1s linear;
}
.zsign .btn[disabled]
{
cursor: default;
background-image: none;
background-color: #E6E6E6;
opacity: 0.65;
filter: alpha(opacity=65);
-webkit-box-shadow: none;
-moz-box-shadow: none;
box-shadow: none;
}
.zsign .cursor
{
cursor: none;
}
.zsign .show
{
display: block;
}
.zsign .hide
{
display: none;
}

.zsign .sign
{
position: absolute;
cursor: move;
border: 1px dashed #ccc;
padding: 8px;
display: -webkit-box;
-webkit-box-pack: center;
-webkit-box-align: center;
}
.zsign .sign.ok
{
cursor: default;
border-color:transparent;
}
.zsign .sign img
{
max-height: 100%;
max-width: 100%;
}
.zsign .sign .btn
{
padding: 2px 6px;
font-size: 11px;
line-height: 14px;
position: absolute;
}

.zsign .sign .btn.del
{
bottom: 4px;
right: 4px;
}
.zsign .sign .btn.ok
{
bottom: 4px;
right: 50px;
}

[html]
++复制代码++ 代码如下:

<!DOCTYPE html>
<html>
<head>
<title>测试</title>
<link href="jquery.zsign.css" rel="stylesheet" type="text/css" />
<script src="jquery-1.7.1.min.js" type="text/javascript"></script>
<script src="jquery.zsign.js" type="text/javascript"></script>
</head>
<body>
<div id="test" style="width:800px;height:500px;border:1px solid red;margin:40px auto; position:relative;"></div>

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模拟电子签章盖章效果的jQuery插件源码

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