模拟电子签章盖章效果的jQuery插件
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]
/*
desc:jQuery模拟盖章
author:hyf
date:2012-11-08
*/ www.zzzyk.com
;$.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>";
var _add = $('.add', _btnPanel).click(function (e) {
_add.attr('disabled', 'disabled');
var sign = $(_html).appendTo(_parent);
$('.ok', sign).click(function () {
//确定盖章
sign.addClass('ok').off('mousedown').find('.btn').remove();
_add.removeAttr('disabled');
if (_s.callBack) {
_s.callBack.call(this, { img: _s.img, top: parseInt(sign.css('top')), left: parseInt(sign.css('left')) });
}
});
$('.del', sign).click(function () {
//取消盖章
sign.remove();
_add.removeAttr('disabled');
});
//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]
.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;
colo
补充:web前端 , JavaScript ,