纽威
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/*
desc:jQuery模拟盖章
author:hyf
date:2012-11-08
*/
;$.fn.zSign = function (options) {
var _s = $.extend({
img: '',
width: 150,
height: 150,
offset: 30, //边界值
callBack: null
}, options || {});
var _parent = $(this).addClass('zsign');
var range = {
minX: _s.offset,
minY: _s.offset,
maxX: $(window).width(), //扣去2个padding=8px以及2个边框1px
maxY: $(window).height()
};
var _btnPanel = $("<div class='panels'><button class='btn btn-default add ' >盖 章</button><button class='btn btn-default 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 btn-default ok' >确定</button><button class='btn btn-default 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();
}
});
};