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signature.html
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signature.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta content="yes" name="apple-mobile-web-app-capable"/>
<meta content="yes" name="apple-touch-fullscreen">
<meta content="black" name="apple-mobile-web-app-status-bar-style"/>
<meta content="telephone=no,email=no" name="format-detection">
<link href="https://cdn.bootcss.com/normalize/8.0.1/normalize.min.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/jquery-weui/1.2.1/css/jquery-weui.css" rel="stylesheet">
<link href="https://cdn.bootcss.com/jquery-weui/1.2.1/css/jquery-weui.min.css" rel="stylesheet">
<title>在线签字</title>
<style>
body {
background: #f4f4f4;
overflow: hidden;
width: 100%;
height: 100%;
}
.g-signature-title {
font-size: .9rem;
color: #666;
font-weight: bold;
text-align: center;
transform: rotate(90deg);
-ms-transform: rotate(90deg);
-moz-transform: rotate(90deg);
-webkit-transform: rotate(90deg);
-o-transform: rotate(90deg);
position: absolute;
right: -15.4rem;
top: 16rem;
display: flex;
align-items: center;
overflow: hidden;
width: 100vh;
}
.g-signature-title div {
flex: 1;
}
.g-signature-title #img {
width: 1.5rem;
}
.g-signatrue-body {
background: #fff;
height: 100vh;
margin-left: 4.2rem;
width: 64vw;
}
.g-signatrue-body > .jSignature {
height: 100% !important;
}
.g-btns {
text-align: center;
margin-top: 1rem;
transform: rotate(90deg);
-ms-transform: rotate(90deg); /* IE 9 */
-moz-transform: rotate(90deg); /* Firefox */
-webkit-transform: rotate(90deg); /* Safari 和 Chrome */
-o-transform: rotate(90deg);
position: absolute;
top: 14rem;
left: -6rem;
}
.g-btns > button {
width: 7.5rem;
height: 2.25rem;
font-size: .9rem;
font-weight: bold;
border: none;
border-radius: 1rem;
}
.u-reset {
background: #ddd;
color: #666;
margin-right: .5rem;
}
.u-submit {
background: #007AFF;
color: #fff;
margin-left: .5rem;
}
#load {
width: 100%;
height: 100%;
z-index: 99999;
position: absolute;
top: 0;
left: 0;
background: rgba(0, 0, 0, .3);
}
#load div {
width: 100%;
height: 100%;
display: flex;
align-items: center;
justify-content: center;
}
#load #load-msg {
transform: rotate(90deg);
-ms-transform: rotate(90deg); /* IE 9 */
-moz-transform: rotate(90deg); /* Firefox */
-webkit-transform: rotate(90deg); /* Safari 和 Chrome */
-o-transform: rotate(90deg);
color: white;
padding: .4rem .8rem;
border-radius: .4rem;
background: rgba(0, 0, 0, 0.6);
}
</style>
</head>
<body>
<div class="g-signature-title">
<img src="/static/img/back1.png" id="img"/>
<div>本人签名</div>
</div>
<div class="g-signatrue-body">
</div>
<div class="g-btns">
<button class="u-reset">重新签字</button>
<button class="u-submit">提交</button>
</div>
<div id="load" style="display: none">
<div>
<span id="load-msg">提示消息</span>
</div>
</div>
<form id="form" method="post" hidden><input name="sign"></form>
</body>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdn.bootcss.com/jquery-weui/1.2.1/js/jquery-weui.js"></script>
<script src="https://cdn.bootcss.com/jSignature/2.1.2/flashcanvas.min.js"></script>
<script src="https://cdn.bootcss.com/jSignature/2.1.3/jSignature.min.js"></script>
<script>
//初始化签字插件
new Promise(function (resolve) {
$(".g-signatrue-body").jSignature({color: "#000000", lineWidth: 2});
resolve()
}).then(function () {
var hiddenWidth = $(".g-signatrue-body").css('width');
var hiddenHeight = $(".g-signatrue-body").css('height');
/**
* signatureData
* 用于存储用户签名数据
* @type {string}
*/
var signatureData = '';
/**
* isDraw
* 用于判断用户是否已签字，是则true,否则false,默认false.
* @type {boolean}
*/
var isDraw = false;
//用户触摸事件，只要有触摸，isDraw则变为true.
$('body').on('touchmove', '.jSignature', function () {
isDraw = true;
});
//重置按钮点击事件，只要点击重置，isDraw则恢复默认.
$('.u-reset').on('click', function () {
$(".g-signatrue-body").jSignature('reset');
isDraw = false;
});
//用户提交签名
$('.u-submit').on('click', function () {
$('.loadingOther').show();
//重置变量并获取数据
signatureData = '';
signatureData = $(".g-signatrue-body").jSignature('getData', 'default');
$('.hide-canvas').remove();
//这里请勿修改，因为是签名旋转90度，所以之前的长就显示现在的宽，之前的宽就是现在的长。
$('body').append('<canvas style="display: none;" class="hide-canvas" width="' + hiddenHeight + '" height="' + hiddenWidth + '"></canvas>');
var canvas = document.querySelector('.hide-canvas');
var ctx = canvas.getContext("2d");
var img = new Image();
img.src = signatureData;
img.onload = function (ev) {
var width = Math.round($('.jSignature').css('height').replace('px', '') / 2);
var height = Math.round($('.jSignature').css('width').replace('px', '') / 2);
ctx.save();
ctx.translate(width, height);
ctx.rotate(-90 * Math.PI / 180)
ctx.drawImage(img, -img.width / 2, -img.height / 2);
ctx.restore();
if (!isDraw) {
toast('请签名后再提交');
} else {
load(true);
$.post('/api/sign', {sign: canvas.toDataURL("image/jpeg", 0.8)}, (res, status) => {
if (typeof res.code != 'undefined') {
if (res.code == 0) {
toast(res.msg);
setTimeout(() => {
window.location.href = '/';//返回到首页
}, 2000);
} else {
toast(res.msg);
}
} else {
toast('网络错误');
}
});
}
};
});
})
$('#img').on("click", function () {
window.history.back(-1);
})
function toast(msg) {
show(msg, true);
setTimeout(() => {
//停止提示
show();
}, 2000);
}
function load(load) {
if (load) {
//加载中
show('正在提交中。。。', true);
} else {
//对话框消失
show();
}
}
function show(msg, show) {
if (show) {
$('#load').css('display', 'block');
$('#load-msg').text(msg);
} else {
$('#load').css('display', 'none');
}
}
</script>
</html>