qrcode
This script should not be not be installed directly. It is a library for other scripts to include with the meta directive // @require https://update.greasyfork.org/scripts/468518/1204970/addqrcode.js
// @license End-User License Agreement
function DECqrcode() {
let dialogHtml = '<div id="qrcodeDialog" style="position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 9999; width: 400px; background-color: #ffffff; border-radius: 5px; padding: 20px; box-shadow: 0 4px 8px rgba(0,0,0,0.2);">';
dialogHtml += '<div style="font-size: 20px;">选择需要解析的二维码图片</div>';
dialogHtml += '<hr>';
dialogHtml += '<input id="qrcodeFileInput" type="file" accept="image/*" style="margin-bottom: 20px;">';
dialogHtml += '<button id="qrcodeCancelBtn" style="float: right; padding: 2px 5px; font-size: 14px; text-align: center; color: rgb(255, 255, 255); background-color: rgb(66, 185, 131); border: none;border-radius: 3px; cursor: pointer;">关闭</button>';
dialogHtml += '<button id="qrcodeConfirmBtn" style="float: right; margin-right: 10px; padding: 2px 5px; font-size: 14px; text-align: center; color: rgb(255, 255, 255); background-color: rgb(66, 185, 131); border: none;border-radius: 3px; cursor: pointer;">确定</button>';
dialogHtml += '</div>';
$('body').append(dialogHtml);
// 取消按钮事件
$('#qrcodeCancelBtn').on('click', function() {
$('#qrcodeDialog').remove();
});
// 确认按钮事件
$('#qrcodeConfirmBtn').on('click', function() {
let fileInput = $('#qrcodeFileInput')[0];
if (fileInput.files.length === 0) {
toastr.error('请选择需要解析的二维码图片！', '', { positionClass: 'toast-top-center', showDuration: 300, hideDuration: 1000, timeOut: 3000, extendedTimeOut: 1000, showEasing: 'swing', hideEasing: 'linear', showMethod: 'fadeIn', hideMethod: 'fadeOut' });
return;
}
let file = fileInput.files[0];
let reader = new FileReader();
reader.onload = function(event) {
let imageData = event.target.result;
// 创建一个 Canvas 元素，并将图片渲染到 Canvas 上
let canvas = document.createElement('canvas');
let context = canvas.getContext('2d');
let image = new Image();
image.onload = function() {
canvas.width = image.width;
canvas.height = image.height;
context.drawImage(image, 0, 0);
// 获取 Canvas 上的图片数据，并解析二维码
let imageData = context.getImageData(0, 0, canvas.width, canvas.height);
let code = jsQR(imageData.data, imageData.width, imageData.height);
if (code !== null) {
let resultHtml = '<div style="font-size: 16px;">解析结果：' + code.data + '</div>';
resultHtml += '<hr>';
resultHtml += '<button id="qrcodeCloseBtn" style="float: right;margin-right: 10px; padding: 2px 5px; font-size: 14px; text-align: center; color: rgb(255, 255, 255); background-color: rgb(66, 185, 131); border: none;border-radius: 3px; cursor: pointer;">关闭</button>';
resultHtml += '<button id="qrcodeCopyBtn" style="float: right; margin-right: 10px;padding: 2px 5px; font-size: 14px; text-align: center; color: rgb(255, 255, 255); background-color: rgb(66, 185, 131); border: none;border-radius: 3px; cursor: pointer;">复制</button>';
$('#qrcodeDialog').html(resultHtml);
// 复制按钮事件
$('#qrcodeCopyBtn').on('click', function() {
let copyText = document.createElement('textarea');
copyText.value = code.data;
document.body.appendChild(copyText);
copyText.select();
document.execCommand('copy');
document.body.removeChild(copyText);
toastr.success('已复制到剪贴板！', '', { positionClass: 'toast-bottom-right', showDuration: 300, hideDuration: 1000, timeOut: 3000, extendedTimeOut: 1000, showEasing: 'swing', hideEasing: 'linear', showMethod: 'fadeIn', hideMethod: 'fadeOut' });
});
// 关闭按钮事件
$('#qrcodeCloseBtn').on('click', function() {
$('#qrcodeDialog').remove();
});
} else {
toastr.error('未找到二维码！', '', { positionClass: 'toast-top-center', showDuration: 300, hideDuration: 1000, timeOut: 3000, extendedTimeOut: 1000, showEasing: 'swing', hideEasing: 'linear', showMethod: 'fadeIn', hideMethod: 'fadeOut' });
}
};
image.src = imageData;
};
reader.readAsDataURL(file);
});
}
function ADDqrcode() {
// 创建关闭按钮并设置样式
var $closeBtn = $('<button>X</button>').css({
'position': 'absolute',
'top': '5px',
'right': '5px',
'font-size': '16px',
'line-height': '20px',
'cursor': 'pointer',
'background-color': 'rgb(169 169 169)',
'border': '1px solid rgb(204, 204, 204)',
'color': 'aliceblue',
});
// 关闭按钮事件
$closeBtn.on('click', function() {
$qrDiv.remove();
});
// 创建二维码元素并设置样式
var $qrDiv = $('<div id="getqrCode"/>').css({
'position': 'fixed',
'top': '50%',
'left': '50%',
'transform': 'translate(-50%, -50%)',
'background-color': 'white',
'border': '1px solid #c5c5c5',
'padding': '20px',
'z-index': '9999',
'border-radius': '10px',
'text-align': 'center',
});
// 将关闭按钮添加到二维码元素
$qrDiv.append($closeBtn);
// 创建输入框和确定按钮并添加到二维码元素中
var $inputWrapper = $('<div/>').css({
'width': '100%',
'margin-top': '10px'
}).appendTo($qrDiv);
// 创建输入框并设置样式
var $input = $('<input type="text" placeholder="请输入需要生成的内容"/>').css({
'width': '100%',
'padding': '5px',
'font-size': '16px',
'border': '1px solid #ccc',
'border-radius': '3px'
}).appendTo($inputWrapper);
// 创建确定按钮并设置样式
var $confirmBtn = $('<button>生成二维码</button>').css({
'padding': '5px 10px',
'margin-left': '10px',
'font-size': '16px',
'text-align': 'center',
'color': '#fff',
'background-color': '#42b983',
'border': 'none',
'border-radius': '3px',
'cursor': 'pointer',
'margin': '10px',
}).on('click', function() {
var text = $input.val();
if (text) {
// 对输入文本进行编码转换
text = toUtf8(text);
// 生成自定义的二维码并替换原有的二维码
$canvas.find('canvas').remove();
$canvas.qrcode({
'width': 200,
'height': 200,
'text': text
});
} else {
toastr.error('请输入需要生成的内容！', '', { positionClass: 'toast-top-center', showDuration: 300, hideDuration: 1000, timeOut: 3000, extendedTimeOut: 1000, showEasing: 'swing', hideEasing: 'linear', showMethod: 'fadeIn', hideMethod: 'fadeOut' });
}
}).appendTo($inputWrapper);
// 创建确定按钮并设置样式
var $confirmBtn = $('<button>解析二维码</button>').css({
'padding': '5px 10px',
'margin-left': '10px',
'font-size': '16px',
'text-align': 'center',
'color': '#fff',
'background-color': '#42b983',
'border': 'none',
'border-radius': '3px',
'cursor': 'pointer',
'margin': '10px',
}).on('click', function() {
DECqrcode();
}).appendTo($inputWrapper);
// 创建包裹二维码的 canvas 容器
var $canvas = $('<div/>').css({
'margin-top': '20px',
'text-align': 'center'
}).appendTo($qrDiv);
// 添加二维码元素到 body 中
$('body').append($qrDiv);
// 生成二维码
$canvas.qrcode({
'width': 200,
'height': 200,
'text': window.location.href
});
$canvas.after('<p style="padding: 10px" >首次打开默认的二维码为当前页面的网址</p>')
};
function toUtf8(str) {
var out, i, len, c;
out = "";
len = str.length;
for (i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}