395 lines
11 KiB
JavaScript
395 lines
11 KiB
JavaScript
import Fingerprint2 from 'fingerprintjs2';//获取浏览器唯一标识
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const isEmail = (email) => {
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// let reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,})$/
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let reg = /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/
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let result = reg.test(email)
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return result
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}
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const getUploadUrl = () => {
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let url = process.env.VUE_APP_BASE_URL || ''
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// let url = "http://18.167.251.121:10086"
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return url
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}
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function dataURLtoBlob(dataurl) {//吧data url转为blob对象
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var arr = dataurl.split(',');
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var mime = arr[0].match(/:(.*?);/)[1];
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var bstr = atob(arr[1]);
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var n = bstr.length;
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var u8arr = new Uint8Array(n);
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while (n--) {
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u8arr[n] = bstr.charCodeAt(n);
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}
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return new Blob([u8arr], { type: mime });
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}
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function blobToFile(blob, fileName) {//给blob文件设置名字和日期
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blob.lastModifiedDate = new Date();
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blob.name = fileName;
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return blob;
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}
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//下载图片
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function downloadIamge(imgsrc, name) { // 下载图片地址和图片名
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var image = new Image()
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// 解决跨域 Canvas 污染问题
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image.setAttribute('crossOrigin', 'anonymous')
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image.onload = function () {
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var canvas = document.createElement('canvas')
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canvas.width = image.width
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canvas.height = image.height
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var context = canvas.getContext('2d')
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context.drawImage(image, 0, 0, image.width, image.height)
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var url = canvas.toDataURL('image/jpeg') // 得到图片的base64编码数据
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var a = document.createElement('a') // 生成一个a元素
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var event = new MouseEvent('click') // 创建一个单击事件
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a.download = name || 'generate' // 设置图片名称
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a.href = url // 将生成的URL设置为a.href属性
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a.target = '_blank'
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a.dispatchEvent(event) // 触发a的单击事件
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}
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image.src = imgsrc
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}
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function dataURLtoFile(dataurl, filename) {//吧url转为文件对象，指定文件名称
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var arr = dataurl.split(','), mime = arr[0].match(/:(.*?);/)[1],
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bstr = atob(arr[1]), n = bstr.length, u8arr = new Uint8Array(n);
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while (n--) {
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u8arr[n] = bstr.charCodeAt(n);
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}
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var blob = dataURLtoBlob(dataurl);
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return blobToFile(blob, filename);
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}
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const base64toFile = (dataurl, filename = 'file') => {//转换base64
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let arr = dataurl.split(',')
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let mime = arr[0].match(/:(.*?);/)[1]
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let suffix = mime.split('/')[1]
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let bstr = atob(arr[1])
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let n = bstr.length
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let u8arr = new Uint8Array(n)
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while (n--) {
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u8arr[n] = bstr.charCodeAt(n)
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}
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return new File([u8arr], `${filename}.${suffix}`, {
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type: mime
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})
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}
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function rgbToHsv([R, G, B]) {//根据rgb获取hsv
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R /= 255
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G /= 255
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B /= 255
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const max = Math.max(R, G, B)
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const min = Math.min(R, G, B)
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const delta = max - min
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var H, S, V
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if (delta === 0) {
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H = 0;
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} else if (max === R) {
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H = ((G - B) / delta) % 6;
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} else if (max === G) {
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H = (B - R) / delta + 2;
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} else { // max === B
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H = (R - G) / delta + 4;
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}
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H = Math.round(H * 60); // 范围为 0-360
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if (H < 0) {
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H = 360 + H
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}
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if (max === 0) {
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S = 0;
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} else {
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S = delta / max;
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}
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S = Math.round(S * 100); // 范围为 0-100
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V = Math.round(max * 100); // 范围为 0-100
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return [H, S, V]
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}
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const formatTime = (timestamp, fmt) => {//吧时间戳转为YYYY-MM-DD hh:mm:ss格式
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// date = new Date(), fmt = 'MM/dd/yyyy';
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let date = new Date();
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date.setTime(timestamp * 1000);
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if (!fmt) {
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formatRule ? (fmt = formatRule) : (fmt = "YYYY-MM-DD hh:mm:ss");
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}
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// console.log(formatRule)
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let o = {
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'M+': date.getMonth() + 1, // 月份
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'D+': date.getDate(), // 日
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'h+': date.getHours(), // 小时
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'm+': date.getMinutes(), // 分
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's+': date.getSeconds(), // 秒
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'q+': Math.floor((date.getMonth() + 3) / 3), // 季度
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'S+': date.getMilliseconds(), // 毫秒
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'a': date.getHours() > 12
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? 'PM'
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: 'AM' // 上午还是下午
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};
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if (/(Y+)/.test(fmt)) {
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fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length));
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}
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if (/(a)/.test(fmt) && o['h+'] > 12) {
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o['h+'] = o['h+'] - 12
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}
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for (let k in o) {
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if (new RegExp('(' + k + ')').test(fmt)) {
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fmt = fmt.replace(RegExp.$1, (RegExp.$1.length == 1)
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? (o[k])
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: (('00' + o[k]).substr(('' + o[k]).length)));
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}
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}
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return fmt;
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}
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const isMoible = () => {//判断是否是移动端
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let is_mobile = navigator.userAgent.toLowerCase().match(/(ipad|ipod|iphone|android|coolpad|mmp|smartphone|midp|wap|xoom|symbian|j2me|blackberry|wince)/i) != null;
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// alert(navigator.userAgent.toLowerCase())
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var isiPad = (navigator.maxTouchPoints && navigator.maxTouchPoints > 0);
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if (is_mobile) {
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return true//判断是否在正则内
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} else if(window.matchMedia("(pointer:fine)").matches){
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return false//判断是否支持鼠标
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}else{
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isiPad//判断触摸点
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}
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}
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function getBrowserInfo() {//获取是什么浏览器
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var agent = navigator.userAgent.toLowerCase();
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var userAgent = navigator.userAgent;
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var regStr_ie = /msie [\d.]+;/gi;
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var regStr_ff = /firefox\/[\d.]+/gi
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var regStr_chrome = /chrome\/[\d.]+/gi;
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var regStr_saf = /safari\/[\d.]+/gi;
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var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; //判断是否IE<11浏览器
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var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; //判断是否IE的Edge浏览器
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//IE
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if (agent.indexOf("msie") > 0) {
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return agent.match(regStr_ie);
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}
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//firefox
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if (agent.indexOf("firefox") > 0) {
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return agent.match(regStr_ff);
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}
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//Chrome
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if (agent.indexOf("chrome") > 0) {
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return agent.match(regStr_chrome);
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}
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//Safari
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if (agent.indexOf("safari") > 0 && agent.indexOf("chrome") < 0) {
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return agent.match(regStr_saf);
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}
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}
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async function murmur(){//生成唯一标识 ，暂时没有使用
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return await new Promise((resolve,reject)=>{
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Fingerprint2.get(function (components) {
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const values = components.map(function (
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component,
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index
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) {
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if (index === 0) {
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//把微信浏览器里UA的wifi或4G等网络替换成空,不然切换网络会ID不一样
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return component.value.replace(/\bNetType\/\w+\b/, "");
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}
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return component.value;
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});
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// 生成最终id murmur
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let murmur = Fingerprint2.x64hash128(values.join(""), 31);
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resolve(murmur)
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});
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})
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}
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/**
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* @description: 计算canvas渐变起始坐标
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* @param {number} canvas width
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* @param {number} canvas height
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* @param {number} angle 角度
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* @return {*}
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*/
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function calculateGradientCoordinate(width,height,angle) {
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if (angle >= 360) angle = angle - 360;
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if (angle < 0) angle = angle + 360;
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angle = Math.round(angle);
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// 当渐变轴垂直于矩形水平边上的两种结果
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if (angle === 0) {
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return {
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x0: Math.round(width / 2),
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y0: height,
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x1: Math.round(width / 2),
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y1: 0,
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};
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}
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if (angle === 180) {
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return {
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x0: Math.round(width / 2),
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y0: 0,
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x1: Math.round(width / 2),
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y1: height,
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};
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}
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// 当渐变轴垂直于矩形垂直边上的两种结果
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if (angle === 90) {
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return {
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x0: 0,
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y0: Math.round(height / 2),
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x1: width,
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y1: Math.round(height / 2),
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};
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}
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if (angle === 270) {
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return {
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x0: width,
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y0: Math.round(height / 2),
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x1: 0,
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y1: Math.round(height / 2),
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};
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}
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// 从矩形左下角至右上角的对角线的角度
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const alpha = Math.round(
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(Math.asin(width / Math.sqrt(Math.pow(width, 2) + Math.pow(height, 2))) *
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180) /
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Math.PI,
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);
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// 当渐变轴分别于矩形的两条对角线重合情况下的四种结果
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if (angle === alpha) {
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return {
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x0: 0,
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y0: height,
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x1: width,
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y1: 0,
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};
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}
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if (angle === 180 - alpha) {
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return {
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x0: 0,
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y0: 0,
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x1: width,
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y1: height,
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};
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}
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if (angle === 180 + alpha) {
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return {
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x0: width,
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y0: 0,
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x1: 0,
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y1: height,
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};
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}
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if (angle === 360 - alpha) {
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return {
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x0: width,
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y0: height,
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x1: 0,
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y1: 0,
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};
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}
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// 以矩形的中点为坐标原点，向上为Y轴正方向，向右为X轴正方向建立直角坐标系
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let x0 = 0,
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y0 = 0,
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x1 = 0,
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y1 = 0;
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// 当渐变轴与矩形的交点落在水平线上
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if (
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angle < alpha || // 处于第一象限
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(angle > 180 - alpha && angle < 180) || // 处于第二象限
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(angle > 180 && angle < 180 + alpha) || // 处于第三象限
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angle > 360 - alpha // 处于第四象限
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) {
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// 将角度乘以（PI/180）即可转换为弧度
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const radian = (angle * Math.PI) / 180;
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// 当在第一或第四象限，y是height / 2，否则y是-height / 2
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const y = angle < alpha || angle > 360 - alpha ? height / 2 : -height / 2;
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const x = Math.tan(radian) * y;
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// 当在第一或第二象限，l是width / 2 - x，否则l是-width / 2 - x
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const l =
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angle < alpha || (angle > 180 - alpha && angle < 180)
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? width / 2 - x
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: -width / 2 - x;
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const n = Math.pow(Math.sin(radian), 2) * l;
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x1 = x + n;
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y1 = y + n / Math.tan(radian);
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x0 = -x1;
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y0 = -y1;
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}
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// 当渐变轴与矩形的交点落在垂直线上
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if (
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(angle > alpha && angle < 90) || // 处于第一象限
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(angle > 90 && angle < 180 - alpha) || // 处于第二象限
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(angle > 180 + alpha && angle < 270) || // 处于第三象限
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(angle > 270 && angle < 360 - alpha) // 处于第四象限
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) {
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// 将角度乘以（PI/180）即可转换为弧度
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const radian = ((90 - angle) * Math.PI) / 180;
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// 当在第一或第二象限，x是width / 2，否则x是-width / 2
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const x =
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(angle > alpha && angle < 90) || (angle > 90 && angle < 180 - alpha)
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? width / 2
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: -width / 2;
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const y = Math.tan(radian) * x;
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// 当在第一或第四象限，l是height / 2 - y，否则l是-height / 2 - y
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const l =
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(angle > alpha && angle < 90) || (angle > 270 && angle < 360 - alpha)
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? height / 2 - y
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: -height / 2 - y;
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const n = Math.pow(Math.sin(radian), 2) * l;
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x1 = x + n / Math.tan(radian);
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y1 = y + n;
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x0 = -x1;
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y0 = -y1;
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}
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// 坐标系更改为canvas标准，Y轴向下为正方向
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x0 = Math.round(x0 + width / 2);
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y0 = Math.round(height / 2 - y0);
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x1 = Math.round(x1 + width / 2);
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y1 = Math.round(height / 2 - y1);
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return {x0, y0, x1, y1};
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}
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const setGradual = (colorObj,colorWidth,colorHeight)=>{
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let width = colorWidth || 320
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let height = colorHeight || 700
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const canvas = document.createElement("canvas");
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const ctx = canvas.getContext("2d");
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canvas.width = width;
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canvas.height = height;
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let {x0, y0, x1, y1} = calculateGradientCoordinate(width,height,colorObj.angle)
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const gradient = ctx.createLinearGradient(x0, y0, x1, y1);
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colorObj.gradientList.forEach(item => {
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let left = item.left.split('%')[0]/100
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let rgba = `rgba(${item.rgba.r},${item.rgba.g},${item.rgba.b},${item.rgba.a})`
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gradient.addColorStop(left, rgba); // 起始颜色
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});
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ctx.fillStyle = gradient;
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ctx.fillRect(0, 0, width, height);
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const dataURL = canvas.toDataURL('image/jpg');
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return dataURL
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}
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export {
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isEmail,
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getUploadUrl,
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dataURLtoFile,
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blobToFile,
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base64toFile,
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rgbToHsv,
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formatTime,
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dataURLtoBlob,
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isMoible,
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downloadIamge,
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getBrowserInfo,
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murmur,
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setGradual,
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} |