水印相关功能
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<!--
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* @Author: hisense.wuhongjian
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* @Date: 2022-05-06 11:12:00
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* @LastEditors: hisense.wuhongjian
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* @LastEditTime: 2022-08-03 10:13:59
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* @LastEditors: Light
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* @LastEditTime: 2022-11-16 10:21:49
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* @Description: 告诉大家这是什么
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-->
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<template>
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@ -13,56 +13,138 @@
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</div>
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</template>
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<script setup>
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import zhCN from 'ant-design-vue/es/locale/zh_CN'
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import Cookies from 'js-cookie'
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import { onBeforeUnmount } from 'vue'
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import { useRouter } from 'vue-router'
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import mybus from '@/myplugins/mybus'
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const router = useRouter()
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import onWholeWaterMark from '@/utils/waterMark'
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import * as moment from 'moment'
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import { getUser } from '@/api/home'
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import { getCategoryTreePage } from '@/api/personalCenter'
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import zhCN from 'ant-design-vue/es/locale/zh_CN'
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import Cookies from 'js-cookie'
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import { onBeforeUnmount, onMounted, watch, nextTick } from 'vue'
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import { useRouter } from 'vue-router'
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import mybus from '@/myplugins/mybus'
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const router = useRouter()
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const locale = zhCN
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const token = Cookies.get('ucsToken')
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console.log('token=================>', token)
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let ws = new WebSocket(
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const locale = zhCN
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const token = Cookies.get('ucsToken')
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console.log('token=================>', token)
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let ws = new WebSocket(
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`ws://${window.SITE_CONFIG['websocketURL']}/websocket?token=${token}`
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)
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// ws.send()给服务器发送信息
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// 服务器每次返回信息都会执行一次onmessage方法
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ws.onmessage = function (e) {
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)
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// ws.send()给服务器发送信息
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// 服务器每次返回信息都会执行一次onmessage方法
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ws.onmessage = function (e) {
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console.log('WebSocket服务器返回的信息: ' + e.data)
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mybus.emit('getMynotice')
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// 判断当前路由是否是消息中心
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if (router.currentRoute.value.name === 'mynoticeView') {
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mybus.emit('noticeListInit')
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}
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}
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ws.onerror = function (e) {
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}
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ws.onerror = function (e) {
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console.log('WebSocket连接异常============================>', e)
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ws = new WebSocket(
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`ws://${window.SITE_CONFIG['websocketURL']}/websocket?token=${token}`
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)
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}
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ws.onclose = function (e) {
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}
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ws.onclose = function (e) {
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console.log('WebSocket连接断开============================>', e)
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}
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onBeforeUnmount(() => {
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}
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let realName = '默认水印'
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const arr = []
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const changeWaterMark = (newValue) => {
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console.log('监听', newValue, arr)
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if (document.getElementById(realName.charCodeAt())) {
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if (arr.indexOf(newValue) > -1) {
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document.getElementById(realName.charCodeAt()).style.opacity = 1
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document.getElementById(
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moment().format('YYYY-MM-DD').charCodeAt()
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).style.opacity = 1
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} else {
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document.getElementById(realName.charCodeAt()).style.opacity = 0
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document.getElementById(
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moment().format('YYYY-MM-DD').charCodeAt()
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).style.opacity = 0
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}
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} else if (document.getElementById('默认水印'.charCodeAt())) {
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if (arr.indexOf(newValue) > -1) {
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document.getElementById('默认水印'.charCodeAt()).style.opacity = 1
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document.getElementById(
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moment().format('YYYY-MM-DD').charCodeAt()
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).style.opacity = 1
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} else {
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document.getElementById('默认水印'.charCodeAt()).style.opacity = 0
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document.getElementById(
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moment().format('YYYY-MM-DD').charCodeAt()
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).style.opacity = 0
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}
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}
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}
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const waterMarkInit = (newValue) => {
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getUser().then((res) => {
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if (res.data.code == 0) {
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realName = res.data.data.realName
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}
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onWholeWaterMark(
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[realName, moment().format('YYYY-MM-DD')],
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600,
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300,
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30,
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50
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)
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getCategoryTreePage({
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page: 1,
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limit: 999,
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dictTypeId: '1592357067014803457',
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}).then((res) => {
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arr.length = 0
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res.data.data.list.map((val) => {
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arr.push(val.dictValue)
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})
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if (newValue) {
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changeWaterMark(newValue)
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}
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})
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})
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}
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watch(
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() => router.currentRoute.value.path,
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(newValue, oldValue) => {
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console.log(
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'路由变化',
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newValue,
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oldValue,
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realName,
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realName.charCodeAt()
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)
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// 如果刚登陆 初始化水印
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if (oldValue == '/login' || oldValue == '/') {
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waterMarkInit(newValue)
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}
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changeWaterMark(newValue)
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},
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{ immediate: true }
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)
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onMounted(() => {
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waterMarkInit()
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})
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onBeforeUnmount(() => {
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// 4.卸载前, 关闭链接
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ws.close()
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})
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})
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</script>
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<style lang="less">
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@import '~@/vab/styles/vab.less';
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@import '~@/vab/styles/vab.less';
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#vue-admin-beautiful {
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#vue-admin-beautiful {
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max-width: 1920px;
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// max-height: 1080px;
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margin: auto;
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height: 100%;
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position: relative;
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background-color: #fff;
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}
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}
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body {
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body {
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font-size: 0.14rem;
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}
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}
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</style>
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@ -0,0 +1,69 @@
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/*
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* @Author: Light
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* @Date: 2022-11-14 15:01:54
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* @LastEditors: Light
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* @LastEditTime: 2022-11-16 09:57:28
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* @Description: 水印
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*/
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const watermark = {
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timer: null,
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set: () => {},
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}
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const setWatermark = (str, width, height, size, top, index) => {
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console.log('生成水印')
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const id = str.charCodeAt()
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if (document.getElementById(id) !== null) {
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document.body.removeChild(document.getElementById(id))
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}
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const can = document.createElement('canvas')
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can.width = width
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can.height = height
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const cans = can.getContext('2d')
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cans.rotate((-20 * Math.PI) / 180)
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cans.font = size + 'px Microsoft YaHei'
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cans.fillStyle = 'rgba(200, 200, 200, 0.4)'
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cans.textAlign = 'left'
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cans.textBaseline = 'middle'
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cans.fillText(str, can.width / 3, can.height / 2)
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const WATER_MARK = document.createElement('div')
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const ALL_WIDTH = document.documentElement.clientWidth + 'px'
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const ALL_HEIGHT = document.documentElement.clientHeight + 'px'
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WATER_MARK.id = id
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WATER_MARK.style.cssText = `
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position: fixed;
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top: ${index * top}px;
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left: 0;
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zIndex: 99999999;
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pointer-events: none;
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width: ${ALL_WIDTH};
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height: ${ALL_HEIGHT};
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background: url(${can.toDataURL('image/png')}) left top repeat;
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opacity: 0;
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`
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document.body.appendChild(WATER_MARK)
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return id
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}
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// 该方法只允许调用一次
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watermark.set = (str, width, height, size, top, index) => {
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let id = setWatermark(str, width, height, size, top, index)
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watermark.timer && clearTimeout(watermark.timer)
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watermark.timer = setTimeout(() => {
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if (document.getElementById(id) === null) {
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id = setWatermark(str, width, height, size, top, index)
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}
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}, 300)
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window.onresize = () => {
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setWatermark(str, width, height, size, top, index)
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}
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}
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const onWholeWaterMark = (arr, width, height, size, top) => {
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arr.map((str, index) => {
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watermark.set(str, width, height, size, top, index)
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})
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}
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export default onWholeWaterMark
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