<template>
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<div id="UiHeader">
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<el-menu router :default-active="this.$route.path" background-color="#545c64" text-color="#fff" active-text-color="#ffd04b" mode="horizontal">
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<el-menu-item index="/">控制台</el-menu-item>
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<el-menu-item index="/deviceList">设备列表</el-menu-item>
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<el-menu-item index="/pushVideoList">推流列表</el-menu-item>
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<el-menu-item index="/parentPlatformList/15/1">国标级联</el-menu-item>
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<el-switch v-model="alarmNotify" active-text="报警信息推送" style="display: block float: right" @change="sseControl"></el-switch>
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<el-menu-item style="float: right;" @click="loginout">退出</el-menu-item>
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</el-menu>
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</div>
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</template>
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<script>
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export default {
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name: "UiHeader",
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components: { Notification },
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data() {
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return {
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alarmNotify: true,
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sseSource: null,
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};
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},
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methods:{
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loginout(){
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// 删除cookie，回到登录页面
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this.$cookies.remove("session");
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this.$router.push('/login');
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this.sseSource.close();
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},
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beforeunloadHandler() {
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this.sseSource.close();
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},
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sseControl() {
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let that = this;
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if (this.alarmNotify) {
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console.log("申请SSE推送API调用，浏览器ID: " + this.$browserId);
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this.sseSource = new EventSource('/api/emit?browserId=' + this.$browserId);
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this.sseSource.addEventListener('message', function(evt) {
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that.$notify({
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title: '收到报警信息',
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dangerouslyUseHTMLString: true,
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message: evt.data,
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type: 'warning'
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});
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console.log("收到信息：" + evt.data);
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});
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this.sseSource.addEventListener('open', function(e) {
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console.log("SSE连接打开.");
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}, false);
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this.sseSource.addEventListener('error', function(e) {
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if (e.target.readyState == EventSource.CLOSED) {
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console.log("SSE连接关闭");
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} else {
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console.log(e.target.readyState);
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}
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}, false);
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} else {
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this.sseSource.removeEventListener('open', null);
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this.sseSource.removeEventListener('message', null);
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this.sseSource.removeEventListener('error', null);
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this.sseSource.close();
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}
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}
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},
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mounted() {
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window.addEventListener('beforeunload', e => this.beforeunloadHandler(e))
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// window.addEventListener('unload', e => this.unloadHandler(e))
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this.sseControl();
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},
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destroyed() {
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window.removeEventListener('beforeunload', e => this.beforeunloadHandler(e))
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// window.removeEventListener('unload', e => this.unloadHandler(e))
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},
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}
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</script>
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