App.vue

<template>
  <div id="app">
    <div id="nav">
      <router-link to="/">Home</router-link> |
      <router-link to="/about">About</router-link>
    </div>
    <router-view/>


    <el-dialog
        title="正在更新新版本,请稍候..."
        :visible.sync="dialogVisible"
        width="60%"
        :close-on-click-modal="closeOnClickModal"
        :close-on-press-escape="closeOnPressEscape"
        :show-close="showClose"
        center
    >
        <div style="width:100%;height:20vh;line-height:20vh;text-align:center;">
            <el-progress
                status="success"
                :text-inside="true"
                :stroke-width="20"
                :percentage="percentage"
                :width="strokeWidth"
                :show-text="true"
            ></el-progress>
        </div>
    </el-dialog>

    
  </div>
</template>

<script>

let ipcRenderer = require("electron").ipcRenderer;
let _this = this;

//接收主进程版本更新消息
ipcRenderer.on("message", (event, arg) => {
    // for (var i = 0; i < arg.length; i++) {
    console.log(arg);
    if ("update-available" == arg.cmd) {
        //显示升级对话框
        _this.dialogVisible = true;
    } else if ("download-progress" == arg.cmd) {
        //更新升级进度
        /**
         * 
         *  message{bytesPerSecond: 47673
            delta: 48960
            percent: 0.11438799862426002
            total: 42801693
            transferred: 48960
        }
        */
        console.log(arg.message.percent);
        let percent = Math.round(parseFloat(arg.message.percent));
        _this.percentage = percent;
    } else if ("error" == arg.cmd) {
        _this.dialogVisible = false;
        _this.$message("更新失败");
    }
    // }
});
//20秒后开始检测新版本 ( 延时函数 setTimeout )
let timeOut = window.setTimeout(() => {
    ipcRenderer.send("checkForUpdate");
}, 20000);
clearTimeout;
//间隔24小时检测一次 ( 定时器 setInterval )
let interval = window.setInterval(() => {
    ipcRenderer.send("checkForUpdate");
}, 86400000);

export default {
    name: 'ElectronVueElementAdmin',
    data() {
        return {
            dialogVisible: false,
            closeOnClickModal: false,
            closeOnPressEscape: false,
            showClose: false,
            percentage: 0,
            strokeWidth:200
        };
    },
    mounted() {
        _this = this;
    },
    destroyed() {
        window.clearInterval(interval);
        window.clearInterval(timeOut);
    }
}
</script>

<style lang="scss">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}

#nav {
  padding: 30px;

  a {
    font-weight: bold;
    color: #2c3e50;

    &.router-link-exact-active {
      color: #42b983;
    }
  }
}
</style>