MTP20_WEB_GLOBAL/main.js

const fs = require('fs')
const yaml = require('js-yaml')
const { app, BrowserWindow, Menu, dialog } = require('electron')
const { autoUpdater } = require('electron-updater')

const fileContents = fs.readFileSync('resources/app-update.yml', 'utf-8')
const data = yaml.load(fileContents)

const createWindow = () => {
    Menu.setApplicationMenu(null)

    if (data.url) {
        autoUpdater.autoDownload = false

        autoUpdater.setFeedURL({
            provider: data.provider,
            url: data.url
        })

        // 检查更新出错
        autoUpdater.on('error', (err) => {
            dialog.showMessageBox({
                type: 'error',
                title: '错误',
                noLink: true,
                message: '更新发生错误',
                detail: err.message
            })
        })

        // 检测到有版本更新
        autoUpdater.on('update-available', (e) => {
            dialog.showMessageBox({
                type: 'info',
                title: '提示',
                noLink: true,
                message: e.version,
                detail: '发现新版本，是否现在下载？',
                buttons: ['取消', '下载']
            }).then((res) => {
                if (res.response === 1) {
                    autoUpdater.downloadUpdate()
                }
            })
        })

        // 更新下载进度事件
        autoUpdater.on('download-progress', (progress) => {
            // https://www.electronjs.org/zh/docs/latest/tutorial/progress-bar
            win.setProgressBar(progress.percent / 100)
        })

        // 下载完成，询问用户是否更新
        autoUpdater.on('update-downloaded', (e) => {
            dialog.showMessageBox({
                type: 'info',
                title: '提示',
                noLink: true,
                message: e.version,
                detail: '已下载新版本，是否关闭应用更新？',
                buttons: ['取消', '安装']
            }).then((res) => {
                if (res.response === 1) {
                    autoUpdater.quitAndInstall()
                } else {
                    win.setProgressBar(-1)
                }
            })
        })
    }

    const win = new BrowserWindow({
        center: true,
        minWidth: 1280,
        minHeight: 800,
        icon: 'dist/favicon.ico'
    })

    win.maximize()
    win.loadFile('dist/index.html')
    win.on('ready-to-show', () => {
        autoUpdater.checkForUpdates()
    })
}

app.whenReady().then(() => {
    createWindow()
})