um-react-electron/src/main.js

// Modules to control application life and create native browser window
const { app, shell, BrowserWindow } = require('electron')
const path = require('path')
const { electronApp, optimizer } = require('@electron-toolkit/utils')

function createWindow() {
  // Create the browser window.
  const mainWindow = new BrowserWindow({
    width: 900,
    height: 670,
    show: false,
    autoHideMenuBar: true,
    // frame: false, // 隐藏标题栏
    ...(process.platform === 'linux' || process.platform === 'win32'
      ? {
          icon: path.join(__dirname, '../resources/icon.png')
        }
      : {}),
    ...(process.platform === 'darwin'
      ? {
          titleBarStyle: 'hidden' // 隐藏 macOS 的默认标题栏
        }
      : {}),
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      sandbox: false,
      nodeIntegration: true
    }
  })

  mainWindow.on('ready-to-show', () => {
    mainWindow.show()
  })

  mainWindow.webContents.setWindowOpenHandler((details) => {
    shell.openExternal(details.url)
    return { action: 'deny' }
  })

  // and load the index.html of the app.
  // console.log(app.isPackaged)
  // if (!app.isPackaged) {
  //   mainWindow.loadURL('http://localhost:5173')
  // } else {
  mainWindow.loadFile(path.join(__dirname, 'renderer/index.html'))
  // }

  mainWindow.on('closed', () => {
    // 在窗口关闭时触发before-quit事件以结束进程
    app.quit()
  })
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  // Set app user model id for windows
  electronApp.setAppUserModelId('com.dreamfly.um')

  // Default open or close DevTools by F12 in development
  // and ignore CommandOrControl + R in production.
  // see https://github.com/alex8088/electron-toolkit/tree/master/packages/utils
  app.on('browser-window-created', (_, window) => {
    optimizer.watchWindowShortcuts(window)
  })

  app.on('NSApplicationDelegate.applicationSupportsSecureRestorableState', () => true)

  createWindow()

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })

})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})