创建无边框窗口 main/index.js

  const mainWindow = new BrowserWindow({
    width: 100,
    height: 30,
    show: true,
    frame: false, //边框
    thickFrame: false, //阴影
    titleBarStyle: 'hidden', // 隐藏标题栏
    transparent: true, //透明
    alwaysOnTop: true, //置顶
    resizable: false, //调大小
    autoHideMenuBar: true, //隐藏菜单栏
    webPreferences: {
      preload: join(__dirname, '../preload/index.js'),
      sandbox: false
    }
  })

监听渲染层鼠标事件

  let XY = {
    //鼠标与窗口定位差值
    x: 0,
    y: 0
  }
  let currentWindow = null //当前窗口
  let IntervalId = null //定时器id
  // 移动窗口----start
  ipcMain.on('winMove-start', (event) => {
    currentWindow = BrowserWindow.fromWebContents(event.sender)
    const winPosition = currentWindow.getPosition()
    const cursorPosition = screen.getCursorScreenPoint() //开始时鼠标位置
    XY.x = cursorPosition.x - winPosition[0]
    XY.y = cursorPosition.y - winPosition[1]
    clearInterval(IntervalId)
    IntervalId = setInterval(() => {
      refreshWinPosition()
    }, 20)
  })
  // 移动窗口----end
  ipcMain.on('winMove-end', (event, params) => {
    clearInterval(IntervalId)
  })
  function refreshWinPosition() {
    const cursorPosition = screen.getCursorScreenPoint() //移动后鼠标位置
    currentWindow.setPosition(cursorPosition.x - XY.x, cursorPosition.y - XY.y, true) //设置窗口位置
  }

预加载器preload/index.js

import { contextBridge, ipcMain } from 'electron'
import { electronAPI } from '@electron-toolkit/preload'//我用的electron-vite模版自带的
contextBridge.exposeInMainWorld('electron', electronAPI)//用于渲染层暴露electronAPI 

渲染层编写(vue3)

自定义拖动指令v-dropWindow

src/directive/dropWindow/index.js

const { ipcRenderer } = window.electron

const dropWindow = {
  mounted(el, binding, vnode) {
    //按下鼠标左键
    el.addEventListener('mousedown', (e) => {
      if (e.buttons == 1) {
        winMoveStart() //开始刷新屏幕位置
        el.addEventListener('mousemove', mousemove)
      }
    })
    //按下松开鼠标鼠标
    el.addEventListener('mouseup', () => {
      winMoveEnd() //停止刷新屏幕位置
      el.removeEventListener('mousemove', mousemove)
    })

    function winMoveStart() {
      ipcRenderer.send('winMove-start')
    }

    //补丁:鼠标在窗口外松开不触发mouseup，鼠标回到窗口没按着左键停止
    function mousemove(e) {
      if (e.buttons != 1) {
        winMoveEnd()
        el.removeEventListener('mousemove', mousemove)
      }
    }

    function winMoveEnd() {
      ipcRenderer.send('winMove-end')
    }
  }
}
export default dropWindow

批量注册指令插件 src/directive/index.js

// 导入指令定义文件
import dropWindow from './dropWindow'

// 集成一起
const directives = {
  dropWindow
}
//批量注册
directives.install = function (app) {
  Object.keys(directives).forEach((key) => {
    app.directive(key, directives[key])
  })
}
export default directives

使用插件 src/main.js

import { createApp } from 'vue'
import App from './App.vue'
import directives from './directive'

createApp(App).use(directives).mount('#app')

页面使用

在可以拖动的节点添加自定义指令v-dropWindow

 <div class="Xpage" v-dropWindow>
    <div class="flex-xy-b color-a cell fs-12" v-for="stock in stocks" key="code">
      <div>{{ stock.now }}</div>
      <div>{{ +(+stock.percent * 100).toFixed(2) }}%</div>
    </div>
  </div>

效果