index.js

const { app, BrowserWindow } = require('electron')
const electron = require('electron')
const ipcMain = require('electron').ipcMain
const Menu = electron.Menu

Menu.setApplicationMenu(null)

let mainWindow
function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1300,
    height: 768,
    resizable: false,
    webPreferences: {
      nodeIntegration: true,
      webSecurity: false
    }
  })

  mainWindow.loadFile('index.html')

  // mainWindow.webContents.openDevTools()
}

app.allowRendererProcessReuse = true
app.disableHardwareAcceleration()

app.on('ready', createWindow)

app.on('window-all-closed', function () {
  if (process.platform !== 'darwin') app.quit()
})

app.on('activate', function () {
  if (BrowserWindow.getAllWindows().length === 0) createWindow()
})

const dialog = electron.dialog
ipcMain.on('select-file-dialog', (event) => {
  dialog.showOpenDialog({
    properties: ['openFile']
  }).then((obj) => {
    if (obj.filePaths[0]) event.sender.send('select-file', obj.filePaths[0])
  })
})

ipcMain.on('ondragstart', (event, arg) => {
  event.sender.send('select-file', arg)
})

let table
ipcMain.on('table', (event, arg) => {
  table = arg
})

ipcMain.on('show_ll1', (event) => {
  let neww = new BrowserWindow({
    width: 1080,
    height: 600,
    frame: true,
    resizable: false,
    webPreferences: {
      nodeIntegration: true
    }
  })
  neww.loadFile('ll1show.html')
  neww.on('closed', () => { neww = null })
  // neww.webContents.openDevTools()
})

ipcMain.on('get_table', (event) => {
  event.sender.send('table', table)
})

let parser_tree

ipcMain.on('parser-tree', (event, arg) => {
  parser_tree = arg
  let treew = new BrowserWindow({
    width: 1080,
    height: 600,
    webPreferences: {
      nodeIntegration: true
    }
  })
  treew.loadFile('tree.html')
  treew.on('closed', () => { treew = null })
  // treew.webContents.openDevTools()
})

ipcMain.on('get-parser-tree', (event) => {
  event.sender.send('send-parser-tree', parser_tree)
})