main.js

'use strict'

const electron = require('electron')
const app = electron.app
const globalShortcut = electron.globalShortcut
const os = require('os')
const path = require('path')
const pack = require(path.join(__dirname, 'package.json'))
const BrowserWindow = electron.BrowserWindow
const electronData = require('electron-data')

app.setName(pack.productName)
var mainWindow = null

electronData.config({
  autosave: true,
  prettysave: true
})

if (!electronData.has('config')) {
  electronData.set('config', require('config.json'))
}

app.on('ready', function () {
  mainWindow = new BrowserWindow({
    backgroundColor: 'lightgray',
    icon: path.join(__dirname, '/app/images/favicon.ico'),
    title: pack.productName,
    titleBarStyle: 'hidden',
    frame: false,
    show: false,
    webPreferences: {
      nodeIntegration: true,
      defaultEncoding: 'UTF-8'
    }
  })

  mainWindow.loadURL(`file://${__dirname}/app/index.html`)

  // Enable keyboard shortcuts for Developer Tools on various platforms.
  let platform = os.platform()
  if (platform === 'darwin') {
    globalShortcut.register('Command+Option+I', () => {
      mainWindow.webContents.openDevTools()
    })
  } else if (platform === 'linux' || platform === 'win32') {
    globalShortcut.register('Control+Shift+I', () => {
      mainWindow.webContents.openDevTools()
    })
  }

  mainWindow.once('ready-to-show', () => {
    mainWindow.setMenu(null)
    mainWindow.show()
  })

  mainWindow.onbeforeunload = (e) => {
    // Prevent Command-R from unloading the window contents.
    e.returnValue = false
  }

  mainWindow.on('closed', function () {
    mainWindow = null
  })
})

app.on('window-all-closed', () => { app.quit() })