main.js

'use strict'
const path = require('path')
const fs = require('fs')
const electron = require('electron')
const appMenu = require('./menu')
const config = require('./config')
const tray = require('./tray')
const version = require('./version')

const app = electron.app
const ipcMain = electron.ipcMain

require('electron-debug')()

const BrowserWindow = electron.BrowserWindow

let mainWindow
let isQuitting = false

const isAlreadyRunning = app.makeSingleInstance(() => {
  if (mainWindow) {
    if (mainWindow.isMinimized()) {
      mainWindow.restore()
    }

    // Prevent flash on startup when in dark-mode
    mainWindow.webContents.on('did-finish-load', function () {
      setTimeout(function () {
        mainWindow.show()
      }, 60)
    })
  }
})

if (isAlreadyRunning) {
  app.quit()
}

function createMainWindow () {
  const lastWindowState = config.get('lastWindowState')
  const isDarkMode = config.get('darkMode')
  const userAgent = 'Mozilla/5.0 (iPhone; CPU iPhone OS 9_1 like Mac OS X) AppleWebKit/601.1.46 (KHTML, like Gecko) Version/9.0 Mobile/13B143 Safari/601.1'
  const rammeDesktopIcon = path.join(__dirname, 'static/icon.png')
  const maxWidthValue = 550
  const minWidthValue = 400

  // Create the browser window.
  const win = new BrowserWindow({
    title: app.getName(),
    show: false,
    x: lastWindowState.x,
    y: lastWindowState.y,
    minHeight: 400,
    minWidth: minWidthValue,
    maxWidth: maxWidthValue,
    width: lastWindowState.width,
    height: lastWindowState.height,
    maximizable: false,
    fullscreenable: false,
    icon: process.platform === 'linux' && rammeDesktopIcon,
    titleBarStyle: 'hidden-inset',
    darkTheme: isDarkMode,
    backgroundColor: isDarkMode ? '#192633' : '#fff',
    autoHideMenuBar: true,
    webPreferences: {
      preload: path.join(__dirname, 'browser.js'),
      nodeIntegration: false
    }
  })

  win.webContents.setUserAgent(userAgent)
  win.loadURL(`https://www.instagram.com`)

  win.on('close', e => {
    if (!isQuitting) {
      e.preventDefault()

      if (process.platform === 'darwin') {
        app.hide()
      } else {
        win.hide()
      }
    }
  })

  win.on('page-title-updated', e => {
    e.preventDefault()
    tray.create(win)
  })

  return win
}

app.on('ready', () => {
  electron.Menu.setApplicationMenu(appMenu)
  mainWindow = createMainWindow()

  const page = mainWindow.webContents

  ipcMain.on('back', (event, arg) => {
    if (page.canGoBack()) {
      page.goBack()
    }
  })

  page.on('did-navigate-in-page', (event, arg) => {
    const menuBackBtn = appMenu.items[1].submenu.items[0]
    menuBackBtn.enabled = page.canGoBack()
    page.send('set-button-state', menuBackBtn.enabled)
  })

  page.on('dom-ready', () => {
    page.insertCSS(fs.readFileSync(path.join(__dirname, 'browser.css'), 'utf8'))
    page.insertCSS(fs.readFileSync(path.join(__dirname, 'dark-browser.css'), 'utf8'))
    mainWindow.show()
  })

  page.on('new-window', (e, url) => {
    e.preventDefault()
    electron.shell.openExternal(url)
  })

  setTimeout(function () { version.check() }, 8000)
})

app.on('activate', () => {
  mainWindow.show()
})

app.on('before-quit', () => {
  isQuitting = true

  config.set('lastWindowState', mainWindow.getBounds())
})