main.js

//BM Shifat v1.0.0
//shifat8m@gmail.com@gmail.com

const {app, BrowserWindow, webContents, ipcMain, Menu} = require('electron')
const path = require('path')
const MainMenuapp = require('./menu-config')
const appConfig = require('./config')

let mainWindow

//Menu
let mainMenu = Menu.buildFromTemplate(MainMenuapp)



function createWindow () {
  mainWindow = new BrowserWindow({
    width: appConfig['width'],
    height: appConfig['height'],
    minWidth: appConfig['minWidth'],
    minHeight: appConfig['minHeight'],
    webPreferences: {
      preload: path.join(__dirname, 'preload.js')
    }
  })

  //Load Appliaction Main Menu
  Menu.setApplicationMenu(mainMenu) 



  //CreatWindow execute loding remote content
  loadWebContent()

}


function loadWebContent() {
  //Loading spalsh screen
  mainWindow.loadFile(path.join(__dirname, 'public/loading.html'))

  //create webContants
  let wc = mainWindow.webContents

  //suessfull loding page afer dom created
  wc.once('did-finish-load'  ,  () => {
    mainWindow.loadURL(appConfig['websiteUrl'])
 })

  //if not loading page redirect error page
  wc.on('did-fail-load', (error, code)=> {
    //console.log(code)
    mainWindow.loadFile(path.join(__dirname, 'public/offline.html'))
  })
}

//Check website loading error (offline, page not found or etc.)
ipcMain.on('online-status-changed', (event, status) => {
  if(status == true) { loadWebContent() }
})

//Load menuItem local pages (About, Home page, etc)
module.exports = (pageId) => {
  if(pageId === 'home') {
    loadWebContent()
  } else {
    mainWindow.loadFile(path.join(__dirname, `public/${pageId}.html`))
  }
}

app.whenReady().then(createWindow)

// Quit when all windows are closed.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

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