main.js

// main.js

// Module to control application life.
var app = require('app');

// Module to create native browser window.
var BrowserWindow = require('browser-window');
var mainWindow = null;

// Report crashes to our server.
require('crash-reporter').start();

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

// Force single instance of application
var shouldQuit = app.makeSingleInstance(function(commandLine, workingDirectory) {
  // Someone tried to run a second instance, we should focus our window
  if (mainWindow) {
    if (mainWindow.isMinimized()) {
      mainWindow.restore();
    }

    mainWindow.focus();
  }

  return true;
});

if (shouldQuit) {
  app.quit();
  return;
}

app.on('ready', function() {
  mainWindow = new BrowserWindow({
    width: 1400,
    height: 1200
  });

  mainWindow.loadUrl('file://' + __dirname + '/oahenv/index.html');

  mainWindow.setMenuBarVisibility(false);

  // Open the DevTools.
  mainWindow.webContents.openDevTools({
    detach: true
  });

  // Emitted when the window is closed.
  mainWindow.on('closed', function () {

    // Dereference the window object, usually you would store windows
    // in an array if your app supports multi windows, this is the time
    // when you should delete the corresponding element.
    mainWindow = null;
  });
});