var WindowManagerServer = require('./path/to/window_manager_server.js');

var windowManagerServer = new WindowManagerServer({
  // a window named `mainWindow`
  mainWindow: {
    create: function() {
      var win = new BrowserWindow({width: 1024, height: 768});
      win.openDevTools();
      win.loadURL('file://' + __dirname + '/app/mainWindow.html');
      
      // do not need to listen ipc.on('closed') event, 
      // WindowManager will help you to do that
      //
      // ipc.on('closed', function() {...}); // no need this
      
      return win;
    }
  },
  // a window named `window2`
  window2: {
    create: function() {
      ...
    }
  }
});
windowManagerServer.registerIPC(); // register ipc to dispatch events

// This method will be called when Electron has done everything
// initialization and ready for creating browser windows.
app.on('ready', function() {
  windowManagerServer.open('mainWindow');
});

var WindowManagerClient = require('./path/to/window_manager_client.js');

var MainWindow = React.createClass({
  componentDidMount: function() {
    this.windowManagerClient = new WindowManagerClient('mainWindow', function(event, arg){
      this.setState({message: arg});
    }.bind(this));

    // windowManagerClient.init() should be called in `componentDidMount` life cycle
    // which is all DOM are rendered 
    this.windowManagerClient.init();
  },
  handleWindowClose: function() {
    this.windowManagerClient.close();
  },
  render: function() {
    return (
     ...
    );
  }
});

ReactDOM.render(
  <MainWindow/>,
  document.getElementById('content')
);