main.js

/**
 * Electron Main Process
 * @author bcli
 * @description main process which creates our window
 * @see https://electronjs.org/docs/tutorial/first-app
 */

// Modules to control application life and create native browser window
const {app, BrowserWindow} = require('electron'); // electron components
const path = require('path');                     // path

// Keep a global reference of the window object, if you don't, the window will
// be closed automatically when the JavaScript object is garbage collected.
let win;

function createWindow () {
  // Create the browser window.
  // for more options, see https://electronjs.org/docs/api/browser-window#class-browserwindow
  win = new BrowserWindow({ 
    width: 320,         // window width
    height: 320,        // window height
    webPreferences: { 
      nodeIntegration: true
    }
  });

  // no resize
  win.setResizable(false);

  // hide menu
  win.setMenu(null);

  // and load the index.html of the app.
  win.loadFile(path.join('assets','index.html'));

  // open the DevTools.
  //win.webContents.openDevTools();

  // Emitted when the window is closed.
  win.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.
    win = null;
  });

}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', createWindow);

// Quit when all windows are closed.
app.on('window-all-closed', function () {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.on('activate', function () {
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (win === null) {
    createWindow();
  }
});

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.

// our shrinking process is defined in assets/js/renderer.js