preload.js

// All of the Node.js APIs are available in the preload process.
// It has the same sandbox as a Chrome extension.

const {
	contextBridge,
	ipcRenderer
} = require('electron');

// window.addEventListener('DOMContentLoaded', () => {
// 	const replaceText = (selector, text) => {
// 		const element = document.getElementById(selector);
// 		if (element) {
// 			element.innerText = text;
// 		}
// 	};

// 	for (const type of ['chrome', 'node', 'electron']) {
// 		replaceText(`${type}-version`, process.versions[type]);
// 	}
// });

// Expose protected methods that allow the renderer process to use
// the ipcRenderer without exposing the entire object
contextBridge.exposeInMainWorld(
	'electron',
	{
		'platform': process.platform,
		'quitApp': () => ipcRenderer.send('quitApp'),
		'lock': () => ipcRenderer.send('lock'),
		'sleep': () => ipcRenderer.send('sleep')
	}
);