rudifa/Electron IPC pattern #0

## Electron IPC pattern #0
// 1. in preload, the contextBridge exposes a copy of a process variable for info

// 2. the renderer inserts the info into the view

## index.html
<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8" />
    <meta
      http-equiv="Content-Security-Policy"
      content="default-src 'self'; script-src 'self'"
    />
    <meta
      http-equiv="X-Content-Security-Policy"
      content="default-src 'self'; script-src 'self'"
    />
    <title>Hello from Electron renderer!</title>
  </head>
  <body>
    <h1>Hello from Electron renderer!</h1>
    <p>👋</p>
    <p id="info"></p>
  </body>
  <script src="./renderer.js"></script>
</html>

## main.js
const { app, BrowserWindow } = require('electron');
const path = require('path');

const createWindow = () => {
  const win = new BrowserWindow({
    width: 800,
    height: 600,
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
    },
  });

  win.loadFile('index.html');
};

app.whenReady().then(() => {
  createWindow();

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

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

## package.json
{
  "name": "five-chocolate-verify-9v1cn",
  "productName": "five-chocolate-verify-9v1cn",
  "description": "My Electron application description",
  "keywords": [],
  "main": "./main.js",
  "version": "1.0.0",
  "author": "rudifarkas",
  "scripts": {
    "start": "electron ."
  },
  "dependencies": {},
  "devDependencies": {
    "electron": "21.2.0"
  }
}

## preload.js
// 1. in preload, the contextBridge exposes a copy of a process variable for info

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

contextBridge.exposeInMainWorld('versions', {
  versions: () => process.versions
});

## renderer.js
// 2. the renderer inserts the info into the view

const information = document.getElementById('info');
const {chrome, node, electron} = versions.versions()
information.innerText = `This app is using Chrome (v${chrome}), Node.js (v${node}), and Electron (v${electron})`;

## styles.css
/* styles.css */

/* Add styles here to customize the appearance of your app */
	// 1. in preload, the contextBridge exposes a copy of a process variable for info

	// 2. the renderer inserts the info into the view
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8" />
	<meta
	http-equiv="Content-Security-Policy"
	content="default-src 'self'; script-src 'self'"
	/>
	<meta
	http-equiv="X-Content-Security-Policy"
	content="default-src 'self'; script-src 'self'"
	/>
	<title>Hello from Electron renderer!</title>
	</head>
	<body>
	<h1>Hello from Electron renderer!</h1>
	<p>👋</p>
	<p id="info"></p>
	</body>
	<script src="./renderer.js"></script>
	</html>
	const { app, BrowserWindow } = require('electron');
	const path = require('path');

	const createWindow = () => {
	const win = new BrowserWindow({
	width: 800,
	height: 600,
	webPreferences: {
	preload: path.join(__dirname, 'preload.js'),
	},
	});

	win.loadFile('index.html');
	};

	app.whenReady().then(() => {
	createWindow();

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

	app.on('window-all-closed', () => {
	if (process.platform !== 'darwin') {
	app.quit();
	}
	});
	{
	"name": "five-chocolate-verify-9v1cn",
	"productName": "five-chocolate-verify-9v1cn",
	"description": "My Electron application description",
	"keywords": [],
	"main": "./main.js",
	"version": "1.0.0",
	"author": "rudifarkas",
	"scripts": {
	"start": "electron ."
	},
	"dependencies": {},
	"devDependencies": {
	"electron": "21.2.0"
	}
	}
	// 1. in preload, the contextBridge exposes a copy of a process variable for info

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

	contextBridge.exposeInMainWorld('versions', {
	versions: () => process.versions
	});
	// 2. the renderer inserts the info into the view

	const information = document.getElementById('info');
	const {chrome, node, electron} = versions.versions()
	information.innerText = `This app is using Chrome (v${chrome}), Node.js (v${node}), and Electron (v${electron})`;
	/* styles.css */

	/* Add styles here to customize the appearance of your app */