What is an electron?

Time:2021-9-15

Renderer Process API remote Browser Window Proxy desktop Capture

1. Remote (server object)

1.1 index.html

<!DOCTYPE html>

<html>

<head>

<meta charset=”UTF-8″>

<meta http-equiv=”Content-Security-Policy” content=”script-src ‘self’ ‘unsafe-inline'”>

<title>Hello World!</title>

</head>

<body>

<h1>Hello World!</h1>

<button type=”button” name=”button” id=”test-button”>Fullscreen</button>

<!– All of the Node.js APIs are available in this renderer process. –>

We are using Node.js <script>document.write( process.versions.node)</script>,

and Electron <script>document.write( process.versions.electron )</script>.

<script>

// You can also require other files to run in this process

require(‘./renderer.js’)

</script>

</body>

</html>

1.2 renderer.js

// This file is required by the index.html file and will

// be executed in the renderer process for that window.

// All of the Node.js APIs are available in this process.

const remote = require(‘electron’).remote

const { app, dialog, BrowserWindow } = remote

const button = document.getElementById(‘test-button’)

button.addEventListener(‘click’, e => {

// dialog.showMessageBox({ message: ‘Dialog invoked from Renderer process’ })

// let secWin = new BrowserWindow({

// width: 400, height: 350

// })

// secWin.loadFile(‘index.html’)

// console.log( remote.getGlobal(‘myglob’) )

// app.quit()

let win = remote.getCurrentWindow()

win.maximize()

})

1.3 main. JS in the game

// Modules

const {app, BrowserWindow} = require(‘electron’)

global[‘myglob’] = ‘A var set in main.js’

// 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 mainWindow

// Create a new BrowserWindow when app is ready

function createWindow () {

mainWindow = new BrowserWindow({

width: 1000, height: 800,

webPreferences: { nodeIntegration: true }

})

// Load index.html into the new BrowserWindow

mainWindow.loadFile(‘index.html’)

// Open DevTools – Remove for PRODUCTION!

mainWindow.webContents.openDevTools();

// Listen for window being closed

mainWindow.on(‘closed’, () => {

mainWindow = null

})

}

// Electron app is ready

app.on(‘ready’, createWindow)

// Quit when all windows are closed – (Not macOS – Darwin)

app.on(‘window-all-closed’, () => {

if (process.platform !== ‘darwin’) app.quit()

})

// When app icon is clicked and app is running, (macOS) recreate the BrowserWindow

app.on(‘activate’, () => {

if (mainWindow === null) createWindow()

})

2. Browser window proxy

<!DOCTYPE html>

<html>

<head>

<meta charset=”UTF-8″>

<meta http-equiv=”Content-Security-Policy” content=”script-src ‘self’ ‘unsafe-inline'”>

<title>Hello World!</title>

</head>

<body>

<h1>Hello World!</h1>

<h3>