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August 21, 2024 19:56
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setDisplayMediaRequestHandler example
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <!-- https://developer.mozilla.org/en-US/docs/Web/HTTP/CSP --> | |
| <meta http-equiv="Content-Security-Policy" content="default-src 'self'; script-src 'self'"> | |
| <title>Hello World!</title> | |
| </head> | |
| <body> | |
| <h1>Hello World!</h1> | |
| We are using Node.js <span id="node-version"></span>, | |
| Chromium <span id="chrome-version"></span>, | |
| and Electron <span id="electron-version"></span>. | |
| <!-- You can also require other files to run in this process --> | |
| <button id="startButton" class="button">Start</button> | |
| <button id="stopButton" class="button">Stop</button> | |
| <button id="pauseButton" class="button">Pause</button> | |
| <video width="320" height="240" autoplay></video> | |
| <script src="./renderer.js"></script> | |
| </body> | |
| </html> |
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| // Modules to control application life and create native browser window | |
| const { app, BrowserWindow, desktopCapturer, session } = require('electron') | |
| const path = require('node:path') | |
| function createWindow () { | |
| const mainWindow = new BrowserWindow({ | |
| width: 800, | |
| height: 600, | |
| webPreferences: { | |
| preload: path.join(__dirname, 'preload.js') | |
| } | |
| }) | |
| mainWindow.loadFile('index.html') | |
| // mainWindow.webContents.openDevTools() | |
| } | |
| app.whenReady().then(() => { | |
| createWindow() | |
| session.defaultSession.setDisplayMediaRequestHandler((request, callback) => { | |
| // If we should use the system picker | |
| // Note: this is currently experimental | |
| // if (desktopCapturer.isDisplayMediaSystemPickerAvailable()) { | |
| // callback({ video: desktopCapturer.systemPickerVideoSource }) | |
| // return; | |
| // } | |
| desktopCapturer.getSources({ types: ['screen'] }).then((sources) => { | |
| console.log('Request: ', request) | |
| // Grant access to the first screen found. | |
| callback({ video: sources[0] }) | |
| }).catch((err) => { | |
| console.log('Error: ', err); | |
| }) | |
| }) | |
| app.on('activate', function () { | |
| if (BrowserWindow.getAllWindows().length === 0) createWindow() | |
| }) | |
| }) | |
| app.on('window-all-closed', function () { | |
| if (process.platform !== 'darwin') app.quit() | |
| }) |
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| { | |
| "name": "getDisplayMedia", | |
| "productName": "getDisplayMedia", | |
| "description": "My Electron application description", | |
| "keywords": [], | |
| "main": "./main.js", | |
| "version": "1.0.0", | |
| "author": "khammond", | |
| "scripts": { | |
| "start": "electron ." | |
| }, | |
| "dependencies": {}, | |
| "devDependencies": { | |
| "electron": "999.999.999" | |
| } | |
| } |
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| 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]) | |
| } | |
| }) |
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| // renderer.js | |
| const startButton = document.getElementById('startButton') | |
| const stopButton = document.getElementById('stopButton') | |
| const video = document.querySelector('video') | |
| startButton.addEventListener('click', () => { | |
| navigator.mediaDevices.getDisplayMedia({ | |
| audio: true, | |
| video: { | |
| width: 320, | |
| height: 240, | |
| frameRate: 30 | |
| } | |
| }).then(stream => { | |
| video.srcObject = stream; | |
| video.onloadedmetadata = (e) => video.play(); | |
| }).catch(e => console.log("Failed in getDisplayMedia", e)) | |
| }) | |
| stopButton.addEventListener('click', () => { | |
| video.close() | |
| }) | |
| pauseButton.addEventListener('click', () => { | |
| video.pause() | |
| }) |
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