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Reproduce pre-window dialog performance bug
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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 --> | |
| <script src="./renderer.js"></script> | |
| </body> | |
| </html> |
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| // Modules to control application life and create native browser window | |
| const { app, BrowserWindow, dialog } = require('electron') | |
| const path = require('node:path') | |
| function createWindow () { | |
| // Create the browser window. | |
| const mainWindow = new BrowserWindow({ | |
| width: 800, | |
| height: 600, | |
| webPreferences: { | |
| preload: path.join(__dirname, 'preload.js') | |
| } | |
| }) | |
| // and load the index.html of the app. | |
| mainWindow.loadFile('index.html') | |
| // Open the DevTools. | |
| // mainWindow.webContents.openDevTools() | |
| } | |
| // 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.whenReady().then(async () => { | |
| console.log(`Dialog shown: ${new Date().toISOString()}`); | |
| await dialog.showMessageBox({ | |
| title: 'Dialog Before Window', | |
| message: 'This dialog appeared before any BrowserWindow was created.', | |
| buttons: ['OK'] | |
| }); | |
| console.log(`Dialog returned: ${new Date().toISOString()}`); | |
| createWindow() | |
| console.log(`Window loaded: ${new Date().toISOString()}`); | |
| await dialog.showMessageBox({ | |
| title: 'Dialog After Window', | |
| message: 'The app will quit after you click OK', | |
| buttons: ['OK'] | |
| }); | |
| console.log(`Dialog returned with window: ${new Date().toISOString()}`); | |
| app.quit(); | |
| }) | |
| // Quit when all windows are closed, except on macOS. There, it's common | |
| // for applications and their menu bar to stay active until the user quits | |
| // explicitly with Cmd + Q. | |
| app.on('window-all-closed', function () { | |
| if (process.platform !== 'darwin') app.quit() | |
| }) | |
| // In this file you can include the rest of your app's specific main process | |
| // code. You can also put them in separate files and require them here. |
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| { | |
| "name": "painful-robin-squash-4yhah", | |
| "productName": "painful-robin-squash-4yhah", | |
| "description": "My Electron application description", | |
| "keywords": [], | |
| "main": "./main.js", | |
| "version": "1.0.0", | |
| "author": "hal-massey", | |
| "scripts": { | |
| "start": "electron ." | |
| }, | |
| "dependencies": {}, | |
| "devDependencies": { | |
| "electron": "41.2.0" | |
| } | |
| } |
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| /** | |
| * The preload script runs before `index.html` is loaded | |
| * in the renderer. It has access to web APIs as well as | |
| * Electron's renderer process modules and some polyfilled | |
| * Node.js functions. | |
| * | |
| * https://www.electronjs.org/docs/latest/tutorial/sandbox | |
| */ | |
| window.addEventListener('DOMContentLoaded', () => { | |
| const replaceText = (selector, text) => { | |
| const element = document.getElementById(selector) | |
| if (element) element.innerText = text | |
| } | |
| for (const type of ['chrome', 'node', 'electron']) { | |
| replaceText(`${type}-version`, process.versions[type]) | |
| } | |
| }) |
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| /** | |
| * This file is loaded via the <script> tag in the index.html file and will | |
| * be executed in the renderer process for that window. No Node.js APIs are | |
| * available in this process because `nodeIntegration` is turned off and | |
| * `contextIsolation` is turned on. Use the contextBridge API in `preload.js` | |
| * to expose Node.js functionality from the main process. | |
| */ |
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