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The Electron IPC DOCS/FIDDLES/IPC/PATTERN-1 (21.2.0), Renderer to main (one-way), with comments
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// 1. the renderer attaches a listener to the button defined in the html file | |
// . on user click, the listener calls the function setTitle passing on the value from the input element | |
// 2. the preload defines the function that will be called by setTitle and pass on the title sending the event set-title | |
// 3. the main attaches a listener for the event set-title | |
// that will get the title an put it into the browser window title |
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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> | |
Title: <input id="title"/> | |
<button id="btn" type="button">Set</button> | |
<script src="./renderer.js"></script> | |
</body> | |
</html> |
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const {app, BrowserWindow, ipcMain} = require('electron') | |
const path = require('path') | |
function createWindow () { | |
const mainWindow = new BrowserWindow({ | |
webPreferences: { | |
preload: path.join(__dirname, 'preload.js') | |
} | |
}) | |
// 3. the main attaches a listener for the event set-title | |
// that will get the title an put it into the browser window title | |
ipcMain.on('set-title', (event, title) => { | |
const webContents = event.sender | |
const win = BrowserWindow.fromWebContents(webContents) | |
win.setTitle(title) | |
}) | |
mainWindow.loadFile('index.html') | |
} | |
app.whenReady().then(() => { | |
createWindow() | |
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": "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" | |
} | |
} |
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// 2. the preload defines the function that will be called by setTitle and pass on the title sending the event set-title | |
const { contextBridge, ipcRenderer } = require('electron') | |
contextBridge.exposeInMainWorld('electronAPI', { | |
setTitle: (title) => ipcRenderer.send('set-title', title) | |
}) |
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// 1. the renderer attaches a listener to the button defined in the html file | |
// . on user click, the listener calls the function setTitle passing on the value from the input element | |
const setButton = document.getElementById('btn') | |
const titleInput = document.getElementById('title') | |
setButton.addEventListener('click', () => { | |
const title = titleInput.value | |
window.electronAPI.setTitle(title) | |
}); |
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/* styles.css */ | |
/* Add styles here to customize the appearance of your app */ |
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