mirrors/electron
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages 1 Wiki Activity Actions 1

docs: add Asynchronous Messages Fiddle example (#20441)

Browse source 
* docs: add Asynchronous Messages Fiddle example

* Update docs/fiddles/communication/two-processes/asynchronous-messages/main.js

Co-Authored-By: John Kleinschmidt <jkleinsc@github.com>

* Update docs/fiddles/communication/two-processes/asynchronous-messages/index.html

Co-Authored-By: John Kleinschmidt <jkleinsc@github.com>
This commit is contained in:
Erick Zhao 2019-10-10 09:49:07 -04:00 • committed by John Kleinschmidt
parent ec87917f58
commit c2e77e4429
3 changed files with 68 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

27
docs/fiddles/communication/two-processes/asynchronous-messages/index.html Normal file
View file

@ -0,0 +1,27 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<div>
<div>
<h1>Asynchronous messages</h1>
<i>Supports: Win, macOS, Linux <span>|</span> Process: Both</i>
<div>
<div>
<button id="async-msg">Ping</button>
<span id="async-reply"></span>
</div>
<p>Using <code>ipc</code> to send messages between processes asynchronously is the preferred method since it will return when finished without blocking other operations in the same process.</p>
<p>This example sends a "ping" from this process (renderer) to the main process. The main process then replies with "pong".</p>
</div>
</div>
</div>
<script>
// You can also require other files to run in this process
require('./renderer.js')
</script>
</body>
</html>

29
docs/fiddles/communication/two-processes/asynchronous-messages/main.js Normal file
View file

@ -0,0 +1,29 @@
const { app, BrowserWindow, ipcMain } = require('electron')
let mainWindow = null
function createWindow () {
const windowOptions = {
width: 600,
height: 400,
title: 'Asynchronous messages',
webPreferences: {
nodeIntegration: true
}
}
mainWindow = new BrowserWindow(windowOptions)
mainWindow.loadFile('index.html')
mainWindow.on('closed', () => {
mainWindow = null
})
}
app.on('ready', () => {
createWindow()
})
ipcMain.on('asynchronous-message', (event, arg) => {
event.sender.send('asynchronous-reply', 'pong')
})

12
docs/fiddles/communication/two-processes/asynchronous-messages/renderer.js Normal file
View file

@ -0,0 +1,12 @@
const { ipcRenderer } = require('electron')
const asyncMsgBtn = document.getElementById('async-msg')
asyncMsgBtn.addEventListener('click', () => {
ipcRenderer.send('asynchronous-message', 'ping')
})
ipcRenderer.on('asynchronous-reply', (event, arg) => {
const message = `Asynchronous message reply: ${arg}`
document.getElementById('async-reply').innerHTML = message
})