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<head>
<meta charset="UTF-8" />
<title>Information Dialog</title>
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<body>
<div class="section-wrapper">
<h1>Use system dialogs</h1>
<h3>
The <code>dialog</code> module in Electron allows you to use native
system dialogs for opening files or directories, saving a file or
displaying informational messages.
</h3>
<p>
This is a main process module because this process is more efficient
with native utilities and it allows the call to happen without
interrupting the visible elements in your page's renderer process.
</p>
<p>
Open the
<a href="https://www.electronjs.org/docs/latest/api/dialog/">
full API documentation (opens in new window)
</a>
in your browser.
</p>
</div>
<div>
<div>
<h2>Information Dialog</h2>
<div>
<div>
<button id="information-dialog">
View Demo
</button>
<span id="info-selection"></span>
</div>
<p>
In this demo, the <code>ipc</code> module is used to send a message
from the renderer process instructing the main process to launch the
information dialog. Options may be provided for responses which can
then be relayed back to the renderer process.
</p>
<p>
Note: The <code>title</code> property is not displayed in macOS.
</p>
<p>
An information dialog can contain an icon, your choice of buttons,
title and message.
</p>
<h5>Renderer Process</h5>
<pre>
<code>
const {ipcRenderer} = require('electron')
const informationBtn = document.getElementById('information-dialog')
informationBtn.addEventListener('click', (event) => {
ipcRenderer.send('open-information-dialog')
})
ipcRenderer.on('information-dialog-selection', (event, index) => {
let message = 'You selected '
if (index === 0) message += 'yes.'
else message += 'no.'
document.getElementById('info-selection').innerHTML = message
})
</code>
</pre>
<h5>Main Process</h5>
<pre>
<code>
const {ipcMain, dialog} = require('electron')
ipcMain.on('open-information-dialog', (event) => {
const options = {
type: 'info',
title: 'Information',
message: "This is an information dialog. Isn't it nice?",
buttons: ['Yes', 'No']
}
dialog.showMessageBox(options, (index) => {
event.sender.send('information-dialog-selection', index)
})
})
</code>
</pre>
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<script src="renderer.js"></script>
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