docs: Adds Dialogs Fiddle example (#20473)
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Yaser
Shelley Vohr
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docs/fiddles/native-ui/dialogs/information-dialog/index.html
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docs/fiddles/native-ui/dialogs/information-dialog/index.html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="UTF-8" />
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<title>Information Dialog</title>
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</head>
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<body>
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<div class="section-wrapper">
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<h1>Use system dialogs</h1>
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<h3>
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The <code>dialog</code> module in Electron allows you to use native
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system dialogs for opening files or directories, saving a file or
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displaying informational messages.
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</h3>
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<p>
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This is a main process module because this process is more efficient
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with native utilities and it allows the call to happen without
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interrupting the visible elements in your page's renderer process.
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</p>
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<p>
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Open the
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<a href="http://electron.atom.io/docs/api/dialog/">
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full API documentation (opens in new window)
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</a>
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in your browser.
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</p>
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</div>
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<div>
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<div>
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<h2>Information Dialog</h2>
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<div>
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<div>
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<button id="information-dialog">
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View Demo
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</button>
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<span id="info-selection"></span>
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</div>
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<p>
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In this demo, the <code>ipc</code> module is used to send a message
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from the renderer process instructing the main process to launch the
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information dialog. Options may be provided for responses which can
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then be relayed back to the renderer process.
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</p>
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<p>
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Note: The <code>title</code> property is not displayed in macOS.
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</p>
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<p>
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An information dialog can contain an icon, your choice of buttons,
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title and message.
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</p>
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<h5>Renderer Process</h5>
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<pre>
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<code>
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const {ipcRenderer} = require('electron')
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const informationBtn = document.getElementById('information-dialog')
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informationBtn.addEventListener('click', (event) => {
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ipcRenderer.send('open-information-dialog')
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})
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ipcRenderer.on('information-dialog-selection', (event, index) => {
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let message = 'You selected '
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if (index === 0) message += 'yes.'
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else message += 'no.'
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document.getElementById('info-selection').innerHTML = message
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})
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</code>
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</pre>
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<h5>Main Process</h5>
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<pre>
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<code>
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const {ipcMain, dialog} = require('electron')
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ipcMain.on('open-information-dialog', (event) => {
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const options = {
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type: 'info',
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title: 'Information',
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message: "This is an information dialog. Isn't it nice?",
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buttons: ['Yes', 'No']
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}
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dialog.showMessageBox(options, (index) => {
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event.sender.send('information-dialog-selection', index)
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})
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})
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</code>
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</pre>
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</div>
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</div>
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</div>
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<script>
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// You can also require other files to run in this process
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require("./renderer.js");
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</script>
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</body>
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</html>
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70
docs/fiddles/native-ui/dialogs/information-dialog/main.js
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docs/fiddles/native-ui/dialogs/information-dialog/main.js
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// Modules to control application life and create native browser window
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const { app, BrowserWindow, ipcMain, dialog } = require('electron')
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// Keep a global reference of the window object, if you don't, the window will
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// be closed automatically when the JavaScript object is garbage collected.
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let mainWindow
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function createWindow () {
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// Create the browser window.
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mainWindow = new BrowserWindow({
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width: 800,
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height: 600,
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webPreferences: {
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nodeIntegration: true
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}
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})
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// and load the index.html of the app.
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mainWindow.loadFile('index.html')
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// Open the DevTools.
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// mainWindow.webContents.openDevTools()
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// Emitted when the window is closed.
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mainWindow.on('closed', function () {
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// Dereference the window object, usually you would store windows
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// in an array if your app supports multi windows, this is the time
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// when you should delete the corresponding element.
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mainWindow = null
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})
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}
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// This method will be called when Electron has finished
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// initialization and is ready to create browser windows.
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// Some APIs can only be used after this event occurs.
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app.on('ready', createWindow)
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// Quit when all windows are closed.
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app.on('window-all-closed', function () {
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// On OS X it is common for applications and their menu bar
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// to stay active until the user quits explicitly with Cmd + Q
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if (process.platform !== 'darwin') {
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app.quit()
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}
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})
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app.on('activate', function () {
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// On OS X it's common to re-create a window in the app when the
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// dock icon is clicked and there are no other windows open.
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if (mainWindow === null) {
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createWindow()
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}
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})
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ipcMain.on('open-information-dialog', event => {
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const options = {
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type: 'info',
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title: 'Information',
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message: "This is an information dialog. Isn't it nice?",
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buttons: ['Yes', 'No']
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}
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dialog.showMessageBox(options, index => {
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event.sender.send('information-dialog-selection', index)
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})
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})
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// In this file you can include the rest of your app's specific main process
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// code. You can also put them in separate files and require them here.
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const { ipcRenderer, shell } = require('electron')
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const informationBtn = document.getElementById('information-dialog')
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const links = document.querySelectorAll('a[href]')
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informationBtn.addEventListener('click', event => {
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ipcRenderer.send('open-information-dialog')
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})
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ipcRenderer.on('information-dialog-selection', (event, index) => {
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let message = 'You selected '
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if (index === 0) message += 'yes.'
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else message += 'no.'
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document.getElementById('info-selection').innerHTML = message
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})
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Array.prototype.forEach.call(links, (link) => {
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const url = link.getAttribute('href')
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if (url.indexOf('http') === 0) {
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link.addEventListener('click', (e) => {
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e.preventDefault()
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shell.openExternal(url)
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})
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}
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})
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