2019-11-01 05:04:24 +11:00
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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>Save Dialog</title>
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</head>
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<body>
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<div>
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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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2020-02-16 16:46:41 -08:00
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<a href="https://electronjs.org/docs/api/dialog/">
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2019-11-01 05:04:24 +11:00
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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>Save Dialog</h2>
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<div>
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<div>
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<button button id="save-dialog">View Demo</button>
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<span id="file-saved"></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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save dialog. It returns the path selected by the user which can be
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relayed back to the renderer process.
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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 saveBtn = document.getElementById('save-dialog')
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saveBtn.addEventListener('click', (event) => {
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ipcRenderer.send('save-dialog')
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})
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ipcRenderer.on('saved-file', (event, path) => {
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if (!path) path = 'No path'
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document.getElementById('file-saved').innerHTML = `Path selected: ${path}`
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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('save-dialog', (event) => {
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const options = {
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title: 'Save an Image',
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filters: [
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{ name: 'Images', extensions: ['jpg', 'png', 'gif'] }
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]
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}
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dialog.showSaveDialog(options, (filename) => {
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event.sender.send('saved-file', filename)
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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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