Add FigmaEmbed component

packages/components/src/button/stories/best-practices.mdx

@@ -1,9 +1,12 @@
 import { Meta } from '@storybook/blocks';
+import FigmaEmbed from '/storybook/components/figma-embed';
 
 <Meta title="Components/Actions/Button/Best Practices" />
 
 # Button
 
 ## Best Practices
 
-Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
+Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
+
+<FigmaEmbed url="https://www.figma.com/board/0ZfHa37xxWoMqy7McezUNX/WordPress.org-Storybook-Sitemap?node-id=126-3728&t=p2yCPmXnDfJ4wFnK-4" title="A sample embed" height="300" />

storybook/components/figma-embed/index.js

@@ -0,0 +1,47 @@
+/**
+ * Internal dependencies
+ */
+import './style.scss';
+
+// See https://www.figma.com/developers/embed#embed-a-figma-file
+const CONFIG = {
+	'embed-host': 'wordpress-storybook',
+	footer: false,
+	'page-selector': false,
+	'viewport-controls': true,
+};
+
+/**
+ * Embed Figma links in the Storybook.
+ *
+ * @param {Object} props
+ * @param {string} props.url   - Figma URL to embed.
+ * @param {string} props.title - Accessible title for the iframe.
+ */
+function FigmaEmbed( { url, title, ...props } ) {
+	const urlObj = new URL( url );
+
+	const queryParams = new URLSearchParams( urlObj.search );
+	Object.entries( CONFIG ).forEach( ( [ key, value ] ) => {
+		queryParams.set( key, value );
+	} );
+	urlObj.search = queryParams.toString();
+
+	urlObj.hostname = urlObj.hostname.replace(
+		'www.figma.com',
+		'embed.figma.com'
+	);
+
+	const normalizedUrl = urlObj.toString();
+
+	return (
+		<iframe
+			title={ title }
+			src={ normalizedUrl }
+			className="wp-storybook-figma-embed"
+			{ ...props }
+		/>
+	);
+}
+
+export default FigmaEmbed;

storybook/components/figma-embed/style.scss

@@ -0,0 +1,4 @@
+.wp-storybook-figma-embed {
+	width: 100%;
+	border: none;
+}