update packages and add valign

scripts/reveal.js/js/index.ts

@@ -0,0 +1,74 @@
+/// <reference path="./reveal.d.ts" />
+
+import { RevealConfig } from './config.ts';
+import type { RevealApi } from './reveal';
+
+// @ts-ignore
+import Deck, { VERSION } from './reveal.js';
+
+/**
+ * Expose the Reveal class to the window. To create a
+ * new instance:
+ * let deck = new Reveal( document.querySelector( '.reveal' ), {
+ *   controls: false
+ * } );
+ * deck.initialize().then(() => {
+ *   // reveal.js is ready
+ * });
+ */
+const Reveal: {
+	initialize: (options?: RevealConfig) => Promise<RevealApi>;
+	[key: string]: any;
+} = Deck;
+
+/**
+ * The below is a thin shell that mimics the pre 4.0
+ * reveal.js API and ensures backwards compatibility.
+ * This API only allows for one Reveal instance per
+ * page, whereas the new API above lets you run many
+ * presentations on the same page.
+ *
+ * Reveal.initialize( { controls: false } ).then(() => {
+ *   // reveal.js is ready
+ * });
+ */
+
+type RevealApiFunction = (deck: RevealApi) => any;
+
+const enqueuedAPICalls: RevealApiFunction[] = [];
+
+Reveal.initialize = (options?: RevealConfig) => {
+	const revealElement = document.querySelector('.reveal');
+
+	if (!(revealElement instanceof HTMLElement)) {
+		throw new Error('Unable to find presentation root (<div class="reveal">).');
+	}
+
+	// Create our singleton reveal.js instance
+	Object.assign(Reveal, new Deck(revealElement, options));
+
+	// Invoke any enqueued API calls
+	enqueuedAPICalls.map((method) => method(Reveal as RevealApi));
+
+	return Reveal.initialize();
+};
+
+/**
+ * The pre 4.0 API let you add event listener before
+ * initializing. We maintain the same behavior by
+ * queuing up premature API calls and invoking all
+ * of them when Reveal.initialize is called.
+ */
+(
+	['configure', 'on', 'off', 'addEventListener', 'removeEventListener', 'registerPlugin'] as const
+).forEach((method) => {
+	Reveal[method] = (...args: any) => {
+		enqueuedAPICalls.push((deck) => (deck[method] as any).call(null, ...args));
+	};
+});
+
+Reveal.isReady = () => false;
+
+Reveal.VERSION = VERSION;
+
+export default Reveal;