From 41a0dae82532815d583316d8b777a0afbc235aad Mon Sep 17 00:00:00 2001
From: Peter <petermoldovia@yahoo.ca>
Date: Mon, 7 Aug 2023 19:08:13 +0200
Subject: [PATCH] refactor: fullscreen.js -> fullscreen.ts

---
 src/ui/{fullscreen.js => fullscreen.ts} | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)
 rename src/ui/{fullscreen.js => fullscreen.ts} (69%)

diff --git a/src/ui/fullscreen.js b/src/ui/fullscreen.ts
similarity index 69%
rename from src/ui/fullscreen.js
rename to src/ui/fullscreen.ts
index 36a2e9753..70a265120 100644
--- a/src/ui/fullscreen.js
+++ b/src/ui/fullscreen.ts
@@ -1,7 +1,9 @@
 import * as $j from 'jquery';
 
 export class Fullscreen {
-	constructor(fullscreenElement, fullscreenMode) {
+	fullscreenElement: any;
+
+	constructor(fullscreenElement, fullscreenMode = false) {
 		this.fullscreenElement = fullscreenElement;
 		if (fullscreenMode) {
 			fullscreenElement.addClass('fullscreenMode');
@@ -21,8 +23,14 @@ export class Fullscreen {
 	}
 }
 
-const isNativeFullscreenAPIUse = () =>
-	document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement;
+const isNativeFullscreenAPIUse = () => {
+	// NOTE: These properties were vendor-prefixed until very recently.
+	// Keeping vendor prefixes, though they make TS report an error.
+	return (
+		// @ts-expect-error 2551
+		document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement
+	);
+};
 
 const disableFullscreenLayout = (fullscreenElement) => {
 	fullscreenElement.removeClass('fullscreenMode');