From 5c3ee5406f842cec9e4db2e297c006b12cbf5dfc Mon Sep 17 00:00:00 2001
From: Teddy Wing
Date: Wed, 6 May 2020 02:01:00 +0200
Subject: Move `with_player` to a new module

Move this function to a new module as I'd like to use it for checking
the "Watch Credits" button.

Also change from a callback to a `Promise`. Need to include the
`Promise` lib via ES2015 in tsconfig to be able to build with promises.
---
 src/fullscreen_credits.ts | 16 ++--------------
 src/player.ts             | 16 ++++++++++++++++
 2 files changed, 18 insertions(+), 14 deletions(-)
 create mode 100644 src/player.ts

(limited to 'src')

diff --git a/src/fullscreen_credits.ts b/src/fullscreen_credits.ts
index 6d174ed..d8b68b9 100644
--- a/src/fullscreen_credits.ts
+++ b/src/fullscreen_credits.ts
@@ -1,17 +1,5 @@
-function with_player (callback) {
-	var interval = setInterval(
-		function() {
-			var player = document.querySelector('.NFPlayer.nf-player-container');
+import with_player from './player';
 
-			if (player) {
-				clearInterval(interval);
-
-				callback(player);
-			}
-		},
-		1000
-	);
-}
 
 function init_mutation_observer (player) {
 	var observer = new MutationObserver(function(mutation_list) {
@@ -60,7 +48,7 @@ function init_mutation_observer (player) {
 }
 
 export default function init () {
-	with_player(function(player) {
+	with_player().then(function(player) {
 		init_mutation_observer(player);
 	});
 }
diff --git a/src/player.ts b/src/player.ts
new file mode 100644
index 0000000..ea0e541
--- /dev/null
+++ b/src/player.ts
@@ -0,0 +1,16 @@
+export default function with_player (): Promise<HTMLElement> {
+	return new Promise(function(resolve) {
+		const interval = setInterval(
+			function() {
+				const player = document.querySelector('.NFPlayer.nf-player-container');
+
+				if (player) {
+					clearInterval(interval);
+
+					resolve(player);
+				}
+			},
+			1000
+		);
+	});
+}
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