From 0cf45db39df8376e8ec700d34429d56fe203af8c Mon Sep 17 00:00:00 2001
From: Souma <33572696+Souma-Sumire@users.noreply.github.com>
Date: Sat, 16 Sep 2023 00:44:58 +0800
Subject: [PATCH] raidboss: prevent duplicate button creation (#5794)

created only once, rather than multiple times.
---
 ui/raidboss/autoplay_helper.ts | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/ui/raidboss/autoplay_helper.ts b/ui/raidboss/autoplay_helper.ts
index 9a7cff5c1b..920f05da3e 100644
--- a/ui/raidboss/autoplay_helper.ts
+++ b/ui/raidboss/autoplay_helper.ts
@@ -1,16 +1,27 @@
 export default class AutoplayHelper {
+  private static context?: AudioContext;
+  private static isButtonCreated = false;
+
+  private static getContext(): AudioContext {
+    AutoplayHelper.context ??= new AudioContext();
+    return AutoplayHelper.context;
+  }
+
   static CheckIfAlreadyRunning(): boolean {
     // This check will only ever succeed on running Chromium passing
     //  --autoplay-policy=no-user-gesture-required
     // as command line argument or configuring CEF the correct way.
     // Once https://bugs.chromium.org/p/chromium/issues/detail?id=1106380
     // is fixed this function will return false on every (up-to-date) browser
-    const context = new AudioContext();
+    const context = AutoplayHelper.getContext();
     return context.state === 'running';
   }
 
   static Prompt(): void {
-    const context = new AudioContext();
+    if (AutoplayHelper.isButtonCreated) {
+      return;
+    }
+    const context = AutoplayHelper.getContext();
     const button = document.createElement('button');
     button.innerText = 'Click to enable audio';
     button.classList.add('autoplay-helper-button');
@@ -21,6 +32,7 @@ export default class AutoplayHelper {
       button.remove();
     };
     document.body.appendChild(button);
+    AutoplayHelper.isButtonCreated = true;
   }
 
   static CheckAndPrompt(): void {