From e0a518fa13be218c1bdf2de50e0c8dd86522b9d4 Mon Sep 17 00:00:00 2001
From: Honey <me_honeyy@proton.me>
Date: Tue, 28 Apr 2026 09:36:08 +0200
Subject: [PATCH] =?UTF-8?q?fix:=20deduplicate=20NP=20background=20crossfad?=
 =?UTF-8?q?e=20=E2=80=94=20skip=20if=20URL=20unchanged?=
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_syncNpDirect is called 2-3x per skip from different call sites;
the crossfade now no-ops when the cover URL hasn't changed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/player.js | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/player.js b/src/player.js
index 6019c1b..b711994 100644
--- a/src/player.js
+++ b/src/player.js
@@ -58,7 +58,10 @@ export function updatePlayerUI(s) {
 }
 
 let _npBgCurr = 'a';
+let _npBgLastUrl = '';
 function _crossfadeNpBg(cv) {
+  if ((cv || '') === _npBgLastUrl) return;
+  _npBgLastUrl = cv || '';
   const currEl = document.getElementById(`np-bg-${_npBgCurr}`);
   const nextId = _npBgCurr === 'a' ? 'b' : 'a';
   const nextEl = document.getElementById(`np-bg-${nextId}`);