From 141612a5198420b1c244c7116f953a25a98fe4a1 Mon Sep 17 00:00:00 2001
From: hymbz <hymbz3516@gmail.com>
Date: Thu, 14 Dec 2023 21:46:28 +0800
Subject: [PATCH] =?UTF-8?q?perf:=20=E4=BC=98=E5=8C=96=E4=BD=BF=E7=94=A8?=
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---
 src/components/Manga/actions/operate.ts | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/components/Manga/actions/operate.ts b/src/components/Manga/actions/operate.ts
index 7a7f82c8..e8932bed 100644
--- a/src/components/Manga/actions/operate.ts
+++ b/src/components/Manga/actions/operate.ts
@@ -1,6 +1,6 @@
-import { debounce } from 'throttle-debounce';
+import { debounce, throttle } from 'throttle-debounce';
 
-import { getKeyboardCode } from 'helper';
+import { getKeyboardCode, isEqual } from 'helper';
 import type { State } from '../store';
 import { store, setState, refs, _setState } from '../store';
 import { zoom } from './zoom';
@@ -151,6 +151,11 @@ const scrollModeScroll = (dir: 'next' | 'prev') => {
   closeScrollLock();
 };
 
+let wheelDeltaY = 0;
+const clearWheelDeltaY = debounce(1000, () => {
+  wheelDeltaY = 0;
+});
+
 export const handleWheel = (e: WheelEvent) => {
   e.stopPropagation();
   if (e.ctrlKey || e.altKey) e.preventDefault();
@@ -174,6 +179,11 @@ export const handleWheel = (e: WheelEvent) => {
     return zoom(store.zoom.scale + (isWheelDown ? -25 : 25), e);
   }
 
+  wheelDeltaY += e.deltaY;
+  clearWheelDeltaY();
+  if (Math.abs(wheelDeltaY) < 40) return;
+  wheelDeltaY = 0;
+
   return turnPage(isWheelDown ? 'next' : 'prev');
 };