From fc5fed170735760217053ecb66ff816634ca8246 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=A7=92=E7=A0=82=E7=B3=96?=
 <90336521+lings03@users.noreply.github.com>
Date: Tue, 3 Jun 2025 17:35:45 +0800
Subject: [PATCH] Fix history of page when show single image on first page
 (#393)

---
 lib/pages/reader/reader.dart | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/pages/reader/reader.dart b/lib/pages/reader/reader.dart
index df047f4..199ad62 100644
--- a/lib/pages/reader/reader.dart
+++ b/lib/pages/reader/reader.dart
@@ -267,7 +267,15 @@ class _ReaderState extends State<Reader>
         history!.page = images?.length ?? 1;
       } else {
         /// Record the first image of the page
-        history!.page = (page - 1) * imagesPerPage + 1;
+        if (!showSingleImageOnFirstPage || imagesPerPage == 1) {
+          history!.page = (page - 1) * imagesPerPage + 1;
+        } else {
+          if (page == 1) {
+            history!.page = 1;
+          } else {
+            history!.page = (page - 2) * imagesPerPage + 2;
+          }
+        }
       }
       history!.maxPage = images?.length ?? 1;
       if (widget.chapters?.isGrouped ?? false) {