From 10b7769865dcebf8f828a48c5323d6b05ad11e94 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=95=D0=B3=D0=BE=D1=80=20=D0=9C=D0=B0=D1=80=D1=82=D1=8B?=
 =?UTF-8?q?=D0=BD=D0=BE=D0=B2?= <martynovegorOF@yandex.ru>
Date: Thu, 19 Feb 2026 17:59:15 +0700
Subject: [PATCH] fix: go to prev page on the first one, get teleported to the
 end of book (#970)

## Summary

1. Go to the first page in a .epub file.
2. Hit `Up` button
3. Get teleported to the last page :)

`TxtRenderActivity` seems to have this if check, but EPUB one does not.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**NO**_
---
 src/activities/reader/EpubReaderActivity.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/activities/reader/EpubReaderActivity.cpp b/src/activities/reader/EpubReaderActivity.cpp
index 07ecc107..029847c1 100644
--- a/src/activities/reader/EpubReaderActivity.cpp
+++ b/src/activities/reader/EpubReaderActivity.cpp
@@ -241,7 +241,7 @@ void EpubReaderActivity::loop() {
   if (prevTriggered) {
     if (section->currentPage > 0) {
       section->currentPage--;
-    } else {
+    } else if (currentSpineIndex > 0) {
       // We don't want to delete the section mid-render, so grab the semaphore
       {
         RenderLock lock(*this);