From 1a53dccebd126ea4c2cc2e593667c64d9954dc57 Mon Sep 17 00:00:00 2001
From: IFAKA <99131130+IFAKA@users.noreply.github.com>
Date: Fri, 19 Dec 2025 13:23:43 +0100
Subject: [PATCH] Fix title truncation crash for short titles (#63)

## Problem
The status bar title truncation loop crashes when the chapter title is
shorter than 8 characters.

```cpp
// title.length() - 8 underflows when length < 8 (size_t is unsigned)
title = title.substr(0, title.length() - 8) + "...";
```

## Fix
Added a length guard to skip truncation for titles that are too short to
truncate safely.

## Testing
- Builds successfully with `pio run`
- Affects: `src/activities/reader/EpubReaderActivity.cpp`
---
 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 f4e45363..3bae96d6 100644
--- a/src/activities/reader/EpubReaderActivity.cpp
+++ b/src/activities/reader/EpubReaderActivity.cpp
@@ -382,7 +382,7 @@ void EpubReaderActivity::renderStatusBar() const {
     const auto tocItem = epub->getTocItem(tocIndex);
     title = tocItem.title;
     titleWidth = renderer.getTextWidth(SMALL_FONT_ID, title.c_str());
-    while (titleWidth > availableTextWidth) {
+    while (titleWidth > availableTextWidth && title.length() > 11) {
       title = title.substr(0, title.length() - 8) + "...";
       titleWidth = renderer.getTextWidth(SMALL_FONT_ID, title.c_str());
     }