From 66811bf50babc726d54509454f836b5c60eddc21 Mon Sep 17 00:00:00 2001
From: Seth <32936504+selunders@users.noreply.github.com>
Date: Mon, 12 Jan 2026 00:59:02 -0800
Subject: [PATCH] Add navigation hints to ChapterSelectionActivities (#294)

## Summary

Add navigation hints to Chapter Select - #190

### Before

![Mi 11X_20260108_214114_lmc_8
4](https://github.com/user-attachments/assets/45031d21-2c6c-4b7d-a5cc-6ad111bf5a70)

### After
![Mi 11X_20260108_213803_lmc_8
4](https://github.com/user-attachments/assets/1fa4ef22-63e4-4adb-8fc5-5fb8c7fa79fa)
---
 .../reader/EpubReaderChapterSelectionActivity.cpp          | 7 ++++++-
 .../reader/XtcReaderChapterSelectionActivity.cpp           | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/src/activities/reader/EpubReaderChapterSelectionActivity.cpp b/src/activities/reader/EpubReaderChapterSelectionActivity.cpp
index 63f1e5a..8f3ecb8 100644
--- a/src/activities/reader/EpubReaderChapterSelectionActivity.cpp
+++ b/src/activities/reader/EpubReaderChapterSelectionActivity.cpp
@@ -16,7 +16,9 @@ int EpubReaderChapterSelectionActivity::getPageItems() const {
   constexpr int lineHeight = 30;
 
   const int screenHeight = renderer.getScreenHeight();
-  const int availableHeight = screenHeight - startY;
+  const int endY = screenHeight - lineHeight;
+
+  const int availableHeight = endY - startY;
   int items = availableHeight / lineHeight;
 
   // Ensure we always have at least one item per page to avoid division by zero
@@ -134,5 +136,8 @@ void EpubReaderChapterSelectionActivity::renderScreen() {
                       tocIndex != selectorIndex);
   }
 
+  const auto labels = mappedInput.mapLabels("« Back", "Select", "Up", "Down");
+  renderer.drawButtonHints(UI_10_FONT_ID, labels.btn1, labels.btn2, labels.btn3, labels.btn4);
+
   renderer.displayBuffer();
 }
diff --git a/src/activities/reader/XtcReaderChapterSelectionActivity.cpp b/src/activities/reader/XtcReaderChapterSelectionActivity.cpp
index fd73292..b2cfeca 100644
--- a/src/activities/reader/XtcReaderChapterSelectionActivity.cpp
+++ b/src/activities/reader/XtcReaderChapterSelectionActivity.cpp
@@ -14,7 +14,9 @@ int XtcReaderChapterSelectionActivity::getPageItems() const {
   constexpr int lineHeight = 30;
 
   const int screenHeight = renderer.getScreenHeight();
-  const int availableHeight = screenHeight - startY;
+  const int endY = screenHeight - lineHeight;
+
+  const int availableHeight = endY - startY;
   int items = availableHeight / lineHeight;
   if (items < 1) {
     items = 1;
@@ -147,5 +149,8 @@ void XtcReaderChapterSelectionActivity::renderScreen() {
     renderer.drawText(UI_10_FONT_ID, 20, 60 + (i % pageItems) * 30, title, i != selectorIndex);
   }
 
+  const auto labels = mappedInput.mapLabels("« Back", "Select", "Up", "Down");
+  renderer.drawButtonHints(UI_10_FONT_ID, labels.btn1, labels.btn2, labels.btn3, labels.btn4);
+
   renderer.displayBuffer();
 }