Review changes

src/activities/reader/XtcReaderChapterSelectionActivity.cpp

@@ -5,6 +5,7 @@
 
 #include <algorithm>
 
+#include "ButtonEventManager.h"
 #include "MappedInputManager.h"
 #include "components/UITheme.h"
 #include "fontIds.h"
@@ -47,6 +48,10 @@ void XtcReaderChapterSelectionActivity::onEnter() {
 void XtcReaderChapterSelectionActivity::onExit() { Activity::onExit(); }
 
 void XtcReaderChapterSelectionActivity::loop() {
+  if (!xtc) {
+    return;
+  }
+
   const int pageItems = getPageItems();
   const int totalItems = static_cast<int>(xtc->getChapters().size());
 
@@ -82,11 +87,19 @@ void XtcReaderChapterSelectionActivity::loop() {
   }
 
   buttonNavigator.onNextRelease([this, totalItems] {
+    if (ButtonEventManager::hasDoubleAction(MappedInputManager::Button::Right) ||
+        ButtonEventManager::hasDoubleAction(MappedInputManager::Button::PageForward)) {
+      return;
+    }
     selectorIndex = ButtonNavigator::nextIndex(selectorIndex, totalItems);
     requestUpdate();
   });
 
   buttonNavigator.onPreviousRelease([this, totalItems] {
+    if (ButtonEventManager::hasDoubleAction(MappedInputManager::Button::Left) ||
+        ButtonEventManager::hasDoubleAction(MappedInputManager::Button::PageBack)) {
+      return;
+    }
     selectorIndex = ButtonNavigator::previousIndex(selectorIndex, totalItems);
     requestUpdate();
   });