Add touch-down visual feedback to settings menus

Handle touch-down events separately from tap events in settings activities to provide immediate visual feedback when menu items are touched, before the tap is completed. This improves UI responsiveness by updating the selected index on touch-down.

src/activities/reader/EpubReaderFootnotesActivity.cpp

@@ -1,11 +1,13 @@
 #include "EpubReaderFootnotesActivity.h"
 
+#include <FreeInkUI.h>
 #include <GfxRenderer.h>
 #include <I18n.h>
 
 #include <algorithm>
 
 #include "MappedInputManager.h"
+#include "components/TouchRegistry.h"
 #include "components/UITheme.h"
 #include "fontIds.h"
 
@@ -18,6 +20,26 @@ void EpubReaderFootnotesActivity::onEnter() {
 void EpubReaderFootnotesActivity::onExit() { Activity::onExit(); }
 
 void EpubReaderFootnotesActivity::loop() {
+  const int visibleCount = std::max(1, renderer.getScreenHeight() / 36);
+  if (mappedInput.wasListScroll(selectedIndex, static_cast<int>(footnotes.size()), visibleCount)) {
+    requestUpdate();
+    return;
+  }
+
+  int downId = -1;
+  if (mappedInput.wasItemTouchedDown(downId) &&
+      freeink::ui::listSelectIndex(selectedIndex, downId, static_cast<int>(footnotes.size()))) {
+    requestUpdate();
+  }
+
+  int tappedId = -1;
+  if (mappedInput.wasItemTapped(tappedId) && tappedId >= 0 && tappedId < static_cast<int>(footnotes.size())) {
+    selectedIndex = tappedId;
+    setResult(FootnoteResult{footnotes[selectedIndex].href});
+    finish();
+    return;
+  }
+
   if (mappedInput.wasReleased(MappedInputManager::Button::Back)) {
     ActivityResult result;
     result.isCancelled = true;
@@ -102,6 +124,7 @@ void EpubReaderFootnotesActivity::render(RenderLock&&) {
       label = tr(STR_LINK);
     }
     renderer.drawText(UI_10_FONT_ID, marginLeft, y + 4, label.c_str(), !isSelected);
+    TouchRegistry::getInstance().add(Rect{contentX, y, contentWidth, lineHeight}, i, TouchRegistry::Item);
   }
 
   const auto labels = mappedInput.mapLabels(tr(STR_BACK), tr(STR_SELECT), "", "");