feat(el18): Use trim hats as keys for navigation (#3894)

Co-authored-by: elecpower <neilh713@tpg.com.au>
Co-authored-by: Peter Feerick <peter.feerick@gmail.com>

radio/src/main.cpp

@@ -268,6 +268,33 @@ void checkSpeakerVolume()
   }
 }
 
+#if defined(USE_HATS_AS_KEYS)
+void checkHatsAsKeys()
+{
+  uint8_t hatsMode = g_model.hatsMode == HATSMODE_GLOBAL ? g_eeGeneral.hatsMode
+                                                         : g_model.hatsMode;
+
+  static bool oldHatsModeKeys = hatsMode == HATSMODE_KEYS_ONLY;
+
+  if (hatsMode == HATSMODE_TRIMS_ONLY) {
+    setHatsAsKeys(false);
+  }
+
+  if (hatsMode == HATSMODE_KEYS_ONLY) {
+    setHatsAsKeys(true);
+  }
+
+  bool hatsModeKeys = getHatsAsKeys();
+
+  if (hatsModeKeys == oldHatsModeKeys) return;
+
+  oldHatsModeKeys = !oldHatsModeKeys;
+
+  audioKeyPress();
+  POPUP_BUBBLE(hatsModeKeys ? STR_HATSMODE_KEYS : STR_HATSMODE_TRIMS, 2000);
+}
+#endif
+
 #if defined(EEPROM)
 void checkEeprom()
 {
@@ -527,6 +554,10 @@ void perMain()
 
   checkBacklight();
 
+#if defined(USE_HATS_AS_KEYS)
+  checkHatsAsKeys();
+#endif
+
 #if !defined(LIBOPENUI)
   event_t evt = getEvent();
 #endif