Use enum classes, remove old comment

src/buttonhandler/ButtonHandler.cpp

@@ -4,7 +4,7 @@ using namespace Pinetime::Controllers;
 
 void ButtonTimerCallback(TimerHandle_t xTimer) {
   auto* buttonHandler = static_cast<ButtonHandler*>(pvTimerGetTimerID(xTimer));
-  buttonHandler->HandleEvent(ButtonHandler::Timer);
+  buttonHandler->HandleEvent(ButtonHandler::Events::Timer);
 }
 
 void ButtonHandler::Init(Pinetime::System::SystemTask* systemTask) {
@@ -12,7 +12,7 @@ void ButtonHandler::Init(Pinetime::System::SystemTask* systemTask) {
   buttonTimer = xTimerCreate("buttonTimer", 0, pdFALSE, this, ButtonTimerCallback);
 }
 
-void ButtonHandler::HandleEvent(events event) {
+void ButtonHandler::HandleEvent(Events event) {
   static constexpr TickType_t doubleClickTime = pdMS_TO_TICKS(200);
   static constexpr TickType_t longPressTime = pdMS_TO_TICKS(400);
   static constexpr TickType_t longerPressTime = pdMS_TO_TICKS(2000);
@@ -24,61 +24,61 @@ void ButtonHandler::HandleEvent(events event) {
     systemTask->PushMessage(System::Messages::ReloadIdleTimer);
   }
 
-  if (event == Press) {
+  if (event == Events::Press) {
     buttonPressed = true;
-  } else if (event == Release) {
+  } else if (event == Events::Release) {
     releaseTime = xTaskGetTickCount();
     buttonPressed = false;
   }
 
   switch (state) {
-    case Idle:
-      if (event == Press) {
+    case States::Idle:
+      if (event == Events::Press) {
         xTimerChangePeriod(buttonTimer, doubleClickTime, 0);
         xTimerStart(buttonTimer, 0);
-        state = Pressed;
+        state = States::Pressed;
       }
       break;
-    case Pressed:
-      if (event == Press) {
+    case States::Pressed:
+      if (event == Events::Press) {
         if (xTaskGetTickCount() - releaseTime < doubleClickTime) {
           systemTask->PushMessage(System::Messages::OnButtonDoubleClicked);
           xTimerStop(buttonTimer, 0);
-          state = Idle;
+          state = States::Idle;
         }
-      } else if (event == Release) {
+      } else if (event == Events::Release) {
         xTimerChangePeriod(buttonTimer, doubleClickTime, 0);
         xTimerStart(buttonTimer, 0);
-      } else if (event == Timer) {
+      } else if (event == Events::Timer) {
         if (buttonPressed) {
           xTimerChangePeriod(buttonTimer, longPressTime - doubleClickTime, 0);
           xTimerStart(buttonTimer, 0);
-          state = Holding;
+          state = States::Holding;
         } else {
           systemTask->PushMessage(System::Messages::OnButtonPushed);
-          state = Idle;
+          state = States::Idle;
         }
       }
       break;
-    case Holding:
-      if (event == Release) {
+    case States::Holding:
+      if (event == Events::Release) {
         systemTask->PushMessage(System::Messages::OnButtonPushed);
         xTimerStop(buttonTimer, 0);
-        state = Idle;
-      } else if (event == Timer) {
+        state = States::Idle;
+      } else if (event == Events::Timer) {
         xTimerChangePeriod(buttonTimer, longerPressTime - longPressTime - doubleClickTime, 0);
         xTimerStart(buttonTimer, 0);
         systemTask->PushMessage(System::Messages::OnButtonLongPressed);
-        state = LongHeld;
+        state = States::LongHeld;
       }
       break;
-    case LongHeld:
-      if (event == Release) {
+    case States::LongHeld:
+      if (event == Events::Release) {
         xTimerStop(buttonTimer, 0);
-        state = Idle;
-      } else if (event == Timer) {
+        state = States::Idle;
+      } else if (event == Events::Timer) {
         systemTask->PushMessage(System::Messages::OnButtonLongerPressed);
-        state = Idle;
+        state = States::Idle;
       }
       break;
   }

src/buttonhandler/ButtonHandler.h

@@ -8,17 +8,17 @@ namespace Pinetime {
   namespace Controllers {
     class ButtonHandler {
     public:
-      enum events { Press, Release, Timer };
+      enum class Events : uint8_t { Press, Release, Timer };
       void Init(Pinetime::System::SystemTask* systemTask);
-      void HandleEvent(events event);
+      void HandleEvent(Events event);
 
     private:
+      enum class States : uint8_t { Idle, Pressed, Holding, LongHeld };
       Pinetime::System::SystemTask* systemTask = nullptr;
       TickType_t releaseTime = 0;
       TimerHandle_t buttonTimer;
       bool buttonPressed = false;
-      enum states { Idle, Pressed, Holding, LongHeld };
-      states state = Idle;
+      States state = States::Idle;
     };
   }
 }

src/main.cpp

@@ -178,7 +178,6 @@ void nrfx_gpiote_evt_handler(nrfx_gpiote_pin_t pin, nrf_gpiote_polarity_t action
     xTimerStartFromISR(debounceChargeTimer, &xHigherPriorityTaskWoken);
     portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
   } else if (pin == Pinetime::PinMap::Button) {
-    // This activates on button release as well due to bouncing
     xTimerStartFromISR(debounceTimer, &xHigherPriorityTaskWoken);
     portYIELD_FROM_ISR(xHigherPriorityTaskWoken);
   }

src/systemtask/SystemTask.cpp

@@ -357,9 +357,9 @@ void SystemTask::Work() {
           break;
         case Messages::HandleButtonEvent:
           if (nrf_gpio_pin_read(Pinetime::PinMap::Button) == 0) {
-            buttonHandler.HandleEvent(Pinetime::Controllers::ButtonHandler::Release);
+            buttonHandler.HandleEvent(Pinetime::Controllers::ButtonHandler::Events::Release);
           } else {
-            buttonHandler.HandleEvent(Pinetime::Controllers::ButtonHandler::Press);
+            buttonHandler.HandleEvent(Pinetime::Controllers::ButtonHandler::Events::Press);
           }
           break;
         case Messages::OnDisplayTaskSleeping: