PFW-1404 Only create button event when the button is released

src/modules/buttons.h

@@ -38,6 +38,8 @@ public:
     /// @param index of the button to check
     inline bool ButtonPressed(uint8_t index) const { return buttons[index].Pressed(); }
 
+    inline bool ButtonReleased(uint8_t index) const { return buttons[index].Released(); }
+
     /// @returns true if any of the button is pressed
     inline bool AnyButtonPressed() const {
         for (uint8_t i = 0; i < config::buttonCount; ++i) {

src/modules/debouncer.h

@@ -19,6 +19,7 @@ public:
 
     /// @returns true if debounced value is currently considered as pressed
     inline bool Pressed() const { return f.state == State::WaitForRelease; }
+    inline bool Released() const { return f.state == State::Update; }
 
     /// State machine stepping routine
     void Step(uint16_t time, bool press);

src/modules/user_input.cpp

@@ -8,11 +8,11 @@ namespace user_input {
 UserInput userInput;
 
 void UserInput::Step() {
-    if (buttons::buttons.ButtonPressed(mb::Left))
+    if (buttons::buttons.ButtonReleased(mb::Left))
         eventQueue.push(Event::Left);
-    if (buttons::buttons.ButtonPressed(mb::Middle))
+    if (buttons::buttons.ButtonReleased(mb::Middle))
         eventQueue.push(Event::Middle);
-    if (buttons::buttons.ButtonPressed(mb::Right))
+    if (buttons::buttons.ButtonReleased(mb::Right))
         eventQueue.push(Event::Right);
 }