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#include "ButtonHandler.h"
using namespace Pinetime::Controllers;
void ButtonTimerCallback(TimerHandle_t xTimer) {
auto* sysTask = static_cast<Pinetime::System::SystemTask*>(pvTimerGetTimerID(xTimer));
sysTask->PushMessage(Pinetime::System::Messages::HandleButtonTimerEvent);
}
void ButtonHandler::Init(Pinetime::System::SystemTask* systemTask) {
buttonTimer = xTimerCreate("buttonTimer", pdMS_TO_TICKS(200), pdFALSE, systemTask, ButtonTimerCallback);
}
ButtonActions 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);
if (event == Events::Press) {
buttonPressed = true;
} else if (event == Events::Release) {
releaseTime = xTaskGetTickCount();
buttonPressed = false;
}
switch (state) {
case States::Idle:
if (event == Events::Press) {
xTimerChangePeriod(buttonTimer, doubleClickTime, 0);
xTimerStart(buttonTimer, 0);
state = States::Pressed;
}
break;
case States::Pressed:
if (event == Events::Press) {
if (xTaskGetTickCount() - releaseTime < doubleClickTime) {
xTimerStop(buttonTimer, 0);
state = States::Idle;
return ButtonActions::DoubleClick;
}
} else if (event == Events::Release) {
xTimerChangePeriod(buttonTimer, doubleClickTime, 0);
xTimerStart(buttonTimer, 0);
} else if (event == Events::Timer) {
if (buttonPressed) {
xTimerChangePeriod(buttonTimer, longPressTime - doubleClickTime, 0);
xTimerStart(buttonTimer, 0);
state = States::Holding;
} else {
state = States::Idle;
return ButtonActions::Click;
}
}
break;
case States::Holding:
if (event == Events::Release) {
xTimerStop(buttonTimer, 0);
state = States::Idle;
return ButtonActions::Click;
} else if (event == Events::Timer) {
xTimerChangePeriod(buttonTimer, longerPressTime - longPressTime - doubleClickTime, 0);
xTimerStart(buttonTimer, 0);
state = States::LongHeld;
return ButtonActions::LongPress;
}
break;
case States::LongHeld:
if (event == Events::Release) {
xTimerStop(buttonTimer, 0);
state = States::Idle;
} else if (event == Events::Timer) {
state = States::Idle;
return ButtonActions::LongerPress;
}
break;
}
return ButtonActions::None;
}
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