1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
|
#include "buttonhandler/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;
}
|