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Enable axis in virtual_input device only when needed

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This commit is contained in:
max
2020-12-21 11:47:25 +01:00
parent ffcfb3da82
commit 1f02882971
3 changed files with 42 additions and 15 deletions
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45
src/logid/InputDevice.cpp
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@@ -77,26 +77,28 @@ InputDevice::~InputDevice()
void InputDevice::registerKey(uint code)
{
if (registered_keys[code]) {
// TODO: Maybe print error message, if wrong code is passed?
if(registered_keys[code] || code > KEY_CNT) {
return;
}
libevdev_uinput_destroy(ui_device);
libevdev_enable_event_code(device, EV_KEY, code, nullptr);
int err = libevdev_uinput_create_from_device(device,
LIBEVDEV_UINPUT_OPEN_MANAGED, &ui_device);
if(err != 0) {
libevdev_free(device);
device = nullptr;
ui_device = nullptr;
throw std::system_error(-err, std::generic_category());
}
_enableEvent(EV_KEY, code);
registered_keys[code] = true;
}
void InputDevice::registerAxis(uint axis)
{
// TODO: Maybe print error message, if wrong code is passed?
if(registered_axis[axis] || axis > REL_CNT) {
return;
}
_enableEvent(EV_REL, axis);
registered_axis[axis] = true;
}
void InputDevice::moveAxis(uint axis, int movement)
{
_sendEvent(EV_REL, axis, movement);
@@ -148,6 +150,23 @@ uint InputDevice::_toEventCode(uint type, const std::string& name)
return code;
}
void InputDevice::_enableEvent(const uint type, const uint code)
{
libevdev_uinput_destroy(ui_device);
libevdev_enable_event_code(device, type, code, nullptr);
int err = libevdev_uinput_create_from_device(device,
LIBEVDEV_UINPUT_OPEN_MANAGED, &ui_device);
if(err != 0) {
libevdev_free(device);
device = nullptr;
ui_device = nullptr;
throw std::system_error(-err, std::generic_category());
}
}
void InputDevice::_sendEvent(uint type, uint code, int value)
{
libevdev_uinput_write_event(ui_device, type, code, value);