107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/*
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* Copyright 2019-2020 PixlOne
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <system_error>
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#include <utility>
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#include "InputDevice.h"
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extern "C"
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{
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#include <libevdev/libevdev.h>
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#include <libevdev/libevdev-uinput.h>
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};
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using namespace logid;
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InputDevice::InvalidEventCode::InvalidEventCode(std::string name)
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{
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_what = "Invalid event code " + name;
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}
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const char* InputDevice::InvalidEventCode::what() const noexcept
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{
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return _what.c_str();
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}
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InputDevice::InputDevice(const char* name)
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{
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device = libevdev_new();
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libevdev_set_name(device, name);
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///TODO: Is it really a good idea to enable all events?
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libevdev_enable_event_type(device, EV_KEY);
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for(int i = 0; i < KEY_CNT; i++)
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libevdev_enable_event_code(device, EV_KEY, i, nullptr);
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libevdev_enable_event_type(device, EV_REL);
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for(int i = 0; i < REL_CNT; i++)
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libevdev_enable_event_code(device, EV_REL, i, nullptr);
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int err = libevdev_uinput_create_from_device(device,
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LIBEVDEV_UINPUT_OPEN_MANAGED, &ui_device);
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if(err != 0)
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throw std::system_error(-err, std::generic_category());
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}
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InputDevice::~InputDevice()
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{
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libevdev_uinput_destroy(ui_device);
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libevdev_free(device);
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}
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void InputDevice::moveAxis(uint axis, int movement)
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{
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_sendEvent(EV_REL, axis, movement);
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}
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void InputDevice::pressKey(uint code)
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{
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_sendEvent(EV_KEY, code, 1);
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}
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void InputDevice::releaseKey(uint code)
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{
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_sendEvent(EV_KEY, code, 0);
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}
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uint InputDevice::toKeyCode(std::string name)
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{
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return _toEventCode(EV_KEY, std::move(name));
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}
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uint InputDevice::toAxisCode(std::string name)
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{
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return _toEventCode(EV_KEY, std::move(name));
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}
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uint InputDevice::_toEventCode(uint type, const std::string& name)
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{
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int code = libevdev_event_code_from_name(type, name.c_str());
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if(code == -1)
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throw InvalidEventCode(name);
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return code;
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}
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void InputDevice::_sendEvent(uint type, uint code, int value)
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{
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libevdev_uinput_write_event(ui_device, type, code, value);
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libevdev_uinput_write_event(ui_device, EV_SYN, SYN_REPORT, 0);
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} |