kwin/libinput/device.cpp

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/********************************************************************
KWin - the KDE window manager
This file is part of the KDE project.
Copyright (C) 2016 Martin Gräßlin <mgraesslin@kde.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*********************************************************************/
#include "device.h"
#include <QDBusConnection>
#include <linux/input.h>
#include <config-kwin.h>
namespace KWin
{
namespace LibInput
{
static bool checkAlphaNumericKeyboard(libinput_device *device)
{
for (uint i = KEY_1; i <= KEY_0; i++) {
if (libinput_device_keyboard_has_key(device, i) == 0) {
return false;
}
}
for (uint i = KEY_Q; i <= KEY_P; i++) {
if (libinput_device_keyboard_has_key(device, i) == 0) {
return false;
}
}
for (uint i = KEY_A; i <= KEY_L; i++) {
if (libinput_device_keyboard_has_key(device, i) == 0) {
return false;
}
}
for (uint i = KEY_Z; i <= KEY_M; i++) {
if (libinput_device_keyboard_has_key(device, i) == 0) {
return false;
}
}
return true;
}
QVector<Device*> Device::s_devices;
Device *Device::getDevice(libinput_device *native)
{
auto it = std::find_if(s_devices.constBegin(), s_devices.constEnd(),
[native] (const Device *d) {
return d->device() == native;
}
);
if (it != s_devices.constEnd()) {
return *it;
}
return nullptr;
}
enum class ConfigKey {
Enabled,
LeftHanded,
DisableWhileTyping,
PointerAcceleration,
PointerAccelerationProfile,
TapToClick,
LmrTapButtonMap,
TapAndDrag,
TapDragLock,
MiddleButtonEmulation,
NaturalScroll,
ScrollMethod,
ScrollButton
};
struct ConfigData {
explicit ConfigData(QByteArray _key, void (Device::*_setter)(bool), bool (Device::*_defaultValue)() const = nullptr)
: key(_key)
{ booleanSetter.setter = _setter; booleanSetter.defaultValue = _defaultValue; }
explicit ConfigData(QByteArray _key, void (Device::*_setter)(quint32), quint32 (Device::*_defaultValue)() const = nullptr)
: key(_key)
{ quint32Setter.setter = _setter; quint32Setter.defaultValue = _defaultValue; }
explicit ConfigData(QByteArray _key, void (Device::*_setter)(QString), QString (Device::*_defaultValue)() const = nullptr)
: key(_key)
{ stringSetter.setter = _setter; stringSetter.defaultValue = _defaultValue; }
QByteArray key;
struct {
void (Device::*setter)(bool) = nullptr;
bool (Device::*defaultValue)() const;
} booleanSetter;
struct {
void (Device::*setter)(quint32) = nullptr;
quint32 (Device::*defaultValue)() const;
} quint32Setter;
struct {
void (Device::*setter)(QString) = nullptr;
QString (Device::*defaultValue)() const;
} stringSetter;
};
static const QMap<ConfigKey, ConfigData> s_configData {
{ConfigKey::Enabled, ConfigData(QByteArrayLiteral("Enabled"), &Device::setEnabled)},
{ConfigKey::LeftHanded, ConfigData(QByteArrayLiteral("LeftHanded"), &Device::setLeftHanded, &Device::leftHandedEnabledByDefault)},
{ConfigKey::DisableWhileTyping, ConfigData(QByteArrayLiteral("DisableWhileTyping"), &Device::setDisableWhileTyping, &Device::disableWhileTypingEnabledByDefault)},
{ConfigKey::PointerAcceleration, ConfigData(QByteArrayLiteral("PointerAcceleration"), &Device::setPointerAccelerationFromString, &Device::defaultPointerAccelerationToString)},
{ConfigKey::PointerAccelerationProfile, ConfigData(QByteArrayLiteral("PointerAccelerationProfile"), &Device::setPointerAccelerationProfileFromInt, &Device::defaultPointerAccelerationProfileToInt)},
{ConfigKey::TapToClick, ConfigData(QByteArrayLiteral("TapToClick"), &Device::setTapToClick, &Device::tapToClickEnabledByDefault)},
{ConfigKey::TapAndDrag, ConfigData(QByteArrayLiteral("TapAndDrag"), &Device::setTapAndDrag, &Device::tapAndDragEnabledByDefault)},
{ConfigKey::TapDragLock, ConfigData(QByteArrayLiteral("TapDragLock"), &Device::setTapDragLock, &Device::tapDragLockEnabledByDefault)},
{ConfigKey::MiddleButtonEmulation, ConfigData(QByteArrayLiteral("MiddleButtonEmulation"), &Device::setMiddleEmulation, &Device::middleEmulationEnabledByDefault)},
{ConfigKey::LmrTapButtonMap, ConfigData(QByteArrayLiteral("LmrTapButtonMap"), &Device::setLmrTapButtonMap, &Device::lmrTapButtonMapEnabledByDefault)},
{ConfigKey::NaturalScroll, ConfigData(QByteArrayLiteral("NaturalScroll"), &Device::setNaturalScroll, &Device::naturalScrollEnabledByDefault)},
{ConfigKey::ScrollMethod, ConfigData(QByteArrayLiteral("ScrollMethod"), &Device::activateScrollMethodFromInt, &Device::defaultScrollMethodToInt)},
{ConfigKey::ScrollButton, ConfigData(QByteArrayLiteral("ScrollButton"), &Device::setScrollButton, &Device::defaultScrollButton)}
};
namespace {
QMatrix4x4 defaultCalibrationMatrix(libinput_device *device)
{
float matrix[6];
const int ret = libinput_device_config_calibration_get_default_matrix(device, matrix);
if (ret == 0) {
return QMatrix4x4();
}
return QMatrix4x4{
matrix[0], matrix[1], matrix[2], 0.0f,
matrix[3], matrix[4], matrix[5], 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
}
}
Device::Device(libinput_device *device, QObject *parent)
: QObject(parent)
, m_device(device)
, m_keyboard(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_KEYBOARD))
, m_pointer(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_POINTER))
, m_touch(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_TOUCH))
, m_tabletTool(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_TABLET_TOOL))
#if 0
// next libinput version
, m_tabletPad(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_TABLET_PAD))
#else
, m_tabletPad(false)
#endif
, m_supportsGesture(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_GESTURE))
, m_switch(libinput_device_has_capability(m_device, LIBINPUT_DEVICE_CAP_SWITCH))
, m_lidSwitch(m_switch ? libinput_device_switch_has_switch(m_device, LIBINPUT_SWITCH_LID) : false)
, m_tabletSwitch(m_switch ? libinput_device_switch_has_switch(m_device, LIBINPUT_SWITCH_TABLET_MODE) : false)
, m_name(QString::fromLocal8Bit(libinput_device_get_name(m_device)))
, m_sysName(QString::fromLocal8Bit(libinput_device_get_sysname(m_device)))
, m_outputName(QString::fromLocal8Bit(libinput_device_get_output_name(m_device)))
, m_product(libinput_device_get_id_product(m_device))
, m_vendor(libinput_device_get_id_vendor(m_device))
, m_tapFingerCount(libinput_device_config_tap_get_finger_count(m_device))
, m_defaultTapButtonMap(libinput_device_config_tap_get_default_button_map(m_device))
, m_tapButtonMap(libinput_device_config_tap_get_button_map(m_device))
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, m_tapToClickEnabledByDefault(libinput_device_config_tap_get_default_enabled(m_device) == LIBINPUT_CONFIG_TAP_ENABLED)
, m_tapToClick(libinput_device_config_tap_get_enabled(m_device))
, m_tapAndDragEnabledByDefault(libinput_device_config_tap_get_default_drag_enabled(m_device))
, m_tapAndDrag(libinput_device_config_tap_get_drag_enabled(m_device))
, m_tapDragLockEnabledByDefault(libinput_device_config_tap_get_default_drag_lock_enabled(m_device))
, m_tapDragLock(libinput_device_config_tap_get_drag_lock_enabled(m_device))
, m_supportsDisableWhileTyping(libinput_device_config_dwt_is_available(m_device))
, m_supportsPointerAcceleration(libinput_device_config_accel_is_available(m_device))
, m_supportsLeftHanded(libinput_device_config_left_handed_is_available(m_device))
, m_supportsCalibrationMatrix(libinput_device_config_calibration_has_matrix(m_device))
, m_supportsDisableEvents(libinput_device_config_send_events_get_modes(m_device) & LIBINPUT_CONFIG_SEND_EVENTS_DISABLED)
, m_supportsDisableEventsOnExternalMouse(libinput_device_config_send_events_get_modes(m_device) & LIBINPUT_CONFIG_SEND_EVENTS_DISABLED_ON_EXTERNAL_MOUSE)
, m_supportsMiddleEmulation(libinput_device_config_middle_emulation_is_available(m_device))
, m_supportsNaturalScroll(libinput_device_config_scroll_has_natural_scroll(m_device))
, m_supportedScrollMethods(libinput_device_config_scroll_get_methods(m_device))
, m_leftHandedEnabledByDefault(libinput_device_config_left_handed_get_default(m_device))
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, m_middleEmulationEnabledByDefault(libinput_device_config_middle_emulation_get_default_enabled(m_device) == LIBINPUT_CONFIG_MIDDLE_EMULATION_ENABLED)
, m_naturalScrollEnabledByDefault(libinput_device_config_scroll_get_default_natural_scroll_enabled(m_device))
, m_defaultScrollMethod(libinput_device_config_scroll_get_default_method(m_device))
, m_defaultScrollButton(libinput_device_config_scroll_get_default_button(m_device))
, m_disableWhileTypingEnabledByDefault(libinput_device_config_dwt_get_default_enabled(m_device))
, m_disableWhileTyping(m_supportsDisableWhileTyping ? libinput_device_config_dwt_get_enabled(m_device) == LIBINPUT_CONFIG_DWT_ENABLED : false)
, m_middleEmulation(libinput_device_config_middle_emulation_get_enabled(m_device) == LIBINPUT_CONFIG_MIDDLE_EMULATION_ENABLED)
, m_leftHanded(m_supportsLeftHanded ? libinput_device_config_left_handed_get(m_device) : false)
, m_naturalScroll(m_supportsNaturalScroll ? libinput_device_config_scroll_get_natural_scroll_enabled(m_device) : false)
, m_scrollMethod(libinput_device_config_scroll_get_method(m_device))
, m_scrollButton(libinput_device_config_scroll_get_button(m_device))
, m_defaultPointerAcceleration(libinput_device_config_accel_get_default_speed(m_device))
, m_pointerAcceleration(libinput_device_config_accel_get_speed(m_device))
, m_supportedPointerAccelerationProfiles(libinput_device_config_accel_get_profiles(m_device))
, m_defaultPointerAccelerationProfile(libinput_device_config_accel_get_default_profile(m_device))
, m_pointerAccelerationProfile(libinput_device_config_accel_get_profile(m_device))
, m_enabled(m_supportsDisableEvents ? libinput_device_config_send_events_get_mode(m_device) == LIBINPUT_CONFIG_SEND_EVENTS_ENABLED : true)
, m_config()
, m_defaultCalibrationMatrix(m_supportsCalibrationMatrix ? defaultCalibrationMatrix(m_device) : QMatrix4x4{})
{
libinput_device_ref(m_device);
qreal width = 0;
qreal height = 0;
if (libinput_device_get_size(m_device, &width, &height) == 0) {
m_size = QSizeF(width, height);
}
if (m_pointer) {
if (libinput_device_pointer_has_button(m_device, BTN_LEFT) == 1) {
m_supportedButtons |= Qt::LeftButton;
}
if (libinput_device_pointer_has_button(m_device, BTN_MIDDLE) == 1) {
m_supportedButtons |= Qt::MiddleButton;
}
if (libinput_device_pointer_has_button(m_device, BTN_RIGHT) == 1) {
m_supportedButtons |= Qt::RightButton;
}
if (libinput_device_pointer_has_button(m_device, BTN_SIDE) == 1) {
m_supportedButtons |= Qt::ExtraButton1;
}
if (libinput_device_pointer_has_button(m_device, BTN_EXTRA) == 1) {
m_supportedButtons |= Qt::ExtraButton2;
}
if (libinput_device_pointer_has_button(m_device, BTN_BACK) == 1) {
m_supportedButtons |= Qt::BackButton;
}
if (libinput_device_pointer_has_button(m_device, BTN_FORWARD) == 1) {
m_supportedButtons |= Qt::ForwardButton;
}
if (libinput_device_pointer_has_button(m_device, BTN_TASK) == 1) {
m_supportedButtons |= Qt::TaskButton;
}
}
if (m_keyboard) {
m_alphaNumericKeyboard = checkAlphaNumericKeyboard(m_device);
}
s_devices << this;
QDBusConnection::sessionBus().registerObject(QStringLiteral("/org/kde/KWin/InputDevice/") + m_sysName,
QStringLiteral("org.kde.KWin.InputDevice"),
this,
QDBusConnection::ExportAllProperties
);
}
Device::~Device()
{
s_devices.removeOne(this);
QDBusConnection::sessionBus().unregisterObject(QStringLiteral("/org/kde/KWin/InputDevice/") + m_sysName);
libinput_device_unref(m_device);
}
template <typename T>
void Device::writeEntry(const ConfigKey &key, const T &value)
{
if (!m_config.isValid()) {
return;
}
if (m_loading) {
return;
}
auto it = s_configData.find(key);
Q_ASSERT(it != s_configData.end());
m_config.writeEntry(it.value().key.constData(), value);
m_config.sync();
}
template <typename T, typename Setter>
void Device::readEntry(const QByteArray &key, const Setter &s, const T &defaultValue)
{
if (!s.setter) {
return;
}
(this->*(s.setter))(m_config.readEntry(key.constData(), s.defaultValue ? (this->*(s.defaultValue))() : defaultValue));
}
void Device::loadConfiguration()
{
if (!m_config.isValid()) {
return;
}
m_loading = true;
for (auto it = s_configData.begin(), end = s_configData.end(); it != end; ++it) {
const auto key = it.value().key;
if (!m_config.hasKey(key.constData())) {
continue;
}
readEntry(key, it.value().booleanSetter, true);
readEntry(key, it.value().quint32Setter, 0);
readEntry(key, it.value().stringSetter, "");
};
m_loading = false;
}
void Device::setPointerAcceleration(qreal acceleration)
{
if (!m_supportsPointerAcceleration) {
return;
}
acceleration = qBound(-1.0, acceleration, 1.0);
if (libinput_device_config_accel_set_speed(m_device, acceleration) == LIBINPUT_CONFIG_STATUS_SUCCESS) {
if (m_pointerAcceleration != acceleration) {
m_pointerAcceleration = acceleration;
emit pointerAccelerationChanged();
writeEntry(ConfigKey::PointerAcceleration, QString::number(acceleration, 'f', 3));
}
}
}
void Device::setScrollButton(quint32 button)
{
if (!(m_supportedScrollMethods & LIBINPUT_CONFIG_SCROLL_ON_BUTTON_DOWN)) {
return;
}
if (libinput_device_config_scroll_set_button(m_device, button) == LIBINPUT_CONFIG_STATUS_SUCCESS) {
if (m_scrollButton != button) {
m_scrollButton = button;
writeEntry(ConfigKey::ScrollButton, m_scrollButton);
emit scrollButtonChanged();
}
}
}
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void Device::setPointerAccelerationProfile(bool set, enum libinput_config_accel_profile profile)
{
if (!(m_supportedPointerAccelerationProfiles & profile)) {
return;
}
if (!set) {
profile = (profile == LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT) ? LIBINPUT_CONFIG_ACCEL_PROFILE_ADAPTIVE : LIBINPUT_CONFIG_ACCEL_PROFILE_FLAT;
if (!(m_supportedPointerAccelerationProfiles & profile)) {
return;
}
}
if (libinput_device_config_accel_set_profile(m_device, profile) == LIBINPUT_CONFIG_STATUS_SUCCESS) {
if (m_pointerAccelerationProfile != profile) {
m_pointerAccelerationProfile = profile;
emit pointerAccelerationProfileChanged();
writeEntry(ConfigKey::PointerAccelerationProfile, (quint32) profile);
}
}
}
void Device::setScrollMethod(bool set, enum libinput_config_scroll_method method)
{
if (!(m_supportedScrollMethods & method)) {
return;
}
bool isCurrent = m_scrollMethod == method;
if (!set) {
if (isCurrent) {
method = LIBINPUT_CONFIG_SCROLL_NO_SCROLL;
isCurrent = false;
} else {
return;
}
}
if (libinput_device_config_scroll_set_method(m_device, method) == LIBINPUT_CONFIG_STATUS_SUCCESS) {
if (!isCurrent) {
m_scrollMethod = method;
emit scrollMethodChanged();
writeEntry(ConfigKey::ScrollMethod, (quint32) method);
}
}
}
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void Device::setLmrTapButtonMap(bool set)
{
enum libinput_config_tap_button_map map = set ? LIBINPUT_CONFIG_TAP_MAP_LMR : LIBINPUT_CONFIG_TAP_MAP_LRM;
if (m_tapFingerCount < 2) {
return;
}
if (!set) {
map = LIBINPUT_CONFIG_TAP_MAP_LRM;
}
if (libinput_device_config_tap_set_button_map(m_device, map) == LIBINPUT_CONFIG_STATUS_SUCCESS) {
if (m_tapButtonMap != map) {
m_tapButtonMap = map;
writeEntry(ConfigKey::LmrTapButtonMap, set);
emit tapButtonMapChanged();
}
}
}
#define CONFIG(method, condition, function, variable, key) \
void Device::method(bool set) \
{ \
if (condition) { \
return; \
} \
if (libinput_device_config_##function(m_device, set) == LIBINPUT_CONFIG_STATUS_SUCCESS) { \
if (m_##variable != set) { \
m_##variable = set; \
writeEntry(ConfigKey::key, m_##variable); \
emit variable##Changed(); \
}\
} \
}
CONFIG(setLeftHanded, !m_supportsLeftHanded, left_handed_set, leftHanded, LeftHanded)
CONFIG(setNaturalScroll, !m_supportsNaturalScroll, scroll_set_natural_scroll_enabled, naturalScroll, NaturalScroll)
#undef CONFIG
#define CONFIG(method, condition, function, enum, variable, key) \
void Device::method(bool set) \
{ \
if (condition) { \
return; \
} \
if (libinput_device_config_##function(m_device, set ? LIBINPUT_CONFIG_##enum##_ENABLED : LIBINPUT_CONFIG_##enum##_DISABLED) == LIBINPUT_CONFIG_STATUS_SUCCESS) { \
if (m_##variable != set) { \
m_##variable = set; \
writeEntry(ConfigKey::key, m_##variable); \
emit variable##Changed(); \
}\
} \
}
CONFIG(setEnabled, !m_supportsDisableEvents, send_events_set_mode, SEND_EVENTS, enabled, Enabled)
CONFIG(setDisableWhileTyping, !m_supportsDisableWhileTyping, dwt_set_enabled, DWT, disableWhileTyping, DisableWhileTyping)
CONFIG(setTapToClick, m_tapFingerCount == 0, tap_set_enabled, TAP, tapToClick, TapToClick)
CONFIG(setTapAndDrag, false, tap_set_drag_enabled, DRAG, tapAndDrag, TapAndDrag)
CONFIG(setTapDragLock, false, tap_set_drag_lock_enabled, DRAG_LOCK, tapDragLock, TapDragLock)
CONFIG(setMiddleEmulation, m_supportsMiddleEmulation == false, middle_emulation_set_enabled, MIDDLE_EMULATION, middleEmulation, MiddleButtonEmulation)
#undef CONFIG
void Device::setOrientation(Qt::ScreenOrientation orientation)
{
if (!m_supportsCalibrationMatrix) {
return;
}
// 90 deg cw:
static const QMatrix4x4 portraitMatrix{
0.0f, -1.0f, 1.0f, 0.0f,
1.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
// 180 deg cw:
static const QMatrix4x4 invertedLandscapeMatrix{
-1.0f, 0.0f, 1.0f, 0.0f,
0.0f, -1.0f, 1.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
// 270 deg cw
static const QMatrix4x4 invertedPortraitMatrix{
0.0f, 1.0f, 0.0f, 0.0f,
-1.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 1.0f, 0.0f,
0.0f, 0.0f, 0.0f, 1.0f
};
QMatrix4x4 matrix;
switch (orientation) {
case Qt::PortraitOrientation:
matrix = portraitMatrix;
break;
case Qt::InvertedLandscapeOrientation:
matrix = invertedLandscapeMatrix;
break;
case Qt::InvertedPortraitOrientation:
matrix = invertedPortraitMatrix;
break;
case Qt::PrimaryOrientation:
case Qt::LandscapeOrientation:
default:
break;
}
const auto combined = m_defaultCalibrationMatrix * matrix;
const auto columnOrder = combined.constData();
float m[6] = {
columnOrder[0], columnOrder[4], columnOrder[8],
columnOrder[1], columnOrder[5], columnOrder[9]
};
libinput_device_config_calibration_set_matrix(m_device, m);
}
}
}