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| |
| #include "qevdevmousemanager_p.h" |
| |
| #include <QtInputSupport/private/qevdevutil_p.h> |
| |
| #include <QStringList> |
| #include <QGuiApplication> |
| #include <QScreen> |
| #include <QLoggingCategory> |
| #include <qpa/qwindowsysteminterface.h> |
| #include <QtDeviceDiscoverySupport/private/qdevicediscovery_p.h> |
| #include <private/qguiapplication_p.h> |
| #include <private/qinputdevicemanager_p_p.h> |
| #include <private/qhighdpiscaling_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_DECLARE_LOGGING_CATEGORY(qLcEvdevMouse) |
| |
| QEvdevMouseManager::QEvdevMouseManager(const QString &key, const QString &specification, QObject *parent) |
| : QObject(parent), m_x(0), m_y(0), m_xoffset(0), m_yoffset(0) |
| { |
| Q_UNUSED(key); |
| |
| QString spec = QString::fromLocal8Bit(qgetenv("QT_QPA_EVDEV_MOUSE_PARAMETERS")); |
| |
| if (spec.isEmpty()) |
| spec = specification; |
| |
| auto parsed = QEvdevUtil::parseSpecification(spec); |
| m_spec = std::move(parsed.spec); |
| |
| for (const QStringRef &arg : qAsConst(parsed.args)) { |
| if (arg.startsWith(QLatin1String("xoffset="))) { |
| m_xoffset = arg.mid(8).toInt(); |
| } else if (arg.startsWith(QLatin1String("yoffset="))) { |
| m_yoffset = arg.mid(8).toInt(); |
| } |
| } |
| |
| // add all mice for devices specified in the argument list |
| for (const QString &device : qAsConst(parsed.devices)) |
| addMouse(device); |
| |
| if (parsed.devices.isEmpty()) { |
| qCDebug(qLcEvdevMouse, "evdevmouse: Using device discovery"); |
| if (auto deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_Mouse | QDeviceDiscovery::Device_Touchpad, this)) { |
| // scan and add already connected keyboards |
| const QStringList devices = deviceDiscovery->scanConnectedDevices(); |
| for (const QString &device : devices) |
| addMouse(device); |
| |
| connect(deviceDiscovery, &QDeviceDiscovery::deviceDetected, |
| this, &QEvdevMouseManager::addMouse); |
| connect(deviceDiscovery, &QDeviceDiscovery::deviceRemoved, |
| this, &QEvdevMouseManager::removeMouse); |
| } |
| } |
| |
| QInputDeviceManager *manager = QGuiApplicationPrivate::inputDeviceManager(); |
| connect(manager, &QInputDeviceManager::cursorPositionChangeRequested, [this](const QPoint &pos) { |
| m_x = pos.x(); |
| m_y = pos.y(); |
| clampPosition(); |
| }); |
| } |
| |
| QEvdevMouseManager::~QEvdevMouseManager() |
| { |
| } |
| |
| void QEvdevMouseManager::clampPosition() |
| { |
| // clamp to screen geometry |
| QScreen *primaryScreen = QGuiApplication::primaryScreen(); |
| QRect g = QHighDpi::toNativePixels(primaryScreen->virtualGeometry(), primaryScreen); |
| if (m_x + m_xoffset < g.left()) |
| m_x = g.left() - m_xoffset; |
| else if (m_x + m_xoffset > g.right()) |
| m_x = g.right() - m_xoffset; |
| |
| if (m_y + m_yoffset < g.top()) |
| m_y = g.top() - m_yoffset; |
| else if (m_y + m_yoffset > g.bottom()) |
| m_y = g.bottom() - m_yoffset; |
| } |
| |
| void QEvdevMouseManager::handleMouseEvent(int x, int y, bool abs, Qt::MouseButtons buttons, |
| Qt::MouseButton button, QEvent::Type type) |
| { |
| // update current absolute coordinates |
| if (!abs) { |
| m_x += x; |
| m_y += y; |
| } else { |
| m_x = x; |
| m_y = y; |
| } |
| |
| clampPosition(); |
| |
| QPoint pos(m_x + m_xoffset, m_y + m_yoffset); |
| // Cannot track the keyboard modifiers ourselves here. Instead, report the |
| // modifiers from the last key event that has been seen by QGuiApplication. |
| QWindowSystemInterface::handleMouseEvent(0, pos, pos, buttons, button, type, QGuiApplicationPrivate::inputDeviceManager()->keyboardModifiers()); |
| } |
| |
| void QEvdevMouseManager::handleWheelEvent(QPoint delta) |
| { |
| QPoint pos(m_x + m_xoffset, m_y + m_yoffset); |
| QWindowSystemInterface::handleWheelEvent(0, pos, pos, QPoint(), delta, QGuiApplicationPrivate::inputDeviceManager()->keyboardModifiers()); |
| } |
| |
| void QEvdevMouseManager::addMouse(const QString &deviceNode) |
| { |
| qCDebug(qLcEvdevMouse, "Adding mouse at %ls", qUtf16Printable(deviceNode)); |
| auto handler = QEvdevMouseHandler::create(deviceNode, m_spec); |
| if (handler) { |
| connect(handler.get(), &QEvdevMouseHandler::handleMouseEvent, |
| this, &QEvdevMouseManager::handleMouseEvent); |
| connect(handler.get(), &QEvdevMouseHandler::handleWheelEvent, |
| this, &QEvdevMouseManager::handleWheelEvent); |
| m_mice.add(deviceNode, std::move(handler)); |
| updateDeviceCount(); |
| } else { |
| qWarning("evdevmouse: Failed to open mouse device %ls", qUtf16Printable(deviceNode)); |
| } |
| } |
| |
| void QEvdevMouseManager::removeMouse(const QString &deviceNode) |
| { |
| if (m_mice.remove(deviceNode)) { |
| qCDebug(qLcEvdevMouse, "Removing mouse at %ls", qUtf16Printable(deviceNode)); |
| updateDeviceCount(); |
| } |
| } |
| |
| void QEvdevMouseManager::updateDeviceCount() |
| { |
| QInputDeviceManagerPrivate::get(QGuiApplicationPrivate::inputDeviceManager())->setDeviceCount( |
| QInputDeviceManager::DeviceTypePointer, m_mice.count()); |
| } |
| |
| QT_END_NAMESPACE |