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| |
| #include "qevdevtabletmanager_p.h" |
| #include "qevdevtablethandler_p.h" |
| |
| #include <QtInputSupport/private/qevdevutil_p.h> |
| |
| #include <QStringList> |
| #include <QGuiApplication> |
| #include <QLoggingCategory> |
| #include <QtDeviceDiscoverySupport/private/qdevicediscovery_p.h> |
| #include <private/qguiapplication_p.h> |
| #include <private/qinputdevicemanager_p_p.h> |
| #include <private/qmemory_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| Q_DECLARE_LOGGING_CATEGORY(qLcEvdevTablet) |
| |
| QEvdevTabletManager::QEvdevTabletManager(const QString &key, const QString &specification, QObject *parent) |
| : QObject(parent) |
| { |
| Q_UNUSED(key); |
| |
| if (qEnvironmentVariableIsSet("QT_QPA_EVDEV_DEBUG")) |
| const_cast<QLoggingCategory &>(qLcEvdevTablet()).setEnabled(QtDebugMsg, true); |
| |
| QString spec = QString::fromLocal8Bit(qgetenv("QT_QPA_EVDEV_TABLET_PARAMETERS")); |
| |
| if (spec.isEmpty()) |
| spec = specification; |
| |
| auto parsed = QEvdevUtil::parseSpecification(spec); |
| m_spec = std::move(parsed.spec); |
| |
| for (const QString &device : qAsConst(parsed.devices)) |
| addDevice(device); |
| |
| // when no devices specified, use device discovery to scan and monitor |
| if (parsed.devices.isEmpty()) { |
| qCDebug(qLcEvdevTablet, "evdevtablet: Using device discovery"); |
| if (auto deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_Tablet, this)) { |
| const QStringList devices = deviceDiscovery->scanConnectedDevices(); |
| for (const QString &device : devices) |
| addDevice(device); |
| |
| connect(deviceDiscovery, &QDeviceDiscovery::deviceDetected, |
| this, &QEvdevTabletManager::addDevice); |
| connect(deviceDiscovery, &QDeviceDiscovery::deviceRemoved, |
| this, &QEvdevTabletManager::removeDevice); |
| } |
| } |
| } |
| |
| QEvdevTabletManager::~QEvdevTabletManager() |
| { |
| } |
| |
| void QEvdevTabletManager::addDevice(const QString &deviceNode) |
| { |
| qCDebug(qLcEvdevTablet, "Adding device at %ls", qUtf16Printable(deviceNode)); |
| auto handler = qt_make_unique<QEvdevTabletHandlerThread>(deviceNode, m_spec); |
| if (handler) { |
| m_activeDevices.add(deviceNode, std::move(handler)); |
| updateDeviceCount(); |
| } else { |
| qWarning("evdevtablet: Failed to open tablet device %ls", qUtf16Printable(deviceNode)); |
| } |
| } |
| |
| void QEvdevTabletManager::removeDevice(const QString &deviceNode) |
| { |
| if (m_activeDevices.remove(deviceNode)) { |
| qCDebug(qLcEvdevTablet, "Removing device at %ls", qUtf16Printable(deviceNode)); |
| updateDeviceCount(); |
| } |
| } |
| |
| void QEvdevTabletManager::updateDeviceCount() |
| { |
| QInputDeviceManagerPrivate::get(QGuiApplicationPrivate::inputDeviceManager())->setDeviceCount( |
| QInputDeviceManager::DeviceTypeTablet, m_activeDevices.count()); |
| } |
| |
| QT_END_NAMESPACE |