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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the plugins module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#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
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