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-rw-r--r--src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp122
1 files changed, 122 insertions, 0 deletions
diff --git a/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp b/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp
new file mode 100644
index 0000000000..98fc83700c
--- /dev/null
+++ b/src/platformsupport/input/evdevtouch/qevdevtouchmanager.cpp
@@ -0,0 +1,122 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the plugins module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL21$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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 2.1 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file. Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** As a special exception, The Qt Company gives you certain additional
+** rights. These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qevdevtouchmanager_p.h"
+#include "qevdevtouchhandler_p.h"
+
+#include <QStringList>
+#include <QGuiApplication>
+#include <QLoggingCategory>
+#include <QtPlatformSupport/private/qdevicediscovery_p.h>
+#include <private/qguiapplication_p.h>
+#include <private/qinputdevicemanager_p_p.h>
+
+QT_BEGIN_NAMESPACE
+
+Q_DECLARE_LOGGING_CATEGORY(qLcEvdevTouch)
+
+QEvdevTouchManager::QEvdevTouchManager(const QString &key, const QString &specification, QObject *parent)
+ : QObject(parent)
+{
+ Q_UNUSED(key);
+
+ if (qEnvironmentVariableIsSet("QT_QPA_EVDEV_DEBUG"))
+ const_cast<QLoggingCategory &>(qLcEvdevTouch()).setEnabled(QtDebugMsg, true);
+
+ QString spec = QString::fromLocal8Bit(qgetenv("QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS"));
+
+ if (spec.isEmpty())
+ spec = specification;
+
+ QStringList args = spec.split(QLatin1Char(':'));
+ QStringList devices;
+
+ foreach (const QString &arg, args) {
+ if (arg.startsWith(QLatin1String("/dev/"))) {
+ devices.append(arg);
+ args.removeAll(arg);
+ }
+ }
+
+ // build new specification without /dev/ elements
+ m_spec = args.join(QLatin1Char(':'));
+
+ foreach (const QString &device, devices)
+ addDevice(device);
+
+ // when no devices specified, use device discovery to scan and monitor
+ if (devices.isEmpty()) {
+ qCDebug(qLcEvdevTouch) << "evdevtouch: Using device discovery";
+ m_deviceDiscovery = QDeviceDiscovery::create(QDeviceDiscovery::Device_Touchpad | QDeviceDiscovery::Device_Touchscreen, this);
+ if (m_deviceDiscovery) {
+ QStringList devices = m_deviceDiscovery->scanConnectedDevices();
+ foreach (const QString &device, devices)
+ addDevice(device);
+ connect(m_deviceDiscovery, SIGNAL(deviceDetected(QString)), this, SLOT(addDevice(QString)));
+ connect(m_deviceDiscovery, SIGNAL(deviceRemoved(QString)), this, SLOT(removeDevice(QString)));
+ }
+ }
+}
+
+QEvdevTouchManager::~QEvdevTouchManager()
+{
+ qDeleteAll(m_activeDevices);
+}
+
+void QEvdevTouchManager::addDevice(const QString &deviceNode)
+{
+ qCDebug(qLcEvdevTouch) << "Adding device at" << deviceNode;
+ QEvdevTouchScreenHandlerThread *handler;
+ handler = new QEvdevTouchScreenHandlerThread(deviceNode, m_spec);
+ if (handler) {
+ m_activeDevices.insert(deviceNode, handler);
+ QInputDeviceManagerPrivate::get(QGuiApplicationPrivate::inputDeviceManager())->setDeviceCount(
+ QInputDeviceManager::DeviceTypeTouch, m_activeDevices.count());
+ } else {
+ qWarning("evdevtouch: Failed to open touch device %s", qPrintable(deviceNode));
+ }
+}
+
+void QEvdevTouchManager::removeDevice(const QString &deviceNode)
+{
+ if (m_activeDevices.contains(deviceNode)) {
+ qCDebug(qLcEvdevTouch) << "Removing device at" << deviceNode;
+ QEvdevTouchScreenHandlerThread *handler = m_activeDevices.value(deviceNode);
+ m_activeDevices.remove(deviceNode);
+ QInputDeviceManagerPrivate::get(QGuiApplicationPrivate::inputDeviceManager())->setDeviceCount(
+ QInputDeviceManager::DeviceTypeTouch, m_activeDevices.count());
+ delete handler;
+ }
+}
+
+QT_END_NAMESPACE