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-rw-r--r--src/plugins/generic/evdevmouse/qevdevmousemanager.cpp138
1 files changed, 138 insertions, 0 deletions
diff --git a/src/plugins/generic/evdevmouse/qevdevmousemanager.cpp b/src/plugins/generic/evdevmouse/qevdevmousemanager.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qevdevmousemanager.h"
+
+#include <QStringList>
+#include <QCoreApplication>
+
+//#define QT_QPA_MOUSEMANAGER_DEBUG
+
+#ifdef QT_QPA_MOUSEMANAGER_DEBUG
+#include <QDebug>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+QEvdevMouseManager::QEvdevMouseManager(const QString &key, const QString &specification)
+{
+ Q_UNUSED(key);
+
+ bool useUDev = true;
+ QStringList args = specification.split(QLatin1Char(':'));
+ QStringList devices;
+
+ foreach (const QString &arg, args) {
+ if (arg.startsWith("udev") && arg.contains("no")) {
+ useUDev = false;
+ } else if (arg.startsWith("/dev/")) {
+ // if device is specified try to use it
+ devices.append(arg);
+ args.removeAll(arg);
+ }
+ }
+
+ // build new specification without /dev/ elements
+ m_spec = args.join(":");
+
+ // add all mice for devices specified in the argument list
+ foreach (const QString &device, devices)
+ addMouse(device);
+
+ if (useUDev) {
+#ifdef QT_QPA_MOUSEMANAGER_DEBUG
+ qWarning() << "Use UDev for device discovery";
+#endif
+
+ m_udeviceHelper = QUDeviceHelper::createUDeviceHelper(QUDeviceHelper::UDev_Mouse | QUDeviceHelper::UDev_Touchpad, this);
+ if (m_udeviceHelper) {
+ // scan and add already connected keyboards
+ QStringList devices = m_udeviceHelper->scanConnectedDevices();
+ foreach (QString device, devices) {
+ addMouse(device);
+ }
+
+ connect(m_udeviceHelper, SIGNAL(deviceDetected(QString,QUDeviceTypes)), this, SLOT(addMouse(QString)));
+ connect(m_udeviceHelper, SIGNAL(deviceRemoved(QString,QUDeviceTypes)), this, SLOT(removeMouse(QString)));
+ }
+ }
+}
+
+QEvdevMouseManager::~QEvdevMouseManager()
+{
+ qDeleteAll(m_mice);
+ m_mice.clear();
+}
+
+void QEvdevMouseManager::addMouse(const QString &deviceNode)
+{
+#ifdef QT_QPA_MOUSEMANAGER_DEBUG
+ qWarning() << "Adding mouse at" << deviceNode;
+#endif
+
+ QString specification = m_spec;
+
+ if (!deviceNode.isEmpty()) {
+ specification.append(":");
+ specification.append(deviceNode);
+ }
+
+ QEvdevMouseHandler *handler;
+ handler = QEvdevMouseHandler::createLinuxInputMouseHandler("EvdevMouse", specification);
+ if (handler)
+ m_mice.insert(deviceNode, handler);
+ else
+ qWarning("Failed to open mouse");
+}
+
+void QEvdevMouseManager::removeMouse(const QString &deviceNode)
+{
+ if (m_mice.contains(deviceNode)) {
+#ifdef QT_QPA_MOUSEMANAGER_DEBUG
+ qWarning() << "Removing mouse at" << deviceNode;
+#endif
+ QEvdevMouseHandler *handler = m_mice.value(deviceNode);
+ m_mice.remove(deviceNode);
+ delete handler;
+ }
+}
+
+QT_END_NAMESPACE