remove obsolete qudevhelper and adopt mouse and touch plugins

The QUDevHelper class is now replaced by QUDeviceHelper class.
All evdev input plugins are using the new udev helper now to enable
hotplugin for keyboard and mouse input.

EvdevTouch plugin still only uses the first detected device by udev,
this cannot be tested on my side, due to the lack of multiple touch input devices.

Change-Id: I01a4cfe1a80000bfb27c67a2f53faf560906b73c
Reviewed-by: Laszlo Agocs <laszlo.p.agocs@nokia.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/src/plugins/generic/evdevmouse/qevdevmousemanager.cpp b/src/plugins/generic/evdevmouse/qevdevmousemanager.cpp
new file mode 100644
index 0000000000..f8e77abe55
--- /dev/null
+++ b/src/plugins/generic/evdevmouse/qevdevmousemanager.cpp
@@ -0,0 +1,138 @@
+/****************************************************************************
+**
+** 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