Qt3DInput: add QInputDeviceFactory and QInputDevicePlugin

Change-Id: Ic137060c4ab37fdff46f97066a3f24b763a7d1ac
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

5 files changed, 299 insertions, 2 deletions

diff --git a/src/input/input.pri b/src/input/input.pri
index b730a4d2b..ec2b1b02e 100644
--- a/src/input/input.pri
+++ b/src/input/input.pri
@@ -24,7 +24,9 @@ HEADERS += \
     $$PWD/mouseinput_p.h \
     $$PWD/mouseeventdispatcherjob_p.h \
     $$PWD/mouseeventfilter_p.h \
-    $$PWD/qabstractinputdevice.h
+    $$PWD/qabstractinputdevice.h \
+    $$PWD/qinputdevicefactory_p.h \
+    $$PWD/qinputdeviceplugin.h
 
 SOURCES += \
     $$PWD/cameracontroller.cpp \
@@ -44,6 +46,8 @@ SOURCES += \
     $$PWD/mousecontroller.cpp \
     $$PWD/mouseinput.cpp \
     $$PWD/mouseeventfilter.cpp \
-    $$PWD/mouseeventdispatcherjob.cpp
+    $$PWD/mouseeventdispatcherjob.cpp \
+    $$PWD/qinputdevicefactory.cpp \
+    $$PWD/qinputdeviceplugin.cpp
 
 INCLUDEPATH += $$PWD
diff --git a/src/input/qinputdevicefactory.cpp b/src/input/qinputdevicefactory.cpp
new file mode 100644
index 000000000..e5896b4ff
--- /dev/null
+++ b/src/input/qinputdevicefactory.cpp
@@ -0,0 +1,93 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qinputdevicefactory_p.h"
+#include <Qt3DInput/qabstractinputdevice.h>
+#include <Qt3DInput/qinputdeviceplugin.h>
+#include <QtCore/private/qfactoryloader_p.h>
+#include <QtCore/QCoreApplication>
+#include <QtCore/QDir>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DInput {
+
+#ifndef QT_NO_LIBRARY
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, loader, (QInputDevice_iid, QLatin1String("/inputdevices"), Qt::CaseInsensitive))
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader, (QInputDevice_iid, QLatin1String(""), Qt::CaseInsensitive))
+#endif
+
+QStringList QInputDeviceFactory::keys(const QString &pluginPath)
+{
+#ifndef QT_NO_LIBRARY
+    QStringList list;
+    if (!pluginPath.isEmpty()) {
+        QCoreApplication::addLibraryPath(pluginPath);
+        list = directLoader()->keyMap().values();
+        if (!list.isEmpty()) {
+            const QString postFix = QStringLiteral(" (from ")
+                    + QDir::toNativeSeparators(pluginPath)
+                    + QLatin1Char(')');
+            const QStringList::iterator end = list.end();
+            for (QStringList::iterator it = list.begin(); it != end; ++it)
+                (*it).append(postFix);
+        }
+    }
+    list.append(loader()->keyMap().values());
+    return list;
+#else
+    return QStringList();
+#endif
+}
+
+QAbstractInputDevice *QInputDeviceFactory::create(const QString &name, const QStringList &args, const QString &pluginPath)
+{
+#ifndef QT_NO_LIBRARY
+    if (!pluginPath.isEmpty()) {
+        QCoreApplication::addLibraryPath(pluginPath);
+        if (QAbstractInputDevice *ret = qLoadPlugin1<QAbstractInputDevice, QInputDevicePlugin>(directLoader(), name, args))
+            return ret;
+    }
+    if (QAbstractInputDevice *ret = qLoadPlugin1<QAbstractInputDevice, QInputDevicePlugin>(loader(), name, args))
+        return ret;
+#endif
+    return Q_NULLPTR;
+}
+
+} // Qt3DInput
+
+QT_END_NAMESPACE
+
diff --git a/src/input/qinputdevicefactory_p.h b/src/input/qinputdevicefactory_p.h
new file mode 100644
index 000000000..62eef0d18
--- /dev/null
+++ b/src/input/qinputdevicefactory_p.h
@@ -0,0 +1,71 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3DINPUT_QINPUTDEVICEFACTORY_P_H
+#define QT3DINPUT_QINPUTDEVICEFACTORY_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of other Qt classes.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <Qt3DInput/qt3dinput_global.h>
+#include <QtCore/QStringList>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DInput {
+
+class QAbstractInputDevice;
+
+class QInputDeviceFactory
+{
+public:
+    static QStringList keys(const QString &pluginPath = QString());
+    static QAbstractInputDevice *create(const QString &name, const QStringList &args, const QString &pluginPath = QString());
+};
+
+} // Qt3DRender
+
+QT_END_NAMESPACE
+
+#endif // QT3DINPUT_QINPUTDEVICEFACTORY_P_H
diff --git a/src/input/qinputdeviceplugin.cpp b/src/input/qinputdeviceplugin.cpp
new file mode 100644
index 000000000..7afdb848e
--- /dev/null
+++ b/src/input/qinputdeviceplugin.cpp
@@ -0,0 +1,61 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qinputdeviceplugin.h"
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DInput {
+
+QInputDevicePlugin::QInputDevicePlugin(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QInputDevicePlugin::~QInputDevicePlugin()
+{
+}
+
+QAbstractInputDevice *QInputDevicePlugin::create(const QString &key, const QStringList &paramList)
+{
+    Q_UNUSED(key)
+    Q_UNUSED(paramList)
+    return Q_NULLPTR;
+}
+
+} // Qt3DInput
+
+QT_END_NAMESPACE
diff --git a/src/input/qinputdeviceplugin.h b/src/input/qinputdeviceplugin.h
new file mode 100644
index 000000000..ea73eb312
--- /dev/null
+++ b/src/input/qinputdeviceplugin.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3DINPUT_QINPUTDEVICEPLUGIN_H
+#define QT3DINPUT_QINPUTDEVICEPLUGIN_H
+
+#include <QtCore/QObject>
+#include <QtCore/QtPlugin>
+#include <QtCore/QFactoryInterface>
+
+#include <Qt3DInput/qt3dinput_global.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DInput {
+
+#define QInputDevice_iid "org.qt-project.Qt3DInput.QAbstractInputDevice 5.6"
+
+class QAbstractInputDevice;
+
+class QT3DINPUTSHARED_EXPORT QInputDevicePlugin : public QObject
+{
+    Q_OBJECT
+public:
+    explicit QInputDevicePlugin(QObject *parent = Q_NULLPTR);
+    ~QInputDevicePlugin();
+
+    virtual QAbstractInputDevice *create(const QString &key, const QStringList &paramList);
+};
+
+} // Qt3DInput
+
+QT_END_NAMESPACE
+
+#endif // QT3DINPUT_QINPUTDEVICEPLUGIN_H