Start refactoring the input device plugin

The plugin will now create a QInputDeviceIntegration object which can
act as a "mini input aspect" by setting things up and creating jobs
each frame.

This will also (soon) register the frontend QAbstractPhysicalDevice
subclass with a factory on the QInputAspect to allow C++ users to create
the frontend device type.

Change-Id: I709febfe12b5fae7b6157d1192fb8720362c7622
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/src/input/frontend/qinputdeviceintegrationfactory.cpp b/src/input/frontend/qinputdeviceintegrationfactory.cpp
new file mode 100644
index 000000000..1cb0650e9
--- /dev/null
+++ b/src/input/frontend/qinputdeviceintegrationfactory.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 "qinputdeviceintegrationfactory_p.h"
+#include <Qt3DInput/qinputdeviceintegration.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, (QInputDevicePlugin_iid, QLatin1String("/inputdevices"), Qt::CaseInsensitive))
+Q_GLOBAL_STATIC_WITH_ARGS(QFactoryLoader, directLoader, (QInputDevicePlugin_iid, QLatin1String(""), Qt::CaseInsensitive))
+#endif
+
+QStringList QInputDeviceIntegrationFactory::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
+}
+
+QInputDeviceIntegration *QInputDeviceIntegrationFactory::create(const QString &name, const QStringList &args, const QString &pluginPath)
+{
+#ifndef QT_NO_LIBRARY
+    if (!pluginPath.isEmpty()) {
+        QCoreApplication::addLibraryPath(pluginPath);
+        if (QInputDeviceIntegration *ret = qLoadPlugin1<QInputDeviceIntegration, QInputDevicePlugin>(directLoader(), name, args))
+            return ret;
+    }
+    if (QInputDeviceIntegration *ret = qLoadPlugin1<QInputDeviceIntegration, QInputDevicePlugin>(loader(), name, args))
+        return ret;
+#endif
+    return Q_NULLPTR;
+}
+
+} // Qt3DInput
+
+QT_END_NAMESPACE
+