1 files changed, 88 insertions, 0 deletions
diff --git a/src/gui/kernel/qinputdevicemanager.cpp b/src/gui/kernel/qinputdevicemanager.cpp
new file mode 100644
index 0000000000..d0dd8a4e7c
--- /dev/null
+++ b/src/gui/kernel/qinputdevicemanager.cpp
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the QtGui 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 "qinputdevicemanager_p.h"
+#include "qinputdevicemanager_p_p.h"
+
+QT_BEGIN_NAMESPACE
+
+/*!
+  \class QInputDeviceManager
+  \internal
+
+  \brief QInputDeviceManager acts as a communication hub between QtGui and the input handlers.
+
+  On embedded platforms the input handling code is either compiled into the platform
+  plugin or is loaded dynamically as a generic plugin without any interface. The input
+  handler in use may also change between each run (e.g. evdevmouse/keyboard/touch
+  vs. libinput). QWindowSystemInterface is too limiting when Qt (the platform plugin) is
+  acting as a windowing system, and is one way only.
+
+  QInputDeviceManager solves this by providing a global object that is used to communicate
+  from the input handlers to the rest of Qt (e.g. the number of connected mice, which may
+  be important information for the cursor drawing code), and vice-versa (e.g. to indicate
+  to the input handler that a manual cursor position change was requested by the
+  application via QCursor::setPos and thus any internal state has to be updated accordingly).
+*/
+
+QInputDeviceManager::QInputDeviceManager(QObject *parent)
+    : QObject(*new QInputDeviceManagerPrivate, parent)
+{
+}
+
+int QInputDeviceManager::deviceCount(DeviceType type) const
+{
+    Q_D(const QInputDeviceManager);
+    return d->deviceCount(type);
+}
+
+int QInputDeviceManagerPrivate::deviceCount(QInputDeviceManager::DeviceType type) const
+{
+    return m_deviceCount.value(type);
+}
+
+void QInputDeviceManagerPrivate::setDeviceCount(QInputDeviceManager::DeviceType type, int count)
+{
+    Q_Q(QInputDeviceManager);
+    if (m_deviceCount.value(type) != count) {
+        m_deviceCount[type] = count;
+        emit q->deviceListChanged(type);
+    }
+}
+
+void QInputDeviceManager::setCursorPos(const QPoint &pos)
+{
+    emit cursorPositionChangeRequested(pos);
+}
+
+QT_END_NAMESPACE