Add QHolsterSensor

This adds a new QHolsterSensor plus the assorted reading and filter
classes, as well as a QML API.

Also implement the Blackberry backend for it.

Change-Id: I42e76c21ee74a39a65629e7ab6d9a18f23eae4d4
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>

14 files changed, 693 insertions, 0 deletions

diff --git a/src/imports/sensors/plugins.qmltypes b/src/imports/sensors/plugins.qmltypes
index 94db26d0..541384a2 100644
--- a/src/imports/sensors/plugins.qmltypes
+++ b/src/imports/sensors/plugins.qmltypes
@@ -70,6 +70,17 @@ Module {
         Property { name: "z"; type: "double"; isReadonly: true }
     }
     Component {
+        name: "QmlHolsterReading"
+        prototype: "QmlSensorReading"
+        exports: ["HolsterReading 5.1"]
+        Property { name: "holstered"; type: "bool"; isReadonly: true }
+    }
+    Component {
+        name: "QmlHolsterSensor"
+        prototype: "QmlSensor"
+        exports: ["HolsterSensor 5.1"]
+    }
+    Component {
         name: "QmlIRProximitySensor"
         prototype: "QmlSensor"
         exports: ["IRProximitySensor 5.0", "IRProximitySensor 5.1"]
diff --git a/src/imports/sensors/qmlholstersensor.cpp b/src/imports/sensors/qmlholstersensor.cpp
new file mode 100644
index 00000000..a1eae05b
--- /dev/null
+++ b/src/imports/sensors/qmlholstersensor.cpp
@@ -0,0 +1,133 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "qmlholstersensor.h"
+#include <QHolsterSensor>
+
+/*!
+    \qmltype HolsterSensor
+    \instantiates QmlHolsterSensor
+    \ingroup qml-sensors_type
+    \inqmlmodule QtSensors 5.0
+    \since QtSensors 5.1
+    \inherits Sensor
+    \brief The HolsterSensor element reports on whether a device is holstered.
+
+    The HolsterSensor element reports on whether a device is holstered.
+
+    This element wraps the QHolsterSensor class. Please see the documentation for
+    QHolsterSensor for details.
+
+    \sa HolsterReading
+*/
+
+QmlHolsterSensor::QmlHolsterSensor(QObject *parent)
+    : QmlSensor(parent)
+    , m_sensor(new QHolsterSensor(this))
+{
+}
+
+QmlHolsterSensor::~QmlHolsterSensor()
+{
+}
+
+QmlSensorReading *QmlHolsterSensor::createReading() const
+{
+    return new QmlHolsterReading(m_sensor);
+}
+
+QSensor *QmlHolsterSensor::sensor() const
+{
+    return m_sensor;
+}
+
+/*!
+    \qmltype HolsterReading
+    \instantiates QmlHolsterReading
+    \ingroup qml-sensors_reading
+    \inqmlmodule QtSensors 5.0
+    \since QtSensors 5.1
+    \inherits SensorReading
+    \brief The HolsterReading element holds the most recent HolsterSensor reading.
+
+    The HolsterReading element holds the most recent HolsterSensor reading.
+
+    This element wraps the QHolsterReading class. Please see the documentation for
+    QHolsterReading for details.
+
+    This element cannot be directly created.
+*/
+
+QmlHolsterReading::QmlHolsterReading(QHolsterSensor *sensor)
+    : QmlSensorReading(sensor)
+    , m_sensor(sensor)
+    , m_holstered(false)
+{
+}
+
+QmlHolsterReading::~QmlHolsterReading()
+{
+}
+
+/*!
+    \qmlproperty qreal HolsterReading::holstered
+    This property holds whether the device is holstered.
+
+    Please see QHolsterReading::holstered for information about this property.
+*/
+
+bool QmlHolsterReading::holstered() const
+{
+    return m_holstered;
+}
+
+QSensorReading *QmlHolsterReading::reading() const
+{
+    return m_sensor->reading();
+}
+
+void QmlHolsterReading::readingUpdate()
+{
+    qreal holstered = m_sensor->reading()->holstered();
+    if (m_holstered != holstered) {
+        m_holstered = holstered;
+        Q_EMIT holsteredChanged();
+    }
+}
diff --git a/src/imports/sensors/qmlholstersensor.h b/src/imports/sensors/qmlholstersensor.h
new file mode 100644
index 00000000..95c7bfaf
--- /dev/null
+++ b/src/imports/sensors/qmlholstersensor.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QMLHOLSTERSENSOR_H
+#define QMLHOLSTERSENSOR_H
+
+#include "qmlsensor.h"
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+class QHolsterSensor;
+
+class QmlHolsterSensor : public QmlSensor
+{
+    Q_OBJECT
+public:
+    explicit QmlHolsterSensor(QObject *parent = 0);
+    ~QmlHolsterSensor();
+
+private:
+    QSensor *sensor() const Q_DECL_OVERRIDE;
+    QmlSensorReading *createReading() const Q_DECL_OVERRIDE;
+
+    QHolsterSensor *m_sensor;
+};
+
+class QmlHolsterReading : public QmlSensorReading
+{
+    Q_OBJECT
+    Q_PROPERTY(bool holstered READ holstered NOTIFY holsteredChanged)
+public:
+    explicit QmlHolsterReading(QHolsterSensor *sensor);
+    ~QmlHolsterReading();
+
+    bool holstered() const;
+
+Q_SIGNALS:
+    void holsteredChanged();
+
+private:
+    QSensorReading *reading() const Q_DECL_OVERRIDE;
+    void readingUpdate() Q_DECL_OVERRIDE;
+
+    QHolsterSensor *m_sensor;
+    bool m_holstered;
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+#endif
diff --git a/src/imports/sensors/sensors.cpp b/src/imports/sensors/sensors.cpp
index 3f774313..52b436d6 100644
--- a/src/imports/sensors/sensors.cpp
+++ b/src/imports/sensors/sensors.cpp
@@ -62,6 +62,7 @@
 #include "qmlambientlightsensor.h"
 #include "qmlcompass.h"
 #include "qmlgyroscope.h"
+#include "qmlholstersensor.h"
 #include "qmlirproximitysensor.h"
 #include "qmllightsensor.h"
 #include "qmlmagnetometer.h"
@@ -143,6 +144,8 @@ public:
         qmlRegisterUncreatableType<QmlCompassReading           >(package, major, minor, "CompassReading",       QLatin1String("Cannot create CompassReading"));
         qmlRegisterType           <QmlGyroscope                >(package, major, minor, "Gyroscope");
         qmlRegisterUncreatableType<QmlGyroscopeReading         >(package, major, minor, "GyroscopeReading",     QLatin1String("Cannot create GyroscopeReading"));
+        qmlRegisterType           <QmlHolsterSensor            >(package, major, minor, "HolsterSensor");
+        qmlRegisterUncreatableType<QmlHolsterReading           >(package, major, minor, "HolsterReading",       QLatin1String("Cannot create HolsterReading"));
         qmlRegisterType           <QmlIRProximitySensor        >(package, major, minor, "IRProximitySensor");
         qmlRegisterUncreatableType<QmlIRProximitySensorReading >(package, major, minor, "IRProximityReading",   QLatin1String("Cannot create IRProximityReading"));
         qmlRegisterType           <QmlLightSensor              >(package, major, minor, "LightSensor");
diff --git a/src/imports/sensors/sensors.pro b/src/imports/sensors/sensors.pro
index 82241511..102dd30f 100644
--- a/src/imports/sensors/sensors.pro
+++ b/src/imports/sensors/sensors.pro
@@ -12,6 +12,7 @@ HEADERS += \
     qmlambientlightsensor.h \
     qmlcompass.h \
     qmlgyroscope.h \
+    qmlholstersensor.h \
     qmlirproximitysensor.h \
     qmllightsensor.h \
     qmlmagnetometer.h \
@@ -31,6 +32,7 @@ SOURCES += sensors.cpp \
     qmlambientlightsensor.cpp \
     qmlcompass.cpp \
     qmlgyroscope.cpp \
+    qmlholstersensor.cpp \
     qmlirproximitysensor.cpp \
     qmllightsensor.cpp \
     qmlmagnetometer.cpp \
diff --git a/src/plugins/sensors/blackberry/bbholstersensor.cpp b/src/plugins/sensors/blackberry/bbholstersensor.cpp
new file mode 100644
index 00000000..53888f58
--- /dev/null
+++ b/src/plugins/sensors/blackberry/bbholstersensor.cpp
@@ -0,0 +1,58 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "bbholstersensor.h"
+
+BbHolsterSensor::BbHolsterSensor(QSensor *sensor)
+    : BbSensorBackend<QHolsterReading>(devicePath(), SENSOR_TYPE_HOLSTER, sensor)
+{
+    setDescription(QLatin1String("Whether the device is holstered or not"));
+}
+
+bool BbHolsterSensor::updateReadingFromEvent(const sensor_event_t &event, QHolsterReading *reading)
+{
+    reading->setHolstered(event.holster_s.holstered == 1);
+    return true;
+}
+
+QString BbHolsterSensor::devicePath()
+{
+    return QLatin1String("/dev/sensor/holster");
+}
diff --git a/src/plugins/sensors/blackberry/bbholstersensor.h b/src/plugins/sensors/blackberry/bbholstersensor.h
new file mode 100644
index 00000000..b33b391d
--- /dev/null
+++ b/src/plugins/sensors/blackberry/bbholstersensor.h
@@ -0,0 +1,60 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef BBHOLSTERSENSOR_H
+#define BBHOLSTERSENSOR_H
+
+#include "bbsensorbackend.h"
+#include <qholstersensor.h>
+
+class BbHolsterSensor : public BbSensorBackend<QHolsterReading>
+{
+    Q_OBJECT
+
+public:
+    explicit BbHolsterSensor(QSensor *sensor);
+
+    static QString devicePath();
+
+protected:
+    bool updateReadingFromEvent(const sensor_event_t &event, QHolsterReading *reading) Q_DECL_OVERRIDE;
+};
+
+#endif
diff --git a/src/plugins/sensors/blackberry/blackberry.pro b/src/plugins/sensors/blackberry/blackberry.pro
index 73027c20..902239c4 100644
--- a/src/plugins/sensors/blackberry/blackberry.pro
+++ b/src/plugins/sensors/blackberry/blackberry.pro
@@ -12,6 +12,10 @@ config_bbsensor_compass {
     DEFINES += HAVE_COMPASS_SENSOR
 }
 
+config_bbsensor_holster {
+    DEFINES += HAVE_HOLSTER_SENSOR
+}
+
 HEADERS += bbsensorbackend.h \
     bbaccelerometer.h \
     bbaltimeter.h \
@@ -47,4 +51,9 @@ SOURCES += bbsensorbackend.cpp \
     bbutil.cpp \
     main.cpp
 
+config_bbsensor_holster {
+    HEADERS += bbholstersensor.h
+    SOURCES += bbholstersensor.cpp
+}
+
 OTHER_FILES = plugin.json
diff --git a/src/plugins/sensors/blackberry/main.cpp b/src/plugins/sensors/blackberry/main.cpp
index 7b4180a9..91efe4b0 100644
--- a/src/plugins/sensors/blackberry/main.cpp
+++ b/src/plugins/sensors/blackberry/main.cpp
@@ -43,6 +43,9 @@
 #include "bbambientlightsensor.h"
 #include "bbcompass.h"
 #include "bbgyroscope.h"
+#ifdef HAVE_HOLSTER_SENSOR
+#include "bbholstersensor.h"
+#endif
 #include "bbirproximitysensor.h"
 #include "bblightsensor.h"
 #include "bbmagnetometer.h"
@@ -61,6 +64,9 @@ static const char *bbAltitmeterId = "bbAltimeter";
 static const char *bbAmbientLightSensorId = "bbAmbientLightSensor";
 static const char *bbCompassId = "bbCompass";
 static const char *bbGyroscopeId = "bbGyroscope";
+#ifdef HAVE_HOLSTER_SENSOR
+static const char *bbHolsterSensorId = "bbHolsterSensor";
+#endif
 static const char *bbIRProximitySensorId = "bbIRProximitySensor";
 static const char *bbLightSensorId = "bbLightSensor";
 static const char *bbMagnetometerId = "bbMagnetometer";
@@ -89,6 +95,10 @@ public:
             QSensorManager::registerBackend(QCompass::type, bbCompassId, this);
         if (sensorSupported(BbGyroscope::devicePath()))
             QSensorManager::registerBackend(QGyroscope::type, bbGyroscopeId, this);
+#ifdef HAVE_HOLSTER_SENSOR
+        if (sensorSupported(BbHolsterSensor::devicePath()))
+            QSensorManager::registerBackend(QHolsterSensor::type, bbHolsterSensorId, this);
+#endif
         if (sensorSupported(BbIRProximitySensor::devicePath()))
             QSensorManager::registerBackend(QIRProximitySensor::type, bbIRProximitySensorId, this);
         if (sensorSupported(BbLightSensor::devicePath()))
@@ -120,6 +130,10 @@ public:
             backend = new BbCompass(sensor);
         if (sensor->identifier() == bbGyroscopeId)
             backend = new BbGyroscope(sensor);
+#ifdef HAVE_HOLSTER_SENSOR
+        if (sensor->identifier() == bbHolsterSensorId)
+            backend = new BbHolsterSensor(sensor);
+#endif
         if (sensor->identifier() == bbIRProximitySensorId)
             backend = new BbIRProximitySensor(sensor);
         if (sensor->identifier() == bbLightSensorId)
diff --git a/src/sensors/doc/src/compatmap.qdoc b/src/sensors/doc/src/compatmap.qdoc
index 065ff79e..18724520 100644
--- a/src/sensors/doc/src/compatmap.qdoc
+++ b/src/sensors/doc/src/compatmap.qdoc
@@ -82,6 +82,12 @@
     <td bgcolor="gray"></td>
     </tr>
     <tr>
+    <td nowrap="nowrap">Holster Sensor</td>
+    <td bgcolor="green"></td>
+    <td bgcolor="gray"></td>
+    <td bgcolor="gray"></td>
+    </tr>
+    <tr>
     <td nowrap="nowrap">IR Proximity Sensor</td>
     <td bgcolor="green"></td>
     <td bgcolor="gray"></td>
diff --git a/src/sensors/qholstersensor.cpp b/src/sensors/qholstersensor.cpp
new file mode 100644
index 00000000..761910f2
--- /dev/null
+++ b/src/sensors/qholstersensor.cpp
@@ -0,0 +1,148 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include <qholstersensor.h>
+#include "qholstersensor_p.h"
+
+QT_BEGIN_NAMESPACE
+
+IMPLEMENT_READING(QHolsterReading)
+
+/*!
+    \class QHolsterReading
+    \ingroup sensors_reading
+    \inmodule QtSensors
+    \since 5.1
+
+    \brief The QHolsterReading class holds readings from the holster sensor.
+
+    \section2 QHolsterReading Units
+    The holster sensor can detect if a device is holstered or not. A holster is a pocket,
+    similar to a gun holster, specifically made for the device. If the device is inside of this
+    pocket, it is holstered. The holster supports the device in detecting whether the device is
+    holstered or not.
+*/
+
+/*!
+    \property QHolsterReading::holstered
+    \brief A value indicating whether the device is holstered.
+
+    \sa {QHolsterReading Units}
+*/
+
+bool QHolsterReading::holstered() const
+{
+    return d->holstered;
+}
+
+/*!
+    Sets the holstered value to \a holstered.
+*/
+void QHolsterReading::setHolstered(bool holstered)
+{
+    d->holstered = holstered;
+}
+
+// =====================================================================
+
+/*!
+    \class QHolsterFilter
+    \ingroup sensors_filter
+    \inmodule QtSensors
+    \since 5.1
+
+    \brief The QHolsterFilter class is a convenience wrapper around QSensorFilter.
+
+    The only difference is that the filter() method features a pointer to QHolsterReading
+    instead of QSensorReading.
+*/
+
+/*!
+    \fn QHolsterFilter::filter(QHolsterReading *reading)
+
+    Called when \a reading changes. Returns false to prevent the reading from propagating.
+
+    \sa QSensorFilter::filter()
+*/
+
+char const * const QHolsterSensor::type("QHolsterSensor");
+
+/*!
+    \class QHolsterSensor
+    \ingroup sensors_type
+    \inmodule QtSensors
+    \since 5.1
+
+    \brief The QHolsterSensor class is a convenience wrapper around QSensor.
+
+    The only behavioural difference is that this class sets the type properly.
+
+    This class also features a reading() function that returns a QHolsterReading instead of a QSensorReading.
+
+    For details about how the sensor works, see \l QHolsterReading.
+
+    \sa QHolsterReading
+*/
+
+/*!
+    Construct the sensor as a child of \a parent.
+*/
+QHolsterSensor::QHolsterSensor(QObject *parent)
+    : QSensor(QHolsterSensor::type, parent)
+{
+}
+
+/*!
+    Destroy the sensor. Stops the sensor if it has not already been stopped.
+*/
+QHolsterSensor::~QHolsterSensor()
+{
+}
+
+/*!
+    \fn QHolsterSensor::reading() const
+
+    Returns the reading class for this sensor.
+
+    \sa QSensor::reading()
+*/
+
+#include "moc_qholstersensor.cpp"
+QT_END_NAMESPACE
diff --git a/src/sensors/qholstersensor.h b/src/sensors/qholstersensor.h
new file mode 100644
index 00000000..459f49bb
--- /dev/null
+++ b/src/sensors/qholstersensor.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QHOLSTERSENSOR_H
+#define QHOLSTERSENSOR_H
+
+#include <QtSensors/qsensor.h>
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(QtSensors)
+
+class QHolsterReadingPrivate;
+
+class Q_SENSORS_EXPORT QHolsterReading : public QSensorReading
+{
+    Q_OBJECT
+    Q_PROPERTY(bool holstered READ holstered)
+    DECLARE_READING(QHolsterReading)
+public:
+    bool holstered() const;
+    void setHolstered(bool holstered);
+};
+
+class Q_SENSORS_EXPORT QHolsterFilter : public QSensorFilter
+{
+public:
+    virtual bool filter(QHolsterReading *reading) = 0;
+private:
+    bool filter(QSensorReading *reading) Q_DECL_OVERRIDE
+        { return filter(static_cast<QHolsterReading*>(reading)); }
+};
+
+class Q_SENSORS_EXPORT QHolsterSensor : public QSensor
+{
+    Q_OBJECT
+public:
+    explicit QHolsterSensor(QObject *parent = 0);
+    ~QHolsterSensor();
+    QHolsterReading *reading() const { return static_cast<QHolsterReading*>(QSensor::reading()); }
+    static char const * const type;
+
+private:
+    Q_DISABLE_COPY(QHolsterSensor)
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/sensors/qholstersensor_p.h b/src/sensors/qholstersensor_p.h
new file mode 100644
index 00000000..e13ddeff
--- /dev/null
+++ b/src/sensors/qholstersensor_p.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Research In Motion
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the QtSensors module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** 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 Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/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 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia 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.
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#ifndef QHOLSTERSENSOR_P_H
+#define QHOLSTERSENSOR_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+QT_BEGIN_HEADER
+QT_BEGIN_NAMESPACE
+
+class QHolsterReadingPrivate
+{
+public:
+    QHolsterReadingPrivate()
+        : holstered(false)
+    {
+    }
+
+    bool holstered;
+};
+
+QT_END_NAMESPACE
+QT_END_HEADER
+
+#endif
diff --git a/src/sensors/sensors.pro b/src/sensors/sensors.pro
index 6f943aba..f58fb5df 100644
--- a/src/sensors/sensors.pro
+++ b/src/sensors/sensors.pro
@@ -53,6 +53,7 @@ SENSORS=\
     qaccelerometer\
     qambientlightsensor\
     qcompass\
+    qholstersensor\
     qlightsensor\
     qmagnetometer\
     qorientationsensor\