From f9672df5ea9872f911eb0011012f829309e11e71 Mon Sep 17 00:00:00 2001
From: Lincoln Ramsay <lincoln.ramsay@nokia.com>
Date: Tue, 20 Dec 2011 11:05:30 +1000
Subject: Implement an API for alwaysOn.

Change-Id: If530fed02979ad9c4608f317b718ee449bb25ddc
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Zsolt Simon <zsolt.simon@nokia.com>
---
 src/sensors/qsensor.cpp            | 17 +++++++++++++++++
 src/sensors/qsensor.h              |  4 ++++
 src/sensors/qsensor_p.h            |  3 +++
 tests/auto/qsensor/tst_qsensor.cpp | 10 ++++++++++
 4 files changed, 34 insertions(+)

diff --git a/src/sensors/qsensor.cpp b/src/sensors/qsensor.cpp
index 39820797..9dc11d19 100644
--- a/src/sensors/qsensor.cpp
+++ b/src/sensors/qsensor.cpp
@@ -340,6 +340,23 @@ bool QSensor::isActive() const
     return d->active;
 }
 
+/*!
+    \property QSensor::alwaysOn
+    \brief a value to indicate if the sensor should remain running when the screen is off.
+
+    Some platforms have a policy of suspending sensors when the screen turns off.
+    Setting this property to true will ensure the sensor continues to run.
+*/
+void QSensor::setAlwaysOn(bool alwaysOn)
+{
+    d->alwaysOn = alwaysOn;
+}
+
+bool QSensor::isAlwaysOn() const
+{
+    return d->alwaysOn;
+}
+
 /*!
     \property QSensor::availableDataRates
     \brief the data rates that the sensor supports.
diff --git a/src/sensors/qsensor.h b/src/sensors/qsensor.h
index aca95ce1..08bb0a7e 100644
--- a/src/sensors/qsensor.h
+++ b/src/sensors/qsensor.h
@@ -89,6 +89,7 @@ class Q_SENSORS_EXPORT QSensor : public QObject
     Q_PROPERTY(int outputRange READ outputRange WRITE setOutputRange)
     Q_PROPERTY(QString description READ description)
     Q_PROPERTY(int error READ error NOTIFY sensorError)
+    Q_PROPERTY(bool alwaysOn READ isAlwaysOn WRITE setAlwaysOn)
 #ifdef Q_QDOC
     Q_PROPERTY(int maxBufferSize)
     Q_PROPERTY(int efficientBufferSize)
@@ -111,6 +112,9 @@ public:
     void setActive(bool active);
     bool isActive() const;
 
+    bool isAlwaysOn() const;
+    void setAlwaysOn(bool alwaysOn);
+
     qrangelist availableDataRates() const;
     int dataRate() const;
     void setDataRate(int rate);
diff --git a/src/sensors/qsensor_p.h b/src/sensors/qsensor_p.h
index e87f10c3..d0876726 100644
--- a/src/sensors/qsensor_p.h
+++ b/src/sensors/qsensor_p.h
@@ -75,6 +75,7 @@ public:
         , filter_reading(0)
         , cache_reading(0)
         , error(0)
+        , alwaysOn(false)
     {
     }
 
@@ -100,6 +101,8 @@ public:
     QSensorReading *cache_reading;
 
     int error;
+
+    bool alwaysOn;
 };
 
 class QSensorReadingPrivate
diff --git a/tests/auto/qsensor/tst_qsensor.cpp b/tests/auto/qsensor/tst_qsensor.cpp
index f378b89f..f56baad5 100644
--- a/tests/auto/qsensor/tst_qsensor.cpp
+++ b/tests/auto/qsensor/tst_qsensor.cpp
@@ -810,6 +810,16 @@ private slots:
         QVERIFY(!sensor.isActive());
     }
 
+    void testAlwaysOn()
+    {
+        TestSensor sensor;
+        QCOMPARE(sensor.isAlwaysOn(), false);
+        sensor.setAlwaysOn(true);
+        QCOMPARE(sensor.isAlwaysOn(), true);
+        sensor.setAlwaysOn(false);
+        QCOMPARE(sensor.isAlwaysOn(), false);
+    }
+
     void testIsRegistered()
     {
         bool expected;
-- 
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