fix false positive sensor gesture recognition when slam is too close to head

Change-Id: Ic6aa24ca44b6cb61c1592bd8536a092d7ec0fc90
Reviewed-by: Lorn Potter <lorn.potter@nokia.com>

2 files changed, 24 insertions, 3 deletions

diff --git a/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp
index b19973f6..2762e2cd 100644
--- a/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp
+++ b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.cpp
@@ -71,12 +71,20 @@ QString QHoverSensorGestureRecognizer::id() const
 bool QHoverSensorGestureRecognizer::start()
 {
     if (QtSensorGestureSensorHandler::instance()->startSensor(QtSensorGestureSensorHandler::IrProximity)) {
-        active = true;
-        connect(QtSensorGestureSensorHandler::instance(),SIGNAL(irProximityReadingChanged(QIRProximityReading *)),
-                this,SLOT(irProximityReadingChanged(QIRProximityReading *)));
+        if (QtSensorGestureSensorHandler::instance()->startSensor(QtSensorGestureSensorHandler::Orientation)) {
+            active = true;
+            connect(QtSensorGestureSensorHandler::instance(),SIGNAL(irProximityReadingChanged(QIRProximityReading *)),
+                    this,SLOT(irProximityReadingChanged(QIRProximityReading *)));
+            connect(QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading *)),
+                    this,SLOT(orientationReadingChanged(QOrientationReading *)));
+        } else {
+            QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::IrProximity);
+            active = false;
+        }
     } else {
         active = false;
     }
+
     detecting = false;
     detectedHigh = 0;
     initialReflectance = 0;
@@ -87,8 +95,11 @@ bool QHoverSensorGestureRecognizer::start()
 bool QHoverSensorGestureRecognizer::stop()
 {
     QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::IrProximity);
+    QtSensorGestureSensorHandler::instance()->stopSensor(QtSensorGestureSensorHandler::Orientation);
     disconnect(QtSensorGestureSensorHandler::instance(),SIGNAL(irProximityReadingChanged(QIRProximityReading *)),
             this,SLOT(irProximityReadingChanged(QIRProximityReading *)));
+    disconnect(QtSensorGestureSensorHandler::instance(),SIGNAL(orientationReadingChanged(QOrientationReading *)),
+            this,SLOT(orientationReadingChanged(QOrientationReading *)));
     active = false;
     return active;
 }
@@ -98,6 +109,12 @@ bool QHoverSensorGestureRecognizer::isActive()
     return active;
 }
 
+
+void QHoverSensorGestureRecognizer::orientationReadingChanged(QOrientationReading *reading)
+{
+    orientationReading = reading;
+}
+
 void QHoverSensorGestureRecognizer::irProximityReadingChanged(QIRProximityReading *reading)
 {
     reflectance = reading->reflectance();
@@ -157,6 +174,8 @@ void QHoverSensorGestureRecognizer::irProximityReadingChanged(QIRProximityReadin
 
 bool QHoverSensorGestureRecognizer::checkForHovering()
 {
+    if (orientationReading->orientation() != QOrientationReading::FaceUp)
+        return false;
     if ( (reflectance > 0.2 && reflectance < 0.4)
          && (initialReflectance - reflectance) < -0.1)
         return true;
diff --git a/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.h b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.h
index 27b30151..1a6c5dc6 100644
--- a/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.h
+++ b/src/plugins/sensorgestures/qtsensors/qhoversensorgesturerecognizer.h
@@ -68,10 +68,12 @@ Q_SIGNALS:
     void hover();
 
 private slots:
+    void orientationReadingChanged(QOrientationReading *reading);
     void irProximityReadingChanged(QIRProximityReading *reading);
     void timeout();
     void timeout2();
 private:
+    QOrientationReading *orientationReading;
     qreal reflectance;
 
     QTimer *timer2;