QtSensors: Expose QSensor::isFeatureSupported to QML

Checking if a specific feature is supported by the backend is now
available from QML.

[ChangeLog][QmlSensor] Add QmlSensor::isFeatureSupported().

Fixes: QTBUG-97273
Change-Id: I0ec71fa51c792afc4b6b6191b85910095d2b87a2
Reviewed-by: Ivan Solovev <ivan.solovev@qt.io>
Reviewed-by: Juha Vuolle <juha.vuolle@qt.io>

4 files changed, 60 insertions, 0 deletions

diff --git a/src/sensorsquick/qmlsensor.cpp b/src/sensorsquick/qmlsensor.cpp
index 1e375415..d507e919 100644
--- a/src/sensorsquick/qmlsensor.cpp
+++ b/src/sensorsquick/qmlsensor.cpp
@@ -277,6 +277,21 @@ QBindable<QmlSensorReading*> QmlSensor::bindableReading() const
 }
 
 /*!
+    \qmlmethod bool Sensor::isFeatureSupported(feature)
+    \since QtSensors 6.7
+    Checks if a specific feature is supported by the backend.
+    Returns \c true if the \a feature is supported, and \c false otherwise.
+    For feature descriptions see \l {QSensor::Feature}.
+
+    Please see QSensor::isFeatureSupported for information.
+*/
+
+bool QmlSensor::isFeatureSupported(Feature feature) const
+{
+    return sensor()->isFeatureSupported(static_cast<QSensor::Feature>(feature));
+}
+
+/*!
     \qmlproperty Sensor::AxesOrientationMode Sensor::axesOrientationMode
     \since QtSensors 5.1
     This property holds the mode that affects how the screen orientation changes reading values.
diff --git a/src/sensorsquick/qmlsensor_p.h b/src/sensorsquick/qmlsensor_p.h
index 6e1460a4..0c0a9527 100644
--- a/src/sensorsquick/qmlsensor_p.h
+++ b/src/sensorsquick/qmlsensor_p.h
@@ -22,6 +22,8 @@
 #include <QQmlParserStatus>
 #include <QtQml/qqml.h>
 #include <QQmlListProperty>
+#include <QtSensors/QSensor>
+
 #include "qmlsensorrange_p.h"
 
 QT_BEGIN_NAMESPACE
@@ -62,6 +64,19 @@ class Q_SENSORSQUICK_PRIVATE_EXPORT QmlSensor : public QObject, public QQmlParse
     QML_UNCREATABLE("Cannot create Sensor")
     QML_ADDED_IN_VERSION(5,0)
 public:
+    // Keep in sync with QSensor::Feature
+    enum Feature {
+        Buffering = QSensor::Buffering,
+        AlwaysOn = QSensor::AlwaysOn,
+        GeoValues = QSensor::GeoValues,
+        FieldOfView = QSensor::FieldOfView,
+        AccelerationMode = QSensor::AccelerationMode,
+        SkipDuplicates = QSensor::SkipDuplicates,
+        AxesOrientation = QSensor::AxesOrientation,
+        PressureSensorTemperature = QSensor::PressureSensorTemperature
+    };
+    Q_ENUM(Feature)
+
     // Keep in sync with QSensor::AxesOrientationMode
     enum AxesOrientationMode {
         FixedOrientation,
@@ -105,6 +120,8 @@ public:
     QmlSensorReading *reading() const;
     QBindable<QmlSensorReading*> bindableReading() const;
 
+    Q_INVOKABLE bool isFeatureSupported(Feature feature) const;
+
     AxesOrientationMode axesOrientationMode() const;
     void setAxesOrientationMode(AxesOrientationMode axesOrientationMode);
 
diff --git a/tests/auto/common/test_backends.h b/tests/auto/common/test_backends.h
index 1aff64e5..95d93e6c 100644
--- a/tests/auto/common/test_backends.h
+++ b/tests/auto/common/test_backends.h
@@ -36,6 +36,7 @@ void set_test_backend_busy(QSensor* sensor, bool busy);
         SensorClass ## _impl(QSensor *sensor);\
         void start() override;\
         void stop() override;\
+        bool isFeatureSupported(QSensor::Feature feature) const override;\
     };\
     class SensorClass ## _testfilter : public FilterClass { bool filter(ReadingClass *) override; };
 
@@ -47,6 +48,11 @@ void set_test_backend_busy(QSensor* sensor, bool busy);
         newReadingAvailable();\
     }\
     void SensorClass ##_impl::stop() {}\
+    bool SensorClass ##_impl::isFeatureSupported(QSensor::Feature feature) const { \
+        if (feature == QSensor::Feature::SkipDuplicates) \
+            return true; \
+        return false; \
+    } \
     bool SensorClass ## _testfilter::filter(ReadingClass *) { return true; }\
     static QSensorBackend *create_ ## SensorClass ## _impl(QSensor *sensor) { return new SensorClass ## _impl(sensor); }\
     static bool registered_ ## SensorClass = registerTestBackend(#SensorClass, create_ ## SensorClass ## _impl);
diff --git a/tests/auto/qml/qml_quick/tst_sensors_basic.qml b/tests/auto/qml/qml_quick/tst_sensors_basic.qml
index 687382ee..38bde570 100644
--- a/tests/auto/qml/qml_quick/tst_sensors_basic.qml
+++ b/tests/auto/qml/qml_quick/tst_sensors_basic.qml
@@ -201,4 +201,26 @@ TestCase {
                     {tag: "IRProximitySensor", initialReading: {reflectance: 0.5}, newReading: {reflectance: 0.6}}
                ];
     }
+
+    function test_SupportedFeatures()
+    {
+        var sensor = Qt.createQmlObject("import QtSensors; Accelerometer \
+                                         {identifier: \"QAccelerometer\"}",
+                                         testCase);
+        verify(sensor.start())
+        verify(sensor.connectedToBackend)
+
+        // According to isFeatureSupported() override implementation in test_backends.h,
+        // only SkipDuplicates should be supported afterwards
+        verify(!sensor.isFeatureSupported(Sensor.Buffering))
+        verify(!sensor.isFeatureSupported(Sensor.AlwaysOn))
+        verify(!sensor.isFeatureSupported(Sensor.GeoValues))
+        verify(!sensor.isFeatureSupported(Sensor.FieldOfView))
+        verify(!sensor.isFeatureSupported(Sensor.AccelerationMode))
+        verify(sensor.isFeatureSupported(Sensor.SkipDuplicates))
+        verify(!sensor.isFeatureSupported(Sensor.AxesOrientation))
+        verify(!sensor.isFeatureSupported(Sensor.PressureSensorTemperature))
+
+        sensor.destroy()
+    }
 }