winrt: Use backend provided timestamps

IGeoCoordinate does provide a timestamp in system time. This value
should be used to provide a timestamp to be forwarded to the user. In
case the information provided is invalid, an invalid QDateTime is used
for the position update.

Task-number: QTBUG-56623
Change-Id: If476b41e5fd183edf33742d8e4401236a32c6037
Reviewed-by: Oliver Wolff <oliver.wolff@qt.io>
Reviewed-by: Alex Blasche <alexander.blasche@qt.io>

1 files changed, 19 insertions, 2 deletions

diff --git a/src/plugins/position/winrt/qgeopositioninfosource_winrt.cpp b/src/plugins/position/winrt/qgeopositioninfosource_winrt.cpp
index 5dbbacb5..4564c76a 100644
--- a/src/plugins/position/winrt/qgeopositioninfosource_winrt.cpp
+++ b/src/plugins/position/winrt/qgeopositioninfosource_winrt.cpp
@@ -331,7 +331,7 @@ void QGeoPositionInfoSourceWinRT::virtualPositionUpdate()
     // We can only do this if we received a valid position before
     if (d->lastPosition.isValid()) {
         QGeoPositionInfo sent = d->lastPosition;
-        sent.setTimestamp(QDateTime::currentDateTime());
+        sent.setTimestamp(sent.timestamp().addMSecs(updateInterval()));
         d->lastPosition = sent;
         emit positionUpdated(sent);
     }
@@ -474,7 +474,24 @@ HRESULT QGeoPositionInfoSourceWinRT::onPositionChanged(IGeolocator *locator, IPo
         currentInfo.setAttribute(QGeoPositionInfo::GroundSpeed, value);
     }
 
-    currentInfo.setTimestamp(QDateTime::currentDateTime());
+    DateTime dateTime;
+    hr = coord->get_Timestamp(&dateTime);
+
+    if (dateTime.UniversalTime > 0) {
+        ULARGE_INTEGER uLarge;
+        uLarge.QuadPart = dateTime.UniversalTime;
+        FILETIME fileTime;
+        fileTime.dwHighDateTime = uLarge.HighPart;
+        fileTime.dwLowDateTime = uLarge.LowPart;
+        SYSTEMTIME systemTime;
+        if (FileTimeToSystemTime(&fileTime, &systemTime)) {
+            currentInfo.setTimestamp(QDateTime(QDate(systemTime.wYear, systemTime.wMonth,
+                                                     systemTime.wDay),
+                                               QTime(systemTime.wHour, systemTime.wMinute,
+                                                     systemTime.wSecond, systemTime.wMilliseconds),
+                                               Qt::UTC));
+        }
+    }
 
     emit nativePositionUpdate(currentInfo);