private void HandleLocationStatusChangedEvent()

in Backend/src/System.Device/Location/LocationProviderInternal.cs [456:510]


        private void HandleLocationStatusChangedEvent(ReportStatus newStatus)
        {
            //
            // If we are registered for civic address reports and a latlong provider
            // has become available, then unregister for civic address reports
            //
            if (m_civicAddrRegistered && m_latLongStatus != ReportStatus.NotSupported)
            {
                if (m_civicAddrRegistered)
                {
                    Guid reportType = LocationReportKey.CivicAddressReport;
                    if (m_location.UnregisterForReport(ref reportType) == 0)
                    {
                        m_civicAddrRegistered = false;
                    }
                }
            }

            GeoLocationStatus prevStatus = Status;
            //
            // Update the current status
            //
            ReportStatus status = (ReportStatus.NotSupported != m_latLongStatus) ? m_latLongStatus : m_civicAddrStatus;
            m_curStatus = m_geoStatusMap[(int)status];

            //
            // If the reported status has changed, send a status change event
            //
            if (prevStatus != Status)
            {
                OnStatusChanged(new GeoLocationStatusChangedEventArgs(Status));

                //
                // If we have location data and have held off sending it until the
                // status becomes ready, send the location event now
                //
                if (GeoLocationStatus.Ready == Status && m_eventPending)
                {
                    m_eventPending = false;
                    OnLocationChanged(new GeoLocationChangedEventArgs(m_curLocation));
                }

                // 
                // If switching to ready from a permission denied state, then the sensor may not
                // send a location changed event. So start a worker thread to get it via a
                // synchronous request for current data.
                // (Note: Check m_curStatus rather than Status because Status won't be Ready
                // if there is no location data.) 
                //
                if (prevStatus == GeoLocationStatus.NoPermissions && m_curStatus == GeoLocationStatus.Ready) 
                {
                    ThreadPool.QueueUserWorkItem(new WaitCallback(this.GetLocationData), null);
                }
            }
        }