private void StopTracking()
{
if (_watching)
{
_watching = false;
_qrWatcher?.Stop();
}
}
public void StopScan()
{
if (!IsReady.Value)
{
return;
}
qRCodeWatcher.Stop();
}
public override void Disable()
{
base.Disable();
if (IsTracking)
{
IsTracking = false;
qrTracker?.Stop();
SendProgressMessage("Disabled tracking");
}
}
/// <summary>
/// Deregister from the QRCodeWatcher and shut down the instance.
/// </summary>
private void TearDownQRWatcher()
{
if (qrWatcher != null)
{
qrWatcher.Stop();
qrWatcher.Added -= OnQRCodeAddedEvent;
qrWatcher.Updated -= OnQRCodeUpdatedEvent;
qrWatcher.Removed -= OnQRCodeRemovedEvent;
qrWatcher.EnumerationCompleted -= OnQREnumerationEnded;
qrWatcher = null;
}
}
public void StopQRTracking()
{
if (IsTrackerRunning)
{
IsTrackerRunning = false;
if (qrTracker != null)
{
qrTracker.Stop();
qrCodesList.Clear();
}
var handlers = QRCodesTrackingStateChanged;
if (handlers != null)
{
handlers(this, false);
}
}
}
private async Task StopQRWatchingAsyncImpl(Task previousTask)
{
await previousTask.IgnoreCancellation();
if (qrWatcher != null &&
IsWatcherRunning)
{
qrWatcher.Stop();
IsWatcherRunning = false;
DebugLog("QR tracker was stopped.");
lock (qrCodesList)
{
qrCodesList.Clear();
DebugLog("QR Code list was cleared when stopping.");
}
}
lock (lockObj)
{
startWatcherTask = null;
DebugLog("Start tracker task was set back to null.");
}
}
private void SetupQRTracking()
{
try
{
qrTracker = new QRCodeWatcher();
qrTracker.Stop();
qrCodesList.Clear();
IsTrackerRunning = false;
qrTracker.Added += QRCodeWatcher_Added;
qrTracker.Updated += QRCodeWatcher_Updated;
qrTracker.Removed += QRCodeWatcher_Removed;
qrTracker.EnumerationCompleted += QRCodeWatcher_EnumerationCompleted;
}
catch (Exception ex)
{
Debug.Log("QRCodesManager : exception starting the tracker " + ex.ToString());
}
if (AutoStartQRTracking)
{
StartQRTracking();
}
}
// For shutdown, we just need to stop the watcher public void Shutdown() => watcher?.Stop();
