/// <summary>
/// Starts displaying all views in order of their insertion into the queue
/// </summary>
public async void Show()
{
if (mQueue.Count != 0)
{
mCurrent = mQueue.Dequeue();
mCurrentOriginalDismissListener = mCurrent.DismissListener;
mCurrent.DismissListener = this;
mCurrent.Show();
if (autoRunDelay != null)
{
await Task.Delay((TimeSpan)autoRunDelay);
if (mQueue.Count > 0)
{
mCurrent.Hide();
}
else if (mQueue.Count == 0 && autoRunClosesQueue)
{
mCurrent.Hide();
}
}
}
else if (QueueCompleted != null)
{
QueueCompleted.Invoke(this, new EventArgs()
{
});
}
}
private async void ProcessQueue()
{
var activeJobs = new List <Task>();
var resultReported = false;
var failed = 0;
var succeeded = 0;
do
{
while (activeJobs.Count < ConcurrentWorkers && this.queue.TryDequeue(out var worker))
{
activeJobs.Add(worker.SyncAsync());
}
if (activeJobs.Count > 0)
{
resultReported = false;
await Task.WhenAny(activeJobs);
failed += activeJobs.Count(x => x.IsFaulted && x.IsCompleted);
succeeded += activeJobs.Count(x => !x.IsFaulted && x.IsCompleted);
activeJobs = activeJobs.Where(x => !x.IsCompleted).ToList();
}
else
{
if (!resultReported && QueueCompleted != null)
{
QueueCompleted?.Invoke(this, new QueueCompletedEventArgs(Volatile.Read(ref queueSize), succeeded, failed));
resultReported = true;
}
succeeded = 0;
failed = 0;
Volatile.Write(ref queueSize, 0);
System.Threading.Thread.Sleep(100);
}
} while (this.enabled);
}
private void Downloader_DownloadError(object sender, System.EventArgs e)
{
QueueElementCompleted?.Invoke(this, new QueueElementCompletedEventArgs(CurrentIndex, _currentElement));
for (var i = 0; i < _elements.Count; i++)
{
if (_elements[i].Equals(_currentElement))
{
_elements[i] = new HttpDownloadQueueElement
{
Id = _elements[i].Id,
Url = _elements[i].Url,
Destination = _elements[i].Destination,
Completed = true
};
break;
}
}
var active = Form.ActiveForm;
if (active != null && active.InvokeRequired)
{
active.BeginInvoke((MethodInvoker) delegate
{
MessageBox.Show("Download error occurred. Please check your connection, and that the content requested is available for download.",
"Download Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
});
}
else
{
MessageBox.Show("Download error occurred. Please check your connection, and that the content requested is available for download.",
"Download Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
QueueCompleted?.Invoke(this, new System.EventArgs());
}