private void AddObjects(params DownloaderObjectModel[] objects)
{
Monitor.Enter(_lockDownloadItemsList);
int total = objects.Count();
try
{
Application.Current.Dispatcher.Invoke(() =>
{
for (int i = 0; i < total; i++)
{
if (objects[i] == null)
{
continue;
}
DownloadItemsList.Add(objects[i]);
if (objects[i].IsQueued)
{
this.QueueProcessor.Add(objects[i]);
}
}
});
}
catch { }
finally
{
Monitor.Exit(_lockDownloadItemsList);
}
}
private void CollectionView_CurrentChanged(object sender, EventArgs e)
{
var items = DownloadItemsList.ToArray();
int finished = 0;
int queued = 0;
int errored = 0;
int ready = 0;
int verifying = 0;
int paused = 0;
int downloading = 0;
int total = items.Count();
foreach (var item in items)
{
switch (item.Status)
{
case DownloadStatus.Downloading:
downloading++;
break;
case DownloadStatus.Error:
errored++;
break;
case DownloadStatus.Finished:
finished++;
break;
case DownloadStatus.Paused:
paused++;
if (item.IsQueued)
{
queued++;
}
break;
case DownloadStatus.Queued:
queued++;
break;
case DownloadStatus.Ready:
ready++;
break;
case DownloadStatus.Verifying:
verifying++;
break;
}
}
this.Count = total;
this.DownloadingCount = downloading;
this.ErroredCount = errored;
this.FinishedCount = finished;
this.PausedCount = paused;
this.QueuedCount = queued;
this.ReadyCount = ready;
this.VerifyingCount = verifying;
RaisePropertyChanged(nameof(this.Count));
RaisePropertyChanged(nameof(this.DownloadingCount));
RaisePropertyChanged(nameof(this.ErroredCount));
RaisePropertyChanged(nameof(this.FinishedCount));
RaisePropertyChanged(nameof(this.PausedCount));
RaisePropertyChanged(nameof(this.QueuedCount));
RaisePropertyChanged(nameof(this.ReadyCount));
RaisePropertyChanged(nameof(this.VerifyingCount));
RaisePropertyChanged(nameof(this.IsDownloading));
if (!this.IsBackgroundWorking)
{
if (downloading > 0)
{
this.Status = downloading + " item(s) downloading";
}
else
{
if (_semaphoreUpdatingList.CurrentCount > 0)
{
this.Status = "Ready";
}
}
RaisePropertyChanged(nameof(this.Status));
}
}
private async Task RemoveObjectsAsync(bool delete, params DownloaderObjectModel[] objects)
{
await _semaphoreUpdatingList.WaitAsync();
var dequeueThese = new List <IQueueable>();
var itemsProcessed = new List <DownloaderObjectModel>();
var total = objects.Count();
_ctsUpdatingList = new CancellationTokenSource();
var ct = _ctsUpdatingList.Token;
RaisePropertyChanged(nameof(this.IsBackgroundWorking));
int progress;
string primaryStatus = "Removing ";
if (delete)
{
primaryStatus = "Deleting ";
}
for (int i = 0; i < total; i++)
{
progress = (int)((double)(i + 1) / total * 100);
this.Status = primaryStatus + (i + 1) + " of " + total + ": " + objects[i].Name;
this.Progress = progress;
RaisePropertyChanged(nameof(this.Status));
RaisePropertyChanged(nameof(this.Progress));
if (objects[i] == null)
{
continue;
}
if (objects[i].IsQueued)
{
objects[i].Dequeue();
dequeueThese.Add(objects[i]);
}
if (objects[i].IsBeingDownloaded)
{
await objects[i].CancelAsync();
}
else
{
// delete all UNFINISHED downloads forcefully
if (objects[i].Status != DownloadStatus.Finished || delete)
{
try
{
if (objects[i].Status == DownloadStatus.Finished)
{
FileSystem.DeleteFile(
objects[i].Destination,
UIOption.OnlyErrorDialogs,
RecycleOption.SendToRecycleBin);
}
else
{
File.Delete(objects[i].TempDestination);
}
}
catch { }
}
}
itemsProcessed.Add(objects[i]);
if (ct.IsCancellationRequested)
{
break;
}
}
this.Status = "Delisting...";
RaisePropertyChanged(nameof(this.Status));
Application.Current.Dispatcher.Invoke(() =>
{
Monitor.Enter(_lockDownloadItemsList);
for (int i = 0; i < itemsProcessed.Count(); i++)
{
DownloadItemsList.Remove(itemsProcessed[i]);
}
Monitor.Exit(_lockDownloadItemsList);
});
if (dequeueThese.Count > 0)
{
this.Status = "Refreshing queue...";
RaisePropertyChanged(nameof(this.Status));
QueueProcessor.Remove(dequeueThese.ToArray());
}
_ctsUpdatingList = null;
this.Status = "Ready";
this.Progress = 0;
RaisePropertyChanged(nameof(this.Status));
RaisePropertyChanged(nameof(this.Progress));
RaisePropertyChanged(nameof(this.IsBackgroundWorking));
_semaphoreUpdatingList.Release();
}
