private void DownloaderBatchEvent(object sender, DownloaderBatchEventArgs e)
{
foreach (DownloadItemEventArgs downloadItemEventArgs in e.BatchEvents)
{
DownloadItem downloadItem;
switch (downloadItemEventArgs)
{
case DownloadItemAddedEventArgs downloadItemAddedEvent:
downloadItem = downloadItemAddedEvent.AddedDownloadItem;
break;
case DownloadItemChangedEventArgs downloadItemChangedEvent:
downloadItem = downloadItemChangedEvent.ChangedDownloadItem;
break;
case DownloadItemRemovedEventArgs downloadItemRemovedEvent:
downloadItem = downloadItemRemovedEvent.RemovedDownloadItem;
break;
default:
downloadItem = null;
break;
}
if (downloadItem != null && downloadItem.DownloadPageUrl == downloadUrl)
{
UpdateDownloadStatus(downloadItem);
}
}
}
private void DownloaderBatchEvent(object sender, DownloaderBatchEventArgs e)
{
if (e.AddEventCount + e.RemoveEventCount < LARGE_DOWNLOADER_BATCH_UPDATE_ITEM_COUNT)
{
ExecuteInUiThread(() =>
{
isSelectionChangedHandlerEnabled = false;
ApplyDownloaderBatchEventArgs(Downloads, e, out bool selectionButtonStatesUpdateRequired, out bool nonSelectionButtonStatesUpdateRequired);
if (selectionButtonStatesUpdateRequired)
{
UpdateSelectionButtonStates();
UpdateSelectedDownloadLogs();
}
if (nonSelectionButtonStatesUpdateRequired)
{
UpdateNonSelectionButtonStates();
}
isSelectionChangedHandlerEnabled = true;
});
}
else
{
ObservableCollection <DownloadItemViewModel> newDownloads = new ObservableCollection <DownloadItemViewModel>(Downloads);
ApplyDownloaderBatchEventArgs(newDownloads, e, out bool selectionButtonStatesUpdateRequired, out bool nonSelectionButtonStatesUpdateRequired);
ExecuteInUiThread(() =>
{
Downloads = newDownloads;
if (selectionButtonStatesUpdateRequired)
{
UpdateSelectionButtonStates();
UpdateSelectedDownloadLogs();
}
if (nonSelectionButtonStatesUpdateRequired)
{
UpdateNonSelectionButtonStates();
}
});
}
}
private void DownloaderBatchEvent(object sender, DownloaderBatchEventArgs e)
{
if (!(SelectedTabViewModel is DownloadManagerTabViewModel))
{
foreach (DownloadItemEventArgs downloadItemEventArgs in e.BatchEvents)
{
switch (downloadItemEventArgs)
{
case DownloadItemAddedEventArgs _:
IsDownloadManagerButtonHighlighted = true;
break;
case DownloadItemChangedEventArgs downloadItemChangedEvent:
DownloadItem changedDownloadItem = downloadItemChangedEvent.ChangedDownloadItem;
if (changedDownloadItem.Status == DownloadItemStatus.COMPLETED)
{
CompletedDownloadCount++;
IsCompletedDownloadCounterVisible = true;
}
break;
}
}
}
}
private void ApplyDownloaderBatchEventArgs(ObservableCollection <DownloadItemViewModel> downloads, DownloaderBatchEventArgs downloaderBatchEventArgs,
out bool selectionButtonStatesUpdateRequired, out bool nonSelectionButtonStatesUpdateRequired)
{
selectionButtonStatesUpdateRequired = false;
nonSelectionButtonStatesUpdateRequired = false;
foreach (DownloadItemEventArgs downloadItemEventArgs in downloaderBatchEventArgs.BatchEvents)
{
switch (downloadItemEventArgs)
{
case DownloadItemAddedEventArgs downloadItemAddedEvent:
DownloadItemViewModel newDownloadItemViewModel = ToDownloadItemViewModel(downloadItemAddedEvent.AddedDownloadItem);
downloadDictionary[newDownloadItemViewModel.Id] = newDownloadItemViewModel;
downloads.Add(newDownloadItemViewModel);
nonSelectionButtonStatesUpdateRequired = true;
break;
case DownloadItemChangedEventArgs downloadItemChangedEvent:
DownloadItem changedDownloadItem = downloadItemChangedEvent.ChangedDownloadItem;
DownloadItemViewModel changedDownloadItemViewModel = downloadDictionary[changedDownloadItem.Id];
bool statusChanged = changedDownloadItemViewModel.Status != changedDownloadItem.Status;
changedDownloadItemViewModel.Name = changedDownloadItem.FileName;
if (statusChanged)
{
changedDownloadItemViewModel.Status = changedDownloadItem.Status;
}
changedDownloadItemViewModel.ProgressText = GetDownloadProgressText(changedDownloadItem);
changedDownloadItemViewModel.ProgressValue = GetDownloadProgressValue(changedDownloadItem);
if (statusChanged)
{
if (changedDownloadItemViewModel.IsSelected)
{
selectionButtonStatesUpdateRequired = true;
}
nonSelectionButtonStatesUpdateRequired = true;
}
break;
case DownloadItemRemovedEventArgs downloadItemRemovedEvent:
DownloadItem removedDownloadItem = downloadItemRemovedEvent.RemovedDownloadItem;
DownloadItemViewModel removedDownloadItemViewModel = downloadDictionary[removedDownloadItem.Id];
bool wasSelected = removedDownloadItemViewModel.IsSelected;
downloads.Remove(removedDownloadItemViewModel);
if (wasSelected)
{
selectionButtonStatesUpdateRequired = true;
}
nonSelectionButtonStatesUpdateRequired = true;
break;
case DownloadItemLogLineEventArgs downloadItemLogLineEvent:
DownloadItemViewModel downloadItemViewModel = downloadDictionary[downloadItemLogLineEvent.DownloadItemId];
if (downloadItemLogLineEvent.LineIndex >= downloadItemViewModel.Logs.Count)
{
downloadItemViewModel.Logs.Add(ToDownloadItemLogLineViewModel(downloadItemLogLineEvent.LogLine));
}
break;
}
}
}
