private void SetTileDownloading(TileSpecifier specifier)
{
lock (CurrentDownloads)
{
CurrentDownloads.Add(specifier);
}
}
private void SetTileFinishedDownloading(TileSpecifier specifier)
{
lock (CurrentDownloads)
{
CurrentDownloads.Remove(specifier);
}
}
/// <summary>
/// Discovers Current and Completed Downloads.
/// </summary>
public async Task DiscoverDownloadsAsync()
{
CurrentDownloads.Clear();
CompletedDownloads.Clear();
var currentDownloads = await _downloader.DiscoverBackgroundDownloadsAsync();
foreach (var download in currentDownloads)
{
var status = download.Progress.Status;
if (status == BackgroundTransferStatus.Canceled)
{
continue;
}
var appDownloadItem = GetAppDownloadItem(download);
appDownloadItem.Tag = download;
if (status == BackgroundTransferStatus.Completed)
{
CompletedDownloads.Add(appDownloadItem);
}
else
{
CurrentDownloads.Add(appDownloadItem);
}
}
}
public async Task StartDownloadAsync(AppDownloadItem appDownloadItem)
{
await InitializeAsync();
if (FindAppInCurrentDownloads(appDownloadItem.AppGuid) != null)
{
return;
}
// Start Download
CurrentDownloads.Add(appDownloadItem);
appDownloadItem.StorageFile = await CurrentApplication.AppDownloadFolder.CreateFileAsync(
$"{appDownloadItem.AppGuid}.pstl",
CreationCollisionOption.ReplaceExisting);
var downloadOperation = await _downloader.StartDownloadAsync(
ServerUri.GetAppDownloadUri(appDownloadItem.AppGuid),
appDownloadItem.StorageFile);
appDownloadItem.StartDate = DateTime.Now;
appDownloadItem.DownloadGuid = downloadOperation.Guid;
appDownloadItem.Tag = downloadOperation;
// update collections
_downloadsHistory.Add(appDownloadItem);
await SaveDownloadsHistoryToFileAsync();
}
private void downloader_DownloadProgress(DownloadOperation downloadOperation)
{
var appDownloadItem = CurrentDownloads.SingleOrDefault(item =>
(item.Tag as DownloadOperation).Guid == downloadOperation.Guid);
if (appDownloadItem == null)
{
return;
}
appDownloadItem.BytesReceived = downloadOperation.Progress.BytesReceived;
appDownloadItem.SetStatus(downloadOperation.Progress.Status);
// When this event handler is occured for first time (for a specefic DownloadOperation),
// appDownloadItem.TotalBytesToReceive is zero
if (appDownloadItem.TotalBytesToReceive == 0)
{
appDownloadItem.TotalBytesToReceive = downloadOperation.Progress.TotalBytesToReceive;
}
// OS might not report a download completion event, we should check this.
if ((downloadOperation.Progress.BytesReceived == downloadOperation.Progress.TotalBytesToReceive) &&
(downloadOperation.Progress.BytesReceived > 0))
{
appDownloadItem.SetStatus(BackgroundTransferStatus.Completed);
}
if (appDownloadItem.GetStatus() == BackgroundTransferStatus.Completed)
{
appDownloadItem.EndDate = DateTime.Now;
CurrentDownloads.Remove(appDownloadItem);
CompletedDownloads.Add(appDownloadItem);
var task = SaveDownloadsHistoryToFileAsync();
if (this.DownloadCompleted != null)
{
DownloadCompleted(appDownloadItem);
}
}
if (this.DownloadProgress != null)
{
DownloadProgress(appDownloadItem);
}
}
public static MapsetDownload Download(int id)
{
// Require login in order to download.
if (!OnlineManager.Connected)
{
NotificationManager.Show(NotificationLevel.Error, "You must be logged in to download mapsets!");
return(null);
}
if (CurrentDownloads.Count >= MAX_CONCURRENT_DOWNLOADS)
{
NotificationManager.Show(NotificationLevel.Error, $"Slow down! You can only download {MAX_CONCURRENT_DOWNLOADS} at a time!");
return(null);
}
var download = new MapsetDownload(id);
CurrentDownloads.Add(download);
return(download);
}
public override ArchiveDownloadRequest <IScoreInfo> GetExistingDownload(IScoreInfo model) => CurrentDownloads.Find(r => r.Model.OnlineID == model.OnlineID);
public AppDownloadItem FindAppInCurrentDownloads(Guid appGuid)
{
return(CurrentDownloads.SingleOrDefault(appDownloadItem => appDownloadItem.AppGuid == appGuid));
}
