private async Task HandleDownloadAsync(DownloadOperation download, bool start)
{
DownloadViewModel Selected = Downloads.FirstOrDefault(p => p.Address == download.RequestedUri.ToString());
try {
// LogStatus("Running: " + download.Guid, NotifyType.StatusMessage);
// Store the download so we can pause/resume.
// activeDownloads.Add(download);
Progress <DownloadOperation> progressCallback = new Progress <DownloadOperation>(DownloadProgress);
if (start)
{
// Start the download and attach a progress handler.
await download.StartAsync().AsTask(cts.Token, progressCallback);
}
else
{
// The download was already running when the application started, re-attach the progress handler.
await download.AttachAsync().AsTask(cts.Token, progressCallback);
}
ResponseInformation response = download.GetResponseInformation();
// GetResponseInformation() returns null for non-HTTP transfers (e.g., FTP).
string statusCode = response != null?response.StatusCode.ToString() : String.Empty;
// download completed
Selected.Status = "decompressing...";
Selected.IsDownloadVisible = false;
// Unzip
var zipFile = await ApplicationData.Current.LocalFolder.GetFileAsync(Selected.FullFileName);
var unzipFolder = await FileHelper.GetFolderNotNullAsync(
ApplicationData.Current.LocalFolder, "cards");
await ZipHelper.UnZipFileAsync(zipFile, unzipFolder);
// end
Selected.Complete();
} catch (TaskCanceledException) {
// LogStatus("Canceled: " + download.Guid, NotifyType.StatusMessage);
} catch (Exception) {
if (Selected != null)
{
await Selected.Delete();
}
} finally {
// activeDownloads.Remove(download);
}
}