private void DownloadProgress(DownloadOperation download)
{
double percent = 100;
if (download.Progress.TotalBytesToReceive > 0)
{
percent = download.Progress.BytesReceived * 100 / download.Progress.TotalBytesToReceive;
}
DeviceContent content = Videos.FirstOrDefault(i => i.SourceName == download.ResultFile.Name);
if (content == null)
{
content = EventVideos.FirstOrDefault(i => i.SourceName == download.ResultFile.Name);
}
if (content == null)
{
content = EventImages.FirstOrDefault(i => i.SourceName == download.ResultFile.Name);
}
if (content != null)
{
content.Progress = percent;
}
}
private async Task HandleDownloadAsync(DownloadOperation download, DeviceContent deviceContent)
{
try
{
deviceContent.Saving = true;
Progress <DownloadOperation> progressCallback = new Progress <DownloadOperation>(DownloadProgress);
await download.StartAsync().AsTask(CancellationToken.None, progressCallback);
}
catch (Exception ex)
{
_logger.Error($"An exception occured during download of [{deviceContent.SourceName}]", ex);
}
finally
{
deviceContent.Progress = 0;
deviceContent.Saving = false;
}
}
internal async Task SaveDeviceContentAsync(DeviceContent e)
{
StorageFile destinationFile;
try
{
StorageFolder folder = e as EventImage != null ? KnownFolders.PicturesLibrary : KnownFolders.VideosLibrary;
destinationFile = await KnownFolders.VideosLibrary.CreateFileAsync(
e.SourceName, CreationCollisionOption.ReplaceExisting);
}
catch (FileNotFoundException)
{
return;
}
DownloadOperation download = _downloader.CreateDownload(new Uri(string.Format("{0}/{1}",
DeviceInstance.BaseAddress, e.SourceName)), destinationFile);
await HandleDownloadAsync(download, e);
}