private async void Enqueue(Uri uri, string namebase, Mediatype type, string extension = null)
{
DebugUtil.Log(() => "ContentsDownloader: Enqueue " + uri.AbsolutePath);
if (extension == null)
{
var split = uri.AbsolutePath.Split('.');
if (split.Length > 0)
{
extension = "." + split[split.Length - 1].ToLower();
DebugUtil.Log(() => "detected file extension: " + extension);
}
}
await SystemUtil.GetCurrentDispatcher().RunAsync(CoreDispatcherPriority.Low, () =>
{
var req = new DownloadRequest
{
Uri = uri,
NameBase = namebase,
Completed = OnFetched,
Error = OnFailed,
Mediatype = type,
extension = extension
};
DownloadQueue.Enqueue(req);
QueueStatusUpdated?.Invoke(DownloadQueue.Count);
ProcessQueueSequentially();
});
}
public static async Task SetAsBitmap(byte[] data, ImageDataSource target, CoreDispatcher Dispatcher = null)
{
using (var stream = new InMemoryRandomAccessStream())
{
await stream.WriteAsync(data.AsBuffer());
stream.Seek(0);
if (Dispatcher == null)
{
Dispatcher = SystemUtil.GetCurrentDispatcher();
}
if (Dispatcher == null)
{
return;
}
await Dispatcher.RunAsync(CoreDispatcherPriority.High, () =>
{
var image = new BitmapImage();
image.SetSource(stream);
target.Image = image;
});
}
}
private async Task Enqueue(Uri uri, string namebase, Mediatype type, CancellationTokenSource cts, string extension = null)
{
DebugUtil.LogSensitive(() => "ContentsDownloader: Enqueue {0}", uri.AbsolutePath);
if (extension == null)
{
var split = uri.AbsolutePath.Split('.');
if (split.Length > 0)
{
extension = "." + split[split.Length - 1].ToLower();
DebugUtil.Log(() => "detected file extension: " + extension);
}
}
var tcs = new TaskCompletionSource <bool>();
await SystemUtil.GetCurrentDispatcher().RunAsync(CoreDispatcherPriority.Low, () =>
{
var req = new DownloadRequest
{
Uri = uri,
NameBase = namebase,
Completed = OnFetched,
Error = OnFailed,
Mediatype = type,
FileExtension = extension,
CompletionSource = tcs,
CancellationTokenSource = cts,
};
DownloadQueue.Enqueue(req);
QueueStatusUpdated?.Invoke(DownloadQueue.Count);
ProcessQueueSequentially();
});
await tcs.Task;
}