private async void PlayGif_OnPreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
ProcessingGif = true;
var metadata = await HttpClientFactory.AppApiService.GetUgoiraMetadata(Illust.Id);
var ugoiraZip = metadata.UgoiraMetadataInfo.ZipUrls.Medium;
var delay = metadata.UgoiraMetadataInfo.Frames.Select(f => f.Delay / 10).ToArray();
var streams = PixivIO.ReadGifZipEntries(await PixivIO.FromUrlInternal(ugoiraZip)).ToArray();
ProcessingGif = false;
PlayingGif = true;
#pragma warning disable 4014
Task.Run(async() =>
{
while (!cancellationToken.IsCancellationRequested)
{
for (var i = 0; i < streams.Length && !cancellationToken.IsCancellationRequested; i++)
{
streams[i].Position = 0;
ImgSource = PixivIO.FromStream(streams[i]);
await Task.Delay((int)delay[i], cancellationToken.Token);
}
}
});
#pragma warning restore 4014
}