private async void UpdateFile(object target, File file)
{
var content = target as Grid;
if (content == null)
{
return;
}
if (content.Children[0] is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 48);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
else if (content.Children[0] is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(file.Local.Path);
_handler.ThrottleVisibleItems();
}
else if (content.Children[0] is AnimationView animation)
{
animation.Source = new LocalVideoSource(file);
_handler.ThrottleVisibleItems();
}
}
public void Activate(Chat chat)
{
_isActive = true;
_handler.ThrottleVisibleItems();
if (chat != null)
{
ViewModel.Update();
}
}
public void UpdateFile(File file)
{
foreach (Sticker sticker in List.Items)
{
if (sticker.UpdateFile(file) && file.Local.IsDownloadingCompleted)
{
if (file.Id == sticker.Thumbnail?.File.Id)
{
var container = List.ContainerFromItem(sticker) as SelectorItem;
if (container == null)
{
continue;
}
var content = container.ContentTemplateRoot as Grid;
if (content == null)
{
continue;
}
var photo = content.Children[0] as Image;
photo.Source = PlaceholderHelper.GetWebPFrame(file.Local.Path);
}
else if (file.Id == sticker.StickerValue.Id)
{
_handler.ThrottleVisibleItems();
}
}
}
_zoomer.UpdateFile(file);
}
private void UpdateFile(object target, File file)
{
if (target is Grid content)
{
if (content.Children[0] is LottieView stickerView)
{
stickerView.Source = UriEx.ToLocal(file.Local.Path);
}
else if (content.Children[0] is AnimationView animationView)
{
animationView.Source = new LocalVideoSource(file);
}
}
_handler.ThrottleVisibleItems();
}
public void Handle(UpdateFile update)
{
if (!update.File.Local.IsDownloadingCompleted)
{
return;
}
if (_filesMap.TryGetValue(update.File.Id, out List <StickerSetInfo> stickers))
{
this.BeginOnUIThread(async() =>
{
foreach (var stickerSet in stickers.ToImmutableHashSet())
{
stickerSet.UpdateFile(update.File);
var container = List.ContainerFromItem(stickerSet) as SelectorItem;
if (container == null)
{
continue;
}
var content = container.ContentTemplateRoot as Grid;
if (content == null)
{
continue;
}
if (content.Children[0] is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(update.File.Local.Path, 48);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
else if (content.Children[0] is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(update.File.Local.Path);
_handler.ThrottleVisibleItems();
}
}
});
}
}
public void Activate()
{
_isActive = true;
_handler.ThrottleVisibleItems();
}
