public async void UpdateFile(MessageViewModel message, File file)
{
var sticker = GetContent(message.Content);
if (sticker == null)
{
return;
}
if (sticker.StickerValue.Id != file.Id)
{
return;
}
if (file.Local.IsDownloadingCompleted)
{
Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path);
ElementCompositionPreview.SetElementChildVisual(this, null);
}
else if (file.Local.CanBeDownloaded && !file.Local.IsDownloadingActive)
{
message.ProtoService.DownloadFile(file.Id, 1);
}
}
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();
}
}
private async void OnContainerContentChanging(ListViewBase sender, ContainerContentChangingEventArgs args)
{
if (args.InRecycleQueue)
{
return;
}
var content = args.ItemContainer.ContentTemplateRoot as Grid;
var sticker = args.Item as Sticker;
var file = sticker.StickerValue;
if (file.Local.IsDownloadingCompleted)
{
if (content.Children[0] is Border border && border.Child is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 60);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
else if (args.Phase == 0 && content.Children[0] is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(file.Local.Path);
}
}
public async void UpdateFile(File file)
{
if (_stickers.TryGetValue(file.Id, out List <StickerViewModel> items) && items.Count > 0)
{
foreach (var sticker in items.ToImmutableHashSet())
{
sticker.UpdateFile(file);
var container = List.ContainerFromItem(sticker) as SelectorItem;
if (container == null)
{
continue;
}
var content = container.ContentTemplateRoot as Border;
if (content == null)
{
continue;
}
if (content.Child is Border border && border.Child is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 68);
ElementCompositionPreview.SetElementChildVisual(content.Child, null);
}
else if (content.Child is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(file.Local.Path);
_handler.ThrottleVisibleItems();
}
}
private async void OnContainerContentChanging(ListViewBase sender, ContainerContentChangingEventArgs args)
{
if (args.InRecycleQueue)
{
return;
}
var content = args.ItemContainer.ContentTemplateRoot as Grid;
var stickerSet = args.Item as StickerSetInfo;
var title = content.Children[1] as TextBlock;
title.Text = stickerSet.Title;
var subtitle = content.Children[2] as TextBlock;
subtitle.Text = Locale.Declension("Stickers", stickerSet.Size);
var file = stickerSet.GetThumbnail(out var outline, out _);
if (file == null)
{
return;
}
if (file.Local.IsDownloadingCompleted)
{
if (content.Children[0] is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 48);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
else if (args.Phase == 0 && content.Children[0] is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(file.Local.Path);
}
}
else if (file.Local.CanBeDownloaded && !file.Local.IsDownloadingActive)
{
if (content.Children[0] is Image photo)
{
photo.Source = null;
}
else if (args.Phase == 0 && content.Children[0] is LottieView lottie)
{
lottie.Source = null;
}
CompositionPathParser.ParseThumbnail(outline, out ShapeVisual visual, false);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], visual);
_filesMap[file.Id].Add(stickerSet);
ViewModel.ProtoService.DownloadFile(file.Id, 1);
}
args.Handled = true;
}
private async void UpdateSticker(object target, File file)
{
var content = target as Grid;
if (content == null)
{
return;
}
if (content.Children[0] is Border border && border.Child is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 68);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
private async void UpdateFile(MessageViewModel message, File file)
{
var sticker = GetContent(message);
if (sticker == null)
{
return;
}
if (sticker.StickerValue.Id != file.Id)
{
return;
}
if (file.Local.IsFileExisting())
{
var size = 180 * WindowContext.Current.RasterizationScale;
if (size > 512)
{
size = 512;
}
Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, size);
ElementCompositionPreview.SetElementChildVisual(this, null);
UpdateManager.Unsubscribe(this, ref _fileToken);
}
else
{
Source = null;
UpdateThumbnail(message, sticker);
UpdateManager.Subscribe(this, message, sticker.StickerValue, ref _fileToken, UpdateFile, true);
if (file.Local.CanBeDownloaded && !file.Local.IsDownloadingActive)
{
message.ProtoService.DownloadFile(file.Id, 1);
}
}
}
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();
}
}
});
}
}
private async void OnContainerContentChanging(ListViewBase sender, ContainerContentChangingEventArgs args)
{
if (args.InRecycleQueue)
{
return;
}
var content = args.ItemContainer.ContentTemplateRoot as Grid;
var stickerSet = args.Item as StickerSetInfo;
var title = content.Children[1] as TextBlock;
title.Text = stickerSet.Title;
var subtitle = content.Children[2] as TextBlock;
subtitle.Text = Locale.Declension("Stickers", stickerSet.Size);
var cover = stickerSet.GetThumbnail();
if (cover == null)
{
return;
}
var file = cover.StickerValue;
if (file.Local.IsFileExisting())
{
if (content.Children[0] is Image photo)
{
photo.Source = await PlaceholderHelper.GetWebPFrameAsync(file.Local.Path, 48);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], null);
}
else if (args.Phase == 0 && content.Children[0] is LottieView lottie)
{
lottie.Source = UriEx.ToLocal(file.Local.Path);
}
else if (args.Phase == 0 && content.Children[0] is AnimationView animation)
{
animation.Source = new LocalVideoSource(file);
}
}
else
{
if (content.Children[0] is Image photo)
{
photo.Source = null;
}
else if (args.Phase == 0 && content.Children[0] is LottieView lottie)
{
lottie.Source = null;
}
else if (args.Phase == 0 && content.Children[0] is AnimationView animation)
{
animation.Source = null;
}
CompositionPathParser.ParseThumbnail(cover, out ShapeVisual visual, false);
ElementCompositionPreview.SetElementChildVisual(content.Children[0], visual);
UpdateManager.Subscribe(content, ViewModel.ProtoService, file, UpdateFile, true);
if (file.Local.CanBeDownloaded && !file.Local.IsDownloadingActive)
{
ViewModel.ProtoService.DownloadFile(file.Id, 1);
}
}
args.Handled = true;
}