107 lines
3.0 KiB
C#
107 lines
3.0 KiB
C#
using Avalonia.Controls;
|
|
using Avalonia.Input;
|
|
using Avalonia.Interactivity;
|
|
using Avalonia.Media.Imaging;
|
|
using Avalonia.Threading;
|
|
using Harmonia.Core.Playlists;
|
|
using Harmonia.UI.ViewModels;
|
|
using System.Collections.Concurrent;
|
|
using System.ComponentModel;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
|
|
namespace Harmonia.UI.Views;
|
|
|
|
public partial class PlaylistView : UserControl
|
|
{
|
|
private readonly PlaylistViewModel _viewModel;
|
|
private readonly ConcurrentDictionary<int, CancellationTokenSource> _imageCancellationTokens = [];
|
|
|
|
public PlaylistView()
|
|
{
|
|
InitializeComponent();
|
|
|
|
_viewModel = (PlaylistViewModel)DataContext!;
|
|
_viewModel.PropertyChanged += OnViewModelPropertyChanged;
|
|
}
|
|
|
|
private async void OnViewModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
|
|
{
|
|
if (e.PropertyName == nameof(_viewModel.FilteredPlaylistSongs))
|
|
{
|
|
await Dispatcher.UIThread.InvokeAsync(SlideInSongs);
|
|
}
|
|
}
|
|
|
|
private async Task SlideInSongs()
|
|
{
|
|
await Animations.Animations.SlideFromRight(100, duration: 300).RunAsync(PlaylistListBox);
|
|
}
|
|
|
|
private void OnLoaded(object? sender, RoutedEventArgs e)
|
|
{
|
|
//_storageProvider = TopLevel.GetTopLevel(this)?.StorageProvider;
|
|
}
|
|
|
|
private async void ListBox_DoubleTapped(object? sender, TappedEventArgs e)
|
|
{
|
|
if (sender is ListBox listBox && listBox.SelectedItem is PlaylistSong playlistSong)
|
|
{
|
|
await _viewModel.PlaySongAsync(playlistSong);
|
|
}
|
|
}
|
|
|
|
private void Image_Loaded(object? sender, RoutedEventArgs e)
|
|
{
|
|
if (sender is not Image image)
|
|
return;
|
|
|
|
if (image.DataContext is not PlaylistSong playlistSong)
|
|
return;
|
|
|
|
Task.Run(() => DoSomethingAsync(image, playlistSong));
|
|
}
|
|
|
|
private async Task DoSomethingAsync(Image image, PlaylistSong playlistSong)
|
|
{
|
|
int hashCode = image.GetHashCode();
|
|
|
|
_imageCancellationTokens.TryGetValue(hashCode, out CancellationTokenSource? cancellationTokenSource);
|
|
cancellationTokenSource?.Cancel();
|
|
|
|
cancellationTokenSource = new();
|
|
|
|
Bitmap? bitmap = await _viewModel.GetBitmapAsync(playlistSong, cancellationTokenSource.Token);
|
|
|
|
if (bitmap == null)
|
|
return;
|
|
|
|
await Dispatcher.UIThread.InvokeAsync(() => SetSongImageSource(image, bitmap));
|
|
}
|
|
|
|
private static void SetSongImageSource(Image image, Bitmap bitmap)
|
|
{
|
|
image.Source = bitmap;
|
|
}
|
|
|
|
private void Image_Unloaded(object? sender, RoutedEventArgs e)
|
|
{
|
|
if (sender is not Image image)
|
|
return;
|
|
|
|
if (image.DataContext is not PlaylistSong)
|
|
return;
|
|
|
|
if (image.Source is Bitmap bitmap)
|
|
{
|
|
bitmap.Dispose();
|
|
}
|
|
|
|
image.Source = null;
|
|
|
|
int hashCode = image.GetHashCode();
|
|
|
|
_imageCancellationTokens.TryGetValue(hashCode, out CancellationTokenSource? cancellationTokenSource);
|
|
cancellationTokenSource?.Cancel();
|
|
}
|
|
} |