Use cancellation tokens

AniStream/ViewModels/ProviderSearchViewModel.cs

@@ -1,11 +1,12 @@
 using System;
+using System.Threading;
 using System.Threading.Tasks;
 using AniStream.Utils;
 using AniStream.ViewModels.Framework;
+using Berry.Maui.Controls;
 using CommunityToolkit.Mvvm.Input;
 using Juro.Core.Models.Anime;
 using Juro.Core.Providers;
-using Berry.Maui.Controls;
 
 namespace AniStream.ViewModels;
 
@@ -15,6 +16,10 @@ public partial class ProviderSearchViewModel : CollectionViewModel<IAnimeInfo>
     private readonly BottomSheet _bottomSheet;
     private readonly EpisodeViewModel _episodeViewModel;
 
+    private readonly CancellationTokenSource _cancellationTokenSource = new();
+
+    public CancellationToken CancellationToken => _cancellationTokenSource.Token;
+
     public ProviderSearchViewModel(
         EpisodeViewModel episodeViewModel,
         BottomSheet bottomSheet,
@@ -46,13 +51,16 @@ protected override async Task LoadCore()
 
         try
         {
-            var result = await _provider.SearchAsync(Query);
+            var result = await _provider.SearchAsync(Query, CancellationToken);
             Push(result);
             Offset += result.Count;
         }
         catch (Exception ex)
         {
-            await App.AlertService.ShowAlertAsync("Error", ex.ToString());
+            if (!CancellationToken.IsCancellationRequested)
+            {
+                await App.AlertService.ShowAlertAsync("Error", ex.ToString());
+            }
         }
         finally
         {
@@ -67,4 +75,6 @@ async Task ItemSelected(IAnimeInfo item)
         await _bottomSheet.DismissAsync();
         await _episodeViewModel.LoadEpisodes(item);
     }
+
+    public void Cancel() => _cancellationTokenSource.Cancel();
 }

AniStream/Views/BottomSheets/ProviderSearchSheet.xaml.cs

@@ -1,4 +1,5 @@
-using Berry.Maui;
+using AniStream.ViewModels;
+using Berry.Maui;
 using Microsoft.Maui;
 using Microsoft.Maui.Controls;
 using Microsoft.Maui.Devices;
@@ -25,6 +26,11 @@ public ProviderSearchSheet()
         {
             SearchEntry.Focused -= SearchEntry_Focused;
             SearchEntry.Completed -= SearchEntry_Completed;
+
+            if (BindingContext is ProviderSearchViewModel viewModel)
+            {
+                viewModel.Cancel();
+            }
         };
 
         var statusBarHeight =

AniStream/Views/BottomSheets/EpisodeSelectionSheet.xaml → AniStream/Views/BottomSheets/VideoSourceSheet.xaml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8" ?>
 <local:BaseBottomSheetView
-    x:Class="AniStream.Views.BottomSheets.EpisodeSelectionSheet"
+    x:Class="AniStream.Views.BottomSheets.VideoSourceSheet"
     xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
     xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
     xmlns:berry="https://schemas.jerry08/dotnet/2023/maui"

AniStream/Views/BottomSheets/EpisodeSelectionSheet.xaml.cs → AniStream/Views/BottomSheets/VideoSourceSheet.xaml.cs

@@ -1,18 +1,26 @@
-using Microsoft.Maui.Devices;
+using AniStream.ViewModels;
+using Microsoft.Maui.Devices;
 
 namespace AniStream.Views.BottomSheets;
 
-public partial class EpisodeSelectionSheet
+public partial class VideoSourceSheet
 {
-    public EpisodeSelectionSheet()
+    public VideoSourceSheet()
     {
         InitializeComponent();
 
         Shown += (_, _) => DeviceDisplay.Current.MainDisplayInfoChanged += OnMainDisplayInfoChanged;
 
         Dismissed += (_, _) =>
+        {
             DeviceDisplay.Current.MainDisplayInfoChanged -= OnMainDisplayInfoChanged;
 
+            if (BindingContext is VideoSourceViewModel viewModel)
+            {
+                viewModel.Cancel();
+            }
+        };
+
         //this.UpdateChildrenLayout();
     }