WASM State Fixes

DeepDrftPublic.Client/Layout/MainLayout.razor

@@ -45,7 +45,7 @@
 
 @code {
     private const string DarkModeKey = "darkMode";
-    private bool _isDarkMode = true;
+    private bool _isDarkMode = false;
     private PersistingComponentStateSubscription _persistingSubscription;
 
     [Inject] public required PersistentComponentState PersistentState { get; set; }

DeepDrftPublic.Client/Pages/TracksView.razor.cs

@@ -8,18 +8,35 @@ namespace DeepDrftPublic.Client.Pages;
 
 public partial class TracksView : ComponentBase, IDisposable
 {
+    private const string PersistKey = "tracks-page";
+
     [Inject] public required TracksViewModel ViewModel { get; set; }
+    [Inject] public required PersistentComponentState PersistentState { get; set; }
     [CascadingParameter] public required IStreamingPlayerService PlayerService { get; set; }
 
     private TrackDto? _selectedTrack = null;
-    private int _clickCount = 0;
-    private string _lifecycleStatus = "Not initialized";
     private IStreamingPlayerService? _subscribedService;
+    private PersistingComponentStateSubscription _persistingSubscription;
 
     protected override async Task OnInitializedAsync()
     {
-        _lifecycleStatus = "OnInitializedAsync called";
-        await SetPage(1);
+        // Carry the prerendered page across the prerender -> interactive (WASM) seam.
+        // Without this, the WASM pass gets a fresh scoped ViewModel (Page == null),
+        // re-renders the skeleton, re-fetches, and replaces the gallery DOM a few
+        // seconds in — replaying TrackCard entrance animations. Mirror the dark-mode
+        // PersistentComponentState bridge: persist on the way out of prerender,
+        // restore on the interactive pass, and only fetch on a miss.
+        _persistingSubscription = PersistentState.RegisterOnPersisting(PersistTracks);
+
+        if (PersistentState.TryTakeFromJson<PagedResult<TrackDto>>(PersistKey, out var restored) && restored is not null)
+        {
+            ViewModel.Page = restored;
+            ViewModel.PageNumber = restored.Page;
+        }
+        else
+        {
+            await SetPage(ViewModel.PageNumber);
+        }
     }
 
     protected override void OnParametersSet()
@@ -51,21 +68,15 @@ public partial class TracksView : ComponentBase, IDisposable
         }
     }
 
-    protected override async Task OnAfterRenderAsync(bool firstRender)
+    private Task PersistTracks()
     {
-        if (firstRender)
+        if (ViewModel.Page is not null)
         {
-            _lifecycleStatus = "OnAfterRenderAsync called - WebAssembly is active!";
-            StateHasChanged();
+            PersistentState.PersistAsJson(PersistKey, ViewModel.Page);
         }
+        return Task.CompletedTask;
     }
 
-    private void TestInteractivity()
-    {
-        _clickCount++;
-        _lifecycleStatus = $"Button clicked {_clickCount} times - Interactivity working!";
-    }
-    
     private async Task SetPage(int newPage)
     {
         var result = await ViewModel.TrackData.GetPage(newPage, ViewModel.PageSize, ViewModel.SortBy, ViewModel.IsDescending);
@@ -89,16 +100,18 @@ public partial class TracksView : ComponentBase, IDisposable
         {
             await PlayerService.SelectTrack(track);
         }
-        
+
         _selectedTrack = track;
     }
 
     public void Dispose()
     {
+        _persistingSubscription.Dispose();
+
         if (_subscribedService != null)
         {
             _subscribedService.StateChanged -= OnPlayerStateChanged;
             _subscribedService = null;
         }
     }
-}
+}

DeepDrftPublic/Components/App.razor

@@ -12,7 +12,7 @@
     <link href=@Assets["_content/MudBlazor/MudBlazor.min.css"] rel="stylesheet" />
     <link rel="stylesheet" href="@Assets["DeepDrftPublic.styles.css"]"/>
     <link rel="stylesheet" href="@Assets["_content/DeepDrftShared.Client/styles/deepdrft-tokens.css"]" />
-    <link rel="stylesheet" href="styles/deepdrft-styles.css" />
+    <link rel="stylesheet" href="@Assets["styles/deepdrft-styles.css"]" />
     <ImportMap />
     <link rel="icon" type="image/ico" href="deepdrft-logo.ico" />
     <HeadOutlet @rendermode="InteractiveAuto" />