optimize progress invocation

src/Snap.Hutao/Snap.Hutao/Core/Threading/DispatcherQueueProgress.cs

@@ -1,45 +1,24 @@
 // Copyright (c) DGP Studio. All rights reserved.
 // Licensed under the MIT license.
 
+using Microsoft.UI.Dispatching;
+
 namespace Snap.Hutao.Core.Threading;
 
 internal class DispatcherQueueProgress<T> : IProgress<T>
 {
-    private readonly SynchronizationContext synchronizationContext;
-    private readonly Action<T>? handler;
-    private readonly SendOrPostCallback invokeHandlers;
+    private readonly DispatcherQueue dispatcherQueue;
+    private readonly Action<T> handler;
 
-    public DispatcherQueueProgress(Action<T> handler, SynchronizationContext synchronizationContext)
+    public DispatcherQueueProgress(Action<T> handler, DispatcherQueue dispatcherQueue)
     {
-        this.synchronizationContext = synchronizationContext;
-        invokeHandlers = new SendOrPostCallback(InvokeHandlers);
-
-        ArgumentNullException.ThrowIfNull(handler);
-
+        this.dispatcherQueue = dispatcherQueue;
         this.handler = handler;
     }
 
-    public event EventHandler<T>? ProgressChanged;
-
     public void Report(T value)
     {
-        Action<T>? handler = this.handler;
-        EventHandler<T>? changedEvent = ProgressChanged;
-        if (handler is not null || changedEvent is not null)
-        {
-            synchronizationContext.Post(invokeHandlers, value);
-        }
-    }
-
-    [SuppressMessage("", "SH007")]
-    private void InvokeHandlers(object? state)
-    {
-        T value = (T)state!;
-
-        Action<T>? handler = this.handler;
-        EventHandler<T>? changedEvent = ProgressChanged;
-
-        handler?.Invoke(value);
-        changedEvent?.Invoke(this, value);
+        Action<T> handler = this.handler;
+        dispatcherQueue.TryEnqueue(() => handler(value));
     }
 }

src/Snap.Hutao/Snap.Hutao/Core/Threading/ITaskContext.cs

@@ -8,8 +8,6 @@ namespace Snap.Hutao.Core.Threading;
 /// </summary>
 internal interface ITaskContext
 {
-    SynchronizationContext SynchronizationContext { get; }
-
     void BeginInvokeOnMainThread(Action action);
 
     void InvokeOnMainThread(Action action);

src/Snap.Hutao/Snap.Hutao/Core/Threading/ITaskContextUnsafe.cs

@@ -0,0 +1,11 @@
+// Copyright (c) DGP Studio. All rights reserved.
+// Licensed under the MIT license.
+
+using Microsoft.UI.Dispatching;
+
+namespace Snap.Hutao.Core.Threading;
+
+internal interface ITaskContextUnsafe
+{
+    DispatcherQueue DispatcherQueue { get; }
+}

src/Snap.Hutao/Snap.Hutao/Core/Threading/TaskContext.cs

@@ -9,7 +9,7 @@ namespace Snap.Hutao.Core.Threading;
 /// 任务上下文
 /// </summary>
 [Injection(InjectAs.Singleton, typeof(ITaskContext))]
-internal sealed class TaskContext : ITaskContext
+internal sealed class TaskContext : ITaskContext, ITaskContextUnsafe
 {
     private readonly DispatcherQueueSynchronizationContext synchronizationContext;
     private readonly DispatcherQueue dispatcherQueue;
@@ -24,7 +24,7 @@ internal sealed class TaskContext : ITaskContext
         SynchronizationContext.SetSynchronizationContext(synchronizationContext);
     }
 
-    public SynchronizationContext SynchronizationContext { get => synchronizationContext; }
+    public DispatcherQueue DispatcherQueue { get => dispatcherQueue; }
 
     /// <inheritdoc/>
     public ThreadPoolSwitchOperation SwitchToBackgroundAsync()