perf: Add MidiDeviceConnectionWatcher bindings

unoplatform · Jun 8, 2023 · 0da6c21 · 0da6c21
1 parent a16faba
commit 0da6c21
Showing 1 changed file with 26 additions and 1 deletion.
diff --git a/src/Uno.UWP/Devices/Enumeration/Internal/Providers/Midi/MidiDeviceConnectionWatcher.wasm.cs b/src/Uno.UWP/Devices/Enumeration/Internal/Providers/Midi/MidiDeviceConnectionWatcher.wasm.cs
@@ -5,11 +5,17 @@
 using Uno.Extensions.Specialized;
 using Uno.Foundation;
 
+#if NET7_0_OR_GREATER
+using System.Runtime.InteropServices.JavaScript;
+#endif
+
 namespace Uno.Devices.Enumeration.Internal.Providers.Midi
 {
-	public static class MidiDeviceConnectionWatcher
+	public static partial class MidiDeviceConnectionWatcher
 	{
+#if !NET7_0_OR_GREATER
 		private const string JsType = "Uno.Devices.Enumeration.Internal.Providers.Midi.MidiDeviceConnectionWatcher";
+#endif
 
 		private static readonly object _syncLock = new object();
 
@@ -22,9 +28,13 @@ internal static void AddObserver(MidiDeviceClassProviderBase provider)
 				_observers.Add(provider);
 				if (_observers.Count == 1)
 				{
+#if NET7_0_OR_GREATER
+					NativeMethods.StartStateChanged();
+#else
 					// start WASM device event subscription
 					var command = $"{JsType}.startStateChanged()";
 					WebAssemblyRuntime.InvokeJS(command);
+#endif
 				}
 			}
 		}
@@ -36,9 +46,13 @@ internal static void RemoveObserver(MidiDeviceClassProviderBase provider)
 				_observers.Remove(provider);
 				if (_observers.Count == 0)
 				{
+#if NET7_0_OR_GREATER
+					NativeMethods.StopStateChanged();
+#else
 					// stop WASM device event subscription
 					var command = $"{JsType}.stopStateChanged()";
 					WebAssemblyRuntime.InvokeJS(command);
+#endif
 				}
 			}
 		}
@@ -72,5 +86,16 @@ public static int DispatchStateChanged(string id, string name, bool isInput, boo
 
 			return 0;
 		}
+
+#if NET7_0_OR_GREATER
+		internal static partial class NativeMethods
+		{
+			[JSImport($"globalThis.Uno.Devices.Enumeration.Internal.Providers.Midi.MidiDeviceConnectionWatcher.startStateChanged")]
+			internal static partial void StartStateChanged();
+
+			[JSImport($"globalThis.Uno.Devices.Enumeration.Internal.Providers.Midi.MidiDeviceConnectionWatcher.stopStateChanged")]
+			internal static partial void StopStateChanged();
+		}
+#endif
 	}
 }