Fix .NET 9 ASP.NET Blazor issues

scripts/azure-pipelines-complete-internal.yml

@@ -45,7 +45,7 @@ parameters:
     default:
       pool:
         name: Azure Pipelines
-        vmImage: macos-13
+        vmImage: macos-14
         os: macos
   - name: buildAgentLinux
     displayName: 'The Linux build agent configuration:'
@@ -144,7 +144,7 @@ extends:
           buildAgentWindows: ${{ parameters.buildAgentWindows }}
           buildAgentWindowsNative: ${{ parameters.buildAgentWindows }}
           buildAgentMac: ${{ parameters.buildAgentMac }}
-          buildAgentMacNative: ${{ parameters.buildAgentMac }}
+          buildAgentMacNative: ${{ parameters.buildAgentMacNative }}
           buildAgentLinux: ${{ parameters.buildAgentLinux }}
           buildAgentLinuxNative: ${{ parameters.buildAgentLinuxNative }}
           buildAgentAndroidTests: ${{ parameters.buildAgentAndroidTests }}

scripts/azure-pipelines-complete.yml

@@ -51,7 +51,7 @@ parameters:
     default:
       pool:
         name: Azure Pipelines
-        vmImage: macos-13
+        vmImage: macos-14
         os: macos
   - name: buildAgentLinux
     displayName: 'The Linux build agent configuration:'

scripts/azure-pipelines-variables.yml

@@ -13,7 +13,7 @@ variables:
   TIZEN_LINUX_PACKAGES: libxcb-icccm4 libxcb-render-util0 gettext libxcb-image0 libsdl1.2debian libv4l-0 libxcb-randr0 bridge-utils libxcb-shape0 libpython2.7 openvpn libkf5itemmodels5 libkf5kiowidgets5 libkchart2
   MANAGED_LINUX_PACKAGES: ttf-ancient-fonts ninja-build
   XCODE_VERSION: '15.4'
-  XCODE_VERSION_NATIVE: '14.3.1'
+  XCODE_VERSION_NATIVE: '15.4'
   VISUAL_STUDIO_VERSION: ''
   DOTNET_VERSION: '8.0.304'
   DOTNET_VERSION_PREVIEW: ''

scripts/azure-pipelines.yml

@@ -51,7 +51,7 @@ parameters:
     default:
       pool:
         name: Azure Pipelines
-        vmImage: macos-13
+        vmImage: macos-14
         os: macos
   - name: buildAgentLinux
     displayName: 'The Linux build agent configuration:'

scripts/azure-templates-stages.yml

@@ -458,11 +458,11 @@ stages:
               - 3.1.56:
                 displayName: '3.1.56_SIMD'
                 version: 3.1.56
-                features: _wasmeh,simd,st
+                features: _wasmeh,st,simd
               - 3.1.56:
                 displayName: '3.1.56_SIMD_Threading'
                 version: 3.1.56
-                features: _wasmeh,simd,mt
+                features: _wasmeh,mt,simd
 
   - ${{ if ne(parameters.buildPipelineType, 'tests') }}:
     - stage: native

source/SkiaSharp.Views/SkiaSharp.Views.Blazor/Internal/ActionHelper.cs

@@ -1,4 +1,5 @@
-using System;
+#if !NET7_0_OR_GREATER
+using System;
 using System.ComponentModel;
 using Microsoft.JSInterop;
 
@@ -18,3 +19,4 @@ public ActionHelper(Action action)
 		public void Invoke() => action?.Invoke();
 	}
 }
+#endif

source/SkiaSharp.Views/SkiaSharp.Views.Blazor/Internal/DpiWatcherInterop.cs

@@ -1,11 +1,18 @@
-using System;
+using System;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 using Microsoft.JSInterop;
 
+#if NET7_0_OR_GREATER
+using System.Runtime.InteropServices.JavaScript;
+#endif
+
 namespace SkiaSharp.Views.Blazor.Internal
 {
-	internal class DpiWatcherInterop : JSModuleInterop
+	[SupportedOSPlatform("browser")]
+	internal partial class DpiWatcherInterop : JSModuleInterop
 	{
+		private const string ModuleName = "DpiWatcher";
 		private const string JsFilename = "./_content/SkiaSharp.Views.Blazor/DpiWatcher.js";
 		private const string StartSymbol = "DpiWatcher.start";
 		private const string StopSymbol = "DpiWatcher.stop";
@@ -14,9 +21,13 @@ internal class DpiWatcherInterop : JSModuleInterop
 		private static DpiWatcherInterop? instance;
 
 		private event Action<double>? callbacksEvent;
+#if NET7_0_OR_GREATER
+		private readonly Action<double, double> callbackHelper;
+#else
 		private readonly FloatFloatActionHelper callbackHelper;
 
 		private DotNetObjectReference<FloatFloatActionHelper>? callbackReference;
+#endif
 
 		public static async Task<DpiWatcherInterop> ImportAsync(IJSRuntime js, Action<double>? callback = null)
 		{
@@ -31,9 +42,9 @@ public static DpiWatcherInterop Get(IJSRuntime js) =>
 			instance ??= new DpiWatcherInterop(js);
 
 		private DpiWatcherInterop(IJSRuntime js)
-			: base(js, JsFilename)
+			: base(js, ModuleName, JsFilename)
 		{
-			callbackHelper = new FloatFloatActionHelper((o, n) => callbacksEvent?.Invoke(n));
+			callbackHelper = new((o, n) => callbacksEvent?.Invoke((float)n));
 		}
 
 		protected override void OnDisposingModule() =>
@@ -60,21 +71,28 @@ public void Unsubscribe(Action<double> callback)
 				Stop();
 		}
 
+#if NET7_0_OR_GREATER
+		private double Start() =>
+			Start(callbackHelper);
+
+		[JSImport(StartSymbol, ModuleName)]
+		private static partial double Start([JSMarshalAs<JSType.Function<JSType.Number, JSType.Number>>] Action<double, double> callback);
+
+		[JSImport(StopSymbol, ModuleName)]
+		private static partial void Stop();
+
+		[JSImport(GetDpiSymbol, ModuleName)]
+		public static partial double GetDpi();
+#else
 		private double Start()
 		{
-			if (callbackReference != null)
-				return GetDpi();
-
-			callbackReference = DotNetObjectReference.Create(callbackHelper);
+			callbackReference ??= DotNetObjectReference.Create(callbackHelper);
 
 			return Invoke<double>(StartSymbol, callbackReference);
 		}
 
 		private void Stop()
 		{
-			if (callbackReference == null)
-				return;
-
 			Invoke(StopSymbol);
 
 			callbackReference?.Dispose();
@@ -83,5 +101,6 @@ private void Stop()
 
 		public double GetDpi() =>
 			Invoke<double>(GetDpiSymbol);
+#endif
 	}
 }

source/SkiaSharp.Views/SkiaSharp.Views.Blazor/Internal/FloatFloatActionHelper.cs

@@ -1,4 +1,5 @@
-using System;
+#if !NET7_0_OR_GREATER
+using System;
 using System.ComponentModel;
 using Microsoft.JSInterop;
 
@@ -18,3 +19,4 @@ public FloatFloatActionHelper(Action<float, float> action)
 		public void Invoke(float width, float height) => action?.Invoke(width, height);
 	}
 }
+#endif

source/SkiaSharp.Views/SkiaSharp.Views.Blazor/Internal/JSModuleInterop.cs

@@ -1,20 +1,32 @@
 using System;
 using System.Threading.Tasks;
+using System.Runtime.Versioning;
 using Microsoft.JSInterop;
 
+#if NET7_0_OR_GREATER
+using System.Runtime.InteropServices.JavaScript;
+#else
+using JSObject = Microsoft.JSInterop.IJSUnmarshalledObjectReference;
+#endif
+
 namespace SkiaSharp.Views.Blazor.Internal
 {
-	internal class JSModuleInterop : IDisposable
+	[SupportedOSPlatform("browser")]
+	internal partial class JSModuleInterop : IDisposable
 	{
-		private readonly Task<IJSUnmarshalledObjectReference> moduleTask;
-		private IJSUnmarshalledObjectReference? module;
+		private readonly Task<JSObject> moduleTask;
+		private JSObject? module;
 
-		public JSModuleInterop(IJSRuntime js, string filename)
+		public JSModuleInterop(IJSRuntime js, string moduleName, string moduleUrl)
 		{
+#if NET7_0_OR_GREATER
+			moduleTask = JSHost.ImportAsync(moduleName, "/" + moduleUrl);
+#else
 			if (js is not IJSInProcessRuntime)
 				throw new NotSupportedException("SkiaSharp currently only works on Web Assembly.");
 
-			moduleTask = js.InvokeAsync<IJSUnmarshalledObjectReference>("import", filename).AsTask();
+			moduleTask = js.InvokeAsync<JSObject>("import", moduleUrl).AsTask();
+#endif
 		}
 
 		public async Task ImportAsync()
@@ -28,14 +40,16 @@ public void Dispose()
 			Module.Dispose();
 		}
 
-		protected IJSUnmarshalledObjectReference Module =>
+		protected JSObject Module =>
 			module ?? throw new InvalidOperationException("Make sure to run ImportAsync() first.");
 
+#if !NET7_0_OR_GREATER
 		protected void Invoke(string identifier, params object?[]? args) =>
 			Module.InvokeVoid(identifier, args);
 
 		protected TValue Invoke<TValue>(string identifier, params object?[]? args) =>
 			Module.Invoke<TValue>(identifier, args);
+#endif
 
 		protected virtual void OnDisposingModule() { }
 	}

source/SkiaSharp.Views/SkiaSharp.Views.Blazor/Internal/SKHtmlCanvasInterop.cs

@@ -1,13 +1,20 @@
 using System;
 using System.Runtime.InteropServices;
+using System.Runtime.Versioning;
 using System.Threading.Tasks;
 using Microsoft.AspNetCore.Components;
 using Microsoft.JSInterop;
 
+#if NET7_0_OR_GREATER
+using System.Runtime.InteropServices.JavaScript;
+#endif
+
 namespace SkiaSharp.Views.Blazor.Internal
 {
-	internal class SKHtmlCanvasInterop : JSModuleInterop
+	[SupportedOSPlatform("browser")]
+	internal partial class SKHtmlCanvasInterop : JSModuleInterop
 	{
+		private const string ModuleName = "SKHtmlCanvas";
 		private const string JsFilename = "./_content/SkiaSharp.Views.Blazor/SKHtmlCanvas.js";
 		private const string InitGLSymbol = "SKHtmlCanvas.initGL";
 		private const string InitRasterSymbol = "SKHtmlCanvas.initRaster";
@@ -17,9 +24,13 @@ internal class SKHtmlCanvasInterop : JSModuleInterop
 
 		private readonly ElementReference htmlCanvas;
 		private readonly string htmlElementId;
+#if NET7_0_OR_GREATER
+		private readonly Action callbackHelper;
+#else
 		private readonly ActionHelper callbackHelper;
 
 		private DotNetObjectReference<ActionHelper>? callbackReference;
+#endif
 
 		public static async Task<SKHtmlCanvasInterop> ImportAsync(IJSRuntime js, ElementReference element, Action callback)
 		{
@@ -29,30 +40,69 @@ public static async Task<SKHtmlCanvasInterop> ImportAsync(IJSRuntime js, Element
 		}
 
 		public SKHtmlCanvasInterop(IJSRuntime js, ElementReference element, Action renderFrameCallback)
-			: base(js, JsFilename)
+			: base(js, ModuleName, JsFilename)
 		{
 			htmlCanvas = element;
-			htmlElementId = element.Id;
+			htmlElementId = "_bl_" + element.Id;
 
-			callbackHelper = new ActionHelper(renderFrameCallback);
+			callbackHelper = new(renderFrameCallback);
 		}
 
 		protected override void OnDisposingModule() =>
 			Deinit();
 
+#if NET7_0_OR_GREATER
+		public GLInfo InitGL()
+		{
+			Init();
+
+			var obj = InitGL(null, htmlElementId, callbackHelper);
+			var info = new GLInfo(
+				obj.GetPropertyAsInt32("contextId"),
+				(uint)obj.GetPropertyAsInt32("fboId"),
+				obj.GetPropertyAsInt32("stencils"),
+				obj.GetPropertyAsInt32("samples"),
+				obj.GetPropertyAsInt32("depth"));
+			return info;
+		}
+
+		[JSImport(InitGLSymbol, ModuleName)]
+		public static partial JSObject InitGL(JSObject? element, string elementId, [JSMarshalAs<JSType.Function>] Action callback);
+
+		public bool InitRaster()
+		{
+			Init();
+
+			return InitRaster(null, htmlElementId, callbackHelper);
+		}
+
+		[JSImport(InitRasterSymbol, ModuleName)]
+		public static partial bool InitRaster(JSObject? element, string elementId, [JSMarshalAs<JSType.Function>] Action callback);
+
+		public void Deinit() =>
+			Deinit(htmlElementId);
+
+		[JSImport(DeinitSymbol, ModuleName)]
+		public static partial void Deinit(string elementId);
+
+		public void RequestAnimationFrame(bool enableRenderLoop, int rawWidth, int rawHeight) =>
+			RequestAnimationFrame(htmlElementId, enableRenderLoop, rawWidth, rawHeight);
+
+		[JSImport(RequestAnimationFrameSymbol, ModuleName)]
+		public static partial void RequestAnimationFrame(string elementId, bool enableRenderLoop, int rawWidth, int rawHeight);
+
+		public void PutImageData(IntPtr intPtr, SKSizeI rawSize) =>
+			PutImageData(htmlElementId, intPtr, rawSize.Width, rawSize.Height);
+
+		[JSImport(PutImageDataSymbol, ModuleName)]
+		public static partial void PutImageData(string elementId, IntPtr intPtr, int rawWidth, int rawHeight);
+#else
 		public GLInfo InitGL()
 		{
 			if (callbackReference != null)
 				throw new InvalidOperationException("Unable to initialize the same canvas more than once.");
 
-			try
-			{
-				InterceptGLObject();
-			}
-			catch
-			{
-				// no-op
-			}
+			Init();
 
 			callbackReference = DotNetObjectReference.Create(callbackHelper);
 
@@ -64,6 +114,8 @@ public bool InitRaster()
 			if (callbackReference != null)
 				throw new InvalidOperationException("Unable to initialize the same canvas more than once.");
 
+			Init();
+
 			callbackReference = DotNetObjectReference.Create(callbackHelper);
 
 			return Invoke<bool>(InitRasterSymbol, htmlCanvas, htmlElementId, callbackReference);
@@ -80,15 +132,28 @@ public void Deinit()
 		}
 
 		public void RequestAnimationFrame(bool enableRenderLoop, int rawWidth, int rawHeight) =>
-			Invoke(RequestAnimationFrameSymbol, htmlCanvas, enableRenderLoop, rawWidth, rawHeight);
+			Invoke(RequestAnimationFrameSymbol, htmlElementId, enableRenderLoop, rawWidth, rawHeight);
 
 		public void PutImageData(IntPtr intPtr, SKSizeI rawSize) =>
-			Invoke(PutImageDataSymbol, htmlCanvas, intPtr.ToInt64(), rawSize.Width, rawSize.Height);
+			Invoke(PutImageDataSymbol, htmlElementId, intPtr.ToInt64(), rawSize.Width, rawSize.Height);
+#endif
 
 		public record GLInfo(int ContextId, uint FboId, int Stencils, int Samples, int Depth);
 
+		static void Init()
+		{
+			try
+			{
+				InterceptBrowserObjects();
+			}
+			catch
+			{
+				// no-op
+			}
+		}
+
 		// Workaround for https://github.com/dotnet/runtime/issues/76077
 		[DllImport("libSkiaSharp", CallingConvention = CallingConvention.Cdecl)]
-		static extern void InterceptGLObject();
+		static extern void InterceptBrowserObjects();
 	}
 }