Fix BlazorWebView based controls in WinForms designer by using some s…

…ort of abtsractoin

FrEee.UI.Blazor/WebExtensions.cs

@@ -4,6 +4,7 @@
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace FrEee.UI.Blazor
 {

FrEee.UI.WinForms/Controls/BlazorControl.cs

@@ -7,6 +7,7 @@
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows.Forms;
+using FrEee.UI.WinForms.Utility.Extensions;
 using Microsoft.AspNetCore.Components;
 using Microsoft.AspNetCore.Components.WebView.WindowsForms;
 using Microsoft.Extensions.DependencyInjection;
@@ -27,13 +28,10 @@ public BlazorControl()
 			// set up Blazor
 			try
 			{
-				var services = new ServiceCollection();
-				services.AddWindowsFormsBlazorWebView();
 				var parameters = new Dictionary<string, object?> { ["VM"] = VM };
 				var blazorView = new BlazorWebView
 				{
 					HostPage = "index.html",
-					Services = services.BuildServiceProvider(),
 					Padding = new(0),
 					Margin = new(0),
 					Dock = DockStyle.Fill,
@@ -44,14 +42,15 @@ public BlazorControl()
 					Text = "blazorWebView1",
 					AutoScroll = false
 				};
+				blazorView.InitializeServices(); // the code in this method can't go here directly because it crashes th eWinForms designer
 				blazorView.RootComponents.Add(new RootComponent("#app", BlazorComponentType, parameters));
 				Controls.Add(blazorView);
 			}
 			catch
 			{
 				// Blazor could not be loaded, display a dummy label
 				VM = new();
-				Controls.Add(new Label { Text = "Blazor Control"});
+				Controls.Add(new Label { Text = Name, Dock = DockStyle.Fill });
 			}
 
 			ResumeLayout(false);
@@ -66,5 +65,11 @@ public BlazorControl()
 		/// The view model for this Blazor control. Should be overridden.
 		/// </summary>
 		protected virtual object VM { get; } = new();
+
+		/// <summary>
+		/// Initializes services for this Blazor control's web view. Should be overridden.
+		/// </summary>
+		/// <param name="blazorView">The web view.</param>
+		protected virtual void InitializeServices(BlazorWebView blazorView) { }
 	}
 }

FrEee.UI.WinForms/Controls/BlazorControl.resx

@@ -0,0 +1,120 @@
+<?xml version="1.0" encoding="utf-8"?>
+<root>
+  <!-- 
+    Microsoft ResX Schema 
+    
+    Version 2.0
+    
+    The primary goals of this format is to allow a simple XML format 
+    that is mostly human readable. The generation and parsing of the 
+    various data types are done through the TypeConverter classes 
+    associated with the data types.
+    
+    Example:
+    
+    ... ado.net/XML headers & schema ...
+    <resheader name="resmimetype">text/microsoft-resx</resheader>
+    <resheader name="version">2.0</resheader>
+    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
+    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
+    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
+    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
+    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
+        <value>[base64 mime encoded serialized .NET Framework object]</value>
+    </data>
+    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
+        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
+        <comment>This is a comment</comment>
+    </data>
+                
+    There are any number of "resheader" rows that contain simple 
+    name/value pairs.
+    
+    Each data row contains a name, and value. The row also contains a 
+    type or mimetype. Type corresponds to a .NET class that support 
+    text/value conversion through the TypeConverter architecture. 
+    Classes that don't support this are serialized and stored with the 
+    mimetype set.
+    
+    The mimetype is used for serialized objects, and tells the 
+    ResXResourceReader how to depersist the object. This is currently not 
+    extensible. For a given mimetype the value must be set accordingly:
+    
+    Note - application/x-microsoft.net.object.binary.base64 is the format 
+    that the ResXResourceWriter will generate, however the reader can 
+    read any of the formats listed below.
+    
+    mimetype: application/x-microsoft.net.object.binary.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
+            : and then encoded with base64 encoding.
+    
+    mimetype: application/x-microsoft.net.object.soap.base64
+    value   : The object must be serialized with 
+            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
+            : and then encoded with base64 encoding.
+
+    mimetype: application/x-microsoft.net.object.bytearray.base64
+    value   : The object must be serialized into a byte array 
+            : using a System.ComponentModel.TypeConverter
+            : and then encoded with base64 encoding.
+    -->
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

FrEee.UI.WinForms/Utility/Extensions/GuiExtensions.cs

@@ -5,6 +5,8 @@
 using System.Drawing;
 using System.Linq;
 using System.Windows.Forms;
+using Microsoft.AspNetCore.Components.WebView.WindowsForms;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace FrEee.UI.WinForms.Utility.Extensions;
 
@@ -298,4 +300,15 @@ private static void escapeKeyHandler(object sender, KeyEventArgs e)
 			form.Close();
 		}
 	}
+
+	/// <summary>
+	/// Initializes the services required to run a Blazor web view.
+	/// </summary>
+	/// <param name="blazorView">The Blazor web view.</param>
+	public static void InitializeServices(this BlazorWebView blazorView)
+	{
+		var services = new ServiceCollection();
+		services.AddWindowsFormsBlazorWebView();
+		blazorView.Services = services.BuildServiceProvider();
+	}
 }