feat: introduce PartialBase type

Author: egil

src/Htmxor/Components/HtmxPartial.cs

@@ -2,34 +2,16 @@
 
 namespace Htmxor.Components;
 
-public sealed class HtmxPartial : IComponent
+public sealed class HtmxPartial : PartialBase
 {
-    private RenderHandle renderHandle;
+    [Parameter] public bool Condition { get; set; } = true;
 
-    [Parameter, EditorRequired]
-    public required RenderFragment ChildContent { get; set; }
-
-    [Parameter]
-    public bool Condition { get; set; } = true;
-
-    public void Attach(RenderHandle renderHandle)
-    {
-        this.renderHandle = renderHandle;
-    }
-
-    public Task SetParametersAsync(ParameterView parameters)
+    public override Task SetParametersAsync(ParameterView parameters)
     {
-        if (!parameters.TryGetValue<RenderFragment>(nameof(ChildContent), out var childContent))
-        {
-            throw new ArgumentException($"{nameof(HtmxPartial)} requires a value for the parameter {nameof(ChildContent)}.");
-        }
-
-        ChildContent = childContent;
         Condition = parameters.GetValueOrDefault(nameof(Condition), true);
-        renderHandle.Render(childContent);
-        return Task.CompletedTask;
+        return base.SetParametersAsync(parameters);
     }
 
-    internal bool ShouldRender() => Condition;
+    protected internal override bool ShouldRender() => Condition;
 }
 

src/Htmxor/Components/PartialBase.cs

@@ -0,0 +1,31 @@
+using Microsoft.AspNetCore.Components;
+
+namespace Htmxor.Components;
+
+public abstract class PartialBase : IComponent
+{
+    private RenderHandle renderHandle;
+
+    [Parameter, EditorRequired]
+    public required RenderFragment ChildContent { get; set; }
+
+    public void Attach(RenderHandle renderHandle)
+    {
+        this.renderHandle = renderHandle;
+    }
+
+    public virtual Task SetParametersAsync(ParameterView parameters)
+    {
+        if (!parameters.TryGetValue<RenderFragment>(nameof(ChildContent), out var childContent))
+        {
+            throw new ArgumentException($"{nameof(HtmxPartial)} requires a value for the parameter {nameof(ChildContent)}.");
+        }
+
+        ChildContent = childContent;
+        renderHandle.Render(childContent);
+        return Task.CompletedTask;
+    }
+
+    protected internal abstract bool ShouldRender();
+}
+

src/Htmxor/Rendering/HtmxorRenderer.HtmlWriting.cs

@@ -515,7 +515,7 @@ private int RenderChildComponent(TextWriter output, ArrayRange<RenderTreeFrame>
     {
         ref var frame = ref frames.Array[position];
 
-        if (frame.Component is not HtmxPartial htmxPartial || htmxPartial.ShouldRender())
+        if (frame.Component is not PartialBase htmxPartial || htmxPartial.ShouldRender())
         {
             RenderChildComponent(output, ref frame);
         }

src/Htmxor/Rendering/HtmxorRenderer.cs

@@ -168,7 +168,7 @@ internal void WriteComponentHtml(int componentId, TextWriter output)
 
             if (frame.FrameType is RenderTreeFrameType.Component)
             {
-                if (frame.Component is HtmxPartial partial)
+                if (frame.Component is PartialBase partial)
                 {
                     if (partial.ShouldRender())
                     {