Converting Tests back to C# but still with Playwright

Web/Pages/BuildCalculator/Parts/InputPanelComponent.razor

@@ -0,0 +1,52 @@
+@using Services.Website
+@inject IKeyService KeyService
+
+@inject IDataCollectionService DataCollectionService
+@inject IJSRuntime JsRuntime
+
+
+<div tabindex="0"
+     style="margin: auto;"
+     @onkeydown="HandleKeyDown"
+     @onkeyup="HandleKeyUp"
+     @onkeydown:preventDefault="true"
+     @onkeydown:stopPropagation="true">
+    @ChildContent
+</div>
+
+@code {
+
+    [Parameter] public RenderFragment ChildContent { get; set; } = default!;
+
+    private void HandleKeyDown(KeyboardEventArgs e)
+    {
+        DataCollectionService.SendEvent(
+            DataCollectionKeys.BuildCalcInput,
+            new Dictionary<string, string> { { "key", e.Key.ToLower() }, { "input-source", "keyboard" } }
+        );
+
+        KeyService.AddPressedKey(e.Key);
+    }
+
+    private void HandleKeyUp(KeyboardEventArgs e)
+    {
+        KeyService.RemovePressedKey(e.Key);
+    }
+
+    protected override bool ShouldRender()
+    {
+#if DEBUG
+        JsRuntime.InvokeVoidAsync("console.time", "InputPanelComponent");
+#endif
+
+        return true;
+    }
+
+    protected override void OnAfterRender(bool firstRender)
+    {
+#if DEBUG
+        JsRuntime.InvokeVoidAsync("console.timeEnd", "InputPanelComponent");
+#endif
+    }
+
+}