Overhaul workspace UX for denser play workflow

RpgRoller/Components/Pages/HomeControls/CampaignLogPanel.razor.cs

@@ -1,5 +1,6 @@
 using System.Diagnostics.CodeAnalysis;
 using Microsoft.AspNetCore.Components;
+using Microsoft.JSInterop;
 using RpgRoller.Contracts;
 
 namespace RpgRoller.Components.Pages.HomeControls;
@@ -7,6 +8,37 @@ namespace RpgRoller.Components.Pages.HomeControls;
 [ExcludeFromCodeCoverage]
 public partial class CampaignLogPanel
 {
+    protected override async Task OnAfterRenderAsync(bool firstRender)
+    {
+        if (IsCampaignDataLoading || CampaignLog.Count == 0)
+        {
+            LastRenderedLogCount = CampaignLog.Count;
+            return;
+        }
+
+        if (firstRender || CampaignLog.Count > LastRenderedLogCount)
+        {
+            try
+            {
+                await JS.InvokeVoidAsync("rpgRollerApi.scrollElementToBottom", LogPanelRef);
+            }
+            catch (JSDisconnectedException)
+            {
+            }
+            catch (InvalidOperationException ex) when (ex.Message.Contains("statically rendered", StringComparison.OrdinalIgnoreCase))
+            {
+            }
+        }
+
+        LastRenderedLogCount = CampaignLog.Count;
+    }
+
+    [Inject]
+    private IJSRuntime JS { get; set; } = null!;
+
+    private ElementReference LogPanelRef { get; set; }
+    private int LastRenderedLogCount { get; set; }
+
     [Parameter]
     public bool IsCampaignDataLoading { get; set; }
 
@@ -30,4 +62,4 @@ public partial class CampaignLogPanel
 
     [Parameter]
     public Func<CampaignLogEntry, string> VisibilityBadgeCssClass { get; set; } = _ => string.Empty;
-}
+}