Fix Admin Object tab sorting and search (#28609)

Content.Client/Administration/UI/Tabs/ObjectsTab/ObjectsTabHeader.xaml.cs

@@ -0,0 +1,86 @@
+using Robust.Client.AutoGenerated;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.UserInterface.XAML;
+using Robust.Shared.Input;
+
+namespace Content.Client.Administration.UI.Tabs.ObjectsTab
+{
+    [GenerateTypedNameReferences]
+    public sealed partial class ObjectsTabHeader : Control
+    {
+        public event Action<Header>? OnHeaderClicked;
+
+        private const string ArrowUp = "↑";
+        private const string ArrowDown = "↓";
+
+        public ObjectsTabHeader()
+        {
+            RobustXamlLoader.Load(this);
+
+            ObjectNameLabel.OnKeyBindDown += ObjectNameClicked;
+            EntityIDLabel.OnKeyBindDown += EntityIDClicked;
+        }
+
+        public Label GetHeader(Header header)
+        {
+            return header switch
+            {
+                Header.ObjectName => ObjectNameLabel,
+                Header.EntityID => EntityIDLabel,
+                _ => throw new ArgumentOutOfRangeException(nameof(header), header, null)
+            };
+        }
+
+        public void ResetHeaderText()
+        {
+            ObjectNameLabel.Text = Loc.GetString("object-tab-object-name");
+            EntityIDLabel.Text = Loc.GetString("object-tab-entity-id");
+        }
+
+        public void UpdateHeaderSymbols(Header headerClicked, bool ascending)
+        {
+            ResetHeaderText();
+            var arrow = ascending ? ArrowUp : ArrowDown;
+            GetHeader(headerClicked).Text += $" {arrow}";
+        }
+
+        private void HeaderClicked(GUIBoundKeyEventArgs args, Header header)
+        {
+            if (args.Function != EngineKeyFunctions.UIClick)
+            {
+                return;
+            }
+
+            OnHeaderClicked?.Invoke(header);
+            args.Handle();
+        }
+
+        private void ObjectNameClicked(GUIBoundKeyEventArgs args)
+        {
+            HeaderClicked(args, Header.ObjectName);
+        }
+
+        private void EntityIDClicked(GUIBoundKeyEventArgs args)
+        {
+            HeaderClicked(args, Header.EntityID);
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+
+            if (disposing)
+            {
+                ObjectNameLabel.OnKeyBindDown -= ObjectNameClicked;
+                EntityIDLabel.OnKeyBindDown -= EntityIDClicked;
+            }
+        }
+
+        public enum Header
+        {
+            ObjectName,
+            EntityID
+        }
+    }
+}