Remove some BUI boilerplate (#28399)

* Remove some BUI boilerplate

- The disposals overrides got removed due to the helper method handling it.
- Replace window creation with CreateWindow helper.
- Fixed some stinky code which would cause exceptions.

* More

* moar

* weh

* done

* More BUIs

* More updates

* weh

* moar

* look who it is

* weh

* merge

* weh

* fixes

Content.Client/Kitchen/UI/GrinderMenu.xaml.cs

@@ -12,42 +12,34 @@ namespace Content.Client.Kitchen.UI
     [GenerateTypedNameReferences]
     public sealed partial class GrinderMenu : FancyWindow
     {
-        private readonly IEntityManager _entityManager;
-        private readonly IPrototypeManager _prototypeManager;
-        private readonly ReagentGrinderBoundUserInterface _owner;
+        [Dependency] private readonly IEntityManager _entityManager = default!;
+        [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
 
         private readonly Dictionary<int, EntityUid> _chamberVisualContents = new();
 
-        public GrinderMenu(ReagentGrinderBoundUserInterface owner, IEntityManager entityManager, IPrototypeManager prototypeManager)
+        public event Action? OnToggleAuto;
+        public event Action? OnGrind;
+        public event Action? OnJuice;
+        public event Action? OnEjectAll;
+        public event Action? OnEjectBeaker;
+        public event Action<EntityUid>? OnEjectChamber;
+
+        public GrinderMenu()
         {
             RobustXamlLoader.Load(this);
-            _entityManager = entityManager;
-            _prototypeManager = prototypeManager;
-            _owner = owner;
-            AutoModeButton.OnPressed += owner.ToggleAutoMode;
-            GrindButton.OnPressed += owner.StartGrinding;
-            JuiceButton.OnPressed += owner.StartJuicing;
-            ChamberContentBox.EjectButton.OnPressed += owner.EjectAll;
-            BeakerContentBox.EjectButton.OnPressed += owner.EjectBeaker;
+            IoCManager.InjectDependencies(this);
+            AutoModeButton.OnPressed += _ => OnToggleAuto?.Invoke();
+            GrindButton.OnPressed += _ => OnGrind?.Invoke();
+            JuiceButton.OnPressed += _ => OnJuice?.Invoke();
+            ChamberContentBox.EjectButton.OnPressed += _ => OnEjectAll?.Invoke();
+            BeakerContentBox.EjectButton.OnPressed += _ => OnEjectBeaker?.Invoke();
             ChamberContentBox.BoxContents.OnItemSelected += OnChamberBoxContentsItemSelected;
             BeakerContentBox.BoxContents.SelectMode = ItemList.ItemListSelectMode.None;
         }
 
         private void OnChamberBoxContentsItemSelected(ItemList.ItemListSelectedEventArgs args)
         {
-            _owner.EjectChamberContent(_chamberVisualContents[args.ItemIndex]);
-        }
-
-        protected override void Dispose(bool disposing)
-        {
-            base.Dispose(disposing);
-
-            _chamberVisualContents.Clear();
-            GrindButton.OnPressed -= _owner.StartGrinding;
-            JuiceButton.OnPressed -= _owner.StartJuicing;
-            ChamberContentBox.EjectButton.OnPressed -= _owner.EjectAll;
-            BeakerContentBox.EjectButton.OnPressed -= _owner.EjectBeaker;
-            ChamberContentBox.BoxContents.OnItemSelected -= OnChamberBoxContentsItemSelected;
+            OnEjectChamber?.Invoke(_chamberVisualContents[args.ItemIndex]);
         }
 
         public void UpdateState(ReagentGrinderInterfaceState state)