Minor UI refactor (#11212)

Content.Client/UserInterface/Systems/Atmos/GasTank/GasTankBoundUserInterface.cs

@@ -0,0 +1,51 @@
+using Content.Shared.Atmos.Components;
+using JetBrains.Annotations;
+using Robust.Client.GameObjects;
+
+namespace Content.Client.UserInterface.Systems.Atmos.GasTank
+{
+    [UsedImplicitly]
+    public sealed class GasTankBoundUserInterface
+        : BoundUserInterface
+    {
+        public GasTankBoundUserInterface(ClientUserInterfaceComponent owner, Enum uiKey) :
+            base(owner, uiKey)
+        {
+        }
+
+        private GasTankWindow? _window;
+
+        public void SetOutputPressure(in float value)
+        {
+            SendMessage(new GasTankSetPressureMessage {Pressure = value});
+        }
+
+        public void ToggleInternals()
+        {
+            SendMessage(new GasTankToggleInternalsMessage());
+        }
+
+        protected override void Open()
+        {
+            base.Open();
+            _window = new GasTankWindow(this);
+            _window.OnClose += Close;
+            _window.OpenCentered();
+        }
+
+        protected override void UpdateState(BoundUserInterfaceState state)
+        {
+            base.UpdateState(state);
+
+            if (state is GasTankBoundUserInterfaceState cast)
+                _window?.UpdateState(cast);
+        }
+
+        protected override void Dispose(bool disposing)
+        {
+            base.Dispose(disposing);
+
+            _window?.Close();
+        }
+    }
+}