Item status!

Content.Client/UserInterface/ItemStatusPanel.cs

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+using System.Collections.Generic;
+using Content.Client.GameObjects.Components;
+using Content.Client.Utility;
+using Robust.Client.Graphics.Drawing;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Shared.Interfaces.GameObjects;
+using Robust.Shared.Maths;
+using Robust.Shared.Utility;
+using Robust.Shared.ViewVariables;
+using static Content.Client.StaticIoC;
+
+namespace Content.Client.UserInterface
+{
+    public class ItemStatusPanel : Control
+    {
+        [ViewVariables]
+        private readonly List<(IItemStatus, Control)> _activeStatusComponents = new List<(IItemStatus, Control)>();
+
+        [ViewVariables]
+        private readonly Label _itemNameLabel;
+        [ViewVariables]
+        private readonly VBoxContainer _statusContents;
+        [ViewVariables]
+        private readonly PanelContainer _panel;
+
+        [ViewVariables]
+        private IEntity _entity;
+
+        public ItemStatusPanel(bool isRightHand)
+        {
+            // isRightHand means on the LEFT of the screen.
+            // Keep that in mind.
+            var panel = new StyleBoxTexture
+            {
+                Texture = ResC.GetTexture(isRightHand
+                    ? "/Nano/item_status_right.svg.96dpi.png"
+                    : "/Nano/item_status_left.svg.96dpi.png")
+            };
+            panel.SetContentMarginOverride(StyleBox.Margin.Vertical, 4);
+            panel.SetContentMarginOverride(StyleBox.Margin.Horizontal, 6);
+            panel.SetPatchMargin((isRightHand ? StyleBox.Margin.Left : StyleBox.Margin.Right) | StyleBox.Margin.Top,
+                13);
+
+            AddChild(_panel = new PanelContainer
+            {
+                PanelOverride = panel,
+                ModulateSelfOverride = Color.White.WithAlpha(0.9f),
+                Children =
+                {
+                    new VBoxContainer
+                    {
+                        SeparationOverride = 0,
+                        Children =
+                        {
+                            (_statusContents = new VBoxContainer()),
+                            (_itemNameLabel = new Label
+                            {
+                                ClipText = true,
+                                StyleClasses = {NanoStyle.StyleClassItemStatus}
+                            })
+                        }
+                    }
+                }
+            });
+            SizeFlagsVertical = SizeFlags.ShrinkEnd;
+        }
+
+        public void Update(IEntity entity)
+        {
+            if (entity == null)
+            {
+                ClearOldStatus();
+                _entity = null;
+                _panel.Visible = false;
+                return;
+            }
+
+            if (entity != _entity)
+            {
+                _entity = entity;
+                BuildNewEntityStatus();
+            }
+
+            _panel.Visible = true;
+            _itemNameLabel.Text = entity.Name;
+        }
+
+        private void ClearOldStatus()
+        {
+            _statusContents.RemoveAllChildren();
+
+            foreach (var (itemStatus, control) in _activeStatusComponents)
+            {
+                itemStatus.DestroyControl(control);
+            }
+
+            _activeStatusComponents.Clear();
+        }
+
+        private void BuildNewEntityStatus()
+        {
+            DebugTools.AssertNotNull(_entity);
+
+            ClearOldStatus();
+
+            foreach (var statusComponent in _entity.GetAllComponents<IItemStatus>())
+            {
+                var control = statusComponent.MakeControl();
+                _statusContents.AddChild(control);
+
+                _activeStatusComponents.Add((statusComponent, control));
+            }
+        }
+
+        protected override Vector2 CalculateMinimumSize()
+        {
+            return Vector2.ComponentMax(base.CalculateMinimumSize(), (150, 00));
+        }
+    }
+}