Hud refactor (#7202)

Co-authored-by: DrSmugleaf <DrSmugleaf@users.noreply.github.com>
Co-authored-by: Jezithyr <jmaster9999@gmail.com>
Co-authored-by: Jezithyr <Jezithyr@gmail.com>
Co-authored-by: Visne <39844191+Visne@users.noreply.github.com>
Co-authored-by: wrexbe <wrexbe@protonmail.com>
Co-authored-by: wrexbe <81056464+wrexbe@users.noreply.github.com>

Content.Client/UserInterface/Systems/Actions/Controls/ActionButtonContainer.cs

@@ -0,0 +1,94 @@
+using Content.Shared.Actions.ActionTypes;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+
+namespace Content.Client.UserInterface.Systems.Actions.Controls;
+
+[Virtual]
+public class ActionButtonContainer : GridContainer
+{
+    [Dependency] private readonly IEntityManager _entityManager = default!;
+
+    public event Action<GUIBoundKeyEventArgs, ActionButton>? ActionPressed;
+    public event Action<GUIBoundKeyEventArgs, ActionButton>? ActionUnpressed;
+    public event Action<ActionButton>? ActionFocusExited;
+
+    public ActionButtonContainer()
+    {
+        IoCManager.InjectDependencies(this);
+        UserInterfaceManager.GetUIController<ActionUIController>().RegisterActionContainer(this);
+    }
+
+    public ActionButton this[int index]
+    {
+        get => (ActionButton) GetChild(index);
+        set
+        {
+            AddChild(value);
+            value.SetPositionInParent(index);
+            value.ActionPressed += ActionPressed;
+            value.ActionUnpressed += ActionUnpressed;
+            value.ActionFocusExited += ActionFocusExited;
+        }
+    }
+
+    public void SetActionData(params ActionType?[] actionTypes)
+    {
+        ClearActionData();
+
+        for (var i = 0; i < actionTypes.Length; i++)
+        {
+            var action = actionTypes[i];
+            if (action == null)
+                continue;
+
+            ((ActionButton) GetChild(i)).UpdateData(_entityManager, action);
+        }
+    }
+
+    public void ClearActionData()
+    {
+        foreach (var button in Children)
+        {
+            ((ActionButton) button).ClearData();
+        }
+    }
+
+    protected override void ChildAdded(Control newChild)
+    {
+        base.ChildAdded(newChild);
+
+        if (newChild is not ActionButton button)
+            return;
+
+        button.ActionPressed += ActionPressed;
+        button.ActionUnpressed += ActionUnpressed;
+        button.ActionFocusExited += ActionFocusExited;
+    }
+
+    public bool TryGetButtonIndex(ActionButton button, out int position)
+    {
+        if (button.Parent != this)
+        {
+            position = 0;
+            return false;
+        }
+
+        position = button.GetPositionInParent();
+        return true;
+    }
+
+    public IEnumerable<ActionButton> GetButtons()
+    {
+        foreach (var control in Children)
+        {
+            if (control is ActionButton button)
+                yield return button;
+        }
+    }
+
+    ~ActionButtonContainer()
+    {
+        UserInterfaceManager.GetUIController<ActionUIController>().RemoveActionContainer();
+    }
+}