Actions System + UI (#2710)

Co-authored-by: Vera Aguilera Puerto <6766154+Zumorica@users.noreply.github.com>

Content.Client/UserInterface/ActionMenuItem.cs

@@ -0,0 +1,68 @@
+#nullable enable
+
+using Content.Client.UserInterface.Stylesheets;
+using Content.Shared.Actions;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
+using Robust.Client.Utility;
+
+namespace Content.Client.UserInterface
+{
+    /// <summary>
+    /// An individual action visible in the action menu.
+    /// </summary>
+    public class ActionMenuItem : ContainerButton
+    {
+        // shorter than default tooltip delay so user can
+        // quickly explore what each action is
+        private const float CustomTooltipDelay = 0.2f;
+
+        public BaseActionPrototype Action { get; private set; }
+
+        public ActionMenuItem(BaseActionPrototype action)
+        {
+            Action = action;
+
+            CustomMinimumSize = (64, 64);
+            SizeFlagsVertical = SizeFlags.None;
+
+            AddChild(new TextureRect
+            {
+                SizeFlagsHorizontal = SizeFlags.FillExpand,
+                SizeFlagsVertical = SizeFlags.FillExpand,
+                Stretch = TextureRect.StretchMode.Scale,
+                Texture = action.Icon.Frame0()
+            });
+
+            TooltipDelay = CustomTooltipDelay;
+            TooltipSupplier = SupplyTooltip;
+        }
+
+        private Control SupplyTooltip(Control? sender)
+        {
+            return new ActionAlertTooltip(Action.Name, Action.Description, Action.Requires);
+        }
+
+        /// <summary>
+        /// Change how this is displayed depending on if it is granted or revoked
+        /// </summary>
+        public void SetActionState(bool granted)
+        {
+            if (granted)
+            {
+                if (HasStyleClass(StyleNano.StyleClassActionMenuItemRevoked))
+                {
+                    RemoveStyleClass(StyleNano.StyleClassActionMenuItemRevoked);
+                }
+            }
+            else
+            {
+                if (!HasStyleClass(StyleNano.StyleClassActionMenuItemRevoked))
+                {
+                    AddStyleClass(StyleNano.StyleClassActionMenuItemRevoked);
+                }
+            }
+        }
+
+    }
+}