Convert almost all IActivate instances that open UIs to ActivatableUI (#7028)

* Chem master

* Drone support for handhelds

* Vending machines, scanners

* Cloners, R&D computers

* make research a little less sussy

* Unfuck wires

* PA control computer

* Unfuck merge

* Clean up git gore for good

* Disposals

* Microwaves

* paper

* Magic mirror

* More vendors for drones

* Solar computer whitelist

* EFR review updates

Content.Server/Paper/PaperComponent.cs

@@ -5,25 +5,20 @@ using Content.Shared.Interaction;
 using Content.Shared.Paper;
 using Content.Shared.Tag;
 using Robust.Server.GameObjects;
-using Robust.Shared.GameObjects;
-using Robust.Shared.IoC;
-using Robust.Shared.Localization;
-using Robust.Shared.Serialization.Manager.Attributes;
+
 using Robust.Shared.Utility;
-using Robust.Shared.ViewVariables;
 
 namespace Content.Server.Paper
 {
     [RegisterComponent]
 #pragma warning disable 618
     [ComponentReference(typeof(SharedPaperComponent))]
-    [ComponentReference(typeof(IActivate))]
-    public sealed class PaperComponent : SharedPaperComponent, IExamine, IInteractUsing, IActivate
+    public sealed class PaperComponent : SharedPaperComponent, IExamine, IInteractUsing
 #pragma warning restore 618
     {
         [Dependency] private readonly IEntityManager _entMan = default!;
 
-        private PaperAction _mode;
+        public PaperAction Mode;
         [DataField("content")]
         public string Content { get; set; } = "";
 
@@ -42,7 +37,7 @@ namespace Content.Server.Paper
                 UserInterface.OnReceiveMessage += OnUiReceiveMessage;
             }
 
-            _mode = PaperAction.Read;
+            Mode = PaperAction.Read;
             UpdateUserInterface();
         }
 
@@ -62,9 +57,9 @@ namespace Content.Server.Paper
             appearance.SetData(PaperVisuals.Status, status);
         }
 
-        private void UpdateUserInterface()
+        public void UpdateUserInterface()
         {
-            UserInterface?.SetState(new PaperBoundUserInterfaceState(Content, _mode));
+            UserInterface?.SetState(new PaperBoundUserInterfaceState(Content, Mode));
         }
 
         public void Examine(FormattedMessage message, bool inDetailsRange)
@@ -81,17 +76,6 @@ namespace Content.Server.Paper
             );
         }
 
-        void IActivate.Activate(ActivateEventArgs eventArgs)
-        {
-            if (!_entMan.TryGetComponent(eventArgs.User, out ActorComponent? actor))
-                return;
-
-            _mode = PaperAction.Read;
-            UpdateUserInterface();
-            UserInterface?.Toggle(actor.PlayerSession);
-            return;
-        }
-
         private void OnUiReceiveMessage(ServerBoundUserInterfaceMessage obj)
         {
             var msg = (PaperInputText) obj.Message;
@@ -118,7 +102,7 @@ namespace Content.Server.Paper
             if (!_entMan.TryGetComponent(eventArgs.User, out ActorComponent? actor))
                 return false;
 
-            _mode = PaperAction.Write;
+            Mode = PaperAction.Write;
             UpdateUserInterface();
             UserInterface?.Open(actor.PlayerSession);
             return true;

Content.Server/Paper/PaperSystem.cs

@@ -0,0 +1,20 @@
+using Content.Server.UserInterface;
+using Content.Shared.Paper;
+
+namespace Content.Server.Paper
+{
+    public sealed class PaperSystem : EntitySystem
+    {
+        public override void Initialize()
+        {
+            base.Initialize();
+            SubscribeLocalEvent<PaperComponent, BeforeActivatableUIOpenEvent>(AfterUIOpen);
+        }
+
+        private void AfterUIOpen(EntityUid uid, PaperComponent component, BeforeActivatableUIOpenEvent args)
+        {
+            component.Mode = SharedPaperComponent.PaperAction.Read;
+            component.UpdateUserInterface();
+        }
+    }
+}