Device Linking and better linking ui (#13645)

Co-authored-by: AJCM-git <60196617+AJCM-git@users.noreply.github.com>
Co-authored-by: Visne <39844191+Visne@users.noreply.github.com>
Co-authored-by: ElectroJr <leonsfriedrich@gmail.com>
Co-authored-by: metalgearsloth <comedian_vs_clown@hotmail.com>

Content.Client/NetworkConfigurator/Systems/NetworkConfiguratorSystem.cs

@@ -1,15 +1,22 @@
 using System.Linq;
 using Content.Client.Actions;
-using Content.Shared.Actions;
+using Content.Client.Items;
+using Content.Client.Message;
+using Content.Client.Stylesheets;
 using Content.Shared.Actions.ActionTypes;
-using Content.Shared.DeviceNetwork;
+using Content.Shared.DeviceNetwork.Components;
+using Content.Shared.DeviceNetwork.Systems;
+using Content.Shared.Input;
 using Robust.Client.Graphics;
+using Robust.Client.Input;
 using Robust.Client.Player;
+using Robust.Client.UserInterface;
+using Robust.Client.UserInterface.Controls;
 using Robust.Shared.Console;
 using Robust.Shared.Prototypes;
-using Robust.Shared.Utility;
+using Robust.Shared.Timing;
 
-namespace Content.Client.NetworkConfigurator;
+namespace Content.Client.NetworkConfigurator.Systems;
 
 public sealed class NetworkConfiguratorSystem : SharedNetworkConfiguratorSystem
 {
@@ -17,6 +24,7 @@ public sealed class NetworkConfiguratorSystem : SharedNetworkConfiguratorSystem
     [Dependency] private readonly IOverlayManager _overlay = default!;
     [Dependency] private readonly IPrototypeManager _prototypeManager = default!;
     [Dependency] private readonly ActionsSystem _actions = default!;
+    [Dependency] private readonly IInputManager _inputManager = default!;
 
     private const string Action = "ClearNetworkLinkOverlays";
 
@@ -25,6 +33,13 @@ public sealed class NetworkConfiguratorSystem : SharedNetworkConfiguratorSystem
         base.Initialize();
 
         SubscribeLocalEvent<ClearAllOverlaysEvent>(_ => ClearAllOverlays());
+        SubscribeLocalEvent<NetworkConfiguratorComponent, ItemStatusCollectMessage>(OnCollectItemStatus);
+    }
+
+    private void OnCollectItemStatus(EntityUid uid, NetworkConfiguratorComponent configurator, ItemStatusCollectMessage args)
+    {
+        _inputManager.TryGetKeyBinding((ContentKeyFunctions.AltUseItemInHand), out var binding);
+        args.Controls.Add(new StatusControl(configurator, binding?.GetKeyString() ?? ""));
     }
 
     public bool ConfiguredListIsTracked(EntityUid uid, NetworkConfiguratorComponent? component = null)
@@ -102,6 +117,41 @@ public sealed class NetworkConfiguratorSystem : SharedNetworkConfiguratorSystem
 
         component.ActiveDeviceList = list;
     }
+
+    private sealed class StatusControl : Control
+    {
+        private readonly RichTextLabel _label;
+        private readonly NetworkConfiguratorComponent _configurator;
+        private readonly string _keyBindingName;
+
+        private bool? _linkModeActive = null;
+
+        public StatusControl(NetworkConfiguratorComponent configurator, string keyBindingName)
+        {
+            _configurator = configurator;
+            _keyBindingName = keyBindingName;
+            _label = new RichTextLabel { StyleClasses = { StyleNano.StyleClassItemStatus } };
+            AddChild(_label);
+        }
+
+        protected override void FrameUpdate(FrameEventArgs args)
+        {
+            base.FrameUpdate(args);
+
+            if (_linkModeActive != null && _linkModeActive == _configurator.LinkModeActive)
+                return;
+
+            _linkModeActive = _configurator.LinkModeActive;
+
+            var modeLocString = _linkModeActive??false
+                ? "network-configurator-examine-mode-link"
+                : "network-configurator-examine-mode-list";
+
+            _label.SetMarkup(Loc.GetString("network-configurator-item-status-label",
+                ("mode", Loc.GetString(modeLocString)),
+                ("keybinding", _keyBindingName)));
+        }
+    }
 }
 
 public sealed class ClearAllNetworkLinkOverlays : IConsoleCommand