Examine verbs + tooltip buttons (#6489)

Content.Shared/Verbs/SharedVerbSystem.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using Content.Shared.ActionBlocker;
+using Content.Shared.Examine;
 using Content.Shared.Hands.Components;
 using Content.Shared.Interaction;
 using Robust.Shared.Containers;
@@ -15,6 +16,7 @@ namespace Content.Shared.Verbs
         [Dependency] private readonly SharedInteractionSystem _interactionSystem = default!;
         [Dependency] private readonly ActionBlockerSystem _actionBlockerSystem = default!;
         [Dependency] protected readonly SharedContainerSystem ContainerSystem = default!;
+        [Dependency] private readonly ExamineSystemShared _examineSystem = default!;
 
         public override void Initialize()
         {
@@ -112,6 +114,13 @@ namespace Content.Shared.Verbs
                 verbs.UnionWith(verbEvent.Verbs);
             }
 
+            if (types.Contains(typeof(ExamineVerb)))
+            {
+                var verbEvent = new GetVerbsEvent<ExamineVerb>(user, target, @using, hands, canInteract, canAccess);
+                RaiseLocalEvent(target, verbEvent);
+                verbs.UnionWith(verbEvent.Verbs);
+            }
+
             // generic verbs
             if (types.Contains(typeof(Verb)))
             {

Content.Shared/Verbs/Verb.cs

@@ -202,6 +202,7 @@ namespace Content.Shared.Verbs
             { typeof(InteractionVerb) },
             { typeof(AlternativeVerb) },
             { typeof(ActivationVerb) },
+            { typeof(ExamineVerb) }
         };
     }
 
@@ -264,4 +265,12 @@ namespace Content.Shared.Verbs
             TextStyleClass = DefaultTextStyleClass;
         }
     }
+
+    [Serializable, NetSerializable]
+    public sealed class ExamineVerb : Verb
+    {
+        public override int TypePriority => 0;
+
+        public bool ShowOnExamineTooltip = true;
+    }
 }

Content.Shared/Verbs/VerbCategory.cs

@@ -34,6 +34,9 @@ namespace Content.Shared.Verbs
         public static readonly VerbCategory Admin =
             new("verb-categories-admin", "/Textures/Interface/character.svg.192dpi.png");
 
+        public static readonly VerbCategory Examine =
+            new("verb-categories-examine", "/Textures/Interface/VerbIcons/examine.svg.192dpi.png");
+
         public static readonly VerbCategory Debug =
             new("verb-categories-debug", "/Textures/Interface/VerbIcons/debug.svg.192dpi.png");