Prevent 'Paste Component Values' on MonoBehaviour

Hello there again :)

So I've been fiddling around trying to find a public way to modify this behavior, I couldn't find any. Via reflection, I found out that the method responsible for drawing the Help and Settings context menu, is DrawHeaderHelpAndSettingsGUI in UnityEditor.Editor - If you go to UnityEditor.Editor.DrawHeaderGUI you'll see a call to it there (this is all part of the inspector window OnGUI - It's in UnityEditor.InspectorWindow if you wanna check it out feel free)

If we take a peek inside DrawHeaderHelpAndSettingsGUI we'll see a call to DisplayObjectContextMenu, which in turns calls the internal method Internal_DisplayObjectContextMenu - This is really what we care about.

Using the same injecting techniques in here and here, we can definitely do something about it! - Here's what I did:

1- Created a wrapper for Internal_DisplayObjectContextMenu that won't display context options for certain types:

 public static List<Type> typesToExcludeFromContextMenu = new List<Type>
 {
     typeof(AwesomeColTest)    //, etc
 };

 public static void Internal_DisplayObjectContextMenu(Rect position, Object[] context, int contextUserData)
 {
     if (context.Any(c => typesToExcludeFromContextMenu.Contains(c.GetType())))
         return;

     typeof(EditorUtility)
         .GetMethod(
             "Internal_DisplayObjectContextMenu",
             BindingFlags.Static | BindingFlags.NonPublic,
             null,
             new Type[] { typeof(Rect), typeof(Object[]), typeof(int) },
             null)
         .Invoke(null, new object[] { position, context, contextUserData });
 }

2- redirected the method call to Internal_DisplayObjectContextMenu in DisplayObjectContextMenu to my wrapper:

3- Copy your patched dll to your Editor/Data/Managed folder

4- And that's pretty much it :)

DISCLAIMER: Do this shit on you own responsibility, I'm not responsible for the laws/stuff/etc that might be broken due to this hack. I do this for pure educational reasons.