Editor middle click detects Event.current.button as both 0 and 2

Unity Engine
1

Hi, in the following code in the editor:

        if (nameRect.Contains(Event.current.mousePosition))
        {

            if (Event.current.button == 2)
            {
                Debug.Log("pressed " + Event.current.button);
            }
            if (Event.current.button == 0)
            {
                EditorGUIUtility.ShowObjectPicker<Object>(null, true, "", 3);
                Debug.Log("pressed " + Event.current.button);
            }
}

It detects middle click first, but if I leave the mouse over the Rect, it then detects left click as well (which I never do, of course). I could not find any info on similar problems online, does anyone know what can be happening here? Thanks in advance!

2

OK, so I found a solution accidentally. I do not understand why it works the way it does, but I’d be happy if someone explained. Here’s the code that now works as intended:

        Event e = Event.current;
        if (e.button == 0 && e.isMouse)
        {
            Debug.Log("pressed " + e.button);
        }
        else if (e.button == 1)
        {
            EditorGUIUtility.ShowObjectPicker<Object>(null, true, "", 3);
            Debug.Log("pressed " + e.button);
        }

First, it won’t work properly if you don’t use Event e = Event.current;
Second, it won’t work properly if you don’t check e.isMouse
Finally, it won’t work properly if you first check e.button == 1 and then e.button == 0, like so:

        Event e = Event.current;
        if (e.button == 1 && e.isMouse)
        {
            Debug.Log("pressed " + e.button);
        }
        else if (e.button == 0)
        {
            EditorGUIUtility.ShowObjectPicker<Object>(null, true, "", 3);
            Debug.Log("pressed " + e.button);
        }

I have no idea what’s going on here…