Called when mouse action needs to be processed.
    mouseAction(action, anchor, nodeId, event, [type])
    
    
        | action | string, can be one of the following ['Enter', 'Leave', 'click'] | 
    
        | anchor | HTML Element, DOM Element | 
    
        | nodeId | string, id of the node | 
    
        | event | Event, Event Object | 
    
        | type | string (optional), who called the element | 
    
 
Returns 
undefined.
Description
This method is used internally to show/hide tooltip on mouse enter or leave for node's icon, handle or badge. You can still overwrite it if you
need to.