Called when user uses the mouse to interact with a toolbar item.
    mouseAction(event, target, action, id)
    
    
        | event | object, event object | 
    
        | target | object, DOM object | 
    
        | action | string, mouse action, such as enter, leave, up, or down | 
    
        | id | string, ID of the menu item | 
    
 
Returns 
undefined.
Description
This method fires when the user uses the mouse to interact with a toolbar item.