
Processes a mouse event.
event is a
MouseEvent with source being the receiving element's component.
path is the path of the receiving element in the menu
hierarchy including the receiving element itself.
manager is the
MenuSelectionManager for the menu hierarchy.
This method should process the
MouseEvent and change
the menu selection if necessary
by using
MenuSelectionManager's API
Note: you do not have to forward the event to sub-components.
This is done automatically by the
MenuSelectionManager.