the event dispatcher to forward from
the event types to forward
helper function that will be called upon a listener has changed
event type
registered or de registered
emitted when the highlight changes
the highlighted data index or -1 for none
emitted a dialog is opened
the opened dialog
emitted a dialog is closed
the closed dialog
the action how the dialog was closed
removes the forwarding declarations
the originated dispatcher
event types to forward
forwards one or more events from a given dispatcher to the current one i.e. when one of the given events is fired in 'from' it will be forwarded to all my listeners