ProtectedcurrentProtectedisProtected ReadonlyonProtected ReadonlytoProtected ReadonlywidgetDispose this object.
Forgets the current tab-bar so that the next check reports it again as
(undefined, currentTabBar). Listeners on the enclosing panel stay connected.
Detects when a widget is moved between the tab-bars of its enclosing DockPanel and notifies a callback with the previous and current tab-bar. Call check from the host widget's
onAfterAttach.