|Modifier and Type||Method and Description|
Notification method fired when the user clicks the default back / forward buttons on the navigation bar for this
HandlerRegistration addNavigationClickHandler(NavigationClickHandler handler)
Note that the return value will be ignored and cancelation won't be possible if
notifyAfterNavigationClick has been set
true, since that forces this method to run after we've already navigated to the new pane.
handler- the navigationClick handler
HandlerRegistrationused to remove this handler