Package com.vaadin.flow.router
Interface BeforeLeaveListener
- All Superinterfaces:
BeforeLeaveHandler
,Serializable
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
A listener that may be added to the
UI
using
UI.addBeforeLeaveListener(BeforeLeaveListener)
.
All listeners added this way will be informed when old components are
detached from the UI
.
During this phase there is the possibility to reroute to another navigation target or to postpone the navigation (to for instance get user input).
If a route target is left for reasons not under the control of the navigator
(for instance using
Page.setLocation(URI)
, typing a URL
into the address bar, or closing the browser), listeners are not called.
All BeforeLeaveListeners will be executed before the BeforeLeaveObservers. To
control the order of execution of BeforeLeaveListeners, see
ListenerPriority
- Since:
- 1.0
-
Method Summary
Methods inherited from interface com.vaadin.flow.router.internal.BeforeLeaveHandler
beforeLeave