com.vaadin.flow.router.internal.

java.lang.Object
- com.vaadin.flow.router.internal.AbstractNavigationStateRenderer
- - com.vaadin.flow.router.internal.NavigationStateRenderer

All Implemented Interfaces:

NavigationHandler, Serializable
```
public class NavigationStateRenderer
extends AbstractNavigationStateRenderer
```
Handles navigation events by rendering a contained NavigationState in the target UI.

See Also:

NavigationState, Route, Serialized Form

Constructor Summary

Constructors
Constructor and Description

NavigationStateRenderer(NavigationState navigationState)
Constructs a new NavigationStateRenderer that handles the given navigation state.

Method Summary

All Methods
Modifier and Type	Method and Description
`protected boolean`	`eventActionsSupported()` Checks whether this renderer should reroute or postpone navigation based on results from event listeners.
`protected List<Class<? extends RouterLayout>>`	`getRouterLayoutTypes(Class<? extends Component> targetType, Router router)` Gets the router layout types to show for the given route target type, starting from the parent layout immediately wrapping the route target type.
`protected void`	`notifyNavigationTarget(Component componentInstance, NavigationEvent navigationEvent, BeforeEnterEvent beforeEnterEvent, LocationChangeEvent locationChangeEvent)` Notified the navigation target about the status of the navigation.

Methods inherited from class com.vaadin.flow.router.internal.AbstractNavigationStateRenderer
getNavigationState, handle

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - NavigationStateRenderer
```
public NavigationStateRenderer(NavigationState navigationState)
```
    Constructs a new NavigationStateRenderer that handles the given navigation state.
    
    Parameters:
    
    navigationState - the navigation state handled by this instance
- Method Detail
  - getRouterLayoutTypes
```
protected List<Class<? extends RouterLayout>> getRouterLayoutTypes(Class<? extends Component> targetType,
                                                                   Router router)
```
    Description copied from class: AbstractNavigationStateRenderer
    
    Gets the router layout types to show for the given route target type, starting from the parent layout immediately wrapping the route target type.
    
    Specified by:
    
    getRouterLayoutTypes in class AbstractNavigationStateRenderer
    
    Parameters:
    
    targetType - component type that will be shown
    
    router - used router instance
    
    Returns:
    
    a list of parent RouterLayout types, not null
  - notifyNavigationTarget
```
protected void notifyNavigationTarget(Component componentInstance,
                                      NavigationEvent navigationEvent,
                                      BeforeEnterEvent beforeEnterEvent,
                                      LocationChangeEvent locationChangeEvent)
```
    Description copied from class: AbstractNavigationStateRenderer
    
    Notified the navigation target about the status of the navigation.
    
    Specified by:
    
    notifyNavigationTarget in class AbstractNavigationStateRenderer
    
    Parameters:
    
    componentInstance - the navigation target instance
    
    navigationEvent - the low level navigation event that is being processed
    
    beforeEnterEvent - the before enter event that will be fired unless navigation is rerouted
    
    locationChangeEvent - the location change event that will be fired unless navigation is rerouted
  - eventActionsSupported
```
protected boolean eventActionsSupported()
```
    Description copied from class: AbstractNavigationStateRenderer
    
    Checks whether this renderer should reroute or postpone navigation based on results from event listeners. Furthermore, the before leave event is not fired at all if event actions are not supported.
    
    Specified by:
    
    eventActionsSupported in class AbstractNavigationStateRenderer
    
    Returns:
    
    true to support event actions; false otherwise.

com.vaadin.flow.router.internal.

Class NavigationStateRenderer

Constructor Summary

Method Summary

Methods inherited from class com.vaadin.flow.router.internal.AbstractNavigationStateRenderer

Methods inherited from class java.lang.Object

Constructor Detail

NavigationStateRenderer

Method Detail

getRouterLayoutTypes

notifyNavigationTarget

eventActionsSupported