com.vaadin.navigator
Class Navigator.UriFragmentManager

java.lang.Object
  com.vaadin.navigator.Navigator.UriFragmentManager

All Implemented Interfaces:

NavigationStateManager, Page.FragmentChangedListener, java.io.Serializable

Enclosing class:

Navigator

public static class Navigator.UriFragmentManager
extends java.lang.Object
implements NavigationStateManager, Page.FragmentChangedListener

A NavigationStateManager using hashbang fragments in the Page location URI to track views and enable listening to view changes.

A hashbang URI is one where the optional fragment or "hash" part - the part following a # sign - is used to encode navigation state in a web application. The advantage of this is that the fragment can be dynamically manipulated by javascript without causing page reloads.

This class is mostly for internal use by Navigator, and is only public and static to enable testing.

See Also:

Serialized Form

Constructor Summary

Navigator.UriFragmentManager(Page page, Navigator navigator)
Create a new URIFragmentManager and attach it to listen to URI fragment changes of a Page.

Method Summary

void	fragmentChanged(Page.FragmentChangedEvent event)
java.lang.String	getState() Returns the current navigation state including view name and any optional parameters.
void	setState(java.lang.String state) Set the current navigation state in the location URI or similar location, including view name and any optional parameters.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Navigator.UriFragmentManager

public Navigator.UriFragmentManager(Page page,
                                    Navigator navigator)

Create a new URIFragmentManager and attach it to listen to URI fragment changes of a Page.

Parameters:

page - page whose URI fragment to get and modify

navigator - Navigator to notify of fragment changes (using Navigator.navigateTo(String)

Method Detail

getState

public java.lang.String getState()

Description copied from interface: NavigationStateManager

Returns the current navigation state including view name and any optional parameters.

Specified by:

getState in interface NavigationStateManager

Returns:

current view and parameter string, not null

setState

public void setState(java.lang.String state)

Description copied from interface: NavigationStateManager

Set the current navigation state in the location URI or similar location, including view name and any optional parameters.

Specified by:

setState in interface NavigationStateManager

fragmentChanged

public void fragmentChanged(Page.FragmentChangedEvent event)

Specified by:

fragmentChanged in interface Page.FragmentChangedListener