1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
package com.vaadin.tests.minitutorials.v7b9;
import com.vaadin.annotations.PreserveOnRefresh;
import com.vaadin.navigator.Navigator;
import com.vaadin.server.VaadinRequest;
import com.vaadin.ui.UI;
@PreserveOnRefresh
public class NavigationtestUI extends UI {
Navigator navigator;
String loggedInUser;
@Override
public void init(VaadinRequest request) {
// Create Navigator, make it control the ViewDisplay
navigator = new Navigator(this, this);
// Add some Views
// no fragment for main view
navigator.addView(MainView__LastNavigatorExample.NAME,
new MainView__LastNavigatorExample(navigator));
// #settings
navigator.addView(SettingsView.NAME, new SettingsView(navigator));
// #count will be a new instance each time we navigate to it, counts:
/*
* Commented away from other example // no fragment for main view
* navigator.addView(MainView.NAME, new MainView(navigator));
*
* navigator.addView(CountView.NAME, CountView.class);
*
* // #message adds a label with whatever it receives as a parameter
* navigator.addView(MessageView.NAME, new MessageView());
*
* // #secret works as #message, but you need to be logged in
* navigator.addView(SecretView.NAME, new SecretView());
*
* // #login will navigate to the main view if invoked via this
* mechanism navigator.addView(LoginView.NAME, new LoginView(navigator,
* MainView.NAME));
*
* // we'll handle permissions with a listener here, you could also do
* // that in the View itself. navigator.addViewChangeListener(new
* ViewChangeListener() {
*
* @Override public boolean beforeViewChange(ViewChangeEvent event) { if
* (((NavigationtestUI)UI.getCurrent()).getLoggedInUser() == null) { //
* Show to LoginView instead, pass intended view String
* fragmentAndParameters = event.getViewName(); if
* (event.getParameters() != null) { fragmentAndParameters += "/";
* fragmentAndParameters += event.getParameters(); }
* navigator.getDisplay().showView(new LoginView(navigator,
* fragmentAndParameters)); return false;
*
* } else { return true; } }
*
* @Override public void afterViewChange(ViewChangeEvent event) {
*
* } });
*/
// react to initial fragment, received before we created the Navigator
// This was removed in beta10
// navigator.navigate();
}
public String getLoggedInUser() {
return loggedInUser;
}
public void setLoggedInUser(String user) {
loggedInUser = user;
}
}
|
