Merge "Updated some tutorials"

14 files changed, 523 insertions, 20 deletions

diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/AutoGeneratingForm.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/AutoGeneratingForm.java
index 53d76a251f..e904525ef0 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/AutoGeneratingForm.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/AutoGeneratingForm.java
@@ -46,7 +46,7 @@ public class AutoGeneratingForm extends UI {
         fieldGroup.setItemDataSource(new BeanItem<Person>(new Person("John",
                 "Doe", 34)));
 
-        // Loop through the properties, build fields for them and add the fields
+        // Loop through the properties, build fields for them and add the fields 
         // to this root
         for (Object propertyId : fieldGroup.getUnboundPropertyIds()) {
             layout.addComponent(fieldGroup.buildAndBind(propertyId));
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/DifferentFeaturesForDifferentClients.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/DifferentFeaturesForDifferentClients.java
index 6a713c4f64..7833419e59 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/DifferentFeaturesForDifferentClients.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/DifferentFeaturesForDifferentClients.java
@@ -38,9 +38,9 @@ public class DifferentFeaturesForDifferentClients extends UIProvider {
     public Class<? extends UI> getUIClass(UIClassSelectionEvent event) {
         // could also use browser version etc.
         if (event.getRequest().getHeader("user-agent").contains("mobile")) {
-            return TouchRoot.class;
+            return TouchUI.class;
         } else {
-            return DefaultRoot.class;
+            return DefaultUI.class;
         }
     }
 
@@ -56,17 +56,17 @@ public class DifferentFeaturesForDifferentClients extends UIProvider {
     }
 }
 
-class DefaultRoot extends UI {
+class DefaultUI extends UI {
     @Override
     protected void init(VaadinRequest request) {
         setContent(new Label("This browser does not support touch events"));
     }
 }
 
-class TouchRoot extends UI {
+class TouchUI extends UI {
     @Override
     protected void init(VaadinRequest request) {
-        WebBrowser webBrowser = getSession().getBrowser();
+        WebBrowser webBrowser = getPage().getWebBrowser();
         String screenSize = "" + webBrowser.getScreenWidth() + "x"
                 + webBrowser.getScreenHeight();
         setContent(new Label("Using a touch enabled device with screen size"
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/FindCurrentUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/FindCurrentUI.java
index 858f202e6d..d277c4f095 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/FindCurrentUI.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/FindCurrentUI.java
@@ -37,7 +37,7 @@ public class FindCurrentUI extends UI {
     @Override
     protected void init(VaadinRequest request) {
         Button helloButton = new Button("Say Hello");
-        helloButton.addListener(new ClickListener() {
+        helloButton.addClickListener(new ClickListener() {
             @Override
             public void buttonClick(ClickEvent event) {
                 String msg = "Running in ";
@@ -47,7 +47,7 @@ public class FindCurrentUI extends UI {
             }
         });
 
-        helloButton.addListener(new ClickListener() {
+        helloButton.addClickListener(new ClickListener() {
             @Override
             public void buttonClick(ClickEvent event) {
                 Notification.show("This UI is "
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingXyzWhenInitializing.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingXyzWhenInitializing.java
index 6cf0514df4..dfc39d3ea9 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingXyzWhenInitializing.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingXyzWhenInitializing.java
@@ -17,6 +17,7 @@
 package com.vaadin.tests.minitutorials.v7a1;
 
 import com.vaadin.server.VaadinRequest;
+import com.vaadin.server.WebBrowser;
 import com.vaadin.ui.Label;
 import com.vaadin.ui.UI;
 import com.vaadin.ui.VerticalLayout;
@@ -51,18 +52,18 @@ public class UsingXyzWhenInitializing extends UI {
             layout.addComponent(new Label("Welcome to my application"));
         }
 
-        // WebBrowser browser = request.getBrowserDetails().getWebBrowser();
-        // String resolution = "Your browser window on startup was "
-        // + browser.getClientWidth() + "x" + browser.getClientHeight();
-        // if (browser.getClientWidth() > 1024) {
-        // getContent().addComponent(
-        // new Label("The is the large version of the application. "
-        // + resolution));
-        // } else {
-        // getContent().addComponent(
-        // new Label("This is the small version of the application. "
-        // + resolution));
-        // }
+        WebBrowser browser = getPage().getWebBrowser();
+        String resolution = "Your browser window on startup was "
+                + browser.getScreenWidth() + "x" + browser.getScreenHeight();
+        if (browser.getScreenWidth() > 1024) {
+            layout.addComponent(new Label(
+                    "The is the large version of the application. "
+                            + resolution));
+        } else {
+            layout.addComponent(new Label(
+                    "This is the small version of the application. "
+                            + resolution));
+        }
     }
 
 }
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/CountView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/CountView.java
new file mode 100644
index 0000000000..6e4b2d790d
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/CountView.java
@@ -0,0 +1,21 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.ui.Label;

+import com.vaadin.ui.Panel;

+

+public class CountView extends Panel implements View {

+    public static final String NAME = "count";

+

+    private static int count = 1;

+

+    public CountView() {

+        setContent(new Label("Created: " + count++));

+    }

+

+    public void enter(ViewChangeEvent event) {

+

+    }

+

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/LoginView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/LoginView.java
new file mode 100644
index 0000000000..a0cb6bacba
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/LoginView.java
@@ -0,0 +1,52 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.Navigator;

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.ui.Button;

+import com.vaadin.ui.Button.ClickEvent;

+import com.vaadin.ui.Layout;

+import com.vaadin.ui.Notification;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.PasswordField;

+import com.vaadin.ui.TextField;

+import com.vaadin.ui.UI;

+import com.vaadin.ui.VerticalLayout;

+

+public class LoginView extends Panel implements View {

+

+    public static final String NAME = "login";

+

+    public LoginView(final Navigator navigator,

+            final String fragmentAndParameters) {

+        Layout layout = new VerticalLayout();

+

+        final TextField email = new TextField("Email");

+        layout.addComponent(email);

+

+        final PasswordField password = new PasswordField("Password");

+        layout.addComponent(password);

+

+        final Button login = new Button("Login", new Button.ClickListener() {

+            public void buttonClick(ClickEvent event) {

+                Notification.show("Ok, let's pretend you're " + email);

+

+                // indicate the user is logged in

+                ((NavigationtestUI) UI.getCurrent()).setLoggedInUser(email

+                        .getValue());

+

+                // navigate back to the intended place

+                navigator.navigateTo(fragmentAndParameters);

+            }

+        });

+        layout.addComponent(login);

+        setContent(layout);

+

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+        // TODO Auto-generated method stub

+

+    }

+}

diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView.java
new file mode 100644
index 0000000000..c08803e549
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView.java
@@ -0,0 +1,61 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.Navigator;

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.server.ExternalResource;

+import com.vaadin.ui.Button;

+import com.vaadin.ui.Button.ClickEvent;

+import com.vaadin.ui.Link;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.UI;

+import com.vaadin.ui.VerticalLayout;

+

+public class MainView extends Panel implements View {

+

+    public static final String NAME = "";

+

+    private Button logOut;

+

+    public MainView(final Navigator navigator) {

+

+        VerticalLayout layout = new VerticalLayout();

+

+        Link lnk = new Link("Count",

+                new ExternalResource("#!" + CountView.NAME));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Message: Hello", new ExternalResource("#!"

+                + MessageView.NAME + "/Hello"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Message: Bye", new ExternalResource("#!"

+                + MessageView.NAME + "/Bye/Goodbye"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Private message: Secret", new ExternalResource("#!"

+                + SecretView.NAME + "/Secret"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Private message: Topsecret", new ExternalResource("#!"

+                + SecretView.NAME + "/Topsecret"));

+        layout.addComponent(lnk);

+

+        logOut = new Button("Logout", new Button.ClickListener() {

+            public void buttonClick(ClickEvent event) {

+

+                ((NavigationtestUI) UI.getCurrent()).setLoggedInUser(null);

+                logOut.setCaption("Login");

+                navigator.navigateTo(LoginView.NAME);

+

+            }

+        });

+        layout.addComponent(logOut);

+        setContent(layout);

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+

+    }

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainViewEarlierExample.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainViewEarlierExample.java
new file mode 100644
index 0000000000..55b936f144
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainViewEarlierExample.java
@@ -0,0 +1,60 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.server.ExternalResource;

+import com.vaadin.ui.Button;

+import com.vaadin.ui.Button.ClickEvent;

+import com.vaadin.ui.Link;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.UI;

+import com.vaadin.ui.VerticalLayout;

+

+public class MainViewEarlierExample extends Panel implements View {

+

+    public static final String NAME = "";

+

+    public MainViewEarlierExample() {

+

+        VerticalLayout layout = new VerticalLayout();

+

+        Link lnk = new Link("Count",

+                new ExternalResource("#!" + CountView.NAME));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Message: Hello", new ExternalResource("#!"

+                + MessageView.NAME + "/Hello"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Message: Bye", new ExternalResource("#!"

+                + MessageView.NAME + "/Bye/Goodbye"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Private message: Secret", new ExternalResource("#!"

+                + SecretView.NAME + "/Secret"));

+        layout.addComponent(lnk);

+

+        lnk = new Link("Private message: Topsecret", new ExternalResource("#!"

+                + SecretView.NAME + "/Topsecret"));

+        layout.addComponent(lnk);

+

+        // login/logout toggle so we can test this

+        Button logInOut = new Button("Toggle login",

+                new Button.ClickListener() {

+                    public void buttonClick(ClickEvent event) {

+                        Object user = ((NavigationtestUI) UI.getCurrent())

+                                .getLoggedInUser();

+                        ((NavigationtestUI) UI.getCurrent())

+                                .setLoggedInUser(user == null ? "Smee" : null);

+                    }

+                });

+        layout.addComponent(logInOut);

+        setContent(layout);

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+

+    }

+

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView__LastNavigatorExample.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView__LastNavigatorExample.java
new file mode 100644
index 0000000000..91d495cb24
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MainView__LastNavigatorExample.java
@@ -0,0 +1,29 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.Navigator;

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.server.ExternalResource;

+import com.vaadin.ui.Link;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.VerticalLayout;

+

+public class MainView__LastNavigatorExample extends Panel implements View {

+

+    public static final String NAME = "";

+

+    public MainView__LastNavigatorExample(final Navigator navigator) {

+

+        Link lnk = new Link("Settings", new ExternalResource("#!"

+                + SettingsView.NAME));

+        VerticalLayout vl = new VerticalLayout();

+        vl.addComponent(lnk);

+        setContent(vl);

+

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+

+    }

+}

diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/MessageView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MessageView.java
new file mode 100644
index 0000000000..fbb28b6f4a
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/MessageView.java
@@ -0,0 +1,29 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.ui.Label;

+import com.vaadin.ui.Layout;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.VerticalLayout;

+

+public class MessageView extends Panel implements View {

+    public static final String NAME = "message";

+    private Layout layout;

+

+    public MessageView() {

+        super(new VerticalLayout());

+        setCaption("Messages");

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+        if (event.getParameters() != null) {

+            // split at "/", add each part as a label

+            String[] msgs = event.getParameters().split("/");

+            for (String msg : msgs) {

+                ((Layout) getContent()).addComponent(new Label(msg));

+            }

+        }

+    }

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/NavigationtestUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/NavigationtestUI.java
new file mode 100644
index 0000000000..c31bbef748
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/NavigationtestUI.java
@@ -0,0 +1,77 @@
+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;

+    }

+}

diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/SassyUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SassyUI.java
new file mode 100644
index 0000000000..a167522eeb
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SassyUI.java
@@ -0,0 +1,28 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.annotations.Theme;

+import com.vaadin.server.VaadinRequest;

+import com.vaadin.ui.Button;

+import com.vaadin.ui.Layout;

+import com.vaadin.ui.UI;

+import com.vaadin.ui.VerticalLayout;

+

+@Theme("sassy")

+public class SassyUI extends UI {

+    @Override

+    public void init(VaadinRequest request) {

+        Button b = new Button("Reindeer");

+        Layout layout = new VerticalLayout();

+        layout.addComponent(b);

+

+        b = new Button("important");

+        b.addStyleName("important");

+        layout.addComponent(b);

+

+        b = new Button("More important");

+        b.setPrimaryStyleName("my-button");

+        layout.addComponent(b);

+

+        setContent(layout);

+    }

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/SecretView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SecretView.java
new file mode 100644
index 0000000000..93dbe0b9e3
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SecretView.java
@@ -0,0 +1,16 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import com.vaadin.navigator.View;

+import com.vaadin.ui.Label;

+import com.vaadin.ui.Layout;

+

+public class SecretView extends MessageView implements View {

+    public static final String NAME = "secret";

+

+    public SecretView() {

+        setCaption("Private messages");

+

+        ((Layout) getContent()).addComponent(new Label("Some private stuff."));

+    }

+

+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b9/SettingsView.java b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SettingsView.java
new file mode 100644
index 0000000000..1e026fe641
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b9/SettingsView.java
@@ -0,0 +1,129 @@
+package com.vaadin.tests.minitutorials.v7b9;

+

+import java.util.Date;

+

+import com.vaadin.data.Property.ValueChangeEvent;

+import com.vaadin.data.Property.ValueChangeListener;

+import com.vaadin.data.util.ObjectProperty;

+import com.vaadin.navigator.Navigator;

+import com.vaadin.navigator.View;

+import com.vaadin.navigator.ViewChangeListener;

+import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;

+import com.vaadin.ui.Button;

+import com.vaadin.ui.Button.ClickEvent;

+import com.vaadin.ui.DateField;

+import com.vaadin.ui.InlineDateField;

+import com.vaadin.ui.Layout;

+import com.vaadin.ui.Notification;

+import com.vaadin.ui.Notification.Type;

+import com.vaadin.ui.Panel;

+import com.vaadin.ui.VerticalLayout;

+import com.vaadin.ui.themes.Reindeer;

+

+public class SettingsView extends Panel implements View {

+

+    public static String NAME = "settings";

+

+    Navigator navigator;

+    DateField date;

+    Button apply;

+    Button cancel;

+

+    String pendingViewAndParameters = null;

+

+    public SettingsView(final Navigator navigator) {

+        this.navigator = navigator;

+        Layout layout = new VerticalLayout();

+

+        date = new InlineDateField("Birth date");

+        date.setImmediate(true);

+        layout.addComponent(date);

+        // pretend we have a datasource:

+        date.setPropertyDataSource(new ObjectProperty<Date>(new Date()));

+        date.setBuffered(true);

+        // show buttons when date is changed

+        date.addValueChangeListener(new ValueChangeListener() {

+            public void valueChange(ValueChangeEvent event) {

+                hideOrShowButtons();

+                pendingViewAndParameters = null;

+            }

+        });

+

+        // commit the TextField changes when "Save" is clicked

+        apply = new Button("Apply", new Button.ClickListener() {

+            public void buttonClick(ClickEvent event) {

+                date.commit();

+                hideOrShowButtons();

+                processPendingView();

+            }

+        });

+        layout.addComponent(apply);

+

+        // Discard the TextField changes when "Cancel" is clicked

+        cancel = new Button("Cancel", new Button.ClickListener() {

+            public void buttonClick(ClickEvent event) {

+                date.discard();

+                hideOrShowButtons();

+                processPendingView();

+            }

+        });

+        cancel.setStyleName(Reindeer.BUTTON_LINK);

+        layout.addComponent(cancel);

+

+        // attach a listener so that we'll get asked isViewChangeAllowed?

+        navigator.addViewChangeListener(new ViewChangeListener() {

+            public boolean beforeViewChange(ViewChangeEvent event) {

+                if (event.getOldView() == SettingsView.this

+                        && date.isModified()) {

+

+                    // save the View where the user intended to go

+                    pendingViewAndParameters = event.getViewName();

+                    if (event.getParameters() != null) {

+                        pendingViewAndParameters += "/";

+                        pendingViewAndParameters += event.getParameters();

+                    }

+

+                    // Prompt the user to save or cancel if the name is changed

+                    Notification.show("Please apply or cancel your changes",

+                            Type.WARNING_MESSAGE);

+

+                    return false;

+                } else {

+                    return true;

+                }

+            }

+

+            public void afterViewChange(ViewChangeEvent event) {

+                pendingViewAndParameters = null;

+            }

+        });

+

+        setContent(layout);

+

+    }

+

+    // Hide or show buttons depending on whether date is modified or not

+    private void hideOrShowButtons() {

+        apply.setVisible(date.isModified());

+        cancel.setVisible(date.isModified());

+    }

+

+    // if there is a pending view change, do it now

+    private void processPendingView() {

+        if (pendingViewAndParameters != null) {

+            navigator.navigateTo(pendingViewAndParameters);

+            pendingViewAndParameters = null;

+        }

+    }

+

+    public void navigateTo(String fragmentParameters) {

+        hideOrShowButtons();

+    }

+

+    @Override

+    public void enter(ViewChangeEvent event) {

+        // TODO Auto-generated method stub

+

+    }

+

+}
\ No newline at end of file