Mini tutorial code update

15 files changed, 457 insertions, 60 deletions

diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/DynamicImageUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/DynamicImageUI.java
index b5057dd9c2..61cbd94f3a 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/DynamicImageUI.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/DynamicImageUI.java
@@ -2,56 +2,36 @@ package com.vaadin.tests.minitutorials.v7a1;
 
 import java.awt.image.BufferedImage;
 import java.io.IOException;
+import java.util.HashMap;
 
 import javax.imageio.ImageIO;
 
-import com.vaadin.server.ExternalResource;
-import com.vaadin.server.RequestHandler;
+import com.vaadin.server.DynamicConnectorResource;
 import com.vaadin.server.VaadinRequest;
 import com.vaadin.server.VaadinResponse;
-import com.vaadin.server.VaadinServiceSession;
 import com.vaadin.tests.components.AbstractTestUI;
-import com.vaadin.ui.Embedded;
+import com.vaadin.ui.Image;
 
 public class DynamicImageUI extends AbstractTestUI {
+    public static final String IMAGE_URL = "myimage.png";
 
     @Override
     public void setup(VaadinRequest request) {
-        // Add the request handler that handles our dynamic image
-        getSession().addRequestHandler(new DynamicImageRequestHandler());
-
-        // Create a URL that we can handle in DynamicImageRequestHandler
-        String imageUrl = "app://" + DynamicImageRequestHandler.IMAGE_URL
-                + "?text=Hello!";
+        HashMap<String, String> parameters = new HashMap<String, String>();
+        parameters.put("text", "Hello!");
+        DynamicConnectorResource resource = new DynamicConnectorResource(this,
+                IMAGE_URL, parameters);
 
-        // Add an embedded using the created URL
-        Embedded embedded = new Embedded("A dynamically generated image",
-                new ExternalResource(imageUrl));
-        embedded.setType(Embedded.TYPE_IMAGE);
-        getContent().addComponent(embedded);
-
-    }
+        // Add an image using the resource
+        Image image = new Image("A dynamically generated image", resource);
 
-    @Override
-    protected String getTestDescription() {
-        return "Mini tutorial for https://vaadin.com/wiki/-/wiki/Main/Generating%20dynamic%20resources%20based%20on%20URI%20or%20parameters";
+        getContent().addComponent(image);
     }
 
     @Override
-    protected Integer getTicketNumber() {
-        return null;
-    }
-}
-
-class DynamicImageRequestHandler implements RequestHandler {
-
-    public static final String IMAGE_URL = "myimage.png";
-
-    @Override
-    public boolean handleRequest(VaadinServiceSession session,
-            VaadinRequest request, VaadinResponse response) throws IOException {
-        String pathInfo = request.getRequestPathInfo();
-        if (("/" + IMAGE_URL).equals(pathInfo)) {
+    public boolean handleConnectorRequest(VaadinRequest request,
+            VaadinResponse response, String path) throws IOException {
+        if ((IMAGE_URL).equals(path)) {
             // Create an image, draw the "text" parameter to it and output it to
             // the browser.
             String text = request.getParameter("text");
@@ -68,4 +48,14 @@ class DynamicImageRequestHandler implements RequestHandler {
         // handlers handle it
         return false;
     }
-}
+
+    @Override
+    protected String getTestDescription() {
+        return "Mini tutorial for https://vaadin.com/wiki/-/wiki/Main/Generating%20dynamic%20resources%20based%20on%20URI%20or%20parameters";
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        return null;
+    }
+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingUriFragments.java b/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingUriFragments.java
index 6d9890a21c..5d7555a952 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingUriFragments.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a1/UsingUriFragments.java
@@ -36,7 +36,7 @@ public class UsingUriFragments extends UI {
     @Override
     protected void init(VaadinRequest request) {
         Label label = new Label("Hello, your fragment is "
-                + getPage().getLocation().getFragment());
+                + getPage().getFragment());
         getContent().addComponent(label);
 
         // React to fragment changes
@@ -48,7 +48,7 @@ public class UsingUriFragments extends UI {
         });
 
         // Handle the fragment received in the initial request
-        handleFragment(getPage().getLocation().getFragment());
+        handleFragment(getPage().getFragment());
 
         addComponent(new Button("Show and set fragment",
                 new Button.ClickListener() {
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateComponent.java b/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateComponent.java
index cf0c5a3e2b..caaca14ae8 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateComponent.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateComponent.java
@@ -17,20 +17,15 @@
 package com.vaadin.tests.minitutorials.v7a2;
 
 import com.vaadin.server.Resource;
-import com.vaadin.tests.widgetset.client.minitutorials.v7a2.ResourceInStateState;
 import com.vaadin.ui.AbstractComponent;
 
 public class ResourceInStateComponent extends AbstractComponent {
-    @Override
-    public ResourceInStateState getState() {
-        return (ResourceInStateState) super.getState();
-    }
 
     public void setMyIcon(Resource icon) {
-        setResource(ResourceInStateState.MY_ICON_RESOURCE, icon);
+        setResource("myIcon", icon);
     }
 
     public Resource getMyIcon() {
-        return getResource(ResourceInStateState.MY_ICON_RESOURCE);
+        return getResource("myIcon");
     }
 }
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateUI.java
index 2a64792646..155c1d9ded 100644
--- a/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateUI.java
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a2/ResourceInStateUI.java
@@ -35,7 +35,7 @@ public class ResourceInStateUI extends UI {
     @Override
     protected void init(VaadinRequest request) {
         ResourceInStateComponent component = new ResourceInStateComponent();
-        component.setIcon(new ThemeResource("../runo/icons/32/calendar.png"));
+        component.setMyIcon(new ThemeResource("../runo/icons/32/calendar.png"));
 
         addComponent(component);
     }
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a3/Refresher.java b/uitest/src/com/vaadin/tests/minitutorials/v7a3/Refresher.java
new file mode 100644
index 0000000000..408b04b3b4
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a3/Refresher.java
@@ -0,0 +1,61 @@
+package com.vaadin.tests.minitutorials.v7a3;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.vaadin.server.AbstractExtension;
+import com.vaadin.tests.widgetset.client.minitutorials.v7a3.RefresherRpc;
+import com.vaadin.tests.widgetset.client.minitutorials.v7a3.RefresherState;
+import com.vaadin.ui.UI;
+
+public class Refresher extends AbstractExtension {
+    public interface RefreshListener {
+        public void refresh(Refresher source);
+    }
+
+    private List<RefreshListener> listeners = new ArrayList<RefreshListener>();
+
+    public Refresher() {
+        registerRpc(new RefresherRpc() {
+            @Override
+            public void refresh() {
+                for (RefreshListener listener : listeners) {
+                    listener.refresh(Refresher.this);
+                }
+            }
+        });
+    }
+
+    @Override
+    public RefresherState getState() {
+        return (RefresherState) super.getState();
+    }
+
+    public void setInterval(int millis) {
+        getState().interval = millis;
+    }
+
+    public int getInterval() {
+        return getState().interval;
+    }
+
+    public void setEnabled(boolean enabled) {
+        getState().enabled = enabled;
+    }
+
+    public boolean isEnabled() {
+        return getState().enabled;
+    }
+
+    public void addListener(RefreshListener listener) {
+        listeners.add(listener);
+    }
+
+    public void removeListener(RefreshListener listener) {
+        listeners.remove(listener);
+    }
+
+    public void extend(UI target) {
+        super.extend(target);
+    }
+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7a3/RefresherTestUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7a3/RefresherTestUI.java
new file mode 100644
index 0000000000..430da55fa1
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7a3/RefresherTestUI.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.minitutorials.v7a3;
+
+import com.vaadin.annotations.Widgetset;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.tests.minitutorials.v7a3.Refresher.RefreshListener;
+import com.vaadin.tests.widgetset.TestingWidgetSet;
+
+@Widgetset(TestingWidgetSet.NAME)
+public class RefresherTestUI extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        Refresher refresher = new Refresher();
+        refresher.extend(this);
+        refresher.addListener(new RefreshListener() {
+            @Override
+            public void refresh(Refresher source) {
+                System.out.println("Got refresh");
+            }
+        });
+    }
+
+    @Override
+    protected String getTestDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b1/AxessingWebPageAndBrowserInfoUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7b1/AxessingWebPageAndBrowserInfoUI.java
new file mode 100644
index 0000000000..8623dd0b73
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b1/AxessingWebPageAndBrowserInfoUI.java
@@ -0,0 +1,67 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.minitutorials.v7b1;
+
+import com.vaadin.server.Page;
+import com.vaadin.server.Page.BrowserWindowResizeEvent;
+import com.vaadin.server.Page.BrowserWindowResizeListener;
+import com.vaadin.server.Page.FragmentChangedEvent;
+import com.vaadin.server.Page.FragmentChangedListener;
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.tests.components.AbstractTestUI;
+import com.vaadin.ui.Notification;
+import com.vaadin.ui.UI;
+
+public class AxessingWebPageAndBrowserInfoUI extends AbstractTestUI {
+
+    @Override
+    protected void setup(VaadinRequest request) {
+        UI someUI = this;
+
+        Page page = someUI.getPage();
+        page.setBrowserWindowSize(page.getBrowserWindowWidth() + 10,
+                page.getBrowserWindowHeight() + 10);
+        page.addBrowserWindowResizeListener(new BrowserWindowResizeListener() {
+            @Override
+            public void browserWindowResized(BrowserWindowResizeEvent event) {
+                Notification.show("Window width=" + event.getWidth()
+                        + ", height=" + event.getHeight());
+            }
+        });
+
+        page.setFragment(page.getFragment() + "foo");
+        page.addFragmentChangedListener(new FragmentChangedListener() {
+            @Override
+            public void fragmentChanged(FragmentChangedEvent event) {
+                Notification.show("Fragment=" + event.getFragment());
+            }
+        });
+    }
+
+    @Override
+    protected String getTestDescription() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+    @Override
+    protected Integer getTicketNumber() {
+        // TODO Auto-generated method stub
+        return null;
+    }
+
+}
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b1/BootstrapListenerCode.java b/uitest/src/com/vaadin/tests/minitutorials/v7b1/BootstrapListenerCode.java
new file mode 100644
index 0000000000..422e44e402
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b1/BootstrapListenerCode.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.minitutorials.v7b1;
+
+import java.util.List;
+
+import javax.portlet.PortletException;
+import javax.servlet.ServletException;
+
+import org.jsoup.nodes.Comment;
+import org.jsoup.nodes.Element;
+import org.jsoup.nodes.Node;
+import org.jsoup.parser.Tag;
+
+import com.vaadin.server.BootstrapFragmentResponse;
+import com.vaadin.server.BootstrapListener;
+import com.vaadin.server.BootstrapPageResponse;
+import com.vaadin.server.ServiceException;
+import com.vaadin.server.SessionInitEvent;
+import com.vaadin.server.SessionInitListener;
+import com.vaadin.server.VaadinPortlet;
+import com.vaadin.server.VaadinServlet;
+
+public class BootstrapListenerCode {
+    public static BootstrapListener listener = new BootstrapListener() {
+        @Override
+        public void modifyBootstrapPage(BootstrapPageResponse response) {
+            response.getDocument().body()
+                    .appendChild(new Comment("Powered by Vaadin!", ""));
+            response.setHeader("X-Powered-By", "Vaadin 7");
+        }
+
+        @Override
+        public void modifyBootstrapFragment(BootstrapFragmentResponse response) {
+            // Wrap the fragment in a custom div element
+            Element myDiv = new Element(Tag.valueOf("div"), "");
+            List<Node> nodes = response.getFragmentNodes();
+            for (Node node : nodes) {
+                myDiv.appendChild(node);
+            }
+            nodes.clear();
+            nodes.add(myDiv);
+        }
+    };
+}
+
+class MyVaadinServlet extends VaadinServlet {
+    @Override
+    protected void servletInitialized() throws ServletException {
+        super.servletInitialized();
+        getService().addSessionInitListener(new SessionInitListener() {
+            @Override
+            public void sessionInit(SessionInitEvent event)
+                    throws ServiceException {
+                event.getSession().addBootstrapListener(
+                        BootstrapListenerCode.listener);
+            }
+        });
+    }
+}
+
+// Or...
+
+class MyVaadinPortlet extends VaadinPortlet {
+    @Override
+    protected void portletInitialized() throws PortletException {
+        super.portletInitialized();
+        getService().addSessionInitListener(new SessionInitListener() {
+            @Override
+            public void sessionInit(SessionInitEvent event)
+                    throws ServiceException {
+                event.getSession().addBootstrapListener(
+                        BootstrapListenerCode.listener);
+            }
+        });
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/minitutorials/v7b2/CleanupUI.java b/uitest/src/com/vaadin/tests/minitutorials/v7b2/CleanupUI.java
new file mode 100644
index 0000000000..9e89d65811
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/minitutorials/v7b2/CleanupUI.java
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.minitutorials.v7b2;
+
+import com.vaadin.server.VaadinRequest;
+import com.vaadin.ui.UI;
+
+public class CleanupUI extends UI implements UI.CleanupListener {
+    @Override
+    protected void init(VaadinRequest request) {
+        addCleanupListener(new UI.CleanupListener() {
+            @Override
+            public void cleanup(UI.CleanupEvent event) {
+                releaseSomeResources();
+            }
+        });
+
+        // ...
+        addCleanupListener(this);
+    }
+
+    private void releaseSomeResources() {
+        // ...
+    }
+
+    @Override
+    public void cleanup(UI.CleanupEvent event) {
+        // do cleanup
+        event.getUI();
+        // or equivalent:
+        UI.getCurrent();
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateConnector.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateConnector.java
index 93b12dbc68..a4b816e47e 100644
--- a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateConnector.java
+++ b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateConnector.java
@@ -27,10 +27,10 @@ public class ResourceInStateConnector extends AbstractComponentConnector {
     @Override
     public void onStateChanged(StateChangeEvent stateChangeEvent) {
         super.onStateChanged(stateChangeEvent);
-        String icon = getResourceUrl(ResourceInStateState.MY_ICON_RESOURCE);
+        String iconUrl = getResourceUrl("myIcon");
 
-        if (icon != null) {
-            getWidget().setUrl(icon);
+        if (iconUrl != null) {
+            getWidget().setUrl(iconUrl);
         } else {
             getWidget().setUrl("");
         }
@@ -38,11 +38,6 @@ public class ResourceInStateConnector extends AbstractComponentConnector {
     }
 
     @Override
-    public ResourceInStateState getState() {
-        return (ResourceInStateState) super.getState();
-    }
-
-    @Override
     public Image getWidget() {
         return (Image) super.getWidget();
     }
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateState.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateState.java
deleted file mode 100644
index 728f0ba5e1..0000000000
--- a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a2/ResourceInStateState.java
+++ /dev/null
@@ -1,7 +0,0 @@
-package com.vaadin.tests.widgetset.client.minitutorials.v7a2;
-
-import com.vaadin.shared.ComponentState;
-
-public class ResourceInStateState extends ComponentState {
-    public static final String MY_ICON_RESOURCE = "myIcon";
-}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/ClientSideModule.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/ClientSideModule.java
new file mode 100644
index 0000000000..48bd8a76fb
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/ClientSideModule.java
@@ -0,0 +1,52 @@
+/*
+ * Copyright 2012 Vaadin Ltd.
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not
+ * use this file except in compliance with the License. You may obtain a copy of
+ * the License at
+ * 
+ * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+ * License for the specific language governing permissions and limitations under
+ * the License.
+ */
+
+package com.vaadin.tests.widgetset.client.minitutorials.v7a3;
+
+import com.google.gwt.core.client.EntryPoint;
+import com.google.gwt.event.dom.client.ClickEvent;
+import com.google.gwt.event.dom.client.ClickHandler;
+import com.google.gwt.user.client.Window;
+import com.google.gwt.user.client.ui.Button;
+import com.google.gwt.user.client.ui.RootPanel;
+import com.google.gwt.user.client.ui.TextBox;
+import com.google.gwt.user.client.ui.VerticalPanel;
+
+public class ClientSideModule implements EntryPoint {
+
+    @Override
+    public void onModuleLoad() {
+        final TextBox nameField = new TextBox();
+        nameField.setText("GWT User");
+        final Button button = new Button("Check");
+
+        VerticalPanel vp = new VerticalPanel();
+        vp.add(nameField);
+        vp.add(button);
+        RootPanel.get().add(vp);
+
+        button.addClickHandler(new ClickHandler() {
+            @Override
+            public void onClick(ClickEvent event) {
+                if ("GWT User".equals(nameField.getText())) {
+                    Window.alert("User OK");
+                } else {
+                    Window.alert("Unauthorized user");
+                }
+            }
+        });
+    }
+}
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherConnector.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherConnector.java
new file mode 100644
index 0000000000..26fa22a667
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherConnector.java
@@ -0,0 +1,40 @@
+package com.vaadin.tests.widgetset.client.minitutorials.v7a3;
+
+import com.google.gwt.user.client.Timer;
+import com.vaadin.client.communication.RpcProxy;
+import com.vaadin.client.communication.StateChangeEvent;
+import com.vaadin.client.extensions.AbstractExtensionConnector;
+import com.vaadin.shared.ui.Connect;
+import com.vaadin.tests.minitutorials.v7a3.Refresher;
+
+@Connect(Refresher.class)
+public class RefresherConnector extends AbstractExtensionConnector {
+
+    private RefresherRpc rpc = RpcProxy.create(RefresherRpc.class, this);
+
+    private Timer timer = new Timer() {
+        @Override
+        public void run() {
+            rpc.refresh();
+        }
+    };
+
+    @Override
+    public void onStateChanged(StateChangeEvent event) {
+        super.onStateChanged(event);
+        timer.cancel();
+        if (isEnabled()) {
+            timer.scheduleRepeating(getState().interval);
+        }
+    }
+
+    @Override
+    public void onUnregister() {
+        timer.cancel();
+    }
+
+    @Override
+    public RefresherState getState() {
+        return (RefresherState) super.getState();
+    }
+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherRpc.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherRpc.java
new file mode 100644
index 0000000000..df9c9733f7
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherRpc.java
@@ -0,0 +1,7 @@
+package com.vaadin.tests.widgetset.client.minitutorials.v7a3;
+
+import com.vaadin.shared.communication.ServerRpc;
+
+public interface RefresherRpc extends ServerRpc {
+    public void refresh();
+}
\ No newline at end of file
diff --git a/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherState.java b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherState.java
new file mode 100644
index 0000000000..769f6330a9
--- /dev/null
+++ b/uitest/src/com/vaadin/tests/widgetset/client/minitutorials/v7a3/RefresherState.java
@@ -0,0 +1,7 @@
+package com.vaadin.tests.widgetset.client.minitutorials.v7a3;
+
+import com.vaadin.shared.communication.SharedState;
+
+public class RefresherState extends SharedState {
+    public int interval = 1000;
+}
\ No newline at end of file