From ff4988f6beaa0a1c8b908e098525afc3505ece64 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Johannes=20Dahlstr=C3=B6m?= <johannesd@vaadin.com>
Date: Wed, 8 Aug 2012 17:05:34 +0300
Subject: [PATCH] Added a heartbeat timer to RootConnector (#9265)

Conflicts:

	src/com/vaadin/terminal/gwt/client/ui/root/RootConnector.java
---
 src/com/vaadin/shared/ui/root/RootState.java  |  8 ++++
 .../gwt/client/ui/root/RootConnector.java     | 38 +++++++++++++++++++
 2 files changed, 46 insertions(+)

diff --git a/src/com/vaadin/shared/ui/root/RootState.java b/src/com/vaadin/shared/ui/root/RootState.java
index 26844cba32..31c5a8f872 100644
--- a/src/com/vaadin/shared/ui/root/RootState.java
+++ b/src/com/vaadin/shared/ui/root/RootState.java
@@ -8,6 +8,7 @@ import com.vaadin.shared.Connector;
 
 public class RootState extends ComponentState {
     private Connector content;
+    private int heartbeatInterval;
 
     public Connector getContent() {
         return content;
@@ -17,4 +18,11 @@ public class RootState extends ComponentState {
         this.content = content;
     }
 
+    public int getHeartbeatInterval() {
+        return heartbeatInterval;
+    }
+
+    public void setHeartbeatInterval(int heartbeatInterval) {
+        this.heartbeatInterval = heartbeatInterval;
+    }
 }
\ No newline at end of file
diff --git a/src/com/vaadin/terminal/gwt/client/ui/root/RootConnector.java b/src/com/vaadin/terminal/gwt/client/ui/root/RootConnector.java
index 7b5097ff77..a4740bdc64 100644
--- a/src/com/vaadin/terminal/gwt/client/ui/root/RootConnector.java
+++ b/src/com/vaadin/terminal/gwt/client/ui/root/RootConnector.java
@@ -11,10 +11,16 @@ import com.google.gwt.core.client.Scheduler;
 import com.google.gwt.dom.client.NativeEvent;
 import com.google.gwt.dom.client.Style;
 import com.google.gwt.dom.client.Style.Position;
+import com.google.gwt.http.client.Request;
+import com.google.gwt.http.client.RequestBuilder;
+import com.google.gwt.http.client.RequestCallback;
+import com.google.gwt.http.client.RequestException;
+import com.google.gwt.http.client.Response;
 import com.google.gwt.user.client.Command;
 import com.google.gwt.user.client.DOM;
 import com.google.gwt.user.client.Event;
 import com.google.gwt.user.client.History;
+import com.google.gwt.user.client.Timer;
 import com.google.gwt.user.client.Window;
 import com.google.gwt.user.client.ui.RootPanel;
 import com.google.gwt.user.client.ui.Widget;
@@ -71,6 +77,14 @@ public class RootConnector extends AbstractComponentContainerConnector
                 com.google.gwt.user.client.Window.setTitle(title);
             }
         });
+        final int heartbeatInterval = getState().getHeartbeatInterval();
+        new Timer() {
+            @Override
+            public void run() {
+                sendHeartbeat();
+                schedule(heartbeatInterval);
+            }
+        }.schedule(heartbeatInterval);
     }
 
     @Override
@@ -428,4 +442,28 @@ public class RootConnector extends AbstractComponentContainerConnector
         });
     }
 
+    private void sendHeartbeat() {
+        RequestBuilder rb = new RequestBuilder(RequestBuilder.POST, "url");
+
+        rb.setCallback(new RequestCallback() {
+
+            @Override
+            public void onResponseReceived(Request request, Response response) {
+                // TODO Auto-generated method stub
+
+            }
+
+            @Override
+            public void onError(Request request, Throwable exception) {
+                // TODO Auto-generated method stub
+
+            }
+        });
+
+        try {
+            rb.send();
+        } catch (RequestException re) {
+
+        }
+    }
 }
-- 
2.39.5