From 47c360cde636ce70fff46f5e3376e27813503ab6 Mon Sep 17 00:00:00 2001
From: Matti Tahvonen <matti.tahvonen@itmill.com>
Date: Wed, 18 Apr 2007 06:58:19 +0000
Subject: [PATCH] fixes #510

svn changeset:1272/svn branch:trunk
---
 src/com/itmill/toolkit/Application.java       | 22 ++++++++++++++++
 .../terminal/web/AjaxApplicationManager.java  | 25 +++++++++++--------
 2 files changed, 37 insertions(+), 10 deletions(-)

diff --git a/src/com/itmill/toolkit/Application.java b/src/com/itmill/toolkit/Application.java
index 4b08b4579d..5211a15c15 100644
--- a/src/com/itmill/toolkit/Application.java
+++ b/src/com/itmill/toolkit/Application.java
@@ -192,6 +192,28 @@ public abstract class Application implements URIHandler, Terminal.ErrorListener
 	private String logoutURL = null;
 
 	private Focusable pendingFocus;
+	
+	/** 
+	 * Flag to indicate if first ajax request is sent 
+	 */
+	private boolean ajaxInitSent = false;
+	
+	/**
+	 * This function should anly be called in AjaxApplicationManager to
+	 * tell ajax engine (browser) that this is application restart. Returns 
+	 * true on first call, false on subsequent calls.
+	 * 
+	 * TODO consider moving this to WebApplicationContext
+	 * 
+	 * @return true if in ajax init state
+	 */
+	public boolean ajaxInit() {
+		if(this.ajaxInitSent) {
+			return false;
+		} else {
+			return this.ajaxInitSent = true;
+		}
+	}
 
 	/**
 	 * <p>
diff --git a/src/com/itmill/toolkit/terminal/web/AjaxApplicationManager.java b/src/com/itmill/toolkit/terminal/web/AjaxApplicationManager.java
index 29270595cf..9c43abd5b8 100644
--- a/src/com/itmill/toolkit/terminal/web/AjaxApplicationManager.java
+++ b/src/com/itmill/toolkit/terminal/web/AjaxApplicationManager.java
@@ -56,7 +56,6 @@ import com.itmill.toolkit.terminal.DownloadStream;
 import com.itmill.toolkit.terminal.Paintable;
 import com.itmill.toolkit.terminal.URIHandler;
 import com.itmill.toolkit.terminal.Paintable.RepaintRequestEvent;
-import com.itmill.toolkit.ui.AbstractComponent;
 import com.itmill.toolkit.ui.Component;
 import com.itmill.toolkit.ui.FrameWindow;
 import com.itmill.toolkit.ui.Window;
@@ -305,15 +304,21 @@ public class AjaxApplicationManager implements
 						}
 					}
 
-					// add meta instruction for client to set focus if it is set
-					Paintable f = (Paintable) application.consumeFocus();
-					if (f != null) {
-						paintTarget.startTag("meta");
-						paintTarget.startTag("focus");
-						paintTarget.addAttribute("pid", getPaintableId(f));
-						paintTarget.endTag("focus");
-						paintTarget.endTag("meta");
-					}
+                    // add meta instruction for client to set focus if it is set
+                    Paintable f = (Paintable) application.consumeFocus();
+                    // .. or initializion (first uidl-request)
+                    boolean init = application.ajaxInit();
+                    if(init || f != null) {
+                        paintTarget.startTag("meta");
+                        if(init)
+                        	paintTarget.addAttribute("appInit", true);
+                        if(f != null) {
+                        	paintTarget.startTag("focus");
+                        	paintTarget.addAttribute("pid", getPaintableId(f));
+                        	paintTarget.endTag("focus");
+                        }
+                        paintTarget.endTag("meta");
+                    }
 
 					paintTarget.close();
 					out.flush();
-- 
2.39.5