From e6f12f49b4228425a7624b3bd5be9ad4c300b37b Mon Sep 17 00:00:00 2001
From: Johannes Dahlström <johannesd@vaadin.com>
Date: Fri, 14 Sep 2012 16:01:16 +0300
Subject: Add UI.addCloseListener() and removeCloseListener() that were missing
 for some reason (#9265)

---
 server/src/com/vaadin/ui/UI.java | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'server/src/com/vaadin/ui/UI.java')

diff --git a/server/src/com/vaadin/ui/UI.java b/server/src/com/vaadin/ui/UI.java
index 41d0c43399..7f0710c813 100644
--- a/server/src/com/vaadin/ui/UI.java
+++ b/server/src/com/vaadin/ui/UI.java
@@ -1119,6 +1119,18 @@ public abstract class UI extends AbstractComponentContainer implements
                 ClickListener.clickMethod);
     }
 
+    /**
+     * Adds a close listener to the UI. Close listeners are invoked when the UI
+     * is removed from the session due to UI or session expiration.
+     * 
+     * @param listener
+     *            The CloseListener that should be added.
+     */
+    public void addCloseListener(CloseListener listener) {
+        addListener(CloseEvent.CLOSE_EVENT_IDENTIFIER, CloseEvent.class,
+                listener, CloseListener.closeMethod);
+    }
+
     /**
      * @deprecated Since 7.0, replaced by
      *             {@link #addClickListener(ClickListener)}
@@ -1140,6 +1152,18 @@ public abstract class UI extends AbstractComponentContainer implements
                 listener);
     }
 
+    /**
+     * Removes a close listener from the UI, if previously added with
+     * {@link #addCloseListener(CloseListener)}.
+     * 
+     * @param listener
+     *            The CloseListener that should be removed
+     */
+    public void removeCloseListener(CloseListener listener) {
+        removeListener(CloseEvent.CLOSE_EVENT_IDENTIFIER, CloseEvent.class,
+                listener);
+    }
+
     /**
      * @deprecated Since 7.0, replaced by
      *             {@link #removeClickListener(ClickListener)}
-- 
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