Track that we're switching servers so that the client can differentiate during

did logoff between a real logoff and a server switch.


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@4894 542714f4-19e9-0310-aa3c-eee0fc999fb1

src/as/com/threerings/presents/client/Client.as

@@ -183,6 +183,17 @@ public class Client extends EventDispatcher
         return _invdir;
     }
 
+    /**
+     * Returns true if we're in the process of switching servers, false if we're not. This will
+     * only return true following the call to {@link #switchServers}, through the did logoff
+     * notification and the did clear notification. During the did logon notification for the new
+     * server or logon failure for same, we will not show as switching.
+     */
+    public function isSwitchingServers () :Boolean
+    {
+        return _switcher != null;
+    }
+
     /**
      * Returns the set of bootstrap service groups needed by this client.
      */
@@ -290,7 +301,8 @@ public class Client extends EventDispatcher
                                   obs :InvocationService_ConfirmListener) :void
     {
         // the server switcher will take care of everything for us
-        new ServerSwitcher(this, hostname, ports, obs).switchServers();
+        _switcher = new ServerSwitcher(this, hostname, ports, obs);
+        _switcher.switchServers();
     }
 
     /**
@@ -407,6 +419,9 @@ public class Client extends EventDispatcher
         } else {
             notifyObservers(ClientEvent.CLIENT_DID_CLEAR, null);
         }
+
+        // clear out any server switcher reference
+        _switcher = null;
     }
 
     /**
@@ -473,6 +488,10 @@ public class Client extends EventDispatcher
     /** Ticks. */
     protected var _tickInterval :Timer;
 
+    /** Used to temporarily track our server switcher so that we can tell when we're logging off
+     * whether or not we're switching servers or actually ending our session. */
+    protected var _switcher :ServerSwitcher;
+
     // client observer constants
     /*
     internal static const CLIENT_DID_LOGON :int = 0;