Show an error dialog if disconnected from the server.

OpenRA.Mods.RA/Widgets/Logic/DisconnectWatcherLogic.cs

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+#region Copyright & License Information
+/*
+ * Copyright 2007-2014 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using OpenRA.Network;
+using OpenRA.Widgets;
+
+namespace OpenRA.Mods.RA.Widgets.Logic
+{
+	public class DisconnectWatcherLogic
+	{
+		[ObjectCreator.UseCtor]
+		public DisconnectWatcherLogic(Widget widget, OrderManager orderManager)
+		{
+			var disconnected = false;
+			widget.Get<LogicTickerWidget>("DISCONNECT_WATCHER").OnTick = () => 
+			{
+				if (!disconnected && orderManager.Connection.ConnectionState == ConnectionState.NotConnected)
+				{
+					Game.RunAfterTick(() =>
+					{
+						Ui.OpenWindow("CONNECTIONFAILED_PANEL", new WidgetArgs()
+						{
+							{ "orderManager", orderManager },
+							{ "onAbort", null },
+							{ "onRetry", null }
+						});
+					});
+
+					disconnected = true;
+				}
+			};
+		}
+	}
+}