Display information banners in the MP server browser.

Notices are provided for outdated / unknown mod versions
and latest but playtest available.

OpenRA.Mods.Common/WebServices.cs

@@ -19,5 +19,6 @@ namespace OpenRA
 		public readonly string ServerAdvertise = "http://master.openra.net/ping";
 		public readonly string MapRepository = "http://resource.openra.net/map/";
 		public readonly string GameNews = "http://master.openra.net/gamenews";
+		public readonly string MPNotices = "http://master.openra.net/notices";
 	}
 }

OpenRA.Mods.Common/Widgets/Logic/MultiplayerLogic.cs

@@ -38,8 +38,11 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		readonly ModData modData;
 		readonly WebServices services;
 		readonly Probe lanGameProbe;
+
+		readonly Widget serverList;
 		readonly ScrollItemWidget serverTemplate;
 		readonly ScrollItemWidget headerTemplate;
+		readonly Widget noticeContainer;
 		readonly Widget clientContainer;
 		readonly ScrollPanelWidget clientList;
 		readonly ScrollItemWidget clientTemplate, clientHeader;
@@ -54,9 +57,12 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		Action onExit;
 
 		enum SearchStatus { Fetching, Failed, NoGames, Hidden }
+		enum NoticeType { None, Outdated, Unknown, PlaytestAvailable }
+
 		SearchStatus searchStatus = SearchStatus.Fetching;
+		NoticeType notice = NoticeType.None;
+
 		Download currentQuery;
-		Widget serverList;
 		IEnumerable<BeaconLocation> lanGameLocations;
 
 		public string ProgressLabelText()
@@ -91,6 +97,15 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			headerTemplate = serverList.Get<ScrollItemWidget>("HEADER_TEMPLATE");
 			serverTemplate = serverList.Get<ScrollItemWidget>("SERVER_TEMPLATE");
 
+			noticeContainer = widget.GetOrNull("NOTICE_CONTAINER");
+			if (noticeContainer != null)
+			{
+				noticeContainer.IsVisible = () => notice != NoticeType.None;
+				noticeContainer.Get("OUTDATED_VERSION_LABEL").IsVisible = () => notice == NoticeType.Outdated;
+				noticeContainer.Get("UNKNOWN_VERSION_LABEL").IsVisible = () => notice == NoticeType.Unknown;
+				noticeContainer.Get("PLAYTEST_AVAILABLE_LABEL").IsVisible = () => notice == NoticeType.PlaytestAvailable;
+			}
+
 			joinButton = widget.Get<ButtonWidget>("JOIN_BUTTON");
 			joinButton.IsVisible = () => currentServer != null;
 			joinButton.IsDisabled = () => !currentServer.IsJoinable;
@@ -256,6 +271,7 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			}
 
 			RefreshServerList();
+			QueryNotices();
 
 			if (directConnectHost != null)
 			{
@@ -285,6 +301,48 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 				game.Spectators > 0 ? ", {0} Spectator{1}".F(game.Spectators, game.Spectators != 1 ? "s" : "") : "");
 		}
 
+		void QueryNotices()
+		{
+			if (noticeContainer == null)
+				return;
+
+			Action<DownloadDataCompletedEventArgs> onComplete = i =>
+			{
+				if (i.Error != null)
+					return;
+				try
+				{
+					var data = Encoding.UTF8.GetString(i.Result);
+					var n = NoticeType.None;
+					switch (data)
+					{
+						case "outdated": n = NoticeType.Outdated; break;
+						case "unknown": n = NoticeType.Unknown; break;
+						case "playtest": n = NoticeType.PlaytestAvailable; break;
+					}
+
+					if (n == NoticeType.None)
+						return;
+
+					Game.RunAfterTick(() =>
+					{
+						notice = n;
+						serverList.Bounds.Y += noticeContainer.Bounds.Height;
+						serverList.Bounds.Height -= noticeContainer.Bounds.Height;
+					});
+				}
+				catch { }
+			};
+
+			var queryURL = services.MPNotices + "?protocol={0}&engine={1}&mod={2}&version={3}".F(
+				GameServer.ProtocolVersion,
+				Uri.EscapeUriString(Game.EngineVersion),
+				Uri.EscapeUriString(Game.ModData.Manifest.Id),
+				Uri.EscapeUriString(Game.ModData.Manifest.Metadata.Version));
+
+			new Download(queryURL, _ => { }, onComplete);
+		}
+
 		void RefreshServerList()
 		{
 			// Query in progress

mods/cnc/chrome/multiplayer-browser.yaml

@@ -48,6 +48,38 @@ Container@MULTIPLAYER_PANEL:
 							Height: 25
 							Text: Status
 							Font: Bold
+				Container@NOTICE_CONTAINER:
+					X: 15
+					Y: 30
+					Width: 582
+					Height: 19
+					Children:
+						Background@bg:
+							Width: PARENT_RIGHT
+							Height: 20
+							Background: panel-black
+							Children:
+								Label@OUTDATED_VERSION_LABEL:
+									X: 5
+									Width: PARENT_RIGHT-10
+									Height: 18
+									Align: Center
+									Text: You are running an outdated version of OpenRA. Download the latest version from www.openra.net
+									Font: TinyBold
+								Label@UNKNOWN_VERSION_LABEL:
+									X: 5
+									Width: PARENT_RIGHT-10
+									Height: 18
+									Align: Center
+									Text: You are running an unrecognized version of OpenRA. Download the latest version from www.openra.net
+									Font: TinyBold
+								Label@PLAYTEST_AVAILABLE_LABEL:
+									X: 5
+									Width: PARENT_RIGHT-10
+									Height: 18
+									Align: Center
+									Text: A pre-release version of OpenRA is available for testing. Download the playtest from www.openra.net
+									Font: TinyBold
 				ScrollPanel@SERVER_LIST:
 					X: 15
 					Y: 30

mods/common/chrome/multiplayer-browser.yaml

@@ -43,6 +43,34 @@ Background@MULTIPLAYER_PANEL:
 					Height: 25
 					Text: Status
 					Font: Bold
+		Background@NOTICE_CONTAINER:
+			X: 20
+			Y: 67
+			Width: 583
+			Height: 20
+			Background: dialog2
+			Children:
+				Label@OUTDATED_VERSION_LABEL:
+					X: 5
+					Width: PARENT_RIGHT-10
+					Height: 18
+					Align: Center
+					Text: You are running an outdated version of OpenRA. Download the latest version from www.openra.net
+					Font: TinyBold
+				Label@UNKNOWN_VERSION_LABEL:
+					X: 5
+					Width: PARENT_RIGHT-10
+					Height: 18
+					Align: Center
+					Text: You are running an unrecognized version of OpenRA. Download the latest version from www.openra.net
+					Font: TinyBold
+				Label@PLAYTEST_AVAILABLE_LABEL:
+					X: 5
+					Width: PARENT_RIGHT-10
+					Height: 18
+					Align: Center
+					Text: A pre-release version of OpenRA is available for testing. Download the playtest from www.openra.net
+					Font: TinyBold
 		ScrollPanel@SERVER_LIST:
 			X: 20
 			Y: 67