Add an update warning to the main menu.

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

@@ -37,6 +37,8 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 		// Update news once per game launch
 		static bool fetchedNews;
 
+		bool newsOpen;
+
 		// Increment the version number when adding new stats
 		const int SystemInformationVersion = 3;
 		Dictionary<string, Pair<string, string>> GetSystemInformation()
@@ -242,6 +244,12 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 			if (Game.Settings.Debug.CheckVersion)
 				webServices.CheckModVersion();
 
+			var updateLabel = rootMenu.GetOrNull("UPDATE_NOTICE");
+			if (updateLabel != null)
+				updateLabel.IsVisible = () => !newsOpen && menuType != MenuType.None &&
+					menuType != MenuType.SystemInfoPrompt &&
+					webServices.ModVersionStatus == ModVersionStatus.Outdated;
+
 			// System information opt-out prompt
 			var sysInfoPrompt = widget.Get("SYSTEM_INFO_PROMPT");
 			sysInfoPrompt.IsVisible = () => menuType == MenuType.SystemInfoPrompt;
@@ -306,14 +314,20 @@ namespace OpenRA.Mods.Common.Widgets.Logic
 
 						new Download(newsURL, cacheFile, e => { },
 							e => NewsDownloadComplete(e, cacheFile, currentNews,
-								() => newsButton.AttachPanel(newsPanel)));
+								() => OpenNewsPanel(newsButton)));
 					}
 
-					newsButton.OnClick = () => newsButton.AttachPanel(newsPanel);
+					newsButton.OnClick = () => OpenNewsPanel(newsButton);
 				}
 			}
 		}
 
+		void OpenNewsPanel(DropDownButtonWidget button)
+		{
+			newsOpen = true;
+			button.AttachPanel(newsPanel, () => newsOpen = false);
+		}
+
 		void OnRemoteDirectConnect(string host, int port)
 		{
 			SwitchMenu(MenuType.None);