Make the diplomacy panel consistent with cheats and menu.

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

@@ -23,13 +23,28 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 		ScrollPanelWidget diplomacyPanel;
 
 		[ObjectCreator.UseCtor]
-		public DiplomacyLogic(Widget widget, Action onExit, World world)
+		public DiplomacyLogic(Widget widget, Action onExit, World world, bool transient)
 		{
 			this.world = world;
 
 			diplomacyPanel = widget.Get<ScrollPanelWidget>("DIPLOMACY_PANEL");
 
 			LayoutPlayers();
+
+			var close = widget.GetOrNull<ButtonWidget>("CLOSE");
+			if (close != null)
+			{
+				close.OnClick = () =>
+				{
+					if (transient)
+					{
+						Ui.CloseWindow();
+						Ui.Root.RemoveChild(widget);
+					}
+
+					onExit();
+				};
+			}
 		}
 
 		void LayoutPlayers()

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

@@ -86,10 +86,13 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 			var playerWidgets = Game.LoadWidget(world, "PLAYER_WIDGETS", playerRoot, new WidgetArgs());
 
 			Widget diplomacy = null;
-			diplomacy = Game.LoadWidget(world, "DIPLOMACY", playerWidgets, new WidgetArgs
+			diplomacy = Game.LoadWidget(world, "INGAME_DIPLOMACY_BG", playerWidgets, new WidgetArgs
 			{
+				{ "transient", true },
 				{ "onExit", () => diplomacy.Visible = false }
 			});
+			diplomacy.Visible = false;
+
 			var diplomacyButton = playerWidgets.Get<ButtonWidget>("INGAME_DIPLOMACY_BUTTON");
 			diplomacyButton.OnClick = () => diplomacy.Visible ^= true;
 			var validPlayers = 0;

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

@@ -8,6 +8,7 @@
  */
 #endregion
 
+using System.Linq;
 using OpenRA.Mods.RA.Orders;
 using OpenRA.Widgets;
 
@@ -62,6 +63,14 @@ namespace OpenRA.Mods.RA.Widgets.Logic
 				options.OnClick = () => OpenMenuPanel(options);
 			}
 
+			var diplomacy = widget.GetOrNull<MenuButtonWidget>("DIPLOMACY_BUTTON");
+			if (diplomacy != null)
+			{
+				diplomacy.Visible = world.Players.Any(a => a != world.LocalPlayer && !a.NonCombatant);
+				diplomacy.IsDisabled = () => disableSystemButtons;
+				diplomacy.OnClick = () => OpenMenuPanel(diplomacy);
+			}
+
 			var debug = widget.GetOrNull<MenuButtonWidget>("DEBUG_BUTTON");
 			if (debug != null)
 			{

mods/ra/chrome/ingame-diplomacy.yaml

@@ -1,10 +1,9 @@
-Background@DIPLOMACY:
+Background@INGAME_DIPLOMACY_BG:
 	Logic: DiplomacyLogic
-	X: 25
-	Y: 50
+	X: (WINDOW_RIGHT - WIDTH)/2
+	Y: (WINDOW_BOTTOM - HEIGHT)/2
 	Width: 490
-	Height: 300
-	Visible: false
+	Height: 355
 	Children:
 		Label@LABEL_TITLE:
 			X: (PARENT_RIGHT - WIDTH)/2
@@ -44,7 +43,7 @@ Background@DIPLOMACY:
 			X: 20
 			Y: 67
 			Width: PARENT_RIGHT-40
-			Height: PARENT_BOTTOM-87
+			Height: PARENT_BOTTOM-87-35
 			ItemSpacing: 5
 			Children:
 				ScrollItem@TEAM_TEMPLATE:
@@ -82,3 +81,11 @@ Background@DIPLOMACY:
 							Width: 100
 							Height: PARENT_BOTTOM
 
+		Button@CLOSE:
+			X: PARENT_RIGHT-145
+			Y: PARENT_BOTTOM - 45
+			Width: 120
+			Height: 25
+			Text: Close
+			Key: escape
+			Font: Bold