From 1f2d046d3406977ef08f1e4224f9b3f5e67c2fd2 Mon Sep 17 00:00:00 2001
From: Oliver Brakmann <ob-web2013+github@posteo.net>
Date: Fri, 26 Aug 2016 10:40:27 +0200
Subject: [PATCH] Fix issuing orders when releasing RMB after
 standard-scrolling

---
 OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs b/OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs
index 6fd0057d0a..b9424f0dfc 100644
--- a/OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs
+++ b/OpenRA.Mods.Common/Widgets/ViewportControllerWidget.cs
@@ -35,6 +35,7 @@ namespace OpenRA.Mods.Common.Widgets
 		public int EdgeCornerScrollThreshold = 35;
 
 		int2? joystickScrollStart, joystickScrollEnd;
+		bool isStandardScrolling;
 
 		static readonly Dictionary<ScrollDirection, string> ScrollCursors = new Dictionary<ScrollDirection, string>
 		{
@@ -287,10 +288,19 @@ namespace OpenRA.Mods.Common.Widgets
 			{
 				if (mi.Event == MouseInputEvent.Move)
 				{
+					isStandardScrolling = true;
 					var d = scrollType == MouseScrollType.Inverted ? -1 : 1;
 					worldRenderer.Viewport.Scroll((Viewport.LastMousePos - mi.Location) * d, false);
 					return true;
 				}
+				else if (mi.Event == MouseInputEvent.Up)
+				{
+					var wasStandardScrolling = isStandardScrolling;
+					isStandardScrolling = false;
+
+					if (wasStandardScrolling)
+						return true;
+				}
 			}
 
 			// Tiberian Sun style click-and-drag scrolling