From f7a2c3d02c3268cedbf074abbcd463c92125b245 Mon Sep 17 00:00:00 2001
From: elexis <elexis@wildfiregames.com>
Date: Tue, 28 Mar 2017 23:36:55 +0000
Subject: [PATCH] Fix a934dfad5f, add an early return when pressing the
 massbarter hotkey in observermode.

Differential Revision: https://code.wildfiregames.com/D273
Reviewed By: user1
This was SVN commit r19358.
---
 binaries/data/mods/public/gui/session/menu.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/binaries/data/mods/public/gui/session/menu.js b/binaries/data/mods/public/gui/session/menu.js
index ce2c22db0c..92cc1449e4 100644
--- a/binaries/data/mods/public/gui/session/menu.js
+++ b/binaries/data/mods/public/gui/session/menu.js
@@ -793,7 +793,11 @@ function barterUpdateCommon(resourceCode, idx, prefix, player)
 
 function updateBarterButtons()
 {
-	let canBarter = GetSimState().players[g_ViewedPlayer].canBarter;
+	let playerState = GetSimState().players[g_ViewedPlayer];
+	if (!playerState)
+		return;
+
+	let canBarter = playerState.canBarter;
 	Engine.GetGUIObjectByName("barterNoMarketsMessage").hidden = canBarter;
 	Engine.GetGUIObjectByName("barterResources").hidden = !canBarter;
 	Engine.GetGUIObjectByName("barterHelp").hidden = !canBarter;