From 899885b5dd27e5a734806378bdaa344dfac1b65f Mon Sep 17 00:00:00 2001
From: pixeltris <6952411+pixeltris@users.noreply.github.com>
Date: Thu, 22 Jul 2021 09:47:29 +0100
Subject: [PATCH] Fix crash on keymap.js files which fail to parse #159

---
 GK6X/KeyboardState.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/GK6X/KeyboardState.cs b/GK6X/KeyboardState.cs
index a124d75..8ce5bd9 100644
--- a/GK6X/KeyboardState.cs
+++ b/GK6X/KeyboardState.cs
@@ -243,6 +243,11 @@ private void LoadKeys()
             if (File.Exists(keysPath))
             {
                 List<object> deviceKeys = Json.Deserialize(File.ReadAllText(keysPath)) as List<object>;
+                if (deviceKeys == null)
+                {
+                    Debug.WriteLine("[WARNING] Failed to parse json '" + keysPath + "'");
+                    return;
+                }
                 foreach (object deviceKeyObj in deviceKeys)
                 {
                     Dictionary<string, object> deviceKey = deviceKeyObj as Dictionary<string, object>;