From 4ee3a76a747f6a8bf33ec31c02771aad615c851e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=BCrg=20Lehni?= <juerg@scratchdisk.com>
Date: Sun, 20 Dec 2015 11:32:16 +0100
Subject: [PATCH] Improve handling of special characters and control sequences.

---
 src/event/Key.js | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/event/Key.js b/src/event/Key.js
index 8af273a5..3f611eb4 100644
--- a/src/event/Key.js
+++ b/src/event/Key.js
@@ -18,6 +18,7 @@ var Key = new function() {
     var keyLookup = {
             // Unify different naming scheme, e.g. Gecko, IE, ...
             ' ': 'space',
+            '\t': 'tab',
             'Spacebar': 'space',
             'Win': 'meta',
             'Del': 'delete',
@@ -155,8 +156,12 @@ var Key = new function() {
 
         keypress: function(event) {
             if (downKey) {
-                handleKey(true, downKey, String.fromCharCode(event.charCode),
-                        event);
+                var code = event.charCode;
+                // Try event.charCode if its above 32 and fall back onto the
+                // key value if it's a single character, empty otherwise.
+                handleKey(true, downKey, code >= 32
+                        ? String.fromCharCode(code)
+                        : downKey.length > 1 ? '' : downKey, event);
                 downKey = null;
             }
         },