From aac7ada713118334a5fcd1fbc006c3d1cba65e9a Mon Sep 17 00:00:00 2001
From: "Govan, Gordon" <ggovan@scottlogic.co.uk>
Date: Thu, 13 Jul 2017 17:12:19 +0100
Subject: [PATCH] fix: numpad input on IE.

---
 src/finput.js      |  4 ++--
 src/keyHandlers.js | 18 +++++++++++++++---
 2 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/finput.js b/src/finput.js
index 32361f2..95c0ed7 100644
--- a/src/finput.js
+++ b/src/finput.js
@@ -103,11 +103,11 @@ class Finput {
       },
       {
         type: ACTION_TYPES.DECIMAL,
-        names: [this.options.decimal]
+        names: [this.options.decimal, 'decimal']
       },
       {
         type: ACTION_TYPES.THOUSANDS,
-        names: [this.options.thousands]
+        names: [this.options.thousands, 'separator']
       },
       {
         type: ACTION_TYPES.SHORTCUT,
diff --git a/src/keyHandlers.js b/src/keyHandlers.js
index a03caf8..213a30a 100644
--- a/src/keyHandlers.js
+++ b/src/keyHandlers.js
@@ -7,6 +7,14 @@
 import { RANGE } from './constants';
 import helpers from './helpers';
 
+// Older browsers use these for the 'key' element of KeyboardEvents for the numpad.
+const numpadKeys = [
+  'add',
+  'subtract',
+  'multiply',
+  'divide'
+];
+
 module.exports = {
 
   /**
@@ -244,9 +252,13 @@ module.exports = {
    * @param {keyInfo} Information about the pressed key
    */
   onUnknown: function (currentState, keyInfo) {
-    // all printable characters have a key with length of 1 
-    // if a character has got this far it is an invalid character
-    const isInvalid = keyInfo.keyName.length === 1 && !keyInfo.modifierKey;
+    // most printable characters have a key with length of 1,
+    // the numpad characters may have textual keys on older browsers
+    const isPrintableCharacter = keyInfo.keyName.length === 1
+      || numpadKeys.indexOf(keyInfo.keyName) > -1;
+
+    // all printable characters are invalid, unless it is a command/shortcut
+    const isInvalid = isPrintableCharacter && !keyInfo.modifierKey;
     const newState = { ...currentState };
     newState.valid = !isInvalid;