From d9dc12477c685cdc04c9d644357f1c86335fc50b Mon Sep 17 00:00:00 2001
From: jberg <jordannealberg@gmail.com>
Date: Tue, 15 May 2018 19:00:31 -0700
Subject: [PATCH] bind and remove input function

---
 js/components/MilkdropWindow/index.js | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/js/components/MilkdropWindow/index.js b/js/components/MilkdropWindow/index.js
index 899086b6..7a648ac9 100644
--- a/js/components/MilkdropWindow/index.js
+++ b/js/components/MilkdropWindow/index.js
@@ -44,6 +44,8 @@ class MilkdropWindow extends React.Component {
       "butterchurn"
     );
 
+    this._handleKeyboardInput = this._handleKeyboardInput.bind(this);
+
     require.ensure(
       ["butterchurn-presets"],
       require => {
@@ -54,9 +56,7 @@ class MilkdropWindow extends React.Component {
         this.cycleInterval = setInterval(() => {
           this._nextPreset(PRESET_TRANSITION_SECONDS);
         }, MILLISECONDS_BETWEEN_PRESET_TRANSITIONS);
-        document.addEventListener("keydown", e => {
-          this._handleKeyboardInput(e);
-        });
+        document.addEventListener("keydown", this._handleKeyboardInput);
       },
       e => {
         console.error("Error loading Butterchurn presets", e);
@@ -67,6 +67,7 @@ class MilkdropWindow extends React.Component {
   componentWillUnmount() {
     this._pauseViz();
     this._stopCycling();
+    document.removeEventListener("keydown", this._handleKeyboardInput);
   }
   componentDidUpdate(prevProps) {
     if (