From 6a6d7ba84e778d1e5917f905748fe752a8712016 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Fri, 19 Feb 2021 18:39:36 -0500
Subject: Fix wanakana.unbind throwing an error (#1422)

---
 ext/js/display/search-display-controller.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/ext/js/display/search-display-controller.js b/ext/js/display/search-display-controller.js
index d1a4593f..c8025d62 100644
--- a/ext/js/display/search-display-controller.js
+++ b/ext/js/display/search-display-controller.js
@@ -33,6 +33,7 @@ class SearchDisplayController {
         this._queryInputEvents = new EventListenerCollection();
         this._queryInputEventsSetup = false;
         this._wanakanaEnabled = false;
+        this._wanakanaBound = false;
         this._introVisible = true;
         this._introAnimationTimer = null;
         this._clipboardMonitorEnabled = false;
@@ -223,9 +224,15 @@ class SearchDisplayController {
 
         this._wanakanaEnabled = enabled;
         if (enabled) {
-            wanakana.bind(input);
+            if (!this._wanakanaBound) {
+                wanakana.bind(input);
+                this._wanakanaBound = true;
+            }
         } else {
-            wanakana.unbind(input);
+            if (this._wanakanaBound) {
+                wanakana.unbind(input);
+                this._wanakanaBound = true;
+            }
         }
 
         this._queryInputEvents.addEventListener(input, 'input', this._onSearchInput.bind(this), false);
-- 
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