From 7787f642b9abef8c079bb4594ac122731cbe18f8 Mon Sep 17 00:00:00 2001
From: Tanguy Krotoff <tkrotoff@gmail.com>
Date: Wed, 15 Apr 2020 17:59:31 +0200
Subject: Fix crash when pressing ArrowUp the first time

---
 js/src/dropdown.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'js/src')

diff --git a/js/src/dropdown.js b/js/src/dropdown.js
index b1aa6d849..2fe707f15 100644
--- a/js/src/dropdown.js
+++ b/js/src/dropdown.js
@@ -479,7 +479,7 @@ class Dropdown {
       return
     }
 
-    let index = items.indexOf(event.target) || 0
+    let index = items.indexOf(event.target)
 
     if (event.key === ARROW_UP_KEY && index > 0) { // Up
       index--
@@ -489,6 +489,9 @@ class Dropdown {
       index++
     }
 
+    // index is -1 if the first keydown is an ArrowUp
+    index = index === -1 ? 0 : index
+
     items[index].focus()
   }
 
-- 
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