From b376a3d80d3ce7a9106bf42b890167ecc992f912 Mon Sep 17 00:00:00 2001
From: Siju Samson <sijusamson@gmail.com>
Date: Thu, 4 Feb 2021 01:33:21 +0530
Subject: Fix dropdown keys to open menu (#32750)

Co-authored-by: XhmikosR <xhmikosr@gmail.com>
---
 js/src/dropdown.js | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'js/src')

diff --git a/js/src/dropdown.js b/js/src/dropdown.js
index 69b99e628..3667fa111 100644
--- a/js/src/dropdown.js
+++ b/js/src/dropdown.js
@@ -468,6 +468,12 @@ class Dropdown extends BaseComponent {
       return
     }
 
+    if (!isActive && (event.key === ARROW_UP_KEY || event.key === ARROW_DOWN_KEY)) {
+      const button = this.matches(SELECTOR_DATA_TOGGLE) ? this : SelectorEngine.prev(this, SELECTOR_DATA_TOGGLE)[0]
+      button.click()
+      return
+    }
+
     if (!isActive || event.key === SPACE_KEY) {
       Dropdown.clearMenus()
       return
-- 
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