From abcbfe888c49ff22d25d18373a10b9ff0802865f Mon Sep 17 00:00:00 2001
From: ludanxer <haoran.sun@sap.com>
Date: Mon, 14 Oct 2019 15:12:43 +0800
Subject: [PATCH 1/2] update isLastItemOfArray to isOpenAndLastItemOfArray

---
 .../theme-default/components/DropdownLink.vue          | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/packages/@vuepress/theme-default/components/DropdownLink.vue b/packages/@vuepress/theme-default/components/DropdownLink.vue
index 7812984a7b..9d65df043e 100644
--- a/packages/@vuepress/theme-default/components/DropdownLink.vue
+++ b/packages/@vuepress/theme-default/components/DropdownLink.vue
@@ -39,8 +39,8 @@
             >
               <NavLink
                 @focusout="
-                  isLastItemOfArray(childSubItem, subItem.items) &&
-                  isLastItemOfArray(subItem, item.items) &&
+                  isOpenAndLastItemOfArray(childSubItem, subItem.items) &&
+                  isOpenAndLastItemOfArray(subItem, item.items) &&
                   toggle()
                 "
                 :item="childSubItem"/>
@@ -49,7 +49,7 @@
 
           <NavLink
             v-else
-            @focusout="isLastItemOfArray(subItem, item.items) && toggle()"
+            @focusout="isOpenAndLastItemOfArray(subItem, item.items) && toggle()"
             :item="subItem"
           />
         </li>
@@ -90,8 +90,8 @@ export default {
       this.open = !this.open
     },
 
-    isLastItemOfArray (item, array) {
-      return last(array) === item
+    isOpenAndLastItemOfArray (item, array) {
+      return this.open && last(array) === item
     }
   },
 

From 5e642c4edaf34b6871fa1e2bd8221866a0475185 Mon Sep 17 00:00:00 2001
From: Franck <abgrallkefran@gmail.com>
Date: Mon, 14 Oct 2019 14:00:56 +0200
Subject: [PATCH 2/2] refactor: Improve code to fix the bug

---
 .../theme-default/components/DropdownLink.vue  | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/packages/@vuepress/theme-default/components/DropdownLink.vue b/packages/@vuepress/theme-default/components/DropdownLink.vue
index 9d65df043e..d67f85cba4 100644
--- a/packages/@vuepress/theme-default/components/DropdownLink.vue
+++ b/packages/@vuepress/theme-default/components/DropdownLink.vue
@@ -7,7 +7,7 @@
       class="dropdown-title"
       type="button"
       :aria-label="dropdownAriaLabel"
-      @click="toggle"
+      @click="setOpen(!open)"
     >
       <span class="title">{{ item.text }}</span>
       <span
@@ -39,9 +39,9 @@
             >
               <NavLink
                 @focusout="
-                  isOpenAndLastItemOfArray(childSubItem, subItem.items) &&
-                  isOpenAndLastItemOfArray(subItem, item.items) &&
-                  toggle()
+                  isLastItemOfArray(childSubItem, subItem.items) &&
+                  isLastItemOfArray(subItem, item.items) &&
+                  setOpen(false)
                 "
                 :item="childSubItem"/>
             </li>
@@ -49,7 +49,7 @@
 
           <NavLink
             v-else
-            @focusout="isOpenAndLastItemOfArray(subItem, item.items) && toggle()"
+            @focusout="isLastItemOfArray(subItem, item.items) && setOpen(false)"
             :item="subItem"
           />
         </li>
@@ -86,12 +86,12 @@ export default {
   },
 
   methods: {
-    toggle () {
-      this.open = !this.open
+    setOpen (value) {
+      this.open = value
     },
 
-    isOpenAndLastItemOfArray (item, array) {
-      return this.open && last(array) === item
+    isLastItemOfArray (item, array) {
+      return last(array) === item
     }
   },