From 06b031a443e0092e8b5ef511e64a45f781bd7e4a Mon Sep 17 00:00:00 2001
From: zhaokun <zhaokun@tydic.com>
Date: Fri, 8 Apr 2022 16:48:01 +0800
Subject: [PATCH] fix: Fix the bug that the window will bind multiple focus
 events when hotkeys is called multiple times by different element option

---
 src/index.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/index.js b/src/index.js
index c65ffcf1..15ba9f39 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,7 +2,7 @@ import { addEvent, getMods, getKeys, compareArray } from './utils';
 import { _keyMap, _modifier, modifierMap, _mods, _handlers } from './var';
 
 let _downKeys = []; // 记录摁下的绑定键
-
+let winListendFocus = false; // window是否已经监听了focus事件
 let _scope = 'all'; // 默认热键范围
 const elementHasBindEvent = []; // 已绑定事件的节点记录
 
@@ -372,9 +372,12 @@ function hotkeys(key, option, method) {
     addEvent(element, 'keydown', (e) => {
       dispatch(e);
     });
-    addEvent(window, 'focus', () => {
-      _downKeys = [];
-    });
+    if (!winListendFocus) {
+      winListendFocus = true;
+      addEvent(window, 'focus', () => {
+        _downKeys = [];
+      });
+    }
     addEvent(element, 'keyup', (e) => {
       dispatch(e);
       clearModifier(e);