From 5719bfb2648dbef38a8a281b5263d719c0e4cd06 Mon Sep 17 00:00:00 2001
From: Eduardo Luiz Schilling <35701560+elschilling@users.noreply.github.com>
Date: Wed, 27 Dec 2023 10:50:23 -0300
Subject: [PATCH] fix(useMouse): handle Touch class compatibility for Firefox
 (#3679)

---
 packages/core/useMouse/demo.vue | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/packages/core/useMouse/demo.vue b/packages/core/useMouse/demo.vue
index 1b8b1fef4a4..dd102fc66c1 100644
--- a/packages/core/useMouse/demo.vue
+++ b/packages/core/useMouse/demo.vue
@@ -9,10 +9,12 @@ const parentEl = useParentElement()
 const mouseDefault = reactive(useMouse())
 const textDefault = stringify(mouseDefault)
 
-const extractor: UseMouseEventExtractor = event => (event instanceof Touch
-  ? null
-  : [event.offsetX, event.offsetY]
-)
+const extractor: UseMouseEventExtractor = (event) => {
+  if (typeof Touch !== 'undefined' && event instanceof Touch)
+    return null
+  else
+    return [event.offsetX, event.offsetY]
+}
 
 const mouseWithExtractor = reactive(useMouse({ target: parentEl, type: extractor }))
 const textWithExtractor = stringify(mouseWithExtractor)