From 909f2fe4920bf0b0598823cea73d6ec43e3169e4 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Sun, 25 Sep 2022 23:56:09 +0900
Subject: [PATCH] internal/ui: bug fix: make inFrame concurrent-safe

Updates #1816
---
 internal/ui/ui_glfw.go | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/internal/ui/ui_glfw.go b/internal/ui/ui_glfw.go
index 18a10fb56..3dd6dcbad 100644
--- a/internal/ui/ui_glfw.go
+++ b/internal/ui/ui_glfw.go
@@ -728,11 +728,15 @@ func (u *userInterfaceImpl) createWindow(width, height int) error {
 }
 
 func (u *userInterfaceImpl) beginFrame() {
-	u.inFrame = true
+	u.t.Call(func() {
+		u.inFrame = true
+	})
 }
 
 func (u *userInterfaceImpl) endFrame() {
-	u.inFrame = false
+	u.t.Call(func() {
+		u.inFrame = false
+	})
 }
 
 // registerWindowSetSizeCallback must be called from the main thread.