From 0ec5b7b8572fa023019c049c3b9e5d3358b70e6c Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Fri, 23 Jul 2021 02:15:41 +0900
Subject: [PATCH] internal/uidriver/js: Bug fix: Suppress warnings on
 SetFullscreen

Closes #1727
---
 internal/uidriver/js/ui_js.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/internal/uidriver/js/ui_js.go b/internal/uidriver/js/ui_js.go
index 9afb412a7..8df5fcb70 100644
--- a/internal/uidriver/js/ui_js.go
+++ b/internal/uidriver/js/ui_js.go
@@ -98,6 +98,9 @@ func (u *UserInterface) SetFullscreen(fullscreen bool) {
 	if !document.Truthy() {
 		return
 	}
+	if fullscreen == document.Get("fullscreenElement").Truthy() {
+		return
+	}
 	if fullscreen {
 		f := canvas.Get("requestFullscreen")
 		if !f.Truthy() {