From b86f1771e4f8b5cb005bb6338a93025595553389 Mon Sep 17 00:00:00 2001
From: Hajime Hoshi <hajimehoshi@gmail.com>
Date: Tue, 29 Nov 2016 01:40:06 +0900
Subject: [PATCH] ui: Add goroutine so that blocking is available everywhere

---
 internal/ui/ui_js.go | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/internal/ui/ui_js.go b/internal/ui/ui_js.go
index 5b61354ab..2f36c8d41 100644
--- a/internal/ui/ui_js.go
+++ b/internal/ui/ui_js.go
@@ -96,12 +96,14 @@ func (u *userInterface) loop(g GraphicsContext) error {
 	ch := make(chan error)
 	var f func()
 	f = func() {
-		if err := u.update(g); err != nil {
-			ch <- err
-			close(ch)
-			return
-		}
-		js.Global.Get("window").Call("requestAnimationFrame", f)
+		go func() {
+			if err := u.update(g); err != nil {
+				ch <- err
+				close(ch)
+				return
+			}
+			js.Global.Get("window").Call("requestAnimationFrame", f)
+		}()
 	}
 	f()
 	return <-ch