From d206949f6258db36060af3e84fdae15cb7b9a45c Mon Sep 17 00:00:00 2001
From: Junegunn Choi <junegunn.c@gmail.com>
Date: Tue, 8 Nov 2016 03:07:26 +0900
Subject: [PATCH] Wait for additional keys after ESC for up to 100ms

Close #661
---
 src/tui/ncurses.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/src/tui/ncurses.go b/src/tui/ncurses.go
index d55c1c8..16a29fc 100644
--- a/src/tui/ncurses.go
+++ b/src/tui/ncurses.go
@@ -295,13 +295,24 @@ func getch(nonblock bool) int {
 
 func GetBytes() []byte {
 	c := getch(false)
+	retries := 0
+	if c == 27 {
+		// Wait for additional keys after ESC for 100ms (10 * 10ms)
+		retries = 10
+	}
 	_buf = append(_buf, byte(c))
 
 	for {
 		c = getch(true)
 		if c == -1 {
+			if retries > 0 {
+				retries--
+				time.Sleep(10 * time.Millisecond)
+				continue
+			}
 			break
 		}
+		retries = 0
 		_buf = append(_buf, byte(c))
 	}