From 0b19b5e70e408bbaac5555b0b61a9451189406f8 Mon Sep 17 00:00:00 2001
From: Adnan Maolood <me@adnano.co>
Date: Tue, 24 Aug 2021 10:41:39 -0400
Subject: [PATCH] lib/ui/textinput: Optimize ensureScroll

---
 lib/ui/textinput.go | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/lib/ui/textinput.go b/lib/ui/textinput.go
index e96499a..d179bce 100644
--- a/lib/ui/textinput.go
+++ b/lib/ui/textinput.go
@@ -167,12 +167,12 @@ func (ti *TextInput) ensureScroll() {
 	if ti.ctx == nil {
 		return
 	}
-	// God why am I this lazy
-	for ti.index-ti.scroll >= ti.ctx.Width() {
-		ti.scroll++
+	w := ti.ctx.Width() - len(ti.prompt)
+	if ti.index >= ti.scroll+w {
+		ti.scroll = ti.index - w + 1
 	}
-	for ti.index-ti.scroll < 0 {
-		ti.scroll--
+	if ti.index < ti.scroll {
+		ti.scroll = ti.index
 	}
 }