indicate when the user is scrolled up

2 files changed, 22 insertions, 2 deletions

diff --git a/client/buffer/buffer.go b/client/buffer/buffer.go
index 921ad00..3fea156 100644
--- a/client/buffer/buffer.go
+++ b/client/buffer/buffer.go
@@ -77,6 +77,10 @@ func (b *Buffer) ScrollBottom() {
 	b.scroll.ToStart()
 }
 
+func (b *Buffer) ScrollPos() int {
+	return b.scroll.Get()
+}
+
 func (b *Buffer) AtBottom() bool {
 	return b.scroll.AtFirst()
 }
diff --git a/client/ui.go b/client/ui.go
index 2fc71f6..37b7d4e 100644
--- a/client/ui.go
+++ b/client/ui.go
@@ -65,13 +65,29 @@ func (a *application) show() {
 	})
 
 	a.getWin().Buffer().Show("buffer")
-	tui.Push("status", tui.Box {
-		Width: tui.Fill, Height: tui.BoxSize(1), Dir: tui.Right,
+	tui.Push("input border", tui.Box {
+		Width: tui.Fill, Height: 1, Dir: tui.Left,
 		Style: &tui.Style {Bg: tui.White, Fg: tui.Black},
 	})
+
+	if a.getWin().Buffer().ScrollPos() > 0 {
+		tui.Push("", tui.Box {Width: tui.TextSize, Height: 1, NoWrap: true})
+		if a.getWin().Buffer().AtTop() {
+			tui.Text("[TOP]", nil)
+		} else {
+			tui.Text("[MORE]", nil)
+		}
+		tui.Pop()
+	}
+	tui.Push("", tui.Box {Width: tui.Fill, Height: 1})
+	tui.Pop()
+
+	tui.Push("status", tui.Box {Width: tui.TextSize, Height: 1, NoWrap: true})
 	a.getWin().ShowStatusLine()
 	tui.Pop()
 
+	tui.Pop()
+
 	tui.Push("input container", tui.Box {
 		Width: tui.Fill, Height: tui.Children, Dir: tui.Right,
 	})