commit 2236a7d

typing=done

 1@@ -94,7 +94,10 @@ func main() {
 2 						app.InputLeft()
 3 					}
 4 				case tcell.KeyBackspace2:
 5-					app.InputBackspace()
 6+					ok := app.InputBackspace()
 7+					if ok && app.InputLen() == 0 {
 8+						s.TypingStop(app.CurrentBuffer())
 9+					}
10 				case tcell.KeyEnter:
11 					buffer := app.CurrentBuffer()
12 					input := app.InputEnter()

 1@@ -129,6 +129,10 @@ func (ui *UI) Input() string {
 2 	return string(ui.textInput)
 3 }
 4 
 5+func (ui *UI) InputLen() int {
 6+	return len(ui.textInput)
 7+}
 8+
 9 func (ui *UI) InputRune(r rune) {
10 	ui.textInput = append(ui.textInput, r)
11 	ui.textCursor++
12@@ -149,14 +153,18 @@ func (ui *UI) InputLeft() {
13 	}
14 }
15 
16-func (ui *UI) InputBackspace() {
17-	if 0 < len(ui.textInput) {
18+func (ui *UI) InputBackspace() (ok bool) {
19+	ok = 0 < len(ui.textInput)
20+
21+	if ok {
22 		ui.textInput = ui.textInput[:len(ui.textInput)-1]
23 		if len(ui.textInput) < ui.textCursor {
24 			ui.textCursor = len(ui.textInput)
25 		}
26 		ui.drawEditor()
27 	}
28+
29+	return
30 }
31 
32 func (ui *UI) InputEnter() (content string) {