Fix title option

prompt/option.go

@@ -20,7 +20,7 @@ func WriterOption(x ConsoleWriter) option {
 
 func TitleOption(x string) option {
 	return func(p *Prompt) error {
-		p.title = x
+		p.renderer.title = x
 		return nil
 	}
 }
@@ -54,7 +54,6 @@ func NewPrompt(executor Executor, completer Completer, opts ...option) *Prompt {
 			prefixColor: "green",
 			out:         &VT100Writer{fd: syscall.Stdout},
 		},
-		title:     "",
 		buf:       NewBuffer(),
 		executor:  executor,
 		completer: completer,

prompt/prompt.go

@@ -14,7 +14,6 @@ type Prompt struct {
 	in        ConsoleParser
 	buf       *Buffer
 	renderer  *Render
-	title     string
 	executor  Executor
 	completer Completer
 	chosen    int  // -1 means nothing one is chosen.

prompt/render.go

@@ -3,7 +3,7 @@ package prompt
 type Render struct {
 	prefix         string
 	prefixColor    string
-	Title          string
+	title          string
 	out            ConsoleWriter
 	row            uint16
 	col            uint16
@@ -11,8 +11,8 @@ type Render struct {
 }
 
 func (r *Render) Setup() {
-	if r.Title != "" {
-		r.out.SetTitle(r.Title)
+	if r.title != "" {
+		r.out.SetTitle(r.title)
 	}
 	r.renderPrefix()
 	r.out.Flush()