feat(tui): show / hint when editor is empty (#1512)

internal/tui/components/chat/editor/editor.go

@@ -41,6 +41,7 @@ type Editor interface {
 	SetSession(session session.Session) tea.Cmd
 	IsCompletionsOpen() bool
 	HasAttachments() bool
+	IsEmpty() bool
 	Cursor() *tea.Cursor
 }
 
@@ -261,7 +262,7 @@ func (m *editorCmp) Update(msg tea.Msg) (util.Model, tea.Cmd) {
 		curIdx := m.textarea.Width()*cur.Y + cur.X
 		switch {
 		// Open command palette when "/" is pressed on empty prompt
-		case msg.String() == "/" && len(strings.TrimSpace(m.textarea.Value())) == 0:
+		case msg.String() == "/" && m.IsEmpty():
 			return m, util.CmdHandler(dialogs.OpenDialogMsg{
 				Model: commands.NewCommandDialog(m.session.ID),
 			})
@@ -542,6 +543,10 @@ func (c *editorCmp) HasAttachments() bool {
 	return len(c.attachments) > 0
 }
 
+func (c *editorCmp) IsEmpty() bool {
+	return strings.TrimSpace(c.textarea.Value()) == ""
+}
+
 func normalPromptFunc(info textarea.PromptInfo) string {
 	t := styles.CurrentTheme()
 	if info.LineNumber == 0 {

internal/tui/page/chat/chat.go

@@ -1024,6 +1024,9 @@ func (p *chatPage) Help() help.KeyMap {
 			key.WithKeys("ctrl+p"),
 			key.WithHelp("ctrl+p", "commands"),
 		)
+		if p.focusedPane == PanelTypeEditor && p.editor.IsEmpty() {
+			commandsBinding.SetHelp("/ or ctrl+p", "commands")
+		}
 		modelsBinding := key.NewBinding(
 			key.WithKeys("ctrl+m", "ctrl+l"),
 			key.WithHelp("ctrl+l", "models"),