Method Show

interactive_select_printer.go:99–270

Show shows the interactive select menu and returns the selected entry.

(text ...string)

// Show shows the interactive select menu and returns the selected entry.
func (p *InteractiveSelectPrinter) Show(text ...string) (string, error) {
	// should be the first defer statement to make sure it is executed last
	// and all the needed cleanup can be done before
	cancel, exit := internal.NewCancelationSignal(p.OnInterruptFunc)
	defer exit()

	if len(text) == 0 || Sprint(text[0]) == "" {
		text = []string{p.DefaultText}
	}

	p.text = p.TextStyle.Sprint(text[0])
	p.fuzzySearchMatches = append([]string{}, p.Options...)

	if p.MaxHeight == 0 {
		p.MaxHeight = DefaultInteractiveSelect.MaxHeight
	}

	maxHeight := p.MaxHeight
	if maxHeight > len(p.fuzzySearchMatches) {
		maxHeight = len(p.fuzzySearchMatches)
	}

	if len(p.Options) == 0 {
		return "", fmt.Errorf("no options provided")
	}

	p.displayedOptions = append([]string{}, p.fuzzySearchMatches[:maxHeight]...)
	p.displayedOptionsStart = 0
	p.displayedOptionsEnd = maxHeight

	// Get index of default option
	if p.DefaultOption != "" {
		for i, option := range p.Options {
			if option == p.DefaultOption {
				p.selectedOption = i
				if i > 0 && len(p.Options) > maxHeight {
					p.displayedOptionsEnd = int(math.Min(float64(i-1+maxHeight), float64(len(p.Options))))
					p.displayedOptionsStart = p.displayedOptionsEnd - maxHeight
				} else {
					p.displayedOptionsStart = 0
					p.displayedOptionsEnd = maxHeight
				}
				p.displayedOptions = p.Options[p.displayedOptionsStart:p.displayedOptionsEnd]
				break
			}
		}
	}

	area, err := DefaultArea.Start(p.renderSelectMenu())
	defer area.Stop()
	if err != nil {
		return "", fmt.Errorf("could not start area: %w", err)
	}

	area.Update(p.renderSelectMenu())

	cursor.Hide()
	defer cursor.Show()