Module: MakeMenu::Console::Prompter

Defined in:
lib/make_menu/console/prompter.rb

Constant Summary collapse

PressedEscape = 
Class.new(StandardError)

Class Method Summary collapse

Class Method Details

.prompt(text = '', input: '', obscure: false, value_color: :light_yellow) ⇒ Object 



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# File 'lib/make_menu/console/prompter.rb', line 28

def self.prompt(text = '', input: '', obscure: false, value_color: :light_yellow)
  text = text.bold

  print "\r#{text}#{input.color(value_color)}"

  char = ''

  until !char.empty? && char.ord == 13
    char = $stdin.getch

    case char.ord
    when 127
      # BACKSPACE
      input = input[0..-2]
      print "\r#{text}#{' ' * input.size} "
      print "\r#{text}#{obscure ? '*'.color(value_color) * input.size : input.color(value_color)}"

    when 27
      # ESC
      raise PressedEscape if input.empty?

      print "\r#{text}#{' ' * input.size} "
      print "\r#{text}"

      input = ''
      char = ''

    when 13
      # ENTER

    else
      input += char
      if obscure
        print '*'.color(value_color)
      else
        print char.color(value_color)
      end
    end
  end

  print "\r#{text}#{' ' * input.size} "
  print "\r#{text}"

  input
end

.prompt_and_save(text, file:, obscure: false) ⇒ Object 



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# File 'lib/make_menu/console/prompter.rb', line 10

def self.prompt_and_save(text, file:, obscure: false)
  if file.is_a? Symbol
    file = ".#{file}"
  end

  current = File.exist?(file) ? File.read(file).strip : ''

  response = prompt(text, input: current, obscure: obscure)

  if response.empty?
    File.delete(file) if File.exist?(file)
  else
    File.write(file, response)
  end

  return response
end