Class: AskTTY::Internal::TextInputPrompt

Inherits:
Object
  • Object
show all
Defined in:
lib/asktty/internal/text_input_prompt.rb

Instance Method Summary collapse

Constructor Details

#initialize(title:, details: nil, placeholder: nil, value: nil, validator: nil, multiline: false) ⇒ TextInputPrompt

Returns a new instance of TextInputPrompt.



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# File 'lib/asktty/internal/text_input_prompt.rb', line 6

def initialize(title:, details: nil, placeholder: nil, value: nil, validator: nil, multiline: false)
  @title = title.to_s
  @details = details&.to_s
  @placeholder = placeholder&.to_s
  @value = value.to_s
  @validator = validator
  @multiline = multiline
end

Instance Method Details

#ask ⇒ Object 



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# File 'lib/asktty/internal/text_input_prompt.rb', line 15

def ask
  value = @value.dup
  validation_active = false

  Terminal.open do |session|
    loop do
      session.render(
        render(
          value,
          width: session.width,
          show_cursor: true,
          error_message: validation_message(value, validation_active)
        )
      )

      key = session.read_key

      case key
      when :enter
        validation_active = true
        next if validation_message(value, validation_active)

        session.render(submitted_render(value, width: session.width))
        return value
      when :shift_enter, :ctrl_j
        next unless @multiline

        value << "\n"
        validation_active = true
      when :backspace
        updated_value = Rendering.chop_grapheme(value)
        validation_active ||= updated_value != value
        value = updated_value
      when String
        next unless printable?(key)

        value << key
        validation_active = true
      end
    end
  end
end