Class: AskTTY::ConfirmPrompt

Inherits:
Object
  • Object
show all
Defined in:
lib/asktty/prompts/confirm_prompt.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(title:, details: nil, value: false, validator: nil) ⇒ ConfirmPrompt

Returns a new instance of ConfirmPrompt.

Raises:



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# File 'lib/asktty/prompts/confirm_prompt.rb', line 9

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

  raise AskTTY::Error, "value must be true or false" unless [true, false].include?(value)

  @value = value
  @validator = validator
end

Class Method Details

.ask(title:, details: nil, value: false, &validator) ⇒ Object 



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# File 'lib/asktty/prompts/confirm_prompt.rb', line 5

def self.ask(title:, details: nil, value: false, &validator)
  new(title: title, details: details, value: value, validator: validator).ask
end

Instance Method Details

#ask ⇒ Object 



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# File 'lib/asktty/prompts/confirm_prompt.rb', line 19

def ask
  validation_active = false

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

      case session.read_key
      when :enter
        validation_active = true
        next if validation_message(validation_active)

        session.render(submitted_render(width: session.width))
        return @value
      when :left, "h"
        previous_value = @value
        @value = true
        validation_active ||= @value != previous_value
      when :right, "l"
        previous_value = @value
        @value = false
        validation_active ||= @value != previous_value
      end
    end
  end
end