Module: Pecorb

Extended by:
Console, Pecorb
Included in:
Pecorb
Defined in:
lib/pecorb.rb,
lib/pecorb/version.rb

Constant Summary collapse

VERSION = 
"1.1.0"

Constants included from Console

Console::CSI, Console::DOWN, Console::LEFT, Console::RIGHT, Console::UP

Instance Method Summary collapse

Methods included from Console

backspace, black, blue, carriage_return, clear_screen, clear_to_eol, cyan, down, green, left, load_pos, magenta, output, print, puts, read_char, red, reset_color, right, save_pos, up, white, yellow

Instance Method Details

#prompt(items, prompt = "Select an item: ") ⇒ Object 



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# File 'lib/pecorb.rb', line 15

def prompt(items, prompt="Select an item: ")
  @displayed_items = @items = items
  @prompt = prompt

  print_menu

  while c = read_char
    case c
    when /[\r]/
      break
    when /[]/
      @input = ""
      break
    when /[]/
      clear_screen
      print_menu
    when "" # Backspace key
      next if @input.empty? || @cursor <= 0
      @input.slice!(@cursor-1)
      replace_input(@input)
      replace_items { filter_items(@items, @input) }
      backspace
      @cursor -= 1
    when Console::LEFT
      next unless @cursor > 0
      print c
      @cursor -= 1
    when Console::RIGHT
      next unless @cursor < @input.length
      print c
      @cursor += 1
    when Console::UP
      @selected = (@selected - 1) % @displayed_items.size
      replace_items { filter_items(@items, @input) }
    when Console::DOWN
      @selected = (@selected + 1) % @displayed_items.size
      replace_items { filter_items(@items, @input) }
    else
      @input.insert(@cursor, c)
      replace_input(@input)
      replace_items { filter_items(@items, @input) }
      print c
      @cursor += 1
    end
  end

  move_cursor_from_start_to_end
  output @displayed_items[@selected]
  @displayed_items[@selected]
end