Class: Twterm::FilterQueryWindow

Inherits:
Object
  • Object
show all
Includes:
Curses, Singleton
Defined in:
lib/twterm/filter_query_window.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ FilterQueryWindow

Returns a new instance of FilterQueryWindow.



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# File 'lib/twterm/filter_query_window.rb', line 6

def initialize
  @window = stdscr.subwin(1, stdscr.maxx, stdscr.maxy - 1, 0)
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/twterm/filter_query_window.rb', line 71

def clear
  stdscr.setpos(stdscr.maxy - 1, 0)
  stdscr.addstr(' ' * window.maxx)
end

#input ⇒ Object 



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# File 'lib/twterm/filter_query_window.rb', line 10

def input
  clear
  stdscr.setpos(stdscr.maxy - 1, 0)
  stdscr.addch '/'

  Curses.timeout = 10
  raw

  chars = []
  str = ''

  loop do
    char = getch

    if char.nil?
      case chars.first
      when 3, 27 # cancel with <C-c> / Esc
        str = ''
        clear
        break
      when 4 # cancel with <C-d> when query is empty
        if str.empty?
          clear
          break
        end
      when 10 # submit with <C-j>
        break
      when 127 # backspace
        if str.empty?
          clear
          break
        end

        str.chop!
        chars = []
        clear
        stdscr.setpos(stdscr.maxy - 1, 0)
        stdscr.addstr("/#{str}")
      when 0..31
        # ignore control codes (\x00 - \x1f)
      else
        str << chars
          .map { |x| x.is_a?(String) ? x.ord : x }
          .pack('c*')
          .force_encoding('utf-8')
        chars = []
      end
    else
      chars << char
    end

    stdscr.setpos(stdscr.maxy - 1, 1)
    stdscr.addstr(str)
  end

  Curses.timeout = 0
  cbreak

  str
end

#resize ⇒ Object 



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# File 'lib/twterm/filter_query_window.rb', line 76

def resize
  @window.resize(1, stdscr.maxx)
  @window.move(stdscr.maxy - 1, 0)
end