Module: VER::Keyboard

Defined in:
lib/ver/keyboard.rb

Overview

avoid initialize

Constant Summary collapse

ESC =

keycode

27
ASCII =

TODO: make this section sane

(0..255).map{|c| c.chr }
CONTROL = 
ASCII.grep(/[[:cntrl:]]/)
PRINTABLE = 
ASCII.grep(/[[:print:]]/)
SPECIAL_KEYS = 
{
  [27, 79, 50, 81]              => 'F14',
  [27, 79, 50, 82]              => 'F15',
  [27, 79, 70]                  => 'end',
  [27, 79, 70]                  => 'end',
  [27, 79, 72]                  => 'home',
  [27, 79, 80]                  => 'F1',
  [27, 79, 81]                  => 'F2',
  [27, 79, 82]                  => 'F3',
  [27, 79, 83]                  => 'F4',
  [27, 91, 49, 126]             => 'end',
  [27, 91, 49, 126]             => 'home',
  [27, 91, 49, 49, 126]         => 'F1',
  [27, 91, 49, 50, 126]         => 'F2',
  [27, 91, 49, 51, 126]         => 'F3',
  [27, 91, 49, 52, 126]         => 'F4',
  [27, 91, 49, 52, 126]         => 'F4',
  [27, 91, 49, 53, 126]         => 'F5',
  [27, 91, 49, 55, 126]         => 'F6',
  [27, 91, 49, 56, 59, 50, 126] => 'F19',
  [27, 91, 49, 56, 59, 51, 126] => 'F7',
  [27, 91, 49, 59, 51, 65]      => 'ppage',
  [27, 91, 49, 59, 51, 66]      => 'npage',
  [27, 91, 49, 59, 53, 65]      => 'ppage',
  [27, 91, 49, 59, 53, 66]      => 'npage',
  [27, 91, 49, 59, 53, 70]      => 'M-<',
  [27, 91, 49, 59, 53, 72]      => 'M->',
  [27, 91, 50, 54, 126]         => 'F14',
  [27, 91, 50, 56, 126]         => 'F15',
  [27, 91, 51, 59, 51, 126]     => 'del',
  [27, 91, 52, 126]             => 'end',
  [27, 91, 55, 126]             => 'home',
  [27, 91, 55, 126]             => 'home',
  [27, 91, 56, 126]             => 'end',
  [27, 91, 56, 126]             => 'end',
  [27, 91, 65]                  => 'up',
  [27, 91, 66]                  => 'down',
  [27, 91, 67]                  => 'right',
  [27, 91, 68]                  => 'left',
  [27, 91, 70]                  => 'end',
  [27, 91, 72]                  => 'end',
  [27, 91, 72]                  => 'home',
  [27, 91, 91, 65]              => 'F1',
  [27, 91, 91, 66]              => 'F2',
  [27, 91, 91, 67]              => 'F3',
  [27, 91, 91, 68]              => 'F4',
  [27, 91, 91, 69]              => 'F5',
}
CONTROL_KEYS = 
{
  0   => 'C-space',
  1   => 'C-a',
  2   => 'C-b',
  3   => 'C-c',
  4   => 'C-d',
  5   => 'C-e',
  6   => 'C-f',
  7   => 'C-g',
  8   => 'C-h',
  9   => 'tab',
  10  => 'return', # C-j
  11  => 'C-k',
  12  => 'C-l',
  13  => 'return', # C-m
  14  => 'C-n',
  15  => 'C-o',
  16  => 'C-p',
  17  => 'C-q',
  18  => 'C-r',
  19  => 'C-s',
  20  => 'C-t',
  21  => 'C-u',
  22  => 'C-v',
  23  => 'C-w',
  24  => 'C-x',
  25  => 'C-y',
  26  => 'C-z', # FIXME: is usually suspend in shell job control
  # 27  => 'esc',
  32  => 'space',
  127 => 'backspace',
}
PRINTABLE_KEYS = 
{}
MOD_KEYS = 
{}
NCURSES_KEYS = 
{}

Class Method Summary collapse

Class Method Details

.focus=(receiver) ⇒ Object 



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# File 'lib/ver/keyboard.rb', line 8

def focus=(receiver)
  @stack = []
  @focus = receiver
  poll unless @polling
end

.poll ⇒ Object 



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# File 'lib/ver/keyboard.rb', line 14

def poll
  @polling = true

  while char = @focus.window.getch
    break if @focus.stopping? # XXX
    #break if VER.stopping?
    $log.debug("char: #{char} stakc: #{@stack.inspect}") if char != Ncurses::ERR
    if char == Ncurses::ERR # timeout or signal
      @focus.press('esc') if @stack == [ESC]
      @stack.clear
    elsif ready = resolve(char)
$log.debug("char: #{char} ready: #{ready}")
      @stack.clear
      @focus.press(ready)
    end
  end

ensure
  @polling = false
end

.resolve(char) ⇒ Object 



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# File 'lib/ver/keyboard.rb', line 35

def resolve(char)
  @stack << char

  if @stack.first == ESC
    MOD_KEYS[@stack] || SPECIAL_KEYS[@stack]
  else
    NCURSES_KEYS[char] || CONTROL_KEYS[char] || PRINTABLE_KEYS[char]
  end
end