Class: Veewee::Provider::Core::Helper::Scancode

Inherits:
Object
  • Object
show all
Defined in:
lib/veewee/provider/core/helper/scancode.rb

Class Method Summary collapse

Class Method Details

.string_to_keycode(thestring) ⇒ Object 



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# File 'lib/veewee/provider/core/helper/scancode.rb', line 7

def self.string_to_keycode(thestring)

  #http://www.win.tue.nl/~aeb/linux/kbd/scancodes-1.html

  # keycode hash, seeded with 'Tab' - which is special as it's longer than 1 char
  k = { 'Tab' => '0f 8f' }
  
  # add keycodes

  # "pure" keys (no modifier keys)
  lower_keys = {
    '1234567890-='  => 0x02,
    'qwertyuiop[]'  => 0x10,
    'asdfghjkl;\'`' => 0x1e,
    '\\zxcvbnm,./'  => 0x2b
  }.each do |keys, offset|
    keys.split('').each_with_index do |key, idx|
      k[key] = sprintf('%02x %02x', idx + offset, idx + offset + 0x80)
    end
  end

  # upcase keys (with shift)
  {
    '!@#$%^&*()_+'  => 0x02,
    'QWERTYUIOP{}'  => 0x10,
    'ASDFGHJKL:"~'  => 0x1e,
    '|ZXCVBNM<>?'   => 0x2b
  }.each do |keys, offset|
    keys.split('').each_with_index do |key, idx|
      k[key] = sprintf('2a %02x aa %02x', idx + offset, idx + offset + 0x80)
    end
  end
  
  special=Hash.new;
  special['<Enter>'] = '1c 9c';
  special['<Backspace>'] = '0e 8e';
  special['<Spacebar>'] = '39 b9';
  special['<Return>'] = '1c 9c'
  special['<Esc>'] = '01 81';
  special['<Tab>'] = '0f 8f';
  special['<KillX>'] = '1d 38 0e b8';
  special['<Wait>'] = 'wait';

  special['<Up>'] = '48 c8';
  special['<Down>'] = '50 d0';
  special['<PageUp>'] = '49 c9';
  special['<PageDown>'] = '51 d1';
  special['<End>'] = '4f cf';
  special['<Insert>'] = '52 d2';
  special['<Delete>'] = '53 d3';
  special['<Left>'] = '4b cb';
  special['<Right>'] = '4d cd';
  special['<Home>'] = '47 c7';

  # F1 .. F10
  (1..10).each { |num| special["<F#{num}>"] = sprintf('%02x', num + 0x3a) }

  keycodes=''
  thestring.gsub!(/ /,"<Spacebar>")

  until thestring.length == 0
    nospecial=true;
    special.keys.each { |key|
      if thestring.start_with?(key)
        #take thestring
        #check if it starts with a special key + pop special string
        keycodes=keycodes+special[key]+' ';
        thestring=thestring.slice(key.length,thestring.length-key.length)
        nospecial=false;
        break;
      end
    }
    if nospecial
      code=k[thestring.slice(0,1)]
      if !code.nil?
        keycodes=keycodes+code+' '
      else
        ui.error "no scan code for #{thestring.slice(0,1)}"
      end
      #pop one
      thestring=thestring.slice(1,thestring.length-1)
    end
  end

  return keycodes
end