Class: Clicker::Program

Inherits:
Object
  • Object
show all
Defined in:
lib/clicker/program.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Program

Returns a new instance of Program.



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# File 'lib/clicker/program.rb', line 7

def initialize
  @mode = :normal
  OptionParser.new do |opt|
    opt.on('--start', 'start as a daemon') { @mode = :start}
    opt.on('--stop', 'stop the daemon') { @mode = :stop }
    opt.on('-v', '--version', 'print version information and exit') { print_version; exit 0 }
    opt.parse!(ARGV)
  end

  @lock = LaunchLock.new('clicker')
end

Instance Method Details

#do_run ⇒ Object 



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# File 'lib/clicker/program.rb', line 68

def do_run
  model = KeyboardSoundModel.new
  begin
    io = IO.popen("evtest /dev/input/by-path/platform-i8042-serio-0-event-kbd", 'r')
  rescue Errno::ENOENT
    raise 'evtest command not found.'
  end

  loop do
    IO.select([io], [], [])

    line = io.gets
    if line == nil
      break
    elsif line =~ /^Event: time \d+\.\d+, type 1 \(EV_KEY\), code (\d+) \(KEY_.*?\), value (\d+)$/
      code, value = $1.to_i, $2.to_i

      case value
      when 0
        model.deactivate_key(code)
      when 1
        model.activate_key(code)
      when 2
        model.repeat_key(code)
      end
    end
    model.update
  end
rescue RuntimeError => e
  STDERR.puts "Error: #{e.to_s}"
  exit 1
rescue Interrupt
end

#print_version ⇒ Object 



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# File 'lib/clicker/program.rb', line 19

def print_version
  STDERR.puts "clicker #{Clicker::VERSION}"
  STDERR.puts "Copyright © 2016 Yoteichi"
end

#run ⇒ Object 



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# File 'lib/clicker/program.rb', line 24

def run
  case @mode
  when :normal
    success = @lock.try_lock do
      do_run
    end

    unless success
      STDERR.puts("Error: another instance of clicker is running. (PID #{@lock.owner})")
      STDERR.puts("the lock file is at #{@lock.lock_file_path}.")
      exit 1
    end
  when :start
    if !@lock.locked?
      if fork == nil
        if fork == nil
          success = @lock.try_lock do 
            do_run
          end
          unless success 
            # ここでは端末から切り離されているので出来ることはない。
            exit 1
          end
        end
      end
    else
      STDERR.puts("Error: another instance of clicker seems to be running. (PID #{@lock.owner})")
      STDERR.puts("the lock file is at #{@lock.lock_file_path}.")
      exit 1
    end
  when :stop
    if @lock.locked?
      owner = @lock.owner
      if @lock.unlock
        STDERR.puts("SIGTERM has been sent to PID #{owner}.")
      else
        STDERR.puts("failed to unlock")
      end
    else
      STDERR.puts("no instance is running.")
    end
  end
end