Toggle "Pomodoro Mode" under Gnome (using keyboard typing break)

pomodoro.rb

#! /usr/bin/env ruby
#
#  Script to turn "pomodoro mode" on/off in Gnome.
#
#  Gnome has a little-known feature to put a timer around "typing
#  breaks". This script makes it easy to turn on and off from the
#  command line (or gnome-do, or what-have-you).
#

current_value = %x{gconftool --get /desktop/gnome/typing_break/enabled}.chomp

enabled = current_value != "true"

settings = {
  "enabled" => enabled,
  "type_time" => 25,
  "break_time" => 5,
  "allow_postpone" => true,
}

settings.each do |key, value|
  if TrueClass === value || FalseClass === value
    system "gconftool --type bool --set /desktop/gnome/typing_break/#{key} #{value}"
  elsif Fixnum === value
    system "gconftool --type int --set /desktop/gnome/typing_break/#{key} #{value}"
  end
end