ibus_toggle のRuby版(iBus 1.4以下対応) ruby-dbusが必要($ gem install ruby-dbus)

ibus_toggle.rb

#! /usr/bin/ruby
# -*- coding: utf-8 -*-

require 'dbus'

IBUS_SERVICE="org.freedesktop.IBus"
IBUS_PATH_IBUS="/org/freedesktop/IBus"
IBUS_INTERFACE_IBUS="org.freedesktop.IBus"
IBUS_INTERFACE_INPUTCONTEXT="org.freedesktop.IBus.InputContext"

def get_address
  Dir.glob(ENV['HOME'] + "/.config/ibus/bus/*").each {|file|
    File.open(file).each_line {|line|
      /IBUS_ADDRESS=/ =~ line
      next if !$'
      return $'.chop
    }
  }
end

ibus_bus = DBus::RemoteBus.new(get_address())
ibus_service = ibus_bus.service(IBUS_SERVICE)

ibus = ibus_service.object(IBUS_PATH_IBUS)
ibus.introspect
ibus.default_iface = ibus[IBUS_INTERFACE_IBUS]
# /org/freedesktop/IBus/InputContext_*
ic_name = ibus.CurrentInputContext[0]

input_context = ibus_service.object(ic_name)
input_context.introspect
input_context.default_iface = IBUS_INTERFACE_INPUTCONTEXT
if input_context.IsEnabled[0]
  input_context.Disable
else
  input_context.Enable
end