Run a thin server from a RubyCocoa app

thin_cocoa.rb

# Start a thin server on the side, which can serve UI to the user in a
# WebView. That way you can make RubyCocoa UI with HTML, thanks to Sinatra.

require 'osx/cocoa'
OSX.require_framework 'WebKit'

class ThinDesktopController < OSX::NSObject
  include OSX
  ib_outlets :webView
  ib_action :quitApp

  def applicationDidFinishLaunching notification
    @thin_path = "#{File.dirname(__FILE__)}/bin/thin"
    @cfg_path = "#{File.dirname(__FILE__)}/config.ru"
    @port = 4567
    @page = "/gists/thefifthcircuit"
  
    IO.popen("#{@thin_path} start -R #{@cfg_path} -p#{@port} -d") do |f|
      puts f.gets
	
      sleep 2
	
      url = "http://localhost:#{@port}#{@page}"
      request = NSURLRequest.requestWithURL(NSURL.URLWithString(url))
      @webView.mainFrame.loadRequest(request)
    end
  end

  def quitApp
    IO.popen("#{@thin_path} stop -R #{@cfg_path} -p#{@port} -d") do
      puts f.gets
    end
  end
end