gistfile1.rb

require 'rubygems'
gem 'wxruby'
require 'wx'
require 'open-uri'

class Hello < Wx::App
  def on_init
    resource = Wx::XmlResource.get
    resource.init_all_handlers
    resource.load("09-004-hello.wxg")
    @main = resource.load_frame(nil, "main")
    init_browser(@main.children.grep(Wx::HtmlWindow).first)
    init_button(@main.children.grep(Wx::Button).first)
    init_url(@main.children.grep(Wx::TextCtrl).first)
    @main.show
  end

  private
  def init_browser(ctrl)
    @browser = ctrl
  end
  
  def init_url(ctrl)
    @url = ctrl
  end
  
  def init_button(ctrl)
    @button = ctrl
    @button.evt_button(@button.id) { 
      open(@url.get_value) { |f| @browser.set_page f.read }
    }
  end
end

Hello.new.main_loop