add :display option, which you pass in to the provider method

README.md

@@ -7,7 +7,7 @@ on the [Vkontakte Developers Page](http://vk.com/developers.php).
 ## Basic Usage
 
     use OmniAuth::Builder do
-      provider :vkontakte, ENV['API_KEY'], ENV['API_SECRET']
+      provider :vkontakte, ENV['API_KEY'], ENV['API_SECRET'], :scope => 'friends,audio', :display => 'popup'
     end
 
 ## Ruby
@@ -19,7 +19,7 @@ Tested with the following Ruby versions:
 
 ## License
 
-Copyright (c) 2011 Anton Maminov.
+Copyright (c) 2011, 2012 Anton Maminov.
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

examples/sinatra.rb

@@ -11,7 +11,7 @@
 use Rack::Session::Cookie
 
 use OmniAuth::Builder do
-  provider :vkontakte,  ENV['VKONTAKTE_KEY'], ENV['VKONTAKTE_SECRET'], :scope => SCOPE
+  provider :vkontakte,  ENV['VKONTAKTE_KEY'], ENV['VKONTAKTE_SECRET'], :scope => SCOPE, :display => 'popup'
 end
 
 get '/' do

lib/omniauth-vkontakte/version.rb

@@ -1,5 +1,5 @@
 module OmniAuth
   module Vkontakte
-    VERSION = "1.0.5"
+    VERSION = "1.0.6"
   end
 end

lib/omniauth/strategies/vkontakte.rb

@@ -11,7 +11,7 @@ module Strategies
     # @example Basic Usage
     #     use OmniAuth::Strategies::Vkontakte, 'API Key', 'Secret Key'
     class Vkontakte < OmniAuth::Strategies::OAuth2
-      DEFAULT_SCOPE = ''
+      DEFAULT_SCOPE = 'friends,audio'
 
       option :name, 'vkontakte'
 
@@ -25,6 +25,8 @@ class Vkontakte < OmniAuth::Strategies::OAuth2
         :param_name => 'access_token',
       }
 
+      option :authorize_options, [:scope, :display]
+
       uid { access_token.params['user_id'] }
 
       # https://github.com/intridea/omniauth/wiki/Auth-Hash-Schema
@@ -52,8 +54,16 @@ def raw_info
         @raw_info ||= access_token.get('/method/getProfiles', :params => { :uid => uid, :fields => fields.join(',') }).parsed["response"].first
       end
 
+      ##
+      # You can pass +display+or +scope+ params to the auth request, if
+      # you need to set them dynamically.
+      #
+      # /auth/vkontakte?display=popup
+      #
       def authorize_params
         super.tap do |params|
+          params.merge!(:display => request.params['display']) if request.params['display']
+          params.merge!(:scope => request.params['scope']) if request.params['scope']
           params[:scope] ||= DEFAULT_SCOPE
         end
       end