Add vendor/impressionist

vendor/impressionist/.gitignore

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+*~
+/coverage
+/pkg
+/rdoc
+/test_app/db/schema.rb
+/test_app/db/migrate/*_create_impressions_table.rb
+/test_app/doc
+/test_app/test
+/test_app/vendor
+Gemfile.lock

vendor/impressionist/.rspec

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+--color

vendor/impressionist/.travis.yml

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+before_install: gem install bundler
+before_script: "cd test_app && bundle install && ./script/rails generate impressionist && bundle exec rake db:migrate && cd .."
+language: ruby
+rvm:
+  - rbx-18mode
+  - rbx-19mode
+  - jruby-18mode
+  - 1.8.7
+  - 1.9.2
+  - 1.9.3
+  - ruby-head

vendor/impressionist/CHANGELOG.rdoc

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+== 0.4.0 (2011-06-03)
+* Fix postgres bug
+* New impression count method that accepts options for filter, start_date and end_date
+* Add referrer to Impression model.  YOU MUST RUN THE UPGRADE MIGRATION IF YOU ARE UPGRADING FROM 0.3.0
+* UPGRADE MIGRATION = impressionist/upgrade_migrations/version_0_4_0.rb
+* NOTE IF YOU ARE UPGRADING FROM 0.2.5 OR BELOW, YOU MUST RUN BOTH UPGRADE MIGRATIONS
+
+== 0.3.0 (2011-03-06)
+* added session_hash to impression model
+* migration template updated to add session_hash
+* new count instance method for impressionable model - unique_impression_count_session
+* NOTE: if you are upgrading from 0.2.5, then run the migration in the 'upgrade_migrations' dir
+
+== 0.2.5 (2011-02-17)
+* New model method - @widget.unique_impression_count_ip  - This gives you unique impression account filtered by IP (and in turn request_hash since they have same IPs)
+* @widget.unique_impression_count now uses request_hash.  This was incorrectly stated in the README, since it was using ip_address.  The README is correct as a result of the method change.
+
+== 0.2.4 (2011-02-17)
+* Fix issue #1 - action_name and controller_name were not being logged for impressionist method inside action

vendor/impressionist/Gemfile

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+source 'https://rubygems.org'
+
+platforms :jruby do
+  gem 'activerecord-jdbcsqlite3-adapter'
+  gem 'jdbc-sqlite3'
+  gem 'jruby-openssl'
+end
+
+platforms :ruby, :mswin, :mingw do
+  # gem 'sqlite3'
+end
+
+gemspec

vendor/impressionist/LICENSE.txt

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+Copyright (c) 2011 cowboycoded
+
+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:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

vendor/impressionist/README.md

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+![Impressionist Logo](https://github.com/charlotte-ruby/impressionist/raw/master/logo.png)
+
+[![Build Status](https://secure.travis-ci.org/charlotte-ruby/impressionist.png?branch=master)](http://travis-ci.org/charlotte-ruby/impressionist)
+
+impressionist
+=============
+
+A lightweight plugin that logs impressions per action or manually per model
+
+--------------------------------------------------------------------------------
+
+What does this thing do?
+------------------------
+Logs an impression... and I use that term loosely.  It can log page impressions
+(technically action impressions), but it is not limited to that. You can log
+impressions multiple times per request.  And you can also attach it to a model.
+The goal of this project is to provide customizable stats that are immediately
+accessible in your application as opposed to using Google Analytics and pulling
+data using their API.  You can attach custom messages to impressions.  No
+reporting yet.. this thingy just creates the data.
+
+What about bots?
+----------------
+They are ignored.  1200 known bots have been added to the ignore list as of
+February 1, 2011.  Impressionist uses this list:
+http://www.user-agents.org/allagents.xml
+
+Installation
+------------
+Add it to your Gemfile
+
+    gem 'impressionist'
+
+Install with Bundler
+
+    bundle install
+
+Generate the impressions table migration
+
+    rails g impressionist
+
+Run the migration
+
+    rake db:migrate
+
+The following fields are provided in the migration:
+
+    t.string   "impressionable_type"  # model type: Widget
+    t.integer  "impressionable_id"    # model instance ID: @widget.id
+    t.integer  "user_id"              # automatically logs @current_user.id
+    t.string   "controller_name"      # logs the controller name
+    t.string   "action_name"          # logs the action_name
+    t.string   "view_name"            # TODO: log individual views (as well as partials and nested partials)
+    t.string   "request_hash"         # unique ID per request, in case you want to log multiple impressions and group them
+    t.string   "session_hash"         # logs the rails session
+    t.string   "ip_address"           # request.remote_ip
+    t.string   "referrer"             # request.referer
+    t.string   "message"              # custom message you can add
+    t.datetime "created_at"           # I am not sure what this is.... Any clue?
+    t.datetime "updated_at"           # never seen this one before either....  Your guess is as good as mine??
+
+Usage
+-----
+
+1. Log all actions in a controller
+
+        WidgetsController < ApplicationController
+          impressionist
+        end
+
+2. Specify actions you want logged in a controller
+
+        WidgetsController < ApplicationController
+          impressionist :actions=>[:show,:index]
+        end
+
+3. Make your models impressionable.  This allows you to attach impressions to
+   an AR model instance.  Impressionist will automatically log the Model name
+   (based on action_name) and the id (based on params[:id]), but in order to
+   get the count of impressions (example: @widget.impression_count), you will
+   need to make your model impressionalble
+
+        class Widget < ActiveRecord::Base
+          is_impressionable
+        end
+
+4. Log an impression per model instance in your controller.  Note that it is
+   not necessary to specify "impressionist" (usage #1) in the top of you
+   controller if you are using this method.  If you add "impressionist" to the
+   top of your controller and also use this method in your action, it will
+   result in 2 impressions being logged (but associated with one request_hash)
+
+        def show
+          @widget = Widget.find
+          impressionist(@widget,message:"wtf is a widget?") #message is optional
+        end
+
+5. Get unique impression count from a model.  This groups impressions by
+   request_hash, so if you logged multiple impressions per request, it will
+   only count them one time.  This unique impression count will not filter out
+   unique users, only unique requests
+
+        @widget.impressionist_count
+        @widget.impressionist_count(:start_date=>"2011-01-01",:end_date=>"2011-01-05")
+        @widget.impressionist_count(:start_date=>"2011-01-01")  #specify start date only, end date = now
+
+6. Get the unique impression count from a model filtered by IP address.  This
+   in turn will give you impressions with unique request_hash, since rows with
+   the same request_hash will have the same IP address.
+
+        @widget.impressionist_count(:filter=>:ip_address)
+
+7. Get the unique impression count from a model filtered by session hash.  Same
+   as #6 regarding request hash.  This may be more desirable than filtering by
+   IP address depending on your situation, since filtering by IP may ignore
+   visitors that use the same IP.  The downside to this filtering is that a
+   user could clear session data in their browser and skew the results.
+
+        @widget.impressionist_count(:filter=>:session_hash)
+
+8. Get total impression count.  This may return more than 1 impression per http
+   request, depending on how you are logging impressions
+
+        @widget.impressionist_count(:filter=>:all)
+
+Logging impressions for authenticated users happens automatically.  If you have
+a current_user helper or use @current_user in your before_filter to set your
+authenticated user, current_user.id will be written to the user_id field in the
+impressions table.
+
+Adding a counter cache
+----------------------
+Impressionist makes it easy to add a `counter_cache` column to your model. The
+most basic configuration looks like:
+
+    is_impressionable :counter_cache => true
+
+This will automatically increment the `impressions_count` column in the
+included model. Note: You'll need to add that column to your model. If you'd
+like specific a different column name, you can:
+
+    is_impressionable :counter_cache => { :column_name => :my_column }
+
+If you'd like to include only unique impressions in your count:
+
+    is_impressionable :counter_cache => { :column_name => :my_column, :unique => true }
+
+What if I only want to record unique impressions?
+-------------------------------------------------
+Maybe you only care about unique impressions and would like to avoid
+unnecessary database records. You can specify conditions for recording
+impressions in your controller:
+
+    # only record impression if the request has a unique combination of type, id, and session
+    impressionist :unique => [:impressionable_type, :impressionable_id, :session_hash]
+
+    # only record impression if the request has a unique combination of controller, action, and session
+    impressionist :unique => [:controller_name, :action_name, :session_hash]
+
+    # only record impression if session is unique
+    impressionist :unique => [:session_hash]
+
+Or you can use the `impressionist` method directly:
+
+    impressionist(impressionable, "some message", :unique => [:session_hash])
+
+Development Roadmap
+-------------------
+* Automatic impression logging in views.  For example, log initial view, and
+  any partials called from initial view
+* Customizable black list for user-agents or IP addresses.  Impressions will be
+  ignored.  Web admin as part of the Engine.
+* Reporting engine
+* AB testing integration
+
+Contributing to impressionist
+-----------------------------
+* Check out the latest master to make sure the feature hasn't been implemented
+  or the bug hasn't been fixed yet
+* Check out the issue tracker to make sure someone already hasn't requested it
+  and/or contributed it
+* Fork the project
+* Start a feature/bugfix branch
+* Commit and push until you are happy with your contribution
+* Make sure to add rpsec tests for it. Patches or features without tests will
+  be ignored.  Also, try to write better tests than I do ;-)
+* If adding engine controller or view functionality, use HAML and Inherited
+  Resources.
+* All testing is done inside a small Rails app (test_app).  You will find specs
+  within this app.
+
+Contributors
+------------
+* [johnmcaliley](https://github.com/johnmcaliley)
+* [coryschires](https://github.com/coryschires)
+* [georgmittendorfer](https://github.com/georgmittendorfer)
+
+Copyright (c) 2011 John McAliley. See LICENSE.txt for further details.

vendor/impressionist/Rakefile

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+require 'bundler/setup'
+require 'rspec/core/rake_task'
+
+Bundler::GemHelper.install_tasks
+
+RSpec::Core::RakeTask.new do |task|
+  task.rspec_opts = "-I ./test_app/spec"
+  task.pattern = "./test_app/spec/**/*_spec.rb"
+end
+
+task :test => :spec
+task :default => :spec
+
+namespace :impressionist do
+  require File.dirname(__FILE__) + "/lib/impressionist/bots"
+
+  desc "output the list of bots from http://www.user-agents.org/"
+  task :bots do
+    p Impressionist::Bots.consume
+  end
+end

vendor/impressionist/app/controllers/impressionist_controller.rb

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+require 'digest/sha2'
+
+module ImpressionistController
+  module ClassMethods
+    def impressionist(opts={})
+      before_filter { |c| c.impressionist_subapp_filter(opts[:actions], opts[:unique])}
+    end
+  end
+
+  module InstanceMethods
+    def self.included(base)
+      base.before_filter :impressionist_app_filter
+    end
+
+    def impressionist(obj,message=nil,opts={})
+      unless bypass
+        if obj.respond_to?("impressionable?")
+          if unique_instance?(obj, opts[:unique])
+            obj.impressions.create(associative_create_statement({:message => message}))
+          end
+        else
+          # we could create an impression anyway. for classes, too. why not?
+          raise "#{obj.class.to_s} is not impressionable!"
+        end
+      end
+    end
+
+    def impressionist_app_filter
+      @impressionist_hash = Digest::SHA2.hexdigest(Time.now.to_f.to_s+rand(10000).to_s)
+    end
+
+    def impressionist_subapp_filter(actions=nil,unique_opts=nil)
+      unless bypass
+        actions.collect!{|a|a.to_s} unless actions.blank?
+        if (actions.blank? || actions.include?(action_name)) && unique?(unique_opts)
+          Impression.create(direct_create_statement)
+        end
+      end
+    end
+
+    private
+
+    def bypass
+      Impressionist::Bots.bot?(request.user_agent)
+    end
+
+    def unique_instance?(impressionable, unique_opts)
+      return unique_opts.blank? || !impressionable.impressions.where(unique_query(unique_opts)).exists?
+    end
+
+    def unique?(unique_opts)
+      return unique_opts.blank? || !Impression.where(unique_query(unique_opts)).exists?
+    end
+
+    # creates the query to check for uniqueness
+    def unique_query(unique_opts)
+      full_statement = direct_create_statement
+      # reduce the full statement to the params we need for the specified unique options
+      unique_opts.reduce({}) do |query, param|
+        query[param] = full_statement[param]
+        query
+      end
+    end
+
+    # creates a statment hash that contains default values for creating an impression via an AR relation.
+    def associative_create_statement(query_params={})
+      query_params.reverse_merge!(
+        :controller_name => controller_name,
+        :action_name => action_name,
+        :user_id => user_id,
+        :request_hash => @impressionist_hash,
+        :session_hash => session_hash,
+        :ip_address => request.remote_ip,
+        :referrer => request.referer
+        )
+    end
+
+    # creates a statment hash that contains default values for creating an impression.
+    def direct_create_statement(query_params={})
+      query_params.reverse_merge!(
+        :impressionable_type => controller_name.singularize.camelize,
+        :impressionable_id=> params[:id]
+        )
+      associative_create_statement(query_params)
+    end
+
+    def session_hash
+      # # careful: request.session_options[:id] encoding in rspec test was ASCII-8BIT
+      # # that broke the database query for uniqueness. not sure if this is a testing only issue.
+      # str = request.session_options[:id]
+      # logger.debug "Encoding: #{str.encoding.inspect}"
+      # # request.session_options[:id].encode("ISO-8859-1")
+      request.session_options[:id]
+    end
+
+    #use both @current_user and current_user helper
+    def user_id
+      user_id = @current_user ? @current_user.id : nil rescue nil
+      user_id = current_user ? current_user.id : nil rescue nil if user_id.blank?
+      user_id
+    end
+  end
+end

vendor/impressionist/app/models/impression.rb

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+class Impression
+  belongs_to :impressionable, :polymorphic=>true
+end

vendor/impressionist/app/models/impressionist/impressionable.rb

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+module Impressionist
+  module Impressionable
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      attr_accessor :impressionist_cache_options
+      @impressionist_cache_options = nil
+
+      def impressionist_counter_cache_options
+        if @impressionist_cache_options
+          options = { :column_name => :impressions_count, :unique => false }
+          options.merge!(@impressionist_cache_options) if @impressionist_cache_options.is_a?(Hash)
+          options
+        end
+      end
+
+      def impressionist_counter_caching?
+        impressionist_counter_cache_options.present?
+      end
+
+      def counter_caching?
+        ::ActiveSupport::Deprecation.warn("#counter_caching? is deprecated; please use #impressionist_counter_caching? instead")
+        impressionist_counter_caching?
+      end
+    end
+
+    def impressionable?
+      true
+    end
+
+    def impressionist_count(options={})
+      # options.reverse_merge!(:filter=>:request_hash, :start_date=>nil, :end_date=>Time.now)
+      # imps = options[:start_date].blank? ? impressions : impressions.where("created_at>=? and created_at<=?",options[:start_date],options[:end_date])
+      # options[:filter] == :all ? imps.count : imps.count(options[:filter], :distinct => true)
+      options.reverse_merge!(:filter => :request_hash, :start_date => nil, :end_date => Time.now)
+      imps = options[:start_date].blank? ? impressions : impressions.where(:created_at.gte => options[:start_date], :created_at.lte => options[:end_date])
+      options[:filter] == :all ? imps.count : imps.distinct(options[:filter]).count
+    end
+
+    def update_impressionist_counter_cache
+      cache_options = self.class.impressionist_counter_cache_options
+      column_name = cache_options[:column_name].to_sym
+      count = cache_options[:unique] ? impressionist_count(:filter => :ip_address) : impressionist_count
+      update_attribute(column_name, count)
+    end
+
+    # OLD METHODS - DEPRECATE IN V0.5
+    def impression_count(start_date=nil,end_date=Time.now)
+      impressionist_count({:start_date=>start_date, :end_date=>end_date, :filter=>:all})
+    end
+
+    def unique_impression_count(start_date=nil,end_date=Time.now)
+      impressionist_count({:start_date=>start_date, :end_date=>end_date, :filter=> :request_hash})
+    end
+
+    def unique_impression_count_ip(start_date=nil,end_date=Time.now)
+      impressionist_count({:start_date=>start_date, :end_date=>end_date, :filter=> :ip_address})
+    end
+
+    def unique_impression_count_session(start_date=nil,end_date=Time.now)
+      impressionist_count({:start_date=>start_date, :end_date=>end_date, :filter=> :session_hash})
+    end
+  end
+end

vendor/impressionist/impressionist.gemspec

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+# encoding: utf-8
+require File.expand_path('../lib/impressionist/version', __FILE__)
+
+Gem::Specification.new do |s|
+  s.add_dependency 'httpclient', '~> 2.2'
+  s.add_dependency 'nokogiri', '~> 1.5'
+  s.add_development_dependency 'capybara'
+  s.add_development_dependency 'rake', '>= 0.9'
+  s.add_development_dependency 'rails', '~>3.1'
+  s.add_development_dependency 'rdoc', '>= 2.4.2'
+  s.add_development_dependency 'rspec-rails'
+  s.add_development_dependency 'simplecov'
+  s.add_development_dependency 'sqlite3'
+  s.add_development_dependency 'systemu'
+  s.authors = ["johnmcaliley"]
+  s.description = "Log impressions from controller actions or from a model"
+  s.email = "john.mcaliley@gmail.com"
+  s.files = `git ls-files`.split("\n")
+  s.homepage = "https://github.com/charlotte-ruby/impressionist"
+  s.licenses = ["MIT"]
+  s.name = "impressionist"
+  s.require_paths = ["lib"]
+  s.required_rubygems_version = Gem::Requirement.new('>= 1.3.6') if s.respond_to? :required_rubygems_version=
+  s.summary = "Easy way to log impressions"
+  s.test_files = `git ls-files -- test_app/*`.split("\n")
+  s.version = Impressionist::VERSION
+end

vendor/impressionist/lib/generators/active_record/impressionist_generator.rb

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+module ActiveRecord
+  module Generators
+    class ImpressionistGenerator < Rails::Generators::Base
+      include Rails::Generators::Migration
+      source_root File.join(File.dirname(__FILE__), 'templates')
+
+      def self.next_migration_number(dirname)
+        sleep 1
+        if ActiveRecord::Base.timestamped_migrations
+          Time.now.utc.strftime("%Y%m%d%H%M%S")
+        else
+          "%.3d" % (current_migration_number(dirname) + 1)
+        end
+      end
+
+      def create_migration_file
+        migration_template 'create_impressions_table.rb', 'db/migrate/create_impressions_table.rb'
+      end
+    end
+  end
+end

vendor/impressionist/lib/generators/active_record/templates/create_impressions_table.rb

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+class CreateImpressionsTable < ActiveRecord::Migration
+  def self.up
+    create_table :impressions, :force => true do |t|
+      t.string :impressionable_type
+      t.integer :impressionable_id
+      t.integer :user_id
+      t.string :controller_name
+      t.string :action_name
+      t.string :view_name
+      t.string :request_hash
+      t.string :ip_address
+      t.string :session_hash
+      t.text :message
+      t.text :referrer
+      t.timestamps
+    end
+    add_index :impressions, [:impressionable_type, :message, :impressionable_id], :name => "impressionable_type_message_index", :unique => false
+    add_index :impressions, [:impressionable_type, :impressionable_id, :request_hash], :name => "poly_request_index", :unique => false
+    add_index :impressions, [:impressionable_type, :impressionable_id, :ip_address], :name => "poly_ip_index", :unique => false
+    add_index :impressions, [:impressionable_type, :impressionable_id, :session_hash], :name => "poly_session_index", :unique => false
+    add_index :impressions, [:controller_name,:action_name,:request_hash], :name => "controlleraction_request_index", :unique => false
+    add_index :impressions, [:controller_name,:action_name,:ip_address], :name => "controlleraction_ip_index", :unique => false
+    add_index :impressions, [:controller_name,:action_name,:session_hash], :name => "controlleraction_session_index", :unique => false
+    add_index :impressions, :user_id
+  end
+
+  def self.down
+    drop_table :impressions
+  end
+end

vendor/impressionist/lib/generators/impressionist_generator.rb

@@ -0,0 +1,12 @@
+module Impressionist
+  module Generators
+    class ImpressionistGenerator < Rails::Generators::Base
+      hook_for :orm
+      source_root File.expand_path('../templates', __FILE__)
+
+      def copy_config_file
+        template 'impression.rb', 'config/initializers/impression.rb'
+      end
+    end
+  end
+end

vendor/impressionist/lib/generators/mongo_mapper/impressionist_generator.rb

@@ -0,0 +1,8 @@
+module MongoMapper
+  module Generators
+    class ImpressionistGenerator < Rails::Generators::Base
+      # Empty for now, need it for generating the config file without
+      # triggering other ORM's generators.
+    end
+  end
+end

vendor/impressionist/lib/generators/mongoid/impressionist_generator.rb

@@ -0,0 +1,8 @@
+module Mongoid
+  module Generators
+    class ImpressionistGenerator < Rails::Generators::Base
+      # Empty for now, need it for generating the config file without
+      # triggering other ORM's generators.
+    end
+  end
+end

vendor/impressionist/lib/generators/templates/impression.rb

@@ -0,0 +1,5 @@
+# Use this hook to configure impressionist parameters
+Impressionist.setup do |config|
+  # Define ORM. Could be :active_record (default) and :mongo_mapper
+  # config.orm = :active_record
+end

vendor/impressionist/lib/impressionist.rb

@@ -0,0 +1,12 @@
+require "impressionist/engine.rb"
+
+module Impressionist
+  # Define ORM
+  mattr_accessor :orm
+  @@orm = :active_record
+
+  # Load configuration from initializer
+  def self.setup
+    yield self
+  end
+end

vendor/impressionist/lib/impressionist/bots.rb

@@ -0,0 +1,18 @@
+require 'httpclient'
+require 'nokogiri'
+
+module Impressionist
+  module Bots
+    LIST_URL = "http://www.user-agents.org/allagents.xml"
+    def self.consume
+      response = HTTPClient.new.get_content(LIST_URL)
+      doc = Nokogiri::XML(response)
+      list = []
+      doc.xpath('//user-agent').each do |agent|
+        type = agent.xpath("Type").text
+        list << agent.xpath("String").text.gsub("&lt;","<") if ["R","S"].include?(type) #gsub hack for badly formatted data
+      end
+      list
+    end
+  end
+end

vendor/impressionist/lib/impressionist/engine.rb

@@ -0,0 +1,30 @@
+require "impressionist"
+require "rails"
+
+module Impressionist
+  class Engine < Rails::Engine
+    initializer 'impressionist.model' do |app|
+      require "#{root}/app/models/impressionist/impressionable.rb"
+      if Impressionist.orm == :active_record
+        require "impressionist/models/active_record/impression.rb"
+        require "impressionist/models/active_record/impressionist/impressionable.rb"
+        ActiveRecord::Base.send(:include, Impressionist::Impressionable)
+      elsif Impressionist.orm == :mongo_mapper
+        require "impressionist/models/mongo_mapper/impression.rb"
+        require "impressionist/models/mongo_mapper/impressionist/impressionable.rb"
+        MongoMapper::Document.plugin Impressionist::Impressionable
+      elsif Impressionist.orm == :mongoid
+        require "impressionist/models/mongoid/impression.rb"
+        require "impressionist/models/mongoid/impressionist/impressionable.rb"
+        # Mongoid::Document Impressionist::Impressionable
+      end
+    end
+
+    initializer 'impressionist.controller' do
+      ActiveSupport.on_load(:action_controller) do
+        include ImpressionistController::InstanceMethods
+        extend ImpressionistController::ClassMethods
+      end
+    end
+  end
+end

vendor/impressionist/lib/impressionist/models/active_record/impression.rb

@@ -0,0 +1,18 @@
+class Impression < ActiveRecord::Base
+  attr_accessible :impressionable_type, :impressionable_id, :user_id,
+  :controller_name, :action_name, :view_name, :request_hash, :ip_address,
+  :session_hash, :message, :referrer
+
+  after_save :update_impressions_counter_cache
+
+  private
+
+  def update_impressions_counter_cache
+    impressionable_class = self.impressionable_type.constantize
+
+    if impressionable_class.impressionist_counter_cache_options
+      resouce = impressionable_class.find(self.impressionable_id)
+      resouce.try(:update_impressionist_counter_cache)
+    end
+  end
+end

vendor/impressionist/lib/impressionist/models/active_record/impressionist/impressionable.rb

@@ -0,0 +1,12 @@
+module Impressionist
+  module Impressionable
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def is_impressionable(options={})
+        has_many :impressions, :as => :impressionable, :dependent => :destroy
+        @impressionist_cache_options = options[:counter_cache]
+      end
+    end
+  end
+end

vendor/impressionist/lib/impressionist/models/mongo_mapper/impression.rb

@@ -0,0 +1,16 @@
+class Impression
+  include MongoMapper::Document
+
+  key :impressionable_type, String
+  key :impressionable_id, String
+  key :user_id, String
+  key :controller_name, String
+  key :action_name, String
+  key :view_name, String
+  key :request_hash, String
+  key :ip_address, String
+  key :session_hash, String
+  key :message, String
+  key :referrer, String
+  timestamps!
+end

vendor/impressionist/lib/impressionist/models/mongo_mapper/impressionist/impressionable.rb

@@ -0,0 +1,12 @@
+module Impressionist
+  module Impressionable
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def is_impressionable(options={})
+        many :impressions, :as => :impressionable, :dependent => :destroy
+        @cache_options = options[:counter_cache]
+      end
+    end
+  end
+end

vendor/impressionist/lib/impressionist/models/mongoid/impression.rb

@@ -0,0 +1,37 @@
+class Impression
+  include Mongoid::Document
+  include Mongoid::Timestamps
+
+  field :impressionable_type
+  field :impressionable_id
+  field :user_id
+  field :controller_name
+  field :action_name
+  field :view_name
+  field :request_hash
+  field :ip_address
+  field :session_hash
+  field :message
+  field :referrer
+
+  belongs_to :impressionable, :polymorphic => true
+
+  after_save :update_impressions_counter_cache
+
+  def self.impressionist_count(options={})
+    options.reverse_merge!(:filter => :request_hash, :start_date => nil, :end_date => Time.now)
+    imps = options[:start_date].blank? ? impressions : impressions.where(:created_at.gte => options[:start_date], :created_at.lte => options[:end_date])
+    options[:filter] == :all ? imps.count : imps.distinct(options[:filter]).count
+  end
+
+  private
+
+  def update_impressions_counter_cache
+    impressionable_class = self.impressionable_type.constantize
+
+    if impressionable_class.impressionist_counter_cache_options
+      resouce = impressionable_class.find(self.impressionable_id)
+      resouce.try(:update_impressionist_counter_cache)
+    end
+  end
+end

vendor/impressionist/lib/impressionist/models/mongoid/impressionist/impressionable.rb

@@ -0,0 +1,12 @@
+module Impressionist
+  module Impressionable
+    extend ActiveSupport::Concern
+
+    module ClassMethods
+      def is_impressionable(options={})
+        has_many :impressions, :as => :impressionable, :dependent => :destroy
+        @impressionist_cache_options = options[:counter_cache]
+      end
+    end
+  end
+end

vendor/impressionist/lib/impressionist/version.rb

@@ -0,0 +1,3 @@
+module Impressionist
+  VERSION = "1.1.1"
+end

vendor/impressionist/test_app/.gitignore

@@ -0,0 +1,17 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+#
+# If you find yourself ignoring temporary files generated by your text editor
+# or operating system, you probably want to add a global ignore instead:
+#   git config --global core.excludesfile ~/.gitignore_global
+
+# Ignore bundler config
+/.bundle
+/Gemfile.lock
+
+# Ignore the default SQLite database.
+/db/*.sqlite3
+
+# Ignore all logfiles and tempfiles.
+/coverage
+/log/*.log
+/tmp

vendor/impressionist/test_app/.rspec

@@ -0,0 +1 @@
+--color

vendor/impressionist/test_app/Gemfile

@@ -0,0 +1,59 @@
+source 'https://rubygems.org'
+
+gem 'rails', '3.2.2'
+
+gem 'impressionist', :path => '../'
+
+platforms :jruby do
+  gem 'activerecord-jdbcsqlite3-adapter'
+  gem 'jdbc-sqlite3'
+  gem 'jruby-openssl'
+end
+
+platforms :ruby, :mswin, :mingw do
+  gem 'pg'
+  gem 'sqlite3'
+end
+
+gem 'json'
+
+# Gems used only for assets and not required
+# in production environments by default.
+group :assets do
+  gem 'sass-rails',   '~> 3.2.3'
+  gem 'coffee-rails', '~> 3.2.1'
+
+  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
+  # gem 'therubyracer'
+
+  gem 'uglifier', '>= 1.0.3'
+end
+
+group :development, :test do
+  gem 'autotest-notification'
+  gem 'rspec-rails'
+  gem 'spork'
+end
+
+group :test do
+  gem 'capybara'
+  gem 'simplecov'
+  gem 'systemu'
+end
+
+gem 'jquery-rails'
+
+# To use ActiveModel has_secure_password
+# gem 'bcrypt-ruby', '~> 3.0.0'
+
+# To use Jbuilder templates for JSON
+# gem 'jbuilder'
+
+# Use unicorn as the app server
+# gem 'unicorn'
+
+# Deploy with Capistrano
+# gem 'capistrano'
+
+# To use debugger
+# gem 'ruby-debug'

vendor/impressionist/test_app/README

@@ -0,0 +1,256 @@
+== Welcome to Rails
+
+Rails is a web-application framework that includes everything needed to create
+database-backed web applications according to the Model-View-Control pattern.
+
+This pattern splits the view (also called the presentation) into "dumb"
+templates that are primarily responsible for inserting pre-built data in between
+HTML tags. The model contains the "smart" domain objects (such as Account,
+Product, Person, Post) that holds all the business logic and knows how to
+persist themselves to a database. The controller handles the incoming requests
+(such as Save New Account, Update Product, Show Post) by manipulating the model
+and directing data to the view.
+
+In Rails, the model is handled by what's called an object-relational mapping
+layer entitled Active Record. This layer allows you to present the data from
+database rows as objects and embellish these data objects with business logic
+methods. You can read more about Active Record in
+link:files/vendor/rails/activerecord/README.html.
+
+The controller and view are handled by the Action Pack, which handles both
+layers by its two parts: Action View and Action Controller. These two layers
+are bundled in a single package due to their heavy interdependence. This is
+unlike the relationship between the Active Record and Action Pack that is much
+more separate. Each of these packages can be used independently outside of
+Rails. You can read more about Action Pack in
+link:files/vendor/rails/actionpack/README.html.
+
+
+== Getting Started
+
+1. At the command prompt, create a new Rails application:
+       <tt>rails new myapp</tt> (where <tt>myapp</tt> is the application name)
+
+2. Change directory to <tt>myapp</tt> and start the web server:
+       <tt>cd myapp; rails server</tt> (run with --help for options)
+
+3. Go to http://localhost:3000/ and you'll see:
+       "Welcome aboard: You're riding Ruby on Rails!"
+
+4. Follow the guidelines to start developing your application. You can find
+the following resources handy:
+
+* The Getting Started Guide: http://guides.rubyonrails.org/getting_started.html
+* Ruby on Rails Tutorial Book: http://www.railstutorial.org/
+
+
+== Debugging Rails
+
+Sometimes your application goes wrong. Fortunately there are a lot of tools that
+will help you debug it and get it back on the rails.
+
+First area to check is the application log files. Have "tail -f" commands
+running on the server.log and development.log. Rails will automatically display
+debugging and runtime information to these files. Debugging info will also be
+shown in the browser on requests from 127.0.0.1.
+
+You can also log your own messages directly into the log file from your code
+using the Ruby logger class from inside your controllers. Example:
+
+  class WeblogController < ActionController::Base
+    def destroy
+      @weblog = Weblog.find(params[:id])
+      @weblog.destroy
+      logger.info("#{Time.now} Destroyed Weblog ID ##{@weblog.id}!")
+    end
+  end
+
+The result will be a message in your log file along the lines of:
+
+  Mon Oct 08 14:22:29 +1000 2007 Destroyed Weblog ID #1!
+
+More information on how to use the logger is at http://www.ruby-doc.org/core/
+
+Also, Ruby documentation can be found at http://www.ruby-lang.org/. There are
+several books available online as well:
+
+* Programming Ruby: http://www.ruby-doc.org/docs/ProgrammingRuby/ (Pickaxe)
+* Learn to Program: http://pine.fm/LearnToProgram/ (a beginners guide)
+
+These two books will bring you up to speed on the Ruby language and also on
+programming in general.
+
+
+== Debugger
+
+Debugger support is available through the debugger command when you start your
+Mongrel or WEBrick server with --debugger. This means that you can break out of
+execution at any point in the code, investigate and change the model, and then,
+resume execution! You need to install ruby-debug to run the server in debugging
+mode. With gems, use <tt>sudo gem install ruby-debug</tt>. Example:
+
+  class WeblogController < ActionController::Base
+    def index
+      @posts = Post.find(:all)
+      debugger
+    end
+  end
+
+So the controller will accept the action, run the first line, then present you
+with a IRB prompt in the server window. Here you can do things like:
+
+  >> @posts.inspect
+  => "[#<Post:0x14a6be8
+          @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>,
+       #<Post:0x14a6620
+          @attributes={"title"=>"Rails", "body"=>"Only ten..", "id"=>"2"}>]"
+  >> @posts.first.title = "hello from a debugger"
+  => "hello from a debugger"
+
+...and even better, you can examine how your runtime objects actually work:
+
+  >> f = @posts.first
+  => #<Post:0x13630c4 @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>
+  >> f.
+  Display all 152 possibilities? (y or n)
+
+Finally, when you're ready to resume execution, you can enter "cont".
+
+
+== Console
+
+The console is a Ruby shell, which allows you to interact with your
+application's domain model. Here you'll have all parts of the application
+configured, just like it is when the application is running. You can inspect
+domain models, change values, and save to the database. Starting the script
+without arguments will launch it in the development environment.
+
+To start the console, run <tt>rails console</tt> from the application
+directory.
+
+Options:
+
+* Passing the <tt>-s, --sandbox</tt> argument will rollback any modifications
+  made to the database.
+* Passing an environment name as an argument will load the corresponding
+  environment. Example: <tt>rails console production</tt>.
+
+To reload your controllers and models after launching the console run
+<tt>reload!</tt>
+
+More information about irb can be found at:
+link:http://www.rubycentral.com/pickaxe/irb.html
+
+
+== dbconsole
+
+You can go to the command line of your database directly through <tt>rails
+dbconsole</tt>. You would be connected to the database with the credentials
+defined in database.yml. Starting the script without arguments will connect you
+to the development database. Passing an argument will connect you to a different
+database, like <tt>rails dbconsole production</tt>. Currently works for MySQL,
+PostgreSQL and SQLite 3.
+
+== Description of Contents
+
+The default directory structure of a generated Ruby on Rails application:
+
+  |-- app
+  |   |-- controllers
+  |   |-- helpers
+  |   |-- mailers
+  |   |-- models
+  |   `-- views
+  |       `-- layouts
+  |-- config
+  |   |-- environments
+  |   |-- initializers
+  |   `-- locales
+  |-- db
+  |-- doc
+  |-- lib
+  |   `-- tasks
+  |-- log
+  |-- public
+  |   |-- images
+  |   |-- javascripts
+  |   `-- stylesheets
+  |-- script
+  |-- test
+  |   |-- fixtures
+  |   |-- functional
+  |   |-- integration
+  |   |-- performance
+  |   `-- unit
+  |-- tmp
+  |   |-- cache
+  |   |-- pids
+  |   |-- sessions
+  |   `-- sockets
+  `-- vendor
+      `-- plugins
+
+app
+  Holds all the code that's specific to this particular application.
+
+app/controllers
+  Holds controllers that should be named like weblogs_controller.rb for
+  automated URL mapping. All controllers should descend from
+  ApplicationController which itself descends from ActionController::Base.
+
+app/models
+  Holds models that should be named like post.rb. Models descend from
+  ActiveRecord::Base by default.
+
+app/views
+  Holds the template files for the view that should be named like
+  weblogs/index.html.erb for the WeblogsController#index action. All views use
+  eRuby syntax by default.
+
+app/views/layouts
+  Holds the template files for layouts to be used with views. This models the
+  common header/footer method of wrapping views. In your views, define a layout
+  using the <tt>layout :default</tt> and create a file named default.html.erb.
+  Inside default.html.erb, call <% yield %> to render the view using this
+  layout.
+
+app/helpers
+  Holds view helpers that should be named like weblogs_helper.rb. These are
+  generated for you automatically when using generators for controllers.
+  Helpers can be used to wrap functionality for your views into methods.
+
+config
+  Configuration files for the Rails environment, the routing map, the database,
+  and other dependencies.
+
+db
+  Contains the database schema in schema.rb. db/migrate contains all the
+  sequence of Migrations for your schema.
+
+doc
+  This directory is where your application documentation will be stored when
+  generated using <tt>rake doc:app</tt>
+
+lib
+  Application specific libraries. Basically, any kind of custom code that
+  doesn't belong under controllers, models, or helpers. This directory is in
+  the load path.
+
+public
+  The directory available for the web server. Contains subdirectories for
+  images, stylesheets, and javascripts. Also contains the dispatchers and the
+  default HTML files. This should be set as the DOCUMENT_ROOT of your web
+  server.
+
+script
+  Helper scripts for automation and generation.
+
+test
+  Unit and functional tests along with fixtures. When using the rails generate
+  command, template test files will be generated for you and placed in this
+  directory.
+
+vendor
+  External libraries that the application depends on. Also includes the plugins
+  subdirectory. If the app has frozen rails, those gems also go here, under
+  vendor/rails/. This directory is in the load path.

vendor/impressionist/test_app/README.rdoc

@@ -0,0 +1,261 @@
+== Welcome to Rails
+
+Rails is a web-application framework that includes everything needed to create
+database-backed web applications according to the Model-View-Control pattern.
+
+This pattern splits the view (also called the presentation) into "dumb"
+templates that are primarily responsible for inserting pre-built data in between
+HTML tags. The model contains the "smart" domain objects (such as Account,
+Product, Person, Post) that holds all the business logic and knows how to
+persist themselves to a database. The controller handles the incoming requests
+(such as Save New Account, Update Product, Show Post) by manipulating the model
+and directing data to the view.
+
+In Rails, the model is handled by what's called an object-relational mapping
+layer entitled Active Record. This layer allows you to present the data from
+database rows as objects and embellish these data objects with business logic
+methods. You can read more about Active Record in
+link:files/vendor/rails/activerecord/README.html.
+
+The controller and view are handled by the Action Pack, which handles both
+layers by its two parts: Action View and Action Controller. These two layers
+are bundled in a single package due to their heavy interdependence. This is
+unlike the relationship between the Active Record and Action Pack that is much
+more separate. Each of these packages can be used independently outside of
+Rails. You can read more about Action Pack in
+link:files/vendor/rails/actionpack/README.html.
+
+
+== Getting Started
+
+1. At the command prompt, create a new Rails application:
+       <tt>rails new myapp</tt> (where <tt>myapp</tt> is the application name)
+
+2. Change directory to <tt>myapp</tt> and start the web server:
+       <tt>cd myapp; rails server</tt> (run with --help for options)
+
+3. Go to http://localhost:3000/ and you'll see:
+       "Welcome aboard: You're riding Ruby on Rails!"
+
+4. Follow the guidelines to start developing your application. You can find
+the following resources handy:
+
+* The Getting Started Guide: http://guides.rubyonrails.org/getting_started.html
+* Ruby on Rails Tutorial Book: http://www.railstutorial.org/
+
+
+== Debugging Rails
+
+Sometimes your application goes wrong. Fortunately there are a lot of tools that
+will help you debug it and get it back on the rails.
+
+First area to check is the application log files. Have "tail -f" commands
+running on the server.log and development.log. Rails will automatically display
+debugging and runtime information to these files. Debugging info will also be
+shown in the browser on requests from 127.0.0.1.
+
+You can also log your own messages directly into the log file from your code
+using the Ruby logger class from inside your controllers. Example:
+
+  class WeblogController < ActionController::Base
+    def destroy
+      @weblog = Weblog.find(params[:id])
+      @weblog.destroy
+      logger.info("#{Time.now} Destroyed Weblog ID ##{@weblog.id}!")
+    end
+  end
+
+The result will be a message in your log file along the lines of:
+
+  Mon Oct 08 14:22:29 +1000 2007 Destroyed Weblog ID #1!
+
+More information on how to use the logger is at http://www.ruby-doc.org/core/
+
+Also, Ruby documentation can be found at http://www.ruby-lang.org/. There are
+several books available online as well:
+
+* Programming Ruby: http://www.ruby-doc.org/docs/ProgrammingRuby/ (Pickaxe)
+* Learn to Program: http://pine.fm/LearnToProgram/ (a beginners guide)
+
+These two books will bring you up to speed on the Ruby language and also on
+programming in general.
+
+
+== Debugger
+
+Debugger support is available through the debugger command when you start your
+Mongrel or WEBrick server with --debugger. This means that you can break out of
+execution at any point in the code, investigate and change the model, and then,
+resume execution! You need to install ruby-debug to run the server in debugging
+mode. With gems, use <tt>sudo gem install ruby-debug</tt>. Example:
+
+  class WeblogController < ActionController::Base
+    def index
+      @posts = Post.all
+      debugger
+    end
+  end
+
+So the controller will accept the action, run the first line, then present you
+with a IRB prompt in the server window. Here you can do things like:
+
+  >> @posts.inspect
+  => "[#<Post:0x14a6be8
+          @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>,
+       #<Post:0x14a6620
+          @attributes={"title"=>"Rails", "body"=>"Only ten..", "id"=>"2"}>]"
+  >> @posts.first.title = "hello from a debugger"
+  => "hello from a debugger"
+
+...and even better, you can examine how your runtime objects actually work:
+
+  >> f = @posts.first
+  => #<Post:0x13630c4 @attributes={"title"=>nil, "body"=>nil, "id"=>"1"}>
+  >> f.
+  Display all 152 possibilities? (y or n)
+
+Finally, when you're ready to resume execution, you can enter "cont".
+
+
+== Console
+
+The console is a Ruby shell, which allows you to interact with your
+application's domain model. Here you'll have all parts of the application
+configured, just like it is when the application is running. You can inspect
+domain models, change values, and save to the database. Starting the script
+without arguments will launch it in the development environment.
+
+To start the console, run <tt>rails console</tt> from the application
+directory.
+
+Options:
+
+* Passing the <tt>-s, --sandbox</tt> argument will rollback any modifications
+  made to the database.
+* Passing an environment name as an argument will load the corresponding
+  environment. Example: <tt>rails console production</tt>.
+
+To reload your controllers and models after launching the console run
+<tt>reload!</tt>
+
+More information about irb can be found at:
+link:http://www.rubycentral.org/pickaxe/irb.html
+
+
+== dbconsole
+
+You can go to the command line of your database directly through <tt>rails
+dbconsole</tt>. You would be connected to the database with the credentials
+defined in database.yml. Starting the script without arguments will connect you
+to the development database. Passing an argument will connect you to a different
+database, like <tt>rails dbconsole production</tt>. Currently works for MySQL,
+PostgreSQL and SQLite 3.
+
+== Description of Contents
+
+The default directory structure of a generated Ruby on Rails application:
+
+  |-- app
+  |   |-- assets
+  |       |-- images
+  |       |-- javascripts
+  |       `-- stylesheets
+  |   |-- controllers
+  |   |-- helpers
+  |   |-- mailers
+  |   |-- models
+  |   `-- views
+  |       `-- layouts
+  |-- config
+  |   |-- environments
+  |   |-- initializers
+  |   `-- locales
+  |-- db
+  |-- doc
+  |-- lib
+  |   `-- tasks
+  |-- log
+  |-- public
+  |-- script
+  |-- test
+  |   |-- fixtures
+  |   |-- functional
+  |   |-- integration
+  |   |-- performance
+  |   `-- unit
+  |-- tmp
+  |   |-- cache
+  |   |-- pids
+  |   |-- sessions
+  |   `-- sockets
+  `-- vendor
+      |-- assets
+          `-- stylesheets
+      `-- plugins
+
+app
+  Holds all the code that's specific to this particular application.
+
+app/assets
+  Contains subdirectories for images, stylesheets, and JavaScript files.
+
+app/controllers
+  Holds controllers that should be named like weblogs_controller.rb for
+  automated URL mapping. All controllers should descend from
+  ApplicationController which itself descends from ActionController::Base.
+
+app/models
+  Holds models that should be named like post.rb. Models descend from
+  ActiveRecord::Base by default.
+
+app/views
+  Holds the template files for the view that should be named like
+  weblogs/index.html.erb for the WeblogsController#index action. All views use
+  eRuby syntax by default.
+
+app/views/layouts
+  Holds the template files for layouts to be used with views. This models the
+  common header/footer method of wrapping views. In your views, define a layout
+  using the <tt>layout :default</tt> and create a file named default.html.erb.
+  Inside default.html.erb, call <% yield %> to render the view using this
+  layout.
+
+app/helpers
+  Holds view helpers that should be named like weblogs_helper.rb. These are
+  generated for you automatically when using generators for controllers.
+  Helpers can be used to wrap functionality for your views into methods.
+
+config
+  Configuration files for the Rails environment, the routing map, the database,
+  and other dependencies.
+
+db
+  Contains the database schema in schema.rb. db/migrate contains all the
+  sequence of Migrations for your schema.
+
+doc
+  This directory is where your application documentation will be stored when
+  generated using <tt>rake doc:app</tt>
+
+lib
+  Application specific libraries. Basically, any kind of custom code that
+  doesn't belong under controllers, models, or helpers. This directory is in
+  the load path.
+
+public
+  The directory available for the web server. Also contains the dispatchers and the
+  default HTML files. This should be set as the DOCUMENT_ROOT of your web
+  server.
+
+script
+  Helper scripts for automation and generation.
+
+test
+  Unit and functional tests along with fixtures. When using the rails generate
+  command, template test files will be generated for you and placed in this
+  directory.
+
+vendor
+  External libraries that the application depends on. Also includes the plugins
+  subdirectory. If the app has frozen rails, those gems also go here, under
+  vendor/rails/. This directory is in the load path.

vendor/impressionist/test_app/Rakefile

@@ -0,0 +1,7 @@
+#!/usr/bin/env rake
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+
+TestApp::Application.load_tasks

vendor/impressionist/test_app/app/assets/javascripts/application.js

@@ -0,0 +1,15 @@
+// This is a manifest file that'll be compiled into application.js, which will include all the files
+// listed below.
+//
+// Any JavaScript/Coffee file within this directory, lib/assets/javascripts, vendor/assets/javascripts,
+// or vendor/assets/javascripts of plugins, if any, can be referenced here using a relative path.
+//
+// It's not advisable to add code directly here, but if you do, it'll appear at the bottom of the
+// the compiled file.
+//
+// WARNING: THE FIRST BLANK LINE MARKS THE END OF WHAT'S TO BE PROCESSED, ANY BLANK LINE SHOULD
+// GO AFTER THE REQUIRES BELOW.
+//
+//= require jquery
+//= require jquery_ujs
+//= require_tree .

vendor/impressionist/test_app/app/assets/stylesheets/application.css

@@ -0,0 +1,13 @@
+/*
+ * This is a manifest file that'll be compiled into application.css, which will include all the files
+ * listed below.
+ *
+ * Any CSS and SCSS file within this directory, lib/assets/stylesheets, vendor/assets/stylesheets,
+ * or vendor/assets/stylesheets of plugins, if any, can be referenced here using a relative path.
+ *
+ * You're free to add application-wide styles to this file and they'll appear at the top of the
+ * compiled file, but it's generally better to create a new file per style scope.
+ *
+ *= require_self
+ *= require_tree .
+*/

vendor/impressionist/test_app/app/controllers/application_controller.rb

@@ -0,0 +1,8 @@
+class ApplicationController < ActionController::Base
+  protect_from_forgery
+  before_filter :secondary_before_filter
+
+  def secondary_before_filter
+    @test_secondary_before_filter = "this is a test"
+  end
+end

vendor/impressionist/test_app/app/controllers/articles_controller.rb

@@ -0,0 +1,18 @@
+class ArticlesController < ApplicationController
+  before_filter :test_current_user_var
+
+  def test_current_user_var
+    if session[:user_id]
+      @current_user = User.new
+      @current_user.id = session[:user_id]
+    end
+  end
+
+  def index
+    impressionist(Article.first,"this is a test article impression")
+  end
+
+  def show
+    impressionist(Article.first)
+  end
+end

vendor/impressionist/test_app/app/controllers/dummy_controller.rb

@@ -0,0 +1,6 @@
+# This controller imports the impressionist module to make the modules methods available for testing
+class DummyController < ActionController::Base
+
+  impressionist
+
+end

vendor/impressionist/test_app/app/controllers/posts_controller.rb

@@ -0,0 +1,23 @@
+class PostsController < ApplicationController
+  helper_method :current_user
+  impressionist
+  def index
+
+  end
+
+  def show
+
+  end
+
+  def edit
+
+  end
+
+  def current_user
+    if session[:user_id]
+      user = User.new
+      user.id = session[:user_id]
+      @current_user ||= user
+    end
+  end
+end

vendor/impressionist/test_app/app/controllers/widgets_controller.rb

@@ -0,0 +1,12 @@
+class WidgetsController < ApplicationController
+  impressionist :actions=>[:show,:index], :unique => [:controller_name,:action_name,:impressionable_id]
+
+  def show
+  end
+
+  def index
+  end
+
+  def new
+  end
+end

vendor/impressionist/test_app/app/helpers/application_helper.rb

@@ -0,0 +1,2 @@
+module ApplicationHelper
+end

vendor/impressionist/test_app/app/models/article.rb

@@ -0,0 +1,3 @@
+class Article < ActiveRecord::Base
+  is_impressionable
+end

vendor/impressionist/test_app/app/models/dummy.rb

@@ -0,0 +1,7 @@
+# We don't really care about this model. It's just being used to test the uniqueness controller
+# specs. Nevertheless, we need a model because the counter caching functionality expects it.
+#
+class Dummy < ActiveRecord::Base
+  self.abstract_class = true # doesn't need to be backed by an actual table
+  is_impressionable
+end

vendor/impressionist/test_app/app/models/post.rb

@@ -0,0 +1,3 @@
+class Post < ActiveRecord::Base
+  is_impressionable
+end

vendor/impressionist/test_app/app/models/user.rb

@@ -0,0 +1,3 @@
+class User
+  attr_accessor :id
+end

vendor/impressionist/test_app/app/models/widget.rb

@@ -0,0 +1,3 @@
+class Widget < ActiveRecord::Base
+  is_impressionable :counter_cache => true
+end

vendor/impressionist/test_app/app/views/articles/index.html.erb

@@ -0,0 +1 @@
+<%=@impressionist_hash==nil%>

vendor/impressionist/test_app/app/views/articles/show.html.erb

@@ -0,0 +1 @@
+<%=link_to "Same Page", article_url(Article.first)%>

vendor/impressionist/test_app/app/views/layouts/application.html.erb

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>TestApp</title>
+  <%= stylesheet_link_tag    "application", :media => "all" %>
+  <%= javascript_include_tag "application" %>
+  <%= csrf_meta_tags %>
+</head>
+<body>
+
+<%= yield %>
+
+</body>
+</html>

vendor/impressionist/test_app/config.ru

@@ -0,0 +1,4 @@
+# This file is used by Rack-based servers to start the application.
+
+require ::File.expand_path('../config/environment',  __FILE__)
+run TestApp::Application

vendor/impressionist/test_app/config/application.rb

@@ -0,0 +1,59 @@
+require File.expand_path('../boot', __FILE__)
+
+require 'rails/all'
+
+if defined?(Bundler)
+  # If you precompile assets before deploying to production, use this line
+  Bundler.require(*Rails.groups(:assets => %w(development test)))
+  # If you want your assets lazily compiled in production, use this line
+  # Bundler.require(:default, :assets, Rails.env)
+end
+
+module TestApp
+  class Application < Rails::Application
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+
+    # Custom directories with classes and modules you want to be autoloadable.
+    # config.autoload_paths += %W(#{config.root}/extras)
+
+    # Only load the plugins named here, in the order given (default is alphabetical).
+    # :all can be used as a placeholder for all plugins not explicitly named.
+    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
+
+    # Activate observers that should always be running.
+    # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
+
+    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
+    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
+    # config.time_zone = 'Central Time (US & Canada)'
+
+    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
+    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    # config.i18n.default_locale = :de
+
+    # Configure the default encoding used in templates for Ruby 1.9.
+    config.encoding = "utf-8"
+
+    # Configure sensitive parameters which will be filtered from the log file.
+    config.filter_parameters += [:password]
+
+    # Use SQL instead of Active Record's schema dumper when creating the database.
+    # This is necessary if your schema can't be completely dumped by the schema dumper,
+    # like if you have constraints or database-specific column types
+    # config.active_record.schema_format = :sql
+
+    # Enforce whitelist mode for mass assignment.
+    # This will create an empty whitelist of attributes available for mass-assignment for all models
+    # in your app. As such, your models will need to explicitly whitelist or blacklist accessible
+    # parameters by using an attr_accessible or attr_protected declaration.
+    # config.active_record.whitelist_attributes = true
+
+    # Enable the asset pipeline
+    config.assets.enabled = true
+
+    # Version of your assets, change this if you want to expire all your assets
+    config.assets.version = '1.0'
+  end
+end

vendor/impressionist/test_app/config/boot.rb

@@ -0,0 +1,6 @@
+require 'rubygems'
+
+# Set up gems listed in the Gemfile.
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+
+require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])

vendor/impressionist/test_app/config/cucumber.yml

@@ -0,0 +1,8 @@
+<%
+rerun = File.file?('rerun.txt') ? IO.read('rerun.txt') : ""
+rerun_opts = rerun.to_s.strip.empty? ? "--format #{ENV['CUCUMBER_FORMAT'] || 'progress'} features" : "--format #{ENV['CUCUMBER_FORMAT'] || 'pretty'} #{rerun}"
+std_opts = "--format #{ENV['CUCUMBER_FORMAT'] || 'progress'} --strict --tags ~@wip"
+%>
+default: --drb <%= std_opts %> features
+wip: --drb --tags @wip:3 --wip features
+rerun: --drb <%= rerun_opts %> --format rerun --out rerun.txt --strict --tags ~@wip

vendor/impressionist/test_app/config/database.yml

@@ -0,0 +1,30 @@
+# SQLite version 3.x
+#   gem install sqlite3-ruby (not necessary on OS X Leopard)
+development:
+  adapter: sqlite3
+  database: db/development.sqlite3
+  pool: 5
+  timeout: 5000
+
+test: &test
+  adapter: sqlite3
+  database: db/test.sqlite3
+  pool: 5
+  timeout: 5000
+
+#pg_test:
+#  adapter: postgresql
+#  database: impressionist_test
+#  username: johnmcaliley
+# password:
+#  host: localhost
+#  encoding: UTF8
+
+production:
+  adapter: sqlite3
+  database: db/production.sqlite3
+  pool: 5
+  timeout: 5000
+
+cucumber:
+  <<: *test

vendor/impressionist/test_app/config/environment.rb

@@ -0,0 +1,5 @@
+# Load the rails application
+require File.expand_path('../application', __FILE__)
+
+# Initialize the rails application
+TestApp::Application.initialize!

vendor/impressionist/test_app/config/environments/development.rb

@@ -0,0 +1,37 @@
+TestApp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # In the development environment your application's code is reloaded on
+  # every request. This slows down response time but is perfect for development
+  # since you don't have to restart the web server when you make code changes.
+  config.cache_classes = false
+
+  # Log error messages when you accidentally call methods on nil.
+  config.whiny_nils = true
+
+  # Show full error reports and disable caching
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Don't care if the mailer can't send
+  config.action_mailer.raise_delivery_errors = false
+
+  # Print deprecation notices to the Rails logger
+  config.active_support.deprecation = :log
+
+  # Only use best-standards-support built into browsers
+  config.action_dispatch.best_standards_support = :builtin
+
+  # Raise exception on mass assignment protection for Active Record models
+  config.active_record.mass_assignment_sanitizer = :strict
+
+  # Log the query plan for queries taking more than this (works
+  # with SQLite, MySQL, and PostgreSQL)
+  config.active_record.auto_explain_threshold_in_seconds = 0.5
+
+  # Do not compress assets
+  config.assets.compress = false
+
+  # Expands the lines which load the assets
+  config.assets.debug = true
+end

vendor/impressionist/test_app/config/environments/pg_test.rb

@@ -0,0 +1,35 @@
+TestApp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # The test environment is used exclusively to run your application's
+  # test suite.  You never need to work with it otherwise.  Remember that
+  # your test database is "scratch space" for the test suite and is wiped
+  # and recreated between test runs.  Don't rely on the data there!
+  config.cache_classes = true
+
+  # Log error messages when you accidentally call methods on nil.
+  config.whiny_nils = true
+
+  # Show full error reports and disable caching
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Raise exceptions instead of rendering exception templates
+  config.action_dispatch.show_exceptions = false
+
+  # Disable request forgery protection in test environment
+  config.action_controller.allow_forgery_protection    = false
+
+  # Tell Action Mailer not to deliver emails to the real world.
+  # The :test delivery method accumulates sent emails in the
+  # ActionMailer::Base.deliveries array.
+  config.action_mailer.delivery_method = :test
+
+  # Use SQL instead of Active Record's schema dumper when creating the test database.
+  # This is necessary if your schema can't be completely dumped by the schema dumper,
+  # like if you have constraints or database-specific column types
+  # config.active_record.schema_format = :sql
+
+  # Print deprecation notices to the stderr
+  config.active_support.deprecation = :stderr
+end

vendor/impressionist/test_app/config/environments/production.rb

@@ -0,0 +1,67 @@
+TestApp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # Code is not reloaded between requests
+  config.cache_classes = true
+
+  # Full error reports are disabled and caching is turned on
+  config.consider_all_requests_local       = false
+  config.action_controller.perform_caching = true
+
+  # Disable Rails's static asset server (Apache or nginx will already do this)
+  config.serve_static_assets = false
+
+  # Compress JavaScripts and CSS
+  config.assets.compress = true
+
+  # Don't fallback to assets pipeline if a precompiled asset is missed
+  config.assets.compile = false
+
+  # Generate digests for assets URLs
+  config.assets.digest = true
+
+  # Defaults to Rails.root.join("public/assets")
+  # config.assets.manifest = YOUR_PATH
+
+  # Specifies the header that your server uses for sending files
+  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  # config.force_ssl = true
+
+  # See everything in the log (default is :info)
+  # config.log_level = :debug
+
+  # Prepend all log lines with the following tags
+  # config.log_tags = [ :subdomain, :uuid ]
+
+  # Use a different logger for distributed setups
+  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+
+  # Use a different cache store in production
+  # config.cache_store = :mem_cache_store
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server
+  # config.action_controller.asset_host = "http://assets.example.com"
+
+  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
+  # config.assets.precompile += %w( search.js )
+
+  # Disable delivery errors, bad email addresses will be ignored
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Enable threaded mode
+  # config.threadsafe!
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation can not be found)
+  config.i18n.fallbacks = true
+
+  # Send deprecation notices to registered listeners
+  config.active_support.deprecation = :notify
+
+  # Log the query plan for queries taking more than this (works
+  # with SQLite, MySQL, and PostgreSQL)
+  # config.active_record.auto_explain_threshold_in_seconds = 0.5
+end

vendor/impressionist/test_app/config/environments/test.rb

@@ -0,0 +1,37 @@
+TestApp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # The test environment is used exclusively to run your application's
+  # test suite. You never need to work with it otherwise. Remember that
+  # your test database is "scratch space" for the test suite and is wiped
+  # and recreated between test runs. Don't rely on the data there!
+  config.cache_classes = true
+
+  # Configure static asset server for tests with Cache-Control for performance
+  config.serve_static_assets = true
+  config.static_cache_control = "public, max-age=3600"
+
+  # Log error messages when you accidentally call methods on nil
+  config.whiny_nils = true
+
+  # Show full error reports and disable caching
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Raise exceptions instead of rendering exception templates
+  config.action_dispatch.show_exceptions = false
+
+  # Disable request forgery protection in test environment
+  config.action_controller.allow_forgery_protection    = false
+
+  # Tell Action Mailer not to deliver emails to the real world.
+  # The :test delivery method accumulates sent emails in the
+  # ActionMailer::Base.deliveries array.
+  config.action_mailer.delivery_method = :test
+
+  # Raise exception on mass assignment protection for Active Record models
+  config.active_record.mass_assignment_sanitizer = :strict
+
+  # Print deprecation notices to the stderr
+  config.active_support.deprecation = :stderr
+end

vendor/impressionist/test_app/config/initializers/backtrace_silencers.rb

@@ -0,0 +1,7 @@
+# Be sure to restart your server when you modify this file.
+
+# You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
+# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
+# Rails.backtrace_cleaner.remove_silencers!

vendor/impressionist/test_app/config/initializers/impression.rb

@@ -0,0 +1,5 @@
+# Use this hook to configure impressionist parameters
+Impressionist.setup do |config|
+  # Define ORM. Could be :active_record (default) and :mongo_mapper
+  # config.orm = :active_record
+end

vendor/impressionist/test_app/config/initializers/inflections.rb

@@ -0,0 +1,15 @@
+# Be sure to restart your server when you modify this file.
+
+# Add new inflection rules using the following format
+# (all these examples are active by default):
+# ActiveSupport::Inflector.inflections do |inflect|
+#   inflect.plural /^(ox)$/i, '\1en'
+#   inflect.singular /^(ox)en/i, '\1'
+#   inflect.irregular 'person', 'people'
+#   inflect.uncountable %w( fish sheep )
+# end
+#
+# These inflection rules are supported but not enabled by default:
+# ActiveSupport::Inflector.inflections do |inflect|
+#   inflect.acronym 'RESTful'
+# end

vendor/impressionist/test_app/config/initializers/mime_types.rb

@@ -0,0 +1,5 @@
+# Be sure to restart your server when you modify this file.
+
+# Add new mime types for use in respond_to blocks:
+# Mime::Type.register "text/richtext", :rtf
+# Mime::Type.register_alias "text/html", :iphone

vendor/impressionist/test_app/config/initializers/secret_token.rb

@@ -0,0 +1,7 @@
+# Be sure to restart your server when you modify this file.
+
+# Your secret key for verifying the integrity of signed cookies.
+# If you change this key, all old signed cookies will become invalid!
+# Make sure the secret is at least 30 characters and all random,
+# no regular words or you'll be exposed to dictionary attacks.
+TestApp::Application.config.secret_token = '4a6fd2eb397985331d209be32073259ed7c25aef4fafcabb00e483ee548e592322277eb15459bdb257b65f31146eda92684b3e7a98ea1b2dfad9b0d08ab62e10'

vendor/impressionist/test_app/config/initializers/session_store.rb

@@ -0,0 +1,8 @@
+# Be sure to restart your server when you modify this file.
+
+TestApp::Application.config.session_store :cookie_store, :key => '_test_app_session'
+
+# Use the database for sessions instead of the cookie-based default,
+# which shouldn't be used to store highly confidential information
+# (create the session table with "rails generate session_migration")
+# TestApp::Application.config.session_store :active_record_store

vendor/impressionist/test_app/config/initializers/wrap_parameters.rb

@@ -0,0 +1,14 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains settings for ActionController::ParamsWrapper which
+# is enabled by default.
+
+# Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
+ActiveSupport.on_load(:action_controller) do
+  wrap_parameters :format => [:json]
+end
+
+# Disable root element in JSON by default.
+ActiveSupport.on_load(:active_record) do
+  self.include_root_in_json = false
+end

vendor/impressionist/test_app/config/locales/en.yml

@@ -0,0 +1,5 @@
+# Sample localization file for English. Add more files in this directory for other locales.
+# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
+
+en:
+  hello: "Hello world"

vendor/impressionist/test_app/config/routes.rb

@@ -0,0 +1,3 @@
+TestApp::Application.routes.draw do
+  resources :articles, :posts, :widgets
+end

vendor/impressionist/test_app/db/migrate/20110201153144_create_articles.rb

@@ -0,0 +1,13 @@
+class CreateArticles < ActiveRecord::Migration
+  def self.up
+    create_table :articles do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :articles
+  end
+end

vendor/impressionist/test_app/db/migrate/20110210205028_create_posts.rb

@@ -0,0 +1,13 @@
+class CreatePosts < ActiveRecord::Migration
+  def self.up
+    create_table :posts do |t|
+      t.string :name
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :posts
+  end
+end

vendor/impressionist/test_app/db/migrate/20111127184039_create_widgets.rb

@@ -0,0 +1,15 @@
+class CreateWidgets < ActiveRecord::Migration
+  def self.up
+    create_table :widgets do |t|
+      t.string :name
+      t.integer :impressions_count
+
+      t.timestamps
+    end
+  end
+
+  def self.down
+    drop_table :widgets
+  end
+end
+

vendor/impressionist/test_app/db/seeds.rb

@@ -0,0 +1,7 @@
+# This file should contain all the record creation needed to seed the database with its default values.
+# The data can then be loaded with the rake db:seed (or created alongside the db with db:setup).
+#
+# Examples:
+#
+#   cities = City.create([{ :name => 'Chicago' }, { :name => 'Copenhagen' }])
+#   Mayor.create(:name => 'Emanuel', :city => cities.first)

vendor/impressionist/test_app/lib/tasks/cucumber.rake

@@ -0,0 +1,53 @@
+# IMPORTANT: This file is generated by cucumber-rails - edit at your own peril.
+# It is recommended to regenerate this file in the future when you upgrade to a
+# newer version of cucumber-rails. Consider adding your own code to a new file
+# instead of editing this one. Cucumber will automatically load all features/**/*.rb
+# files.
+
+
+unless ARGV.any? {|a| a =~ /^gems/} # Don't load anything when running the gems:* tasks
+
+vendored_cucumber_bin = Dir["#{Rails.root}/vendor/{gems,plugins}/cucumber*/bin/cucumber"].first
+$LOAD_PATH.unshift(File.dirname(vendored_cucumber_bin) + '/../lib') unless vendored_cucumber_bin.nil?
+
+begin
+  require 'cucumber/rake/task'
+
+  namespace :cucumber do
+    Cucumber::Rake::Task.new({:ok => 'db:test:prepare'}, 'Run features that should pass') do |t|
+      t.binary = vendored_cucumber_bin # If nil, the gem's binary is used.
+      t.fork = true # You may get faster startup if you set this to false
+      t.profile = 'default'
+    end
+
+    Cucumber::Rake::Task.new({:wip => 'db:test:prepare'}, 'Run features that are being worked on') do |t|
+      t.binary = vendored_cucumber_bin
+      t.fork = true # You may get faster startup if you set this to false
+      t.profile = 'wip'
+    end
+
+    Cucumber::Rake::Task.new({:rerun => 'db:test:prepare'}, 'Record failing features and run only them if any exist') do |t|
+      t.binary = vendored_cucumber_bin
+      t.fork = true # You may get faster startup if you set this to false
+      t.profile = 'rerun'
+    end
+
+    desc 'Run all features'
+    task :all => [:ok, :wip]
+  end
+  desc 'Alias for cucumber:ok'
+  task :cucumber => 'cucumber:ok'
+
+  task :default => :cucumber
+
+  task :features => :cucumber do
+    STDERR.puts "*** The 'features' task is deprecated. See rake -T cucumber ***"
+  end
+rescue LoadError
+  desc 'cucumber rake task not available (cucumber not installed)'
+  task :cucumber do
+    abort 'Cucumber rake task is not available. Be sure to install cucumber as a gem or plugin'
+  end
+end
+
+end

vendor/impressionist/test_app/public/404.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>The page you were looking for doesn't exist (404)</title>
+  <style type="text/css">
+    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
+    div.dialog {
+      width: 25em;
+      padding: 0 4em;
+      margin: 4em auto 0 auto;
+      border: 1px solid #ccc;
+      border-right-color: #999;
+      border-bottom-color: #999;
+    }
+    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/404.html -->
+  <div class="dialog">
+    <h1>The page you were looking for doesn't exist.</h1>
+    <p>You may have mistyped the address or the page may have moved.</p>
+  </div>
+</body>
+</html>

vendor/impressionist/test_app/public/422.html

@@ -0,0 +1,26 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>The change you wanted was rejected (422)</title>
+  <style type="text/css">
+    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
+    div.dialog {
+      width: 25em;
+      padding: 0 4em;
+      margin: 4em auto 0 auto;
+      border: 1px solid #ccc;
+      border-right-color: #999;
+      border-bottom-color: #999;
+    }
+    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/422.html -->
+  <div class="dialog">
+    <h1>The change you wanted was rejected.</h1>
+    <p>Maybe you tried to change something you didn't have access to.</p>
+  </div>
+</body>
+</html>

vendor/impressionist/test_app/public/500.html

@@ -0,0 +1,25 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>We're sorry, but something went wrong (500)</title>
+  <style type="text/css">
+    body { background-color: #fff; color: #666; text-align: center; font-family: arial, sans-serif; }
+    div.dialog {
+      width: 25em;
+      padding: 0 4em;
+      margin: 4em auto 0 auto;
+      border: 1px solid #ccc;
+      border-right-color: #999;
+      border-bottom-color: #999;
+    }
+    h1 { font-size: 100%; color: #f00; line-height: 1.5em; }
+  </style>
+</head>
+
+<body>
+  <!-- This file lives in public/500.html -->
+  <div class="dialog">
+    <h1>We're sorry, but something went wrong.</h1>
+  </div>
+</body>
+</html>

vendor/impressionist/test_app/public/index.html

@@ -0,0 +1,241 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Ruby on Rails: Welcome aboard</title>
+    <style type="text/css" media="screen">
+      body {
+        margin: 0;
+        margin-bottom: 25px;
+        padding: 0;
+        background-color: #f0f0f0;
+        font-family: "Lucida Grande", "Bitstream Vera Sans", "Verdana";
+        font-size: 13px;
+        color: #333;
+      }
+
+      h1 {
+        font-size: 28px;
+        color: #000;
+      }
+
+      a  {color: #03c}
+      a:hover {
+        background-color: #03c;
+        color: white;
+        text-decoration: none;
+      }
+
+
+      #page {
+        background-color: #f0f0f0;
+        width: 750px;
+        margin: 0;
+        margin-left: auto;
+        margin-right: auto;
+      }
+
+      #content {
+        float: left;
+        background-color: white;
+        border: 3px solid #aaa;
+        border-top: none;
+        padding: 25px;
+        width: 500px;
+      }
+
+      #sidebar {
+        float: right;
+        width: 175px;
+      }
+
+      #footer {
+        clear: both;
+      }
+
+      #header, #about, #getting-started {
+        padding-left: 75px;
+        padding-right: 30px;
+      }
+
+
+      #header {
+        background-image: url("assets/rails.png");
+        background-repeat: no-repeat;
+        background-position: top left;
+        height: 64px;
+      }
+      #header h1, #header h2 {margin: 0}
+      #header h2 {
+        color: #888;
+        font-weight: normal;
+        font-size: 16px;
+      }
+
+
+      #about h3 {
+        margin: 0;
+        margin-bottom: 10px;
+        font-size: 14px;
+      }
+
+      #about-content {
+        background-color: #ffd;
+        border: 1px solid #fc0;
+        margin-left: -55px;
+        margin-right: -10px;
+      }
+      #about-content table {
+        margin-top: 10px;
+        margin-bottom: 10px;
+        font-size: 11px;
+        border-collapse: collapse;
+      }
+      #about-content td {
+        padding: 10px;
+        padding-top: 3px;
+        padding-bottom: 3px;
+      }
+      #about-content td.name  {color: #555}
+      #about-content td.value {color: #000}
+
+      #about-content ul {
+        padding: 0;
+        list-style-type: none;
+      }
+
+      #about-content.failure {
+        background-color: #fcc;
+        border: 1px solid #f00;
+      }
+      #about-content.failure p {
+        margin: 0;
+        padding: 10px;
+      }
+
+
+      #getting-started {
+        border-top: 1px solid #ccc;
+        margin-top: 25px;
+        padding-top: 15px;
+      }
+      #getting-started h1 {
+        margin: 0;
+        font-size: 20px;
+      }
+      #getting-started h2 {
+        margin: 0;
+        font-size: 14px;
+        font-weight: normal;
+        color: #333;
+        margin-bottom: 25px;
+      }
+      #getting-started ol {
+        margin-left: 0;
+        padding-left: 0;
+      }
+      #getting-started li {
+        font-size: 18px;
+        color: #888;
+        margin-bottom: 25px;
+      }
+      #getting-started li h2 {
+        margin: 0;
+        font-weight: normal;
+        font-size: 18px;
+        color: #333;
+      }
+      #getting-started li p {
+        color: #555;
+        font-size: 13px;
+      }
+
+
+      #sidebar ul {
+        margin-left: 0;
+        padding-left: 0;
+      }
+      #sidebar ul h3 {
+        margin-top: 25px;
+        font-size: 16px;
+        padding-bottom: 10px;
+        border-bottom: 1px solid #ccc;
+      }
+      #sidebar li {
+        list-style-type: none;
+      }
+      #sidebar ul.links li {
+        margin-bottom: 5px;
+      }
+
+      .filename {
+        font-style: italic;
+      }
+    </style>
+    <script type="text/javascript">
+      function about() {
+        info = document.getElementById('about-content');
+        if (window.XMLHttpRequest)
+          { xhr = new XMLHttpRequest(); }
+        else
+          { xhr = new ActiveXObject("Microsoft.XMLHTTP"); }
+        xhr.open("GET","rails/info/properties",false);
+        xhr.send("");
+        info.innerHTML = xhr.responseText;
+        info.style.display = 'block'
+      }
+    </script>
+  </head>
+  <body>
+    <div id="page">
+      <div id="sidebar">
+        <ul id="sidebar-items">
+          <li>
+            <h3>Browse the documentation</h3>
+            <ul class="links">
+              <li><a href="http://guides.rubyonrails.org/">Rails Guides</a></li>
+              <li><a href="http://api.rubyonrails.org/">Rails API</a></li>
+              <li><a href="http://www.ruby-doc.org/core/">Ruby core</a></li>
+              <li><a href="http://www.ruby-doc.org/stdlib/">Ruby standard library</a></li>
+            </ul>
+          </li>
+        </ul>
+      </div>
+
+      <div id="content">
+        <div id="header">
+          <h1>Welcome aboard</h1>
+          <h2>You&rsquo;re riding Ruby on Rails!</h2>
+        </div>
+
+        <div id="about">
+          <h3><a href="rails/info/properties" onclick="about(); return false">About your application&rsquo;s environment</a></h3>
+          <div id="about-content" style="display: none"></div>
+        </div>
+
+        <div id="getting-started">
+          <h1>Getting started</h1>
+          <h2>Here&rsquo;s how to get rolling:</h2>
+
+          <ol>
+            <li>
+              <h2>Use <code>rails generate</code> to create your models and controllers</h2>
+              <p>To see all available options, run it without parameters.</p>
+            </li>
+
+            <li>
+              <h2>Set up a default route and remove <span class="filename">public/index.html</span></h2>
+              <p>Routes are set up in <span class="filename">config/routes.rb</span>.</p>
+            </li>
+
+            <li>
+              <h2>Create your database</h2>
+              <p>Run <code>rake db:create</code> to create your database. If you're not using SQLite (the default), edit <span class="filename">config/database.yml</span> with your username and password.</p>
+            </li>
+          </ol>
+        </div>
+      </div>
+
+      <div id="footer">&nbsp;</div>
+    </div>
+  </body>
+</html>

vendor/impressionist/test_app/public/javascripts/application.js

@@ -0,0 +1,2 @@
+// Place your application-specific JavaScript functions and classes here
+// This file is automatically included by javascript_include_tag :defaults

vendor/impressionist/test_app/public/javascripts/controls.js

@@ -0,0 +1,965 @@
+// script.aculo.us controls.js v1.8.3, Thu Oct 08 11:23:33 +0200 2009
+
+// Copyright (c) 2005-2009 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
+//           (c) 2005-2009 Ivan Krstic (http://blogs.law.harvard.edu/ivan)
+//           (c) 2005-2009 Jon Tirsen (http://www.tirsen.com)
+// Contributors:
+//  Richard Livsey
+//  Rahul Bhargava
+//  Rob Wills
+//
+// script.aculo.us is freely distributable under the terms of an MIT-style license.
+// For details, see the script.aculo.us web site: http://script.aculo.us/
+
+// Autocompleter.Base handles all the autocompletion functionality
+// that's independent of the data source for autocompletion. This
+// includes drawing the autocompletion menu, observing keyboard
+// and mouse events, and similar.
+//
+// Specific autocompleters need to provide, at the very least,
+// a getUpdatedChoices function that will be invoked every time
+// the text inside the monitored textbox changes. This method
+// should get the text for which to provide autocompletion by
+// invoking this.getToken(), NOT by directly accessing
+// this.element.value. This is to allow incremental tokenized
+// autocompletion. Specific auto-completion logic (AJAX, etc)
+// belongs in getUpdatedChoices.
+//
+// Tokenized incremental autocompletion is enabled automatically
+// when an autocompleter is instantiated with the 'tokens' option
+// in the options parameter, e.g.:
+// new Ajax.Autocompleter('id','upd', '/url/', { tokens: ',' });
+// will incrementally autocomplete with a comma as the token.
+// Additionally, ',' in the above example can be replaced with
+// a token array, e.g. { tokens: [',', '\n'] } which
+// enables autocompletion on multiple tokens. This is most
+// useful when one of the tokens is \n (a newline), as it
+// allows smart autocompletion after linebreaks.
+
+if(typeof Effect == 'undefined')
+  throw("controls.js requires including script.aculo.us' effects.js library");
+
+var Autocompleter = { };
+Autocompleter.Base = Class.create({
+  baseInitialize: function(element, update, options) {
+    element          = $(element);
+    this.element     = element;
+    this.update      = $(update);
+    this.hasFocus    = false;
+    this.changed     = false;
+    this.active      = false;
+    this.index       = 0;
+    this.entryCount  = 0;
+    this.oldElementValue = this.element.value;
+
+    if(this.setOptions)
+      this.setOptions(options);
+    else
+      this.options = options || { };
+
+    this.options.paramName    = this.options.paramName || this.element.name;
+    this.options.tokens       = this.options.tokens || [];
+    this.options.frequency    = this.options.frequency || 0.4;
+    this.options.minChars     = this.options.minChars || 1;
+    this.options.onShow       = this.options.onShow ||
+      function(element, update){
+        if(!update.style.position || update.style.position=='absolute') {
+          update.style.position = 'absolute';
+          Position.clone(element, update, {
+            setHeight: false,
+            offsetTop: element.offsetHeight
+          });
+        }
+        Effect.Appear(update,{duration:0.15});
+      };
+    this.options.onHide = this.options.onHide ||
+      function(element, update){ new Effect.Fade(update,{duration:0.15}) };
+
+    if(typeof(this.options.tokens) == 'string')
+      this.options.tokens = new Array(this.options.tokens);
+    // Force carriage returns as token delimiters anyway
+    if (!this.options.tokens.include('\n'))
+      this.options.tokens.push('\n');
+
+    this.observer = null;
+
+    this.element.setAttribute('autocomplete','off');
+
+    Element.hide(this.update);
+
+    Event.observe(this.element, 'blur', this.onBlur.bindAsEventListener(this));
+    Event.observe(this.element, 'keydown', this.onKeyPress.bindAsEventListener(this));
+  },
+
+  show: function() {
+    if(Element.getStyle(this.update, 'display')=='none') this.options.onShow(this.element, this.update);
+    if(!this.iefix &&
+      (Prototype.Browser.IE) &&
+      (Element.getStyle(this.update, 'position')=='absolute')) {
+      new Insertion.After(this.update,
+       '<iframe id="' + this.update.id + '_iefix" '+
+       'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' +
+       'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
+      this.iefix = $(this.update.id+'_iefix');
+    }
+    if(this.iefix) setTimeout(this.fixIEOverlapping.bind(this), 50);
+  },
+
+  fixIEOverlapping: function() {
+    Position.clone(this.update, this.iefix, {setTop:(!this.update.style.height)});
+    this.iefix.style.zIndex = 1;
+    this.update.style.zIndex = 2;
+    Element.show(this.iefix);
+  },
+
+  hide: function() {
+    this.stopIndicator();
+    if(Element.getStyle(this.update, 'display')!='none') this.options.onHide(this.element, this.update);
+    if(this.iefix) Element.hide(this.iefix);
+  },
+
+  startIndicator: function() {
+    if(this.options.indicator) Element.show(this.options.indicator);
+  },
+
+  stopIndicator: function() {
+    if(this.options.indicator) Element.hide(this.options.indicator);
+  },
+
+  onKeyPress: function(event) {
+    if(this.active)
+      switch(event.keyCode) {
+       case Event.KEY_TAB:
+       case Event.KEY_RETURN:
+         this.selectEntry();
+         Event.stop(event);
+       case Event.KEY_ESC:
+         this.hide();
+         this.active = false;
+         Event.stop(event);
+         return;
+       case Event.KEY_LEFT:
+       case Event.KEY_RIGHT:
+         return;
+       case Event.KEY_UP:
+         this.markPrevious();
+         this.render();
+         Event.stop(event);
+         return;
+       case Event.KEY_DOWN:
+         this.markNext();
+         this.render();
+         Event.stop(event);
+         return;
+      }
+     else
+       if(event.keyCode==Event.KEY_TAB || event.keyCode==Event.KEY_RETURN ||
+         (Prototype.Browser.WebKit > 0 && event.keyCode == 0)) return;
+
+    this.changed = true;
+    this.hasFocus = true;
+
+    if(this.observer) clearTimeout(this.observer);
+      this.observer =
+        setTimeout(this.onObserverEvent.bind(this), this.options.frequency*1000);
+  },
+
+  activate: function() {
+    this.changed = false;
+    this.hasFocus = true;
+    this.getUpdatedChoices();
+  },
+
+  onHover: function(event) {
+    var element = Event.findElement(event, 'LI');
+    if(this.index != element.autocompleteIndex)
+    {
+        this.index = element.autocompleteIndex;
+        this.render();
+    }
+    Event.stop(event);
+  },
+
+  onClick: function(event) {
+    var element = Event.findElement(event, 'LI');
+    this.index = element.autocompleteIndex;
+    this.selectEntry();
+    this.hide();
+  },
+
+  onBlur: function(event) {
+    // needed to make click events working
+    setTimeout(this.hide.bind(this), 250);
+    this.hasFocus = false;
+    this.active = false;
+  },
+
+  render: function() {
+    if(this.entryCount > 0) {
+      for (var i = 0; i < this.entryCount; i++)
+        this.index==i ?
+          Element.addClassName(this.getEntry(i),"selected") :
+          Element.removeClassName(this.getEntry(i),"selected");
+      if(this.hasFocus) {
+        this.show();
+        this.active = true;
+      }
+    } else {
+      this.active = false;
+      this.hide();
+    }
+  },
+
+  markPrevious: function() {
+    if(this.index > 0) this.index--;
+      else this.index = this.entryCount-1;
+    this.getEntry(this.index).scrollIntoView(true);
+  },
+
+  markNext: function() {
+    if(this.index < this.entryCount-1) this.index++;
+      else this.index = 0;
+    this.getEntry(this.index).scrollIntoView(false);
+  },
+
+  getEntry: function(index) {
+    return this.update.firstChild.childNodes[index];
+  },
+
+  getCurrentEntry: function() {
+    return this.getEntry(this.index);
+  },
+
+  selectEntry: function() {
+    this.active = false;
+    this.updateElement(this.getCurrentEntry());
+  },
+
+  updateElement: function(selectedElement) {
+    if (this.options.updateElement) {
+      this.options.updateElement(selectedElement);
+      return;
+    }
+    var value = '';
+    if (this.options.select) {
+      var nodes = $(selectedElement).select('.' + this.options.select) || [];
+      if(nodes.length>0) value = Element.collectTextNodes(nodes[0], this.options.select);
+    } else
+      value = Element.collectTextNodesIgnoreClass(selectedElement, 'informal');
+
+    var bounds = this.getTokenBounds();
+    if (bounds[0] != -1) {
+      var newValue = this.element.value.substr(0, bounds[0]);
+      var whitespace = this.element.value.substr(bounds[0]).match(/^\s+/);
+      if (whitespace)
+        newValue += whitespace[0];
+      this.element.value = newValue + value + this.element.value.substr(bounds[1]);
+    } else {
+      this.element.value = value;
+    }
+    this.oldElementValue = this.element.value;
+    this.element.focus();
+
+    if (this.options.afterUpdateElement)
+      this.options.afterUpdateElement(this.element, selectedElement);
+  },
+
+  updateChoices: function(choices) {
+    if(!this.changed && this.hasFocus) {
+      this.update.innerHTML = choices;
+      Element.cleanWhitespace(this.update);
+      Element.cleanWhitespace(this.update.down());
+
+      if(this.update.firstChild && this.update.down().childNodes) {
+        this.entryCount =
+          this.update.down().childNodes.length;
+        for (var i = 0; i < this.entryCount; i++) {
+          var entry = this.getEntry(i);
+          entry.autocompleteIndex = i;
+          this.addObservers(entry);
+        }
+      } else {
+        this.entryCount = 0;
+      }
+
+      this.stopIndicator();
+      this.index = 0;
+
+      if(this.entryCount==1 && this.options.autoSelect) {
+        this.selectEntry();
+        this.hide();
+      } else {
+        this.render();
+      }
+    }
+  },
+
+  addObservers: function(element) {
+    Event.observe(element, "mouseover", this.onHover.bindAsEventListener(this));
+    Event.observe(element, "click", this.onClick.bindAsEventListener(this));
+  },
+
+  onObserverEvent: function() {
+    this.changed = false;
+    this.tokenBounds = null;
+    if(this.getToken().length>=this.options.minChars) {
+      this.getUpdatedChoices();
+    } else {
+      this.active = false;
+      this.hide();
+    }
+    this.oldElementValue = this.element.value;
+  },
+
+  getToken: function() {
+    var bounds = this.getTokenBounds();
+    return this.element.value.substring(bounds[0], bounds[1]).strip();
+  },
+
+  getTokenBounds: function() {
+    if (null != this.tokenBounds) return this.tokenBounds;
+    var value = this.element.value;
+    if (value.strip().empty()) return [-1, 0];
+    var diff = arguments.callee.getFirstDifferencePos(value, this.oldElementValue);
+    var offset = (diff == this.oldElementValue.length ? 1 : 0);
+    var prevTokenPos = -1, nextTokenPos = value.length;
+    var tp;
+    for (var index = 0, l = this.options.tokens.length; index < l; ++index) {
+      tp = value.lastIndexOf(this.options.tokens[index], diff + offset - 1);
+      if (tp > prevTokenPos) prevTokenPos = tp;
+      tp = value.indexOf(this.options.tokens[index], diff + offset);
+      if (-1 != tp && tp < nextTokenPos) nextTokenPos = tp;
+    }
+    return (this.tokenBounds = [prevTokenPos + 1, nextTokenPos]);
+  }
+});
+
+Autocompleter.Base.prototype.getTokenBounds.getFirstDifferencePos = function(newS, oldS) {
+  var boundary = Math.min(newS.length, oldS.length);
+  for (var index = 0; index < boundary; ++index)
+    if (newS[index] != oldS[index])
+      return index;
+  return boundary;
+};
+
+Ajax.Autocompleter = Class.create(Autocompleter.Base, {
+  initialize: function(element, update, url, options) {
+    this.baseInitialize(element, update, options);
+    this.options.asynchronous  = true;
+    this.options.onComplete    = this.onComplete.bind(this);
+    this.options.defaultParams = this.options.parameters || null;
+    this.url                   = url;
+  },
+
+  getUpdatedChoices: function() {
+    this.startIndicator();
+
+    var entry = encodeURIComponent(this.options.paramName) + '=' +
+      encodeURIComponent(this.getToken());
+
+    this.options.parameters = this.options.callback ?
+      this.options.callback(this.element, entry) : entry;
+
+    if(this.options.defaultParams)
+      this.options.parameters += '&' + this.options.defaultParams;
+
+    new Ajax.Request(this.url, this.options);
+  },
+
+  onComplete: function(request) {
+    this.updateChoices(request.responseText);
+  }
+});
+
+// The local array autocompleter. Used when you'd prefer to
+// inject an array of autocompletion options into the page, rather
+// than sending out Ajax queries, which can be quite slow sometimes.
+//
+// The constructor takes four parameters. The first two are, as usual,
+// the id of the monitored textbox, and id of the autocompletion menu.
+// The third is the array you want to autocomplete from, and the fourth
+// is the options block.
+//
+// Extra local autocompletion options:
+// - choices - How many autocompletion choices to offer
+//
+// - partialSearch - If false, the autocompleter will match entered
+//                    text only at the beginning of strings in the
+//                    autocomplete array. Defaults to true, which will
+//                    match text at the beginning of any *word* in the
+//                    strings in the autocomplete array. If you want to
+//                    search anywhere in the string, additionally set
+//                    the option fullSearch to true (default: off).
+//
+// - fullSsearch - Search anywhere in autocomplete array strings.
+//
+// - partialChars - How many characters to enter before triggering
+//                   a partial match (unlike minChars, which defines
+//                   how many characters are required to do any match
+//                   at all). Defaults to 2.
+//
+// - ignoreCase - Whether to ignore case when autocompleting.
+//                 Defaults to true.
+//
+// It's possible to pass in a custom function as the 'selector'
+// option, if you prefer to write your own autocompletion logic.
+// In that case, the other options above will not apply unless
+// you support them.
+
+Autocompleter.Local = Class.create(Autocompleter.Base, {
+  initialize: function(element, update, array, options) {
+    this.baseInitialize(element, update, options);
+    this.options.array = array;
+  },
+
+  getUpdatedChoices: function() {
+    this.updateChoices(this.options.selector(this));
+  },
+
+  setOptions: function(options) {
+    this.options = Object.extend({
+      choices: 10,
+      partialSearch: true,
+      partialChars: 2,
+      ignoreCase: true,
+      fullSearch: false,
+      selector: function(instance) {
+        var ret       = []; // Beginning matches
+        var partial   = []; // Inside matches
+        var entry     = instance.getToken();
+        var count     = 0;
+
+        for (var i = 0; i < instance.options.array.length &&
+          ret.length < instance.options.choices ; i++) {
+
+          var elem = instance.options.array[i];
+          var foundPos = instance.options.ignoreCase ?
+            elem.toLowerCase().indexOf(entry.toLowerCase()) :
+            elem.indexOf(entry);
+
+          while (foundPos != -1) {
+            if (foundPos == 0 && elem.length != entry.length) {
+              ret.push("<li><strong>" + elem.substr(0, entry.length) + "</strong>" +
+                elem.substr(entry.length) + "</li>");
+              break;
+            } else if (entry.length >= instance.options.partialChars &&
+              instance.options.partialSearch && foundPos != -1) {
+              if (instance.options.fullSearch || /\s/.test(elem.substr(foundPos-1,1))) {
+                partial.push("<li>" + elem.substr(0, foundPos) + "<strong>" +
+                  elem.substr(foundPos, entry.length) + "</strong>" + elem.substr(
+                  foundPos + entry.length) + "</li>");
+                break;
+              }
+            }
+
+            foundPos = instance.options.ignoreCase ?
+              elem.toLowerCase().indexOf(entry.toLowerCase(), foundPos + 1) :
+              elem.indexOf(entry, foundPos + 1);
+
+          }
+        }
+        if (partial.length)
+          ret = ret.concat(partial.slice(0, instance.options.choices - ret.length));
+        return "<ul>" + ret.join('') + "</ul>";
+      }
+    }, options || { });
+  }
+});
+
+// AJAX in-place editor and collection editor
+// Full rewrite by Christophe Porteneuve <tdd@tddsworld.com> (April 2007).
+
+// Use this if you notice weird scrolling problems on some browsers,
+// the DOM might be a bit confused when this gets called so do this
+// waits 1 ms (with setTimeout) until it does the activation
+Field.scrollFreeActivate = function(field) {
+  setTimeout(function() {
+    Field.activate(field);
+  }, 1);
+};
+
+Ajax.InPlaceEditor = Class.create({
+  initialize: function(element, url, options) {
+    this.url = url;
+    this.element = element = $(element);
+    this.prepareOptions();
+    this._controls = { };
+    arguments.callee.dealWithDeprecatedOptions(options); // DEPRECATION LAYER!!!
+    Object.extend(this.options, options || { });
+    if (!this.options.formId && this.element.id) {
+      this.options.formId = this.element.id + '-inplaceeditor';
+      if ($(this.options.formId))
+        this.options.formId = '';
+    }
+    if (this.options.externalControl)
+      this.options.externalControl = $(this.options.externalControl);
+    if (!this.options.externalControl)
+      this.options.externalControlOnly = false;
+    this._originalBackground = this.element.getStyle('background-color') || 'transparent';
+    this.element.title = this.options.clickToEditText;
+    this._boundCancelHandler = this.handleFormCancellation.bind(this);
+    this._boundComplete = (this.options.onComplete || Prototype.emptyFunction).bind(this);
+    this._boundFailureHandler = this.handleAJAXFailure.bind(this);
+    this._boundSubmitHandler = this.handleFormSubmission.bind(this);
+    this._boundWrapperHandler = this.wrapUp.bind(this);
+    this.registerListeners();
+  },
+  checkForEscapeOrReturn: function(e) {
+    if (!this._editing || e.ctrlKey || e.altKey || e.shiftKey) return;
+    if (Event.KEY_ESC == e.keyCode)
+      this.handleFormCancellation(e);
+    else if (Event.KEY_RETURN == e.keyCode)
+      this.handleFormSubmission(e);
+  },
+  createControl: function(mode, handler, extraClasses) {
+    var control = this.options[mode + 'Control'];
+    var text = this.options[mode + 'Text'];
+    if ('button' == control) {
+      var btn = document.createElement('input');
+      btn.type = 'submit';
+      btn.value = text;
+      btn.className = 'editor_' + mode + '_button';
+      if ('cancel' == mode)
+        btn.onclick = this._boundCancelHandler;
+      this._form.appendChild(btn);
+      this._controls[mode] = btn;
+    } else if ('link' == control) {
+      var link = document.createElement('a');
+      link.href = '#';
+      link.appendChild(document.createTextNode(text));
+      link.onclick = 'cancel' == mode ? this._boundCancelHandler : this._boundSubmitHandler;
+      link.className = 'editor_' + mode + '_link';
+      if (extraClasses)
+        link.className += ' ' + extraClasses;
+      this._form.appendChild(link);
+      this._controls[mode] = link;
+    }
+  },
+  createEditField: function() {
+    var text = (this.options.loadTextURL ? this.options.loadingText : this.getText());
+    var fld;
+    if (1 >= this.options.rows && !/\r|\n/.test(this.getText())) {
+      fld = document.createElement('input');
+      fld.type = 'text';
+      var size = this.options.size || this.options.cols || 0;
+      if (0 < size) fld.size = size;
+    } else {
+      fld = document.createElement('textarea');
+      fld.rows = (1 >= this.options.rows ? this.options.autoRows : this.options.rows);
+      fld.cols = this.options.cols || 40;
+    }
+    fld.name = this.options.paramName;
+    fld.value = text; // No HTML breaks conversion anymore
+    fld.className = 'editor_field';
+    if (this.options.submitOnBlur)
+      fld.onblur = this._boundSubmitHandler;
+    this._controls.editor = fld;
+    if (this.options.loadTextURL)
+      this.loadExternalText();
+    this._form.appendChild(this._controls.editor);
+  },
+  createForm: function() {
+    var ipe = this;
+    function addText(mode, condition) {
+      var text = ipe.options['text' + mode + 'Controls'];
+      if (!text || condition === false) return;
+      ipe._form.appendChild(document.createTextNode(text));
+    };
+    this._form = $(document.createElement('form'));
+    this._form.id = this.options.formId;
+    this._form.addClassName(this.options.formClassName);
+    this._form.onsubmit = this._boundSubmitHandler;
+    this.createEditField();
+    if ('textarea' == this._controls.editor.tagName.toLowerCase())
+      this._form.appendChild(document.createElement('br'));
+    if (this.options.onFormCustomization)
+      this.options.onFormCustomization(this, this._form);
+    addText('Before', this.options.okControl || this.options.cancelControl);
+    this.createControl('ok', this._boundSubmitHandler);
+    addText('Between', this.options.okControl && this.options.cancelControl);
+    this.createControl('cancel', this._boundCancelHandler, 'editor_cancel');
+    addText('After', this.options.okControl || this.options.cancelControl);
+  },
+  destroy: function() {
+    if (this._oldInnerHTML)
+      this.element.innerHTML = this._oldInnerHTML;
+    this.leaveEditMode();
+    this.unregisterListeners();
+  },
+  enterEditMode: function(e) {
+    if (this._saving || this._editing) return;
+    this._editing = true;
+    this.triggerCallback('onEnterEditMode');
+    if (this.options.externalControl)
+      this.options.externalControl.hide();
+    this.element.hide();
+    this.createForm();
+    this.element.parentNode.insertBefore(this._form, this.element);
+    if (!this.options.loadTextURL)
+      this.postProcessEditField();
+    if (e) Event.stop(e);
+  },
+  enterHover: function(e) {
+    if (this.options.hoverClassName)
+      this.element.addClassName(this.options.hoverClassName);
+    if (this._saving) return;
+    this.triggerCallback('onEnterHover');
+  },
+  getText: function() {
+    return this.element.innerHTML.unescapeHTML();
+  },
+  handleAJAXFailure: function(transport) {
+    this.triggerCallback('onFailure', transport);
+    if (this._oldInnerHTML) {
+      this.element.innerHTML = this._oldInnerHTML;
+      this._oldInnerHTML = null;
+    }
+  },
+  handleFormCancellation: function(e) {
+    this.wrapUp();
+    if (e) Event.stop(e);
+  },
+  handleFormSubmission: function(e) {
+    var form = this._form;
+    var value = $F(this._controls.editor);
+    this.prepareSubmission();
+    var params = this.options.callback(form, value) || '';
+    if (Object.isString(params))
+      params = params.toQueryParams();
+    params.editorId = this.element.id;
+    if (this.options.htmlResponse) {
+      var options = Object.extend({ evalScripts: true }, this.options.ajaxOptions);
+      Object.extend(options, {
+        parameters: params,
+        onComplete: this._boundWrapperHandler,
+        onFailure: this._boundFailureHandler
+      });
+      new Ajax.Updater({ success: this.element }, this.url, options);
+    } else {
+      var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
+      Object.extend(options, {
+        parameters: params,
+        onComplete: this._boundWrapperHandler,
+        onFailure: this._boundFailureHandler
+      });
+      new Ajax.Request(this.url, options);
+    }
+    if (e) Event.stop(e);
+  },
+  leaveEditMode: function() {
+    this.element.removeClassName(this.options.savingClassName);
+    this.removeForm();
+    this.leaveHover();
+    this.element.style.backgroundColor = this._originalBackground;
+    this.element.show();
+    if (this.options.externalControl)
+      this.options.externalControl.show();
+    this._saving = false;
+    this._editing = false;
+    this._oldInnerHTML = null;
+    this.triggerCallback('onLeaveEditMode');
+  },
+  leaveHover: function(e) {
+    if (this.options.hoverClassName)
+      this.element.removeClassName(this.options.hoverClassName);
+    if (this._saving) return;
+    this.triggerCallback('onLeaveHover');
+  },
+  loadExternalText: function() {
+    this._form.addClassName(this.options.loadingClassName);
+    this._controls.editor.disabled = true;
+    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
+    Object.extend(options, {
+      parameters: 'editorId=' + encodeURIComponent(this.element.id),
+      onComplete: Prototype.emptyFunction,
+      onSuccess: function(transport) {
+        this._form.removeClassName(this.options.loadingClassName);
+        var text = transport.responseText;
+        if (this.options.stripLoadedTextTags)
+          text = text.stripTags();
+        this._controls.editor.value = text;
+        this._controls.editor.disabled = false;
+        this.postProcessEditField();
+      }.bind(this),
+      onFailure: this._boundFailureHandler
+    });
+    new Ajax.Request(this.options.loadTextURL, options);
+  },
+  postProcessEditField: function() {
+    var fpc = this.options.fieldPostCreation;
+    if (fpc)
+      $(this._controls.editor)['focus' == fpc ? 'focus' : 'activate']();
+  },
+  prepareOptions: function() {
+    this.options = Object.clone(Ajax.InPlaceEditor.DefaultOptions);
+    Object.extend(this.options, Ajax.InPlaceEditor.DefaultCallbacks);
+    [this._extraDefaultOptions].flatten().compact().each(function(defs) {
+      Object.extend(this.options, defs);
+    }.bind(this));
+  },
+  prepareSubmission: function() {
+    this._saving = true;
+    this.removeForm();
+    this.leaveHover();
+    this.showSaving();
+  },
+  registerListeners: function() {
+    this._listeners = { };
+    var listener;
+    $H(Ajax.InPlaceEditor.Listeners).each(function(pair) {
+      listener = this[pair.value].bind(this);
+      this._listeners[pair.key] = listener;
+      if (!this.options.externalControlOnly)
+        this.element.observe(pair.key, listener);
+      if (this.options.externalControl)
+        this.options.externalControl.observe(pair.key, listener);
+    }.bind(this));
+  },
+  removeForm: function() {
+    if (!this._form) return;
+    this._form.remove();
+    this._form = null;
+    this._controls = { };
+  },
+  showSaving: function() {
+    this._oldInnerHTML = this.element.innerHTML;
+    this.element.innerHTML = this.options.savingText;
+    this.element.addClassName(this.options.savingClassName);
+    this.element.style.backgroundColor = this._originalBackground;
+    this.element.show();
+  },
+  triggerCallback: function(cbName, arg) {
+    if ('function' == typeof this.options[cbName]) {
+      this.options[cbName](this, arg);
+    }
+  },
+  unregisterListeners: function() {
+    $H(this._listeners).each(function(pair) {
+      if (!this.options.externalControlOnly)
+        this.element.stopObserving(pair.key, pair.value);
+      if (this.options.externalControl)
+        this.options.externalControl.stopObserving(pair.key, pair.value);
+    }.bind(this));
+  },
+  wrapUp: function(transport) {
+    this.leaveEditMode();
+    // Can't use triggerCallback due to backward compatibility: requires
+    // binding + direct element
+    this._boundComplete(transport, this.element);
+  }
+});
+
+Object.extend(Ajax.InPlaceEditor.prototype, {
+  dispose: Ajax.InPlaceEditor.prototype.destroy
+});
+
+Ajax.InPlaceCollectionEditor = Class.create(Ajax.InPlaceEditor, {
+  initialize: function($super, element, url, options) {
+    this._extraDefaultOptions = Ajax.InPlaceCollectionEditor.DefaultOptions;
+    $super(element, url, options);
+  },
+
+  createEditField: function() {
+    var list = document.createElement('select');
+    list.name = this.options.paramName;
+    list.size = 1;
+    this._controls.editor = list;
+    this._collection = this.options.collection || [];
+    if (this.options.loadCollectionURL)
+      this.loadCollection();
+    else
+      this.checkForExternalText();
+    this._form.appendChild(this._controls.editor);
+  },
+
+  loadCollection: function() {
+    this._form.addClassName(this.options.loadingClassName);
+    this.showLoadingText(this.options.loadingCollectionText);
+    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
+    Object.extend(options, {
+      parameters: 'editorId=' + encodeURIComponent(this.element.id),
+      onComplete: Prototype.emptyFunction,
+      onSuccess: function(transport) {
+        var js = transport.responseText.strip();
+        if (!/^\[.*\]$/.test(js)) // TODO: improve sanity check
+          throw('Server returned an invalid collection representation.');
+        this._collection = eval(js);
+        this.checkForExternalText();
+      }.bind(this),
+      onFailure: this.onFailure
+    });
+    new Ajax.Request(this.options.loadCollectionURL, options);
+  },
+
+  showLoadingText: function(text) {
+    this._controls.editor.disabled = true;
+    var tempOption = this._controls.editor.firstChild;
+    if (!tempOption) {
+      tempOption = document.createElement('option');
+      tempOption.value = '';
+      this._controls.editor.appendChild(tempOption);
+      tempOption.selected = true;
+    }
+    tempOption.update((text || '').stripScripts().stripTags());
+  },
+
+  checkForExternalText: function() {
+    this._text = this.getText();
+    if (this.options.loadTextURL)
+      this.loadExternalText();
+    else
+      this.buildOptionList();
+  },
+
+  loadExternalText: function() {
+    this.showLoadingText(this.options.loadingText);
+    var options = Object.extend({ method: 'get' }, this.options.ajaxOptions);
+    Object.extend(options, {
+      parameters: 'editorId=' + encodeURIComponent(this.element.id),
+      onComplete: Prototype.emptyFunction,
+      onSuccess: function(transport) {
+        this._text = transport.responseText.strip();
+        this.buildOptionList();
+      }.bind(this),
+      onFailure: this.onFailure
+    });
+    new Ajax.Request(this.options.loadTextURL, options);
+  },
+
+  buildOptionList: function() {
+    this._form.removeClassName(this.options.loadingClassName);
+    this._collection = this._collection.map(function(entry) {
+      return 2 === entry.length ? entry : [entry, entry].flatten();
+    });
+    var marker = ('value' in this.options) ? this.options.value : this._text;
+    var textFound = this._collection.any(function(entry) {
+      return entry[0] == marker;
+    }.bind(this));
+    this._controls.editor.update('');
+    var option;
+    this._collection.each(function(entry, index) {
+      option = document.createElement('option');
+      option.value = entry[0];
+      option.selected = textFound ? entry[0] == marker : 0 == index;
+      option.appendChild(document.createTextNode(entry[1]));
+      this._controls.editor.appendChild(option);
+    }.bind(this));
+    this._controls.editor.disabled = false;
+    Field.scrollFreeActivate(this._controls.editor);
+  }
+});
+
+//**** DEPRECATION LAYER FOR InPlace[Collection]Editor! ****
+//**** This only  exists for a while,  in order to  let ****
+//**** users adapt to  the new API.  Read up on the new ****
+//**** API and convert your code to it ASAP!            ****
+
+Ajax.InPlaceEditor.prototype.initialize.dealWithDeprecatedOptions = function(options) {
+  if (!options) return;
+  function fallback(name, expr) {
+    if (name in options || expr === undefined) return;
+    options[name] = expr;
+  };
+  fallback('cancelControl', (options.cancelLink ? 'link' : (options.cancelButton ? 'button' :
+    options.cancelLink == options.cancelButton == false ? false : undefined)));
+  fallback('okControl', (options.okLink ? 'link' : (options.okButton ? 'button' :
+    options.okLink == options.okButton == false ? false : undefined)));
+  fallback('highlightColor', options.highlightcolor);
+  fallback('highlightEndColor', options.highlightendcolor);
+};
+
+Object.extend(Ajax.InPlaceEditor, {
+  DefaultOptions: {
+    ajaxOptions: { },
+    autoRows: 3,                                // Use when multi-line w/ rows == 1
+    cancelControl: 'link',                      // 'link'|'button'|false
+    cancelText: 'cancel',
+    clickToEditText: 'Click to edit',
+    externalControl: null,                      // id|elt
+    externalControlOnly: false,
+    fieldPostCreation: 'activate',              // 'activate'|'focus'|false
+    formClassName: 'inplaceeditor-form',
+    formId: null,                               // id|elt
+    highlightColor: '#ffff99',
+    highlightEndColor: '#ffffff',
+    hoverClassName: '',
+    htmlResponse: true,
+    loadingClassName: 'inplaceeditor-loading',
+    loadingText: 'Loading...',
+    okControl: 'button',                        // 'link'|'button'|false
+    okText: 'ok',
+    paramName: 'value',
+    rows: 1,                                    // If 1 and multi-line, uses autoRows
+    savingClassName: 'inplaceeditor-saving',
+    savingText: 'Saving...',
+    size: 0,
+    stripLoadedTextTags: false,
+    submitOnBlur: false,
+    textAfterControls: '',
+    textBeforeControls: '',
+    textBetweenControls: ''
+  },
+  DefaultCallbacks: {
+    callback: function(form) {
+      return Form.serialize(form);
+    },
+    onComplete: function(transport, element) {
+      // For backward compatibility, this one is bound to the IPE, and passes
+      // the element directly.  It was too often customized, so we don't break it.
+      new Effect.Highlight(element, {
+        startcolor: this.options.highlightColor, keepBackgroundImage: true });
+    },
+    onEnterEditMode: null,
+    onEnterHover: function(ipe) {
+      ipe.element.style.backgroundColor = ipe.options.highlightColor;
+      if (ipe._effect)
+        ipe._effect.cancel();
+    },
+    onFailure: function(transport, ipe) {
+      alert('Error communication with the server: ' + transport.responseText.stripTags());
+    },
+    onFormCustomization: null, // Takes the IPE and its generated form, after editor, before controls.
+    onLeaveEditMode: null,
+    onLeaveHover: function(ipe) {
+      ipe._effect = new Effect.Highlight(ipe.element, {
+        startcolor: ipe.options.highlightColor, endcolor: ipe.options.highlightEndColor,
+        restorecolor: ipe._originalBackground, keepBackgroundImage: true
+      });
+    }
+  },
+  Listeners: {
+    click: 'enterEditMode',
+    keydown: 'checkForEscapeOrReturn',
+    mouseover: 'enterHover',
+    mouseout: 'leaveHover'
+  }
+});
+
+Ajax.InPlaceCollectionEditor.DefaultOptions = {
+  loadingCollectionText: 'Loading options...'
+};
+
+// Delayed observer, like Form.Element.Observer,
+// but waits for delay after last key input
+// Ideal for live-search fields
+
+Form.Element.DelayedObserver = Class.create({
+  initialize: function(element, delay, callback) {
+    this.delay     = delay || 0.5;
+    this.element   = $(element);
+    this.callback  = callback;
+    this.timer     = null;
+    this.lastValue = $F(this.element);
+    Event.observe(this.element,'keyup',this.delayedListener.bindAsEventListener(this));
+  },
+  delayedListener: function(event) {
+    if(this.lastValue == $F(this.element)) return;
+    if(this.timer) clearTimeout(this.timer);
+    this.timer = setTimeout(this.onTimerEvent.bind(this), this.delay * 1000);
+    this.lastValue = $F(this.element);
+  },
+  onTimerEvent: function() {
+    this.timer = null;
+    this.callback(this.element, $F(this.element));
+  }
+});

vendor/impressionist/test_app/public/javascripts/dragdrop.js

@@ -0,0 +1,974 @@
+// script.aculo.us dragdrop.js v1.8.3, Thu Oct 08 11:23:33 +0200 2009
+
+// Copyright (c) 2005-2009 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
+//
+// script.aculo.us is freely distributable under the terms of an MIT-style license.
+// For details, see the script.aculo.us web site: http://script.aculo.us/
+
+if(Object.isUndefined(Effect))
+  throw("dragdrop.js requires including script.aculo.us' effects.js library");
+
+var Droppables = {
+  drops: [],
+
+  remove: function(element) {
+    this.drops = this.drops.reject(function(d) { return d.element==$(element) });
+  },
+
+  add: function(element) {
+    element = $(element);
+    var options = Object.extend({
+      greedy:     true,
+      hoverclass: null,
+      tree:       false
+    }, arguments[1] || { });
+
+    // cache containers
+    if(options.containment) {
+      options._containers = [];
+      var containment = options.containment;
+      if(Object.isArray(containment)) {
+        containment.each( function(c) { options._containers.push($(c)) });
+      } else {
+        options._containers.push($(containment));
+      }
+    }
+
+    if(options.accept) options.accept = [options.accept].flatten();
+
+    Element.makePositioned(element); // fix IE
+    options.element = element;
+
+    this.drops.push(options);
+  },
+
+  findDeepestChild: function(drops) {
+    deepest = drops[0];
+
+    for (i = 1; i < drops.length; ++i)
+      if (Element.isParent(drops[i].element, deepest.element))
+        deepest = drops[i];
+
+    return deepest;
+  },
+
+  isContained: function(element, drop) {
+    var containmentNode;
+    if(drop.tree) {
+      containmentNode = element.treeNode;
+    } else {
+      containmentNode = element.parentNode;
+    }
+    return drop._containers.detect(function(c) { return containmentNode == c });
+  },
+
+  isAffected: function(point, element, drop) {
+    return (
+      (drop.element!=element) &&
+      ((!drop._containers) ||
+        this.isContained(element, drop)) &&
+      ((!drop.accept) ||
+        (Element.classNames(element).detect(
+          function(v) { return drop.accept.include(v) } ) )) &&
+      Position.within(drop.element, point[0], point[1]) );
+  },
+
+  deactivate: function(drop) {
+    if(drop.hoverclass)
+      Element.removeClassName(drop.element, drop.hoverclass);
+    this.last_active = null;
+  },
+
+  activate: function(drop) {
+    if(drop.hoverclass)
+      Element.addClassName(drop.element, drop.hoverclass);
+    this.last_active = drop;
+  },
+
+  show: function(point, element) {
+    if(!this.drops.length) return;
+    var drop, affected = [];
+
+    this.drops.each( function(drop) {
+      if(Droppables.isAffected(point, element, drop))
+        affected.push(drop);
+    });
+
+    if(affected.length>0)
+      drop = Droppables.findDeepestChild(affected);
+
+    if(this.last_active && this.last_active != drop) this.deactivate(this.last_active);
+    if (drop) {
+      Position.within(drop.element, point[0], point[1]);
+      if(drop.onHover)
+        drop.onHover(element, drop.element, Position.overlap(drop.overlap, drop.element));
+
+      if (drop != this.last_active) Droppables.activate(drop);
+    }
+  },
+
+  fire: function(event, element) {
+    if(!this.last_active) return;
+    Position.prepare();
+
+    if (this.isAffected([Event.pointerX(event), Event.pointerY(event)], element, this.last_active))
+      if (this.last_active.onDrop) {
+        this.last_active.onDrop(element, this.last_active.element, event);
+        return true;
+      }
+  },
+
+  reset: function() {
+    if(this.last_active)
+      this.deactivate(this.last_active);
+  }
+};
+
+var Draggables = {
+  drags: [],
+  observers: [],
+
+  register: function(draggable) {
+    if(this.drags.length == 0) {
+      this.eventMouseUp   = this.endDrag.bindAsEventListener(this);
+      this.eventMouseMove = this.updateDrag.bindAsEventListener(this);
+      this.eventKeypress  = this.keyPress.bindAsEventListener(this);
+
+      Event.observe(document, "mouseup", this.eventMouseUp);
+      Event.observe(document, "mousemove", this.eventMouseMove);
+      Event.observe(document, "keypress", this.eventKeypress);
+    }
+    this.drags.push(draggable);
+  },
+
+  unregister: function(draggable) {
+    this.drags = this.drags.reject(function(d) { return d==draggable });
+    if(this.drags.length == 0) {
+      Event.stopObserving(document, "mouseup", this.eventMouseUp);
+      Event.stopObserving(document, "mousemove", this.eventMouseMove);
+      Event.stopObserving(document, "keypress", this.eventKeypress);
+    }
+  },
+
+  activate: function(draggable) {
+    if(draggable.options.delay) {
+      this._timeout = setTimeout(function() {
+        Draggables._timeout = null;
+        window.focus();
+        Draggables.activeDraggable = draggable;
+      }.bind(this), draggable.options.delay);
+    } else {
+      window.focus(); // allows keypress events if window isn't currently focused, fails for Safari
+      this.activeDraggable = draggable;
+    }
+  },
+
+  deactivate: function() {
+    this.activeDraggable = null;
+  },
+
+  updateDrag: function(event) {
+    if(!this.activeDraggable) return;
+    var pointer = [Event.pointerX(event), Event.pointerY(event)];
+    // Mozilla-based browsers fire successive mousemove events with
+    // the same coordinates, prevent needless redrawing (moz bug?)
+    if(this._lastPointer && (this._lastPointer.inspect() == pointer.inspect())) return;
+    this._lastPointer = pointer;
+
+    this.activeDraggable.updateDrag(event, pointer);
+  },
+
+  endDrag: function(event) {
+    if(this._timeout) {
+      clearTimeout(this._timeout);
+      this._timeout = null;
+    }
+    if(!this.activeDraggable) return;
+    this._lastPointer = null;
+    this.activeDraggable.endDrag(event);
+    this.activeDraggable = null;
+  },
+
+  keyPress: function(event) {
+    if(this.activeDraggable)
+      this.activeDraggable.keyPress(event);
+  },
+
+  addObserver: function(observer) {
+    this.observers.push(observer);
+    this._cacheObserverCallbacks();
+  },
+
+  removeObserver: function(element) {  // element instead of observer fixes mem leaks
+    this.observers = this.observers.reject( function(o) { return o.element==element });
+    this._cacheObserverCallbacks();
+  },
+
+  notify: function(eventName, draggable, event) {  // 'onStart', 'onEnd', 'onDrag'
+    if(this[eventName+'Count'] > 0)
+      this.observers.each( function(o) {
+        if(o[eventName]) o[eventName](eventName, draggable, event);
+      });
+    if(draggable.options[eventName]) draggable.options[eventName](draggable, event);
+  },
+
+  _cacheObserverCallbacks: function() {
+    ['onStart','onEnd','onDrag'].each( function(eventName) {
+      Draggables[eventName+'Count'] = Draggables.observers.select(
+        function(o) { return o[eventName]; }
+      ).length;
+    });
+  }
+};
+
+/*--------------------------------------------------------------------------*/
+
+var Draggable = Class.create({
+  initialize: function(element) {
+    var defaults = {
+      handle: false,
+      reverteffect: function(element, top_offset, left_offset) {
+        var dur = Math.sqrt(Math.abs(top_offset^2)+Math.abs(left_offset^2))*0.02;
+        new Effect.Move(element, { x: -left_offset, y: -top_offset, duration: dur,
+          queue: {scope:'_draggable', position:'end'}
+        });
+      },
+      endeffect: function(element) {
+        var toOpacity = Object.isNumber(element._opacity) ? element._opacity : 1.0;
+        new Effect.Opacity(element, {duration:0.2, from:0.7, to:toOpacity,
+          queue: {scope:'_draggable', position:'end'},
+          afterFinish: function(){
+            Draggable._dragging[element] = false
+          }
+        });
+      },
+      zindex: 1000,
+      revert: false,
+      quiet: false,
+      scroll: false,
+      scrollSensitivity: 20,
+      scrollSpeed: 15,
+      snap: false,  // false, or xy or [x,y] or function(x,y){ return [x,y] }
+      delay: 0
+    };
+
+    if(!arguments[1] || Object.isUndefined(arguments[1].endeffect))
+      Object.extend(defaults, {
+        starteffect: function(element) {
+          element._opacity = Element.getOpacity(element);
+          Draggable._dragging[element] = true;
+          new Effect.Opacity(element, {duration:0.2, from:element._opacity, to:0.7});
+        }
+      });
+
+    var options = Object.extend(defaults, arguments[1] || { });
+
+    this.element = $(element);
+
+    if(options.handle && Object.isString(options.handle))
+      this.handle = this.element.down('.'+options.handle, 0);
+
+    if(!this.handle) this.handle = $(options.handle);
+    if(!this.handle) this.handle = this.element;
+
+    if(options.scroll && !options.scroll.scrollTo && !options.scroll.outerHTML) {
+      options.scroll = $(options.scroll);
+      this._isScrollChild = Element.childOf(this.element, options.scroll);
+    }
+
+    Element.makePositioned(this.element); // fix IE
+
+    this.options  = options;
+    this.dragging = false;
+
+    this.eventMouseDown = this.initDrag.bindAsEventListener(this);
+    Event.observe(this.handle, "mousedown", this.eventMouseDown);
+
+    Draggables.register(this);
+  },
+
+  destroy: function() {
+    Event.stopObserving(this.handle, "mousedown", this.eventMouseDown);
+    Draggables.unregister(this);
+  },
+
+  currentDelta: function() {
+    return([
+      parseInt(Element.getStyle(this.element,'left') || '0'),
+      parseInt(Element.getStyle(this.element,'top') || '0')]);
+  },
+
+  initDrag: function(event) {
+    if(!Object.isUndefined(Draggable._dragging[this.element]) &&
+      Draggable._dragging[this.element]) return;
+    if(Event.isLeftClick(event)) {
+      // abort on form elements, fixes a Firefox issue
+      var src = Event.element(event);
+      if((tag_name = src.tagName.toUpperCase()) && (
+        tag_name=='INPUT' ||
+        tag_name=='SELECT' ||
+        tag_name=='OPTION' ||
+        tag_name=='BUTTON' ||
+        tag_name=='TEXTAREA')) return;
+
+      var pointer = [Event.pointerX(event), Event.pointerY(event)];
+      var pos     = this.element.cumulativeOffset();
+      this.offset = [0,1].map( function(i) { return (pointer[i] - pos[i]) });
+
+      Draggables.activate(this);
+      Event.stop(event);
+    }
+  },
+
+  startDrag: function(event) {
+    this.dragging = true;
+    if(!this.delta)
+      this.delta = this.currentDelta();
+
+    if(this.options.zindex) {
+      this.originalZ = parseInt(Element.getStyle(this.element,'z-index') || 0);
+      this.element.style.zIndex = this.options.zindex;
+    }
+
+    if(this.options.ghosting) {
+      this._clone = this.element.cloneNode(true);
+      this._originallyAbsolute = (this.element.getStyle('position') == 'absolute');
+      if (!this._originallyAbsolute)
+        Position.absolutize(this.element);
+      this.element.parentNode.insertBefore(this._clone, this.element);
+    }
+
+    if(this.options.scroll) {
+      if (this.options.scroll == window) {
+        var where = this._getWindowScroll(this.options.scroll);
+        this.originalScrollLeft = where.left;
+        this.originalScrollTop = where.top;
+      } else {
+        this.originalScrollLeft = this.options.scroll.scrollLeft;
+        this.originalScrollTop = this.options.scroll.scrollTop;
+      }
+    }
+
+    Draggables.notify('onStart', this, event);
+
+    if(this.options.starteffect) this.options.starteffect(this.element);
+  },
+
+  updateDrag: function(event, pointer) {
+    if(!this.dragging) this.startDrag(event);
+
+    if(!this.options.quiet){
+      Position.prepare();
+      Droppables.show(pointer, this.element);
+    }
+
+    Draggables.notify('onDrag', this, event);
+
+    this.draw(pointer);
+    if(this.options.change) this.options.change(this);
+
+    if(this.options.scroll) {
+      this.stopScrolling();
+
+      var p;
+      if (this.options.scroll == window) {
+        with(this._getWindowScroll(this.options.scroll)) { p = [ left, top, left+width, top+height ]; }
+      } else {
+        p = Position.page(this.options.scroll);
+        p[0] += this.options.scroll.scrollLeft + Position.deltaX;
+        p[1] += this.options.scroll.scrollTop + Position.deltaY;
+        p.push(p[0]+this.options.scroll.offsetWidth);
+        p.push(p[1]+this.options.scroll.offsetHeight);
+      }
+      var speed = [0,0];
+      if(pointer[0] < (p[0]+this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[0]+this.options.scrollSensitivity);
+      if(pointer[1] < (p[1]+this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[1]+this.options.scrollSensitivity);
+      if(pointer[0] > (p[2]-this.options.scrollSensitivity)) speed[0] = pointer[0]-(p[2]-this.options.scrollSensitivity);
+      if(pointer[1] > (p[3]-this.options.scrollSensitivity)) speed[1] = pointer[1]-(p[3]-this.options.scrollSensitivity);
+      this.startScrolling(speed);
+    }
+
+    // fix AppleWebKit rendering
+    if(Prototype.Browser.WebKit) window.scrollBy(0,0);
+
+    Event.stop(event);
+  },
+
+  finishDrag: function(event, success) {
+    this.dragging = false;
+
+    if(this.options.quiet){
+      Position.prepare();
+      var pointer = [Event.pointerX(event), Event.pointerY(event)];
+      Droppables.show(pointer, this.element);
+    }
+
+    if(this.options.ghosting) {
+      if (!this._originallyAbsolute)
+        Position.relativize(this.element);
+      delete this._originallyAbsolute;
+      Element.remove(this._clone);
+      this._clone = null;
+    }
+
+    var dropped = false;
+    if(success) {
+      dropped = Droppables.fire(event, this.element);
+      if (!dropped) dropped = false;
+    }
+    if(dropped && this.options.onDropped) this.options.onDropped(this.element);
+    Draggables.notify('onEnd', this, event);
+
+    var revert = this.options.revert;
+    if(revert && Object.isFunction(revert)) revert = revert(this.element);
+
+    var d = this.currentDelta();
+    if(revert && this.options.reverteffect) {
+      if (dropped == 0 || revert != 'failure')
+        this.options.reverteffect(this.element,
+          d[1]-this.delta[1], d[0]-this.delta[0]);
+    } else {
+      this.delta = d;
+    }
+
+    if(this.options.zindex)
+      this.element.style.zIndex = this.originalZ;
+
+    if(this.options.endeffect)
+      this.options.endeffect(this.element);
+
+    Draggables.deactivate(this);
+    Droppables.reset();
+  },
+
+  keyPress: function(event) {
+    if(event.keyCode!=Event.KEY_ESC) return;
+    this.finishDrag(event, false);
+    Event.stop(event);
+  },
+
+  endDrag: function(event) {
+    if(!this.dragging) return;
+    this.stopScrolling();
+    this.finishDrag(event, true);
+    Event.stop(event);
+  },
+
+  draw: function(point) {
+    var pos = this.element.cumulativeOffset();
+    if(this.options.ghosting) {
+      var r   = Position.realOffset(this.element);
+      pos[0] += r[0] - Position.deltaX; pos[1] += r[1] - Position.deltaY;
+    }
+
+    var d = this.currentDelta();
+    pos[0] -= d[0]; pos[1] -= d[1];
+
+    if(this.options.scroll && (this.options.scroll != window && this._isScrollChild)) {
+      pos[0] -= this.options.scroll.scrollLeft-this.originalScrollLeft;
+      pos[1] -= this.options.scroll.scrollTop-this.originalScrollTop;
+    }
+
+    var p = [0,1].map(function(i){
+      return (point[i]-pos[i]-this.offset[i])
+    }.bind(this));
+
+    if(this.options.snap) {
+      if(Object.isFunction(this.options.snap)) {
+        p = this.options.snap(p[0],p[1],this);
+      } else {
+      if(Object.isArray(this.options.snap)) {
+        p = p.map( function(v, i) {
+          return (v/this.options.snap[i]).round()*this.options.snap[i] }.bind(this));
+      } else {
+        p = p.map( function(v) {
+          return (v/this.options.snap).round()*this.options.snap }.bind(this));
+      }
+    }}
+
+    var style = this.element.style;
+    if((!this.options.constraint) || (this.options.constraint=='horizontal'))
+      style.left = p[0] + "px";
+    if((!this.options.constraint) || (this.options.constraint=='vertical'))
+      style.top  = p[1] + "px";
+
+    if(style.visibility=="hidden") style.visibility = ""; // fix gecko rendering
+  },
+
+  stopScrolling: function() {
+    if(this.scrollInterval) {
+      clearInterval(this.scrollInterval);
+      this.scrollInterval = null;
+      Draggables._lastScrollPointer = null;
+    }
+  },
+
+  startScrolling: function(speed) {
+    if(!(speed[0] || speed[1])) return;
+    this.scrollSpeed = [speed[0]*this.options.scrollSpeed,speed[1]*this.options.scrollSpeed];
+    this.lastScrolled = new Date();
+    this.scrollInterval = setInterval(this.scroll.bind(this), 10);
+  },
+
+  scroll: function() {
+    var current = new Date();
+    var delta = current - this.lastScrolled;
+    this.lastScrolled = current;
+    if(this.options.scroll == window) {
+      with (this._getWindowScroll(this.options.scroll)) {
+        if (this.scrollSpeed[0] || this.scrollSpeed[1]) {
+          var d = delta / 1000;
+          this.options.scroll.scrollTo( left + d*this.scrollSpeed[0], top + d*this.scrollSpeed[1] );
+        }
+      }
+    } else {
+      this.options.scroll.scrollLeft += this.scrollSpeed[0] * delta / 1000;
+      this.options.scroll.scrollTop  += this.scrollSpeed[1] * delta / 1000;
+    }
+
+    Position.prepare();
+    Droppables.show(Draggables._lastPointer, this.element);
+    Draggables.notify('onDrag', this);
+    if (this._isScrollChild) {
+      Draggables._lastScrollPointer = Draggables._lastScrollPointer || $A(Draggables._lastPointer);
+      Draggables._lastScrollPointer[0] += this.scrollSpeed[0] * delta / 1000;
+      Draggables._lastScrollPointer[1] += this.scrollSpeed[1] * delta / 1000;
+      if (Draggables._lastScrollPointer[0] < 0)
+        Draggables._lastScrollPointer[0] = 0;
+      if (Draggables._lastScrollPointer[1] < 0)
+        Draggables._lastScrollPointer[1] = 0;
+      this.draw(Draggables._lastScrollPointer);
+    }
+
+    if(this.options.change) this.options.change(this);
+  },
+
+  _getWindowScroll: function(w) {
+    var T, L, W, H;
+    with (w.document) {
+      if (w.document.documentElement && documentElement.scrollTop) {
+        T = documentElement.scrollTop;
+        L = documentElement.scrollLeft;
+      } else if (w.document.body) {
+        T = body.scrollTop;
+        L = body.scrollLeft;
+      }
+      if (w.innerWidth) {
+        W = w.innerWidth;
+        H = w.innerHeight;
+      } else if (w.document.documentElement && documentElement.clientWidth) {
+        W = documentElement.clientWidth;
+        H = documentElement.clientHeight;
+      } else {
+        W = body.offsetWidth;
+        H = body.offsetHeight;
+      }
+    }
+    return { top: T, left: L, width: W, height: H };
+  }
+});
+
+Draggable._dragging = { };
+
+/*--------------------------------------------------------------------------*/
+
+var SortableObserver = Class.create({
+  initialize: function(element, observer) {
+    this.element   = $(element);
+    this.observer  = observer;
+    this.lastValue = Sortable.serialize(this.element);
+  },
+
+  onStart: function() {
+    this.lastValue = Sortable.serialize(this.element);
+  },
+
+  onEnd: function() {
+    Sortable.unmark();
+    if(this.lastValue != Sortable.serialize(this.element))
+      this.observer(this.element)
+  }
+});
+
+var Sortable = {
+  SERIALIZE_RULE: /^[^_\-](?:[A-Za-z0-9\-\_]*)[_](.*)$/,
+
+  sortables: { },
+
+  _findRootElement: function(element) {
+    while (element.tagName.toUpperCase() != "BODY") {
+      if(element.id && Sortable.sortables[element.id]) return element;
+      element = element.parentNode;
+    }
+  },
+
+  options: function(element) {
+    element = Sortable._findRootElement($(element));
+    if(!element) return;
+    return Sortable.sortables[element.id];
+  },
+
+  destroy: function(element){
+    element = $(element);
+    var s = Sortable.sortables[element.id];
+
+    if(s) {
+      Draggables.removeObserver(s.element);
+      s.droppables.each(function(d){ Droppables.remove(d) });
+      s.draggables.invoke('destroy');
+
+      delete Sortable.sortables[s.element.id];
+    }
+  },
+
+  create: function(element) {
+    element = $(element);
+    var options = Object.extend({
+      element:     element,
+      tag:         'li',       // assumes li children, override with tag: 'tagname'
+      dropOnEmpty: false,
+      tree:        false,
+      treeTag:     'ul',
+      overlap:     'vertical', // one of 'vertical', 'horizontal'
+      constraint:  'vertical', // one of 'vertical', 'horizontal', false
+      containment: element,    // also takes array of elements (or id's); or false
+      handle:      false,      // or a CSS class
+      only:        false,
+      delay:       0,
+      hoverclass:  null,
+      ghosting:    false,
+      quiet:       false,
+      scroll:      false,
+      scrollSensitivity: 20,
+      scrollSpeed: 15,
+      format:      this.SERIALIZE_RULE,
+
+      // these take arrays of elements or ids and can be
+      // used for better initialization performance
+      elements:    false,
+      handles:     false,
+
+      onChange:    Prototype.emptyFunction,
+      onUpdate:    Prototype.emptyFunction
+    }, arguments[1] || { });
+
+    // clear any old sortable with same element
+    this.destroy(element);
+
+    // build options for the draggables
+    var options_for_draggable = {
+      revert:      true,
+      quiet:       options.quiet,
+      scroll:      options.scroll,
+      scrollSpeed: options.scrollSpeed,
+      scrollSensitivity: options.scrollSensitivity,
+      delay:       options.delay,
+      ghosting:    options.ghosting,
+      constraint:  options.constraint,
+      handle:      options.handle };
+
+    if(options.starteffect)
+      options_for_draggable.starteffect = options.starteffect;
+
+    if(options.reverteffect)
+      options_for_draggable.reverteffect = options.reverteffect;
+    else
+      if(options.ghosting) options_for_draggable.reverteffect = function(element) {
+        element.style.top  = 0;
+        element.style.left = 0;
+      };
+
+    if(options.endeffect)
+      options_for_draggable.endeffect = options.endeffect;
+
+    if(options.zindex)
+      options_for_draggable.zindex = options.zindex;
+
+    // build options for the droppables
+    var options_for_droppable = {
+      overlap:     options.overlap,
+      containment: options.containment,
+      tree:        options.tree,
+      hoverclass:  options.hoverclass,
+      onHover:     Sortable.onHover
+    };
+
+    var options_for_tree = {
+      onHover:      Sortable.onEmptyHover,
+      overlap:      options.overlap,
+      containment:  options.containment,
+      hoverclass:   options.hoverclass
+    };
+
+    // fix for gecko engine
+    Element.cleanWhitespace(element);
+
+    options.draggables = [];
+    options.droppables = [];
+
+    // drop on empty handling
+    if(options.dropOnEmpty || options.tree) {
+      Droppables.add(element, options_for_tree);
+      options.droppables.push(element);
+    }
+
+    (options.elements || this.findElements(element, options) || []).each( function(e,i) {
+      var handle = options.handles ? $(options.handles[i]) :
+        (options.handle ? $(e).select('.' + options.handle)[0] : e);
+      options.draggables.push(
+        new Draggable(e, Object.extend(options_for_draggable, { handle: handle })));
+      Droppables.add(e, options_for_droppable);
+      if(options.tree) e.treeNode = element;
+      options.droppables.push(e);
+    });
+
+    if(options.tree) {
+      (Sortable.findTreeElements(element, options) || []).each( function(e) {
+        Droppables.add(e, options_for_tree);
+        e.treeNode = element;
+        options.droppables.push(e);
+      });
+    }
+
+    // keep reference
+    this.sortables[element.identify()] = options;
+
+    // for onupdate
+    Draggables.addObserver(new SortableObserver(element, options.onUpdate));
+
+  },
+
+  // return all suitable-for-sortable elements in a guaranteed order
+  findElements: function(element, options) {
+    return Element.findChildren(
+      element, options.only, options.tree ? true : false, options.tag);
+  },
+
+  findTreeElements: function(element, options) {
+    return Element.findChildren(
+      element, options.only, options.tree ? true : false, options.treeTag);
+  },
+
+  onHover: function(element, dropon, overlap) {
+    if(Element.isParent(dropon, element)) return;
+
+    if(overlap > .33 && overlap < .66 && Sortable.options(dropon).tree) {
+      return;
+    } else if(overlap>0.5) {
+      Sortable.mark(dropon, 'before');
+      if(dropon.previousSibling != element) {
+        var oldParentNode = element.parentNode;
+        element.style.visibility = "hidden"; // fix gecko rendering
+        dropon.parentNode.insertBefore(element, dropon);
+        if(dropon.parentNode!=oldParentNode)
+          Sortable.options(oldParentNode).onChange(element);
+        Sortable.options(dropon.parentNode).onChange(element);
+      }
+    } else {
+      Sortable.mark(dropon, 'after');
+      var nextElement = dropon.nextSibling || null;
+      if(nextElement != element) {
+        var oldParentNode = element.parentNode;
+        element.style.visibility = "hidden"; // fix gecko rendering
+        dropon.parentNode.insertBefore(element, nextElement);
+        if(dropon.parentNode!=oldParentNode)
+          Sortable.options(oldParentNode).onChange(element);
+        Sortable.options(dropon.parentNode).onChange(element);
+      }
+    }
+  },
+
+  onEmptyHover: function(element, dropon, overlap) {
+    var oldParentNode = element.parentNode;
+    var droponOptions = Sortable.options(dropon);
+
+    if(!Element.isParent(dropon, element)) {
+      var index;
+
+      var children = Sortable.findElements(dropon, {tag: droponOptions.tag, only: droponOptions.only});
+      var child = null;
+
+      if(children) {
+        var offset = Element.offsetSize(dropon, droponOptions.overlap) * (1.0 - overlap);
+
+        for (index = 0; index < children.length; index += 1) {
+          if (offset - Element.offsetSize (children[index], droponOptions.overlap) >= 0) {
+            offset -= Element.offsetSize (children[index], droponOptions.overlap);
+          } else if (offset - (Element.offsetSize (children[index], droponOptions.overlap) / 2) >= 0) {
+            child = index + 1 < children.length ? children[index + 1] : null;
+            break;
+          } else {
+            child = children[index];
+            break;
+          }
+        }
+      }
+
+      dropon.insertBefore(element, child);
+
+      Sortable.options(oldParentNode).onChange(element);
+      droponOptions.onChange(element);
+    }
+  },
+
+  unmark: function() {
+    if(Sortable._marker) Sortable._marker.hide();
+  },
+
+  mark: function(dropon, position) {
+    // mark on ghosting only
+    var sortable = Sortable.options(dropon.parentNode);
+    if(sortable && !sortable.ghosting) return;
+
+    if(!Sortable._marker) {
+      Sortable._marker =
+        ($('dropmarker') || Element.extend(document.createElement('DIV'))).
+          hide().addClassName('dropmarker').setStyle({position:'absolute'});
+      document.getElementsByTagName("body").item(0).appendChild(Sortable._marker);
+    }
+    var offsets = dropon.cumulativeOffset();
+    Sortable._marker.setStyle({left: offsets[0]+'px', top: offsets[1] + 'px'});
+
+    if(position=='after')
+      if(sortable.overlap == 'horizontal')
+        Sortable._marker.setStyle({left: (offsets[0]+dropon.clientWidth) + 'px'});
+      else
+        Sortable._marker.setStyle({top: (offsets[1]+dropon.clientHeight) + 'px'});
+
+    Sortable._marker.show();
+  },
+
+  _tree: function(element, options, parent) {
+    var children = Sortable.findElements(element, options) || [];
+
+    for (var i = 0; i < children.length; ++i) {
+      var match = children[i].id.match(options.format);
+
+      if (!match) continue;
+
+      var child = {
+        id: encodeURIComponent(match ? match[1] : null),
+        element: element,
+        parent: parent,
+        children: [],
+        position: parent.children.length,
+        container: $(children[i]).down(options.treeTag)
+      };
+
+      /* Get the element containing the children and recurse over it */
+      if (child.container)
+        this._tree(child.container, options, child);
+
+      parent.children.push (child);
+    }
+
+    return parent;
+  },
+
+  tree: function(element) {
+    element = $(element);
+    var sortableOptions = this.options(element);
+    var options = Object.extend({
+      tag: sortableOptions.tag,
+      treeTag: sortableOptions.treeTag,
+      only: sortableOptions.only,
+      name: element.id,
+      format: sortableOptions.format
+    }, arguments[1] || { });
+
+    var root = {
+      id: null,
+      parent: null,
+      children: [],
+      container: element,
+      position: 0
+    };
+
+    return Sortable._tree(element, options, root);
+  },
+
+  /* Construct a [i] index for a particular node */
+  _constructIndex: function(node) {
+    var index = '';
+    do {
+      if (node.id) index = '[' + node.position + ']' + index;
+    } while ((node = node.parent) != null);
+    return index;
+  },
+
+  sequence: function(element) {
+    element = $(element);
+    var options = Object.extend(this.options(element), arguments[1] || { });
+
+    return $(this.findElements(element, options) || []).map( function(item) {
+      return item.id.match(options.format) ? item.id.match(options.format)[1] : '';
+    });
+  },
+
+  setSequence: function(element, new_sequence) {
+    element = $(element);
+    var options = Object.extend(this.options(element), arguments[2] || { });
+
+    var nodeMap = { };
+    this.findElements(element, options).each( function(n) {
+        if (n.id.match(options.format))
+            nodeMap[n.id.match(options.format)[1]] = [n, n.parentNode];
+        n.parentNode.removeChild(n);
+    });
+
+    new_sequence.each(function(ident) {
+      var n = nodeMap[ident];
+      if (n) {
+        n[1].appendChild(n[0]);
+        delete nodeMap[ident];
+      }
+    });
+  },
+
+  serialize: function(element) {
+    element = $(element);
+    var options = Object.extend(Sortable.options(element), arguments[1] || { });
+    var name = encodeURIComponent(
+      (arguments[1] && arguments[1].name) ? arguments[1].name : element.id);
+
+    if (options.tree) {
+      return Sortable.tree(element, arguments[1]).children.map( function (item) {
+        return [name + Sortable._constructIndex(item) + "[id]=" +
+                encodeURIComponent(item.id)].concat(item.children.map(arguments.callee));
+      }).flatten().join('&');
+    } else {
+      return Sortable.sequence(element, arguments[1]).map( function(item) {
+        return name + "[]=" + encodeURIComponent(item);
+      }).join('&');
+    }
+  }
+};
+
+// Returns true if child is contained within element
+Element.isParent = function(child, element) {
+  if (!child.parentNode || child == element) return false;
+  if (child.parentNode == element) return true;
+  return Element.isParent(child.parentNode, element);
+};
+
+Element.findChildren = function(element, only, recursive, tagName) {
+  if(!element.hasChildNodes()) return null;
+  tagName = tagName.toUpperCase();
+  if(only) only = [only].flatten();
+  var elements = [];
+  $A(element.childNodes).each( function(e) {
+    if(e.tagName && e.tagName.toUpperCase()==tagName &&
+      (!only || (Element.classNames(e).detect(function(v) { return only.include(v) }))))
+        elements.push(e);
+    if(recursive) {
+      var grandchildren = Element.findChildren(e, only, recursive, tagName);
+      if(grandchildren) elements.push(grandchildren);
+    }
+  });
+
+  return (elements.length>0 ? elements.flatten() : []);
+};
+
+Element.offsetSize = function (element, type) {
+  return element['offset' + ((type=='vertical' || type=='height') ? 'Height' : 'Width')];
+};

vendor/impressionist/test_app/public/javascripts/rails.js

@@ -0,0 +1,175 @@
+(function() {
+  // Technique from Juriy Zaytsev
+  // http://thinkweb2.com/projects/prototype/detecting-event-support-without-browser-sniffing/
+  function isEventSupported(eventName) {
+    var el = document.createElement('div');
+    eventName = 'on' + eventName;
+    var isSupported = (eventName in el);
+    if (!isSupported) {
+      el.setAttribute(eventName, 'return;');
+      isSupported = typeof el[eventName] == 'function';
+    }
+    el = null;
+    return isSupported;
+  }
+
+  function isForm(element) {
+    return Object.isElement(element) && element.nodeName.toUpperCase() == 'FORM'
+  }
+
+  function isInput(element) {
+    if (Object.isElement(element)) {
+      var name = element.nodeName.toUpperCase()
+      return name == 'INPUT' || name == 'SELECT' || name == 'TEXTAREA'
+    }
+    else return false
+  }
+
+  var submitBubbles = isEventSupported('submit'),
+      changeBubbles = isEventSupported('change')
+
+  if (!submitBubbles || !changeBubbles) {
+    // augment the Event.Handler class to observe custom events when needed
+    Event.Handler.prototype.initialize = Event.Handler.prototype.initialize.wrap(
+      function(init, element, eventName, selector, callback) {
+        init(element, eventName, selector, callback)
+        // is the handler being attached to an element that doesn't support this event?
+        if ( (!submitBubbles && this.eventName == 'submit' && !isForm(this.element)) ||
+             (!changeBubbles && this.eventName == 'change' && !isInput(this.element)) ) {
+          // "submit" => "emulated:submit"
+          this.eventName = 'emulated:' + this.eventName
+        }
+      }
+    )
+  }
+
+  if (!submitBubbles) {
+    // discover forms on the page by observing focus events which always bubble
+    document.on('focusin', 'form', function(focusEvent, form) {
+      // special handler for the real "submit" event (one-time operation)
+      if (!form.retrieve('emulated:submit')) {
+        form.on('submit', function(submitEvent) {
+          var emulated = form.fire('emulated:submit', submitEvent, true)
+          // if custom event received preventDefault, cancel the real one too
+          if (emulated.returnValue === false) submitEvent.preventDefault()
+        })
+        form.store('emulated:submit', true)
+      }
+    })
+  }
+
+  if (!changeBubbles) {
+    // discover form inputs on the page
+    document.on('focusin', 'input, select, texarea', function(focusEvent, input) {
+      // special handler for real "change" events
+      if (!input.retrieve('emulated:change')) {
+        input.on('change', function(changeEvent) {
+          input.fire('emulated:change', changeEvent, true)
+        })
+        input.store('emulated:change', true)
+      }
+    })
+  }
+
+  function handleRemote(element) {
+    var method, url, params;
+
+    var event = element.fire("ajax:before");
+    if (event.stopped) return false;
+
+    if (element.tagName.toLowerCase() === 'form') {
+      method = element.readAttribute('method') || 'post';
+      url    = element.readAttribute('action');
+      params = element.serialize();
+    } else {
+      method = element.readAttribute('data-method') || 'get';
+      url    = element.readAttribute('href');
+      params = {};
+    }
+
+    new Ajax.Request(url, {
+      method: method,
+      parameters: params,
+      evalScripts: true,
+
+      onComplete:    function(request) { element.fire("ajax:complete", request); },
+      onSuccess:     function(request) { element.fire("ajax:success",  request); },
+      onFailure:     function(request) { element.fire("ajax:failure",  request); }
+    });
+
+    element.fire("ajax:after");
+  }
+
+  function handleMethod(element) {
+    var method = element.readAttribute('data-method'),
+        url = element.readAttribute('href'),
+        csrf_param = $$('meta[name=csrf-param]')[0],
+        csrf_token = $$('meta[name=csrf-token]')[0];
+
+    var form = new Element('form', { method: "POST", action: url, style: "display: none;" });
+    element.parentNode.insert(form);
+
+    if (method !== 'post') {
+      var field = new Element('input', { type: 'hidden', name: '_method', value: method });
+      form.insert(field);
+    }
+
+    if (csrf_param) {
+      var param = csrf_param.readAttribute('content'),
+          token = csrf_token.readAttribute('content'),
+          field = new Element('input', { type: 'hidden', name: param, value: token });
+      form.insert(field);
+    }
+
+    form.submit();
+  }
+
+
+  document.on("click", "*[data-confirm]", function(event, element) {
+    var message = element.readAttribute('data-confirm');
+    if (!confirm(message)) event.stop();
+  });
+
+  document.on("click", "a[data-remote]", function(event, element) {
+    if (event.stopped) return;
+    handleRemote(element);
+    event.stop();
+  });
+
+  document.on("click", "a[data-method]", function(event, element) {
+    if (event.stopped) return;
+    handleMethod(element);
+    event.stop();
+  });
+
+  document.on("submit", function(event) {
+    var element = event.findElement(),
+        message = element.readAttribute('data-confirm');
+    if (message && !confirm(message)) {
+      event.stop();
+      return false;
+    }
+
+    var inputs = element.select("input[type=submit][data-disable-with]");
+    inputs.each(function(input) {
+      input.disabled = true;
+      input.writeAttribute('data-original-value', input.value);
+      input.value = input.readAttribute('data-disable-with');
+    });
+
+    var element = event.findElement("form[data-remote]");
+    if (element) {
+      handleRemote(element);
+      event.stop();
+    }
+  });
+
+  document.on("ajax:after", "form", function(event, element) {
+    var inputs = element.select("input[type=submit][disabled=true][data-disable-with]");
+    inputs.each(function(input) {
+      input.value = input.readAttribute('data-original-value');
+      input.removeAttribute('data-original-value');
+      input.disabled = false;
+    });
+  });
+})();