Squashed commit of the following:

commit 25c5f1e
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Sat May 28 02:06:34 2016 -0400

    tests passing using rake, react.js sources available, nice error displayed if react.js not available

commit 2b544fc
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Sat May 28 00:10:56 2016 -0400

    all tests passing for react v13-v15

commit bda67e8
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Thu May 26 07:44:17 2016 -0400

    wip

commit 30e14c7
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Wed May 25 21:04:20 2016 -0400

    removed require js

commit 52e52b5
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Thu May 19 12:49:04 2016 -0400

    bump to next version

commit de5d685
Author: Mitch VanDuyn <mitch@catprint.com>
Date:   Thu May 19 12:47:11 2016 -0400

    closes #142 closes #143

Author: zetachang

config.ru

@@ -2,14 +2,15 @@ require 'bundler'
 Bundler.require
 
 require "opal-rspec"
-require "react/source"
+require "opal-jquery"
+#require "react/source"
 
 Opal.append_path File.expand_path('../spec', __FILE__)
 
 run Opal::Server.new { |s|
   s.main = 'opal/rspec/sprockets_runner'
   s.append_path 'spec'
-  s.append_path File.dirname(::React::Source.bundled_path_for("react-with-addons.js"))
+  #s.append_path File.dirname(::React::Source.bundled_path_for("react-with-addons.js"))
   s.debug = true
-  s.index_path = 'spec/reactjs/index.html.erb'
+  s.index_path = 'spec/index.html.erb'
 }

lib/generators/reactive_ruby/test_app/templates/assets/javascripts/components.rb

@@ -1,3 +1,4 @@
 require 'opal'
+require 'react'
 require 'reactive-ruby'
 require_tree './components'

lib/react/component/api.rb

@@ -2,10 +2,12 @@ module React
   module Component
     module API
       def dom_node
-        if `typeof React.findDOMNode === 'undefined'`
-          `#{self}.native.getDOMNode`            # v0.12.0
-        else
+        if !(`typeof ReactDOM === 'undefined' || typeof ReactDOM.findDOMNode === 'undefined'`)
+          `ReactDOM.findDOMNode(#{self}.native)` # v0.14.0
+        elsif !(`typeof React.findDOMNode === 'undefined'`)
           `React.findDOMNode(#{self}.native)`    # v0.13.0
+        else
+          `#{self}.native.getDOMNode`            # v0.12.0
         end
       end
 

lib/react/top_level.rb

@@ -63,7 +63,14 @@ def self.create_element(type, properties = {}, &block)
 
   def self.render(element, container)
     container = `container.$$class ? container[0] : container`
-    component = Native(`React.render(#{element.to_n}, container, function(){#{yield if block_given?}})`)
+    if !(`typeof ReactDOM === 'undefined'`)
+      component = Native(`ReactDOM.render(#{element.to_n}, container, function(){#{yield if block_given?}})`) # v0.15+
+    elsif !(`typeof React.renderToString === 'undefined'`)
+      component = Native(`React.render(#{element.to_n}, container, function(){#{yield if block_given?}})`)
+    else
+      raise "render is not defined.  In React >= v15 you must import it with ReactDOM"
+    end
+
     component.class.include(React::Component::API)
     component
   end
@@ -73,22 +80,51 @@ def self.is_valid_element(element)
   end
 
   def self.render_to_string(element)
-    React::RenderingContext.build { `React.renderToString(#{element.to_n})` }
+    if !(`typeof ReactDOMServer === 'undefined'`)
+      React::RenderingContext.build { `ReactDOMServer.renderToString(#{element.to_n})` } # v0.15+
+    elsif !(`typeof React.renderToString === 'undefined'`)
+      React::RenderingContext.build { `React.renderToString(#{element.to_n})` }
+    else
+      raise "renderToString is not defined.  In React >= v15 you must import it with ReactDOMServer"
+    end
   end
 
   def self.render_to_static_markup(element)
-    React::RenderingContext.build { `React.renderToStaticMarkup(#{element.to_n})` }
+    if !(`typeof ReactDOMServer === 'undefined'`)
+      React::RenderingContext.build { `ReactDOMServer.renderToStaticMarkup(#{element.to_n})` } # v0.15+
+    elsif !(`typeof React.renderToString === 'undefined'`)
+      React::RenderingContext.build { `React.renderToStaticMarkup(#{element.to_n})` }
+    else
+      raise "renderToStaticMarkup is not defined.  In React >= v15 you must import it with ReactDOMServer"
+    end
   end
 
   def self.unmount_component_at_node(node)
-    `React.unmountComponentAtNode(node.$$class ? node[0] : node)`
+    if !(`typeof ReactDOM === 'undefined'`)
+      `ReactDOM.unmountComponentAtNode(node.$$class ? node[0] : node)` # v0.15+
+    elsif !(`typeof React.renderToString === 'undefined'`)
+      `React.unmountComponentAtNode(node.$$class ? node[0] : node)`
+    else
+      raise "unmountComponentAtNode is not defined.  In React >= v15 you must import it with ReactDOM"
+    end
   end
 
 end
 
 Element.instance_eval do
+
   class ::Element::DummyContext < React::Component::Base
   end
+
+  def self.find(selector)
+    selector = selector.dom_node if selector.respond_to? :dom_node rescue selector
+    `$(#{selector})`
+  end
+
+  def self.[](selector)
+    find(selector)
+  end
+
   def render(&block)
     React.render(React::RenderingContext.render(nil) {::Element::DummyContext.new.instance_eval &block}, self)
   end

lib/reactive-ruby.rb

@@ -1,5 +1,23 @@
+
+
 if RUBY_ENGINE == 'opal'
-  require 'sources/react.js'
+  if `window.React === undefined || window.React.version === undefined`
+    raise [
+      "No React.js Available",
+      "",
+      "React.js must be defined before requiring 'reactive-ruby'",
+      "'reactive-ruby' has been tested with react v13, v14, and v15.",
+      "",
+      "IF USING 'react-rails':",
+      "   add 'require \"react\"' immediately before the 'require \"reactive-ruby\" directive in 'views/components.rb'.",
+      "IF USING WEBPACK:",
+      "   add 'react' to your webpack manifest.",
+      "OTHERWISE TO GET THE LATEST TESTED VERSION",
+      "   add 'require \"react-latest\"' immediately before the require of 'reactive-ruby',",
+      "OR TO USE A SPECIFIC VERSION",
+      "   add 'require \"react-v1x\"' immediately before the require of 'reactive-ruby'."
+    ].join("\n")
+  end
   require 'react/top_level'
   require 'react/observable'
   require 'react/component'
@@ -13,14 +31,20 @@
   require 'reactive-ruby/isomorphic_helpers'
   require 'rails-helpers/top_level_rails_component'
   require 'reactive-ruby/version'
+
 else
   require 'opal'
   require 'opal-browser'
+  begin
+    require 'opal-jquery'
+  rescue LoadError
+  end
   require 'opal-activesupport'
   require 'reactive-ruby/version'
   require 'reactive-ruby/rails' if defined?(Rails)
   require 'reactive-ruby/isomorphic_helpers'
   require 'reactive-ruby/serializers'
 
   Opal.append_path File.expand_path('../', __FILE__).untaint
+  Opal.append_path File.expand_path('../sources/', __FILE__).untaint
 end