railtie.rb in react-rails-1.0.0

- old
+ new
@@ -3,34 +3,85 @@
 module React
   module Rails
     class Railtie < ::Rails::Railtie
       config.react = ActiveSupport::OrderedOptions.new
 
-      initializer "react_rails.setup_vendor", :after => "sprockets.environment", group: :all do |app|
-        variant = app.config.react.variant
+      # Sensible defaults. Can be overridden in application.rb
+      config.react.variant = (::Rails.env.production? ? :production : :development)
+      config.react.addons = false
+      config.react.jsx_transform_options = {}
+      # Server-side rendering
+      config.react.max_renderers = 10
+      config.react.timeout = 20 #seconds
+      config.react.react_js = lambda {File.read(::Rails.application.assets.resolve('react.js'))}
+      config.react.component_filenames = ['components.js']
 
+      # Watch .jsx files for changes in dev, so we can reload the JS VMs with the new JS code.
+      initializer "react_rails.add_watchable_files", group: :all do |app|
+        app.config.watchable_files.concat Dir["#{app.root}/app/assets/javascripts/**/*.jsx*"]
+      end
+
+      # Include the react-rails view helper lazily
+      initializer "react_rails.setup_view_helpers", group: :all do |app|
+        React::JSX.transform_options = app.config.react.jsx_transform_options
+        ActiveSupport.on_load(:action_view) do
+          include ::React::Rails::ViewHelper
+        end
+      end
+
+      initializer "react_rails.setup_vendor", group: :all do |app|
         # Mimic behavior of ember-rails...
         # We want to include different files in dev/prod. The unminified builds
         # contain console logging for invariants and logging to help catch
         # common mistakes. These are all stripped out in the minified build.
-        if variant = app.config.react.variant || ::Rails.env.test?
-          variant ||= :development
-          addons = app.config.react.addons || false
 
-          # Copy over the variant into a path that sprockets will pick up.
-          # We'll always copy to 'react.js' so that no includes need to change.
-          # We'll also always copy of JSXTransformer.js
-          tmp_path = app.root.join('tmp/react-rails')
-          filename = 'react' + (addons ? '-with-addons' : '') + (variant == :production ? '.min.js' : '.js')
-          FileUtils.mkdir_p(tmp_path)
-          FileUtils.cp(::React::Source.bundled_path_for(filename),
-                       tmp_path.join('react.js'))
-          FileUtils.cp(::React::Source.bundled_path_for('JSXTransformer.js'),
-                       tmp_path.join('JSXTransformer.js'))
+        # Copy over the variant into a path that sprockets will pick up.
+        # We'll always copy to 'react.js' so that no includes need to change.
+        # We'll also always copy of JSXTransformer.js
+        tmp_path = app.root.join('tmp/react-rails')
+        filename = 'react' +
+                   (app.config.react.addons ? '-with-addons' : '') +
+                   (app.config.react.variant == :production ? '.min.js' : '.js')
+        FileUtils.mkdir_p(tmp_path)
+        FileUtils.cp(::React::Source.bundled_path_for(filename),
+                     tmp_path.join('react.js'))
+        FileUtils.cp(::React::Source.bundled_path_for('JSXTransformer.js'),
+                     tmp_path.join('JSXTransformer.js'))
+        app.assets.prepend_path tmp_path
 
-          # Make sure it can be found
-          app.assets.append_path(tmp_path)
+        # Allow overriding react files that are not based on environment
+        # e.g. /vendor/assets/react/JSXTransformer.js
+        dropin_path = app.root.join("vendor/assets/react")
+        app.assets.prepend_path dropin_path if dropin_path.exist?
+
+        # Allow overriding react files that are based on environment
+        # e.g. /vendor/assets/react/development/react.js
+        dropin_path_env = app.root.join("vendor/assets/react/#{app.config.react.variant}")
+        app.assets.prepend_path dropin_path_env if dropin_path_env.exist?
+      end
+
+
+      config.after_initialize do |app|
+        # Server Rendering
+        # Concat component_filenames together for server rendering
+        app.config.react.components_js = lambda {
+          app.config.react.component_filenames.map do |filename|
+            app.assets[filename].to_s
+          end.join(";")
+        }
+
+        do_setup = lambda do
+          cfg = app.config.react
+          React::Renderer.setup!( cfg.react_js, cfg.components_js, cfg.replay_console,
+                                {:size => cfg.max_renderers, :timeout => cfg.timeout})
         end
+
+        do_setup.call
+
+        # Reload the JS VMs in dev when files change
+        ActionDispatch::Reloader.to_prepare(&do_setup)
       end
+
+
     end
   end
 end