[Issue #139] Add variable interpolation to *.js files.

lib/awestruct/handler_chains.rb

@@ -9,6 +9,7 @@
 require 'awestruct/handlers/haml_handler'
 require 'awestruct/handlers/sass_handler'
 require 'awestruct/handlers/scss_handler'
+require 'awestruct/handlers/javascript_handler'
 require 'awestruct/handlers/coffeescript_handler'
 
 module Awestruct
@@ -25,6 +26,7 @@ class HandlerChains
       Awestruct::Handlers::HamlHandler::CHAIN,
       Awestruct::Handlers::SassHandler::CHAIN,
       Awestruct::Handlers::ScssHandler::CHAIN,
+      Awestruct::Handlers::JavascriptHandler::CHAIN,
       Awestruct::Handlers::CoffeescriptHandler::CHAIN,
       HandlerChain.new( /.*/, Awestruct::Handlers::FileHandler )
     ]

lib/awestruct/handlers/javascript_handler.rb

@@ -0,0 +1,47 @@
+
+require 'awestruct/handler_chain'
+require 'awestruct/handlers/base_handler'
+require 'awestruct/handlers/file_handler'
+require 'awestruct/handlers/front_matter_handler'
+require 'awestruct/handlers/interpolation_handler'
+
+module Awestruct
+  module Handlers
+    class JavascriptHandler < BaseHandler
+
+
+      CHAIN = Awestruct::HandlerChain.new( /\.js$/,
+        Awestruct::Handlers::FileHandler,
+        Awestruct::Handlers::FrontMatterHandler,
+        Awestruct::Handlers::InterpolationHandler,
+        Awestruct::Handlers::JavascriptHandler
+      )
+
+      def initialize(site, delegate)
+        super( site, delegate )
+      end
+
+      def simple_name
+        File.basename( relative_source_path, '.js' ) 
+      end
+
+      def output_filename
+        File.basename( relative_source_path )
+      end
+
+      def output_extension
+        '.js'
+      end
+
+      def content_syntax
+        :javascript
+      end
+
+      def rendered_content(context, with_layouts=false)
+        delegate.rendered_content( context, with_layouts )
+      end
+
+    end
+  end
+end
+

spec/javascript_handler_spec.rb

@@ -0,0 +1,35 @@
+require 'awestruct/handlers/file_handler'
+require 'awestruct/handlers/javascript_handler'
+
+require 'hashery/open_cascade'
+
+describe Awestruct::Handlers::JavascriptHandler do
+
+  before :all do
+    @site = OpenCascade.new :encoding=>false, :dir=>Pathname.new( File.dirname(__FILE__) + '/test-data/handlers' ), :foo => "bacon"
+  end
+
+  def handler_file(path)
+    File.dirname( __FILE__ ) + "/test-data/handlers/#{path}"
+  end
+
+  def create_context
+    OpenCascade.new :site=>@site
+  end
+
+  it "should render a Javascript file" do
+    file_handler = Awestruct::Handlers::FileHandler.new( @site, handler_file( "javascript-page.js" ) )
+    javascript_handler = Awestruct::Handlers::JavascriptHandler.new( @site, file_handler )
+
+    rendered = javascript_handler.rendered_content( create_context )
+    rendered.should_not be_nil
+    rendered.should =~ %r(var crunchy = "bacon")
+
+  end
+
+  it "should interpolate Javascript files" do
+    Awestruct::Handlers::JavascriptHandler::CHAIN.handler_classes.include?( Awestruct::Handlers::InterpolationHandler ).should be_true
+  end
+
+end
+

spec/test-data/handlers/javascript-page.js

@@ -0,0 +1 @@
+var crunchy = "bacon"