Add custom resolver to prevent Rails from rendering Haml Coffee templ…

…ates for non-HTML formats. Fixes #80.

lib/haml_coffee_assets/action_view/resolver.rb

@@ -0,0 +1,19 @@
+require "action_view"
+
+module HamlCoffeeAssets
+  module ActionView
+    # Custom resolver to prevent Haml Coffee templates from being rendered by
+    # Rails for non-HTML formats, since a template name without a MIME type
+    # in it would normally be a fallback for all formats.
+    #
+    class Resolver < ::ActionView::FileSystemResolver
+      def find_templates(name, prefix, partial, details)
+        if details[:formats].include?(:html)
+          super
+        else
+          []
+        end
+      end
+    end
+  end
+end

lib/haml_coffee_assets/rails/engine.rb

@@ -1,5 +1,7 @@
 # coding: UTF-8
 
+require 'haml_coffee_assets/action_view/resolver'
+
 module HamlCoffeeAssets
   module Rails
 
@@ -10,11 +12,6 @@ class Engine < ::Rails::Engine
 
       config.hamlcoffee = ::HamlCoffeeAssets.config
 
-      # Add shared template path to ActionView's load path
-      config.before_configuration do |app|
-        app.paths['app/views'] << config.hamlcoffee.shared_template_path
-      end
-
       # Initialize Haml Coffee Assets after Sprockets
       #
       initializer 'sprockets.hamlcoffeeassets', :group => :all, :after => 'sprockets.environment' do |app|
@@ -25,6 +22,13 @@ class Engine < ::Rails::Engine
           ::ActionView::Template.register_template_handler(:hamlc, ::HamlCoffeeAssets::ActionView::TemplateHandler)
         end
 
+        # Add template path to ActionController's view paths.
+        ActiveSupport.on_load(:action_controller) do
+          path = ::HamlCoffeeAssets.config.shared_template_path
+          resolver = ::HamlCoffeeAssets::ActionView::Resolver.new(path)
+          ::ActionController::Base.append_view_path(resolver)
+        end
+
         next unless app.assets
 
         # Register Tilt template (for Sprockets)