Add tests for Slim inline filters. Refactor similar feature in Haml filters. Closes #1542

middleman-core/features/markdown_kramdown_in_slim.feature

@@ -0,0 +1,42 @@
+Feature: Markdown support in Slim (Kramdown)
+  In order to test support of the Slim markdown filter
+
+  Scenario: Markdown filter in Slim works (with Kramdown)
+    Given a fixture app "markdown-in-slim-app"
+    And a file named "config.rb" with:
+      """
+      set :markdown_engine, :kramdown
+      activate :directory_indexes
+      """
+    And a file named "source/markdown_filter.html.slim" with:
+      """
+      markdown:
+        # H1
+
+        paragraph
+      """
+    Given the Server is running at "markdown-in-slim-app"
+    When I go to "/markdown_filter/"
+    Then I should see ">H1</h1>"
+    Then I should see "<p>paragraph</p>"
+
+
+  Scenario: Markdown filter in Slim uses our link_to and image_tag helpers (with Kramdown)
+    Given a fixture app "markdown-in-slim-app"
+    And a file named "config.rb" with:
+      """
+      set :markdown_engine, :kramdown
+      activate :directory_indexes
+      """
+    And a file named "source/link_and_image.html.slim" with:
+      """
+      markdown:
+        [A link](/link_target.html)
+
+        ![image](blank.gif){: srcset="image_2x.jpg 2x"}
+      """
+    Given the Server is running at "markdown-in-slim-app"
+    When I go to "/link_and_image/"
+    Then I should see "/link_target/"
+    Then I should see "/images/image_2x.jpg 2x"
+    Then I should see 'src="/images/blank.gif"'

middleman-core/fixtures/markdown-in-slim-app/source/link_target.html.markdown

@@ -0,0 +1,4 @@
+---
+layout: false
+---
+Hello World

middleman-core/lib/middleman-core/file_renderer.rb

@@ -53,6 +53,7 @@ module Middleman
       extension = File.extname(path)
       options = opts.merge(options_for_ext(extension))
       options[:outvar] ||= '@_out_buf'
+      options[:context] = context
       options.delete(:layout)
 
       # Overwrite with frontmatter options
@@ -66,9 +67,10 @@ module Middleman
       end
 
       # Read compiled template from disk or cache
-      template = cache.fetch(:compiled_template, extension, options, body) do
+      template = ::Tilt.new(path, 1, options) { body }
-        ::Tilt.new(path, 1, options) { body }
+      # template = cache.fetch(:compiled_template, extension, options, body) do
-      end
+      #   ::Tilt.new(path, 1, options) { body }
+      # end
 
       # Render using Tilt
       content = ::Middleman::Util.instrument 'render.tilt', path: path do

middleman-core/lib/middleman-core/renderers/haml.rb

@@ -20,29 +20,45 @@ module Middleman
     # thus making it impossible to pass our Middleman instance
     # in. So we have to resort to heavy hackery :(
     class HamlTemplate < ::Tilt::HamlTemplate
+      def initialize(*args, &block)
+        super
+
+        @context = @options[:context] if @options.key?(:context)
+      end
+
       def prepare
       end
 
       def evaluate(scope, locals, &block)
-        ::Middleman::Renderers::Haml.last_haml_scope = scope
+        options = @options.merge(filename: eval_file, line: line, context: @context || scope)
-
-        options = @options.merge(filename: eval_file, line: line)
         @engine = ::Haml::Engine.new(data, options)
         output = @engine.render(scope, locals, &block)
 
-        ::Middleman::Renderers::Haml.last_haml_scope = nil
-
         output
       end
     end
 
     # Haml Renderer
     class Haml < ::Middleman::Extension
-      cattr_accessor :last_haml_scope
 
       def initialize(app, options={}, &block)
         super
 
+        ::Haml::Options.defaults[:context] = nil
+        ::Haml::Options.send :attr_accessor, :context
+
+        [::Haml::Filters::Sass, ::Haml::Filters::Scss, ::Haml::Filters::Markdown].each do |f|
+          f.class_exec do
+            def self.render_with_options(text, compiler_options)
+              modified_options = options.dup
+              modified_options[:context] = compiler_options[:context]
+
+              text = template_class.new(nil, 1, modified_options) {text}.render
+              super(text, compiler_options)
+            end
+          end
+        end
+
         ::Tilt.prefer(::Middleman::Renderers::HamlTemplate, :haml)
 
         # Add haml helpers to context

middleman-core/lib/middleman-core/renderers/kramdown.rb

@@ -4,10 +4,16 @@ module Middleman
   module Renderers
     # Our own Kramdown Tilt template that simply uses our custom renderer.
     class KramdownTemplate < ::Tilt::KramdownTemplate
-      def evaluate(scope, *)
+      def initialize(*args, &block)
-        @output ||= begin
+        super
-          MiddlemanKramdownHTML.scope = (defined?(::Middleman::Renderers::Haml) && ::Middleman::Renderers::Haml.last_haml_scope) ? ::Middleman::Renderers::Haml.last_haml_scope : scope
 
+        @context = @options[:context] if @options.key?(:context)
+      end
+
+      def evaluate(context, *)
+        MiddlemanKramdownHTML.scope = @context || context
+
+        @output ||= begin
           output, warnings = MiddlemanKramdownHTML.convert(@engine.root, @engine.options)
           @engine.warnings.concat(warnings)
           output
@@ -38,6 +44,7 @@ module Middleman
 
         attr = el.attr.dup
         link = attr.delete('href')
+
         scope.link_to(content, link, attr)
       end
     end

middleman-core/lib/middleman-core/renderers/redcarpet.rb

@@ -10,6 +10,12 @@ module Middleman
         escape_html: :filter_html
       }
 
+      def initialize(*args, &block)
+        super
+
+        @context = @options[:context] if @options.key?(:context)
+      end
+
       # Overwrite built-in Tilt version.
       # Don't overload :renderer option with smartypants
       # Support renderer-level options
@@ -40,11 +46,7 @@ module Middleman
 
       def evaluate(scope, _)
         @output ||= begin
-          if defined?(::Middleman::Renderers::Haml)
+          MiddlemanRedcarpetHTML.scope = @context || scope
-            MiddlemanRedcarpetHTML.scope = ::Middleman::Renderers::Haml.last_haml_scope || scope
-          else
-            MiddlemanRedcarpetHTML.scope = scope
-          end
 
           @engine.render(data)
         end

middleman-core/lib/middleman-core/renderers/sass.rb

@@ -94,11 +94,7 @@ module Middleman
         # Change Sass path, for url functions, to the build folder if we're building
         # @return [Hash]
         def sass_options
-          ctx = if defined?(::Middleman::Renderers::Haml)
+          ctx = @context
-            ::Middleman::Renderers::Haml.last_haml_scope || @context
-          else
-            @context
-          end
 
           more_opts = {
             load_paths: ctx.config[:sass_assets_paths],

middleman-core/lib/middleman-core/renderers/slim.rb

@@ -7,9 +7,24 @@ module SafeTemplate
   end
 end
 
-class Slim::Template
+class ::Slim::Template
   include SafeTemplate
 
+  def initialize(file, line, opts, &block)
+    if opts.key?(:context)
+      context_hack = {
+        context: opts[:context]
+      }
+
+      ::Slim::Embedded::SassEngine.disable_option_validator!
+      %w(sass scss markdown).each do |engine|
+        ::Slim::Embedded.options[engine.to_sym] = context_hack
+      end
+    end
+
+    super
+  end
+
   def precompiled_preamble(locals)
     "__in_slim_template = true\n" << super
   end
@@ -32,17 +47,6 @@ module Middleman
           disable_escape: true
         )
       end
-
-      def after_configuration
-        context_hack = {
-          context: app.template_context_class.new(app)
-        }
-
-        ::Slim::Embedded::SassEngine.disable_option_validator!
-        %w(sass scss markdown).each do |engine|
-          ::Slim::Embedded.options[engine.to_sym] = context_hack
-        end
-      end
     end
   end
 end