Fix wrap_layout for all know templating engines. Fixes #417

middleman-core/lib/middleman-core/core_extensions/rendering.rb

@@ -329,19 +329,29 @@ module Middleman
         def wrap_layout(layout_name, &block)
           # Save current buffer for later
           @_out_buf, _buf_was = "", @_out_buf
+            
           begin
-            content = capture(&block) if block_given?
+            content = if block_given?
+              capture_html(&block)
+            else
+              ""
+            end
           ensure
             # Reset stored buffer
             @_out_buf = _buf_was
           end
+          
           layout_path = locate_layout(layout_name, current_engine)
           
-          if !@_out_buf
-            raise "wrap_layout is currently broken for this templating system"
-          end
+          extension = File.extname(layout_path)
+          engine = extension[1..-1].to_sym
           
-          @_out_buf.concat render_individual_file(layout_path, @current_locs || {}, @current_opts || {}, self) { content }
+          # Store last engine for later (could be inside nested renders)
+          @current_engine, engine_was = engine, @current_engine
+          
+          concat_content render_individual_file(layout_path, @current_locs || {}, @current_opts || {}, self) { content }
+        ensure
+          @current_engine = engine_was
         end
     
         # The currently rendering engine

middleman-more/features/nested_layouts.feature

@@ -13,13 +13,24 @@ Feature: Allow nesting of layouts
     And I should see "Inner"
     And I should see "Outer"
     And I should see "Master"
-    When I go to "/haml-test.html"
+    
+  Scenario: A page uses an inner layout when uses an outer layout (slim)
+    Given the Server is running at "nested-layout-app"
+    When I go to "/slim-test.html"
     And I should see "New Article Title"
     And I should see "The Article Content"
     And I should see "Inner"
     And I should see "Outer"
     And I should see "Master"
     
+  Scenario: A page uses an inner layout when uses an outer layout (haml)
+    Given the Server is running at "nested-layout-app"
+    When I go to "/haml-test.html"
+    And I should see "New Article Title"
+    And I should see "The Article Content"
+    And I should see "Inner"
+    And I should see "Outer"
+    And I should see "Master"
 
   Scenario: YAML Front Matter isn't clobbered with nested layouts
     Given the Server is running at "nested-layout-app"

middleman-more/fixtures/nested-layout-app/source/another.html.markdown

@@ -0,0 +1,7 @@
+--- 
+title: "New Article Title"
+date: 2011-01-01
+layout: inner
+---
+
+The Article Content

middleman-more/fixtures/nested-layout-app/source/haml-test.html.markdown

@@ -0,0 +1,7 @@
+--- 
+title: "New Article Title"
+date: 2011-01-01
+layout: inner_haml
+---
+
+The Article Content

middleman-more/fixtures/nested-layout-app/source/layouts/inner_haml.haml

@@ -0,0 +1,3 @@
+- wrap_layout :outer_haml do
+  Inner
+  = yield

middleman-more/fixtures/nested-layout-app/source/layouts/inner_slim.slim

@@ -0,0 +1,3 @@
+- wrap_layout :outer_slim do
+  Inner
+  = yield

middleman-more/fixtures/nested-layout-app/source/layouts/master_haml.haml

@@ -0,0 +1,3 @@
+Master
+= data.page.title
+= yield

middleman-more/fixtures/nested-layout-app/source/layouts/master_slim.slim

@@ -0,0 +1,3 @@
+Master
+= data.page.title
+= yield

middleman-more/fixtures/nested-layout-app/source/layouts/outer_haml.haml

@@ -0,0 +1,3 @@
+- wrap_layout :master_haml do
+  Outer
+  = yield

middleman-more/fixtures/nested-layout-app/source/layouts/outer_slim.slim

@@ -0,0 +1,3 @@
+- wrap_layout :master_slim do
+  Outer
+  = yield

middleman-more/fixtures/nested-layout-app/source/slim-test.html.markdown

@@ -0,0 +1,7 @@
+--- 
+title: "New Article Title"
+date: 2011-01-01
+layout: inner_slim
+---
+
+The Article Content