From 54aada824c538c2216f897cade41253756421a5b Mon Sep 17 00:00:00 2001
From: Jacques Distler <distler@golem.ph.utexas.edu>
Date: Fri, 14 Sep 2007 10:43:03 -0500
Subject: [PATCH] Use Standard PageRenderer for S5 Content From Jason Blevins:
 use the standard PageRenderer class to render S5 content. This way, WikiWords
 (etc) are processed in S5 slideshows.

---
 app/controllers/wiki_controller.rb | 16 ++++---------
 lib/chunks/engines.rb              | 37 +++++++++++++++++++++++++-----
 lib/page_renderer.rb               | 12 ++++++++++
 lib/wiki_content.rb                |  2 +-
 4 files changed, 48 insertions(+), 19 deletions(-)

diff --git a/app/controllers/wiki_controller.rb b/app/controllers/wiki_controller.rb
index 8c71047c..39269e63 100644
--- a/app/controllers/wiki_controller.rb
+++ b/app/controllers/wiki_controller.rb
@@ -293,18 +293,10 @@ class WikiController < ApplicationController
   end
 
   def s5
-    if @web.markup == :markdownMML
-      my_content = Maruku.new(@page.content.delete("\r"),
-           {:math_enabled => true, :math_numbered => ['\\[','\\begin{equation}'], :content_only => true,
-            :author => @page.author, :title => @page.plain_name})
-      @s5_content = sanitize_xhtml(my_content.to_s5)
-      @s5_theme = my_content.s5_theme
-    elsif @web.markup == :markdown
-      my_content = Maruku.new(@page.content.delete("\r"),
-           {:math_enabled => false, :content_only => true,
-            :author => @page.author, :title => @page.plain_name})
-      @s5_content = sanitize_xhtml(my_content.to_s5)
-      @s5_theme = my_content.s5_theme
+    if @web.markup == :markdownMML || @web.markup == :markdown
+      my_rendered = PageRenderer.new(@page.revisions.last)
+      @s5_content = my_rendered.display_s5
+      @s5_theme = my_rendered.s5_theme
     else
       @s5_content = "S5 not supported with this text filter"
       @s5_theme = "default"
diff --git a/lib/chunks/engines.rb b/lib/chunks/engines.rb
index d4f583d2..5f07be45 100644
--- a/lib/chunks/engines.rb
+++ b/lib/chunks/engines.rb
@@ -42,9 +42,20 @@ module Engines
     def mask
       require 'maruku'
       require 'maruku/ext/math'
-      html = sanitize_rexml(Maruku.new(@content.delete("\r\x01-\x08\x0B\x0C\x0E-\x1F"),
-            {:math_enabled => false}).to_html_tree)
-      html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
+
+      # If the request is for S5, call Maruku accordingly (without math)
+      if @content.options[:mode] == :s5
+        my_content = Maruku.new(@content.delete("\r"), {:math_enabled => false,
+                            :content_only => true,
+                            :author => @content.options[:engine_opts][:author],
+                            :title => @content.options[:engine_opts][:title]})
+        @content.options[:renderer].s5_theme = my_content.s5_theme
+        sanitize_xhtml(my_content.to_s5)
+      else
+        sanitize_rexml(Maruku.new(@content.delete("\r"),
+                           {:math_enabled => false}).to_html_tree)
+      end
+
     end
   end
 
@@ -54,9 +65,23 @@ module Engines
     def mask
       require 'maruku'
       require 'maruku/ext/math'
-      html = sanitize_rexml(Maruku.new(@content.delete("\r\x01-\x08\x0B\x0C\x0E-\x1F"),
-            {:math_enabled => true, :math_numbered => ['\\[','\\begin{equation}']}).to_html_tree)
-      html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
+
+      # If the request is for S5, call Maruku accordingly
+      if @content.options[:mode] == :s5
+        my_content = Maruku.new(@content.delete("\r"), {:math_enabled => true,
+                            :math_numbered => ['\\[','\\begin{equation}'],
+                            :content_only => true,
+                            :author => @content.options[:engine_opts][:author],
+                            :title => @content.options[:engine_opts][:title]})
+        @content.options[:renderer].s5_theme = my_content.s5_theme
+        sanitize_xhtml(my_content.to_s5)
+      else
+        html = sanitize_rexml(Maruku.new(@content.delete("\r"),
+             {:math_enabled => true,
+              :math_numbered => ['\\[','\\begin{equation}']}).to_html_tree)
+        html.gsub(/\A<div class="maruku_wrapper_div">\n?(.*?)\n?<\/div>\Z/m, '\1')
+      end
+
     end
   end
 
diff --git a/lib/page_renderer.rb b/lib/page_renderer.rb
index d1d44ffa..2291c818 100644
--- a/lib/page_renderer.rb
+++ b/lib/page_renderer.rb
@@ -63,6 +63,18 @@ class PageRenderer
     end
   end
 
+  attr :s5_theme
+  def s5_theme=(s)
+    @s5_theme = s
+  end
+
+  # Renders an S5 slideshow
+  def display_s5
+    @display_s5 ||= render(:mode => :s5,
+                           :engine_opts => { :author => @revision.page.author,
+                             :title => @revision.page.plain_name}, :renderer => self)
+  end
+
   # Returns an array of all the WikiIncludes present in the content of this revision.
   def wiki_includes
     unless @wiki_includes_cache 
diff --git a/lib/wiki_content.rb b/lib/wiki_content.rb
index 1a0f5ba4..88d9aee0 100644
--- a/lib/wiki_content.rb
+++ b/lib/wiki_content.rb
@@ -117,7 +117,7 @@ class WikiContent < String
 
   DEFAULT_OPTS = {
     :active_chunks       => ACTIVE_CHUNKS,
-    :engine              => Engines::Textile,
+    :engine              => Engines::MarkdownMML,
     :engine_opts         => [],
     :mode                => :show
   }.freeze