Fix gap for iconless nodes in history view
[rails.git] / lib / rich_text.rb
index f2a558e6af8dcc92aae9aa588ce8216edb0ab248..87ea58933579e93c043d1ed28adf5f9ac7a0f094 100644 (file)
@@ -3,11 +3,22 @@ module RichText
     case format
     when "html"; HTML.new(text || "")
     when "markdown"; Markdown.new(text || "")
+    when "text"; Text.new(text || "")
     else; nil
     end
   end
 
+  class SimpleFormat
+    include ActionView::Helpers::TextHelper
+
+    def sanitize(text)
+      Sanitize.clean(text, Sanitize::Config::OSM).html_safe
+    end
+  end
+
   class Base < String
+    include ActionView::Helpers::TagHelper
+
     def spam_score
       link_count = 0
       link_size = 0
@@ -25,20 +36,31 @@ module RichText
         link_proportion = 0
       end
 
-      return [link_proportion - 0.2, 0.0].max * 200 + link_count * 20
+      return [link_proportion - 0.2, 0.0].max * 200 + link_count * 40
+    end
+
+  protected
+
+    def simple_format(text)
+      SimpleFormat.new.simple_format(text)
+    end
+
+    def linkify(text)
+      if text.html_safe?
+        Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow")).html_safe
+      else
+        Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow"))
+      end
     end
   end
 
   class HTML < Base
-    include ActionView::Helpers::TextHelper
-    include ActionView::Helpers::TagHelper
-
     def to_html
       linkify(sanitize(simple_format(self)))
     end
 
     def to_text
-      self
+      self.to_s
     end
 
   private
@@ -46,14 +68,6 @@ module RichText
     def sanitize(text)
       Sanitize.clean(text, Sanitize::Config::OSM).html_safe
     end
-
-    def linkify(text)
-      if text.html_safe?
-        Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow")).html_safe
-      else
-        Rinku.auto_link(text, :urls, tag_options(:rel => "nofollow"))
-      end
-    end
   end
 
   class Markdown < Base
@@ -62,18 +76,42 @@ module RichText
     end
 
     def to_text
-      self
+      self.to_s
     end
 
   private
 
     def html_parser
-      @@html_renderer ||= Redcarpet::Render::XHTML.new({
+      @@html_renderer ||= Renderer.new({
         :filter_html => true, :safe_links_only => true
       })
       @@html_parser ||= Redcarpet::Markdown.new(@@html_renderer, {
         :no_intra_emphasis => true, :autolink => true, :space_after_headers => true
       })
     end
+
+    class Renderer < Redcarpet::Render::XHTML
+      def link(link, title, alt_text)
+        "<a rel=\"nofollow\" href=\"#{link}\">#{alt_text}</a>"
+      end
+
+      def autolink(link, link_type)
+        if link_type == :email
+          "<a rel=\"nofollow\" href=\"mailto:#{link}\">#{link}</a>"
+        else
+          "<a rel=\"nofollow\" href=\"#{link}\">#{link}</a>"
+        end
+      end 
+    end
+  end
+
+  class Text < Base
+    def to_html
+      linkify(simple_format(ERB::Util.html_escape(self)))
+    end
+
+    def to_text
+      self.to_s
+    end
   end
 end