reworking of railspdf to transition to prawn and prawn_view

init.rb

@@ -1,3 +1,3 @@
-require 'railspdf'
+require 'prawn'
 
-ActionView::Template.register_template_handler 'rpdf', RailsPDF::PDFRender
+ActionView::Template.register_template_handler 'prawn', PrawnView::PrawnView

lib/prawn_view.rb

@@ -0,0 +1,49 @@
+require 'prawn'
+
+module PrawnView
+
+  class PrawnView < ActionView::Base
+    include ApplicationHelper
+
+    def initialize(action_view)
+      @action_view = action_view
+
+      # include controller's helper
+      prefix = action_view.controller.class.to_s.gsub(/Controller/, '')
+      self.class.send(:include, "#{prefix}Helper".constantize)
+    end
+
+    def render(template, local_assigns = {})
+      controller = @action_view.controller
+      headers = controller.headers
+
+      #get the instance variables setup	    	
+      controller.instance_variables.each do |v|
+        instance_variable_set(v, controller.instance_variable_get(v))
+      end
+
+      pragma = 'no-cache'
+      cache_control = 'no-cache, must-revalidate'
+      pragma = cache_control = '' if controller.request.env['HTTP_USER_AGENT'] =~ /msie/i #keep ie happy (from railspdf-- no personal knowledge of these issues)
+
+      headers['Pragma'] ||= pragma
+      headers['Cache-Control'] ||= cache_control
+      headers["Content-Type"] ||= 'application/pdf'
+      headers["Content-Disposition"] ||= "attachment; filename=#{@filename}" if @filename #specify @filename in controller otherwise will be inline -- is this true?
+
+      prawn = Prawn::Document.new
+      eval template.source, prawn, "#{@action_view.base_path}/#{@action_view.first_render}.#{@action_view.finder.pick_template_extension(@action_view.first_render)}"
+      prawn.render
+    end
+
+    def compilable?
+      false
+    end
+
+  end
+end
+
+module Prawn
+  class Document
+    def set_options(options)
+

test/railspdf_test.rb → test/prawn_view_test.rb

@@ -3,10 +3,10 @@
 class SomeController; end
 module SomeHelper; end
 
-class RailsPDF::PDFRenderTest < Test::Unit::TestCase
+class PrawnView::PrawnViewTest < Test::Unit::TestCase
   def test_should_not_be_compilable
     view = stub(:controller => SomeController.new)
-    pdf = RailsPDF::PDFRender.new(view)
-    assert !pdf.compilable?
+    prawn_view = PrawnView::PrawnView.new(view)
+    assert !prawn_view.compilable?
   end
 end

test/test_helper.rb

@@ -5,5 +5,5 @@
 module ApplicationHelper; end
 
 $LOAD_PATH << File.dirname(__FILE__) + '/../lib'
-require 'railspdf'
-require 'mocha'
+require 'prawn'
+require 'mocha'