first working version

.gitignore

@@ -1,3 +1,4 @@
 *.sw?
 .DS_Store
-coverage
+coverage
+rdoc/*

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2008 S. Brent Faulkner
+Copyright (c) 2009 unwwwired.net
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

README.rdoc

@@ -0,0 +1,27 @@
+= sinatra-prawn
+
+sinatra-prawn is an extension for sinatra to enable rendering of pdf files
+using prawn templates.
+
+== Example
+
+    require 'rubygems'
+    require 'sinatra'
+    require 'sinatra/prawn'
+
+    set :prawn, { :page_layout => :landscape }
+
+    get '/' do
+      content_type 'application/pdf'
+      prawn :pdf
+    end
+
+    __END__
+
+    @@ pdf
+    pdf.text "Hello world!!!!!"
+
+== Legal
+
+Author:: S. Brent Faulkner <brentf@unwwwired.net>  
+License:: Copyright (c) 2009 unwwwired.net, released under the MIT license

Rakefile

@@ -7,8 +7,9 @@ begin
     s.summary = %Q{Sinatra extension to add support for pdf rendering with Prawn templates.}
     s.email = "brentf@unwwwired.net"
     s.homepage = "http://github.com/sbfaulkner/sinatra-prawn"
-    s.description = "TODO"
+    s.description = "Sinatra extension to add support for pdf rendering with Prawn templates."
     s.authors = ["S. Brent Faulkner"]
+    s.add_dependency "prawn"
   end
 rescue LoadError
   puts "Jeweler not available. Install it with: sudo gem install technicalpickles-jeweler -s http://gems.github.com"
@@ -41,11 +42,4 @@ rescue LoadError
   puts "RCov is not available. In order to run rcov, you must: sudo gem install spicycode-rcov"
 end
 
-begin
-  require 'cucumber/rake/task'
-  Cucumber::Rake::Task.new(:features)
-rescue LoadError
-  puts "Cucumber is not available. In order to run features, you must: sudo gem install cucumber"
-end
-
 task :default => :test

VERSION.yml

@@ -0,0 +1,4 @@
+--- 
+:major: 0
+:minor: 9
+:patch: 1

lib/sinatra/prawn.rb

@@ -0,0 +1,31 @@
+require 'sinatra/base'
+
+module Sinatra
+  module Prawn
+    # Generate pdf file using Prawn.
+    # Takes the name of a template to render as a Symbol and returns a String with the rendered output.
+    #
+    # Options for prawn may be specified in Sinatra using set :prawn, { ... }
+    def prawn(template=nil, options={}, &block)
+      require 'prawn' unless defined? ::Prawn
+      options, template = template, nil if template.is_a?(Hash)
+      template = lambda { block } if template.nil?
+      options[:layout] = false
+      options[:options] ||= self.class.prawn if self.class.respond_to? :prawn
+      render :prawn, template, options
+    end
+
+  protected
+    def render_prawn(template, data, options, &block)
+      pdf = ::Prawn::Document.new(options[:options] || {})
+      if data.respond_to?(:to_str)
+        eval data.to_str, binding, '<PRAWN>', 1
+      elsif data.kind_of?(Proc)
+        data.call(pdf)
+      end
+      pdf.render
+    end
+  end
+
+  helpers Prawn
+end

sinatra-prawn.gemspec

@@ -0,0 +1,32 @@
+# -*- encoding: utf-8 -*-
+
+Gem::Specification.new do |s|
+  s.name = %q{sinatra-prawn}
+  s.version = "0.9.1"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.authors = ["S. Brent Faulkner"]
+  s.date = %q{2009-03-11}
+  s.description = %q{Sinatra extension to add support for pdf rendering with Prawn templates.}
+  s.email = %q{brentf@unwwwired.net}
+  s.files = ["README.rdoc", "VERSION.yml", "lib/sinatra", "lib/sinatra/prawn.rb", "test/sinatra_prawn_test.rb", "test/test_helper.rb", "test/views", "test/views/hello.prawn"]
+  s.has_rdoc = true
+  s.homepage = %q{http://github.com/sbfaulkner/sinatra-prawn}
+  s.rdoc_options = ["--inline-source", "--charset=UTF-8"]
+  s.require_paths = ["lib"]
+  s.rubygems_version = %q{1.3.1}
+  s.summary = %q{Sinatra extension to add support for pdf rendering with Prawn templates.}
+
+  if s.respond_to? :specification_version then
+    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
+    s.specification_version = 2
+
+    if Gem::Version.new(Gem::RubyGemsVersion) >= Gem::Version.new('1.2.0') then
+      s.add_runtime_dependency(%q<prawn>, [">= 0"])
+    else
+      s.add_dependency(%q<prawn>, [">= 0"])
+    end
+  else
+    s.add_dependency(%q<prawn>, [">= 0"])
+  end
+end

test/sinatra_prawn_test.rb

@@ -1,7 +1,51 @@
 require File.dirname(__FILE__) + '/test_helper'
 
 class SinatraPrawnTest < Test::Unit::TestCase
-  def test_something_for_real
-    flunk "hey buddy, you should probably rename this file and start testing for real"
+  include Sinatra::Test
+
+  def prawn_app(&block)
+    mock_app {
+      helpers Sinatra::Prawn
+      set :views, File.dirname(__FILE__) + '/views'
+      get '/', &block
+    }
+    get '/'
+  end
+
+  def test_renders_inline_strings
+    prawn_app { prawn 'pdf.text "Hello shrimp!"' }
+    assert ok?
+    text = PDF::TextInspector.analyze(body)
+    assert_equal "Hello shrimp!", text.strings.first
+  end
+
+  def test_renders_inline_blocks
+    prawn_app {
+      @name = "Frank & Mary"
+      prawn do |pdf|
+        pdf.text "Hello #{@name}!"
+      end
+    }
+    assert ok?
+    text = PDF::TextInspector.analyze(body)
+    assert_equal "Hello Frank & Mary!", text.strings.first
+  end
+
+  def test_renders_prawn_files_in_views_path
+    prawn_app {
+      @name = "World"
+      prawn :hello
+    }
+    assert ok?
+    text = PDF::TextInspector.analyze(body)
+    assert_equal "Hello, World!", text.strings.first
+  end
+
+  def test_raises_error_if_template_not_found
+    mock_app {
+      helpers Sinatra::Prawn
+      get('/') { prawn :no_such_template }
+    }
+    assert_raise(Errno::ENOENT) { get('/') }
   end
 end

test/test_helper.rb

@@ -1,9 +1,63 @@
 require 'rubygems'
 require 'test/unit'
-require 'mocha'
+require 'sinatra/test'
 
 $LOAD_PATH.unshift(File.dirname(__FILE__))
-require 'sinatra_prawn'
+require 'sinatra/prawn'
+
+require "pdf/reader"
+
+module PDF
+  class TextInspector
+    attr_accessor :font_settings, :size, :strings
+
+    def initialize
+      @font_settings = []
+      @fonts = {}
+      @strings = []
+    end
+
+    def resource_font(*params)
+      @fonts[params[0]] = params[1].basefont
+    end
+
+    def set_text_font_and_size(*params)
+      @font_settings << { :name => @fonts[params[0]], :size => params[1] }
+    end
+
+    def show_text(*params)
+      @strings << params[0]
+    end
+
+    def show_text_with_positioning(*params)
+      # ignore kerning information
+      @strings << params[0].reject { |e| Numeric === e }.join
+    end
+
+    def self.analyze(output,*args,&block)
+      obs = self.new(*args, &block)
+      PDF::Reader.string(output,obs)
+      obs
+    end
+
+    def self.analyze_file(filename,*args,&block)
+      analyze(File.open(filename, "rb") { |f| f.read },*args,&block)
+    end
+
+    def self.parse(obj)
+      PDF::Reader::Parser.new(
+        PDF::Reader::Buffer.new(StringIO.new(obj)), nil).parse_token
+    end
+  end
+end
 
 class Test::Unit::TestCase
+  include Sinatra::Test
+
+  # Sets up a Sinatra::Base subclass defined with the block
+  # given. Used in setup or individual spec methods to establish
+  # the application.
+  def mock_app(base=Sinatra::Base, &block)
+    @app = Sinatra.new(base, &block)
+  end
 end

test/views/hello.prawn

@@ -0,0 +1 @@
+pdf.text "Hello, #{@name}!"