* First real commit of InCurve gem

welaika · Jul 30, 2010 · 964ba24 · 964ba24
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diff --git a/LICENSE b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2009 Stefano Verna
+Copyright (c) 2010 weLaika
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

diff --git a/README.rdoc b/README.rdoc
@@ -1,7 +1,43 @@
-= incurve
+= InCurve
 
-Description goes here.
+InCurve provides a single, beautiful, handy helper method for your Rails app, letting you easily inline any CSS code present on your mail views.
+InCurve is just a small wrapper around the "premailer" gem.
 
+== Example
+
+If you have this mail view:
+
+  <% incurve_css do %>
+    <html>
+      <head>
+        <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+        <style type="text/css">
+          body { 
+            background-color: #e6e6e6;
+            background-position: top center;
+            background-repeat: no-repeat repeat-y;
+            margin: 0;
+            padding: 0;
+          }
+        </style>
+      </head>
+      <body>
+      </body>
+    </html>
+  <% end %>
+
+The mail you'll send will be like this:
+
+  <html>
+    <head>
+      <meta content="text/html; charset=utf-8" http-equiv="Content-Type" />    
+    </head>
+    <body style="background-color: #e6e6e6; background-position: top center; background-repeat: no-repeat repeat-y; margin: 0; padding: 0;">
+    </body>
+  </html>
+
+Sweet.
+
 == Note on Patches/Pull Requests
 
 * Fork the project.
@@ -14,4 +50,4 @@ Description goes here.
 
 == Copyright
 
-Copyright (c) 2010 Stefano Verna. See LICENSE for details.
+Copyright (c) 2010 weLaika. See LICENSE for details.
diff --git a/Rakefile b/Rakefile
@@ -5,12 +5,13 @@ begin
   require 'jeweler'
   Jeweler::Tasks.new do |gem|
     gem.name = "incurve"
-    gem.summary = %Q{TODO: one-line summary of your gem}
-    gem.description = %Q{TODO: longer description of your gem}
+    gem.summary = %Q{Inline that damn CSS in your mail views.}
+    gem.description = %Q{incurve provides some handy helper methods for your Rails app, letting you easily inline your CSS code and auto-guess its text-only content.}
     gem.email = "stefano.verna@welaika.com"
     gem.homepage = "http://github.com/welaika/incurve"
     gem.authors = ["Stefano Verna"]
     gem.add_development_dependency "thoughtbot-shoulda", ">= 0"
+    gem.add_dependency("premailer")
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new

diff --git a/lib/incurve.rb b/lib/incurve.rb
@@ -0,0 +1,22 @@
+require 'active_support'
+require 'incurve/string_premailer'
+
+module InCurve
+
+  class << self
+    def enable
+      enable_actionpack
+    end
+
+    def enable_actionpack
+      return if ActionView::Base.instance_methods.include_method? :incurve_css
+      require 'incurve/view_helpers'
+      ActionView::Base.send :include, ViewHelpers
+    end    
+  end
+
+end
+
+if defined? Rails
+  InCurve.enable_actionpack if defined? ActionController
+end
diff --git a/lib/incurve/string_premailer.rb b/lib/incurve/string_premailer.rb
@@ -0,0 +1,18 @@
+require 'premailer'
+
+class StringPremailer < Premailer
+
+  protected
+
+  def load_html(path)
+    if path.is_a?(IO) || path.is_a?(StringIO)
+      @html_file = "http://foo.bar"
+      Hpricot(path.read)
+    elsif @is_local_file
+      Hpricot(File.open(path, "r") {|f| f.read })
+    else
+      Hpricot(open(path))
+    end
+  end
+
+end
diff --git a/lib/incurve/view_helpers.rb b/lib/incurve/view_helpers.rb
@@ -0,0 +1,11 @@
+module InCurve
+  module ViewHelpers
+
+    def incurve_css(&block)
+      c = capture(&block)
+      premailer = StringPremailer.new(StringIO.new(c))
+      premailer.to_inline_css.html_safe
+    end
+
+  end
+end