Class: Black::Preview

Inherits:
Object
  • Object
show all
Defined in:
lib/black/preview.rb

Overview

rack compatable preview generator Usage: Create a new rack application in config.ru:

require 'rack'
require 'black'

diff = Black::Diff.new('older string', 'newer string', 'file-name.html')
content = Black::HTMLView.render(diff: diff)
run Black::Preview.new(content)

Then run the rack app: $ rackup config.ru

Defined Under Namespace

Classes: Context

Constant Summary collapse

Template = 
<<-TEXT
<!doctype html>
<html>
<head>
  <style>
    html, body { margin: 0; padding: 0; }
    <%= css %>
  </style>
</head>
<body>
  <%= content %>
</body>
</html>
TEXT

Instance Method Summary collapse

Constructor Details

#initialize(content, css = nil) ⇒ Preview

Returns a new instance of Preview.



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# File 'lib/black/preview.rb', line 32

def initialize(content, css=nil)
  @css = css
  @content = content
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/black/preview.rb', line 37

def call(env)
  @css ||= Black::Stylesheets.css({ style: :compressed })

  context = Context.new(@content, @css)
  output = ::ERB.new(Template).result(context.get_binding)

  [200, {'Content-Type' => 'text/html'}, [output]]
end