Module: Laydown

Defined in:
lib/laydown.rb

Defined Under Namespace

Classes: Template

Constant Summary collapse

DEFAULTS = 
{
  :charset      => 'utf-8',
  :title        => '#{@title}',
  :description  => nil,
  :favicon      => nil,
  :keywords     => [:@keywords],
  :css          => [:@css, :@stylesheets],
  :js           => [:@javascripts, :@js],
  :inline_js    => [:@inline_js],
  :head         => [],
  :body_class   => [],
  :body         => :yield,
  :ga_code      => :@ga_code
}
TEMPLATE = 
<<'TEMPLATE'
_buf = [] ; _temple_pre_tags = /<pre|<textarea/ ; _buf << ("<!DOCTYPE html><html><head>") ; 
 ; 
 ; 
 ; if data[:title] ; 
 ; _buf << ("<title>#{data[:title]}"\
""\
"</title>") ; end ; if data[:favicon] ; 
 ; _buf << ("<link rel=\"shortcut icon\" url=\"#{Temple::Utils.escape_html((data[:favicon]))}\">"\
""\
"") ; end ; if data[:description] ; 
 ; _buf << ("<meta content=\"#{Temple::Utils.escape_html((data[:description]))}\" name=\"description\">"\
""\
"") ; end ; if data[:keywords].any? ; 
 ; _buf << ("<meta content=\"#{Temple::Utils.escape_html((data[:keywords].flatten.join(', ')))}\" name=\"keywords\">"\
""\
"") ; end ; data[:css].flatten.each do |url| ; 
 ; unless url == '' ; 
 ; _buf << ("<link href=\"#{Temple::Utils.escape_html((url))}\" rel=\"stylesheet\" type=\"text/css\">"\
""\
"") ; end ; end ; data[:js].flatten.each do |url| ; 
 ; unless url == '' ; 
 ; _buf << ("<script src=\"#{Temple::Utils.escape_html((url))}\" type=\"text/javascript\"></script>"\
""\
"") ; end ; end ; if data[:inline_js] && !data[:inline_js].empty? ; 
 ; _buf << ("<script type=\"text/javascript\">") ; 
 ; data[:inline_js].flatten.each do |code| ; 
 ; unless code == '' ; 
 ; _buf << (code) ; 
 ; 
 ; end ; end ; _buf << ("</script>") ; end ; if data[:head] ; 
 ; data[:head].each do |item| ; 
 ; _buf << (item) ; 
 ; 
 ; end ; end ; _buf << ("</head><body class=\"#{Temple::Utils.escape_html((data[:body_class].flatten.join(' ')))}\">"\
"#{data[:body]}"\
""\
"") ; if data[:ga_code] ; 
 ; 
 ; _buf << ("<script type=\"text/javascript\">var _gaq = _gaq || [];\n_gaq.push(['_setAccount', '"\
"#{Temple::Utils.escape_html((data[:ga_code]))}']);\n_gaq.push(['_trackPageview']);\n(function() {\nvar ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;\nga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';\nvar s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);\n})();</script>"\
""\
""\
""\
""\
""\
""\
"") ; end ; _buf << ("</body></html>") ; _buf = _buf.join
TEMPLATE

Class Method Summary collapse

Class Method Details

.compile(values = {}) ⇒ Object 



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# File 'lib/laydown.rb', line 35

def compile(values={})
  process(values)
  validate(values)
  make_template_from(values)
end

.literalize(obj) ⇒ Object 



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# File 'lib/laydown.rb', line 62

def literalize(obj)
  case obj
    when String then obj.inspect.gsub(/\\#\{/, '#{') + "+''"
    when Symbol then obj.to_s
    when nil    then 'nil'
    when Array
      '[' + obj.map {|o| literalize(o) }.join(', ') + ']'
    else obj.to_s.inspect
  end
end

.make_template_from(values) ⇒ Object 



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# File 'lib/laydown.rb', line 56

def make_template_from(values)
  TEMPLATE.gsub(/data\[:([a-zA-Z0-9_]+)\]/) do |m|
    literalize values[:"#{$1}"]
  end
end

.new(hsh = {}) ⇒ Object 



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# File 'lib/laydown.rb', line 90

def self.new(hsh={})
  Template.new(hsh)
end

.plural_properties ⇒ Object 



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# File 'lib/laydown.rb', line 31

def plural_properties
  properties.select {|name| DEFAULTS[name].is_a?(Array) }
end

.process(values) ⇒ Object 



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# File 'lib/laydown.rb', line 41

def process(values)
  DEFAULTS.each {|k,v| values[k] ||= v }
  plural_properties.each do |k|
    values[k] = Array(values[k]).flatten.compact
  end
end

.properties ⇒ Object 



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# File 'lib/laydown.rb', line 27

def properties
  DEFAULTS.keys
end

.validate(values) ⇒ Object 



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# File 'lib/laydown.rb', line 48

def validate(values)
  values.keys.each do |value|
    unless DEFAULTS.keys.include?(value)
      raise "no Laydown property called #{value.inspect}"
    end
  end
end