Class: Awestruct::Handlers::AsciidoctorHandler

Inherits:
TiltHandler show all
Defined in:
lib/awestruct/handlers/asciidoctor_handler.rb

Constant Summary collapse

CHAIN = 
Awestruct::HandlerChain.new( Awestruct::Handlers::AsciidoctorTiltMatcher.new(),
  Awestruct::Handlers::FileHandler,
  Awestruct::Handlers::FrontMatterHandler,
  Awestruct::Handlers::InterpolationHandler,
  Awestruct::Handlers::AsciidoctorHandler,
  Awestruct::Handlers::LayoutHandler
)

Constants inherited from TiltHandler

TiltHandler::INTERPOLATION_CHAIN, TiltHandler::NON_INTERPOLATION_CHAIN

Instance Attribute Summary

Attributes inherited from BaseHandler

#delegate, #site

Instance Method Summary collapse

Methods inherited from BaseTiltHandler

#content_syntax, #double_extension?, #input_extension, #output_extension, #output_filename, #simple_name, #source_file_name

Methods inherited from BaseHandler

#content_syntax, #dependencies, #execute_shell, #input_mtime, #output_extension, #output_filename, #output_path, #path, #relative_source_path, #simple_name, #stale?, #to_chain

Constructor Details

#initialize(site, delegate) ⇒ AsciidoctorHandler

Returns a new instance of AsciidoctorHandler.



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 36

def initialize(site, delegate)
  super( site, delegate )

  @site = site
  @front_matter = front_matter
end

Instance Method Details

#content_line_offset ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 60

def content_line_offset
  parse_header()
  @delegate.content_line_offset if @delegate
end

#front_matter ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 44

def front_matter
  @front_matter ||= {}
  parse_header()
  if @delegate
    @front_matter.update @delegate.front_matter
    # push front matter forward as well
    @delegate.front_matter.replace @front_matter
    @front_matter
  end
end

#inherit_front_matter(page) ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 119

def inherit_front_matter(page)
  parse_header()
  page.inherit_front_matter_from(front_matter)
  super
end

#options ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 79

def options
  opts = super
  opts[:attributes] ||= {}
  opts[:attributes].update(@front_matter.inject({}) {|collector, (key,val)|
    collector["page-#{key}"] = "#{val}@"
    collector
  })
  # Keep only values that can be coerced to as string
  types = [String, Numeric, TrueClass, FalseClass, Date, Time]
  opts[:attributes].update(@site.inject({}) {|collector, (key,val)|
    collector["site-#{key}"] = "#{val}@" if types.detect {|t| val.kind_of? t }
    collector
  })
  opts[:attributes]['env'] = @site
  opts[:attributes]['env-site'] = true
  opts[:attributes]['awestruct-version'] = Awestruct::VERSION
  if @front_matter['header_footer']
    opts[:header_footer] = true
  end
  path_expanded = File.expand_path path
  opts[:attributes]['docdir'] = File.dirname path_expanded
  opts[:attributes]['docfile'] = path_expanded
  opts[:attributes]['docname'] = simple_name
  path_mtime = path.mtime
  opts[:attributes]['docdate'] = docdate = path_mtime.strftime('%Y-%m-%d')
  opts[:attributes]['doctime'] = doctime = path_mtime.strftime('%H:%M:%S %Z')
  opts[:attributes]['docdatetime'] = %(#{docdate} #{doctime})
  # TODO once Asciidoctor 1.5.0 is release, we should set the base_dir as a jail
  # we can't do this before 1.5.0 due to a bug in how includes are resolved
  if (Object.const_defined? 'Asciidoctor') && Asciidoctor::VERSION >= '1.5.0'
    opts[:base_dir] ||= @site.config.dir
  end
  opts
end

#parse_document_attributes(content) ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 135

def parse_document_attributes(content)
  template = ::Tilt::new(delegate.path.to_s, delegate.content_line_offset + 1, options)
  headers = template.parse_headers(content, /^(?:page|awestruct)\-(?=.)/).inject({'interpolate' => false}) do |hash, (k,v)|
    unless v.nil?
      hash[k] = v.empty? ? v : YAML.load(v)
      if hash[k].kind_of? Time
        # use DateTime to preserve timezone information
        hash[k] = DateTime.parse(v)
      end
    end
    hash
  end
  headers
end

#parse_header ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 125

def parse_header
  return if @parsed_parts

  content = delegate.raw_content
  unless content.nil?
    @front_matter = parse_document_attributes(content)
  end
  @parsed_parts = true
end

#raw_content ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 55

def raw_content
  parse_header()
  @delegate.raw_content if @delegate
end

#rendered_content(context, with_layouts) ⇒ Object 



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# File 'lib/awestruct/handlers/asciidoctor_handler.rb', line 65

def rendered_content(context, with_layouts)
  parse_header()
  front_matter_ref = front_matter
  types = [String, Numeric, TrueClass, FalseClass, Array]
  front_matter_ref.update(context.page.inject({}) {|hash, (k,v)|
    hash[k.to_s] = v if not k.to_s.start_with?('__') and types.detect { |t| v.kind_of? t }
    hash
  })
  if with_layouts && !context.page.layout
    front_matter_ref['header_footer'] = true
  end
  super
end