Module: Jekyll::DistorteD::Molecule::PDF

Includes:
Cooltrainer::DistorteD::PDF
Defined in:
lib/distorted-jekyll/molecule/pdf.rb

Instance Method Summary collapse

Instance Method Details

#pdf_open_params ⇒ Object

Generate a Hash of our PDF Open Params based on any given to the Liquid tag and any loaded from the defaults. www.adobe.com/content/dam/acom/en/devnet/acrobat/pdfs/pdf_open_parameters.pdf



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# File 'lib/distorted-jekyll/molecule/pdf.rb', line 17

def pdf_open_params
  PDF_OPEN_PARAMS.map{ |p|
    if ATTRIBUTES_VALUES.dig(p) == BOOLEAN_ATTR_VALUES
      # Support multiple ways people might want to express a boolean
      if Set[0, '0'.freeze, false, 'false'.freeze].include?(abstract(p))
        [p, '0'.freeze]
      elsif Set[1, '1'.freeze, true, 'true'.freeze].include?(abstract(p))
        [p, '1'.freeze]
      end
    else
      [p, abstract(p)]
    end
  }.to_h
end

#pdf_open_params_url ⇒ Object

Generate the URL fragment version of the PDF Open Params. This would be difficult / impossible to construct within Liquid from the individual variables, so let’s just do it out here.



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# File 'lib/distorted-jekyll/molecule/pdf.rb', line 35

def pdf_open_params_url
    pdf_open_params.keep_if{ |p,v|
    v != nil && v != ""
  }.map{ |k,v|
    # The PDF Open Params docs specify `search` should be quoted.
    if k == :search
      "#{k}=\"#{v}\""
    else
      "#{k}=#{v}"
    end
  }.join('&')
end

#render_to_output_buffer(context, output) ⇒ Object 



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# File 'lib/distorted-jekyll/molecule/pdf.rb', line 48

def render_to_output_buffer(context, output)
  super
  begin
    # TODO: iOS treats our <object> like an <img>,
    # showing only the first page with transparency and stretched to the
    # size of the container element.
    # We will need something like PDF.js in an <iframe> to handle this.

    output << parse_template.render({
      'name' => @name,
      'path' => @relative_dest,
      'alt' => abstract(:alt),
      'title' => abstract(:title),
      'height' => abstract(:height),
      'width' => abstract(:width),
      'caption' => abstract(:caption),
      'pdf_open_params' => pdf_open_params_url,
    })
  rescue Liquid::SyntaxError => l
    unless Jekyll.env == 'production'.freeze
      output << parse_template(name: 'error_code'.freeze).render({
        'message' => l.message,
      })
    end
  end
  output
end