Class: Brief::Document::Transformer

Inherits:
Object
  • Object
show all
Defined in:
lib/brief/document/transformer.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(fragment, document) ⇒ Transformer 



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# File 'lib/brief/document/transformer.rb', line 8

def initialize(fragment, document)
  @fragment = fragment
  @document = document
end

Instance Attribute Details

#document ⇒ Object (readonly)

Returns the value of attribute document.



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# File 'lib/brief/document/transformer.rb', line 6

def document
  @document
end

#fragment ⇒ Object (readonly)

Returns the value of attribute fragment.



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# File 'lib/brief/document/transformer.rb', line 6

def fragment
  @fragment
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 13

def all
  transform_dynamic_links
  include_images
  inline_svg_content
end

#briefcase ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 19

def briefcase
  @briefcase ||= document.briefcase
end

#include_images ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 27

def include_images
  process_image_paths(inline_image_tags)
end

#inline_svg_content ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 23

def inline_svg_content
  process_image_paths(inline_svg_images)
end

#process_image_paths(set_of_tags) ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 31

def process_image_paths(set_of_tags)
  set_of_tags.each do |img|
    src = img['src'].to_s

    if src.match(/=/)
      _, value = img['src'].to_s.split("=")
    else
      value = src
    end

    begin
      asset = briefcase.find_asset(value)

      if !asset

      end

      if asset && asset.extname == ".svg"
        img.replace("<div class='svg-wrapper'>#{ asset.read }</div>")
      end

      if asset && %w(.gif .jpg .jpeg .png).include?(asset.extname.to_s.downcase)
        src = briefcase.get_external_url_for(asset)
        img['src'] = src
      end
    rescue
      nil
    end
  end
end

#transform_dynamic_links ⇒ Object 



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# File 'lib/brief/document/transformer.rb', line 62

def transform_dynamic_links
  dynamic_link_elements.each do |node|
    attribute, value = node['href'].to_s.split("=")
    instruction, strategy = node.text.to_s.split(':')

    if instruction == "link" && attribute == "path"
      begin
        link_to_doc = briefcase.document_at(value)

        if link_to_doc.exist?
          text = link_to_doc.send(strategy)
          node.inner_html = text
          node['href'] = briefcase.get_href_for("brief://#{ link_to_doc.path }")
        else
          node['href'] = briefcase.get_href_for("brief://document-not-found")
        end
      rescue
        nil
      end
    end
  end

  include_link_elements.each do |node|
    attribute, value = node['href'].to_s.split("=")
    instruction, strategy = node.text.to_s.split(':')

    if instruction == "include" && attribute == "path"
      include_doc = briefcase.document_at(value)

      replacement = nil

      if strategy == "raw_content"
        replacement = include_doc.unwrapped_html
      elsif strategy == "content"
        replacement = include_doc.to_html
      end

      node.replace(replacement) if replacement
    end
  end
rescue
  nil
end