Class: Epub::Package

Inherits:
Object
  • Object
show all
Defined in:
lib/epub-reader/package.rb

Instance Method Summary collapse

Constructor Details

#initialize(rootfile, file) ⇒ Package

Returns a new instance of Package.



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# File 'lib/epub-reader/package.rb', line 4

def initialize(rootfile, file)
  @rootfile = rootfile
  @file     = file
  @package  = get_package_content(file)
  @xml = Nokogiri::XML(@package).remove_namespaces!
end

Instance Method Details

#audios ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 98

def audios
  resources.select{|resource| resource.attr('media-type').to_s.match(/^audio\/(mpeg|mp4)/)}
end

#contributor ⇒ Object

TODO: equal to creator



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# File 'lib/epub-reader/package.rb', line 55

def contributor
  contributors.size > 0 ? contributors.first.text : ""
end

#cover ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 109

def cover
  begin
    cover_meta     = metadata.css('[name="cover"]')
    meta_content   = cover_meta.size == 1 ? cover_meta.attr('content') : nil
    cover_content  = meta_content || manifest.css('[properties="cover-image"]').attr('id').to_s
    cover_path     = (cover_content.to_s.match(/\.(gif|jpe?g|png)/) ? cover_content : resources.css("##{cover_content}").attr('href').to_s)
    if cover_exist?(relative_content_path + cover_path)
      relative_content_path + cover_path
    elsif cover_exist?(relative_content_path + "Images/" + cover_path)
      relative_content_path + "Images/" + cover_path
    else
      ""
    end
  rescue
    ""
  end
end

#creator ⇒ Object

TODO: identify role TODO: identify file-as TODO: identify alternate-script TODO: identify display-seq



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# File 'lib/epub-reader/package.rb', line 50

def creator
  creators.size > 0 ? creators.first.text : ""
end

#date ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 59

def date
  d = metadata.css('data')
  d.size > 0 ? d.text : ""
end

#fonts ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 94

def fonts
  resources.select{|resource| resource.attr('media-type').to_s.match(/application\/(vnd\.ms-opentype|font-woff)/)}
end

#html ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 82

def html
  resources.css('[media-type="application/xhtml+xml"]')
end

#identifier ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 32

def identifier
  identifiers.css("[id=#{unique_identifier}]").text
end

#images ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 78

def images
  resources.select{|resource| resource.attr('media-type').to_s.match(/^image\/(gif|jpeg|svg\+xml)/)}
end

#javascripts ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 90

def javascripts
  resources.css('[media-type="text/javascript"]')
end

#language ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 42

def language
  languages.first.text
end

#mediatype ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 24

def mediatype
  @rootfile.attr('media-type')
end

#path ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 15

def path
  @rootfile.attr('full-path').to_s
end

#raw ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 11

def raw
  @package.to_s
end

#reading_order ⇒ Object

TODO: to parse guide [optional/deprecated] bindings [optional]



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# File 'lib/epub-reader/package.rb', line 131

def reading_order
  spine_items.map do |item|
    item_id = item.attr('idref').to_s
    manifest.css("##{item_id}") if item_id
  end
end

#relative_content_path ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 19

def relative_content_path
  i   = path.rindex('/').to_i
  i > 0 ? path[0,i+1] : ""
end

#resources ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 74

def resources
  manifest.css('item')
end

#source ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 64

def source
  s = metadata.css('source')
  s.size > 0 ? s.text : ""
end

#stylesheets ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 86

def stylesheets
  resources.css('[media-type="text/css"]')
end

#title ⇒ Object

TODO: identify language TODO: identify subtitles



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# File 'lib/epub-reader/package.rb', line 38

def title
  titles.first.text
end

#toc ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 102

def toc
  toc_item_id       = spine.attr("toc")
  toc_item_mimetype = "application/x-dtbncx+xml"
  toc_item_selector = toc_item_id ? "##{toc_item_id.to_s}" : '[media-type="#{toc_item_mimetype}"]'
  relative_content_path + resources.css(toc_item_selector).attr('href').to_s
end

#type ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 69

def type
  t = metadata.css('type')
  t.size > 0 ? t.text : ""
end

#version ⇒ Object 



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# File 'lib/epub-reader/package.rb', line 28

def version
  root.attr('version').to_s.to_i
end