Class: EPUBMaker::EPUBv3

Inherits:
EPUBCommon show all
Defined in:
lib/epubmaker/epubv3.rb

Overview

EPUBv3 is EPUB version 3 producer.

Instance Method Summary collapse

Methods inherited from EPUBCommon

#colophon, #colophon_history, #container, #cover, #date_to_s, #flat_ncx, #hierarchy_ncx, #join_with_separator, #legacy_cover_and_title_file, #mimetype, #mytoc, #ncx_doctitle, #ncx_isbn, #ncx_navmap, #opf_coverimage, #opf_path, #produce_write_common, #titlepage

Constructor Details

#initialize(producer) ⇒ EPUBv3

Construct object with parameter hash config and message resource hash res.



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# File 'lib/epubmaker/epubv3.rb', line 18

def initialize(producer)
  super
  @opf_prefix = {}
  if @producer.config['opf_prefix'].present?
    @producer.config['opf_prefix'].each { |k, v| @opf_prefix[k] = v }
  end
end

Instance Method Details

#ncx(indentarray) ⇒ Object 



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# File 'lib/epubmaker/epubv3.rb', line 200

def ncx(indentarray)
  ncx_main = if @producer.config['epubmaker']['flattoc'].nil?
               hierarchy_ncx('ol')
             else
               flat_ncx('ol', @producer.config['epubmaker']['flattocindent'])
             end

  @body = <<EOT
  <nav xmlns:epub="http://www.idpf.org/2007/ops" epub:type="toc" id="toc">
  <h1 class="toc-title">#{CGI.escapeHTML(@producer.res.v('toctitle'))}</h1>
#{ncx_main}  </nav>
EOT

  @title = CGI.escapeHTML(@producer.res.v('toctitle'))
  @language = @producer.config['language']
  @stylesheets = @producer.config['stylesheet']
  tmplfile = File.expand_path('./html/layout-html5.html.erb', ReVIEW::Template::TEMPLATE_DIR)
  ReVIEW::Template.load(tmplfile).result(binding)
end

#opf ⇒ Object

Return opf file content.



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# File 'lib/epubmaker/epubv3.rb', line 27

def opf
  @opf_metainfo = opf_metainfo
  @opf_coverimage = opf_coverimage
  @opf_manifest = opf_manifest
  @opf_toc = opf_tocx
  @package_attrs = ''

  if @opf_prefix && @opf_prefix.size > 0
    prefixes_str = @opf_prefix.map { |k, v| %Q(#{k}: #{v}) }.join(' ')
    @package_attrs << %Q( prefix="#{prefixes_str}")
  end

  tmplfile = File.expand_path('./opf/epubv3.opf.erb', ReVIEW::Template::TEMPLATE_DIR)
  ReVIEW::Template.load(tmplfile).result(binding)
end

#opf_manifest ⇒ Object 



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# File 'lib/epubmaker/epubv3.rb', line 139

def opf_manifest
  s = ''
  s << <<EOT
  <manifest>
<item properties="nav" id="#{@producer.config['bookname']}-toc.#{@producer.config['htmlext']}" href="#{@producer.config['bookname']}-toc.#{@producer.config['htmlext']}" media-type="application/xhtml+xml"/>
<item id="#{@producer.config['bookname']}" href="#{@producer.config['cover']}" media-type="application/xhtml+xml"/>
EOT

  if @producer.config['coverimage']
    @producer.contents.each do |item|
      next if !item.media.start_with?('image') || File.basename(item.file) != @producer.config['coverimage']
      s << %Q(    <item properties="cover-image" id="cover-#{item.id}" href="#{item.file}" media-type="#{item.media}"/>\n)
      item.id = nil
      break
    end
  end

  @producer.contents.each do |item|
    next if item.file =~ /#/ || item.id.nil? # skip subgroup, or id=nil (for cover)
    propstr = ''
    if item.properties.size > 0
      propstr = %Q( properties="#{item.properties.sort.uniq.join(' ')}")
    end
    s << %Q(    <item id="#{item.id}" href="#{item.file}" media-type="#{item.media}"#{propstr}/>\n)
  end
  s << %Q(  </manifest>\n)

  s
end

#opf_metainfo ⇒ Object 



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# File 'lib/epubmaker/epubv3.rb', line 43

def opf_metainfo
  s = ''
  %w[title language date type format source description relation coverage subject rights].each do |item|
    next unless @producer.config[item]
    if @producer.config[item].is_a?(Array)
      @producer.config[item].each_with_index do |v, i|
        if v.is_a?(Hash)
          s << %Q(    <dc:#{item} id="#{item}-#{i}">#{CGI.escapeHTML(v['name'])}</dc:#{item}>\n)
          v.each_pair do |name, val|
            next if name == 'name'
            s << %Q(    <meta refines="##{item}-#{i}" property="#{name}">#{CGI.escapeHTML(val)}</meta>\n)
          end
        else
          s << %Q(    <dc:#{item} id="#{item}-#{i}">#{CGI.escapeHTML(v.to_s)}</dc:#{item}>\n)
        end
      end
    elsif @producer.config[item].is_a?(Hash)
      s << %Q(    <dc:#{item} id="#{item}">#{CGI.escapeHTML(@producer.config[item]['name'])}</dc:#{item}>\n)
      @producer.config[item].each_pair do |name, val|
        next if name == 'name'
        s << %Q(    <meta refines="##{item}" property="#{name}">#{CGI.escapeHTML(val)}</meta>\n)
      end
    else
      s << %Q(    <dc:#{item} id="#{item}">#{CGI.escapeHTML(@producer.config[item].to_s)}</dc:#{item}>\n)
    end
  end

  s << %Q(    <meta property="dcterms:modified">#{@producer.config['modified']}</meta>\n)

  # ID
  if @producer.config['isbn'].nil?
    s << %Q(    <dc:identifier id="BookId">#{@producer.config['urnid']}</dc:identifier>\n)
  else
    s << %Q(    <dc:identifier id="BookId">#{@producer.config['isbn']}</dc:identifier>\n)
  end

  # creator (should be array)
  %w[a-adp a-ann a-arr a-art a-asn a-aqt a-aft a-aui a-ant a-bkp a-clb a-cmm a-csl a-dsr a-edt a-ill a-lyr a-mdc a-mus a-nrt a-oth a-pht a-prt a-red a-rev a-spn a-ths a-trc a-trl aut].each do |role|
    next unless @producer.config[role]
    @producer.config[role].each_with_index do |v, i|
      if v.is_a?(Hash)
        s << %Q(    <dc:creator id="#{role}-#{i}">#{CGI.escapeHTML(v['name'])}</dc:creator>\n)
        s << %Q(    <meta refines="##{role}-#{i}" property="role" scheme="marc:relators">#{role.sub('a-', '')}</meta>\n)
        v.each_pair do |name, val|
          next if name == 'name'
          s << %Q(    <meta refines="##{role.sub('a-', '')}-#{i}" property="#{name}">#{CGI.escapeHTML(val)}</meta>\n)
        end
      else
        s << %Q(    <dc:creator id="#{role}-#{i}">#{CGI.escapeHTML(v)}</dc:creator>\n)
        s << %Q(    <meta refines="##{role}-#{i}" property="role" scheme="marc:relators">#{role.sub('a-', '')}</meta>\n)
      end
    end
  end

  # contributor (should be array)
  %w[adp ann arr art asn aqt aft aui ant bkp clb cmm csl dsr edt ill lyr mdc mus nrt oth pbd pbl pht prt red rev spn ths trc trl].each do |role|
    next unless @producer.config[role]
    @producer.config[role].each_with_index do |v, i|
      if v.is_a?(Hash)
        s << %Q(    <dc:contributor id="#{role}-#{i}">#{CGI.escapeHTML(v['name'])}</dc:contributor>\n)
        s << %Q(    <meta refines="##{role}-#{i}" property="role" scheme="marc:relators">#{role}</meta>\n)
        v.each_pair do |name, val|
          next if name == 'name'
          s << %Q(    <meta refines="##{role}-#{i}" property="#{name}">#{CGI.escapeHTML(val)}</meta>\n)
        end
      else
        s << %Q(    <dc:contributor id="#{role}-#{i}">#{CGI.escapeHTML(v)}</dc:contributor>\n)
        s << %Q(    <meta refines="##{role}-#{i}" property="role" scheme="marc:relators">#{role}</meta>\n)
      end

      if %w[prt pbl].include?(role)
        if v.is_a?(Hash)
          s << %Q(    <dc:publisher id="pub-#{role}-#{i}">#{CGI.escapeHTML(v['name'])}</dc:publisher>\n)
          s << %Q(    <meta refines="#pub-#{role}-#{i}" property="role" scheme="marc:relators">#{role}</meta>\n)
          v.each_pair do |name, val|
            next if name == 'name'
            s << %Q(    <meta refines="#pub-#{role}-#{i}" property="#{name}">#{CGI.escapeHTML(val)}</meta>\n)
          end
        else
          s << %Q(    <dc:publisher id="pub-#{role}-#{i}">#{CGI.escapeHTML(v)}</dc:publisher>\n)
          s << %Q(    <meta refines="#pub-#{role}-#{i}" property="role" scheme="marc:relators">prt</meta>\n)
        end
      end
    end
  end

  ## add custom <meta> element
  if @producer.config['opf_meta'].present?
    @producer.config['opf_meta'].each do |k, v|
      s << %Q(    <meta property="#{k}">#{CGI.escapeHTML(v)}</meta>\n)
    end
  end

  s
end

#opf_tocx ⇒ Object 



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# File 'lib/epubmaker/epubv3.rb', line 169

def opf_tocx
  if @producer.config['epubmaker']['cover_linear'] && @producer.config['epubmaker']['cover_linear'] != 'no'
    cover_linear = 'yes'
  else
    cover_linear = 'no'
  end

  s = ''
  if @producer.config['direction']
    s << %Q(  <spine page-progression-direction="#{@producer.config['direction']}">\n)
  else
    s << %Q(  <spine>\n)
  end
  s << %Q(    <itemref idref="#{@producer.config['bookname']}" linear="#{cover_linear}"/>\n)

  toc = nil
  @producer.contents.each do |item|
    next if item.media !~ /xhtml\+xml/ # skip non XHTML
    if toc.nil? && item.chaptype != 'pre'
      if @producer.config['toc']
        s << %Q(    <itemref idref="#{@producer.config['bookname']}-toc.#{@producer.config['htmlext']}" />\n)
      end
      toc = true
    end
    s << %Q(    <itemref idref="#{item.id}"/>\n)
  end
  s << %Q(  </spine>\n)

  s
end

#produce(epubfile, basedir, tmpdir) ⇒ Object

Produce EPUB file epubfile. basedir points the directory has contents. tmpdir defines temporary directory.



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# File 'lib/epubmaker/epubv3.rb', line 223

def produce(epubfile, basedir, tmpdir)
  produce_write_common(basedir, tmpdir)

  File.open("#{tmpdir}/OEBPS/#{@producer.config['bookname']}-toc.#{@producer.config['htmlext']}", 'w') { |f| @producer.ncx(f, @producer.config['epubmaker']['ncxindent']) }

  @producer.call_hook(@producer.config['epubmaker']['hook_prepack'], tmpdir)
  expoter = EPUBMaker::ZipExporter.new(tmpdir, @producer.config)
  expoter.export_zip(epubfile)
end