Class: BbEPUB::Transform::NCX

Inherits:
Bookbinder::Transform
  • Object
show all
Defined in:
lib/bb-epub/transform/ncx.rb

Constant Summary collapse

DEFAULT_FILE_NAME = 
'book.ncx'

Instance Method Summary collapse

Instance Method Details

#dependencies ⇒ Object 



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# File 'lib/bb-epub/transform/ncx.rb', line 6

def dependencies
  [BbEPUB::Transform::Resources]
end

#from_map(package) ⇒ Object 



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# File 'lib/bb-epub/transform/ncx.rb', line 25

def from_map(package)
  if package.options['ncx_file'] != false
    stub_ncx(package)
    add_to_opf_manifest(package)
  end
end

#to_map(package) ⇒ Object 



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# File 'lib/bb-epub/transform/ncx.rb', line 11

def to_map(package)
  opf_doc = package.file(:opf).document('r')
  spine = opf_doc.find('opf|spine')
  if spine && ncx_id = spine['toc']
    ncx_item = opf_doc.find('opf|manifest > opf|item[id="'+ncx_id+'"]')
    ncx_path = package.make_path(ncx_item['href'])
    package.file_aliases[:ncx] = ncx_path
    package.map['resources'].delete_if { |rsrc|
      package.file_path(rsrc['path']) == ncx_path
    }
  end
end