Class: MagicShelf::EpubGenerator

Inherits:
Object
  • Object
show all
Defined in:
lib/magicshelf/epubgenerator.rb

Overview

create a epub file with the file under the current directory

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#book_type ⇒ Object

Returns the value of attribute book_type.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def book_type
  @book_type
end

#creator ⇒ Object

Returns the value of attribute creator.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def creator
  @creator
end

#creator_en ⇒ Object

Returns the value of attribute creator_en.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def creator_en
  @creator_en
end

#identifier_url ⇒ Object

Returns the value of attribute identifier_url.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def identifier_url
  @identifier_url
end

#language ⇒ Object

Returns the value of attribute language.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def language
  @language
end

#outputfile ⇒ Object

Returns the value of attribute outputfile.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def outputfile
  @outputfile
end

#title ⇒ Object

Returns the value of attribute title.



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# File 'lib/magicshelf/epubgenerator.rb', line 11

def title
  @title
end

Instance Method Details

#enter ⇒ Object

Raises:



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# File 'lib/magicshelf/epubgenerator.rb', line 13

def enter()
  MagicShelf.logger.debug('enter EpubGenerator')
  # check parameters
  raise MagicShelf::EpubGeneratorError.new("@title is not set") if @title == nil
  raise MagicShelf::EpubGeneratorError.new("@outputfile is not set") if @outputfile == nil
  # default parameters
  @book_type      ||= 'comic'
  @language       ||= 'ja'
  @identifier_url ||= 'http:/example.jp/bookid_in_url'

  yield
end

#process ⇒ Object 



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# File 'lib/magicshelf/epubgenerator.rb', line 26

def process()
  epubname = @outputfile

  book = GEPUB::Book.new
  book.unique_identifier @identifier_url
  book.identifier @identifier_url
  book.language = @language


  book.add_title(@title, nil, GEPUB::TITLE_TYPE::MAIN) { |title|
    title.lang = @language
    title.file_as = Shellwords.escape(@title)
    title.display_seq = 1
  }
  if @creator
    book.add_creator(@creator) { |creator|
      creator.display_seq = 1
      creator.add_alternates('en' => @creator_en) if @creator_en
    }
  end

  if @book_type == "comic"
    book.page_progression_direction = 'rtl'
    metadata = book.instance_eval{@package}.instance_eval{@metadata}
    metacomic = metadata.add_metadata('meta', '')
    metacomic['name'] = 'book-type'
    metacomic['content'] = 'comic'
    metafixedlayout = metadata.add_metadata('meta', '')
    metafixedlayout['name'] = 'fixed-layout'
    metafixedlayout['content'] = 'true'
  elsif @book_type == "novelimage"
    book.page_progression_direction = 'rtl'
    metadata = book.instance_eval{@package}.instance_eval{@metadata}
    metafixedlayout = metadata.add_metadata('meta', '')
    metafixedlayout['name'] = 'fixed-layout'
    metafixedlayout['content'] = 'true'
  elsif @book_type == "novel"
    book.page_progression_direction = 'rtl'
    #nothing to do
  elsif @book_type == "ltr"
    book.page_progression_direction = 'ltr'
  end
  
  # within ordered block, add_item will be added to spine.
  book.ordered {
    # to add nav file:
    #navpath = 'nav.xhtml'
    #book.add_item(navpath).add_content(File.open(navpath)).add_property('nav')
    Naturally.sort(Dir.glob('**/*.{jpg,png}')).each_with_index do |filepath,index|
      MagicShelf.logger.info("append image #{filepath}, index: #{index}")
      item = book.add_item(filepath)
      item.add_content(File.open(filepath)).toc_text(index.to_s)
      item.cover_image if index == 0
    end
  }

  book.generate_epub(epubname)
end