Class: Repub::Epub::Content

Inherits:
Object show all
Defined in:
lib/repub/epub/content.rb

Defined Under Namespace

Classes: ContentItem, Metadata

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(uid) ⇒ Content

Returns a new instance of Content.



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# File 'lib/repub/epub/content.rb', line 9

def initialize(uid)
  @metadata = Metadata.new('Untitled', 'en', uid, Date.today.to_s)
  @css_counter = 0
  @img_counter = 0
  @html_counter = 0
  @manifest_items = []
  @spine_items = []
  @manifest_items << ContentItem.new('ncx', 'toc.ncx', 'application/x-dtbncx+xml')
end

Instance Attribute Details

#metadata ⇒ Object (readonly)

Returns the value of attribute metadata.



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# File 'lib/repub/epub/content.rb', line 33

def metadata
  @metadata
end

Instance Method Details

#add_document(href, id = nil) ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 59

def add_document(href, id = nil)
  manifest_item = ContentItem.new(id || "item_#{@html_counter += 1}", href, 'application/xhtml+xml')
  @manifest_items << manifest_item
  @spine_items << manifest_item
end

#add_image(href, id = nil) ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 43

def add_image(href, id = nil)
  image_type = case(href.strip.downcase)
    when /.*\.(jpeg|jpg)$/
      'image/jpeg'
    when /.*\.png$/
      'image/png'
    when /.*\.gif$/
      'image/gif'
    when /.*\.svg$/
      'image/svg+xml'
    else
      raise 'Unsupported image type'
  end
  @manifest_items << ContentItem.new(id || "img_#{@img_counter += 1}", href, image_type)
end

#add_page_template(href = 'page-template.xpgt', id = 'pt') ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 35

def add_page_template(href = 'page-template.xpgt', id = 'pt')
  @manifest_items << ContentItem.new(id, href, 'application/vnd.adobe-page-template+xml')
end

#add_stylesheet(href, id = nil) ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 39

def add_stylesheet(href, id = nil)
  @manifest_items << ContentItem.new(id || "css_#{@css_counter += 1}", href, 'text/css')
end

#save(path = 'content.opf') ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 79

def save(path = 'content.opf')
  File.open(path, 'w') do |f|
    f << to_xml
  end
end

#to_xml ⇒ Object 



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# File 'lib/repub/epub/content.rb', line 65

def to_xml
  out = ''
  builder = Builder::XmlMarkup.new(:target => out, :indent => 4)
  builder.instruct!
  builder.package :xmlns => "http://www.idpf.org/2007/opf",
      'unique-identifier' => "dcidid",
      'version' => "2.0" do
    metadata_to_xml(builder)
    manifest_to_xml(@manifest_items, builder)
    spine_to_xml(@spine_items, builder)
  end
  out
end