Class: Pocketbook::PdfDocument

Inherits:
Object
  • Object
show all
Defined in:
lib/pocketbook/pdf_document.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(document:) ⇒ PdfDocument

Returns a new instance of PdfDocument.



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# File 'lib/pocketbook/pdf_document.rb', line 9

def initialize(document:)
  @document = document
end

Class Method Details

.open(path) ⇒ Object 



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# File 'lib/pocketbook/pdf_document.rb', line 5

def self.open(path)
  new(document: HexaPDF::Document.open(path))
end

Instance Method Details

#named_destinations ⇒ Object 



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# File 'lib/pocketbook/pdf_document.rb', line 34

def named_destinations
  {}.tap do |output|
    extract_old_style_destinations(output)
    extract_name_tree_destinations(output)
  end
end

#page_count ⇒ Object 



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# File 'lib/pocketbook/pdf_document.rb', line 13

def page_count
  @document.pages.count
end

#toc_page_numbers(anchor_ids) ⇒ Object 



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# File 'lib/pocketbook/pdf_document.rb', line 17

def toc_page_numbers(anchor_ids)
  return {} if anchor_ids.empty?

  page_number_by_reference = extract_page_numbers
  destination_reference_by_id = named_destinations

  anchor_ids.each_with_object({}) do |anchor_id, output|
    page_reference = destination_reference_by_id[anchor_id]
    next if page_reference.nil?

    page_number = page_number_by_reference[page_reference]
    next if page_number.nil?

    output[anchor_id] = page_number
  end
end