Module: Asciidoctor::Html::Pagination

Included in:
Book
Defined in:
lib/asciidoctor/html/pagination.rb

Overview

Mixin to add pagination support to Book class

Defined Under Namespace

Classes: PagItem

Instance Method Summary collapse

Instance Method Details

#display_paginator(prv, nxt) ⇒ Object 



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# File 'lib/asciidoctor/html/pagination.rb', line 10

def display_paginator(prv, nxt)
  return "" unless prv || nxt

  "    <div class=\"paginator-wrapper\">\n    <div class=\"d-inline-block\">\n    <div class=\"paginator\">\n      \#{%(<a href=\"\#{prv.url}\">&laquo; \#{prv.title}</a>) if prv}\n      \#{%(<span class=\"blank\">&nbsp;</span>) unless prv && nxt}\n      \#{%(<a href=\"\#{nxt.url}\">\#{nxt.title} &raquo;</a>) if nxt}\n    </div>\n    </div>\n    </div>\n  HTML\nend\n"

#pagination(key = -1)) ⇒ Object 



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# File 'lib/asciidoctor/html/pagination.rb', line 43

def pagination(key = -1)
  keys = @refs.keys
  idx = keys.find_index key
  return "" unless idx

  prv_nxt keys, idx
end

#prv_nxt(keys, idx) ⇒ Object 



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# File 'lib/asciidoctor/html/pagination.rb', line 26

def prv_nxt(keys, idx)
  pagitems = []
  [idx - 1, idx + 1].each do |i|
    if i.between?(0, keys.size - 1)
      key = keys[i]
      ref = @refs[key]
      pagitems << PagItem.new(
        url: "#{key}.html",
        title: ref["chapref"]
      )
    else
      pagitems << nil
    end
  end
  display_paginator(*pagitems)
end