155 lines
4.1 KiB
Ruby
155 lines
4.1 KiB
Ruby
require 'tmpdir'
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require 'digest/md5'
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require File.dirname(__FILE__) + '/helper.rb'
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module Jekyll
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module PDF
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class Partial
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extend Forwardable
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include Helper
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attr_accessor :doc
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attr_accessor :partial
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attr_accessor :write
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attr_accessor :content, :ext
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attr_writer :output
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def_delegators :@doc, :site, :name, :ext, :relative_path, :extname,
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:render_with_liquid?, :collection, :related_posts
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# Initialize this Partial instance.
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#
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# doc - The Document.
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#
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# Returns the new Partial.
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def initialize(doc, partial)
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self.doc = doc
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self.partial = partial
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self.content = build_partial(partial)
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end
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# Fetch YAML front-matter data from related doc, without layout key
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#
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# Returns Hash of doc data
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def data
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@data ||= doc.data.dup
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@data.delete('layout')
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@data
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end
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def trigger_hooks(*); end
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def path
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File.join(doc.path, partial)
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end
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def id
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File.basename(path, File.extname(path)) + '-' + Digest::MD5.hexdigest(to_s) + File.extname(path)
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end
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# Returns the cache directory
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def dir
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@dir ||= cache_dir
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end
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def to_s
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output || content
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end
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def to_liquid
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doc.data[partial] = nil
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@to_liquid ||= doc.to_liquid
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doc.data[partial] = self
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@to_liquid
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end
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# Returns the shorthand String identifier of this doc.
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def inspect
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"<Partial: #{id}>"
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end
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def output
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@output ||= Renderer.new(doc.site, self, site.site_payload).run
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end
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# generate temp file & set output to it's path
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def write
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tempfile = File.absolute_path(File.join(dir, id))
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unless File.exist?(tempfile)
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FileUtils.mkdir_p(File.dirname(tempfile)) unless File.exist?(File.dirname(tempfile))
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fix_relative_paths
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File.open(tempfile, 'w') { |f| f.write(to_s) }
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end
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@output = tempfile
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# store path for cleanup
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site.data[:jekyll_pdf_partials] ||= []
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site.data[:jekyll_pdf_partials] << to_s
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end
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def place_in_layout?
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false
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end
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protected
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def cache_dir
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return site.config['pdf']['cache'] if !site.config['pdf'].nil? && site.config['pdf'].key?('cache')
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# Use jekyll-assets cache directory if it exists
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cache_dir = site.config['assets']['cache'] || '.asset-cache' unless site.config['assets'].nil?
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File.join(cache_dir || Dir.tmpdir, 'pdf')
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end
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# Internal: Generate partial html
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#
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# Partials are rendered same time as content is rendered.
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#
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# Returns partial html String
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def build_partial(path)
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# vars to insert into partial
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vars = %w[frompage topage page webpage section subsection subsubsection]
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doc.data['pdf'] = {}
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vars.each { |var| doc.data['pdf'][var] = "<span class='__#{var}'></span>" }
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# JavaScript to replace var placeholders with content
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script = "<script>!function(){var t={},n=document.location.search.substring(1).split('&');for(var e in n){var o=n[e].split('=',2);t[o[0]]=decodeURIComponent(o[1])}var n=#{vars};for(var e in n)for(var r=document.getElementsByClassName('__'+n[e]),a=0;a<r.length;++a)r[a].textContent=t[n[e]]}();</script>\n"
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# Parse & render
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content = File.read(File.join('_includes', path))
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# Add replacer script to body
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if content =~ /<\/body>/i
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content[/(<\/body>)/i] = script + content[/(<\/body>)/i]
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else
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Jekyll.logger.warn <<-eos
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Couldn't find <body> in #{path}. Make sure your partial is a properly formatted HTML document (including DOCTYPE) e.g.
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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</head>
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<body>
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Page {{ pdf.page }} of {{ pdf.topage }}
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</body>
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</html>
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eos
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# No body found - insert html into default template
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content = %(<!DOCTYPE html>
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<html>
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<body>
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#{output}
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#{script}
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</body>
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</html>
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)
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end
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content
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end
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end
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end
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end
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