Module: Jekyll::ViewSource::Renderer

Defined in:
lib/jekyll/viewsource/renderer.rb

Constant Summary collapse

PRETTY = 
'Pretty'.freeze
PLAIN = 
'Plain'.freeze
DEFAULT_BG = 
'#808080'.freeze
CACHED = 
' (cached)'.freeze

Class Method Summary collapse

Class Method Details

.enqueue(item) ⇒ Object 



31
32
33
 
# File 'lib/jekyll/viewsource/renderer.rb', line 31

def self.enqueue(item)
  @render_queue << item
end

.first_run ⇒ Object 



27
28
29
 
# File 'lib/jekyll/viewsource/renderer.rb', line 27

def self.first_run
  @first_run
end

.prettify(source_file, type, user_css, linkback = nil) ⇒ Object 



99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
 
# File 'lib/jekyll/viewsource/renderer.rb', line 99

def self.prettify(source_file, type, user_css, linkback = nil)
  source_code = File.read(source_file)
  title = File.basename(source_file)

  if type == HTML
    source_code = HtmlBeautifier.beautify source_code
  end

  formatter = Rouge::Formatters::HTML.new
  if type == MD
    lexer = Rouge::Lexers::ViewSource.new
  else
    lexer = Rouge::Lexers::HTML.new
  end

  formatted = formatter.format(lexer.lex(source_code))

  body = "<pre>#{formatted}</pre>"

  if user_css
    if user_css =~ /^\//
      source_css = File.join(site.dest, user_css)
      css = File.read(source_css) if File.exist?(source_css)
    else
      unless theme = Rouge::Theme.find(user_css)
        theme = Rouge::Theme.find(DEFAULT_CSS)
      end
      css = theme.render(scope: CSS_SCOPE)
    end
  end

  if m = css.match(/^\.highlight {.*?background-color:\s*(.*?);/m)
    body_bg = m[1];
  else
    body_bg = DEFAULT_BG
  end

  if linkback
    (lb_url, lb_text) = linkback.split('|$|', 2)
    linkback = %Q(<div style="background-color: #fff; color: #000; padding: 5px;" class="viewsource-linkback">&laquo; <a href=").freeze + %Q(#{lb_url}">#{lb_text}) + '</a></div>'.freeze

  end

  # TODO: External template file
  <<-HTML
<!DOCTYPE html>
<html>
  <head>
    <title>#{title}</title>
    <style>
    #{css}
    </style>
  </head>
  <body style="background-color: #{body_bg};" class="viewsource-body">
   <div class="highlight">
#{body}
#{linkback}
   </div>
  </body>
</html>
HTML

end

.render_items(site) ⇒ Object 



35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
 
# File 'lib/jekyll/viewsource/renderer.rb', line 35

def self.render_items(site)
  @render_queue.each do |item|
    pretty = item.data.delete(PRETTY_PROP)
    linkback = item.data.delete(LINKBACK_PROP)

    if md_file = item.data.delete(MD_FILE_PROP)
      render_source(site, item, md_file, MD, pretty, linkback)
    end

    if html_file = item.data.delete(HTML_FILE_PROP)
      render_source(site, item, html_file, HTML, pretty, linkback)
    end

    if @first_run
      ViewSource.debug item, "Set CSS to #{pretty}" if pretty
      ViewSource.debug item, "Set linkback text to #{linkback}" if linkback
    end
  end

  @render_queue.clear
  @first_run = false
end

.render_source(site, item, file_url, ext, pretty = nil, linkback = nil) ⇒ Object 



58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
 
# File 'lib/jekyll/viewsource/renderer.rb', line 58

def self.render_source(site, item, file_url, ext, pretty = nil, linkback = nil)
  return unless file_url

  source_link = file_url +
    ( pretty ? INFIXED_HTML : INFIXED_TXT)

  dest_file = File.join(site.dest, source_link)
  source_md = Utils.source_file(item)

  source_file = (ext == MD ? source_md :
    File.join(site.dest, file_url))

  if Cache.modified?(source_md, dest_file)
    FileUtils.mkdir_p Pathname(dest_file).dirname

    if pretty
      File.write(dest_file, prettify(source_file, ext, pretty, linkback))
    else
      if ext == MD
        FileUtils.cp source_file, dest_file
      else
        # Prettify it as text a bit, anyway
        source_code = HtmlBeautifier.beautify File.read(source_file)
        File.write(dest_file, source_code)
      end
    end

    Cache.contents(source_md, dest_file, File.read(dest_file))

  else
    cached = CACHED
    File.write(dest_file, Cache.contents(source_md, dest_file))
  end

  if @first_run || !cached
    ViewSource.debug item, (pretty ? PRETTY : PLAIN) +
      " #{ext}: #{source_link}#{cached}"
 end

end