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annotate vendor/gems/coderay-1.0.0/lib/coderay/encoders/html/output.rb @ 1022:f2ec92061fca browsing

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Merge from live branch
author Chris Cannam <chris.cannam@soundsoftware.ac.uk>
date Tue, 13 Nov 2012 10:35:40 +0000
parents cbb26bc654de
children
rev   line source
Chris@909 1 module CodeRay
Chris@909 2 module Encoders
Chris@909 3
Chris@909 4 class HTML
Chris@909 5
Chris@909 6 # This module is included in the output String of the HTML Encoder.
Chris@909 7 #
Chris@909 8 # It provides methods like wrap, div, page etc.
Chris@909 9 #
Chris@909 10 # Remember to use #clone instead of #dup to keep the modules the object was
Chris@909 11 # extended with.
Chris@909 12 #
Chris@909 13 # TODO: Rewrite this without monkey patching.
Chris@909 14 module Output
Chris@909 15
Chris@909 16 attr_accessor :css
Chris@909 17
Chris@909 18 class << self
Chris@909 19
Chris@909 20 # Raises an exception if an object that doesn't respond to to_str is extended by Output,
Chris@909 21 # to prevent users from misuse. Use Module#remove_method to disable.
Chris@909 22 def extended o # :nodoc:
Chris@909 23 warn "The Output module is intended to extend instances of String, not #{o.class}." unless o.respond_to? :to_str
Chris@909 24 end
Chris@909 25
Chris@909 26 def make_stylesheet css, in_tag = false # :nodoc:
Chris@909 27 sheet = css.stylesheet
Chris@909 28 sheet = <<-'CSS' if in_tag
Chris@909 29 <style type="text/css">
Chris@909 30 #{sheet}
Chris@909 31 </style>
Chris@909 32 CSS
Chris@909 33 sheet
Chris@909 34 end
Chris@909 35
Chris@909 36 def page_template_for_css css # :nodoc:
Chris@909 37 sheet = make_stylesheet css
Chris@909 38 PAGE.apply 'CSS', sheet
Chris@909 39 end
Chris@909 40
Chris@909 41 end
Chris@909 42
Chris@909 43 def wrapped_in? element
Chris@909 44 wrapped_in == element
Chris@909 45 end
Chris@909 46
Chris@909 47 def wrapped_in
Chris@909 48 @wrapped_in ||= nil
Chris@909 49 end
Chris@909 50 attr_writer :wrapped_in
Chris@909 51
Chris@909 52 def wrap_in! template
Chris@909 53 Template.wrap! self, template, 'CONTENT'
Chris@909 54 self
Chris@909 55 end
Chris@909 56
Chris@909 57 def apply_title! title
Chris@909 58 self.sub!(/(<title>)(<\/title>)/) { $1 + title + $2 }
Chris@909 59 self
Chris@909 60 end
Chris@909 61
Chris@909 62 def wrap! element, *args
Chris@909 63 return self if not element or element == wrapped_in
Chris@909 64 case element
Chris@909 65 when :div
Chris@909 66 raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil
Chris@909 67 wrap_in! DIV
Chris@909 68 when :span
Chris@909 69 raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? nil
Chris@909 70 wrap_in! SPAN
Chris@909 71 when :page
Chris@909 72 wrap! :div if wrapped_in? nil
Chris@909 73 raise "Can't wrap %p in %p" % [wrapped_in, element] unless wrapped_in? :div
Chris@909 74 wrap_in! Output.page_template_for_css(@css)
Chris@909 75 if args.first.is_a?(Hash) && title = args.first[:title]
Chris@909 76 apply_title! title
Chris@909 77 end
Chris@909 78 self
Chris@909 79 when nil
Chris@909 80 return self
Chris@909 81 else
Chris@909 82 raise "Unknown value %p for :wrap" % element
Chris@909 83 end
Chris@909 84 @wrapped_in = element
Chris@909 85 self
Chris@909 86 end
Chris@909 87
Chris@909 88 def stylesheet in_tag = false
Chris@909 89 Output.make_stylesheet @css, in_tag
Chris@909 90 end
Chris@909 91
Chris@909 92 #-- don't include the templates in docu
Chris@909 93
Chris@909 94 class Template < String # :nodoc:
Chris@909 95
Chris@909 96 def self.wrap! str, template, target
Chris@909 97 target = Regexp.new(Regexp.escape("<%#{target}%>"))
Chris@909 98 if template =~ target
Chris@909 99 str[0,0] = $`
Chris@909 100 str << $'
Chris@909 101 else
Chris@909 102 raise "Template target <%%%p%%> not found" % target
Chris@909 103 end
Chris@909 104 end
Chris@909 105
Chris@909 106 def apply target, replacement
Chris@909 107 target = Regexp.new(Regexp.escape("<%#{target}%>"))
Chris@909 108 if self =~ target
Chris@909 109 Template.new($` + replacement + $')
Chris@909 110 else
Chris@909 111 raise "Template target <%%%p%%> not found" % target
Chris@909 112 end
Chris@909 113 end
Chris@909 114
Chris@909 115 end
Chris@909 116
Chris@909 117 SPAN = Template.new '<span class="CodeRay"><%CONTENT%></span>'
Chris@909 118
Chris@909 119 DIV = Template.new <<-DIV
Chris@909 120 <div class="CodeRay">
Chris@909 121 <div class="code"><pre><%CONTENT%></pre></div>
Chris@909 122 </div>
Chris@909 123 DIV
Chris@909 124
Chris@909 125 TABLE = Template.new <<-TABLE
Chris@909 126 <table class="CodeRay"><tr>
Chris@909 127 <td class="line-numbers" title="double click to toggle" ondblclick="with (this.firstChild.style) { display = (display == '') ? 'none' : '' }"><pre><%LINE_NUMBERS%></pre></td>
Chris@909 128 <td class="code"><pre><%CONTENT%></pre></td>
Chris@909 129 </tr></table>
Chris@909 130 TABLE
Chris@909 131
Chris@909 132 PAGE = Template.new <<-PAGE
Chris@909 133 <!DOCTYPE html>
Chris@909 134 <html>
Chris@909 135 <head>
Chris@909 136 <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
Chris@909 137 <title></title>
Chris@909 138 <style type="text/css">
Chris@909 139 .CodeRay .line-numbers a {
Chris@909 140 text-decoration: inherit;
Chris@909 141 color: inherit;
Chris@909 142 }
Chris@909 143 <%CSS%>
Chris@909 144 </style>
Chris@909 145 </head>
Chris@909 146 <body style="background-color: white;">
Chris@909 147
Chris@909 148 <%CONTENT%>
Chris@909 149 </body>
Chris@909 150 </html>
Chris@909 151 PAGE
Chris@909 152
Chris@909 153 end
Chris@909 154
Chris@909 155 end
Chris@909 156
Chris@909 157 end
Chris@909 158 end