blob: 95ef8810017b26621f753de2530afaf23c8d7340 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
module Banzai
module Filter
# HTML filter to support rich references in links.
#
# Appends information on the link text depending on the verbosity
# level. It is expected to run in a post-processing pipeline.
class RichReferenceFilter < HTML::Pipeline::Filter
VERBOSITY_CHAR = '+'
def call
links.each do |link|
handle_reference_verbosity_for(link)
end
doc
end
private
def links
@links ||= doc.css('a[data-rich-ref-verbosity]')
end
def handle_reference_verbosity_for(link)
verbosity = link.attr('data-rich-ref-verbosity').to_i
if verbosity > 0
link.content = "#{link.text} #{link.attr('title')}"
end
if verbosity > 1
# We support up to 3 levels of verbosity, but for now we implement
# only 1. Restore the missing '+' characters.
# This will not be needed if we support verbosity up to 3.
missing = VERBOSITY_CHAR * (verbosity - 1)
link.add_next_sibling(missing)
end
end
end
end
end
|
