blob: 6ab29ac281f6cc94bd14633643fd3ee426784eba (
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
|
module Banzai
module Filter
# HTML filter that renders `color` followed by a color "chip".
#
class ColorFilter < HTML::Pipeline::Filter
COLOR_CHIP_CLASS = 'gfm-color_chip'.freeze
def call
doc.css('code').each do |node|
color = ColorParser.parse(node.content)
node << color_chip(color) if color
end
doc
end
private
def color_chip(color)
checkerboard = doc.document.create_element('span', class: COLOR_CHIP_CLASS)
chip = doc.document.create_element('span', style: inline_styles(color: color))
checkerboard << chip
end
def inline_styles(color:)
"background-color: #{color};"
end
end
end
end
|