Module: AssetsBooster::Mixin::Css

Includes:
Url
Included in:
AssetsBooster::Merger::CSS, Package::Stylesheet
Defined in:
lib/assets_booster/mixin/css.rb

Instance Method Summary collapse

Methods included from Url

#absolute_url?, #external_url?, #path_difference

Instance Method Details

#adjust_relative_urls(css, source_folder, target_folder) ⇒ Object 



11
12
13
14
15
16
17
18
19
20
21
22
23
 
# File 'lib/assets_booster/mixin/css.rb', line 11

def adjust_relative_urls(css, source_folder, target_folder)
  url_prepend = path_difference(source_folder, target_folder)
  return css if url_prepend == ""
  
  css.gsub(/url\(([^)]+)\)/i) do |match|
    url, quotes = unquote($1.strip)

    # we don't want to change references to absolute & external assets
    next match if absolute_url?(url) || external_url?(url) 

    "url(#{quotes}#{url_prepend}/#{url}#{quotes})"
  end
end

#hostify_urls(base_url, css) ⇒ Object 



25
26
27
28
29
30
31
32
33
34
35
 
# File 'lib/assets_booster/mixin/css.rb', line 25

def hostify_urls(base_url, css)
  css.gsub(/url\(([^)]+)\)/i) do |match|
    url, quotes = unquote($1.strip)

    # we don't want to change references to external assets
    next match if external_url?(url)

    url = url[1..-1] if url[0].chr == "/"
    "url(#{quotes}#{base_url}/#{url}#{quotes})"
  end
end

#unquote(quoted) ⇒ Object 



7
8
9
 
# File 'lib/assets_booster/mixin/css.rb', line 7

def unquote(quoted)
  (quoted[0].chr =~ /["']/) ? [quoted.slice(1, quoted.length-2), quoted[0].chr] : [quoted, ""]
end