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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
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
98
99
100
101
102
103
104
105
|
require 'uri'
module ActionView
module Helpers
module SprocketsHelper
def asset_path(source, default_ext = nil)
compute_sprockets_path(source, 'assets', default_ext)
end
def sprockets_javascript_include_tag(source, options = {})
options = {
'type' => "text/javascript",
'src' => asset_path(source, 'js')
}.merge(options.stringify_keys)
content_tag 'script', "", options
end
def sprockets_stylesheet_link_tag(source, options = {})
options = {
'rel' => "stylesheet",
'type' => "text/css",
'media' => "screen",
'href' => asset_path(source, 'css')
}.merge(options.stringify_keys)
tag 'link', options
end
private
def compute_sprockets_path(source, dir, default_ext = nil)
source = source.to_s
unless source_is_a_url?(source)
add_asset_directory(source, dir)
add_default_extension(source, default_ext)
add_fingerprint(source, dir)
add_asset_host(source)
end
source
end
def add_asset_directory(source, dir)
source.replace("/#{dir}/#{source}") if source[0] != ?/
end
def add_default_extension(source, default_ext)
source.replace("#{source}.#{default_ext}") if default_ext && File.extname(source).empty?
end
def add_fingerprint(source, dir)
if source =~ /^\/#{dir}\/(.+)/
source.replace(assets.path($1, performing_caching?, dir))
end
end
def add_asset_host(source)
# When included in Sprockets::Context, there's no controller
return unless respond_to?(:controller)
host = compute_asset_host(source)
if controller.respond_to?(:request) && host && URI.parse(host).host
source.replace("#{controller.request.protocol}#{host}#{source}")
end
end
def source_is_a_url?(source)
URI.parse(source).host.present?
end
def compute_asset_host(source)
if host = config.asset_host
if host.is_a?(Proc) || host.respond_to?(:call)
case host.is_a?(Proc) ? host.arity : host.method(:call).arity
when 2
request = controller.respond_to?(:request) && controller.request
host.call(source, request)
else
host.call(source)
end
else
(host =~ /%d/) ? host % (source.hash % 4) : host
end
end
end
def assets
Rails.application.assets
end
def performing_caching?
# When included in Sprockets::Context, we need to ask the top-level config as the controller is not available
respond_to?(:config) ? config.perform_caching : Rails.application.config.action_controller.perform_caching
end
end
end
end
# FIXME: Temp hack for extending Sprockets::Context so
class Sprockets::Context
include ActionView::Helpers::SprocketsHelper
end if defined?(Sprockets)
|
