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
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
|
require "action_view"
module Sprockets
module Helpers
module RailsHelper
extend ActiveSupport::Concern
include ActionView::Helpers::AssetTagHelper
def asset_paths
@asset_paths ||= begin
paths = RailsHelper::AssetPaths.new(config, controller)
paths.asset_environment = asset_environment
paths.asset_digests = asset_digests
paths.compile_assets = compile_assets?
paths.digest_assets = digest_assets?
paths
end
end
def javascript_include_tag(*sources)
options = sources.extract_options!
debug = options.key?(:debug) ? options.delete(:debug) : debug_assets?
body = options.key?(:body) ? options.delete(:body) : false
digest = options.key?(:digest) ? options.delete(:digest) : digest_assets?
sources.collect do |source|
if debug && asset = asset_paths.asset_for(source, 'js')
asset.to_a.map { |dep|
super(dep.pathname.to_s, { :src => path_to_asset(dep, :ext => 'js', :body => true, :digest => digest) }.merge!(options))
}
else
super(source.to_s, { :src => path_to_asset(source, :ext => 'js', :body => body, :digest => digest) }.merge!(options))
end
end.uniq.join("\n").html_safe
end
def stylesheet_link_tag(*sources)
options = sources.extract_options!
debug = options.key?(:debug) ? options.delete(:debug) : debug_assets?
body = options.key?(:body) ? options.delete(:body) : false
digest = options.key?(:digest) ? options.delete(:digest) : digest_assets?
sources.collect do |source|
if debug && asset = asset_paths.asset_for(source, 'css')
asset.to_a.map { |dep|
super(dep.pathname.to_s, { :href => path_to_asset(dep, :ext => 'css', :body => true, :protocol => :request, :digest => digest) }.merge!(options))
}
else
super(source.to_s, { :href => path_to_asset(source, :ext => 'css', :body => body, :protocol => :request, :digest => digest) }.merge!(options))
end
end.uniq.join("\n").html_safe
end
def asset_path(source, options = {})
source = source.logical_path if source.respond_to?(:logical_path)
path = asset_paths.compute_public_path(source, asset_prefix, options.merge(:body => true))
options[:body] ? "#{path}?body=1" : path
end
alias_method :path_to_asset, :asset_path # aliased to avoid conflicts with an asset_path named route
def image_path(source)
path_to_asset(source)
end
alias_method :path_to_image, :image_path # aliased to avoid conflicts with an image_path named route
def font_path(source)
path_to_asset(source)
end
alias_method :path_to_font, :font_path # aliased to avoid conflicts with an font_path named route
def javascript_path(source)
path_to_asset(source, :ext => 'js')
end
alias_method :path_to_javascript, :javascript_path # aliased to avoid conflicts with an javascript_path named route
def stylesheet_path(source)
path_to_asset(source, :ext => 'css')
end
alias_method :path_to_stylesheet, :stylesheet_path # aliased to avoid conflicts with an stylesheet_path named route
private
def debug_assets?
compile_assets? && (Rails.application.config.assets.debug || params[:debug_assets])
rescue NameError
false
end
# Override to specify an alternative prefix for asset path generation.
# When combined with a custom +asset_environment+, this can be used to
# implement themes that can take advantage of the asset pipeline.
#
# If you only want to change where the assets are mounted, refer to
# +config.assets.prefix+ instead.
def asset_prefix
Rails.application.config.assets.prefix
end
def asset_digests
Rails.application.config.assets.digests
end
def compile_assets?
Rails.application.config.assets.compile
end
def digest_assets?
Rails.application.config.assets.digest
end
# Override to specify an alternative asset environment for asset
# path generation. The environment should already have been mounted
# at the prefix returned by +asset_prefix+.
def asset_environment
Rails.application.assets
end
class AssetPaths < ::ActionView::AssetPaths #:nodoc:
attr_accessor :asset_environment, :asset_prefix, :asset_digests, :compile_assets, :digest_assets
class AssetNotPrecompiledError < StandardError; end
def asset_for(source, ext)
source = source.to_s
return nil if is_uri?(source)
source = rewrite_extension(source, nil, ext)
asset_environment[source]
rescue Sprockets::FileOutsidePaths
nil
end
def digest_for(logical_path)
if digest_assets && asset_digests && (digest = asset_digests[logical_path])
return digest
end
if compile_assets
if digest_assets && asset = asset_environment[logical_path]
return asset.digest_path
end
return logical_path
else
raise AssetNotPrecompiledError.new("#{logical_path} isn't precompiled")
end
end
def rewrite_asset_path(source, dir, options = {})
if source[0] == ?/
source
else
if digest_assets && options[:digest] != false
source = digest_for(source)
end
source = File.join(dir, source)
source = "/#{source}" unless source =~ /^\//
source
end
end
def rewrite_extension(source, dir, ext)
source_ext = File.extname(source)
if ext && source_ext != ".#{ext}"
if !source_ext.empty? && (asset = asset_environment[source]) &&
asset.pathname.to_s =~ /#{source}\Z/
source
else
"#{source}.#{ext}"
end
else
source
end
end
end
end
end
end
|
