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
|
require "action_view"
module Sprockets
module Helpers
module RailsHelper
extend ActiveSupport::Concern
include ActionView::Helpers::AssetTagHelper
def asset_paths
@asset_paths ||= begin
config = self.config if respond_to?(:config)
config ||= Rails.application.config
controller = self.controller if respond_to?(:controller)
paths = RailsHelper::AssetPaths.new(config, controller)
paths.asset_environment = asset_environment
paths.asset_prefix = asset_prefix
paths.asset_digests = asset_digests
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
sources.collect do |source|
if debug && asset = asset_paths.asset_for(source, 'js')
asset.to_a.map { |dep|
super(dep.to_s, { :src => asset_path(dep, 'js', true) }.merge!(options))
}
else
super(source.to_s, { :src => asset_path(source, 'js', body) }.merge!(options))
end
end.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
sources.collect do |source|
if debug && asset = asset_paths.asset_for(source, 'css')
asset.to_a.map { |dep|
super(dep.to_s, { :href => asset_path(dep, 'css', true, :request) }.merge!(options))
}
else
super(source.to_s, { :href => asset_path(source, 'css', body, :request) }.merge!(options))
end
end.join("\n").html_safe
end
def asset_path(source, default_ext = nil, body = false, protocol = nil)
source = source.logical_path if source.respond_to?(:logical_path)
path = asset_paths.compute_public_path(source, 'assets', default_ext, true, protocol)
body ? "#{path}?body=1" : path
end
private
def debug_assets?
begin
config = Rails.application.config.assets
config.compile && (config.debug || params[:debug_assets])
rescue NoMethodError
false
end
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
# 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
class AssetNotPrecompiledError < StandardError; end
def compute_public_path(source, dir, ext=nil, include_host=true, protocol=nil)
super(source, asset_prefix, ext, include_host, protocol)
end
# Return the filesystem path for the source
def compute_source_path(source, ext)
asset_for(source, ext)
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]
end
def digest_for(logical_path)
if asset_digests && (digest = asset_digests[logical_path])
return digest
end
if Rails.application.config.assets.compile
if 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)
if source[0] == ?/
source
else
source = digest_for(source) if Rails.application.config.assets.digest
source = File.join(dir, source)
source = "/#{source}" unless source =~ /^\//
source
end
end
def rewrite_extension(source, dir, ext)
if ext && File.extname(source).empty?
"#{source}.#{ext}"
else
source
end
end
end
end
end
end
|
