lib/sprockets/helpers.rb in sprockets-helpers-0.7.2 vs lib/sprockets/helpers.rb in sprockets-helpers-0.8.0

@@ -1,9 +1,10 @@
 require 'sprockets'
 require 'sprockets/helpers/version'
 require 'sprockets/helpers/base_path'
 require 'sprockets/helpers/asset_path'
+require 'sprockets/helpers/expanded_asset_paths'
 require 'sprockets/helpers/file_path'
 require 'sprockets/helpers/manifest_path'
 require 'uri'
 
 module Sprockets
@@ -13,10 +14,13 @@
       attr_accessor :asset_host
 
       # When true, the asset paths will return digest paths.
       attr_accessor :digest
 
+      # When true, expand assets.
+      attr_accessor :expand
+
       # Set the Sprockets environment to search for assets.
       # This defaults to the context's #environment method.
       attr_accessor :environment
 
       # The manifest file used for lookup
@@ -118,17 +122,45 @@
         return Helpers::ManifestPath.new(uri, Helpers.manifest.assets[uri.path], options).to_s
       end
 
       # If the source points to an asset in the Sprockets
       # environment use AssetPath to generate the full path.
+      # With expand, return array of paths of assets required by asset.
       assets_environment.resolve(uri.path) do |path|
-        return Helpers::AssetPath.new(uri, assets_environment[path], options).to_s
+        asset = assets_environment[path]
+        if options[:expand]
+          return Helpers::ExpandedAssetPaths.new(uri, asset, options).to_a
+        else
+          return Helpers::AssetPath.new(uri, asset, options).to_s
+        end
       end
 
       # Use FilePath for normal files on the file system
       return Helpers::FilePath.new(uri, options).to_s
     end
     alias_method :path_to_asset, :asset_path
+
+    def asset_tag(source, options = {}, &block)
+      raise ::ArgumentError, 'block missing' unless block
+      path = asset_path source, { :expand => Helpers.expand }.merge(options)
+      if options[:expand] && path.kind_of?(Array)
+        return path.map(&block).join()
+      else
+        yield path
+      end
+    end
+
+    def javascript_tag(source, options = {})
+      asset_tag(source, { :ext => 'js' }.merge(options)) do |path|
+        %Q(<script src="#{path}"></script>)
+      end
+    end
+
+    def stylesheet_tag(source, options = {})
+      asset_tag(source, { :ext => 'css' }.merge(options)) do |path|
+        %Q(<link rel="stylesheet" href="#{path}">)
+      end
+    end
 
     # Computes the path to a audio asset either in the Sprockets environment
     # or the public directory. External URIs are untouched.
     #
     # ==== Examples