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@@ -1,5 +1,21 @@
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+require File.dirname(__FILE__) + '/link_and_indent_helpers'
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+
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 module Headerize
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+  # Includes helpers for placing javascript in the head of a page while still
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+  # allowing the addition of scripts in any template file.
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+  #
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+  # See the main README for more information. +add_javascript+ is the main
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+  # interface, used to add scripts to the list of includes anywhere. Then,
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+  # +javascript_includes+ can be used to retrieve the full list of links to
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+  # place in the head of the page (probably in a layout file).
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   module JavascriptHelper
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+    include LinkAndIndentHelpers
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+
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+    # Adds all given javascript files to the list of javascript include tags
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+    # that will be returned by +javascript_includes+. See the
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+    # +javascript_include_tag+ documentation for more on what arguments can be
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+    # passed (an invocation to +add_javascript+ can be exactly the same as one
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+    # to +javascript_include_tag+).
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     def add_javascript(*args)
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       @javascripts ||= []
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       @javascripts << args
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@@ -7,22 +23,13 @@ module Headerize
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       nil
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     end
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+    # Returns all Javascript includes added by +add_javascript+. These includes
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+    # are indented by 4 spaces by default. Pass the <tt>:indent</tt> option with
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+    # a different number for a different indentation level.
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     def javascript_includes(opts = {})
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-      return '' if @javascripts.nil?
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-
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-      includes = @javascripts.inject('') do |str, files_and_opts|
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-        str << javascript_include_tag(*files_and_opts)
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-      end
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-
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-      indent(includes, opts[:indent] || 4)
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+      collect_and_indent @javascripts, :javascript_include_tag,
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+                         opts[:indent] || 4
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     end
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-
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-    private
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-      # Indents the given string by the given amount. Does not indent the first
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-      # line.
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-      def indent(string, amt)
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-        string.gsub /\n *([^\n]+)/m, "\n#{' ' * amt}\\1"
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-      end
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   end
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 end
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@@ -1,5 +1,20 @@
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+require File.dirname(__FILE__) + '/link_and_indent_helpers'
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+
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 module Headerize
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+  # Includes helpers for placing stylesheets in the head of a page while still
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+  # allowing the addition of stylesheets in any template file.
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+  #
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+  # See the main README for more information. +add_stylesheet+ is the main
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+  # interface, used to add stylesheets to the list of links anywhere. Then,
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+  # +stylesheet_links+ can be used to retrieve the full list of links to place
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+  # in the head of the page (probably in a layout file).
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   module StylesheetHelper
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+    include LinkAndIndentHelpers
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+
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+    # Adds all given stylesheets to the list of stylesheet link tags that will
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+    # be returned by +stylesheet_links+. See the +stylesheet_link_tag+
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+    # documentation for more on what arguments can be passed (an invocation to
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+    # +add_stylesheet+ can be exactly the same as one to +stylesheet_link_tag+).
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     def add_stylesheet(*args)
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       @stylesheets ||= []
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       @stylesheets << args
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@@ -7,22 +22,13 @@ module Headerize
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       nil
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     end
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+    # Returns all stylesheet links added by +add_stylesheet+. These links are
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+    # indented by 4 spaces by default. Pass the <tt>:indent</tt> option with a
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+    # different number for a different indentation level.
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     def stylesheet_links(opts = {})
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-      return '' if @stylesheets.nil?
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-
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-      links = @stylesheets.inject('') do |str, files_and_opts|
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-        str << stylesheet_link_tag(*files_and_opts)
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-      end
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-
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-      indent(links, opts[:indent] || 4)
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+      collect_and_indent @stylesheets, :stylesheet_link_tag,
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+                         opts[:indent] || 4
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     end
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-
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-    private
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-      # Indents the given string by the given amount. Does not indent the first
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-      # line.
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-      def indent(string, amt)
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-        string.gsub /\n *([^\n]+)/m, "\n#{' ' * amt}\\1"
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-      end
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   end
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 end
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