Chris@909: # The PluginList class is an array, enhanced to allow access to loaded plugins
Chris@909: # by name, and iteration over loaded plugins in order of priority. This array is used
Chris@909: # by Engines::RailsExtensions::RailsInitializer to create the Engines.plugins array.
Chris@909: #
Chris@909: # Each loaded plugin has a corresponding Plugin instance within this array, and 
Chris@909: # the order the plugins were loaded is reflected in the entries in this array.
Chris@909: #
Chris@909: # For more information, see the Rails module.
Chris@909: module Engines
Chris@909:   class Plugin
Chris@909:     class List < Array
Chris@909:       # Finds plugins with the set with the given name (accepts Strings or Symbols), or
Chris@909:       # index. So, Engines.plugins[0] returns the first-loaded Plugin, and Engines.plugins[:engines]
Chris@909:       # returns the Plugin instance for the engines plugin itself.
Chris@909:       def [](name_or_index)
Chris@909:         if name_or_index.is_a?(Fixnum)
Chris@909:           super
Chris@909:         else
Chris@909:           self.find { |plugin| plugin.name.to_s == name_or_index.to_s }
Chris@909:         end
Chris@909:       end
Chris@909:   
Chris@909:       # Go through each plugin, highest priority first (last loaded first). Effectively,
Chris@909:       # this is like <tt>Engines.plugins.reverse</tt>
Chris@909:       def by_precedence
Chris@909:         reverse
Chris@909:       end
Chris@909:     end
Chris@909:   end
Chris@909: end