src/website.rb

   1 #
   2 # Copyright Michael Orlitzky
   3 #
   4 # http://michael.orlitzky.com/
   5 #
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 # GNU General Public License for more details.
  15 #
  16 # http://www.fsf.org/licensing/licenses/gpl.html
  17 #
  18
  19 # This class keeps track of all its subclasses
  20 # We use this to loop through every "website" in an
  21 # attempt to determine to which site a URL belongs.
  22 class Website
  23   def self.inherited(subclass)
  24     if superclass.respond_to? :inherited
  25       superclass.inherited(subclass)
  26     end
  27
  28     # Every time we're subclassed, add the new
  29     # subclass to our list of subclasses.
  30     @subclasses ||= []
  31     @subclasses << subclass
  32   end
  33
  34   def self.subclasses
  35     @subclasses
  36   end
  37
  38   # This should be overridden in any class that wants
  39   # to claim ownership of a URL.
  40   def self.owns_url?(url)
  41     return false
  42   end
  43
  44   # Same here. We want to default to nil unless overridden.
  45   def get_video_url(url)
  46     return nil
  47   end
  48 end