diff options
Diffstat (limited to 'actionpack/lib/action_view/template_handlers.rb')
| -rw-r--r-- | actionpack/lib/action_view/template_handlers.rb | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/actionpack/lib/action_view/template_handlers.rb b/actionpack/lib/action_view/template_handlers.rb index d06ddd5fb5..c50a51b0d1 100644 --- a/actionpack/lib/action_view/template_handlers.rb +++ b/actionpack/lib/action_view/template_handlers.rb @@ -28,6 +28,10 @@ module ActionView #:nodoc: @@template_handlers[extension.to_sym] = klass end + def valid_extension?(extension) + template_handler_extensions.include?(extension) || init_path_for_extension(extension) + end + def template_handler_extensions @@template_handlers.keys.map(&:to_s).sort end @@ -38,7 +42,26 @@ module ActionView #:nodoc: end def handler_class_for_extension(extension) - (extension && @@template_handlers[extension.to_sym]) || @@default_template_handlers + (extension && @@template_handlers[extension.to_sym] || autoload_handler_class(extension)) || + @@default_template_handlers end + + private + def autoload_handler_class(extension) + return if Gem.loaded_specs[extension] + return unless init_path = init_path_for_extension(extension) + Gem.activate(extension) + load(init_path) + handler_class_for_extension(extension) + end + + # Returns the path to the rails/init.rb file for the given extension, + # or nil if no gem provides it. + def init_path_for_extension(extension) + return unless spec = Gem.searcher.find(extension.to_s) + returning File.join(spec.full_gem_path, 'rails', 'init.rb') do |path| + return unless File.file?(path) + end + end end end |