rails--rails/actionpack/lib/action_view/template/handlers.rb

48 lines
1.5 KiB
Ruby

module ActionView #:nodoc:
# = Action View Template Handlers
class Template
module Handlers #:nodoc:
autoload :ERB, 'action_view/template/handlers/erb'
autoload :Builder, 'action_view/template/handlers/builder'
def self.extended(base)
base.register_default_template_handler :erb, ERB.new
base.register_template_handler :builder, Builder.new
end
@@template_handlers = {}
@@default_template_handlers = nil
def self.extensions
@@template_extensions ||= @@template_handlers.keys
end
# Register an object that knows how to handle template files with the given
# extension. This can be used to implement new template types.
# The handler must respond to `:call`, which will be passed the template
# and should return the rendered template as a String.
def register_template_handler(extension, handler)
@@template_handlers[extension.to_sym] = handler
@@template_extensions = nil
end
def template_handler_extensions
@@template_handlers.keys.map {|key| key.to_s }.sort
end
def registered_template_handler(extension)
extension && @@template_handlers[extension.to_sym]
end
def register_default_template_handler(extension, klass)
register_template_handler(extension, klass)
@@default_template_handlers = klass
end
def handler_for_extension(extension)
registered_template_handler(extension) || @@default_template_handlers
end
end
end
end