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tag: v3.0.0_RC2
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module ActionView #:nodoc:
# = Action View Template Handlers
class Template
module Handlers #:nodoc:
autoload :ERB, 'action_view/template/handlers/erb'
autoload :RJS, 'action_view/template/handlers/rjs'
autoload :Builder, 'action_view/template/handlers/builder'
def self.extended(base)
base.register_default_template_handler :erb, ERB
base.register_template_handler :rjs, RJS
base.register_template_handler :builder, Builder
# TODO: Depreciate old template extensions
base.register_template_handler :rhtml, ERB
base.register_template_handler :rxml, Builder
end
@@template_handlers = {}
@@default_template_handlers = nil
def self.extensions
@@template_extensions ||= @@template_handlers.keys
end
# Register a class that knows how to handle template files with the given
# extension. This can be used to implement new template types.
# The constructor for the class must take the ActiveView::Base instance
# as a parameter, and the class must implement a +render+ method that
# takes the contents of the template to render as well as the Hash of
# local assigns available to the template. The +render+ method ought to
# return the rendered template as a string.
def register_template_handler(extension, klass)
@@template_handlers[extension.to_sym] = klass
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_class_for_extension(extension)
(extension && registered_template_handler(extension.to_sym)) || @@default_template_handlers
end
end
end
end
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