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c1304098cc
* A new module (ActiveSupport::Autoload) is provide that extends
autoloading with new behavior.
* All autoloads in modules that have extended ActiveSupport::Autoload
will be eagerly required in threadsafe environments
* Autoloads can optionally leave off the path if the path is the same
as full_constant_name.underscore
* It is possible to specify that a group of autoloads live under an
additional path. For instance, all of ActionDispatch's middlewares
are ActionDispatch::MiddlewareName, but they live under
"action_dispatch/middlewares/middleware_name"
* It is possible to specify that a group of autoloads are all found
at the same path. For instance, a number of exceptions might all
be declared there.
* One consequence of this is that testing-related constants are not
autoloaded. To get the testing helpers for a given component,
require "component_name/test_case". For instance, "action_controller/test_case".
* test_help.rb, which is automatically required by a Rails application's
test helper, requires the test_case.rb for all active components, so
this change will not be disruptive in existing or new applications.
54 lines
1.9 KiB
Ruby
54 lines
1.9 KiB
Ruby
module ActionView #:nodoc:
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class Template
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module Handlers #:nodoc:
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autoload :ERB, 'action_view/template/handlers/erb'
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autoload :RJS, 'action_view/template/handlers/rjs'
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autoload :Builder, 'action_view/template/handlers/builder'
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def self.extended(base)
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base.register_default_template_handler :erb, ERB
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base.register_template_handler :rjs, RJS
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base.register_template_handler :builder, Builder
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# TODO: Depreciate old template extensions
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base.register_template_handler :rhtml, ERB
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base.register_template_handler :rxml, Builder
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end
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@@template_handlers = {}
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@@default_template_handlers = nil
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def self.extensions
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@@template_handlers.keys
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end
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# Register a class that knows how to handle template files with the given
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# extension. This can be used to implement new template types.
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# The constructor for the class must take the ActiveView::Base instance
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# as a parameter, and the class must implement a +render+ method that
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# takes the contents of the template to render as well as the Hash of
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# local assigns available to the template. The +render+ method ought to
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# return the rendered template as a string.
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def register_template_handler(extension, klass)
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@@template_handlers[extension.to_sym] = klass
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end
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def template_handler_extensions
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@@template_handlers.keys.map {|key| key.to_s }.sort
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end
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def registered_template_handler(extension)
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extension && @@template_handlers[extension.to_sym]
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end
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def register_default_template_handler(extension, klass)
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register_template_handler(extension, klass)
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@@default_template_handlers = klass
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end
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def handler_class_for_extension(extension)
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(extension && registered_template_handler(extension.to_sym)) || @@default_template_handlers
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end
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end
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end
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end
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