150 lines
4.2 KiB
Ruby
150 lines
4.2 KiB
Ruby
require "action_view/view_paths"
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module ActionView
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# This is a class to fix I18n global state. Whenever you provide I18n.locale during a request,
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# it will trigger the lookup_context and consequently expire the cache.
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class I18nProxy < ::I18n::Config #:nodoc:
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attr_reader :original_config, :lookup_context
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def initialize(original_config, lookup_context)
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original_config = original_config.original_config if original_config.respond_to?(:original_config)
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@original_config, @lookup_context = original_config, lookup_context
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end
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def locale
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@original_config.locale
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end
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def locale=(value)
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@lookup_context.locale = value
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end
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end
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module Rendering
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extend ActiveSupport::Concern
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include ActionView::ViewPaths
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# Overwrite process to setup I18n proxy.
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def process(*) #:nodoc:
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old_config, I18n.config = I18n.config, I18nProxy.new(I18n.config, lookup_context)
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super
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ensure
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I18n.config = old_config
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end
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module ClassMethods
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def view_context_class
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@view_context_class ||= begin
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supports_path = supports_path?
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routes = respond_to?(:_routes) && _routes
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helpers = respond_to?(:_helpers) && _helpers
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Class.new(ActionView::Base) do
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if routes
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include routes.url_helpers(supports_path)
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include routes.mounted_helpers
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end
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if helpers
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include helpers
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end
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end
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end
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end
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end
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attr_internal_writer :view_context_class
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def view_context_class
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@_view_context_class ||= self.class.view_context_class
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end
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# An instance of a view class. The default view class is ActionView::Base.
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#
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# The view class must have the following methods:
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# View.new[lookup_context, assigns, controller]
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# Create a new ActionView instance for a controller and we can also pass the arguments.
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# View#render(option)
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# Returns String with the rendered template
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#
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# Override this method in a module to change the default behavior.
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def view_context
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view_context_class.new(view_renderer, view_assigns, self)
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end
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# Returns an object that is able to render templates.
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# :api: private
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def view_renderer
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@_view_renderer ||= ActionView::Renderer.new(lookup_context)
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end
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def render_to_body(options = {})
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_process_options(options)
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_render_template(options)
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end
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def rendered_format
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Template::Types[lookup_context.rendered_format]
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end
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private
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# Find and render a template based on the options given.
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# :api: private
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def _render_template(options) #:nodoc:
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variant = options.delete(:variant)
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assigns = options.delete(:assigns)
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context = view_context
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context.assign assigns if assigns
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lookup_context.rendered_format = nil if options[:formats]
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lookup_context.variants = variant if variant
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view_renderer.render(context, options)
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end
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# Assign the rendered format to look up context.
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def _process_format(format) #:nodoc:
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super
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lookup_context.formats = [format.to_sym]
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lookup_context.rendered_format = lookup_context.formats.first
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end
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# Normalize args by converting render "foo" to render :action => "foo" and
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# render "foo/bar" to render :template => "foo/bar".
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# :api: private
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def _normalize_args(action=nil, options={})
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options = super(action, options)
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case action
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when NilClass
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when Hash
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options = action
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when String, Symbol
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action = action.to_s
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key = action.include?(?/) ? :template : :action
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options[key] = action
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else
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options[:partial] = action
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end
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options
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end
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# Normalize options.
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# :api: private
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def _normalize_options(options)
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options = super(options)
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if options[:partial] == true
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options[:partial] = action_name
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end
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if (options.keys & [:partial, :file, :template]).empty?
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options[:prefixes] ||= _prefixes
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end
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options[:template] ||= (options[:action] || action_name).to_s
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options
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end
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end
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end
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