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70 lines
2.4 KiB
Ruby
70 lines
2.4 KiB
Ruby
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module ActionView
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# This is the main entry point for rendering. It basically delegates
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# to other objects like TemplateRenderer and PartialRenderer which
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# actually renders the template.
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class Renderer
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attr_accessor :lookup_context
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# TODO: render_context should not be an initialization parameter
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def initialize(lookup_context, render_context)
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@render_context = render_context
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@lookup_context = lookup_context
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@view_flow = OutputFlow.new
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end
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# Returns the result of a render that's dictated by the options hash. The primary options are:
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#
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# * <tt>:partial</tt> - See ActionView::Partials.
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# * <tt>:file</tt> - Renders an explicit template file (this used to be the old default), add :locals to pass in those.
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# * <tt>:inline</tt> - Renders an inline template similar to how it's done in the controller.
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# * <tt>:text</tt> - Renders the text passed in out.
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#
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# If no options hash is passed or :update specified, the default is to render a partial and use the second parameter
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# as the locals hash.
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def render(options = {}, locals = {}, &block)
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case options
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when Hash
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if block_given?
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_render_partial(options.merge(:partial => options[:layout]), &block)
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elsif options.key?(:partial)
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_render_partial(options)
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else
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_render_template(options)
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end
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else
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_render_partial(:partial => options, :locals => locals)
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end
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end
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# Render but returns a valid Rack body. If fibers are defined, we return
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# a streaming body that renders the template piece by piece.
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#
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# Note that partials are not supported to be rendered with streaming,
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# so in such cases, we just wrap them in an array.
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def render_body(options)
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if options.key?(:partial)
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[_render_partial(options)]
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else
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StreamingTemplateRenderer.new(@render_context, @lookup_context).render(options)
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end
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end
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private
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def _render_template(options) #:nodoc:
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_template_renderer.render(options)
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end
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def _template_renderer #:nodoc:
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@_template_renderer ||= TemplateRenderer.new(@render_context, @lookup_context)
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end
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def _render_partial(options, &block) #:nodoc:
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_partial_renderer.setup(options, block).render
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end
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def _partial_renderer #:nodoc:
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@_partial_renderer ||= PartialRenderer.new(@render_context, @lookup_context)
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end
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end
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end
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