54 lines
1.8 KiB
Ruby
54 lines
1.8 KiB
Ruby
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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#
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# The Renderer will parse the options from the +render+ or +render_body+
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# method and render a partial or a template based on the options. The
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# +TemplateRenderer+ and +PartialRenderer+ objects are wrappers which do all
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# the setup and logic necessary to render a view and a new object is created
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# each time +render+ is called.
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class Renderer
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attr_accessor :lookup_context
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def initialize(lookup_context)
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@lookup_context = lookup_context
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end
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# Main render entry point shared by Action View and Action Controller.
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def render(context, options)
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if options.key?(:partial)
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render_partial(context, options)
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else
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render_template(context, options)
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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(context, options)
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if options.key?(:partial)
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[render_partial(context, options)]
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else
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StreamingTemplateRenderer.new(@lookup_context).render(context, options)
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end
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end
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# Direct access to template rendering.
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def render_template(context, options) #:nodoc:
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TemplateRenderer.new(@lookup_context).render(context, options)
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end
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# Direct access to partial rendering.
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def render_partial(context, options, &block) #:nodoc:
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PartialRenderer.new(@lookup_context).render(context, options, block)
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end
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def cache_hits # :nodoc:
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@cache_hits ||= {}
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end
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end
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end
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