Class: Middleman::TemplateRenderer

Inherits:
Object
  • Object
show all
Extended by:
Forwardable
Includes:
Contracts
Defined in:
lib/middleman-core/template_renderer.rb

Defined Under Namespace

Classes: Cache, TemplateNotFound

Constant Summary

Constants included from Contracts

Contracts::PATH_MATCHER

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Contracts

#Contract

Constructor Details

#initialize(app, path) ⇒ TemplateRenderer

Returns a new instance of TemplateRenderer.



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# File 'lib/middleman-core/template_renderer.rb', line 34

def initialize(app, path)
  @app = app
  @path = path
end

Class Method Details

.cache ⇒ Object 



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# File 'lib/middleman-core/template_renderer.rb', line 27

def self.cache
  @_cache ||= Cache.new
end

Instance Method Details

#Hash ⇒ String

Render a template, with layout, given a path

Parameters:

Returns:

  • (String) 


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# File 'lib/middleman-core/template_renderer.rb', line 44

Contract Hash, Hash => String

#render(locs = {}, opts = {}, &block) ⇒ Object 



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# File 'lib/middleman-core/template_renderer.rb', line 45

def render(locs={}, opts={}, &block)
  path = @path.dup
  locals = locs.dup.freeze
  options = opts.dup

  extension = File.extname(path)
  engine = extension[1..-1].to_sym

  if defined?(::I18n)
    old_locale = ::I18n.locale
    ::I18n.locale = options[:locale] if options[:locale]

    # Backwards compat
    ::I18n.locale = options[:lang] if options[:lang]
  end

  # Sandboxed class for template eval
  context = @app.template_context_class.new(@app, locals, options)

  # Add extension helpers to context.
  @app.extensions.add_exposed_to_context(context)

  content = _render_with_all_renderers(path, locs, context, opts, &block)

  # If we need a layout and have a layout, use it
  if layout_file = fetch_layout(engine, options)
    layout_renderer = ::Middleman::FileRenderer.new(@app, layout_file[:relative_path].to_s)
    content = layout_renderer.render(locals, options, context) { content }
  end

  # Return result
  content
ensure
  # Pop all the saved variables from earlier as we may be returning to a
  # previous render (layouts, partials, nested layouts).
  ::I18n.locale = old_locale if defined?(::I18n)
end