Module: Middleman::Presentation::Helpers::Slides

Defined in:
lib/middleman-presentation-helpers/helpers/slides.rb

Overview

Slides helpers

Instance Method Summary collapse

Instance Method Details

#yield_slides ⇒ Object

Yield slides



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# File 'lib/middleman-presentation-helpers/helpers/slides.rb', line 9

def yield_slides
  environment = Middleman::Presentation::MiddlemanEnvironment.new

  list = SlideList.new(Dir.glob(File.join(environment.slides_path, '**', '*')), slide_builder: ExistingSlide, base_path: environment.sources_path) do |l|
    l.transform_with Transformers::FileKeeper.new
    l.transform_with Transformers::RemoveDuplicateSlides.new raise_error: true
    l.transform_with Transformers::IgnoreSlides.new ignore_file: File.join(environment.root_path, Middleman::Presentation.config.slides_ignore_file)
    l.transform_with Transformers::SortSlides.new
    l.transform_with Transformers::GroupSlides.new template: Erubis::Eruby.new(GroupTemplate.new(working_directory: environment.root_path).content)
  end

  list.all.map do |element|
    begin
      element.render { |path| render_template(path, {}, layout: nil).chomp }
    rescue StandardError => e
      message = []
      message << "Rendering slide \"#{element.partial_path}\" failed with"
      message << e.class.to_s + ': ' + e.message
      message << e.backtrace.join("\n")

      raise e.class, message.join("\n\n")
    end
  end.join("\n")
end