Module: Proscenium::SideLoad::Controller

Defined in:
lib/proscenium/side_load.rb

Defined Under Namespace

Modules: ClassMethods

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(child) ⇒ Object 



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# File 'lib/proscenium/side_load.rb', line 10

def self.included(child)
  child.class_eval do
    class_attribute :sideload_assets_options
    child.extend ClassMethods

    append_after_action :capture_and_replace_proscenium_stylesheets,
                        :capture_and_replace_proscenium_javascripts,
                        if: -> { response.content_type&.include?('html') }
  end
end

Instance Method Details

#capture_and_replace_proscenium_javascripts ⇒ Object 



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# File 'lib/proscenium/side_load.rb', line 70

def capture_and_replace_proscenium_javascripts
  return if response_body.nil?
  return if response_body.first.blank? || !Proscenium::Importer.js_imported?

  imports = Proscenium::Importer.imported.dup
  paths_to_build = []
  Proscenium::Importer.each_javascript(delete: true) do |x, _|
    paths_to_build << x.delete_prefix('/')
  end

  result = Proscenium::Builder.build_to_path(paths_to_build.join(';'),
                                             base_url: helpers.request.base_url)

  included_js_comment = response_body.first.include?(JS_COMMENT)
  included_lazy_comment = response_body.first.include?(LAZY_COMMENT)
  fragments = if (fragment_header = request.headers['X-Fragment'])
                fragment_header.split
              end

  if fragments || included_js_comment
    out = []
    scripts = {}
    result.split(';').each do |x|
      inpath, outpath = x.split('::')
      inpath.prepend '/'
      outpath.delete_prefix! 'public'

      next unless imports.key?(inpath)

      if (import = imports[inpath]).delete(:lazy)
        scripts[inpath] = import.merge(outpath:)
      else
        opts = import[:js].is_a?(Hash) ? import[:js] : {}
        opts[:preload_links_header] = false if fragments
        out << helpers.javascript_include_tag(outpath, extname: false, **opts)
      end
    end

    if fragments
      response_body.first.prepend out.join.html_safe
    elsif included_js_comment
      response_body.first.gsub! JS_COMMENT, out.join.html_safe
    end
  end

  return if !fragments && !included_lazy_comment

  lazy_script = ''
  if scripts.present?
    lazy_script = helpers.content_tag 'script', type: 'application/json',
                                                id: 'prosceniumLazyScripts' do
      scripts.to_json.html_safe
    end
  end

  if fragments
    response_body.first.prepend lazy_script
  elsif included_lazy_comment
    response_body.first.gsub! LAZY_COMMENT, lazy_script
  end
end

#capture_and_replace_proscenium_stylesheets ⇒ Object 



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# File 'lib/proscenium/side_load.rb', line 27

def capture_and_replace_proscenium_stylesheets
  return if response_body.nil?
  return if response_body.first.blank? || !Proscenium::Importer.css_imported?

  included_comment = response_body.first.include?(CSS_COMMENT)
  fragments = if (fragment_header = request.headers['X-Fragment'])
                fragment_header.split
              end

  return if !fragments && !included_comment

  imports = Proscenium::Importer.imported.dup
  paths_to_build = []
  Proscenium::Importer.each_stylesheet(delete: true) do |x, _|
    paths_to_build << x.delete_prefix('/')
  end

  result = Proscenium::Builder.build_to_path(paths_to_build.join(';'),
                                             base_url: helpers.request.base_url)

  out = []
  result.split(';').each do |x|
    inpath, outpath = x.split('::')
    inpath.prepend '/'
    outpath.delete_prefix! 'public'

    next unless imports.key?(inpath)

    import = imports[inpath]
    opts = import[:css].is_a?(Hash) ? import[:css] : {}
    opts[:preload_links_header] = false if fragments
    opts[:data] ||= {}
    opts[:data][:original_href] = inpath
    out << helpers.stylesheet_link_tag(outpath, extname: false, **opts)
  end

  if fragments
    response_body.first.prepend out.join.html_safe
  elsif included_comment
    response_body.first.gsub! CSS_COMMENT, out.join.html_safe
  end
end