Contents

# frozen_string_literal: true

require_relative "anti_image_reflow/version"

require "jekyll"
require "nokogiri"
require "fastimage"

#module AntiImageReflow
#  class Error < StandardError; end
#  # Your code goes here...
#end

module Jekyll
  class AntiImageReflow
      def self.process(content)
          html = content.output
          content.output = process_tags(html) if process_tags?(html)
      end

      def self.process?(doc)
          (doc.is_a?(Jekyll::Page) || doc.write?) && doc.output_ext == ".html" || doc.permalink&.end_with?("/")
      end

      def self.process_tags?(html)
          html.include?("<img") || html.include?("<iframe")
      end

      def self.process_tags(html)
          content = Nokogiri.HTML(html)
          tags = content.css("img[src]")

          tags.each do |tag|
              # add height and width attributes
              if tag.name == "img"
                  size = FastImage.size(File.join(Dir.pwd, tag["src"]))
                  tag["width"] = size[0] unless tag["width"] || size.nil?
                  tag["height"] = size[1] unless tag["height"] || size.nil?
                  tag["loading"] = "lazy" unless tag["loading"]
              end
          end

          content.to_html
      end

      private_class_method :process_tags
      private_class_method :process_tags?
  end
end

Jekyll::Hooks.register [:pages, :documents], :post_render do |doc|
  Jekyll::AntiImageReflow.process(doc) if Jekyll::AntiImageReflow.process?(doc)
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
anti_image_reflow-0.1.0	lib/anti_image_reflow.rb