Sha256: 131bd7e6f08c32fd7b16445dc230325b9324045db81c7ec6aa731c986b4a56c8
Contents?: true
Size: 740 Bytes
Versions: 6
Compression:
Stored size: 740 Bytes
Contents
# frozen_string_literal: true
module PlatformosCheck
class ImgLazyLoading < HtmlCheck
severity :suggestion
categories :html, :performance
doc docs_url(__FILE__)
ACCEPTED_LOADING_VALUES = Set.new(%w[lazy eager]).freeze
LOADING_DEFAULT_ATTRIBUTE = ' loading="eager"'
def on_img(node)
loading = node.attributes["loading"]&.downcase
return if ACCEPTED_LOADING_VALUES.include?(loading)
add_offense("Use loading=\"eager\" for images visible in the viewport on load and loading=\"lazy\" for others", node:) do |corrector|
start_pos = node.start_index + node.markup.index('>')
corrector.insert_after(node, LOADING_DEFAULT_ATTRIBUTE, start_pos...start_pos)
end
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems