Class: Jekyll::UJImageTag

Inherits:
Liquid::Tag
  • Object
show all
Includes:
Jekyll::UJPowertools::VariableResolver
Defined in:
lib/tags/image.rb

Constant Summary collapse

PLACEHOLDER = 
"data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="

Instance Method Summary collapse

Methods included from Jekyll::UJPowertools::VariableResolver

#is_quoted?, #parse_arguments, #parse_options, #resolve_input, #resolve_variable

Constructor Details

#initialize(tag_name, markup, tokens) ⇒ UJImageTag

Returns a new instance of UJImageTag.



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# File 'lib/tags/image.rb', line 10

def initialize(tag_name, markup, tokens)
  super
  @markup = markup.strip
end

Instance Method Details

#render(context) ⇒ Object 



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# File 'lib/tags/image.rb', line 15

def render(context)
  # Parse arguments
  args = parse_arguments(@markup)
  src_input = args[0]

  # Parse options and resolve their values
  options = parse_options(args[1..-1], context)

  # Resolve source path (treat unquoted strings as literals)
  src = resolve_input(context, src_input, true)
  return '' unless src

  # Check if this is an external URL
  is_external = !!(src =~ /^https?:\/\//)

  if is_external
    # For external URLs, just create a simple responsive img tag
    build_external_image(src, options)
  else
    # Extract file extension
    extension = File.extname(src)
    src_path = src.chomp(extension)

    # Determine max width
    max_width = options['max_width'] || options['max-width'] || false
    max_width = max_width.to_s if max_width

    # Build picture element for local images
    build_picture_element(src, src_path, extension, max_width, options)
  end
end