Class: Html2rss::AttributePostProcessors::HtmlTransformers::TransformUrlsToAbsoluteOnes

Inherits:
Object
  • Object
show all
Defined in:
lib/html2rss/attribute_post_processors/html_transformers/transform_urls_to_absolute_ones.rb

Overview

Transformer that converts relative URLs to absolute URLs within specified HTML elements.

Constant Summary collapse

URL_ELEMENTS_WITH_URL_ATTRIBUTE = 
{ 'a' => :href, 'img' => :src }.freeze

Instance Method Summary collapse

Constructor Details

#initialize(channel_url) ⇒ TransformUrlsToAbsoluteOnes

Returns a new instance of TransformUrlsToAbsoluteOnes.



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# File 'lib/html2rss/attribute_post_processors/html_transformers/transform_urls_to_absolute_ones.rb', line 11

def initialize(channel_url)
  @channel_url = channel_url
end

Instance Method Details

#call(node_name:, node:, **_env) ⇒ Object

Transforms URLs to absolute ones.



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# File 'lib/html2rss/attribute_post_processors/html_transformers/transform_urls_to_absolute_ones.rb', line 17

def call(node_name:, node:, **_env)
  return unless URL_ELEMENTS_WITH_URL_ATTRIBUTE.key?(node_name)

  url_attribute = URL_ELEMENTS_WITH_URL_ATTRIBUTE[node_name]
  url = node[url_attribute]
  node[url_attribute] = Html2rss::Utils.build_absolute_url_from_relative(url, @channel_url)
end