Class: Idml::Render::HyperlinkResolver

Inherits:
Object
  • Object
show all
Defined in:
lib/idml/render/hyperlink_resolver.rb

Overview

Resolves IDML hyperlink definitions to URL destinations. Looks up Hyperlink#source → Hyperlink#destination → HyperlinkURLDestination#destination_url from the designmap.

The renderer is responsible for mapping source Self IDs to page-item rectangles; this resolver only handles the destination lookup.

Instance Method Summary collapse

Constructor Details

#initialize(package) ⇒ HyperlinkResolver

Returns a new instance of HyperlinkResolver.



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# File 'lib/idml/render/hyperlink_resolver.rb', line 13

def initialize(package)
  @package = package
end

Instance Method Details

#each_visible ⇒ Object

Yields [source_self, url] for every visible hyperlink whose destination chain resolves to a URL.



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# File 'lib/idml/render/hyperlink_resolver.rb', line 29

def each_visible
  return enum_for(:each_visible) unless block_given?

  hyperlinks.each do |hyperlink|
    entry = visible_entry(hyperlink)
    yield(*entry) if entry
  end
end

#url_for_source(source_self) ⇒ Object

Returns the URL for the given hyperlink-source Self, or nil.



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# File 'lib/idml/render/hyperlink_resolver.rb', line 18

def url_for_source(source_self)
  return nil unless source_self

  hyperlink = hyperlink_by_source(source_self)
  return nil unless hyperlink

  url_destination_by_self(hyperlink.destination)&.destination_url
end