Module: Asciidoctor::BeautifyUri::CardRenderer

Defined in:
lib/asciidoctor/beautify_uri/card_renderer.rb

Overview

Fills the shared, language-agnostic templates/card.html shell, and the per-provider icon fragments beside it, for the HTML5/DocBook backends. The exact same template file is used by the npm package's JS renderer, see js/lib/card_renderer.js, so any layout change belongs in that one file, not duplicated in code here.

Constant Summary collapse

TEMPLATE_DIR = 
File.expand_path('../../../templates', __dir__)
SHELL =

Strip the leading documentation comment (its prose repeats the same {TOKEN} spellings as the real markup below it) before this becomes the substitution target, so each token is replaced exactly once. Read explicitly as UTF-8: card.html's own doc comment carries real Unicode text, and Ruby's default external encoding on a minimal CI image (no locale configured) is US-ASCII, which raised "invalid byte sequence in US-ASCII" on the very first .sub call below, confirmed live in CI though never reproduced locally, where the shell's own locale is already UTF-8.

File.read(File.join(TEMPLATE_DIR, 'card.html'), encoding: 'UTF-8').sub(/\A<!--.*?-->\s*/m, '').freeze

Class Method Summary collapse

Class Method Details

.escape_html(text) ⇒ Object 



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# File 'lib/asciidoctor/beautify_uri/card_renderer.rb', line 25

def self.escape_html(text)
  text.to_s
    .gsub('&', '&amp;')
    .gsub('<', '&lt;')
    .gsub('>', '&gt;')
    .gsub('"', '&quot;')
end

.icon(name) ⇒ Object 



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# File 'lib/asciidoctor/beautify_uri/card_renderer.rb', line 21

def self.icon(name)
  File.read(File.join(TEMPLATE_DIR, 'icons', "#{name}.svg"), encoding: 'UTF-8')
end

.render(provider, data, thumbnail: true) ⇒ Object

data - Hash with :title, :subtitle (nullable), :thumbnail_url (nullable), :target_url provider - provider module (must respond to .key, .link_text, .icon_block) thumbnail - Boolean, whether to render the thumbnail column



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# File 'lib/asciidoctor/beautify_uri/card_renderer.rb', line 36

def self.render(provider, data, thumbnail: true)
  thumb_url = thumbnail ? data[:thumbnail_url] : nil

  # No photographic thumbnail — thumbnail=false, or the provider
  # simply didn't resolve one — falls back to the provider's own
  # brand mark at full size in that column, rather than leaving it
  # empty. The small icon beside the link line is then redundant
  # (the same mark already anchors the card at a much larger size)
  # and dropped.
  if thumb_url
    thumbnail_block = %(<img class="uri-card-thumb" src="#{escape_html thumb_url}" alt="#{escape_html data[:title]}">)
    provider_icon_block = provider.icon_block
  else
    thumbnail_block = %(<span class="uri-card-thumb-logo">#{icon provider.key}</span>)
    provider_icon_block = ''
  end

  meta_line_block =
    if data[:subtitle] && !data[:subtitle].empty?
      %(<p class="uri-card-subtitle">#{escape_html data[:subtitle]}</p>)
    else
      ''
    end

  SHELL
    .sub('{{ID_ATTR}}', data[:id] ? %( id="#{escape_html data[:id]}") : '')
    .sub('{{PROVIDER}}', provider.key)
    .sub('{{GRID_COLUMNS}}', 'auto auto')
    .sub('{{THUMBNAIL_BLOCK}}', thumbnail_block)
    .sub('{{TITLE}}', escape_html(data[:title]))
    .sub('{{META_LINE_BLOCK}}', meta_line_block)
    .sub('{{PROVIDER_ICON_BLOCK}}', provider_icon_block)
    .sub('{{PROVIDER_LINK_TEXT}}', escape_html(provider.link_text))
    .sub('{{TARGET_URL}}', escape_html(data[:target_url]))
end