$def with (ocaid, analytics_attr, show_only=False)
$# :param str ocaid:

  <div class="cta-button-group">
    <a class="cta-btn cta-btn--preview"
      data-iframe-src="https://archive.org/details/$ocaid?view=theater&wrapper=false"
      data-iframe-link="https://archive.org/details/$ocaid"
      $:analytics_attr('Preview') href="#bookPreview">$(_('Preview Only') if show_only else _('Preview'))</a>
  </div>

$if render_once('book-preview-floater'):
  <div class="hidden">
    <div class="floater" id="bookPreview">
      <div class="book-preview">
        <div class="floaterHead">
          <h2>$_('Preview Book')</h2>
          <a class="dialog--close" data-key="book_preview">&times;<span class="shift">$_("Close")</span></a>
        </div>
        <div class="iframe-container">
          <iframe style="width:100%; height:515px"></iframe>
          <p class="learn-more">
            <a data-key="book_preview_learn_more"
             data-ol-link-track="book_preview_learn_more">
            </a>
          </p>
        </div>
      </div>
    </div>
  </div>