phorge-phorge/src/view/layout/AphrontCrumbsView.php

<?php

final class AphrontCrumbsView extends AphrontView {

  private $crumbs = array();

  public function setCrumbs(array $crumbs) {
    $this->crumbs = $crumbs;
    return $this;
  }

  public function render() {

    require_celerity_resource('aphront-crumbs-view-css');

    $out = array();
    foreach ($this->crumbs as $crumb) {
      $out[] = $crumb;
    }
    $out = phutil_implode_html(
      hsprintf('<span class="aphront-crumbs-spacer">'."\xC2\xBB".'</span>'),
      $out);

    return hsprintf(
      '<div class="aphront-crumbs-view">'.
        '<div class="aphront-crumbs-content">%s</div>'.
      '</div>',
      $out);
  }

}