public function producePhutilSafeHTML()

in web_ui/src/applications/bistro/view/BistroPagerView.php [104:207]
80 lines of code
16 McCabe index (conditional complexity)

  public function producePhutilSafeHTML() {
    if (!$this->uri) {
      throw new Exception(
        pht("You must call setURI() before you can call render()."));
    }

    require_celerity_resource('bistro-pager-view-css');

    $page = (int)floor($this->getOffset() / $this->getPageSize());
    $last = ((int)ceil($this->computeCount() / $this->getPageSize())) - 1;
    $near = $this->surroundingPages;

    $min = $page - $near;
    $max = $page + $near;

    // Limit the window size to no larger than the number of available pages.
    if ($max - $min > $last) {
      $max = $min + $last;
      if ($max == $min) {
        return phabricator_tag(
          'div', array('class' => 'bistro-pager-view'), '');
      }
    }

    // Slide the window so it is entirely over displayable pages.
    if ($min < 0) {
      $max += 0 - $min;
      $min += 0 - $min;
    }

    if ($max > $last) {
      $min -= $max - $last;
      $max -= $max - $last;
    }


    // Build up a list of <index, label, css-class> tuples which describe the
    // links we'll display, then render them all at once.

    $links = array();

    $prev_index = null;
    $next_index = null;

    if ($min > 0) {
      $links[] = array(0, pht('First'), null);
    }

    if ($page > 0) {
      $links[] = array($page - 1, pht('Prev'), null);
      $prev_index = $page - 1;
    }

    for ($ii = $min; $ii <= $max; $ii++) {
      $links[] = array($ii, $ii + 1, ($ii == $page) ? 'current' : null);
    }

    if ($page < $last && $last > 0) {
      $links[] = array($page + 1, pht('Next'), null);
      $next_index = $page + 1;
    }

    if ($max < ($last - 1)) {
      $links[] = array($last, pht('Last'), null);
    }

    $base_uri = $this->uri;
    $parameter = $this->pagingParameter;

    if ($this->enableKeyboardShortcuts) {
      $pager_links = array();
      $pager_index = array(
        'prev' => $prev_index,
        'next' => $next_index);
      foreach ($pager_index as $key => $index) {
        if ($index !== null) {
          $display_index = $this->getDisplayIndex($index);
          $pager_links[$key] = (string)$base_uri->alter(
            $parameter,
            $display_index);
        }
      }
      Javelin::initBehavior('phabricator-keyboard-pager', $pager_links);
    }

    // Convert tuples into rendered nodes.
    $rendered_links = array();
    foreach ($links as $link) {
      list($index, $label, $class) = $link;
      $display_index = $this->getDisplayIndex($index);
      $link = $base_uri->alter($parameter, $display_index);
      $rendered_links[] = phabricator_tag(
        'a',
        array(
          'href' => $link,
          'class' => $class),
        $label);
    }

    return phabricator_tag(
      'div',
      array('class' => 'bistro-pager-view'),
      $rendered_links);
  }