function link_field_formatter in Link 5

Implementation of hook_field_formatter().

File

./link.module, line 594

Defines simple link field types.

Code

function link_field_formatter($field, $item, $formatter, $node) {
  if (empty($item['url']) && ($field['url'] != 'optional' || empty($item['title']))) {
    return '';
  }
  if ($formatter == 'plain') {
    return empty($item['url']) ? check_plain($item['title']) : check_plain(link_cleanup_url($item['url']));
  }

  // Replace URL tokens.
  if (module_exists('token') && $field['enable_tokens']) {

    // Load the node if necessary for nodes in views.
    $token_node = isset($node->nid) ? node_load($node->nid) : $node;
    $item['url'] = token_replace($item['url'], 'node', $token_node);
  }
  $type = link_validate_url($item['url']);
  $url = link_cleanup_url($item['url']);

  // Separate out the anchor if any.
  if (strpos($url, '#') !== FALSE) {
    $fragment = substr($url, strpos($url, '#') + 1);
    $url = substr($url, 0, strpos($url, '#'));
  }

  // Separate out the query string if any.
  if (strpos($url, '?') !== FALSE) {
    $query = substr($url, strpos($url, '?') + 1);
    $url = substr($url, 0, strpos($url, '?'));
  }

  // Create a display URL.
  $display_url = $type == LINK_EMAIL ? str_replace('mailto:', '', $url) : url($url, $query, $fragment, TRUE);
  if ($field['display']['url_cutoff'] && strlen($display_url) > $field['display']['url_cutoff']) {
    $display_url = substr($display_url, 0, $field['display']['url_cutoff']) . "...";
  }

  // Build a list of attributes.
  $attributes = array();
  $item['attributes'] = unserialize($item['attributes']);

  // Add attributes defined at the widget level.
  if (!empty($item['attributes']) && is_array($item['attributes'])) {
    foreach ($item['attributes'] as $attribute => $attbvalue) {
      if (isset($item['attributes'][$attribute]) && $field['attributes'][$attribute] == 'user') {
        $attributes[$attribute] = $attbvalue;
      }
    }
  }

  // Add attributes defined at the field level.
  if (is_array($field['attributes'])) {
    foreach ($field['attributes'] as $attribute => $attbvalue) {
      if (!empty($attbvalue) && $attbvalue != 'default' && $attbvalue != 'user') {
        $attributes[$attribute] = $attbvalue;
      }
    }
  }

  // Remove the rel=nofollow for internal links.
  if ($type != LINK_EXTERNAL && isset($attributes['rel']) && strpos($attributes['rel'], 'nofollow') !== FALSE) {
    $attributes['rel'] = str_replace('nofollow', '', $attributes['rel']);
    if (empty($attributes['rel'])) {
      unset($attributes['rel']);
    }
  }

  // Give the link the title 'Link'.
  if ($formatter == 'short') {
    $output = l(t('Link'), $url, $attributes, $query, $fragment);
  }
  elseif ($formatter == 'label') {
    $output = l(t($field['widget']['label']), $url, $attributes, $query, $fragment);
  }
  elseif ($formatter == 'url') {
    $output = l($display_url, $url, $attributes, $query, $fragment);
  }
  elseif ($formatter == 'separate') {
    $title = check_plain(_link_field_formatter_title($field, $item, $node));
    $class = empty($field['attributes']['class']) ? '' : ' ' . $field['attributes']['class'];
    unset($field['attributes']['class']);
    $output = '';
    $output .= '<div class="link-item' . $class . '">';
    $output .= '<div class="link-title">' . $title . '</div>';
    $output .= '<div class="link-url">' . l($display_url, $url, $attributes, $query, $fragment, FALSE, $item['html']) . '</div>';
    $output .= '</div>';
  }
  elseif (strlen(trim($item['title'])) || $field['title'] == 'value' && strlen(trim($field['title_value']))) {
    $title = _link_field_formatter_title($field, $item, $node);
    if (empty($url) && !empty($title)) {
      $output = check_plain($title);
    }
    else {
      $output = l($title, $url, $attributes, $query, $fragment, FALSE, $item['html']);
    }
  }
  else {
    $output = l($display_url, $url, $attributes, $query, $fragment);
  }
  return $output;
}