function theme_select_as_links in Better Exposed Filters 8.3

Same name and namespace in other branches

1. 6.3 better_exposed_filters.theme \theme_select_as_links()
2. 6 better_exposed_filters.theme \theme_select_as_links()
3. 6.2 better_exposed_filters.theme \theme_select_as_links()
4. 7.3 better_exposed_filters.theme \theme_select_as_links()
5. 7 better_exposed_filters.theme \theme_select_as_links()

Themes a select drop-down as a collection of links.

Parameters

array $vars: An array of arrays, the 'element' item holds the properties of the element.

Return value

string HTML representing the form element.

See also

http://api.drupal.org/api/function/theme_select/7

File

./better_exposed_filters.theme, line 340

Provides theming functions to display exposed forms using different interfaces.

Code

function theme_select_as_links($vars) {
  $element = $vars['element'];
  $output = '';
  $name = $element['#name'];

  // Collect selected values so we can properly style the links later.
  $selected_options = array();
  if (empty($element['#value'])) {
    if (!empty($element['#default_values'])) {
      $selected_options[] = $element['#default_values'];
    }
  }
  else {
    $selected_options[] = $element['#value'];
  }

  // Add to the selected options specified by Views whatever options are in the
  // URL query string, but only for this filter.
  $urllist = parse_url(request_uri());
  if (isset($urllist['query'])) {
    $query = array();
    parse_str(urldecode($urllist['query']), $query);
    foreach ($query as $key => $value) {
      if ($key != $name) {
        continue;
      }
      if (is_array($value)) {

        // This filter allows multiple selections, so put each one on the
        // selected_options array.
        foreach ($value as $option) {
          $selected_options[] = $option;
        }
      }
      else {
        $selected_options[] = $value;
      }
    }
  }

  // Clean incoming values to prevent XSS attacks.
  if (is_array($element['#value'])) {
    foreach ($element['#value'] as $index => $item) {
      unset($element['#value'][$index]);
      $element['#value'][filter_xss($index)] = filter_xss($item);
    }
  }
  elseif (is_string($element['#value'])) {
    $element['#value'] = filter_xss($element['#value']);
  }

  // Go through each filter option and build the appropriate link or plain text.
  foreach ($element['#options'] as $option => $elem) {

    // Check for Taxonomy-based filters.
    if (is_object($elem)) {
      $slice = array_slice($elem->option, 0, 1, TRUE);
      $option = key($slice);
      $elem = current($slice);
    }

    // Check for optgroups.  Put subelements in the $element_set array and add
    // a group heading. Otherwise, just add the element to the set.
    $element_set = array();
    if (is_array($elem)) {
      $element_set = $elem;
    }
    else {
      $element_set[$option] = $elem;
    }
    $links = array();
    $multiple = !empty($element['#multiple']);

    // If we're in an exposed block, we'll get passed a path to use for the
    // Views results page.
    $path = '';
    if (!empty($element['#bef_path'])) {
      $path = $element['#bef_path'];
    }
    foreach ($element_set as $key => $value) {

      // Custom ID for each link based on the <select>'s original ID.
      $id = drupal_html_id($element['#id'] . '-' . $key);
      $elem = array(
        '#id' => $id,
        '#markup' => '',
        '#type' => 'bef-link',
        '#name' => $id,
      );
      if (array_search($key, $selected_options) === FALSE) {
        $elem['#children'] = l($value, bef_replace_query_string_arg($name, $key, $multiple, FALSE, $path));

        // @TODO: Render in a template
        $output .= theme('form_element', array(
          'element' => $elem,
        ));
      }
      else {
        $elem['#children'] = l($value, bef_replace_query_string_arg($name, $key, $multiple, TRUE, $path));
        _form_set_class($elem, array(
          'bef-select-as-links-selected',
        ));

        // @TODO: Render in a template
        $output .= str_replace('form-item', 'form-item selected', theme('form_element', array(
          'element' => $elem,
        )));
      }
    }
  }
  $properties = array(
    '#description' => isset($element['#bef_description']) ? $element['#bef_description'] : '',
    '#children' => $output,
  );

  // @TODO: Render in a template
  $output = '<div class="bef-select-as-links">';
  $output .= theme('form_element', array(
    'element' => $properties,
  ));
  if (!empty($element['#value'])) {
    if (is_array($element['#value'])) {
      foreach ($element['#value'] as $value) {
        $output .= '<input type="hidden" name="' . $name . '[]" value="' . $value . '" />';
      }
    }
    else {
      $output .= '<input type="hidden" name="' . $name . '" value="' . $element['#value'] . '" />';
    }
  }
  $output .= '</div>';
  return $output;
}