Added features for Menu Trails By Path

Hi there,

first thanks a lot for this module, this helped my fix a problem I was struggling with. But it didn't immediately work as it was supposed to. Because I'm developing on a subdirectory on this server, the functionalitity of the module broke.

I also added calls to custom_url_rewrite_outbound, so that functionality of modules like Sub-path URL Aliases is also applied before the check.

I also added template functions for local tasks, and updated the others accordingly.

The new code it the following:

function is_link_html_in_active_trail($link_html) {
  $link_array = explode('href="', $link_html);
  $link_array = explode('"', $link_array[1]);
  $link_href = trim($link_array[0]);
  
  return is_link_href_in_active_trail($link_href);
}

function is_link_href_in_active_trail($link_href, $current_path_alias = null) {
  static $current_path_alias;
  if (empty($current_path_alias)) {
    $current_path_alias = drupal_get_path_alias($_GET['q']);
    if (function_exists('custom_url_rewrite_outbound')) {
      $options = array();
      custom_url_rewrite_outbound($current_path_alias, $options, $current_path_alias);
    }
  }
  
  $link_path = $link_href;
  
  $base_path = base_path();
  if (strpos($link_path, $base_path) === 0) {
    $link_path = substr($link_path, strlen($base_path));
  }
  
  $link_path_alias = drupal_get_path_alias($link_path);
  
  if (function_exists('custom_url_rewrite_outbound')) {
    $options = array();
    custom_url_rewrite_outbound($link_path_alias, $options, $link_path_alias);
  }
  
  return substr($current_path_alias, 0, strlen($link_path_alias)) == $link_path_alias;
}

function phptemplate_menu_item($link, $has_children, $menu = '', $in_active_trail = FALSE, $extra_class = NULL) {
  static $zebra = FALSE;
  $zebra = !$zebra;
  $class = ($menu ? 'expanded' : ($has_children ? 'collapsed' : 'leaf'));
  if (!empty($extra_class)) {
    $class .= ' '. $extra_class;
  }
  
  if (!$in_active_trail) {
    $in_active_trail = is_link_html_in_active_trail($link);
  }
  
  if ($in_active_trail) {
    $class .= ' active-trail';
  }
  if ($zebra) {
    $class .= ' even';
  }
  else {
    $class .= ' odd';
  }
  return '<li class="'. $class .'">'. $link . $menu ."</li>\n";
}

function phptemplate_menu_local_task($link, $active = FALSE) {
  $class = '';
  if ($active) {
    $class .= ' active';
  }
  if (is_link_html_in_active_trail($link)) {
    $class .= ' active-trail';
  }
  return '<li class="' . $class . '">'. $link ."</li>\n";
}

function phptemplate_links($links, $attributes = array('class' => 'links')) {
  $output = '';

  if (count($links) > 0) {
    $output = '<ul'. drupal_attributes($attributes) .'>';

    $num_links = count($links);
    $i = 1;

    foreach ($links as $key => $link) {
      $class = $key;
      
      // Add first, last and active classes to the list of links to help out themers.
      if ($i == 1) {
        $class .= ' first';
      }
      if ($i == $num_links) {
        $class .= ' last';
      }
      if (isset($link['href']) && ($link['href'] == $_GET['q'] || ($link['href'] == '<front>' && drupal_is_front_page()))) {
        $class .= ' active';
      }
      
      if (isset($link['href'])) {
        if (is_link_href_in_active_trail($link['href'])) {
          $class .= ' active-trail';
        }
        // add active class for containing <li> and <a> if active-trail is set on the link itself
        if (strpos($link['attributes']['class'], 'active-trail') !== FALSE && strpos($class, 'active') === FALSE) {
           $class .= ' active';
           $link['attributes']['class'] .= ' active';
         }
        // Pass in $link as $options, they share the same keys.
        $link = l($link['title'], $link['href'], $link);
      }
      else if (!empty($link['title'])) {
        // Some links are actually not links, but we wrap these in <span> for adding title and class attributes
        if (empty($link['html'])) {
          $link['title'] = check_plain($link['title']);
        }
        $span_attributes = '';
        if (isset($link['attributes'])) {
          $span_attributes = drupal_attributes($link['attributes']);
        }
        $link = '<span'. $span_attributes .'>'. $link['title'] .'</span>';
      }

      $i++;
      $output .= '<li'. drupal_attributes(array('class' => $class)) .'>';
      $output .= $link;
      $output .= "</li>\n";
    }

    $output .= '</ul>';
  }
  return $output;
}