Set Breadcrumb when using Panels -> node/%

Right now tokens are only used for auto Path/Title generation.

If I change it to this
Titles:
[node:title]

Paths:
node/[node:nid]

Still no go.

Been testing and the problem involves Panels. If you override the node with panels, breadcrumbs via rules doesn't work. Breadcrumbs do work with panels if you use Menu Breadcrumb, and have a menu set for each item.

Steps to have panels take over nodes
Enable Panel pages
Page Title: %node
Path: node/%
Arguments: Add Node ID

Is this a wait and see, or do I need to ditch panels to get Breadcrumbs set by rules working?

Opened an issue in Panels
http://drupal.org/node/364280

Took a peek at Menu Breadcrumbs, since it works.

/**
 * Implementation of hook_init().
 */
function menu_breadcrumb_init() {
  if (variable_get('menu_breadcrumb_determine_menu', 1)) {
    $menu_item = menu_get_item();
    $menu_link = menu_link_load(db_result(db_query("SELECT mlid FROM {menu_links} WHERE link_path = '%s'", $menu_item['href'])));
    $use_menu = $menu_link['menu_name'];
    menu_set_active_menu_name($use_menu);
  }

  $breadcrumb = drupal_get_breadcrumb();
  
  if (variable_get('menu_breadcrumb_append_node_title', 0) == 1) {
    if (variable_get('menu_breadcrumb_append_node_url', 0) == 1) {
      $breadcrumb[] = l(drupal_get_title(), $_GET['q']);
    }
    else {
      $breadcrumb[] = drupal_get_title();
    }
  }
    
  if (count($breadcrumb) == 1 && variable_get('menu_breadcrumb_hide_on_single_item', 0)) {
    $breadcrumb = array();
  }
    
  drupal_set_breadcrumb($breadcrumb);
}

Here's the code in system.rules.inc

/**
 * Action Implementation: Set breadcrumb.
 */
function rules_action_set_breadcrumb($settings) {
  $titles = explode("\n", $settings['titles']);
  $paths = explode("\n", $settings['paths']);

  $trail = array(l(t('Home'), ''));
  for ($i = 0; $i < count($titles); $i++) {
    // Skip empty titles
    if ($title = trim($titles[$i])) {
      // Output plaintext instead of a link if there is a title
      // without a path.
      $path = trim($paths[$i]);
      if (strlen($path) > 0 && $path != '<none>') {
        $trail[] = l($title, trim($paths[$i]));
      }
      else {
        $trail[] = check_plain($title);
      }
    }
  }
  drupal_set_breadcrumb($trail);
}

Looks like menu_breadcrumb_init() always get's called, thats why it grabs the breadcrumb $breadcrumb = drupal_get_breadcrumb(); So no matter what, it re saves the breadcrumb. What if Rules had a similar hook for the breadcrumb, to get around issues like this one?

Panels doesn't invoke the NodeAPI if your only using CCK fields. Panels sets up a pseudo node when using node/%.
Rules could benefit if it used hook_init() instead of hook_nodeapi(), thus it would work on any page; not just nodes.

@fago

Sweet, Thanks!!!