Keep taxonomy menu open when opening node

Been busy :)

First to clarify what I need:
Term needs to appear automatically into tree menu (currently using taxonomy menu module for that).
Tree menu must keep its expanding level (path) when in node page (node page overrided with Views module)
Breadcrumbs must appear correctly on pages that list terms (when I click on taxonomy menu item) and also on node pages (being correct path representing terms tree).

So for example if I have:

Categories -> Fruits

When I am in fruits list pages I need to see tree menu opened and breadcrumbs set at Categories -> Fruits and when I click on specific fruit breadcrumbs must remain Categories -> Fruits and tree menu must remain open.

Soliaris: I put it in Views module Page: Header, changed input filter to php first.
Menu trails does not seem to do this automatically, I have to set it up by hand when I add new term. Am I mistaken?

checker: Could you clarify why this is not a good way and what alternative way you recommend.

I got everything to work, including breadcrumbs with hacking in some php code, everything in views header.

$node = arg(1);
$catname = 'category';

if($GLOBALS['user']->uid > 0)  {
  $block = module_invoke('block', 'block', 'view', 3);
  echo $block['content'];
}
$terms = taxonomy_node_get_terms(node_load($node));
$term = array_shift($terms);
$parents = taxonomy_get_parents_all($term->tid);
$parents = array_reverse($parents);

//krumo($parents);

$names = array(l('Home', '/'), l('Categories', "$catname/$term->vid"));
foreach($parents as $parent) {
  $parents_str .= "$parent->tid/"; 
  $names[] = l($parent->name,  "$catname/$term->vid/$parents_str");
}
$path = "$catname/$term->vid/$parents_str";
//echo $path;
drupal_set_breadcrumb($names);
menu_set_active_item($path);

module_invoke is needed to circumvent the problem of node edit tabs disappearing when fiddling with menu_set_active_path. Just created my own custom php block that I show with module_invoke. Following is the block code.

<?php
$node = arg(1);
?>
<div style="overflow: hidden">
<ul class="tabs primary">
<li class="active" >
   <a href="/drupal/node/<?php echo $node ?>" class="active">View</a>
</li> 
 <li >
   <a href="/drupal/node/<?php echo $node ?>/edit">Edit</a>
</li> 
<li >
    <a href="/drupal/node/<?php echo $node ?>/devel/load">Dev load</a>
</li>
 <li >
    <a href="/drupal/node/<?php echo $node ?>/devel/render">Dev render</a>
</li> 
</ul>
</div>

I still would be interested to know how to do this with existing modules.

Thank you for the information and help.

I tried out the new version of the module and got it to work. For some reason I had to recreate my whole vocabulary manually, I could not get my old vocabulary to work.

There was one part of your answer that confused me though. You said:

What you want to do can be handled using a custom module an implementing hook_menu. You could stick the code at the beginning of the page callback function, then call views_embed_view to display the view.

You mean this as answer to my original problem to keep taxonomy menu opened when inside node view? I understand about views_embed_view but how can that help me to keep taxonomy menu open (like I currently do with menu_set_active_item()).

Keep up the good work.

Hello,

I kind of thought that maybe you misread :). Anyway since nobody suggested better way than my code currently does here is the revised code that works with new taxonomy menu 2.0 default menu path type (drupal core of taxonomy/term/{node_id}). I put this code inside view that overrides node view.

- Keeps taxonomy menu expanded when viewing node.
- Keeps breadcrumbs path
- since menu_set_active_item() changes the path, local editing tabs no longer work, so we have to reinsert them.
This is the part that I most dislike about this solution

The code that goes inside view:

$path_prefix = 'taxonomy/term/';
$node_id = arg(1);
$node = node_load($node_id);
if(is_array($node->taxonomy)) {
     if($GLOBALS['user']->uid > 0)  {
          $block = module_invoke('block', 'block', 'view', 3);
          echo $block['content'];
   } 
    $term = array_shift($node->taxonomy);
    $parents = taxonomy_get_parents_all($term->tid);
    $parents = array_reverse($parents);

   //krumo($parents);

   $names = array(l('Home', '/'));
   
   foreach($parents as $parent) {
         $names[] = l($parent->name,  $path_prefix.$parent->tid);_
   }
   drupal_set_breadcrumb($names);
   menu_set_active_item($path_prefix.$term->tid);
}

Code to put in block that creates node editing local tabs

<?php
$node = arg(1);
?>
<div style="overflow: hidden">
<ul class="tabs primary">
<li class="active" >
   <a href="<?php echo $node ?>" class="active">View</a>
</li> 
 <li >
   <a href="<?php echo $node ?>/edit">Edit</a>
</li> 
<li >
    <a href="<?php echo $node ?>/devel/load">Dev load</a>
</li>
 <li >
    <a href="<?php echo $node ?>/devel/render">Dev render</a>
</li> 
</ul>
</div>

All suggestions how to improve the code, implement this with existing modules (like how to do this with menu trails without manual configuration after adding new term) are very welcome. And special thanks for indytechcook for getting this module back on the game.