From 3c86ad79c908e0cac0281f4a431eb7ba3a13ea81 Mon Sep 17 00:00:00 2001
From: Silvio <s1lv10@uol.com.br>
Date: Mon, 19 Oct 2009 11:01:40 -0200
Subject: Adding taxonomy render functions

New functions taxonomy_node_tree_list() and taxonomy_node_tree_has_unhidden_submenu()
---
 taxonomy_node_tree.module | 57 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 56 insertions(+), 1 deletion(-)

diff --git a/taxonomy_node_tree.module b/taxonomy_node_tree.module
index 22ed479..acbc1d0 100644
--- a/taxonomy_node_tree.module
+++ b/taxonomy_node_tree.module
@@ -19,7 +19,7 @@
  *   Taxonomy id.
  *
  * @return
- *   Array with parent terms of the vocabulary
+ *   Array with parent terms of the vocabulary.
  */
 function taxonomy_node_tree_parents($vid) {
   // Get all terms from a given vocabulary
@@ -213,3 +213,58 @@ function taxonomy_node_tree_taxonomy_get_tree($vid, $parent = 0, $depth = -1, $m
   return $tree;
 
 }
+
+
+/**
+ * Recursively build the menu.
+ *
+ * @ingroup themeable
+ */
+function taxonomy_node_tree_list($menu, $id, $class, &$level = NULL) {
+
+  if ($level == NULL) {
+    $output  = '<ul id="' . $id .'" class="'. $class .'">';
+    $output .= implode((array) module_invoke_all('taxonomy_node_tree_list'));
+    $level = 0;
+  }
+  else {
+    $output = '<ul id="'. $id .'[ul]['. $level .']" class="'. $class .'">';
+  }
+
+  foreach ($menu as $menu_item) {
+    if ($menu_item['link']['hidden'] == 0) {
+      $output .= '<li>';
+      if ($menu_item['below'] !== FALSE && taxonomy_node_tree_has_unhidden_submenu($menu_item['below'])) {
+        $level++;
+        $output .= $menu_item['link']['title'];
+        $output .= taxonomy_node_tree_list($menu_item['below'], $id, $class, $level);
+      }
+      else {
+        $output .= theme('menu_item_link', $menu_item['link']);
+      }
+      $output .= '</li>';
+    }
+  }
+
+  $output .= '</ul>';
+  return $output;
+
+}
+
+/**
+ * Check whether a menu has at least one unhidden submenu.
+ */
+function taxonomy_node_tree_has_unhidden_submenu($menu = FALSE) {
+
+  if ($menu == FALSE) {
+    return FALSE;
+  }
+
+  foreach ($menu as $menu_item) {
+    if ($menu_item['link']['hidden'] == 0) {
+      return TRUE;
+    }
+  }
+
+  return FALSE;
+}
-- 
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