Fix for ticket #366

1) Stored the menu element type in the menu element
2) Scanned the menu before display removing any empty sub menus.
Went with the removal approach because there will more users than developers

Signed-off-by:  <unostar@danalan.info>

2 files changed, 26 insertions, 7 deletions

diff --git a/modules/gallery/libraries/Menu.php b/modules/gallery/libraries/Menu.php
index 83bd1616..79274057 100644
--- a/modules/gallery/libraries/Menu.php
+++ b/modules/gallery/libraries/Menu.php
@@ -23,6 +23,11 @@ class Menu_Element {
   public $css_id;
   public $css_class;
   public $id;
+  public $type;
+
+  public function __construct($type) {
+    $this->type = $type;
+  }
 
   /**
    * Set the id
@@ -125,26 +130,26 @@ class Menu_Core extends Menu_Element {
   public static function factory($type) {
     switch($type) {
     case "link":
-      return new Menu_Element_Link();
+      return new Menu_Element_Link($type);
 
     case "dialog":
-      return new Menu_Element_Dialog();
+      return new Menu_Element_Dialog($type);
 
     case "root":
-      $menu = new Menu();
-      $menu->is_root = true;
-      return $menu;
+      return  new Menu("root");
 
     case "submenu":
-      return new Menu();
+      return new Menu("submenu");
 
     default:
       throw Exception("@todo UNKNOWN_MENU_TYPE");
     }
   }
 
-  public function __construct() {
+  public function __construct($type) {
+    parent::__construct($type);
     $this->elements = array();
+    $this->is_root = $type == "root";
   }
 
   /**
diff --git a/modules/gallery/libraries/Theme_View.php b/modules/gallery/libraries/Theme_View.php
index 31c2faa7..904a3c07 100644
--- a/modules/gallery/libraries/Theme_View.php
+++ b/modules/gallery/libraries/Theme_View.php
@@ -103,11 +103,25 @@ class Theme_View_Core extends View {
           call_user_func_array(array($class, "site"), array(&$menu, $this));
         }
       }
+
+      $this->_remove_empty_items($menu);
     }
 
     print $menu;
   }
 
+  private function _remove_empty_items($menu) {
+    foreach ($menu->elements as $target_id => $element) {
+      if ($element->type == "submenu") {
+        if (empty($element->elements)) {
+          $menu->remove($target_id);
+        } else {
+          $this->_remove_empty_items($element);
+        }
+      }
+    }
+  }
+
   public function album_menu() {
     $this->_menu("album");
   }