Index: README.txt
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/colorbox/README.txt,v
retrieving revision 1.8.2.1
diff -u -p -u -p -r1.8.2.1 README.txt
--- README.txt	28 Jun 2010 17:30:26 -0000	1.8.2.1
+++ README.txt	20 Aug 2010 05:49:23 -0000
@@ -126,6 +126,25 @@ http://colorpowered.com/colorbox/#help_p
 The default style in Colorbox module does not have this problem.
 
 
+Hooks:
+-----
+hook_colorbox_form_access($form_id);
+
+Allow other modules to control access to forms opening in Colorbox.
+
+Example:
+/**
+ * Implementation of hook_colorbox_form_access().
+ */
+function my_module_colorbox_form_access($form_id) {
+  $access = FALSE;
+  if ($form_id == 'forward_form') {
+    return user_access('access forward');
+  }
+  return $access;
+}
+
+
 Contributions:
 -------------
 * Porting all features from the Thickbox module,
@@ -138,4 +157,4 @@ Contributions:
 
 Last updated:
 ------------
-$Id: README.txt,v 1.8.2.1 2010/06/28 17:30:26 frjo Exp $
\ No newline at end of file
+$Id: README.txt,v 1.8.2.1 2010/06/28 17:30:26 frjo Exp $
Index: colorbox.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/colorbox/colorbox.module,v
retrieving revision 1.19.2.3
diff -u -p -u -p -r1.19.2.3 colorbox.module
--- colorbox.module	25 Jul 2010 17:35:28 -0000	1.19.2.3
+++ colorbox.module	20 Aug 2010 05:49:23 -0000
@@ -94,6 +94,9 @@ function colorbox_menu() {
  * Colorbox menu access check.
  */
 function _colorbox_form_page_access($form_id) {
+  $access = FALSE;
+
+  // First check if this is one of the forms Colorbox support out of the box.
   switch ($form_id) {
     case 'contact_mail_page':
       $access = user_access('access site-wide contact form');
@@ -106,9 +109,15 @@ function _colorbox_form_page_access($for
     case 'user_login_block':
       $access = user_is_anonymous();
       break;
-    default:
-      // All other forms get no access.
-      $access = FALSE;
+  }
+
+  // Invoke hook_colorbox_form_access for all modules.
+  if (!$access) {
+    foreach (module_implements('colorbox_form_access') as $module) {
+      if ($access = module_invoke($module, 'colorbox_form_access', $form_id)) {
+        return $access;
+      }
+    }
   }
 
   return $access;