Version 7.x-0.5(beta)

<?php
/**
 * menurolerights module file
 *
 * Contains all hooks for this module. The module accepts or rejects user
 * actions in the menu overview form depending on role rules.
 *
 * @author Wolfgang Hauertmann <info@hauertmann.com>
 * @copyright (c) 2014 Wolfgang Hauertmann
 * @license http://www.gnu.org/licenses/gpl-2.0.html GPL-2.0
 *
 */

/**
 * Constants for "select" form element
 */
 define("SEL_NONE",     0);
 define("SEL_DELETE",   1);
 define("SEL_EDIT",     2);
 define("SEL_NEW",      3);
 define("SEL_ACTIVE",   4);
 define("SEL_INACTIVE", 5);
 define("SEL_CHANGE",   6);

/*
 * Includes all convenience functions to alter menu_overview_form
 */
module_load_include('inc', 'menurolerights', 'inc/form_alter_menu_overview');

/*
 * Includes helper methods for alter node form (add, edit content)
 */
module_load_include('inc', 'menurolerights', 'inc/form_alter_node_form_helper');

/*
 * Includes all convenience functions to alter node form (add, edit content)
 */
module_load_include('inc', 'menurolerights', 'inc/form_alter_node_form');

/*
 * Includes helper methods of form for module settings
 */
module_load_include('inc', 'menurolerights', 'inc/form_module_settings_helper');

/*
 * Includes the form for module settings
 */
module_load_include('inc', 'menurolerights', 'inc/form_module_settings');

/**
 * Implements hook_form_alter();
 *
 * @param array $form (call by ref)
 *   Description array of all form elements
 * @return void
 */
function menurolerights_form_alter(&$form, &$form_state, $form_id) {

  // 'Menu overview form' is the form where you can arrange the menu hierarchy
  // by drag & drop and where you can edit and delete menu items.
  // Path: admin/structure/menu/manage/<menu_name>. <menu_name> is e.g. 'main-menu'
  if ($form_id == 'menu_overview_form') {
    _menurolerights_form_alter_menu_overview_form($form);
  }

  // Forms where you edit content: 'article_node_form', 'news_node_form', etc.
  // Paths e.g.: /node/add/article, /node/edit/article, ...
  if (isset($form_state['build_info']['base_form_id'])
   &&($form_state['build_info']['base_form_id'] == 'node_form')) {
    // Add an after_build function to process when everything's complete.
    // Main task here is to change options of form element 'menu-parent-select'.
    $form['#after_build'][] = '_node_form_after_build';
  }


}

/**
 * Implements hook_help().
 */
function menurolerights_help($path, $arg) {
  switch ($path) {
    case 'admin/help#menurolerights':
       return _menurolerights_information();
  }
}

/**
 * Helper function for menurolerights_help
 *
 * Returns information about the module.
 */
function _menurolerights_information() {
  return t("<p>This module provides a possiblity to accept or reject user
    actions in the menu overview form depending on role rules.</p><p>A user
    who has the permission for this module can assign access rules to every
    submenu area of every menu !link.</p>",
    array('!link' => l(t("here"), "admin/config/content/menurolerights"))
  );
}

/**
 * Implements hook_permission().
 *
 * Tells to drupal what permissions the module have
 *
 * @return array
 *   Return an array of permissions
 */
function menurolerights_permission() {
  return array(
    'administer menurolerights' => array(
      'title' => t('Administer the module menurolerights, which allows to set role rights for menu management.'),
      'description' => t('Perform administration tasks for menurolerights.'),
      'restrict access' => TRUE,
    ),
  );
}

/**
* Implements hook_menu()
*/
function menurolerights_menu(){

  /* Module settings */
  $items['admin/config/content/menurolerights'] = array(
    'title' => 'Set menu role rights',
    'description' => 'Accepts or rejects user actions in the menu overview form depending on role rules',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('menurolerights_form'),
    'access arguments' => array('access administration pages'),
    'type' => MENU_NORMAL_ITEM,
  );

  return $items;
}