bootstrap_menu_items.module in Bootstrap menu items 7

Drupal Module: Bootstrap menu items

@author: Alexander Hass <http://drupal.org/user/85918>

File

bootstrap_menu_items.module

<?php

/**
 * @file
 * Drupal Module: Bootstrap menu items
 *
 * @author: Alexander Hass <http://drupal.org/user/85918>
 */

/**
 * Implements hook_menu().
 */
function bootstrap_menu_items_menu() {
  $items['<header>'] = array(
    'page callback' => 'drupal_not_found',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  $items['<separator>'] = array(
    'page callback' => 'drupal_not_found',
    'access callback' => TRUE,
    'type' => MENU_CALLBACK,
  );
  return $items;
}

/**
 * Implements MODULE_preprocess_HOOK().
 *
 * Adds appropriate attributes to the list item.
 *
 * @see theme_menu_link()
 */
function bootstrap_menu_items_preprocess_menu_link(&$variables) {

  // Add CSS classes to LI element.
  if (in_array($variables['element']['#href'], array(
    '<header>',
    '<separator>',
  ))) {
    switch ($variables['element']['#href']) {
      case '<header>':
        $variables['element']['#attributes']['class'][] = 'dropdown-header';
        break;
      case '<separator>':
        $variables['element']['#attributes']['class'][] = 'divider';
        $variables['element']['#attributes']['role'][] = 'separator';
        break;
    }
  }
}

/**
 * Override of theme_link().
 *
 * This function will render link if it is "header" or "separator". Otherwise
 * it will call originally overwritten menu_item_link function.
 */
function bootstrap_menu_items_link(array $variables) {
  if (in_array($variables['path'], array(
    '<header>',
    '<separator>',
  ))) {
    switch ($variables['path']) {
      case '<header>':
        $title = check_plain($variables['text']);
        break;
      case '<separator>':

        // Empty "menu link title" may confuse users in menu administration.
        // The text is hidden, so no problem.
        $title = check_plain($variables['text']);
        break;
    }
    return $title;
  }

  // Call the original theme function for normal menu link.
  return theme('bootstrap_menu_items_link_default', $variables);
}

/**
 * Implements hook_theme_registry_alter().
 *
 * We replace theme_menu_item_link with our own function.
 */
function bootstrap_menu_items_theme_registry_alter(&$registry) {

  // Save previous value from registry in case another theme overwrites menu_item_link
  $registry['bootstrap_menu_items_link_default'] = $registry['link'];
  $registry['link']['function'] = 'bootstrap_menu_items_link';
}

/**
 * Implements hook_form_FROM_ID_alter().
 */
function bootstrap_menu_items_form_menu_edit_item_alter(&$form, &$form_state) {

  // Some menu items have a pre-defined path which cannot be modified hence no default_value
  if (isset($form['link_path']['#default_value'])) {
    $default_value = $form['link_path']['#default_value'];
    if (preg_match('/^<header>\\/[0-9]+$/', $default_value)) {
      $default_value = '<header>';
    }
    elseif (preg_match('/^<separator>\\/[0-9]+$/', $default_value)) {
      $default_value = '<separator>';
    }
    $form['link_path']['#default_value'] = $default_value;
    $form['link_path']['#description'] .= ' ' . t('Enter "%header" to create a header item, enter "%separator" to generate divider item.', array(
      '%header' => '<header>',
      '%separator' => '<separator>',
    ));
  }
}

Functions

Name	Description
bootstrap_menu_items_form_menu_edit_item_alter	Implements hook_form_FROM_ID_alter().
bootstrap_menu_items_link	Override of theme_link().
bootstrap_menu_items_menu	Implements hook_menu().
bootstrap_menu_items_preprocess_menu_link	Implements MODULE_preprocess_HOOK().
bootstrap_menu_items_theme_registry_alter	Implements hook_theme_registry_alter().