Adding classes to menu items

Question

Hi I am developing a custom module for menus and I want to add active class to menu items based on the current path. For this I have tried theme_menu_link() but this function only provides the mlid(menu link ID) of the original links and not all the menu items. But I need the mlid of all individual menu links.

Is there any alternate hook for this functionality, or any other way to do this?

Answer 1

have a look at l() function in includes/common.inc:

...
if (($path == $_GET['q'] || ($path == '<front>' && drupal_is_front_page())) &&
    (empty($options['language']) || $options['language']->language == $language_url->language)) {
  $options['attributes']['class'][] = 'active';
}
...

Answer 2

Here is my jQuery solution, the advantage is you dont need to add a menu/alter hook.

$(document).ready(function() {
    var pathname = window.location.href;
        $('a').each(function() {
            var cur_a_url = $(this).attr('href');
            if(cur_a_url == pathname) {
                $(this).addClass('active');
            }
        });
});

But THIS is the perfect Drupal way.