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Move Nav customizations into its own file

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Considering the nav customization/cleanup code is fairly involved and
important, it shouldn't be hidden in the middle of cleanup.php
This commit is contained in:
Scott Walkinshaw
2012-10-03 13:44:35 -04:00
parent 15d67295aa
commit 3df8d9901e
5 changed files with 111 additions and 101 deletions
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103
lib/nav.php Normal file
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@@ -0,0 +1,103 @@
<?php
/**
* Cleaner walker for wp_nav_menu()
*
* Walker_Nav_Menu (WordPress default) example output:
* <li id="menu-item-8" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-8"><a href="/">Home</a></li>
* <li id="menu-item-9" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-9"><a href="/sample-page/">Sample Page</a></l
*
* Roots_Nav_Walker example output:
* <li class="menu-home"><a href="/">Home</a></li>
* <li class="menu-sample-page"><a href="/sample-page/">Sample Page</a></li>
*/
class Roots_Nav_Walker extends Walker_Nav_Menu {
function check_current($classes) {
return preg_match('/(current[-_])|active|dropdown/', $classes);
}
function start_lvl(&$output, $depth = 0, $args = array()) {
$output .= "\n<ul class=\"dropdown-menu\">\n";
}
function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
$item_html = '';
parent::start_el($item_html, $item, $depth, $args);
if ($item->is_dropdown && ($depth === 0)) {
$item_html = str_replace('<a', '<a class="dropdown-toggle" data-toggle="dropdown" data-target="#"', $item_html);
$item_html = str_replace('</a>', ' <b class="caret"></b></a>', $item_html);
}
elseif (in_array('divider-vertical', $item->classes)) {
$item_html = '<li class="divider-vertical">';
}
elseif (in_array('divider', $item->classes)) {
$item_html = '<li class="divider">';
}
elseif (in_array('nav-header', $item->classes)) {
$item_html = '<li class="nav-header">' . $item->title;
}
$output .= $item_html;
}
function display_element($element, &$children_elements, $max_depth, $depth = 0, $args, &$output) {
$element->is_dropdown = !empty($children_elements[$element->ID]);
if ($element->is_dropdown) {
if ($depth === 0) {
$element->classes[] = 'dropdown';
} elseif ($depth === 1) {
$element->classes[] = 'dropdown-submenu';
}
}
parent::display_element($element, $children_elements, $max_depth, $depth, $args, $output);
}
}
/**
* Remove the id="" on nav menu items
* Return 'menu-slug' for nav menu classes
*/
function roots_nav_menu_css_class($classes, $item) {
$slug = sanitize_title($item->title);
$classes = preg_replace('/(current(-menu-|[-_]page[-_])(item|parent|ancestor))/', 'active', $classes);
$classes = preg_replace('/((menu|page)[-_\w+]+)+/', '', $classes);
$classes[] = 'menu-' . $slug;
$classes = array_unique($classes);
return array_filter($classes, 'is_element_empty');
}
add_filter('nav_menu_css_class', 'roots_nav_menu_css_class', 10, 2);
add_filter('nav_menu_item_id', '__return_null');
/**
* Clean up wp_nav_menu_args
*
* Remove the container
* Use Roots_Nav_Walker() by default
*/
function roots_nav_menu_args($args = '') {
$roots_nav_menu_args['container'] = false;
if (!$args['items_wrap']) {
$roots_nav_menu_args['items_wrap'] = '<ul class="%2$s">%3$s</ul>';
}
if (current_theme_supports('bootstrap-top-navbar')) {
$roots_nav_menu_args['depth'] = 3;
}
if (!$args['walker']) {
$roots_nav_menu_args['walker'] = new Roots_Nav_Walker();
}
return array_merge($args, $roots_nav_menu_args);
}
add_filter('wp_nav_menu_args', 'roots_nav_menu_args');