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<?php |
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/* |
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* Modified soil nav walker to add the missing dropdown to the parent li of the ul.sub-menu |
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*/ |
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namespace Roots\Soil\Nav; |
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use Roots\Soil\Utils; |
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/** |
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* Cleaner walker for wp_nav_menu() |
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* |
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* Walker_Nav_Menu (WordPress default) example output: |
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* <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> |
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* <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 |
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* |
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* NavWalker example output: |
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* <li class="menu-home"><a href="/">Home</a></li> |
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* <li class="menu-sample-page"><a href="/sample-page/">Sample Page</a></li> |
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* |
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* You can enable/disable this feature in functions.php (or lib/config.php if you're using Sage): |
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* add_theme_support('soil-nav-walker'); |
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*/ |
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class NavWalker extends \Walker_Nav_Menu { |
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private $cpt; // Boolean, is current post a custom post type |
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private $archive; // Stores the archive page for current URL |
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public function __construct() { |
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add_filter('nav_menu_css_class', array($this, 'cssClasses'), 10, 3); |
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add_filter('nav_menu_item_id', '__return_null'); |
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$cpt = get_post_type(); |
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$this->cpt = in_array($cpt, get_post_types(array('_builtin' => false))); |
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$this->archive = get_post_type_archive_link($cpt); |
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} |
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public function checkCurrent($classes) { |
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return preg_match('/(current[-_])|active/', $classes); |
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} |
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// @codingStandardsIgnoreStart |
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public function display_element($element, &$children_elements, $max_depth, $depth = 0, $args, &$output) { |
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$element->is_subitem = ((!empty($children_elements[$element->ID]) && (($depth + 1) < $max_depth || ($max_depth === 0)))); |
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if ($element->is_subitem) { |
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foreach ($children_elements[$element->ID] as $child) { |
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if ($child->current_item_parent || Utils\url_compare($this->archive, $child->url)) { |
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$element->classes[] = 'active'; |
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} |
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} |
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} |
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$element->is_active = strpos($this->archive, $element->url); |
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if ($element->is_active) { |
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$element->classes[] = 'active'; |
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} |
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parent::display_element($element, $children_elements, $max_depth, $depth, $args, $output); |
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} |
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// @codingStandardsIgnoreEnd |
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public function cssClasses($classes, $item, $args) { |
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$slug = sanitize_title($item->title); |
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if ($this->cpt) { |
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$classes = str_replace('current_page_parent', '', $classes); |
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if (Utils\url_compare($this->archive, $item->url)) { |
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$classes[] = 'active'; |
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} |
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} |
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if ($args->walker->has_children) { |
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$classes[] = 'dropdown'; |
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} |
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$classes = preg_replace('/(current(-menu-|[-_]page[-_])(item|parent|ancestor))/', 'active', $classes); |
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$classes = preg_replace('/^((menu|page)[-_\w+]+)+/', '', $classes); |
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$classes[] = 'menu-' . $slug; |
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$classes = array_unique($classes); |
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return array_filter($classes, 'Roots\\Soil\\Utils\\is_element_empty'); |
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} |
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} |
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/** |
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* Clean up wp_nav_menu_args |
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* |
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* Remove the container |
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* Remove the id="" on nav menu items |
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*/ |
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function nav_menu_args($args = '') { |
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$nav_menu_args = []; |
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$nav_menu_args['container'] = false; |
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if (!$args['items_wrap']) { |
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$nav_menu_args['items_wrap'] = '<ul class="%2$s">%3$s</ul>'; |
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} |
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if (!$args['walker']) { |
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$nav_menu_args['walker'] = new NavWalker(); |
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} |
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return array_merge($args, $nav_menu_args); |
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} |
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add_filter('wp_nav_menu_args', __NAMESPACE__ . '\\nav_menu_args'); |
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add_filter('nav_menu_item_id', '__return_null'); |