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Fixes #542 - Simplify nav & add 3rd level dropdown

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This commit is contained in:
Scott Walkinshaw
2012-09-12 12:34:30 -06:00
parent 580d3f26d1
commit d3497a7063
2 changed files with 39 additions and 82 deletions
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1
CHANGELOG.md
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@@ -1,4 +1,5 @@
### HEAD
* Simplify nav walker and support 3rd level dropdowns
* Update to Bootstrap 2.1.1, jQuery 1.8.1, Modernizr 2.6.2
* Add bundled docs
* Update all templates to use [PHP Alternative Syntax](http://php.net/manual/en/control-structures.alternative-syntax.php)

120
lib/cleanup.php
View File

@@ -407,17 +407,6 @@ function roots_excerpt_more($more) {
add_filter('excerpt_length', 'roots_excerpt_length');
add_filter('excerpt_more', 'roots_excerpt_more');
/**
* Replace various active menu class names with "active"
*/
function roots_wp_nav_menu($text) {
$text = preg_replace('/(current(-menu-|[-_]page[-_])(item|parent|ancestor))/', 'active', $text);
$text = preg_replace('/( active){2,}/', ' active', $text);
return $text;
}
add_filter('wp_nav_menu', 'roots_wp_nav_menu');
/**
* Cleaner walker for wp_nav_menu()
*
@@ -439,88 +428,56 @@ class Roots_Nav_Walker extends Walker_Nav_Menu {
}
function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0) {
global $wp_query;
$indent = ($depth) ? str_repeat("\t", $depth) : '';
$item_html = '';
parent::start_el($item_html, $item, $depth, $args);
$slug = sanitize_title($item->title);
$id = 'menu-' . $slug;
$class_names = $value = '';
$li_attributes = '';
$classes = empty($item->classes) ? array() : (array) $item->classes;
$classes = array_filter($classes, array(&$this, 'check_current'));
if ($args->has_children) {
$classes[] = 'dropdown';
$li_attributes .= ' data-dropdown="dropdown"';
if ($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>', $item_html);
}
if ($custom_classes = get_post_meta($item->ID, '_menu_item_classes', true)) {
foreach ($custom_classes as $custom_class) {
$classes[] = $custom_class;
}
}
$class_names = join(' ', apply_filters('nav_menu_css_class', array_filter($classes), $item, $args));
$class_names = $class_names ? ' class="' . $id . ' ' . esc_attr($class_names) . '"' : ' class="' . $id . '"';
$output .= $indent . '<li' . $class_names . '>';
$attributes = ! empty($item->attr_title) ? ' title="' . esc_attr($item->attr_title) .'"' : '';
$attributes .= ! empty($item->target) ? ' target="' . esc_attr($item->target ) .'"' : '';
$attributes .= ! empty($item->xfn) ? ' rel="' . esc_attr($item->xfn ) .'"' : '';
$attributes .= ! empty($item->url) ? ' href="' . esc_attr($item->url ) .'"' : '';
$attributes .= ($args->has_children) ? ' class="dropdown-toggle" data-toggle="dropdown" data-target="#"' : '';
$item_output = $args->before;
$item_output .= '<a'. $attributes .'>';
$item_output .= $args->link_before . apply_filters('the_title', $item->title, $item->ID) . $args->link_after;
$item_output .= ($args->has_children) ? ' <b class="caret"></b>' : '';
$item_output .= '</a>';
$item_output .= $args->after;
$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
$output .= $item_html;
}
function display_element($element, &$children_elements, $max_depth, $depth = 0, $args, &$output) {
if (!$element) { return; }
$element->is_dropdown = !empty($children_elements[$element->ID]);
$id_field = $this->db_fields['id'];
if (is_array($args[0])) {
$args[0]['has_children'] = !empty($children_elements[$element->$id_field]);
} elseif (is_object($args[0])) {
$args[0]->has_children = !empty($children_elements[$element->$id_field]);
}
$cb_args = array_merge(array(&$output, $element, $depth), $args);
call_user_func_array(array(&$this, 'start_el'), $cb_args);
$id = $element->$id_field;
if (($max_depth == 0 || $max_depth > $depth+1) && isset($children_elements[$id])) {
foreach ($children_elements[$id] as $child) {
if (!isset($newlevel)) {
$newlevel = true;
$cb_args = array_merge(array(&$output, $depth), $args);
call_user_func_array(array(&$this, 'start_lvl'), $cb_args);
}
$this->display_element($child, $children_elements, $max_depth, $depth + 1, $args, $output);
if ($element->is_dropdown) {
if ($depth === 0) {
$element->classes[] = 'dropdown';
} elseif ($depth === 1) {
$element->classes[] = 'dropdown-submenu';
}
unset($children_elements[$id]);
}
if (isset($newlevel) && $newlevel) {
$cb_args = array_merge(array(&$output, $depth), $args);
call_user_func_array(array(&$this, 'end_lvl'), $cb_args);
}
$cb_args = array_merge(array(&$output, $element, $depth), $args);
call_user_func_array(array(&$this, 'end_el'), $cb_args);
parent::display_element($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($classes, 'is_element_empty');
}
function is_element_empty($element) {
$element = trim($element);
return empty($element) ? false : true;
}
add_filter('nav_menu_css_class', 'roots_nav_menu_css_class', 10, 2);
add_filter('nav_menu_item_id', '__return_null');
/**
* Clean up wp_nav_menu_args
*
@@ -534,9 +491,8 @@ function roots_nav_menu_args($args = '') {
$roots_nav_menu_args['items_wrap'] = '<ul class="%2$s">%3$s</ul>';
}
// Bootstrap's navbar doesn't support multi-level dropdowns
if (current_theme_supports('bootstrap-top-navbar')) {
$roots_nav_menu_args['depth'] = 2;
$roots_nav_menu_args['depth'] = 3;
}
if (!$args['walker']) {