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feat: update WP Bootstrap Navwalker

pull/620/head^2
Seaton Jiang 2024-01-16 18:24:42 +08:00
parent abc6b58026
commit 8b9fd365eb
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GPG Key ID: 1E85ACC90F7EB73E
1 changed files with 215 additions and 174 deletions
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257
inc/theme-navwalker.php
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@ -1,4 +1,5 @@
<?php
/**
* WP Bootstrap Navwalker
*
@ -8,7 +9,7 @@
* Plugin Name: WP Bootstrap Navwalker
* Plugin URI: https://github.com/wp-bootstrap/wp-bootstrap-navwalker
* Description: A custom WordPress nav walker class to implement the Bootstrap 4 navigation style in a custom theme using the WordPress built in menu manager.
* Author: Edward McIntyre - @twittem, WP Bootstrap, William Patton - @pattonwebz
* Author: Edward McIntyre - @twittem, WP Bootstrap, William Patton - @pattonwebz, IanDelMar - @IanDelMar
* Version: 4.3.0
* Author URI: https://github.com/wp-bootstrap
* GitHub Plugin URI: https://github.com/wp-bootstrap/wp-bootstrap-navwalker
@ -31,16 +32,33 @@ function attributes_filter($var)
add_filter('nav_menu_css_class', 'attributes_filter', 100, 1);
add_filter('nav_menu_item_id', 'attributes_filter', 100, 1);
add_filter('page_css_class', 'attributes_filter', 100, 1);
if (!class_exists('WP_Bootstrap_Navwalker')) {
if (!class_exists('WP_Bootstrap_Navwalker')) :
/**
* WP_Bootstrap_Navwalker class.
*
* @extends Walker_Nav_Menu
*/
class WP_Bootstrap_Navwalker extends Walker_Nav_Menu
{
/**
* Whether the items_wrap contains schema microdata or not.
*
* @since 4.2.0
* @var boolean
*/
private $has_schema = false;
/**
* Ensure the items_wrap argument contains microdata.
*
* @since 4.2.0
*/
public function __construct()
{
if (!has_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'))) {
add_filter('wp_nav_menu_args', array($this, 'add_schema_to_navbar_ul'));
}
}
/**
* Starts the list before the elements are added.
*
@ -50,9 +68,9 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
*
* @param string $output Used to append additional content (passed by reference).
* @param int $depth Depth of menu item. Used for padding.
* @param stdClass $args An object of wp_nav_menu() arguments.
* @param WP_Nav_Menu_Args $args An object of wp_nav_menu() arguments.
*/
public function start_lvl(&$output, $depth = 0, $args = array())
public function start_lvl(&$output, $depth = 0, $args = null)
{
if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
$t = '';
@ -91,7 +109,7 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
// Build a string to use as aria-labelledby.
$labelledby = 'aria-labelledby="' . esc_attr(end($matches[2])) . '"';
}
$output .= "{$n}{$indent}<ul$class_names $labelledby role=\"menu\">{$n}";
$output .= "{$n}{$indent}<ul$class_names $labelledby>{$n}";
}
/**
@ -103,12 +121,12 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
* @see Walker_Nav_Menu::start_el()
*
* @param string $output Used to append additional content (passed by reference).
* @param WP_Post $item Menu item data object.
* @param WP_Nav_Menu_Item $item Menu item data object.
* @param int $depth Depth of menu item. Used for padding.
* @param stdClass $args An object of wp_nav_menu() arguments.
* @param WP_Nav_Menu_Args $args An object of wp_nav_menu() arguments.
* @param int $id Current item ID.
*/
public function start_el(&$output, $item, $depth = 0, $args = array(), $id = 0)
public function start_el(&$output, $item, $depth = 0, $args = null, $id = 0)
{
if (isset($args->item_spacing) && 'discard' === $args->item_spacing) {
$t = '';
@ -119,8 +137,21 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
}
$indent = ($depth) ? str_repeat($t, $depth) : '';
if (false !== strpos($args->items_wrap, 'itemscope') && false === $this->has_schema) {
$this->has_schema = true;
$args->link_before = '<span itemprop="name">' . $args->link_before;
$args->link_after .= '</span>';
}
$classes = empty($item->classes) ? array() : (array) $item->classes;
// Updating the CSS classes of a menu item in the WordPress Customizer preview results in all classes defined
// in that particular input box to come in as one big class string.
$split_on_spaces = function ($class) {
return preg_split('/\s+/', $class);
};
$classes = $this->flatten(array_map($split_on_spaces, $classes));
/*
* Initialize some holder variables to store specially handled item
* wrappers and icons.
@ -134,7 +165,7 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
* NOTE: linkmod and icon class arrays are passed by reference and
* are maybe modified before being used later in this function.
*/
$classes = self::separate_linkmods_and_icons_from_classes($classes, $linkmod_classes, $icon_classes, $depth);
$classes = $this->separate_linkmods_and_icons_from_classes($classes, $linkmod_classes, $icon_classes, $depth);
// Join any icon classes plucked from $classes into a string.
$icon_class_string = join(' ', $icon_classes);
@ -142,16 +173,18 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
/**
* Filters the arguments for a single nav menu item.
*
* WP 4.4.0
* @since WP 4.4.0
*
* @param stdClass $args An object of wp_nav_menu() arguments.
* @param WP_Post $item Menu item data object.
* @param WP_Nav_Menu_Args $args An object of wp_nav_menu() arguments.
* @param WP_Nav_Menu_Item $item Menu item data object.
* @param int $depth Depth of menu item. Used for padding.
*
* @var WP_Nav_Menu_Args
*/
$args = apply_filters('nav_menu_item_args', $args, $item, $depth);
// Add .dropdown or .active classes where they are needed.
if (isset($args->has_children) && $args->has_children) {
if ($this->has_children) {
$classes[] = 'dropdown';
}
if (in_array('current-menu-item', $classes, true) || in_array('current-menu-parent', $classes, true)) {
@ -176,43 +209,37 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
* @since WP 4.1.0 The `$depth` parameter was added.
*
* @param string $menu_id The ID that is applied to the menu item's `<li>` element.
* @param WP_Post $item The current menu item.
* @param stdClass $args An object of wp_nav_menu() arguments.
* @param WP_Nav_Menu_Item $item The current menu item.
* @param WP_Nav_Menu_Args $args An object of wp_nav_menu() arguments.
* @param int $depth Depth of menu item. Used for padding.
*/
$id = apply_filters('nav_menu_item_id', 'menu-item-' . $item->ID, $item, $args, $depth);
$id = $id ? ' id="' . esc_attr($id) . '"' : '';
if ($args->has_children) {
$output .= $indent . '<li' . $id . ' class="nav-item dropdown" ' . '>';
} else {
$output .= $indent . '<li' . $id . ' class="nav-item" ' . '>';
}
$output .= $indent . '<li ' . $id . $class_names . '>';
// Initialize array for holding the $atts for the link item.
$atts = array();
/*
* Set title from item to the $atts array - if title is empty then
* default to item title.
*/
if (empty($item->attr_title)) {
$atts['title'] = !empty($item->title) ? strip_tags($item->title) : '';
$atts['title'] = !empty($item->attr_title) ? $item->attr_title : '';
$atts['target'] = !empty($item->target) ? $item->target : '';
if ('_blank' === $item->target && empty($item->xfn)) {
$atts['rel'] = 'noopener noreferrer';
} else {
$atts['title'] = $item->attr_title;
$atts['rel'] = !empty($item->xfn) ? $item->xfn : '';
}
$atts['target'] = !empty($item->target) ? $item->target : '';
$atts['rel'] = !empty($item->xfn) ? $item->xfn : '';
// If the item has children, add atts to the <a>.
if (isset($args->has_children) && $args->has_children && 0 === $depth && $args->depth > 1) {
// If the item has_children add atts to <a>.
if ($this->has_children && 0 === $depth) {
$atts['href'] = '#';
$atts['data-toggle'] = 'dropdown';
$atts['aria-haspopup'] = 'true';
$atts['aria-expanded'] = 'false';
$atts['class'] = 'dropdown-toggle nav-link';
$atts['id'] = 'menu-item-dropdown-' . $item->ID;
} else {
if (true === $this->has_schema) {
$atts['itemprop'] = 'url';
}
$atts['href'] = !empty($item->url) ? $item->url : '#';
// For items in dropdowns use .dropdown-item instead of .nav-link.
if ($depth > 0) {
@ -225,7 +252,8 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
$atts['aria-current'] = $item->current ? 'page' : '';
// Update atts of this item based on any custom linkmod classes.
$atts = self::update_atts_for_linkmod_type($atts, $linkmod_classes);
$atts = $this->update_atts_for_linkmod_type($atts, $linkmod_classes);
// Allow filtering of the $atts array before using it.
$atts = apply_filters('nav_menu_link_attributes', $atts, $item, $args, $depth);
@ -239,7 +267,7 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
}
// Set a typeflag to easily test if this is a linkmod or not.
$linkmod_type = self::get_linkmod_type($linkmod_classes);
$linkmod_type = $this->get_linkmod_type($linkmod_classes);
// START appending the internal item contents to the output.
$item_output = isset($args->before) ? $args->before : '';
@ -250,7 +278,7 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
*/
if ('' !== $linkmod_type) {
// Is linkmod, output the required element opener.
$item_output .= self::linkmod_element_open($linkmod_type, $attributes);
$item_output .= $this->linkmod_element_open($linkmod_type, $attributes);
} else {
// With no link mod type set this must be a standard <a> tag.
$item_output .= '<a' . $attributes . '>';
@ -276,15 +304,15 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
* @since WP 4.4.0
*
* @param string $title The menu item's title.
* @param WP_Post $item The current menu item.
* @param stdClass $args An object of wp_nav_menu() arguments.
* @param WP_Nav_Menu_Item $item The current menu item.
* @param WP_Nav_Menu_Args $args An object of wp_nav_menu() arguments.
* @param int $depth Depth of menu item. Used for padding.
*/
$title = apply_filters('nav_menu_item_title', $title, $item, $args, $depth);
// If the .sr-only class was set apply to the nav items text only.
if (in_array('sr-only', $linkmod_classes, true)) {
$title = self::wrap_for_screen_reader($title);
$title = $this->wrap_for_screen_reader($title);
$keys_to_unset = array_keys($linkmod_classes, 'sr-only', true);
foreach ($keys_to_unset as $k) {
unset($linkmod_classes[$k]);
@ -300,7 +328,7 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
*/
if ('' !== $linkmod_type) {
// Is linkmod, output the required closing element.
$item_output .= self::linkmod_element_close($linkmod_type);
$item_output .= $this->linkmod_element_close($linkmod_type);
} else {
// With no link mod type set this must be a standard <a> tag.
$item_output .= '</a>';
@ -310,94 +338,86 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
// END appending the internal item contents to the output.
$output .= apply_filters('walker_nav_menu_start_el', $item_output, $item, $depth, $args);
}
/**
* Traverse elements to create list from elements.
*
* Display one element if the element doesn't have any children otherwise,
* display the element and its children. Will only traverse up to the max
* depth and no ignore elements under that depth. It is possible to set the
* max depth to include all depths, see walk() method.
*
* This method should not be called directly, use the walk() method instead.
*
* @since WP 2.5.0
*
* @see Walker::start_lvl()
*
* @param object $element Data object.
* @param array $children_elements List of elements to continue traversing (passed by reference).
* @param int $max_depth Max depth to traverse.
* @param int $depth Depth of current element.
* @param array $args An array of arguments.
* @param string $output Used to append additional content (passed by reference).
*/
public function display_element($element, &$children_elements, $max_depth, $depth, $args, &$output)
{
if (!$element) {
return;}
$id_field = $this->db_fields['id'];
// Display this element.
if (is_object($args[0])) {
$args[0]->has_children = !empty($children_elements[$element->$id_field]);}
parent::display_element($element, $children_elements, $max_depth, $depth, $args, $output);
}
/**
* Menu Fallback.
* Menu fallback.
*
* If this function is assigned to the wp_nav_menu's fallback_cb variable
* and a menu has not been assigned to the theme location in the WordPress
* menu manager the function with display nothing to a non-logged in user,
* menu manager the function will display nothing to a non-logged in user,
* and will add a link to the WordPress menu manager if logged in as an admin.
*
* @param array $args passed from the wp_nav_menu function.
* @return string|void String when echo is false.
*/
public static function fallback($args)
{
if (current_user_can('edit_theme_options')) {
// Get Arguments.
$container = $args['container'];
$container_id = $args['container_id'];
$container_class = $args['container_class'];
$menu_class = $args['menu_class'];
$menu_id = $args['menu_id'];
if (!current_user_can('edit_theme_options')) {
return;
}
// Initialize var to store fallback html.
$fallback_output = '';
if ($container) {
$fallback_output .= '<' . esc_attr($container);
if ($container_id) {
$fallback_output .= ' id="' . esc_attr($container_id) . '"';
// Menu container opening tag.
$show_container = false;
if ($args['container']) {
/**
* Filters the list of HTML tags that are valid for use as menu containers.
*
* @since WP 3.0.0
*
* @param array $tags The acceptable HTML tags for use as menu containers.
* Default is array containing 'div' and 'nav'.
*/
$allowed_tags = apply_filters('wp_nav_menu_container_allowedtags', array('div', 'nav'));
if (is_string($args['container']) && in_array($args['container'], $allowed_tags, true)) {
$show_container = true;
$class = $args['container_class'] ? ' class="menu-fallback-container ' . esc_attr($args['container_class']) . '"' : ' class="menu-fallback-container"';
$id = $args['container_id'] ? ' id="' . esc_attr($args['container_id']) . '"' : '';
$fallback_output .= '<' . $args['container'] . $id . $class . '>';
}
if ($container_class) {
$fallback_output .= ' class="' . esc_attr($container_class) . '"';
}
$fallback_output .= '>';
}
$fallback_output .= '<ul';
if ($menu_id) {
$fallback_output .= ' id="' . esc_attr($menu_id) . '"';}
if ($menu_class) {
$fallback_output .= ' class="' . esc_attr($menu_class) . '"';}
$fallback_output .= '>';
$fallback_output .= '<li class="nav-item"><a href="' . esc_url(admin_url('nav-menus.php')) . '" class="nav-link">' . esc_attr__('添加导航', 'kratos') . '</a></li>';
$fallback_output .= '</ul>';
if ($container) {
$fallback_output .= '</' . esc_attr($container) . '>';
}
// If $args has 'echo' key and it's true echo, otherwise return.
// The fallback menu.
$class = $args['menu_class'] ? ' class="menu-fallback-menu ' . esc_attr($args['menu_class']) . '"' : ' class="menu-fallback-menu"';
$id = $args['menu_id'] ? ' id="' . esc_attr($args['menu_id']) . '"' : '';
$fallback_output .= '<ul' . $id . $class . '>';
$fallback_output .= '<li class="nav-item"><a href="' . esc_url(admin_url('nav-menus.php')) . '" class="nav-link" title="' . esc_attr__('Add a menu', 'wp-bootstrap-navwalker') . '">' . esc_html__('Add a menu', 'wp-bootstrap-navwalker') . '</a></li>';
$fallback_output .= '</ul>';
// Menu container closing tag.
if ($show_container) {
$fallback_output .= '</' . $args['container'] . '>';
}
// if $args has 'echo' key and it's true echo, otherwise return.
if (array_key_exists('echo', $args) && $args['echo']) {
echo $fallback_output; // WPCS: XSS OK.
// phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
echo $fallback_output;
} else {
return $fallback_output;
}
}
/**
* Filter to ensure the items_Wrap argument contains microdata.
*
* @since 4.2.0
*
* @param array $args The nav instance arguments.
* @return array $args The altered nav instance arguments.
*/
public function add_schema_to_navbar_ul($args)
{
if (isset($args['items_wrap'])) {
$wrap = $args['items_wrap'];
if (strpos($wrap, 'SiteNavigationElement') === false) {
$args['items_wrap'] = preg_replace('/(>).*>?\%3\$s/', ' itemscope itemtype="http://www.schema.org/SiteNavigationElement"$0', $wrap);
}
}
return $args;
}
/**
@ -589,5 +609,26 @@ if (!class_exists('WP_Bootstrap_Navwalker')) {
}
return $output;
}
/**
* Flattens a multidimensional array to a simple array.
*
* @param array $array a multidimensional array.
*
* @return array a simple array
*/
public function flatten($array)
{
$result = array();
foreach ($array as $element) {
if (is_array($element)) {
array_push($result, ...$this->flatten($element));
} else {
$result[] = $element;
}
}
}
return $result;
}
}
endif;