WordPress/wp-includes/class-wp-admin-bar.php

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<?php
/**
* Toolbar API: WP_Admin_Bar class
*
* @package WordPress
* @subpackage Toolbar
* @since 3.1.0
*/
/**
* Core class used to implement the Toolbar API.
*
* @since 3.1.0
*/
Code Modernization: Add `AllowDynamicProperties` attribute to all (parent) classes. Dynamic (non-explicitly declared) properties are deprecated as of PHP 8.2 and are expected to become a fatal error in PHP 9.0. There are a number of ways to mitigate this: * If it is an accidental typo for a declared property: fix the typo. * For known properties: declare them on the class. * For unknown properties: add the magic `__get()`, `__set()`, et al. methods to the class or let the class extend `stdClass` which has highly optimized versions of these magic methods built in. * For unknown ''use'' of dynamic properties, the `#[AllowDynamicProperties]` attribute can be added to the class. The attribute will automatically be inherited by child classes. Trac ticket #56034 is open to investigate and handle the third and fourth type of situations, however it has become clear this will need more time and will not be ready in time for WP 6.1. To reduce “noise” in the meantime, both in the error logs of WP users moving onto PHP 8.2, in the test run logs of WP itself, in test runs of plugins and themes, as well as to prevent duplicate tickets from being opened for the same issue, this commit adds the `#[AllowDynamicProperties]` attribute to all “parent” classes in WP. The logic used for this commit is as follows: * If a class already has the attribute: no action needed. * If a class does not `extend`: add the attribute. * If a class does `extend`: - If it extends `stdClass`: no action needed (as `stdClass` supports dynamic properties). - If it extends a PHP native class: add the attribute. - If it extends a class from one of WP's external dependencies: add the attribute. * In all other cases: no action — the attribute should not be needed as child classes inherit from the parent. Whether or not a class contains magic methods has not been taken into account, as a review of the currently existing magic methods has shown that those are generally not sturdy enough and often even set dynamic properties (which they should not). See the [https://www.youtube.com/watch?v=vDZWepDQQVE live stream from August 16, 2022] for more details. This commit only affects classes in the `src` directory of WordPress core. * Tests should not get this attribute, but should be fixed to not use dynamic properties instead. Patches for this are already being committed under ticket #56033. * While a number bundled themes (2014, 2019, 2020, 2021) contain classes, they are not a part of this commit and may be updated separately. Reference: [https://wiki.php.net/rfc/deprecate_dynamic_properties PHP RFC: Deprecate dynamic properties]. Follow-up to [53922]. Props jrf, hellofromTonya, markjaquith, peterwilsoncc, costdev, knutsp, aristath. See #56513, #56034. Built from https://develop.svn.wordpress.org/trunk@54133 git-svn-id: http://core.svn.wordpress.org/trunk@53692 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2022-09-12 11:47:14 -04:00
#[AllowDynamicProperties]
class WP_Admin_Bar {
private $nodes = array();
private $bound = false;
public $user;
/**
* @since 3.3.0
*
* @param string $name
* @return string|array|void
*/
public function __get( $name ) {
switch ( $name ) {
case 'proto':
return is_ssl() ? 'https://' : 'http://';
case 'menu':
_deprecated_argument( 'WP_Admin_Bar', '3.3.0', 'Modify admin bar nodes with WP_Admin_Bar::get_node(), WP_Admin_Bar::add_node(), and WP_Admin_Bar::remove_node(), not the <code>menu</code> property.' );
return array(); // Sorry, folks.
}
}
/**
* Initializes the admin bar.
*
* @since 3.1.0
*/
public function initialize() {
$this->user = new stdClass;
if ( is_user_logged_in() ) {
/* Populate settings we need for the menu based on the current user. */
$this->user->blogs = get_blogs_of_user( get_current_user_id() );
if ( is_multisite() ) {
$this->user->active_blog = get_active_blog_for_user( get_current_user_id() );
$this->user->domain = empty( $this->user->active_blog ) ? user_admin_url() : trailingslashit( get_home_url( $this->user->active_blog->blog_id ) );
$this->user->account_domain = $this->user->domain;
} else {
$this->user->active_blog = $this->user->blogs[ get_current_blog_id() ];
$this->user->domain = trailingslashit( home_url() );
$this->user->account_domain = $this->user->domain;
}
}
add_action( 'wp_head', 'wp_admin_bar_header' );
add_action( 'admin_head', 'wp_admin_bar_header' );
if ( current_theme_supports( 'admin-bar' ) ) {
/**
* To remove the default padding styles from WordPress for the Toolbar, use the following code:
* add_theme_support( 'admin-bar', array( 'callback' => '__return_false' ) );
*/
$admin_bar_args = get_theme_support( 'admin-bar' );
$header_callback = $admin_bar_args[0]['callback'];
}
if ( empty( $header_callback ) ) {
$header_callback = '_admin_bar_bump_cb';
}
add_action( 'wp_head', $header_callback );
wp_enqueue_script( 'admin-bar' );
wp_enqueue_style( 'admin-bar' );
/**
* Fires after WP_Admin_Bar is initialized.
*
* @since 3.1.0
*/
do_action( 'admin_bar_init' );
}
/**
* Adds a node (menu item) to the admin bar menu.
*
* @since 3.3.0
*
* @param array $node The attributes that define the node.
*/
public function add_menu( $node ) {
$this->add_node( $node );
}
/**
* Removes a node from the admin bar.
*
* @since 3.1.0
*
* @param string $id The menu slug to remove.
*/
public function remove_menu( $id ) {
$this->remove_node( $id );
}
/**
* Adds a node to the menu.
*
* @since 3.1.0
* @since 4.5.0 Added the ability to pass 'lang' and 'dir' meta data.
*
* @param array $args {
* Arguments for adding a node.
*
* @type string $id ID of the item.
* @type string $title Title of the node.
* @type string $parent Optional. ID of the parent node.
* @type string $href Optional. Link for the item.
* @type bool $group Optional. Whether or not the node is a group. Default false.
* @type array $meta Meta data including the following keys: 'html', 'class', 'rel', 'lang', 'dir',
* 'onclick', 'target', 'title', 'tabindex'. Default empty.
* }
*/
public function add_node( $args ) {
// Shim for old method signature: add_node( $parent_id, $menu_obj, $args ).
if ( func_num_args() >= 3 && is_string( $args ) ) {
$args = array_merge( array( 'parent' => $args ), func_get_arg( 2 ) );
}
if ( is_object( $args ) ) {
$args = get_object_vars( $args );
}
// Ensure we have a valid title.
if ( empty( $args['id'] ) ) {
if ( empty( $args['title'] ) ) {
return;
}
_doing_it_wrong( __METHOD__, __( 'The menu ID should not be empty.' ), '3.3.0' );
// Deprecated: Generate an ID from the title.
$args['id'] = esc_attr( sanitize_title( trim( $args['title'] ) ) );
}
$defaults = array(
'id' => false,
'title' => false,
'parent' => false,
'href' => false,
'group' => false,
'meta' => array(),
);
// If the node already exists, keep any data that isn't provided.
$maybe_defaults = $this->get_node( $args['id'] );
if ( $maybe_defaults ) {
$defaults = get_object_vars( $maybe_defaults );
}
// Do the same for 'meta' items.
if ( ! empty( $defaults['meta'] ) && ! empty( $args['meta'] ) ) {
$args['meta'] = wp_parse_args( $args['meta'], $defaults['meta'] );
}
$args = wp_parse_args( $args, $defaults );
$back_compat_parents = array(
'my-account-with-avatar' => array( 'my-account', '3.3' ),
'my-blogs' => array( 'my-sites', '3.3' ),
);
if ( isset( $back_compat_parents[ $args['parent'] ] ) ) {
list( $new_parent, $version ) = $back_compat_parents[ $args['parent'] ];
_deprecated_argument( __METHOD__, $version, sprintf( 'Use <code>%s</code> as the parent for the <code>%s</code> admin bar node instead of <code>%s</code>.', $new_parent, $args['id'], $args['parent'] ) );
$args['parent'] = $new_parent;
}
$this->_set_node( $args );
}
/**
* @since 3.3.0
*
* @param array $args
*/
final protected function _set_node( $args ) {
$this->nodes[ $args['id'] ] = (object) $args;
}
/**
* Gets a node.
*
* @since 3.3.0
*
* @param string $id
* @return object|void Node.
*/
final public function get_node( $id ) {
$node = $this->_get_node( $id );
if ( $node ) {
return clone $node;
}
}
/**
* @since 3.3.0
*
* @param string $id
* @return object|void
*/
final protected function _get_node( $id ) {
if ( $this->bound ) {
return;
}
if ( empty( $id ) ) {
$id = 'root';
}
if ( isset( $this->nodes[ $id ] ) ) {
return $this->nodes[ $id ];
}
}
/**
* @since 3.3.0
*
* @return array|void
*/
final public function get_nodes() {
$nodes = $this->_get_nodes();
if ( ! $nodes ) {
return;
}
foreach ( $nodes as &$node ) {
$node = clone $node;
}
return $nodes;
}
/**
* @since 3.3.0
*
* @return array|void
*/
final protected function _get_nodes() {
if ( $this->bound ) {
return;
}
return $this->nodes;
}
/**
* Adds a group to a toolbar menu node.
*
* Groups can be used to organize toolbar items into distinct sections of a toolbar menu.
*
* @since 3.3.0
*
* @param array $args {
* Array of arguments for adding a group.
*
* @type string $id ID of the item.
* @type string $parent Optional. ID of the parent node. Default 'root'.
* @type array $meta Meta data for the group including the following keys:
* 'class', 'onclick', 'target', and 'title'.
* }
*/
final public function add_group( $args ) {
$args['group'] = true;
$this->add_node( $args );
}
/**
* Remove a node.
*
* @since 3.1.0
*
* @param string $id The ID of the item.
*/
public function remove_node( $id ) {
$this->_unset_node( $id );
}
/**
* @since 3.3.0
*
* @param string $id
*/
final protected function _unset_node( $id ) {
unset( $this->nodes[ $id ] );
}
/**
* @since 3.1.0
*/
public function render() {
$root = $this->_bind();
if ( $root ) {
$this->_render( $root );
}
}
/**
* @since 3.3.0
*
* @return object|void
*/
final protected function _bind() {
if ( $this->bound ) {
return;
}
// Add the root node.
// Clear it first, just in case. Don't mess with The Root.
$this->remove_node( 'root' );
$this->add_node(
array(
'id' => 'root',
'group' => false,
)
);
// Normalize nodes: define internal 'children' and 'type' properties.
foreach ( $this->_get_nodes() as $node ) {
$node->children = array();
$node->type = ( $node->group ) ? 'group' : 'item';
unset( $node->group );
// The Root wants your orphans. No lonely items allowed.
if ( ! $node->parent ) {
$node->parent = 'root';
}
}
foreach ( $this->_get_nodes() as $node ) {
if ( 'root' === $node->id ) {
continue;
}
// Fetch the parent node. If it isn't registered, ignore the node.
$parent = $this->_get_node( $node->parent );
if ( ! $parent ) {
continue;
}
// Generate the group class (we distinguish between top level and other level groups).
$group_class = ( 'root' === $node->parent ) ? 'ab-top-menu' : 'ab-submenu';
if ( 'group' === $node->type ) {
if ( empty( $node->meta['class'] ) ) {
$node->meta['class'] = $group_class;
} else {
$node->meta['class'] .= ' ' . $group_class;
}
}
// Items in items aren't allowed. Wrap nested items in 'default' groups.
if ( 'item' === $parent->type && 'item' === $node->type ) {
$default_id = $parent->id . '-default';
$default = $this->_get_node( $default_id );
// The default group is added here to allow groups that are
// added before standard menu items to render first.
if ( ! $default ) {
// Use _set_node because add_node can be overloaded.
// Make sure to specify default settings for all properties.
$this->_set_node(
array(
'id' => $default_id,
'parent' => $parent->id,
'type' => 'group',
'children' => array(),
'meta' => array(
'class' => $group_class,
),
'title' => false,
'href' => false,
)
);
$default = $this->_get_node( $default_id );
$parent->children[] = $default;
}
$parent = $default;
// Groups in groups aren't allowed. Add a special 'container' node.
// The container will invisibly wrap both groups.
} elseif ( 'group' === $parent->type && 'group' === $node->type ) {
$container_id = $parent->id . '-container';
$container = $this->_get_node( $container_id );
// We need to create a container for this group, life is sad.
if ( ! $container ) {
// Use _set_node because add_node can be overloaded.
// Make sure to specify default settings for all properties.
$this->_set_node(
array(
'id' => $container_id,
'type' => 'container',
'children' => array( $parent ),
'parent' => false,
'title' => false,
'href' => false,
'meta' => array(),
)
);
$container = $this->_get_node( $container_id );
// Link the container node if a grandparent node exists.
$grandparent = $this->_get_node( $parent->parent );
if ( $grandparent ) {
$container->parent = $grandparent->id;
$index = array_search( $parent, $grandparent->children, true );
if ( false === $index ) {
$grandparent->children[] = $container;
} else {
array_splice( $grandparent->children, $index, 1, array( $container ) );
}
}
$parent->parent = $container->id;
}
$parent = $container;
}
// Update the parent ID (it might have changed).
$node->parent = $parent->id;
// Add the node to the tree.
$parent->children[] = $node;
}
$root = $this->_get_node( 'root' );
$this->bound = true;
return $root;
}
/**
* @since 3.3.0
*
* @param object $root
*/
final protected function _render( $root ) {
// Add browser classes.
// We have to do this here since admin bar shows on the front end.
$class = 'nojq nojs';
if ( wp_is_mobile() ) {
$class .= ' mobile';
}
?>
<div id="wpadminbar" class="<?php echo $class; ?>">
<?php if ( ! is_admin() && ! did_action( 'wp_body_open' ) ) { ?>
<a class="screen-reader-shortcut" href="#wp-toolbar" tabindex="1"><?php _e( 'Skip to toolbar' ); ?></a>
<?php } ?>
<div class="quicklinks" id="wp-toolbar" role="navigation" aria-label="<?php esc_attr_e( 'Toolbar' ); ?>">
<?php
foreach ( $root->children as $group ) {
$this->_render_group( $group );
}
?>
</div>
<?php if ( is_user_logged_in() ) : ?>
<a class="screen-reader-shortcut" href="<?php echo esc_url( wp_logout_url() ); ?>"><?php _e( 'Log Out' ); ?></a>
<?php endif; ?>
</div>
<?php
}
/**
* @since 3.3.0
*
* @param object $node
*/
final protected function _render_container( $node ) {
if ( 'container' !== $node->type || empty( $node->children ) ) {
return;
}
echo '<div id="' . esc_attr( 'wp-admin-bar-' . $node->id ) . '" class="ab-group-container">';
foreach ( $node->children as $group ) {
$this->_render_group( $group );
}
echo '</div>';
}
/**
* @since 3.3.0
*
* @param object $node
*/
final protected function _render_group( $node ) {
if ( 'container' === $node->type ) {
$this->_render_container( $node );
return;
}
if ( 'group' !== $node->type || empty( $node->children ) ) {
return;
}
if ( ! empty( $node->meta['class'] ) ) {
$class = ' class="' . esc_attr( trim( $node->meta['class'] ) ) . '"';
} else {
$class = '';
}
echo "<ul id='" . esc_attr( 'wp-admin-bar-' . $node->id ) . "'$class>";
foreach ( $node->children as $item ) {
$this->_render_item( $item );
}
echo '</ul>';
}
/**
* @since 3.3.0
*
* @param object $node
*/
final protected function _render_item( $node ) {
if ( 'item' !== $node->type ) {
return;
}
$is_parent = ! empty( $node->children );
$has_link = ! empty( $node->href );
$is_root_top_item = 'root-default' === $node->parent;
$is_top_secondary_item = 'top-secondary' === $node->parent;
// Allow only numeric values, then casted to integers, and allow a tabindex value of `0` for a11y.
$tabindex = ( isset( $node->meta['tabindex'] ) && is_numeric( $node->meta['tabindex'] ) ) ? (int) $node->meta['tabindex'] : '';
$aria_attributes = ( '' !== $tabindex ) ? ' tabindex="' . $tabindex . '"' : '';
$menuclass = '';
$arrow = '';
if ( $is_parent ) {
$menuclass = 'menupop ';
$aria_attributes .= ' aria-haspopup="true"';
}
if ( ! empty( $node->meta['class'] ) ) {
$menuclass .= $node->meta['class'];
}
// Print the arrow icon for the menu children with children.
if ( ! $is_root_top_item && ! $is_top_secondary_item && $is_parent ) {
$arrow = '<span class="wp-admin-bar-arrow" aria-hidden="true"></span>';
}
if ( $menuclass ) {
$menuclass = ' class="' . esc_attr( trim( $menuclass ) ) . '"';
}
echo "<li id='" . esc_attr( 'wp-admin-bar-' . $node->id ) . "'$menuclass>";
if ( $has_link ) {
$attributes = array( 'onclick', 'target', 'title', 'rel', 'lang', 'dir' );
echo "<a class='ab-item'$aria_attributes href='" . esc_url( $node->href ) . "'";
} else {
$attributes = array( 'onclick', 'target', 'title', 'rel', 'lang', 'dir' );
echo '<div class="ab-item ab-empty-item"' . $aria_attributes;
}
foreach ( $attributes as $attribute ) {
if ( empty( $node->meta[ $attribute ] ) ) {
continue;
}
if ( 'onclick' === $attribute ) {
echo " $attribute='" . esc_js( $node->meta[ $attribute ] ) . "'";
} else {
echo " $attribute='" . esc_attr( $node->meta[ $attribute ] ) . "'";
}
}
echo ">{$arrow}{$node->title}";
if ( $has_link ) {
echo '</a>';
} else {
echo '</div>';
}
if ( $is_parent ) {
echo '<div class="ab-sub-wrapper">';
foreach ( $node->children as $group ) {
$this->_render_group( $group );
}
echo '</div>';
}
if ( ! empty( $node->meta['html'] ) ) {
echo $node->meta['html'];
}
echo '</li>';
}
/**
* Renders toolbar items recursively.
*
* @since 3.1.0
* @deprecated 3.3.0 Use WP_Admin_Bar::_render_item() or WP_Admin_bar::render() instead.
* @see WP_Admin_Bar::_render_item()
* @see WP_Admin_Bar::render()
*
* @param string $id Unused.
* @param object $node
*/
public function recursive_render( $id, $node ) {
_deprecated_function( __METHOD__, '3.3.0', 'WP_Admin_bar::render(), WP_Admin_Bar::_render_item()' );
$this->_render_item( $node );
}
/**
* Adds menus to the admin bar.
*
* @since 3.1.0
*/
public function add_menus() {
// User-related, aligned right.
add_action( 'admin_bar_menu', 'wp_admin_bar_my_account_menu', 0 );
add_action( 'admin_bar_menu', 'wp_admin_bar_search_menu', 4 );
add_action( 'admin_bar_menu', 'wp_admin_bar_my_account_item', 7 );
add_action( 'admin_bar_menu', 'wp_admin_bar_recovery_mode_menu', 8 );
// Site-related.
add_action( 'admin_bar_menu', 'wp_admin_bar_sidebar_toggle', 0 );
add_action( 'admin_bar_menu', 'wp_admin_bar_wp_menu', 10 );
add_action( 'admin_bar_menu', 'wp_admin_bar_my_sites_menu', 20 );
add_action( 'admin_bar_menu', 'wp_admin_bar_site_menu', 30 );
add_action( 'admin_bar_menu', 'wp_admin_bar_edit_site_menu', 40 );
add_action( 'admin_bar_menu', 'wp_admin_bar_customize_menu', 40 );
add_action( 'admin_bar_menu', 'wp_admin_bar_updates_menu', 50 );
// Content-related.
if ( ! is_network_admin() && ! is_user_admin() ) {
add_action( 'admin_bar_menu', 'wp_admin_bar_comments_menu', 60 );
add_action( 'admin_bar_menu', 'wp_admin_bar_new_content_menu', 70 );
}
add_action( 'admin_bar_menu', 'wp_admin_bar_edit_menu', 80 );
add_action( 'admin_bar_menu', 'wp_admin_bar_add_secondary_groups', 200 );
/**
* Fires after menus are added to the menu bar.
*
* @since 3.1.0
*/
do_action( 'add_admin_bar_menus' );
}
}