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<?php
namespace Timber;
use Timber\Core;
use Timber\CoreInterface;
use Timber\URLHelper;
class MenuItem extends Core implements CoreInterface {
/**
* @api
* @var array Array of children of a menu item. Empty if there are no child menu items.
*/
public $children = array();
/**
* @api
* @var bool Whether the menu item has a `menu-item-has-children` CSS class.
*/
public $has_child_class = false;
/**
* @api
* @var array Array of class names.
*/
public $classes = array();
public $class = '';
public $level = 0;
public $post_name;
public $url;
public $PostClass = 'Timber\Post';
/**
* Inherited property. Listed here to make it available in the documentation.
*
* @api
* @see _wp_menu_item_classes_by_context()
* @var bool Whether the menu item links to the currently displayed page.
*/
public $current;
/**
* Inherited property. Listed here to make it available in the documentation.
*
* @api
* @see _wp_menu_item_classes_by_context()
* @var bool Whether the menu item refers to the parent item of the currently displayed page.
*/
public $current_item_parent;
/**
* Inherited property. Listed here to make it available in the documentation.
*
* @api
* @see _wp_menu_item_classes_by_context()
* @var bool Whether the menu item refers to an ancestor (including direct parent) of the
* currently displayed page.
*/
public $current_item_ancestor;
/**
* Timber Menu. Previously this was a public property, but converted to a method to avoid
* recursion (see #2071).
*
* @since 1.12.0
* @see \Timber\Menu::menu();
* @var \Timber\Menu The `Timber\Menu` object the menu item is associated with.
*/
protected $menu;
protected $_name;
protected $_menu_item_object_id;
protected $_menu_item_url;
protected $menu_object;
/**
* @internal
* @param array|object $data
* @param \Timber\Menu $menu The `Timber\Menu` object the menu item is associated with.
*/
public function __construct( $data, $menu = null ) {
$this->menu = $menu;
$data = (object) $data;
$this->import($data);
$this->import_classes($data);
if ( isset($this->name) ) {
$this->_name = $this->name;
}
$this->name = $this->name();
$this->add_class('menu-item-'.$this->ID);
$this->menu_object = $data;
}
/**
* Add a CSS class the menu item should have.
*
* @param string $class_name CSS class name to be added.
*/
public function add_class( $class_name ) {
$this->classes[] = $class_name;
$this->class .= ' '.$class_name;
}
/**
* Get the label for the menu item.
*
* @api
* @return string The label for the menu item.
*/
public function name() {
if ( $title = $this->title() ) {
return $title;
}
if ( isset($this->_name) ) {
return $this->_name;
}
return '';
}
/**
* Magic method to get the label for the menu item.
*
* @api
* @example
* ```twig
* <a href="{{ item.link }}">{{ item }}</a>
* ```
* @see \Timber\MenuItem::name()
* @return string The label for the menu item.
*/
public function __toString() {
return $this->name();
}
/**
* Get the slug for the menu item.
*
* @api
* @example
* ```twig
* <ul>
* {% for item in menu.items %}
* <li class="{{ item.slug }}">
* <a href="{{ item.link }}">{{ item.name }}</a>
* </li>
* {% endfor %}
* </ul>
* ```
* @return string The URL-safe slug of the menu item.
*/
public function slug() {
$mo = $this->master_object();
if ( $mo && $mo->post_name ) {
return $mo->post_name;
}
return $this->post_name;
}
/**
* Allows dev to access the "master object" (ex: post or page) the menu item represents
* @api
* @example
* ```twig
* <div>
* {% for item in menu.items %}
* <a href="{{ item.link }}"><img src="{{ item.master_object.thumbnail }}" /></a>
* {% endfor %}
* </div>
* ```
* @return mixed Whatever object (Timber\Post, Timber\Term, etc.) the menu item represents.
*/
public function master_object() {
if ( isset($this->_menu_item_object_id) ) {
return new $this->PostClass($this->_menu_item_object_id);
}
if ( isset($this->menu_object) ) {
return new $this->PostClass($this->menu_object);
}
}
/**
* Get link.
*
* @internal
* @see \Timber\MenuItem::link()
* @deprecated since 1.0
* @codeCoverageIgnore
* @return string An absolute URL, e.g. `http://example.org/my-page`.
*/
public function get_link() {
return $this->link();
}
/**
* Get path.
*
* @internal
* @codeCoverageIgnore
* @see \Timber\MenuItem::path()
* @deprecated since 1.0
* @return string A relative URL, e.g. `/my-page`.
*/
public function get_path() {
return $this->path();
}
/**
* Add a new `Timber\MenuItem` object as a child of this menu item.
*
* @param \Timber\MenuItem $item The menu item to add.
*/
public function add_child( $item ) {
if ( !$this->has_child_class ) {
$this->add_class('menu-item-has-children');
$this->has_child_class = true;
}
$this->children[] = $item;
$item->level = $this->level + 1;
if ( count($this->children) ) {
$this->update_child_levels();
}
}
/**
* @internal
* @return bool|null
*/
public function update_child_levels() {
if ( is_array($this->children) ) {
foreach ( $this->children as $child ) {
$child->level = $this->level + 1;
$child->update_child_levels();
}
return true;
}
}
/**
* Imports the classes to be used in CSS.
*
* @internal
*
* @param array|object $data
*/
public function import_classes( $data ) {
if ( is_array($data) ) {
$data = (object) $data;
}
$this->classes = array_merge($this->classes, $data->classes);
$this->classes = array_unique($this->classes);
$options = new \stdClass();
if ( isset($this->menu()->options) ) {
// The options need to be an object.
$options = (object) $this->menu()->options;
}
/**
* Filters the CSS classes applied to a menu item’s list item.
*
* @param string[] $classes An array of the CSS classes that can be applied to the
* menu item’s `<li>` element.
* @param \Timber\MenuItem $item The current menu item.
* @param \stdClass $args An object of wp_nav_menu() arguments. In Timber, we
* don’t have these arguments because we don’t use a menu
* walker. Instead, you get the options that were used to
* create the `Timber\Menu` object.
* @param int $depth Depth of menu item.
*/
$this->classes = apply_filters(
'nav_menu_css_class',
$this->classes,
$this,
$options,
0
);
$this->class = trim(implode(' ', $this->classes));
}
/**
* Get children of a menu item.
*
* You can also directly access the children through the `$children` property (`item.children`
* in Twig).
*
* @internal
* @example
* ```twig
* {% for child in item.get_children %}
* <li class="nav-drop-item">
* <a href="{{ child.link }}">{{ child.title }}</a>
* </li>
* {% endfor %}
* ```
* @return array|bool Array of children of a menu item. Empty if there are no child menu items.
*/
public function get_children() {
if ( isset($this->children) ) {
return $this->children;
}
return false;
}
/**
* Checks to see if the menu item is an external link.
*
* If your site is `example.org`, then `google.com/whatever` is an external link. This is
* helpful when you want to create rules for the target of a link.
*
* @api
* @example
* ```twig
* <a href="{{ item.link }}" target="{{ item.is_external ? '_blank' : '_self' }}">
* ```
* @return bool Whether the link is external or not.
*/
public function is_external() {
if ( $this->type() != 'custom' ) {
return false;
}
return URLHelper::is_external($this->url);
}
/**
* Get the type of the menu item.
*
* Depending on what is the menu item links to. Can be `post_type` for posts, pages and custom
* posts, `post_type_archive` for post type archive pages, `taxonomy` for terms or `custom` for
* custom links.
*
* @api
* @since 1.0.4
* @return string The type of the menu item.
*/
public function type() {
return $this->_menu_item_type;
}
/**
* Timber Menu.
*
* @api
* @since 1.12.0
* @return \Timber\Menu The `Timber\Menu` object the menu item is associated with.
*/
public function menu() {
return $this->menu;
}
/**
* Get a meta value of the menu item.
*
* Plugins like Advanced Custom Fields allow you to set custom fields for menu items. With this
* method you can retrieve the value of these.
*
* @example
* ```twig
* <a class="icon-{{ item.meta('icon') }}" href="{{ item.link }}">{{ item.title }}</a>
* ```
* @api
* @param string $key The meta key to get the value for.
* @return mixed Whatever value is stored in the database.
*/
public function meta( $key ) {
if ( is_object($this->menu_object) && method_exists($this->menu_object, 'meta') ) {
return $this->menu_object->meta($key);
}
if ( isset($this->$key) ) {
return $this->$key;
}
}
/* Aliases */
/**
* Get the child menu items of a `Timber\MenuItem`.
*
* @api
* @example
* ```twig
* {% for child in item.children %}
* <li class="nav-drop-item">
* <a href="{{ child.link }}">{{ child.title }}</a>
* </li>
* {% endfor %}
* ```
* @return array|bool Array of children of a menu item. Empty if there are no child menu items.
*/
public function children() {
return $this->get_children();
}
/**
* Check if a link is external.
*
* This is helpful when creating rules for the target of a link.
*
* @internal
* @see \Timber\MenuItem::is_external()
* @return bool Whether the link is external or not.
*/
public function external() {
return $this->is_external();
}
/**
* Get the full link to a menu item.
*
* @api
* @example
* ```twig
* {% for item in menu.items %}
* <li><a href="{{ item.link }}">{{ item.title }}</a></li>
* {% endfor %}
* ```
* @return string A full URL, like `http://mysite.com/thing/`.
*/
public function link() {
if ( !isset($this->url) || !$this->url ) {
if ( isset($this->_menu_item_type) && $this->_menu_item_type == 'custom' ) {
$this->url = $this->_menu_item_url;
} else if ( isset($this->menu_object) && method_exists($this->menu_object, 'get_link') ) {
$this->url = $this->menu_object->link();
}
}
return $this->url;
}
/**
* Get the link the menu item points at.
*
* @internal
* @deprecated since 0.21.7 Use link method instead.
* @see \Timber\MenuItem::link()
* @codeCoverageIgnore
* @return string A full URL, like `http://mysite.com/thing/`.
*/
public function permalink() {
Helper::warn('{{ item.permalink }} is deprecated, use {{ item.link }} instead');
return $this->link();
}
/**
* Get the relative path of the menu item’s link.
*
* @api
* @example
* ```twig
* {% for item in menu.items %}
* <li><a href="{{ item.path }}">{{ item.title }}</a></li>
* {% endfor %}
* ```
* @return string The path of a URL, like `/foo`.
*/
public function path() {
return URLHelper::get_rel_url($this->link());
}
/**
* Get the public label for the menu item.
*
* @api
* @example
* ```twig
* {% for item in menu.items %}
* <li><a href="{{ item.link }}">{{ item.title }}</a></li>
* {% endfor %}
* ```
* @return string The public label, like "Foo".
*/
public function title() {
if ( isset($this->__title) ) {
return $this->__title;
}
}
/**
* Get the featured image of the post associated with the menu item.
*
* @api
* @deprecated since 1.5.2 to be removed in v2.0
* @example
* ```twig
* {% for item in menu.items %}
* <li><a href="{{ item.link }}"><img src="{{ item.thumbnail }}"/></a></li>
* {% endfor %}
* ```
* @return \Timber\Image|null The featured image object.
*/
public function thumbnail() {
$mo = $this->master_object();
if ( $mo && method_exists($mo, 'thumbnail') ) {
return $mo->thumbnail();
}
}
}