1091 lines
39 KiB
PHP
1091 lines
39 KiB
PHP
<?php
|
|
|
|
/**
|
|
* @file
|
|
* API for the Drupal menu system.
|
|
*/
|
|
|
|
use Drupal\Component\Utility\String;
|
|
use Drupal\Core\Render\Element;
|
|
use Drupal\Core\Template\Attribute;
|
|
|
|
/**
|
|
* @defgroup menu Menu and routing system
|
|
* @{
|
|
* Define the navigation menus, and route page requests to code based on URLs.
|
|
*
|
|
* @section sec_overview Overview and terminology
|
|
* The Drupal routing system defines how Drupal responds to URL requests that
|
|
* the web server passes on to Drupal. The routing system is based on the
|
|
* @link http://symfony.com Symfony framework. @endlink The central idea is
|
|
* that Drupal subsystems and modules can register routes (basically, URL
|
|
* paths and context); they can also register to respond dynamically to
|
|
* routes, for more flexibility. When Drupal receives a URL request, it will
|
|
* attempt to match the request to a registered route, and query dynamic
|
|
* responders. If a match is made, Drupal will then instantiate the required
|
|
* classes, gather the data, format it, and send it back to the web browser.
|
|
* Otherwise, Drupal will return a 404 or 403 response.
|
|
*
|
|
* The menu system uses routes; it is used for navigation menus, local tasks,
|
|
* local actions, and contextual links:
|
|
* - Navigation menus are hierarchies of menu links; links point to routes or
|
|
* URLs.
|
|
* - Menu links and their hierarchies can be defined by Drupal subsystems
|
|
* and modules, or created in the user interface using the Menu UI module.
|
|
* - Local tasks are groups of related routes. Local tasks are usually rendered
|
|
* as a group of tabs.
|
|
* - Local actions are used for operations such as adding a new item on a page
|
|
* that lists items of some type. Local actions are usually rendered as
|
|
* buttons.
|
|
* - Contextual links are actions that are related to sections of rendered
|
|
* output, and are usually rendered as a pop-up list of links. The
|
|
* Contextual Links module handles the gathering and rendering of contextual
|
|
* links.
|
|
*
|
|
* The following sections of this topic provide an overview of the routing and
|
|
* menu APIs. For more detailed information, see
|
|
* https://www.drupal.org/developing/api/8/routing and
|
|
* https://www.drupal.org/developing/api/8/menu
|
|
*
|
|
* @section sec_register Registering simple routes
|
|
* To register a route, add lines similar to this to a module_name.routing.yml
|
|
* file in your top-level module directory:
|
|
* @code
|
|
* dblog.overview:
|
|
* path: '/admin/reports/dblog'
|
|
* defaults:
|
|
* _content: '\Drupal\dblog\Controller\DbLogController::overview'
|
|
* _title: 'Recent log messages'
|
|
* requirements:
|
|
* _permission: 'access site reports'
|
|
* @endcode
|
|
* Some notes:
|
|
* - The first line is the machine name of the route. Typically, it is prefixed
|
|
* by the machine name of the module that defines the route, or the name of
|
|
* a subsystem.
|
|
* - The 'path' line gives the URL path of the route (relative to the site's
|
|
* base URL).
|
|
* - The 'defaults' section tells how to build the main content of the route,
|
|
* and can also give other information, such as the page title and additional
|
|
* arguments for the route controller method. There are several possibilities
|
|
* for how to build the main content, including:
|
|
* - _content: A callable, usually a method on a page controller class
|
|
* (see @ref sec_controller below for details).
|
|
* - _controller: A callable, usually a method on a page controller class
|
|
* (see @ref sec_controller below for details).
|
|
* - _form: A form controller class. See the
|
|
* @link form_api Form API topic @endlink for more information about
|
|
* form controllers.
|
|
* - _entity_form: A form for editing an entity. See the
|
|
* @link entity_api Entity API topic @endlink for more information.
|
|
* - The 'requirements' section is used in Drupal to give access permission
|
|
* instructions (it has other uses in the Symfony framework). Most
|
|
* routes have a simple permission-based access scheme, as shown in this
|
|
* example. See the @link user_api Permission system topic @endlink for
|
|
* more information about permissions.
|
|
*
|
|
* See https://www.drupal.org/node/2092643 for more details about *.routing.yml
|
|
* files, and https://www.drupal.org/node/2122201 for information on how to
|
|
* set up dynamic routes.
|
|
*
|
|
* @section sec_placeholders Defining routes with placeholders
|
|
* Some routes have placeholders in them, and these can also be defined in a
|
|
* module_name.routing.yml file, as in this example from the Block module:
|
|
* @code
|
|
* block.admin_edit:
|
|
* path: '/admin/structure/block/manage/{block}'
|
|
* defaults:
|
|
* _entity_form: 'block.default'
|
|
* _title: 'Configure block'
|
|
* requirements:
|
|
* _entity_access: 'block.update'
|
|
* @endcode
|
|
* In the path, '{block}' is a placeholder - it will be replaced by the
|
|
* ID of the block that is being configured by the entity system. See the
|
|
* @link entity_api Entity API topic @endlink for more information.
|
|
*
|
|
* @section sec_controller Route controllers for simple routes
|
|
* For simple routes, after you have defined the route in a *.routing.yml file
|
|
* (see @ref sec_register above), the next step is to define a page controller
|
|
* class and method. Page controller classes do not necessarily need to
|
|
* implement any particular interface or extend any particular base class. The
|
|
* only requirement is that the method specified in your *.routing.yml file
|
|
* return one of the following, depending on whether you specified _content or
|
|
* _controller in the routing file defaults section:
|
|
* - A render array (see the
|
|
* @link theme_render Theme and render topic @endlink for more information),
|
|
* if _content is used in the routing file.
|
|
* - A \Drupal\Core\Page\HtmlFragmentInterface object (fragment or page), if
|
|
* _content is used in the routing file.
|
|
* - A \Symfony\Component\HttpFoundation\Response object, if _controller is
|
|
* used in the routing file.
|
|
* As a note, if your module registers multiple simple routes, it is usual
|
|
* (and usually easiest) to put all of their methods on one controller class.
|
|
*
|
|
* Most controllers will need to display some information stored in the Drupal
|
|
* database, which will involve using one or more Drupal services (see the
|
|
* @link container Services and container topic @endlink). In order to properly
|
|
* inject services, a controller should implement
|
|
* \Drupal\Core\DependencyInjection\ContainerInjectionInterface; simple
|
|
* controllers can do this by extending the
|
|
* \Drupal\Core\Controller\ControllerBase class. See
|
|
* \Drupal\dblog\Controller\DbLogController for a straightforward example of
|
|
* a controller class.
|
|
*
|
|
* @section sec_links Defining menu links for the administrative menu
|
|
* Routes for administrative tasks can be added to the main Drupal
|
|
* administrative menu hierarchy. To do this, add lines like the following to a
|
|
* module_name.menu_links.yml file (in the top-level directory for your module):
|
|
* @code
|
|
* dblog.overview:
|
|
* title: 'Recent log messages'
|
|
* parent: system.admin_reports
|
|
* description: 'View events that have recently been logged.'
|
|
* route_name: dblog.overview
|
|
* weight: -1
|
|
* @endcode
|
|
* Some notes:
|
|
* - The first line is the machine name for your menu link, which usually
|
|
* matches the machine name of the route (given in the 'route_name' line).
|
|
* - parent: The machine name of the menu link that is the parent in the
|
|
* administrative hierarchy. See system.menu_links.yml to find the main
|
|
* skeleton of the hierarchy.
|
|
* - weight: Lower (negative) numbers come before higher (positive) numbers,
|
|
* for menu items with the same parent.
|
|
*
|
|
* Menu items from other modules can be altered using
|
|
* hook_menu_link_defaults_alter().
|
|
*
|
|
* @todo Derivatives will probably be defined for these; when they are, add
|
|
* documentation here.
|
|
*
|
|
* @section sec_tasks Defining groups of local tasks (tabs)
|
|
* Local tasks appear as tabs on a page when there are at least two defined for
|
|
* a route, including the base route as the main tab, and additional routes as
|
|
* other tabs. Static local tasks can be defined by adding lines like the
|
|
* following to a module_name.local_tasks.yml file (in the top-level directory
|
|
* for your module):
|
|
* @code
|
|
* book.admin:
|
|
* route_name: book.admin
|
|
* title: 'List'
|
|
* base_route: book.admin
|
|
* book.settings:
|
|
* route_name: book.settings
|
|
* title: 'Settings'
|
|
* base_route: book.admin
|
|
* weight: 100
|
|
* @endcode
|
|
* Some notes:
|
|
* - The first line is the machine name for your local task, which usually
|
|
* matches the machine name of the route (given in the 'route_name' line).
|
|
* - base_route: The machine name of the main task (tab) for the set of local
|
|
* tasks.
|
|
* - weight: Lower (negative) numbers come before higher (positive) numbers,
|
|
* for tasks on the same base route. If there is a tab whose route
|
|
* matches the base route, that will be the default/first tab shown.
|
|
*
|
|
* Local tasks from other modules can be altered using
|
|
* hook_menu_local_tasks_alter().
|
|
*
|
|
* @todo Derivatives are in flux for these; when they are more stable, add
|
|
* documentation here.
|
|
*
|
|
* @section sec_actions Defining local actions for routes
|
|
* Local actions can be defined for operations related to a given route. For
|
|
* instance, adding content is a common operation for the content management
|
|
* page, so it should be a local action. Static local actions can be
|
|
* defined by adding lines like the following to a
|
|
* module_name.local_actions.yml file (in the top-level directory for your
|
|
* module):
|
|
* @code
|
|
* node.add_page:
|
|
* route_name: node.add_page
|
|
* title: 'Add content'
|
|
* appears_on:
|
|
* - system.admin_content
|
|
* @endcode
|
|
* Some notes:
|
|
* - The first line is the machine name for your local action, which usually
|
|
* matches the machine name of the route (given in the 'route_name' line).
|
|
* - appears_on: Machine names of one or more routes that this local task
|
|
* should appear on.
|
|
*
|
|
* Local actions from other modules can be altered using
|
|
* hook_menu_local_actions_alter().
|
|
*
|
|
* @todo Derivatives are in flux for these; when they are more stable, add
|
|
* documentation here.
|
|
*
|
|
* @section sec_contextual Defining contextual links
|
|
* Contextual links are displayed by the Contextual Links module for user
|
|
* interface elements whose render arrays have a '#contextual_links' element
|
|
* defined. For example, a block render array might look like this, in part:
|
|
* @code
|
|
* array(
|
|
* '#contextual_links' => array(
|
|
* 'block' => array(
|
|
* 'route_parameters' => array('block' => $entity->id()),
|
|
* ),
|
|
* ),
|
|
* @endcode
|
|
* In this array, the outer key 'block' defines a "group" for contextual
|
|
* links, and the inner array provides values for the route's placeholder
|
|
* parameters (see @ref sec_placeholders above).
|
|
*
|
|
* To declare that a defined route should be a contextual link for a
|
|
* contextual links group, put lines like the following in a
|
|
* module_name.contextual_links.yml file (in the top-level directory for your
|
|
* module):
|
|
* @code
|
|
* block_configure:
|
|
* title: 'Configure block'
|
|
* route_name: 'block.admin_edit'
|
|
* group: 'block'
|
|
* @endcode
|
|
* Some notes:
|
|
* - The first line is the machine name for your contextual link, which usually
|
|
* matches the machine name of the route (given in the 'route_name' line).
|
|
* - group: This needs to match the link group defined in the render array.
|
|
*
|
|
* Contextual links from other modules can be altered using
|
|
* hook_contextual_links_alter().
|
|
*
|
|
* @todo Derivatives are in flux for these; when they are more stable, add
|
|
* documentation here.
|
|
*/
|
|
|
|
/**
|
|
* The maximum depth of a menu links tree - matches the number of p columns.
|
|
*
|
|
* @todo Move this constant to MenuLinkStorage along with all the tree
|
|
* functionality.
|
|
*/
|
|
const MENU_MAX_DEPTH = 9;
|
|
|
|
/**
|
|
* Reserved key to identify the most specific menu link for a given path.
|
|
*
|
|
* The value of this constant is a hash of the constant name. We use the hash
|
|
* so that the reserved key is over 32 characters in length and will not
|
|
* collide with allowed menu names:
|
|
* @code
|
|
* sha1('MENU_PREFERRED_LINK') = 1cf698d64d1aa4b83907cf6ed55db3a7f8e92c91
|
|
* @endcode
|
|
*
|
|
* @see menu_link_get_preferred()
|
|
*/
|
|
const MENU_PREFERRED_LINK = '1cf698d64d1aa4b83907cf6ed55db3a7f8e92c91';
|
|
|
|
/**
|
|
* Localizes a menu link title using t() if possible.
|
|
*
|
|
* Translate the title and description to allow storage of English title
|
|
* strings in the database, yet display of them in the language required
|
|
* by the current user.
|
|
*
|
|
* @param $item
|
|
* A menu link entity.
|
|
*/
|
|
function _menu_item_localize(&$item) {
|
|
// Allow default menu links to be translated.
|
|
$item['localized_options'] = $item['options'];
|
|
// All 'class' attributes are assumed to be an array during rendering, but
|
|
// links stored in the database may use an old string value.
|
|
// @todo In order to remove this code we need to implement a database update
|
|
// including unserializing all existing link options and running this code
|
|
// on them, as well as adding validation to menu_link_save().
|
|
if (isset($item['options']['attributes']['class']) && is_string($item['options']['attributes']['class'])) {
|
|
$item['localized_options']['attributes']['class'] = explode(' ', $item['options']['attributes']['class']);
|
|
}
|
|
// If the menu link is defined in code and not customized, we can use t().
|
|
if (!empty($item['machine_name']) && !$item['customized']) {
|
|
// @todo Figure out a proper way to support translations of menu links, see
|
|
// https://drupal.org/node/2193777.
|
|
$item['title'] = t($item['link_title']);
|
|
}
|
|
else {
|
|
$item['title'] = $item['link_title'];
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Provides menu link unserializing, access control, and argument handling.
|
|
*
|
|
* @param array $item
|
|
* The passed in item has the following keys:
|
|
* - access: (optional) Becomes TRUE if the item is accessible, FALSE
|
|
* otherwise. If the key is not set, the access manager is used to
|
|
* determine the access.
|
|
* - options: (required) Is unserialized and copied to $item['localized_options'].
|
|
* - link_title: (required) The title of the menu link.
|
|
* - route_name: (required) The route name of the menu link.
|
|
* - route_parameters: (required) The unserialized route parameters of the menu link.
|
|
* The passed in item is changed by the following keys:
|
|
* - href: The actual path to the link. This path is generated from the
|
|
* link_path of the menu link entity.
|
|
* - title: The title of the link. This title is generated from the
|
|
* link_title of the menu link entity.
|
|
*/
|
|
function _menu_link_translate(&$item) {
|
|
if (!is_array($item['options'])) {
|
|
$item['options'] = (array) unserialize($item['options']);
|
|
}
|
|
$item['localized_options'] = $item['options'];
|
|
$item['title'] = $item['link_title'];
|
|
if ($item['external'] || empty($item['route_name'])) {
|
|
$item['access'] = 1;
|
|
$item['href'] = $item['link_path'];
|
|
$item['route_parameters'] = array();
|
|
// Set to NULL so that drupal_pre_render_link() is certain to skip it.
|
|
$item['route_name'] = NULL;
|
|
}
|
|
else {
|
|
$item['href'] = NULL;
|
|
if (!is_array($item['route_parameters'])) {
|
|
$item['route_parameters'] = (array) unserialize($item['route_parameters']);
|
|
}
|
|
// menu_tree_check_access() may set this ahead of time for links to nodes.
|
|
if (!isset($item['access'])) {
|
|
$item['access'] = \Drupal::getContainer()->get('access_manager')->checkNamedRoute($item['route_name'], $item['route_parameters'], \Drupal::currentUser());
|
|
}
|
|
// For performance, don't localize a link the user can't access.
|
|
if ($item['access']) {
|
|
_menu_item_localize($item);
|
|
}
|
|
}
|
|
|
|
// Allow other customizations - e.g. adding a page-specific query string to the
|
|
// options array. For performance reasons we only invoke this hook if the link
|
|
// has the 'alter' flag set in the options array.
|
|
if (!empty($item['options']['alter'])) {
|
|
\Drupal::moduleHandler()->alter('translated_menu_link', $item, $map);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Implements template_preprocess_HOOK() for theme_menu_tree().
|
|
*/
|
|
function template_preprocess_menu_tree(&$variables) {
|
|
$variables['tree'] = $variables['tree']['#children'];
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a wrapper for a menu sub-tree.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - tree: An HTML string containing the tree's items.
|
|
*
|
|
* @see template_preprocess_menu_tree()
|
|
* @ingroup themeable
|
|
*/
|
|
function theme_menu_tree($variables) {
|
|
return '<ul class="menu">' . $variables['tree'] . '</ul>';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a menu link and submenu.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - element: Structured array data for a menu link.
|
|
*
|
|
* @ingroup themeable
|
|
*/
|
|
function theme_menu_link(array $variables) {
|
|
$element = $variables['element'];
|
|
$sub_menu = '';
|
|
|
|
if ($element['#below']) {
|
|
$sub_menu = drupal_render($element['#below']);
|
|
}
|
|
$element['#localized_options']['set_active_class'] = TRUE;
|
|
$output = l($element['#title'], $element['#href'], $element['#localized_options']);
|
|
return '<li' . new Attribute($element['#attributes']) . '>' . $output . $sub_menu . "</li>\n";
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a single local task link.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - element: A render element containing:
|
|
* - #link: A menu link array with 'title', 'href', and 'localized_options'
|
|
* keys.
|
|
* - #active: A boolean indicating whether the local task is active.
|
|
*
|
|
* @ingroup themeable
|
|
*/
|
|
function theme_menu_local_task($variables) {
|
|
$link = $variables['element']['#link'];
|
|
$link += array(
|
|
'localized_options' => array(),
|
|
);
|
|
$link_text = $link['title'];
|
|
|
|
if (!empty($variables['element']['#active'])) {
|
|
// Add text to indicate active tab for non-visual users.
|
|
$active = '<span class="visually-hidden">' . t('(active tab)') . '</span>';
|
|
|
|
// If the link does not contain HTML already, String::checkPlain() it now.
|
|
// After we set 'html'=TRUE the link will not be sanitized by l().
|
|
if (empty($link['localized_options']['html'])) {
|
|
$link['title'] = String::checkPlain($link['title']);
|
|
}
|
|
$link['localized_options']['html'] = TRUE;
|
|
$link_text = t('!local-task-title!active', array('!local-task-title' => $link['title'], '!active' => $active));
|
|
}
|
|
$link['localized_options']['set_active_class'] = TRUE;
|
|
|
|
if (!empty($link['href'])) {
|
|
// @todo - remove this once all pages are converted to routes.
|
|
$a_tag = l($link_text, $link['href'], $link['localized_options']);
|
|
}
|
|
else {
|
|
$a_tag = \Drupal::l($link_text, $link['route_name'], $link['route_parameters'], $link['localized_options']);
|
|
}
|
|
|
|
return '<li' . (!empty($variables['element']['#active']) ? ' class="active"' : '') . '>' . $a_tag . '</li>';
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for a single local action link.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - element: A render element containing:
|
|
* - #link: A menu link array with 'title', 'href', and 'localized_options'
|
|
* keys.
|
|
*
|
|
* @ingroup themeable
|
|
*/
|
|
function theme_menu_local_action($variables) {
|
|
$link = $variables['element']['#link'];
|
|
$link += array(
|
|
'href' => '',
|
|
'localized_options' => array(),
|
|
'route_parameters' => array(),
|
|
);
|
|
$link['localized_options']['attributes']['class'][] = 'button';
|
|
$link['localized_options']['attributes']['class'][] = 'button-action';
|
|
$link['localized_options']['set_active_class'] = TRUE;
|
|
|
|
$output = '<li>';
|
|
// @todo Remove this check and the call to l() when all pages are converted to
|
|
// routes.
|
|
// @todo Figure out how to support local actions without a href properly.
|
|
if ($link['href'] === '' && !empty($link['route_name'])) {
|
|
$output .= Drupal::l($link['title'], $link['route_name'], $link['route_parameters'], $link['localized_options']);
|
|
}
|
|
else {
|
|
$output .= l($link['title'], $link['href'], $link['localized_options']);
|
|
}
|
|
$output .= "</li>";
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Returns an array containing the names of system-defined (default) menus.
|
|
*/
|
|
function menu_list_system_menus() {
|
|
return array(
|
|
'tools' => 'Tools',
|
|
'admin' => 'Administration',
|
|
'account' => 'User account menu',
|
|
'main' => 'Main navigation',
|
|
'footer' => 'Footer menu',
|
|
);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of links to be rendered as the Main menu.
|
|
*/
|
|
function menu_main_menu() {
|
|
$main_links_source = _menu_get_links_source('main_links', 'main');
|
|
return menu_navigation_links($main_links_source);
|
|
}
|
|
|
|
/**
|
|
* Returns an array of links to be rendered as the Secondary links.
|
|
*/
|
|
function menu_secondary_menu() {
|
|
$main_links_source = _menu_get_links_source('main_links', 'main');
|
|
$secondary_links_source = _menu_get_links_source('secondary_links', 'account');
|
|
|
|
// If the secondary menu source is set as the primary menu, we display the
|
|
// second level of the primary menu.
|
|
if ($secondary_links_source == $main_links_source) {
|
|
return menu_navigation_links($main_links_source, 1);
|
|
}
|
|
else {
|
|
return menu_navigation_links($secondary_links_source, 0);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Returns the source of links of a menu.
|
|
*
|
|
* @param string $name
|
|
* A string configuration key of menu link source.
|
|
* @param string $default
|
|
* Default menu name.
|
|
*
|
|
* @return string
|
|
* Returns menu name, if exist
|
|
*/
|
|
function _menu_get_links_source($name, $default) {
|
|
$config = \Drupal::config('menu_ui.settings');
|
|
return \Drupal::moduleHandler()->moduleExists('menu_ui') ? $config->get($name) : $default;
|
|
}
|
|
|
|
/**
|
|
* Returns an array of links for a navigation menu.
|
|
*
|
|
* @param $menu_name
|
|
* The name of the menu.
|
|
* @param $level
|
|
* Optional, the depth of the menu to be returned.
|
|
*
|
|
* @return
|
|
* An array of links of the specified menu and level.
|
|
*/
|
|
function menu_navigation_links($menu_name, $level = 0) {
|
|
// Don't even bother querying the menu table if no menu is specified.
|
|
if (empty($menu_name)) {
|
|
return array();
|
|
}
|
|
|
|
// Get the menu hierarchy for the current page.
|
|
/** @var \Drupal\menu_link\MenuTreeInterface $menu_tree */
|
|
$menu_tree = \Drupal::service('menu_link.tree');
|
|
$tree = $menu_tree->buildPageData($menu_name, $level + 1);
|
|
|
|
// Go down the active trail until the right level is reached.
|
|
while ($level-- > 0 && $tree) {
|
|
// Loop through the current level's items until we find one that is in trail.
|
|
while ($item = array_shift($tree)) {
|
|
if ($item['link']['in_active_trail']) {
|
|
// If the item is in the active trail, we continue in the subtree.
|
|
$tree = empty($item['below']) ? array() : $item['below'];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Create a single level of links.
|
|
$links = array();
|
|
foreach ($tree as $item) {
|
|
if (!$item['link']['hidden']) {
|
|
$class = '';
|
|
$l = $item['link']['localized_options'];
|
|
$l['href'] = $item['link']['link_path'];
|
|
$l['title'] = $item['link']['title'];
|
|
if ($item['link']['in_active_trail']) {
|
|
$class = ' active-trail';
|
|
$l['attributes']['class'][] = 'active-trail';
|
|
}
|
|
// Keyed with the unique mlid to generate classes in links.html.twig.
|
|
$links['menu-' . $item['link']['mlid'] . $class] = $l;
|
|
}
|
|
}
|
|
return $links;
|
|
}
|
|
|
|
/**
|
|
* Collects the local tasks (tabs), action links, and the root path.
|
|
*
|
|
* @param int $level
|
|
* The level of tasks you ask for. Primary tasks are 0, secondary are 1.
|
|
*
|
|
* @return array
|
|
* An array containing
|
|
* - tabs: Local tasks for the requested level.
|
|
* - actions: Action links for the requested level.
|
|
* - root_path: The router path for the current page. If the current page is
|
|
* a default local task, then this corresponds to the parent tab.
|
|
*
|
|
* @see hook_menu_local_tasks()
|
|
* @see hook_menu_local_tasks_alter()
|
|
*/
|
|
function menu_local_tasks($level = 0) {
|
|
$data = &drupal_static(__FUNCTION__);
|
|
$root_path = &drupal_static(__FUNCTION__ . ':root_path', '');
|
|
$empty = array(
|
|
'tabs' => array(),
|
|
'actions' => array(),
|
|
'root_path' => &$root_path,
|
|
);
|
|
|
|
if (!isset($data)) {
|
|
// Look for route-based tabs.
|
|
$data['tabs'] = array();
|
|
$data['actions'] = array();
|
|
|
|
$route_name = \Drupal::routeMatch()->getRouteName();
|
|
if (!empty($route_name)) {
|
|
$manager = \Drupal::service('plugin.manager.menu.local_task');
|
|
$local_tasks = $manager->getTasksBuild($route_name);
|
|
foreach ($local_tasks as $level => $items) {
|
|
$data['tabs'][$level] = empty($data['tabs'][$level]) ? $items : array_merge($data['tabs'][$level], $items);
|
|
}
|
|
}
|
|
|
|
// Allow modules to dynamically add further tasks.
|
|
$module_handler = \Drupal::moduleHandler();
|
|
foreach ($module_handler->getImplementations('menu_local_tasks') as $module) {
|
|
$function = $module . '_menu_local_tasks';
|
|
$function($data, $route_name);
|
|
}
|
|
// Allow modules to alter local tasks.
|
|
$module_handler->alter('menu_local_tasks', $data, $route_name);
|
|
}
|
|
|
|
if (isset($data['tabs'][$level])) {
|
|
return array(
|
|
'tabs' => $data['tabs'][$level],
|
|
'actions' => $data['actions'],
|
|
'root_path' => $root_path,
|
|
);
|
|
}
|
|
elseif (!empty($data['actions'])) {
|
|
return array('actions' => $data['actions']) + $empty;
|
|
}
|
|
return $empty;
|
|
}
|
|
|
|
/**
|
|
* Returns the rendered local tasks at the top level.
|
|
*/
|
|
function menu_primary_local_tasks() {
|
|
$links = menu_local_tasks(0);
|
|
// Do not display single tabs.
|
|
return count(Element::getVisibleChildren($links['tabs'])) > 1 ? $links['tabs'] : '';
|
|
}
|
|
|
|
/**
|
|
* Returns the rendered local tasks at the second level.
|
|
*/
|
|
function menu_secondary_local_tasks() {
|
|
$links = menu_local_tasks(1);
|
|
// Do not display single tabs.
|
|
return count(Element::getVisibleChildren($links['tabs'])) > 1 ? $links['tabs'] : '';
|
|
}
|
|
|
|
/**
|
|
* Returns the rendered local actions at the current level.
|
|
*/
|
|
function menu_get_local_actions() {
|
|
$links = menu_local_tasks();
|
|
$route_name = Drupal::routeMatch()->getRouteName();
|
|
$manager = \Drupal::service('plugin.manager.menu.local_action');
|
|
return $manager->getActionsForRoute($route_name) + $links['actions'];
|
|
}
|
|
|
|
/**
|
|
* Returns the router path, or the path for a default local task's parent.
|
|
*/
|
|
function menu_tab_root_path() {
|
|
$links = menu_local_tasks();
|
|
return $links['root_path'];
|
|
}
|
|
|
|
/**
|
|
* Returns a renderable element for the primary and secondary tabs.
|
|
*/
|
|
function menu_local_tabs() {
|
|
$build = array(
|
|
'#theme' => 'menu_local_tasks',
|
|
'#primary' => menu_primary_local_tasks(),
|
|
'#secondary' => menu_secondary_local_tasks(),
|
|
);
|
|
return !empty($build['#primary']) || !empty($build['#secondary']) ? $build : array();
|
|
}
|
|
|
|
/**
|
|
* Returns HTML for primary and secondary local tasks.
|
|
*
|
|
* @param $variables
|
|
* An associative array containing:
|
|
* - primary: (optional) An array of local tasks (tabs).
|
|
* - secondary: (optional) An array of local tasks (tabs).
|
|
*
|
|
* @ingroup themeable
|
|
* @see menu_local_tasks()
|
|
*/
|
|
function theme_menu_local_tasks(&$variables) {
|
|
$output = '';
|
|
|
|
if (!empty($variables['primary'])) {
|
|
$variables['primary']['#prefix'] = '<h2 class="visually-hidden">' . t('Primary tabs') . '</h2>';
|
|
$variables['primary']['#prefix'] .= '<ul class="tabs primary">';
|
|
$variables['primary']['#suffix'] = '</ul>';
|
|
$output .= drupal_render($variables['primary']);
|
|
}
|
|
if (!empty($variables['secondary'])) {
|
|
$variables['secondary']['#prefix'] = '<h2 class="visually-hidden">' . t('Secondary tabs') . '</h2>';
|
|
$variables['secondary']['#prefix'] .= '<ul class="tabs secondary">';
|
|
$variables['secondary']['#suffix'] = '</ul>';
|
|
$output .= drupal_render($variables['secondary']);
|
|
}
|
|
|
|
return $output;
|
|
}
|
|
|
|
/**
|
|
* Sets (or gets) the active menu for the current page.
|
|
*
|
|
* The active menu for the page determines the active trail.
|
|
*
|
|
* @return
|
|
* An array of menu machine names, in order of preference. The
|
|
* 'system.menu:active_menus_default' config item may be used to assert a menu
|
|
* order different from the order of creation, or to prevent a particular menu
|
|
* from being used at all in the active trail.
|
|
*/
|
|
function menu_set_active_menu_names($menu_names = NULL) {
|
|
$active = &drupal_static(__FUNCTION__);
|
|
|
|
if (isset($menu_names) && is_array($menu_names)) {
|
|
$active = $menu_names;
|
|
}
|
|
elseif (!isset($active)) {
|
|
$config = \Drupal::config('system.menu');
|
|
$active = $config->get('active_menus_default') ?: array_keys(menu_list_system_menus());
|
|
}
|
|
return $active;
|
|
}
|
|
|
|
/**
|
|
* Gets the active menu for the current page.
|
|
*/
|
|
function menu_get_active_menu_names() {
|
|
return menu_set_active_menu_names();
|
|
}
|
|
|
|
/**
|
|
* Looks up the preferred menu link for a given system path.
|
|
*
|
|
* @param $path
|
|
* The path; for example, 'node/5'. The function will find the corresponding
|
|
* menu link ('node/5' if it exists, or fallback to 'node/%').
|
|
* @param $selected_menu
|
|
* The name of a menu used to restrict the search for a preferred menu link.
|
|
* If not specified, all the menus returned by menu_get_active_menu_names()
|
|
* will be used.
|
|
*
|
|
* @return
|
|
* A fully translated menu link, or FALSE if no matching menu link was
|
|
* found. The most specific menu link ('node/5' preferred over 'node/%') in
|
|
* the most preferred menu (as defined by menu_get_active_menu_names()) is
|
|
* returned.
|
|
*/
|
|
function menu_link_get_preferred($path = NULL, $selected_menu = NULL) {
|
|
$preferred_links = &drupal_static(__FUNCTION__);
|
|
|
|
if (!isset($path)) {
|
|
$path = current_path();
|
|
}
|
|
|
|
if (empty($selected_menu)) {
|
|
// Use an illegal menu name as the key for the preferred menu link.
|
|
$selected_menu = MENU_PREFERRED_LINK;
|
|
}
|
|
|
|
if (!isset($preferred_links[$path])) {
|
|
// Look for the correct menu link by building a list of candidate paths,
|
|
// which are ordered by priority (translated hrefs are preferred over
|
|
// untranslated paths). Afterwards, the most relevant path is picked from
|
|
// the menus, ordered by menu preference.
|
|
$path_candidates = array();
|
|
// 1. The current item href.
|
|
// @todo simplify this code and convert to using route names.
|
|
// @see https://drupal.org/node/2154949
|
|
$path_candidates[$path] = $path;
|
|
|
|
// Retrieve a list of menu names, ordered by preference.
|
|
$menu_names = menu_get_active_menu_names();
|
|
// Put the selected menu at the front of the list.
|
|
array_unshift($menu_names, $selected_menu);
|
|
|
|
$menu_links = entity_load_multiple_by_properties('menu_link', array('link_path' => $path_candidates));
|
|
|
|
// Sort candidates by link path and menu name.
|
|
$candidates = array();
|
|
foreach ($menu_links as $candidate) {
|
|
$candidates[$candidate['link_path']][$candidate['menu_name']] = $candidate;
|
|
// Add any menus not already in the menu name search list.
|
|
if (!in_array($candidate['menu_name'], $menu_names)) {
|
|
$menu_names[] = $candidate['menu_name'];
|
|
}
|
|
}
|
|
|
|
// Store the most specific link for each menu. Also save the most specific
|
|
// link of the most preferred menu in $preferred_link.
|
|
foreach ($path_candidates as $link_path) {
|
|
if (isset($candidates[$link_path])) {
|
|
foreach ($menu_names as $menu_name) {
|
|
if (empty($preferred_links[$path][$menu_name]) && isset($candidates[$link_path][$menu_name])) {
|
|
$candidate_item = $candidates[$link_path][$menu_name];
|
|
$candidate_item['access'] = \Drupal::service('access_manager')->checkNamedRoute($candidate_item['route_name'], $candidate_item['route_parameters'], \Drupal::currentUser());
|
|
if ($candidate_item['access']) {
|
|
_menu_item_localize($candidate_item);
|
|
$preferred_links[$path][$menu_name] = $candidate_item;
|
|
if (empty($preferred_links[$path][MENU_PREFERRED_LINK])) {
|
|
// Store the most specific link.
|
|
$preferred_links[$path][MENU_PREFERRED_LINK] = $candidate_item;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return isset($preferred_links[$path][$selected_menu]) ? $preferred_links[$path][$selected_menu] : FALSE;
|
|
}
|
|
|
|
/**
|
|
* Clears all cached menu data.
|
|
*
|
|
* This should be called any time broad changes
|
|
* might have been made to the router items or menu links.
|
|
*/
|
|
function menu_cache_clear_all() {
|
|
\Drupal::cache('data')->deleteAll();
|
|
menu_reset_static_cache();
|
|
}
|
|
|
|
/**
|
|
* Resets the menu system static cache.
|
|
*/
|
|
function menu_reset_static_cache() {
|
|
\Drupal::entityManager()
|
|
->getStorage('menu_link')->resetCache();
|
|
drupal_static_reset('menu_link_get_preferred');
|
|
}
|
|
|
|
/**
|
|
* Saves menu links recursively for menu_links_rebuild_defaults().
|
|
*/
|
|
function _menu_link_save_recursive($controller, $machine_name, &$children, &$links) {
|
|
$menu_link = $links[$machine_name];
|
|
if ($menu_link->isNew() || !$menu_link->customized) {
|
|
if (!isset($menu_link->plid) && !empty($menu_link->parent) && !empty($links[$menu_link->parent])) {
|
|
$parent = $links[$menu_link->parent];
|
|
|
|
if (empty($menu_link->menu_name) || $parent->menu_name == $menu_link->menu_name) {
|
|
$menu_link->plid = $parent->id();
|
|
$menu_link->menu_name = $parent->menu_name;
|
|
}
|
|
}
|
|
$controller->save($menu_link);
|
|
}
|
|
if (!empty($children[$machine_name])) {
|
|
foreach ($children[$machine_name] as $next_name) {
|
|
_menu_link_save_recursive($controller, $next_name, $children, $links);
|
|
}
|
|
}
|
|
// Remove processed link names so we can find stragglers.
|
|
unset($children[$machine_name]);
|
|
}
|
|
|
|
/**
|
|
* Builds menu links for the items returned from the menu_link.static service.
|
|
*/
|
|
function menu_link_rebuild_defaults() {
|
|
// Ensure that all configuration used to build the menu items are loaded
|
|
// without overrides.
|
|
$old_state = \Drupal::configFactory()->getOverrideState();
|
|
\Drupal::configFactory()->setOverrideState(FALSE);
|
|
$module_handler = \Drupal::moduleHandler();
|
|
if (!$module_handler->moduleExists('menu_link')) {
|
|
// The Menu link module may not be available during install, so rebuild
|
|
// when possible.
|
|
return;
|
|
}
|
|
/** @var \Drupal\menu_link\MenuLinkStorageInterface $menu_link_storage */
|
|
$menu_link_storage = \Drupal::entityManager()
|
|
->getStorage('menu_link');
|
|
$links = array();
|
|
$children = array();
|
|
$top_links = array();
|
|
$all_links = \Drupal::service('menu_link.static')->getLinks();
|
|
if ($all_links) {
|
|
foreach ($all_links as $machine_name => $link) {
|
|
// For performance reasons, do a straight query now and convert to a menu
|
|
// link entity later.
|
|
// @todo revisit before release.
|
|
$existing_item = db_select('menu_links')
|
|
->fields('menu_links')
|
|
->condition('machine_name', $machine_name)
|
|
->execute()->fetchObject();
|
|
if ($existing_item) {
|
|
$existing_item->options = unserialize($existing_item->options);
|
|
$existing_item->route_parameters = unserialize($existing_item->route_parameters);
|
|
$link['mlid'] = $existing_item->mlid;
|
|
$link['plid'] = $existing_item->plid;
|
|
$link['uuid'] = $existing_item->uuid;
|
|
$link['customized'] = $existing_item->customized;
|
|
$link['updated'] = $existing_item->updated;
|
|
$menu_link = $menu_link_storage->createFromDefaultLink($link);
|
|
// @todo Do not create a new entity in order to update it, see
|
|
// https://drupal.org/node/2241865
|
|
$menu_link->setOriginalId($existing_item->mlid);
|
|
|
|
// Convert the existing item to a typed object.
|
|
/** @var \Drupal\menu_link\MenuLinkInterface $existing_item */
|
|
$existing_item = $menu_link_storage->create(get_object_vars($existing_item));
|
|
|
|
if (!$existing_item->customized) {
|
|
// A change in the default menu links may move the link to a
|
|
// different menu or parent.
|
|
if (!empty($link['menu_name']) && ($link['menu_name'] != $existing_item->menu_name)) {
|
|
$menu_link->plid = NULL;
|
|
$menu_link->menu_name = $link['menu_name'];
|
|
}
|
|
elseif (!empty($link['parent'])) {
|
|
$menu_link->plid = NULL;
|
|
}
|
|
|
|
$menu_link->original = $existing_item;
|
|
}
|
|
}
|
|
else {
|
|
if (empty($link['route_name']) && empty($link['link_path'])) {
|
|
\Drupal::logger('menu_link')->error('Menu_link %machine_name does neither provide a route_name nor a link_path, so it got skipped.', array('%machine_name' => $machine_name));
|
|
continue;
|
|
}
|
|
$menu_link = $menu_link_storage->createFromDefaultLink($link);
|
|
}
|
|
if (!empty($link['parent'])) {
|
|
$children[$link['parent']][$machine_name] = $machine_name;
|
|
$menu_link->parent = $link['parent'];
|
|
if (empty($link['menu_name'])) {
|
|
// Reset the default menu name so it is populated from the parent.
|
|
$menu_link->menu_name = NULL;
|
|
}
|
|
}
|
|
else {
|
|
// A top level link - we need them to root our tree.
|
|
$top_links[$machine_name] = $machine_name;
|
|
$menu_link->plid = 0;
|
|
}
|
|
$links[$machine_name] = $menu_link;
|
|
}
|
|
}
|
|
foreach ($top_links as $machine_name) {
|
|
_menu_link_save_recursive($menu_link_storage, $machine_name, $children, $links);
|
|
}
|
|
// Handle any children we didn't find starting from top-level links.
|
|
foreach ($children as $orphan_links) {
|
|
foreach ($orphan_links as $machine_name) {
|
|
// Force it to the top level.
|
|
$links[$machine_name]->plid = 0;
|
|
_menu_link_save_recursive($menu_link_storage, $machine_name, $children, $links);
|
|
}
|
|
}
|
|
|
|
// Find any item whose default menu link no longer exists.
|
|
if ($all_links) {
|
|
$query = \Drupal::entityQuery('menu_link')
|
|
->condition('machine_name', array_keys($all_links), 'NOT IN')
|
|
->exists('machine_name')
|
|
->condition('external', 0)
|
|
->condition('updated', 0)
|
|
->condition('customized', 0)
|
|
->sort('depth', 'DESC');
|
|
$result = $query->execute();
|
|
}
|
|
else {
|
|
$result = array();
|
|
}
|
|
|
|
// Remove all such items. Starting from those with the greatest depth will
|
|
// minimize the amount of re-parenting done by the menu link controller.
|
|
if ($result) {
|
|
menu_link_delete_multiple($result, TRUE);
|
|
}
|
|
\Drupal::configFactory()->setOverrideState($old_state);
|
|
}
|
|
|
|
/**
|
|
* Returns an array containing all links for a menu.
|
|
*
|
|
* @param $menu_name
|
|
* The name of the menu whose links should be returned.
|
|
*
|
|
* @return
|
|
* An array of menu links.
|
|
*/
|
|
function menu_load_links($menu_name) {
|
|
$links = array();
|
|
|
|
$query = \Drupal::entityQuery('menu_link')
|
|
->condition('menu_name', $menu_name)
|
|
// Order by weight so as to be helpful for menus that are only one level
|
|
// deep.
|
|
->sort('weight');
|
|
$result = $query->execute();
|
|
|
|
if (!empty($result)) {
|
|
$links = menu_link_load_multiple($result);
|
|
}
|
|
|
|
return $links;
|
|
}
|
|
|
|
/**
|
|
* Deletes all links for a menu.
|
|
*
|
|
* @param $menu_name
|
|
* The name of the menu whose links will be deleted.
|
|
*/
|
|
function menu_delete_links($menu_name) {
|
|
$links = menu_load_links($menu_name);
|
|
menu_link_delete_multiple(array_keys($links), FALSE, TRUE);
|
|
}
|
|
|
|
/**
|
|
* Updates the expanded menu item state at most twice per page load.
|
|
*/
|
|
function _menu_update_expanded_menus() {
|
|
$expanded_menus_updated = &drupal_static(__FUNCTION__, 0);
|
|
|
|
// Update the expanded menu item state, but at most twice, including at
|
|
// the end of the page load when there are multiple links saved or deleted.
|
|
if ($expanded_menus_updated == 0) {
|
|
// Keep track of which menus have expanded items.
|
|
_menu_set_expanded_menus();
|
|
$expanded_menus_updated = 1;
|
|
}
|
|
elseif ($expanded_menus_updated == 1) {
|
|
// Keep track of which menus have expanded items.
|
|
drupal_register_shutdown_function('_menu_set_expanded_menus');
|
|
$expanded_menus_updated = 2;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Updates a list of menus with expanded items.
|
|
*/
|
|
function _menu_set_expanded_menus() {
|
|
$names = array();
|
|
$result = Drupal::entityQueryAggregate('menu_link')
|
|
->condition('expanded', 0, '<>')
|
|
->groupBy('menu_name')
|
|
->execute();
|
|
|
|
// Flatten the resulting array.
|
|
foreach($result as $k => $v) {
|
|
$names[$k] = $v['menu_name'];
|
|
}
|
|
|
|
\Drupal::state()->set('menu_expanded', $names);
|
|
}
|
|
|
|
/**
|
|
* @} End of "defgroup menu".
|
|
*/
|