Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

319 lines (283 sloc) 11.079 kB
<?php
/**
* The object manages the main CMS menu. See {@link LeftAndMain::init()} for example usage.
*
* The menu will be automatically populated with menu items for subclasses of {@link LeftAndMain}.
* That is, for each class in the CMS that creates an administration panel, a CMS menu item will be created.
* The default configuration will also include a 'help' link to the SilverStripe user documentation.
*
* @package cms
* @subpackage content
*/
class CMSMenu extends Object implements IteratorAggregate, i18nEntityProvider
{
/**
* An array of changes to be made to the menu items, in the order that the changes should be
* applied. Each item is a map in one of the two forms:
* - array('type' => 'add', 'item' => new CMSMenuItem(...) )
* - array('type' => 'remove', 'code' => 'codename' )
*/
protected static $menu_item_changes = array();
/**
* Set to true if clear_menu() is called, to indicate that the default menu shouldn't be
* included
*/
protected static $menu_is_cleared = false;
/**
* Generate CMS main menu items by collecting valid
* subclasses of {@link LeftAndMain}
*/
public static function populate_menu() {
self::$menu_is_cleared = false;
}
/**
* Add Director rules for all of the CMS controllers.
*/
public static function add_director_rules() {
array_map(array('self','add_director_rule_for_controller'), self::get_cms_classes());
}
/**
* Add a LeftAndMain controller to the CMS menu.
*
* @param string $controllerClass The class name of the controller
* @return The result of the operation
* @todo A director rule is added when a controller link is added, but it won't be removed
* when the item is removed. Functionality needed in {@link Director}.
*/
public static function add_controller($controllerClass) {
if($menuItem = self::menuitem_for_controller($controllerClass)) {
self::add_menu_item_obj($controllerClass, $menuItem);
}
}
/**
* Return a CMSMenuItem to add the given controller to the CMSMenu
*/
protected static function menuitem_for_controller($controllerClass) {
$urlBase = Object::get_static($controllerClass, 'url_base');
$urlSegment = Object::get_static($controllerClass, 'url_segment');
$menuPriority = Object::get_static($controllerClass, 'menu_priority');
// Don't add menu items defined the old way
if($urlSegment === null && $controllerClass != "CMSMain") return;
$link = Controller::join_links($urlBase, $urlSegment) . '/';
// doesn't work if called outside of a controller context (e.g. in _config.php)
// as the locale won't be detected properly. Use {@link LeftAndMain->MainMenu()} to update
// titles for existing menu entries
$defaultTitle = LeftAndMain::menu_title_for_class($controllerClass);
$menuTitle = _t("{$controllerClass}.MENUTITLE", $defaultTitle);
return new CMSMenuItem($menuTitle, $link, $controllerClass, $menuPriority);
}
/**
* Add the appropriate Director rules for the given controller.
*/
protected static function add_director_rule_for_controller($controllerClass) {
$urlBase = Object::get_static($controllerClass, 'url_base');
$urlSegment = Object::get_static($controllerClass, 'url_segment');
$urlRule = Object::get_static($controllerClass, 'url_rule');
$urlPriority = Object::get_static($controllerClass, 'url_priority');
if($urlSegment || $controllerClass == "CMSMain") {
$link = Controller::join_links($urlBase, $urlSegment) . '/';
// Make director rule
if($urlRule[0] == '/') $urlRule = substr($urlRule,1);
$rule = $link . '/' . $urlRule; // the / will combine with the / on the end of $link to make a //
Director::addRules($urlPriority, array(
$rule => $controllerClass
));
}
}
/**
* Add an arbitrary URL to the CMS menu.
*
* @param string $code A unique identifier (used to create a CSS ID and as it's key in {@link $menu_items}
* @param string $menuTitle The link's title in the CMS menu
* @param string $url The url of the link
* @param integer $priority The menu priority (sorting order) of the menu item. Higher priorities will be further left.
* @return boolean The result of the operation.
*/
public static function add_link($code, $menuTitle, $url, $priority = -1) {
return self::add_menu_item($code, $menuTitle, $url, null, $priority);
}
/**
* Add a navigation item to the main administration menu showing in the top bar.
*
* uses {@link CMSMenu::$menu_items}
*
* @param string $code Unique identifier for this menu item (e.g. used by {@link replace_menu_item()} and
* {@link remove_menu_item}. Also used as a CSS-class for icon customization.
* @param string $menuTitle Localized title showing in the menu bar
* @param string $url A relative URL that will be linked in the menu bar.
* @param string $controllerClass The controller class for this menu, used to check permisssions.
* If blank, it's assumed that this is public, and always shown to users who
* have the rights to access some other part of the admin area.
* @return boolean Success
*/
public static function add_menu_item($code, $menuTitle, $url, $controllerClass = null, $priority = -1) {
// If a class is defined, then force the use of that as a code. This helps prevent menu item duplication
if($controllerClass) $code = $controllerClass;
return self::replace_menu_item($code, $menuTitle, $url, $controllerClass, $priority);
}
/**
* Get a single menu item by its code value.
*
* @param string $code
* @return array
*/
public static function get_menu_item($code) {
$menuItems = self::get_menu_items();
return (isset($menuItems[$code])) ? $menuItems[$code] : false;
}
/**
* Get all menu entries.
*
* @return array
*/
public static function get_menu_items() {
$menuItems = array();
// Set up default menu items
if(!self::$menu_is_cleared) {
$cmsClasses = self::get_cms_classes();
foreach($cmsClasses as $cmsClass) {
$menuItem = self::menuitem_for_controller($cmsClass);
if($menuItem) $menuItems[$cmsClass] = $menuItem;
}
}
// Apply changes
foreach(self::$menu_item_changes as $change) {
switch($change['type']) {
case 'add':
$menuItems[$change['code']] = $change['item'];
break;
case 'remove':
unset($menuItems[$change['code']]);
break;
default:
user_error("Bad menu item change type {$change[type]}", E_USER_WARNING);
}
}
// Sort menu items according to priority
$menuPriority = array();
$i = 0;
foreach($menuItems as $key => $menuItem) {
$i++;
// This funny litle formula ensures that the first item added with the same priority will be left-most.
$menuPriority[$key] = $menuItem->priority*100 - $i;
}
array_multisort($menuPriority, SORT_DESC, $menuItems);
return $menuItems;
}
/**
* Get all menu items that the passed member can view.
* Defaults to {@link Member::currentUser()}.
*
* @param Member $member
* @return array
*/
public static function get_viewable_menu_items($member = null) {
if(!$member && $member !== FALSE) {
$member = Member::currentUser();
}
$viewableMenuItems = array();
$allMenuItems = self::get_menu_items();
if($allMenuItems) foreach($allMenuItems as $code => $menuItem) {
// exclude all items which have a controller to perform permission
// checks on
if($menuItem->controller && !singleton($menuItem->controller)->canView($member)) continue;
$viewableMenuItems[$code] = $menuItem;
}
return $viewableMenuItems;
}
/**
* Removes an existing item from the menu.
*
* @param string $code Unique identifier for this menu item
*/
public static function remove_menu_item($code) {
self::$menu_item_changes[] = array('type' => 'remove', 'code' => $code);
}
/**
* Clears the entire menu
*/
public static function clear_menu() {
self::$menu_item_changes = array();
self::$menu_is_cleared = true;
}
/**
* Replace a navigation item to the main administration menu showing in the top bar.
*
* @param string $code Unique identifier for this menu item (e.g. used by {@link replace_menu_item()} and
* {@link remove_menu_item}. Also used as a CSS-class for icon customization.
* @param string $menuTitle Localized title showing in the menu bar
* @param string $url A relative URL that will be linked in the menu bar.
* Make sure to add a matching route via {@link Director::addRules()} to this url.
* @param string $controllerClass The controller class for this menu, used to check permisssions.
* If blank, it's assumed that this is public, and always shown to users who
* have the rights to access some other part of the admin area.
* @return boolean Success
*/
public static function replace_menu_item($code, $menuTitle, $url, $controllerClass = null, $priority = -1) {
self::$menu_item_changes[] = array(
'type' => 'add',
'code' => $code,
'item' => new CMSMenuItem($menuTitle, $url, $controllerClass, $priority),
);
}
/**
* Add a previously built menuitem object to the menu
*/
protected static function add_menu_item_obj($code, $cmsMenuItem) {
self::$menu_item_changes[] = array(
'type' => 'add',
'code' => $code,
'item' => $cmsMenuItem,
);
}
/**
* A utility funciton to retrieve subclasses of a given class that
* are instantiable (ie, not abstract) and have a valid menu title.
*
* @todo A variation of this function could probably be moved to {@link ClassInfo}
* @param string $root The root class to begin finding subclasses
* @param boolean $recursive Look for subclasses recursively?
* @return array Valid, unique subclasses
*/
public static function get_cms_classes($root = 'LeftAndMain', $recursive = true) {
$subClasses = array_values(ClassInfo::subclassesFor($root));
foreach($subClasses as $className) {
if($recursive && $className != $root) {
$subClasses = array_merge($subClasses, array_values(ClassInfo::subclassesFor($className)));
}
}
$subClasses = array_unique($subClasses);
foreach($subClasses as $key => $className) {
// Remove abstract classes and LeftAndMain
$classReflection = new ReflectionClass($className);
if(
!$classReflection->isInstantiable()
|| 'LeftAndMain' == $className
|| ClassInfo::classImplements($className, 'TestOnly')
) {
unset($subClasses[$key]);
}
}
return $subClasses;
}
/**
* IteratorAggregate Interface Method. Iterates over the menu items.
*/
function getIterator() {
return new ArrayIterator(self::get_menu_items());
}
/**
* Provide menu titles to the i18n entity provider
*/
function provideI18nEntities() {
$cmsClasses = self::get_cms_classes();
$entities = array();
foreach($cmsClasses as $cmsClass) {
$defaultTitle = LeftAndMain::menu_title_for_class($cmsClass);
$ownerModule = i18n::get_owner_module($cmsClass);
$entities["{$cmsClass}.MENUTITLE"] = array($defaultTitle, PR_HIGH, 'Menu title', $ownerModule);
}
return $entities;
}
}
?>
Jump to Line
Something went wrong with that request. Please try again.