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45772748d3
ENHANCEMENT Filtering out TestOnly classes in CMSMenu::get_cms_classes() git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/cms/trunk@85281 467b73ca-7a2a-4603-9d3b-597d59a354a9
316 lines
10 KiB
PHP
316 lines
10 KiB
PHP
<?php
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/**
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* The object manages the main CMS menu.
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* See {@link LeftAndMain::init()} for example usage.
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*
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* @package cms
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* @subpackage content
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*/
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class CMSMenu extends Object implements IteratorAggregate, i18nEntityProvider
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{
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/**
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* An array of changes to be made to the menu items, in the order that the changes should be
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* applied. Each item is a map in one of the two forms:
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* - array('type' => 'add', 'item' => new CMSMenuItem(...) )
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* - array('type' => 'remove', 'code' => 'codename' )
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*/
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protected static $menu_item_changes = array();
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/**
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* Set to true if clear_menu() is called, to indicate that the default menu shouldn't be
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* included
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*/
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protected static $menu_is_cleared = false;
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/**
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* Generate CMS main menu items by collecting valid
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* subclasses of {@link LeftAndMain}
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*/
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public static function populate_menu() {
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self::$menu_is_cleared = false;
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}
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/**
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* Add Director rules for all of the CMS controllers.
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*/
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public static function add_director_rules() {
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array_map(array('self','add_director_rule_for_controller'), self::get_cms_classes());
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}
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/**
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* Add a LeftAndMain controller to the CMS menu.
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*
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* @param string $controllerClass The class name of the controller
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* @return The result of the operation
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* @todo A director rule is added when a controller link is added, but it won't be removed
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* when the item is removed. Functionality needed in {@link Director}.
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*/
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public static function add_controller($controllerClass) {
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if($menuItem = self::menuitem_for_controller($controllerClass)) {
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self::add_menu_item_obj($controllerClass, $menuItem);
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}
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}
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/**
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* Return a CMSMenuItem to add the given controller to the CMSMenu
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*/
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protected static function menuitem_for_controller($controllerClass) {
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$urlBase = Object::get_static($controllerClass, 'url_base');
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$urlSegment = Object::get_static($controllerClass, 'url_segment');
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$menuPriority = Object::get_static($controllerClass, 'menu_priority');
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// Don't add menu items defined the old way
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if($urlSegment === null && $controllerClass != "CMSMain") return;
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$link = Controller::join_links($urlBase, $urlSegment) . '/';
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// doesn't work if called outside of a controller context (e.g. in _config.php)
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// as the locale won't be detected properly. Use {@link LeftAndMain->MainMenu()} to update
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// titles for existing menu entries
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$defaultTitle = LeftAndMain::menu_title_for_class($controllerClass);
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$menuTitle = _t("{$controllerClass}.MENUTITLE", $defaultTitle);
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return new CMSMenuItem($menuTitle, $link, $controllerClass, $menuPriority);
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}
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/**
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* Add the appropriate Director rules for the given controller.
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*/
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protected static function add_director_rule_for_controller($controllerClass) {
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$urlBase = Object::get_static($controllerClass, 'url_base');
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$urlSegment = Object::get_static($controllerClass, 'url_segment');
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$urlRule = Object::get_static($controllerClass, 'url_rule');
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$urlPriority = Object::get_static($controllerClass, 'url_priority');
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if($urlSegment || $controllerClass == "CMSMain") {
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$link = Controller::join_links($urlBase, $urlSegment) . '/';
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// Make director rule
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if($urlRule[0] == '/') $urlRule = substr($urlRule,1);
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$rule = $link . '/' . $urlRule; // the / will combine with the / on the end of $link to make a //
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Director::addRules($urlPriority, array(
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$rule => $controllerClass
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));
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}
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}
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/**
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* Add an arbitrary URL to the CMS menu.
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*
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* @param string $code A unique identifier (used to create a CSS ID and as it's key in {@link $menu_items}
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* @param string $menuTitle The link's title in the CMS menu
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* @param string $url The url of the link
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* @param integer $priority The menu priority (sorting order) of the menu item. Higher priorities will be further left.
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* @return boolean The result of the operation.
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*/
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public static function add_link($code, $menuTitle, $url, $priority = -1) {
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return self::add_menu_item($code, $menuTitle, $url, null, $priority);
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}
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/**
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* Add a navigation item to the main administration menu showing in the top bar.
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*
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* uses {@link CMSMenu::$menu_items}
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*
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* @param string $code Unique identifier for this menu item (e.g. used by {@link replace_menu_item()} and
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* {@link remove_menu_item}. Also used as a CSS-class for icon customization.
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* @param string $menuTitle Localized title showing in the menu bar
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* @param string $url A relative URL that will be linked in the menu bar.
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* @param string $controllerClass The controller class for this menu, used to check permisssions.
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* If blank, it's assumed that this is public, and always shown to users who
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* have the rights to access some other part of the admin area.
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* @return boolean Success
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*/
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public static function add_menu_item($code, $menuTitle, $url, $controllerClass = null, $priority = -1) {
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// If a class is defined, then force the use of that as a code. This helps prevent menu item duplication
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if($controllerClass) $code = $controllerClass;
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return self::replace_menu_item($code, $menuTitle, $url, $controllerClass, $priority);
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}
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/**
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* Get a single menu item by its code value.
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*
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* @param string $code
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* @return array
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*/
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public static function get_menu_item($code) {
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$menuItems = self::get_menu_items();
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return (isset($menuItems[$code])) ? $menuItems[$code] : false;
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}
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/**
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* Get all menu entries.
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*
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* @return array
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*/
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public static function get_menu_items() {
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$menuItems = array();
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// Set up default menu items
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if(!self::$menu_is_cleared) {
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$cmsClasses = self::get_cms_classes();
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foreach($cmsClasses as $cmsClass) {
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$menuItem = self::menuitem_for_controller($cmsClass);
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if($menuItem) $menuItems[$cmsClass] = $menuItem;
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}
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}
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// Apply changes
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foreach(self::$menu_item_changes as $change) {
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switch($change['type']) {
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case 'add':
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$menuItems[$change['code']] = $change['item'];
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break;
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case 'remove':
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unset($menuItems[$change['code']]);
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break;
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default:
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user_error("Bad menu item change type {$change[type]}", E_USER_WARNING);
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}
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}
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// Sort menu items according to priority
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$menuPriority = array();
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$i = 0;
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foreach($menuItems as $key => $menuItem) {
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$i++;
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// This funny litle formula ensures that the first item added with the same priority will be left-most.
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$menuPriority[$key] = $menuItem->priority*100 - $i;
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}
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array_multisort($menuPriority, SORT_DESC, $menuItems);
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return $menuItems;
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}
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/**
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* Get all menu items that the passed member can view.
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* Defaults to {@link Member::currentUser()}.
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*
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* @param Member $member
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* @return array
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*/
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public static function get_viewable_menu_items($member = null) {
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if(!$member && $member !== FALSE) {
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$member = Member::currentUser();
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}
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$viewableMenuItems = array();
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$allMenuItems = self::get_menu_items();
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if($allMenuItems) foreach($allMenuItems as $code => $menuItem) {
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// exclude all items which have a controller to perform permission
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// checks on
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if($menuItem->controller && !singleton($menuItem->controller)->canView($member)) continue;
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$viewableMenuItems[$code] = $menuItem;
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}
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return $viewableMenuItems;
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}
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/**
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* Removes an existing item from the menu.
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*
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* @param string $code Unique identifier for this menu item
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*/
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public static function remove_menu_item($code) {
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self::$menu_item_changes[] = array('type' => 'remove', 'code' => $code);
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}
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/**
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* Clears the entire menu
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*/
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public static function clear_menu() {
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self::$menu_item_changes = array();
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self::$menu_is_cleared = true;
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}
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/**
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* Replace a navigation item to the main administration menu showing in the top bar.
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*
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* @param string $code Unique identifier for this menu item (e.g. used by {@link replace_menu_item()} and
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* {@link remove_menu_item}. Also used as a CSS-class for icon customization.
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* @param string $menuTitle Localized title showing in the menu bar
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* @param string $url A relative URL that will be linked in the menu bar.
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* Make sure to add a matching route via {@link Director::addRules()} to this url.
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* @param string $controllerClass The controller class for this menu, used to check permisssions.
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* If blank, it's assumed that this is public, and always shown to users who
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* have the rights to access some other part of the admin area.
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* @return boolean Success
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*/
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public static function replace_menu_item($code, $menuTitle, $url, $controllerClass = null, $priority = -1) {
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self::$menu_item_changes[] = array(
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'type' => 'add',
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'code' => $code,
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'item' => new CMSMenuItem($menuTitle, $url, $controllerClass, $priority),
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);
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}
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/**
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* Add a previously built menuitem object to the menu
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*/
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protected static function add_menu_item_obj($code, $cmsMenuItem) {
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self::$menu_item_changes[] = array(
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'type' => 'add',
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'code' => $code,
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'item' => $cmsMenuItem,
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);
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}
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/**
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* A utility funciton to retrieve subclasses of a given class that
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* are instantiable (ie, not abstract) and have a valid menu title.
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*
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* @todo A variation of this function could probably be moved to {@link ClassInfo}
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* @param string $root The root class to begin finding subclasses
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* @param boolean $recursive Look for subclasses recursively?
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* @return array Valid, unique subclasses
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*/
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public static function get_cms_classes($root = 'LeftAndMain', $recursive = true) {
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$subClasses = array_values(ClassInfo::subclassesFor($root));
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foreach($subClasses as $className) {
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if($recursive && $className != $root) {
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$subClasses = array_merge($subClasses, array_values(ClassInfo::subclassesFor($className)));
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}
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}
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$subClasses = array_unique($subClasses);
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foreach($subClasses as $key => $className) {
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// Remove abstract classes and LeftAndMain
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$classReflection = new ReflectionClass($className);
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if(
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!$classReflection->isInstantiable()
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|| 'LeftAndMain' == $className
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|| ClassInfo::classImplements($className, 'TestOnly')
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) {
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unset($subClasses[$key]);
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}
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}
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return $subClasses;
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}
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/**
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* IteratorAggregate Interface Method. Iterates over the menu items.
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*/
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function getIterator() {
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return new ArrayIterator(self::get_menu_items());
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}
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/**
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* Provide menu titles to the i18n entity provider
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*/
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function provideI18nEntities() {
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$cmsClasses = self::get_cms_classes();
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$entities = array();
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foreach($cmsClasses as $cmsClass) {
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$defaultTitle = LeftAndMain::menu_title_for_class($cmsClass);
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$ownerModule = i18n::get_owner_module($cmsClass);
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$entities["{$cmsClass}.MENUTITLE"] = array($defaultTitle, PR_HIGH, 'Menu title', $ownerModule);
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}
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return $entities;
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}
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}
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?>
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