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Developer Documentation
See Release Notes
Long Term Support Release
- Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
- Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
- PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
/lib/ -> navigationlib.php (source)
Differences Between: [Versions 310 and 401] [Versions 311 and 401] [Versions 39 and 401] [Versions 400 and 401] [Versions 401 and 402] [Versions 401 and 403]
This file contains classes used to manage the navigation structures within Moodle.
| Copyright: | 2009 Sam Hemelryk |
| License: | http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later |
| File Size: | 6099 lines (262 kb) |
| Included or required: | 0 times |
| Referenced: | 0 times |
| Includes or requires: | 0 files |
Defines 12 classes
navigation_node:: (45 methods):
__construct()
check_if_active()
has_siblings()
get_siblings()
override_active_url()
require_admin_tree()
create()
add()
add_node()
get_children_key_list()
find()
build_flat_navigation_list()
get()
remove()
has_children()
make_active()
make_inactive()
force_open()
add_class()
remove_class()
title()
__wakeup()
contains_active_node()
is_short_branch()
find_active_node()
search_for_active_node()
get_content()
get_title()
has_action()
has_internal_action()
is_hidden()
get_css_type()
find_expandable()
find_all_of_type()
trim_if_empty()
get_tabs_array()
set_parent()
hide()
action()
actionattributes()
is_action_link()
action_link_actions()
set_force_into_more_menu()
set_show_in_secondary_navigation()
add_context_locking_node()
navigation_node_collection:: (11 methods):
add()
get_key_list()
set_collectionlabel()
get_collectionlabel()
get()
find()
last()
type()
remove()
count()
getIterator()
global_navigation:: (33 methods):
__construct()
set_userid_for_parent_checks()
initialise()
load_local_plugin_navigation()
current_user_is_parent_role()
show_categories()
show_my_categories()
load_all_courses()
can_add_more_courses_to_category()
load_all_categories()
add_category()
load_course()
load_course_sections()
generate_sections_and_activities()
load_generic_course_sections()
load_section_activities()
load_stealth_activity()
load_activity()
load_for_user()
module_extends_navigation()
extend_for_user()
get_extending_users()
add_course()
get_expand_course_cache()
can_expand_course()
is_category_fully_loaded()
add_course_essentials()
add_front_page_course_essentials()
clear_cache()
set_expansion_limit()
get()
find()
load_courses_enrolled()
global_navigation_for_ajax:: (5 methods):
__construct()
initialise()
load_courses_other()
load_category()
get_expandable()
navbar:: (8 methods):
__construct()
has_items()
ignore_active()
get()
get_items()
get_course_categories()
add()
prepend()
breadcrumb_navigation_node:: (3 methods):
__construct()
is_last()
set_last()
flat_navigation_node:: (9 methods):
__construct()
set_collectionlabel()
get_collectionlabel()
is_section()
isactive()
showdivider()
set_showdivider()
get_indent()
set_indent()
flat_navigation:: (3 methods):
__construct()
initialise()
add()
settings_navigation:: (21 methods):
__construct()
initialise()
add()
prepend()
is_admin_tree_needed()
load_administration_settings()
scan_for_active_node()
get_by_path()
load_course_settings()
get_page()
load_module_settings()
load_user_settings()
extend_for_user()
generate_user_settings()
load_block_settings()
load_category_settings()
in_alternative_role()
load_front_page_settings()
load_local_plugin_settings()
clear_cache()
can_view_user_preferences()
settings_navigation_ajax:: (2 methods):
__construct()
initialise()
navigation_json:: (3 methods):
convert()
set_expandable()
convert_child()
navigation_cache:: (11 methods):
__construct()
ensure_session_cache_initialised()
__get()
__set()
set()
cached()
compare()
clear()
garbage_collection()
volatile()
destroy_volatile_caches()
Class: navigation_node - X-Ref
This class is used to represent a node in a navigation treeThis class is used to represent a node in a navigation tree within Moodle,
the tree could be one of global navigation, settings navigation, or the navbar.
Each node can be one of two types either a Leaf (default) or a branch.
When a node is first created it is created as a leaf, when/if children are added
the node then becomes a branch.
| __construct($properties) X-Ref |
| Constructs a new navigation_node param: array|string $properties Either an array of properties or a string to use |
| check_if_active($strength=URL_MATCH_EXACT) X-Ref |
| Checks if this node is the active node. This is determined by comparing the action for the node against the defined URL for the page. A match will see this node marked as active. param: int $strength One of URL_MATCH_EXACT, URL_MATCH_PARAMS, or URL_MATCH_BASE return: bool |
| has_siblings() X-Ref |
| True if this nav node has siblings in the tree. return: bool |
| get_siblings() X-Ref |
| Get a list of sibling navigation nodes at the same level as this one. return: bool|array of navigation_node |
| override_active_url(moodle_url $url, $loadadmintree = false) X-Ref |
| This sets the URL that the URL of new nodes get compared to when locating the active node. The active node is the node that matches the URL set here. By default this is either $PAGE->url or if that hasn't been set $FULLME. param: moodle_url $url The url to use for the fullmeurl. param: bool $loadadmintree use true if the URL point to administration tree |
| require_admin_tree() X-Ref |
| Use when page is linked from the admin tree, if not used navigation could not find the page using current URL because the tree is not fully loaded. |
| create($text, $action=null, $type=self::TYPE_CUSTOM,$shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| Creates a navigation node, ready to add it as a child using add_node function. (The created node needs to be added before you can use it.) param: string $text param: moodle_url|action_link $action param: int $type param: string $shorttext param: string|int $key param: pix_icon $icon return: navigation_node |
| add($text, $action=null, $type=self::TYPE_CUSTOM, $shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| Adds a navigation node as a child of this node. param: string $text param: moodle_url|action_link $action param: int $type param: string $shorttext param: string|int $key param: pix_icon $icon return: navigation_node |
| add_node(navigation_node $childnode, $beforekey=null) X-Ref |
| Adds a navigation node as a child of this one, given a $node object created using the create function. param: navigation_node $childnode Node to add param: string $beforekey return: navigation_node The added node |
| get_children_key_list() X-Ref |
| Return a list of all the keys of all the child nodes. return: array the keys. |
| find($key, $type) X-Ref |
| Searches for a node of the given type with the given key. This searches this node plus all of its children, and their children.... If you know the node you are looking for is a child of this node then please use the get method instead. param: int|string $key The key of the node we are looking for param: int $type One of navigation_node::TYPE_* return: navigation_node|false |
| build_flat_navigation_list(flat_navigation $nodes, $showdivider = false, $label = '') X-Ref |
| Walk the tree building up a list of all the flat navigation nodes. param: flat_navigation $nodes List of the found flat navigation nodes. param: boolean $showdivider Show a divider before the first node. param: string $label A label for the collection of navigation links. |
| get($key, $type=null) X-Ref |
| Get the child of this node that has the given key + (optional) type. If you are looking for a node and want to search all children + their children then please use the find method instead. param: int|string $key The key of the node we are looking for param: int $type One of navigation_node::TYPE_* return: navigation_node|false |
| remove() X-Ref |
| Removes this node. return: bool |
| has_children() X-Ref |
| Checks if this node has or could have any children return: bool Returns true if it has children or could have (by AJAX expansion) |
| make_active() X-Ref |
| Marks this node as active and forces it open. Important: If you are here because you need to mark a node active to get the navigation to do what you want have you looked at {@link navigation_node::override_active_url()}? You can use it to specify a different URL to match the active navigation node on rather than having to locate and manually mark a node active. |
| make_inactive() X-Ref |
| Marks a node as inactive and recusised back to the base of the tree doing the same to all parents. |
| force_open() X-Ref |
| Forces this node to be open and at the same time forces open all parents until the root node. Recursive. |
| add_class($class) X-Ref |
| Adds a CSS class to this node. param: string $class return: bool |
| remove_class($class) X-Ref |
| Removes a CSS class from this node. param: string $class return: bool True if the class was successfully removed. |
| title(?string $title = null) X-Ref |
| Sets the title for this node and forces Moodle to utilise it. Note that this method is named identically to the public "title" property of the class, which unfortunately confuses our Mustache renderer, because it will see the method and try and call it without any arguments (hence must be nullable) before trying to access the public property param: string|null $title return: string |
| __wakeup() X-Ref |
| Resets the page specific information on this node if it is being unserialised. |
| contains_active_node() X-Ref |
| Checks if this node or any of its children contain the active node. Recursive. return: bool |
| is_short_branch() X-Ref |
| To better balance the admin tree, we want to group all the short top branches together. This means < 8 nodes and no subtrees. return: bool |
| find_active_node() X-Ref |
| Finds the active node. Searches this nodes children plus all of the children for the active node and returns it if found. Recursive. return: navigation_node|false |
| search_for_active_node($strength = URL_MATCH_BASE) X-Ref |
| Searches all children for the best matching active node param: int $strength The url match to be made. return: navigation_node|false |
| get_content($shorttext=false) X-Ref |
| Gets the content for this node. param: bool $shorttext If true shorttext is used rather than the normal text return: string |
| get_title() X-Ref |
| Gets the title to use for this node. return: string |
| has_action() X-Ref |
| Used to easily determine if this link in the breadcrumbs has a valid action/url. return: boolean |
| has_internal_action() X-Ref |
| Used to easily determine if the action is an internal link. return: bool |
| is_hidden() X-Ref |
| Used to easily determine if this link in the breadcrumbs is hidden. return: boolean |
| get_css_type() X-Ref |
| Gets the CSS class to add to this node to describe its type return: string |
| find_expandable(array &$expandable) X-Ref |
| Finds all nodes that are expandable by AJAX param: array $expandable An array by reference to populate with expandable nodes. |
| find_all_of_type($type) X-Ref |
| Finds all nodes of a given type (recursive) param: int $type One of navigation_node::TYPE_* return: array |
| trim_if_empty() X-Ref |
| Removes this node if it is empty |
| get_tabs_array(array $inactive=array() X-Ref |
| Creates a tab representation of this nodes children that can be used with print_tabs to produce the tabs on a page. call_user_func_array('print_tabs', $node->get_tabs_array()); param: array $inactive param: bool $return return: array Array (tabs, selected, inactive, activated, return) |
| set_parent(navigation_node $parent) X-Ref |
| Sets the parent for this node and if this node is active ensures that the tree is properly adjusted as well. param: navigation_node $parent |
| hide(array $typestohide = null) X-Ref |
| Hides the node and any children it has. param: array $typestohide Optional. An array of node types that should be hidden. |
| action() X-Ref |
| Get the action url for this navigation node. Called from templates. |
| actionattributes() X-Ref |
| Return an array consisting of the additional attributes for the action url. return: array Formatted array to parse in a template |
| is_action_link() X-Ref |
| Check whether the node's action is of type action_link. return: bool |
| action_link_actions() X-Ref |
| Return an array consisting of the actions for the action link. return: array Formatted array to parse in a template |
| set_force_into_more_menu(bool $forceintomoremenu = false) X-Ref |
| Sets whether the node and its children should be added into a "more" menu whenever possible. param: bool $forceintomoremenu |
| set_show_in_secondary_navigation(bool $show = true) X-Ref |
| Sets whether the node and its children should be displayed in the "secondary" navigation when applicable. param: bool $show |
| add_context_locking_node(\navigation_node $node, \context $context) X-Ref |
| Add the menu item to handle locking and unlocking of a conext. param: \navigation_node $node Node to add param: \context $context The context to be locked |
Class: navigation_node_collection - X-Ref
Navigation node collectionThis class is responsible for managing a collection of navigation nodes.
It is required because a node's unique identifier is a combination of both its
key and its type.
Originally an array was used with a string key that was a combination of the two
however it was decided that a better solution would be to use a class that
implements the standard IteratorAggregate interface.
| add(navigation_node $node, $beforekey=null) X-Ref |
| Adds a navigation node to the collection param: navigation_node $node Node to add param: string $beforekey If specified, adds before a node with this key, return: navigation_node Added node |
| get_key_list() X-Ref |
| Return a list of all the keys of all the nodes. return: array the keys. |
| set_collectionlabel($label) X-Ref |
| Set a label for this collection. param: string $label |
| get_collectionlabel() X-Ref |
| Return a label for this collection. return: string |
| get($key, $type=null) X-Ref |
| Fetches a node from this collection. param: string|int $key The key of the node we want to find. param: int $type One of navigation_node::TYPE_*. return: navigation_node|null |
| find($key, $type=null) X-Ref |
| Searches for a node with matching key and type. This function searches both the nodes in this collection and all of the nodes in each collection belonging to the nodes in this collection. Recursive. param: string|int $key The key of the node we want to find. param: int $type One of navigation_node::TYPE_*. return: navigation_node|null |
| last() X-Ref |
| Fetches the last node that was added to this collection return: navigation_node |
| type($type) X-Ref |
| Fetches all nodes of a given type from this collection param: string|int $type node type being searched for. return: array ordered collection |
| remove($key, $type=null) X-Ref |
| Removes the node with the given key and type from the collection param: string|int $key The key of the node we want to find. param: int $type return: bool |
| count() X-Ref |
| Gets the number of nodes in this collection This option uses an internal count rather than counting the actual options to avoid a performance hit through the count function. return: int |
| getIterator() X-Ref |
| Gets an array iterator for the collection. This is required by the IteratorAggregator interface and is used by routines such as the foreach loop. return: ArrayIterator |
Class: global_navigation - X-Ref
The global navigation class used for... the global navigationThis class is used by PAGE to store the global navigation for the site
and is then used by the settings nav and navbar to save on processing and DB calls
See
{@link lib/pagelib.php} {@link moodle_page::initialise_theme_and_output()}
{@link lib/ajax/getnavbranch.php} Called by ajax
| __construct(moodle_page $page) X-Ref |
| Constructs a new global navigation param: moodle_page $page The page this navigation object belongs to |
| set_userid_for_parent_checks($userid) X-Ref |
| Mutator to set userid to allow parent to see child's profile page navigation. See MDL-25805 for initial issue. Linked to it is an issue explaining why this is a REALLY UGLY HACK thats not for you to use! param: int $userid userid of profile page that parent wants to navigate around. |
| initialise() X-Ref |
| Initialises the navigation object. This causes the navigation object to look at the current state of the page that it is associated with and then load the appropriate content. This should only occur the first time that the navigation structure is utilised which will normally be either when the navbar is called to be displayed or when a block makes use of it. return: bool |
| load_local_plugin_navigation() X-Ref |
| This function gives local plugins an opportunity to modify navigation. |
| current_user_is_parent_role() X-Ref |
| Returns true if the current user is a parent of the user being currently viewed. If the current user is not viewing another user, or if the current user does not hold any parent roles over the other user being viewed this function returns false. In order to set the user for whom we are checking against you must call {@link set_userid_for_parent_checks()} return: bool |
| show_categories($ismycourse = false) X-Ref |
| Returns true if courses should be shown within categories on the navigation. param: bool $ismycourse Set to true if you are calculating this for a course. return: bool |
| show_my_categories() X-Ref |
| Returns true if we should show categories in the My Courses branch. return: bool |
| load_all_courses($categoryids = null) X-Ref |
| Loads the courses in Moodle into the navigation. param: string|array $categoryids An array containing categories to load courses return: array An array of navigation_nodes one for each course |
| can_add_more_courses_to_category($category) X-Ref |
| Returns true if more courses can be added to the provided category. param: int|navigation_node|stdClass $category return: bool |
| load_all_categories($categoryid = self::LOAD_ROOT_CATEGORIES, $showbasecategories = false) X-Ref |
| Loads all categories (top level or if an id is specified for that category) param: int $categoryid The category id to load or null/0 to load all base level categories param: bool $showbasecategories If set to true all base level categories will be loaded as well return: navigation_node|void returns a navigation node if a category has been loaded. |
| add_category(stdClass $category, navigation_node $parent, $nodetype = self::TYPE_CATEGORY) X-Ref |
| Adds a structured category to the navigation in the correct order/place param: stdClass $category category to be added in navigation. param: navigation_node $parent parent navigation node param: int $nodetype type of node, if category is under MyHome then it's TYPE_MY_CATEGORY return: void. |
| load_course(stdClass $course) X-Ref |
| Loads the given course into the navigation param: stdClass $course return: navigation_node |
| load_course_sections(stdClass $course, navigation_node $coursenode, $sectionnum = null, $cm = null) X-Ref |
| Loads all of the courses section into the navigation. This function calls method from current course format, see core_courseformat\base::extend_course_navigation() If course module ($cm) is specified but course format failed to create the node, the activity node is created anyway. By default course formats call the method global_navigation::load_generic_course_sections() param: stdClass $course Database record for the course param: navigation_node $coursenode The course node within the navigation param: null|int $sectionnum If specified load the contents of section with this relative number param: null|cm_info $cm If specified make sure that activity node is created (either |
| generate_sections_and_activities(stdClass $course) X-Ref |
| Generates an array of sections and an array of activities for the given course. This method uses the cache to improve performance and avoid the get_fast_modinfo call param: stdClass $course return: array Array($sections, $activities) |
| load_generic_course_sections(stdClass $course, navigation_node $coursenode) X-Ref |
| Generically loads the course sections into the course's navigation. param: stdClass $course param: navigation_node $coursenode return: array An array of course section nodes |
| load_section_activities(navigation_node $sectionnode, $sectionnumber, array $activities, $course = null) X-Ref |
| Loads all of the activities for a section into the navigation structure. param: navigation_node $sectionnode param: int $sectionnumber param: array $activities An array of activites as returned by {@link global_navigation::generate_sections_and_activities()} param: stdClass $course The course object the section and activities relate to. return: array Array of activity nodes |
| load_stealth_activity(navigation_node $coursenode, $modinfo) X-Ref |
| Loads a stealth module from unavailable section param: navigation_node $coursenode param: stdClass $modinfo return: navigation_node or null if not accessible |
| load_activity($cm, stdClass $course, navigation_node $activity) X-Ref |
| Loads the navigation structure for the given activity into the activities node. This method utilises a callback within the modules lib.php file to load the content specific to activity given. The callback is a method: {modulename}_extend_navigation() Examples: * {@link forum_extend_navigation()} * {@link workshop_extend_navigation()} param: cm_info|stdClass $cm param: stdClass $course param: navigation_node $activity return: bool |
| load_for_user($user=null, $forceforcontext=false) X-Ref |
| Loads user specific information into the navigation in the appropriate place. If no user is provided the current user is assumed. param: stdClass $user param: bool $forceforcontext probably force something to be loaded somewhere (ask SamH if not sure what this means) return: bool |
| module_extends_navigation($modname) X-Ref |
| This method simply checks to see if a given module can extend the navigation. param: string $modname return: bool |
| extend_for_user($user) X-Ref |
| Extends the navigation for the given user. param: stdClass $user A user from the database |
| get_extending_users() X-Ref |
| Returns all of the users the navigation is being extended for return: array An array of extending users. |
| add_course(stdClass $course, $forcegeneric = false, $coursetype = self::COURSE_OTHER) X-Ref |
| Adds the given course to the navigation structure. param: stdClass $course param: bool $forcegeneric param: bool $ismycourse return: navigation_node |
| get_expand_course_cache() X-Ref |
| Returns a cache instance to use for the expand course cache. return: cache_session |
| can_expand_course($course) X-Ref |
| Checks if a user can expand a course in the navigation. We use a cache here because in order to be accurate we need to call can_access_course which is a costly function. Because this functionality is basic + non-essential and because we lack good event triggering this cache permits stale data. In the situation the user is granted access to a course after we've initialised this session cache the cache will be stale. It is brought up to date in only one of two ways. 1. The user logs out and in again. 2. The user browses to the course they've just being given access to. Really all this controls is whether the node is shown as expandable or not. It is uber un-important. param: stdClass $course return: bool |
| is_category_fully_loaded($categoryid) X-Ref |
| Returns true if the category has already been loaded as have any child categories param: int $categoryid return: bool |
| add_course_essentials($coursenode, stdClass $course) X-Ref |
| Adds essential course nodes to the navigation for the given course. This method adds nodes such as reports, blogs and participants param: navigation_node $coursenode param: stdClass $course return: bool returns true on successful addition of a node. |
| add_front_page_course_essentials(navigation_node $coursenode, stdClass $course) X-Ref |
| This generates the structure of the course that won't be generated when the modules and sections are added. Things such as the reports branch, the participants branch, blogs... get added to the course node by this method. param: navigation_node $coursenode param: stdClass $course return: bool True for successfull generation |
| clear_cache() X-Ref |
| Clears the navigation cache |
| set_expansion_limit($type) X-Ref |
| Sets an expansion limit for the navigation The expansion limit is used to prevent the display of content that has a type greater than the provided $type. Can be used to ensure things such as activities or activity content don't get shown on the navigation. They are still generated in order to ensure the navbar still makes sense. param: int $type One of navigation_node::TYPE_* return: bool true when complete. |
| get($key, $type = null) X-Ref |
| Attempts to get the navigation with the given key from this nodes children. This function only looks at this nodes children, it does NOT look recursivily. If the node can't be found then false is returned. If you need to search recursivily then use the {@link global_navigation::find()} method. Note: If you are trying to set the active node {@link navigation_node::override_active_url()} may be of more use to you. param: string|int $key The key of the node you wish to receive. param: int $type One of navigation_node::TYPE_* return: navigation_node|false |
| find($key, $type) X-Ref |
| Searches this nodes children and their children to find a navigation node with the matching key and type. This method is recursive and searches children so until either a node is found or there are no more nodes to search. If you know that the node being searched for is a child of this node then use the {@link global_navigation::get()} method instead. Note: If you are trying to set the active node {@link navigation_node::override_active_url()} may be of more use to you. param: string|int $key The key of the node you wish to receive. param: int $type One of navigation_node::TYPE_* return: navigation_node|false |
| load_courses_enrolled() X-Ref |
| They've expanded the 'my courses' branch. |
Class: global_navigation_for_ajax - X-Ref
The global navigation class used especially for AJAX requests.The primary methods that are used in the global navigation class have been overriden
to ensure that only the relevant branch is generated at the root of the tree.
This can be done because AJAX is only used when the backwards structure for the
requested branch exists.
This has been done only because it shortens the amounts of information that is generated
which of course will speed up the response time.. because no one likes laggy AJAX.
| __construct($page, $branchtype, $id) X-Ref |
| Constructs the navigation for use in an AJAX request param: moodle_page $page moodle_page object param: int $branchtype param: int $id |
| initialise() X-Ref |
| Initialise the navigation given the type and id for the branch to expand. return: array An array of the expandable nodes |
| load_courses_other() X-Ref |
| They've expanded the general 'courses' branch. |
| load_category($categoryid, $nodetype = self::TYPE_CATEGORY) X-Ref |
| Loads a single category into the AJAX navigation. This function is special in that it doesn't concern itself with the parent of the requested category or its siblings. This is because with the AJAX navigation we know exactly what is wanted and only need to request that. param: int $categoryid id of category to load in navigation. param: int $nodetype type of node, if category is under MyHome then it's TYPE_MY_CATEGORY return: void. |
| get_expandable() X-Ref |
| Returns an array of expandable nodes return: array |
Navbar class
This class is used to manage the navbar, which is initialised from the navigation
object held by PAGE
This class is used to manage the navbar, which is initialised from the navigation
object held by PAGE
| __construct(moodle_page $page) X-Ref |
| The almighty constructor param: moodle_page $page |
| has_items() X-Ref |
| Quick check to see if the navbar will have items in. return: bool Returns true if the navbar will have items, false otherwise |
| ignore_active($setting=true) X-Ref |
| Turn on/off ignore active param: bool $setting |
| get($key, $type = null) X-Ref |
| Gets a navigation node param: string|int $key for referencing the navbar nodes param: int $type breadcrumb_navigation_node::TYPE_* return: breadcrumb_navigation_node|bool |
| get_items() X-Ref |
| Returns an array of breadcrumb_navigation_nodes that make up the navbar. return: array |
| get_course_categories() X-Ref |
| Get the list of categories leading to this course. This function is used by {@link navbar::get_items()} to add back the "courses" node and category chain leading to the current course. Note that this is only ever called for the current course, so we don't need to bother taking in any parameters. return: array |
| add($text, $action=null, $type=self::TYPE_CUSTOM, $shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| Add a new breadcrumb_navigation_node to the navbar, overrides parent::add This function overrides {@link breadcrumb_navigation_node::add()} so that we can change the way nodes get added to allow us to simply call add and have the node added to the end of the navbar param: string $text param: string|moodle_url|action_link $action An action to associate with this node. param: int $type One of navigation_node::TYPE_* param: string $shorttext param: string|int $key A key to identify this node with. Key + type is unique to a parent. param: pix_icon $icon An optional icon to use for this node. return: navigation_node |
| prepend($text, $action=null, $type=self::TYPE_CUSTOM, $shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| Prepends a new navigation_node to the start of the navbar param: string $text param: string|moodle_url|action_link $action An action to associate with this node. param: int $type One of navigation_node::TYPE_* param: string $shorttext param: string|int $key A key to identify this node with. Key + type is unique to a parent. param: pix_icon $icon An optional icon to use for this node. return: navigation_node |
Class: breadcrumb_navigation_node - X-Ref
Subclass of navigation_node allowing different rendering for the breadcrumbsin particular adding extra metadata for search engine robots to leverage.
Class: flat_navigation_node - X-Ref
Subclass of navigation_node allowing different rendering for the flat navigationin particular allowing dividers and indents.
| __construct($navnode, $indent) X-Ref |
| A proxy constructor param: mixed $navnode A navigation_node or an array |
| set_collectionlabel($label) X-Ref |
| Setter, a label is required for a flat navigation node that shows a divider. param: string $label |
| get_collectionlabel() X-Ref |
| Getter, get the label for this flat_navigation node, or it's parent if it doesn't have one. return: string |
| is_section() X-Ref |
| Does this node represent a course section link. return: boolean |
| isactive() X-Ref |
| In flat navigation - sections are active if we are looking at activities in the section. return: boolean |
| showdivider() X-Ref |
| Getter for "showdivider" return: boolean |
| set_showdivider($val, $label = '') X-Ref |
| Setter for "showdivider" param: $val boolean param: $label string Label for the group of nodes |
| get_indent() X-Ref |
| Getter for "indent" return: boolean |
| set_indent($val) X-Ref |
| Setter for "indent" param: $val boolean |
Class: flat_navigation - X-Ref
Class used to generate a collection of navigation nodes most closely relatedto the current page.
| __construct(moodle_page &$page) X-Ref |
| Constructor. param: moodle_page $page |
| initialise() X-Ref |
| Build the list of navigation nodes based on the current navigation and settings trees. |
| add(navigation_node $node, $beforekey=null) X-Ref |
| Override the parent so we can set a label for this collection if it has not been set yet. param: navigation_node $node Node to add param: string $beforekey If specified, adds before a node with this key, return: navigation_node Added node |
Class: settings_navigation - X-Ref
Class used to manage the settings option for the current pageThis class is used to manage the settings options in a tree format (recursively)
and was created initially for use with the settings blocks.
| __construct(moodle_page &$page) X-Ref |
| Sets up the object with basic settings and preparse it for use param: moodle_page $page |
| initialise() X-Ref |
| Initialise the settings navigation based on the current context This function initialises the settings navigation tree for a given context by calling supporting functions to generate major parts of the tree. |
| add($text, $url=null, $type=null, $shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| Override the parent function so that we can add preceeding hr's and set a root node class against all first level element It does this by first calling the parent's add method {@link navigation_node::add()} and then proceeds to use the key to set class and hr param: string $text text to be used for the link. param: string|moodle_url $url url for the new node param: int $type the type of node navigation_node::TYPE_* param: string $shorttext param: string|int $key a key to access the node by. param: pix_icon $icon An icon that appears next to the node. return: navigation_node with the new node added to it. |
| prepend($text, $url=null, $type=null, $shorttext=null, $key=null, pix_icon $icon=null) X-Ref |
| This function allows the user to add something to the start of the settings navigation, which means it will be at the top of the settings navigation block param: string $text text to be used for the link. param: string|moodle_url $url url for the new node param: int $type the type of node navigation_node::TYPE_* param: string $shorttext param: string|int $key a key to access the node by. param: pix_icon $icon An icon that appears next to the node. return: navigation_node $node with the new node added to it. |
| is_admin_tree_needed() X-Ref |
| Does this page require loading of full admin tree or is it enough rely on AJAX? return: bool |
| load_administration_settings(navigation_node $referencebranch=null, part_of_admin_tree $adminbranch=null) X-Ref |
| Load the site administration tree This function loads the site administration tree by using the lib/adminlib library functions param: navigation_node $referencebranch A reference to a branch in the settings param: part_of_admin_tree $adminbranch The branch to add, if null generate the admin return: mixed A key to access the admin tree by |
| scan_for_active_node(navigation_node $node) X-Ref |
| This function recursivily scans nodes until it finds the active node or there are no more nodes. param: navigation_node $node |
| get_by_path(array $path) X-Ref |
| Gets a navigation node given an array of keys that represent the path to the desired node. param: array $path return: navigation_node|false |
| load_course_settings($forceopen = false) X-Ref |
| This function loads the course settings that are available for the user param: bool $forceopen If set to true the course node will be forced open return: navigation_node|false |
| get_page() X-Ref |
| Get the moodle_page object associated to the current settings navigation. return: moodle_page |
| load_module_settings() X-Ref |
| This function calls the module function to inject module settings into the settings navigation tree. This only gets called if there is a corrosponding function in the modules lib file. For examples mod/forum/lib.php {@link forum_extend_settings_navigation()} return: navigation_node|false |
| load_user_settings($courseid = SITEID) X-Ref |
| Loads the user settings block of the settings nav This function is simply works out the userid and whether we need to load just the current users profile settings, or the current user and the user the current user is viewing. This function has some very ugly code to work out the user, if anyone has any bright ideas please feel free to intervene. param: int $courseid The course id of the current course return: navigation_node|false |
| extend_for_user($userid) X-Ref |
| Extends the settings navigation for the given user. Note: This method gets called automatically if you call $PAGE->navigation->extend_for_user($userid) param: int $userid |
| generate_user_settings($courseid, $userid, $gstitle='usercurrentsettings') X-Ref |
| This function gets called by {@link settings_navigation::load_user_settings()} and actually works out what can be shown/done param: int $courseid The current course' id param: int $userid The user id to load for param: string $gstitle The string to pass to get_string for the branch title return: navigation_node|false |
| load_block_settings() X-Ref |
| Loads block specific settings in the navigation return: navigation_node |
| load_category_settings() X-Ref |
| Loads category specific settings in the navigation return: navigation_node |
| in_alternative_role() X-Ref |
| Determine whether the user is assuming another role This function checks to see if the user is assuming another role by means of role switching. In doing this we compare each RSW key (context path) against the current context path. This ensures that we can provide the switching options against both the course and any page shown under the course. return: bool|int The role(int) if the user is in another role, false otherwise |
| load_front_page_settings($forceopen = false) X-Ref |
| This function loads all of the front page settings into the settings navigation. This function is called when the user is on the front page, or $COURSE==$SITE param: bool $forceopen (optional) return: navigation_node |
| load_local_plugin_settings() X-Ref |
| This function gives local plugins an opportunity to modify the settings navigation. |
| clear_cache() X-Ref |
| This function marks the cache as volatile so it is cleared during shutdown |
| can_view_user_preferences($userid) X-Ref |
| Checks to see if there are child nodes available in the specific user's preference node. If so, then they have the appropriate permissions view this user's preferences. param: int $userid The user's ID. return: bool True if child nodes exist to view, otherwise false. |
Class: settings_navigation_ajax - X-Ref
Class used to populate site admin navigation for ajax.| __construct(moodle_page &$page) X-Ref |
| Constructs the navigation for use in an AJAX request param: moodle_page $page |
| initialise() X-Ref |
| Initialise the site admin navigation. return: array An array of the expandable nodes |
Class: navigation_json - X-Ref
Simple class used to output a navigation branch in XML| convert($branch) X-Ref |
| Turns a branch and all of its children into XML param: navigation_node $branch return: string XML string |
| set_expandable($expandable) X-Ref |
| Set the expandable items in the array so that we have enough information to attach AJAX events param: array $expandable |
| convert_child($child, $depth=1) X-Ref |
| Recusively converts a child node and its children to XML for output param: navigation_node $child The child to convert param: int $depth Pointlessly used to track the depth of the XML structure return: string JSON |
Class: navigation_cache - X-Ref
The cache class used by global navigation and settings navigation.It is basically an easy access point to session with a bit of smarts to make
sure that the information that is cached is valid still.
Example use:
<code php>
if (!$cache->viewdiscussion()) {
// Code to do stuff and produce cachable content
$cache->viewdiscussion = has_capability('mod/forum:viewdiscussion', $coursecontext);
}
$content = $cache->viewdiscussion;
</code>
| __construct($area, $timeout=1800) X-Ref |
| Contructor for the cache. Requires two arguments param: string $area The string to use to segregate this particular cache param: int $timeout The number of seconds to time the information out after |
| ensure_session_cache_initialised() X-Ref |
| Used to set up the cache within the SESSION. This is called for each access and ensure that we don't put anything into the session before it is required. |
| __get($key) X-Ref |
| Magic Method to retrieve something by simply calling using = cache->key param: mixed $key The identifier for the information you want out again return: void|mixed Either void or what ever was put in |
| __set($key, $information) X-Ref |
| Magic method that simply uses {@link set();} to store something in the cache param: string|int $key param: mixed $information |
| set($key, $information) X-Ref |
| Sets some information against the cache (session) for later retrieval param: string|int $key param: mixed $information |
| cached($key) X-Ref |
| Check the existence of the identifier in the cache param: string|int $key return: bool |
| compare($key, $value, $serialise = true) X-Ref |
| Compare something to it's equivilant in the cache param: string $key param: mixed $value param: bool $serialise Whether to serialise the value before comparison return: bool If the value is the same false if it is not set or doesn't match |
| clear() X-Ref |
| Wipes the entire cache, good to force regeneration |
| garbage_collection() X-Ref |
| Checks all cache entries and removes any that have expired, good ole cleanup |
| volatile($setting = true) X-Ref |
| Marks the cache as being volatile (likely to change) Any caches marked as volatile will be destroyed at the on shutdown by {@link navigation_node::destroy_volatile_caches()} which is registered as a shutdown function if any caches are marked as volatile. param: bool $setting True to destroy the cache false not too |
| destroy_volatile_caches() X-Ref |
| Destroys all caches marked as volatile This function is static and works in conjunction with the static volatilecaches property of navigation cache. Because this function is static it manually resets the cached areas back to an empty array. |
