/**
* Change the navigation block and bar only for external users
* Force course or activity navigation and modify CSS also
* Please note that this function is only called in pages where the navigation block is present
*
* @global moodle_user $USER
* @global moodle_database $DB
* @param navigation_node $nav Current navigation object
*/
function local_ltiprovider_extend_navigation($nav) {
global $USER, $PAGE, $SESSION;
// Check capabilities for tool providers
// TODO Change this for Moodle 2.3:
// use extend_navigation_course and extend_navigation_user
if ($PAGE->course->id and $PAGE->course->id != SITEID and has_capability('local/ltiprovider:view', $PAGE->context)) {
$ltiurl = new moodle_url('/local/ltiprovider/index.php', array('courseid' => $PAGE->course->id));
$coursenode = $nav->find($PAGE->course->id, $nav::TYPE_COURSE);
$coursenode->add(get_string('pluginname', 'local_ltiprovider'), $ltiurl, $nav::TYPE_CONTAINER, null, 'ltiprovider' . $PAGE->course->id);
}
if (isset($USER) and isset($USER->auth) and $USER->auth == 'nologin' and strpos($USER->username, 'ltiprovider') === 0) {
// Force course or activity navigation
if (isset($SESSION->ltiprovider) and $SESSION->ltiprovider->forcenavigation) {
$context = $SESSION->ltiprovider->context;
$urltogo = '';
if ($context->contextlevel == CONTEXT_COURSE and $PAGE->course->id != $SESSION->ltiprovider->courseid) {
$urltogo = new moodle_url('/course/view.php', array('id' => $SESSION->ltiprovider->courseid));
} else if ($context->contextlevel == CONTEXT_MODULE and $PAGE->context->id != $context->id) {
$cm = get_coursemodule_from_id(false, $context->instanceid, 0, false, MUST_EXIST);
$urltogo = new moodle_url('/mod/' . $cm->modname . '/view.php', array('id' => $cm->id));
}
if ($urltogo) {
redirect($urltogo);
}
}
// Delete all the navigation nodes except the course one
$coursenode = $nav->find($PAGE->course->id, $nav::TYPE_COURSE);
foreach (array('myprofile', 'users', 'site', 'home', 'myhome', 'mycourses', 'courses', '1') as $nodekey) {
if ($node = $nav->get($nodekey)) {
$node->remove();
}
}
$nav->children->add($coursenode);
// Custom CSS
if (isset($SESSION->ltiprovider)) {
$PAGE->requires->css(new moodle_url('/local/ltiprovider/styles.php', array('id' => $SESSION->ltiprovider->id)));
}
}
}
public function test_find() {
$node1 = $this->node->find('demo1', navigation_node::TYPE_COURSE);
$node2 = $this->node->find('demo5', navigation_node::TYPE_COURSE);
$node3 = $this->node->find('demo5', navigation_node::TYPE_CATEGORY);
$node4 = $this->node->find('demo0', navigation_node::TYPE_COURSE);
$this->assertIsA($node1, 'navigation_node');
$this->assertIsA($node2, 'navigation_node');
$this->assertNotA($node3, 'navigation_node');
$this->assertNotA($node4, 'navigation_node');
}
public function test_find() {
$node1 = $this->node->find('demo1', navigation_node::TYPE_COURSE);
$node2 = $this->node->find('demo5', navigation_node::TYPE_COURSE);
$node3 = $this->node->find('demo5', navigation_node::TYPE_CATEGORY);
$node4 = $this->node->find('demo0', navigation_node::TYPE_COURSE);
$this->assertInstanceOf('navigation_node', $node1);
$this->assertInstanceOf('navigation_node', $node2);
$this->assertNotInstanceOf('navigation_node', $node3);
$this->assertNotInstanceOf('navigation_node', $node4);
}
/**
* Change the navigation block and bar only for external users
* Force course or activity navigation and modify CSS also
* Please note that this function is only called in pages where the navigation block is present
*
* @global moodle_user $USER
* @global moodle_database $DB
* @param navigation_node $nav Current navigation object
*/
function local_ltiprovider_extends_navigation($nav)
{
global $CFG, $USER, $PAGE, $SESSION, $ME;
// Check capabilities for tool providers
// Only for Moodle < 2.3 versions
if ($CFG->version < 2012062500 and $PAGE->course->id and $PAGE->course->id != SITEID and has_capability('local/ltiprovider:view', $PAGE->context)) {
$ltiurl = new moodle_url('/local/ltiprovider/index.php', array('courseid' => $PAGE->course->id));
$coursenode = $nav->find($PAGE->course->id, $nav::TYPE_COURSE);
$coursenode->add(get_string('pluginname', 'local_ltiprovider'), $ltiurl, $nav::TYPE_CONTAINER, null, 'ltiprovider' . $PAGE->course->id);
}
if (isset($USER) and isset($USER->auth) and strpos($USER->username, 'ltiprovider') === 0) {
// Force course or activity navigation
if (isset($SESSION->ltiprovider) and $SESSION->ltiprovider->forcenavigation) {
$context = $SESSION->ltiprovider->context;
$urltogo = '';
if ($context->contextlevel == CONTEXT_COURSE and $PAGE->course->id != $SESSION->ltiprovider->courseid) {
$urltogo = new moodle_url('/course/view.php', array('id' => $SESSION->ltiprovider->courseid));
} else {
if ($context->contextlevel == CONTEXT_MODULE and $PAGE->context->id != $context->id) {
$cm = get_coursemodule_from_id(false, $context->instanceid, 0, false, MUST_EXIST);
$urltogo = new moodle_url('/mod/' . $cm->modname . '/view.php', array('id' => $cm->id));
}
}
// Special case, user policy, we don't have to do nothing to avoid infinites loops.
if (strpos($ME, 'user/policy.php')) {
return;
}
if ($urltogo) {
redirect($urltogo);
}
}
// Delete all the navigation nodes except the course one
if ($coursenode = $nav->find($PAGE->course->id, $nav::TYPE_COURSE)) {
foreach (array('myprofile', 'users', 'site', 'home', 'myhome', 'mycourses', 'courses', '1') as $nodekey) {
if ($node = $nav->get($nodekey)) {
$node->remove();
}
}
$nav->children->add($coursenode);
}
// Custom CSS
if (isset($SESSION->ltiprovider) and !$PAGE->requires->is_head_done()) {
$PAGE->requires->css(new moodle_url('/local/ltiprovider/styles.php', array('id' => $SESSION->ltiprovider->id)));
} else {
$url = new moodle_url('/local/ltiprovider/styles.js.php', array('id' => $SESSION->ltiprovider->id, 'rand' => rand(0, 1000)));
$PAGE->requires->js($url);
}
}
}
/**
* 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 $type One of navigation_node::TYPE_*
* @return navigation_node|false
*/
public function find($key, $type)
{
if (!$this->initialised) {
$this->initialise();
}
return parent::find($key, $type);
}
/**
* 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 $type One of navigation_node::TYPE_*
* @return navigation_node|false
*/
public function find($key, $type)
{
if (!$this->initialised) {
$this->initialise();
}
if ($type == self::TYPE_ROOTNODE && array_key_exists($key, $this->rootnodes)) {
return $this->rootnodes[$key];
}
return parent::find($key, $type);
}
/**
* Adds a structured category to the navigation in the correct order/place
*
* @param stdClass $category
* @param navigation_node $parent
*/
protected function add_category(stdClass $category, navigation_node $parent, $nodetype = self::TYPE_CATEGORY)
{
if (!$this->expandtocourses && $parent->key == 'courses' || $parent->find($category->id, self::TYPE_CATEGORY)) {
return;
}
$url = new moodle_url('/course/category.php', array('id' => $category->id));
$context = context_coursecat::instance($category->id);
$categoryname = format_string($category->name, true, array('context' => $context));
$categorynode = $parent->add($categoryname, $url, $nodetype, $categoryname, $category->id);
if (empty($category->visible)) {
if (has_capability('moodle/category:viewhiddencategories', context_system::instance())) {
$categorynode->hidden = true;
} else {
$categorynode->display = false;
}
}
$this->addedcategories[$category->id] = $categorynode;
}