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<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. namespace core\navigation\output; use renderable; use renderer_base; use templatable; use custom_menu; /** * Primary navigation renderable * * This file combines primary nav, custom menu, lang menu and * usermenu into a standardized format for the frontend * * @package core * @category navigation * @copyright 2021 onwards Peter Dias * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / class primary implements renderable, templatable { /* @var \moodle_page $page the moodle page that the navigation belongs to / private $page = null; /* * primary constructor. * @param \moodle_page $page / public function __construct($page) { $this->page = $page; } /* * Combine the various menus into a standardized output. * * @param renderer_base\|null $output * @return array / public function export_for_template(?renderer_base $output = null): array { if (!$output) { $output = $this->page->get_renderer('core'); } $menudata = (object) $this->merge_primary_and_custom($this->get_primary_nav(), $this->get_custom_menu($output)); $moremenu = new \core\navigation\output\more_menu($menudata, 'navbar-nav', false); $mobileprimarynav = $this->merge_primary_and_custom($this->get_primary_nav(), $this->get_custom_menu($output), true); $languagemenu = new \core\output\language_menu($this->page); return [ 'mobileprimarynav' => $mobileprimarynav, 'moremenu' => $moremenu->export_for_template($output), 'lang' => !isloggedin() \|\| isguestuser() ? $languagemenu->export_for_template($output) : [], 'user' => $this->get_user_menu($output), ]; } /* * Get the primary nav object and standardize the output * * @param \navigation_node\|null $parent used for nested nodes, by default the primarynav node * @return array / protected function get_primary_nav($parent = null): array { if ($parent === null) { $parent = $this->page->primarynav; } $nodes = []; foreach ($parent->children as $node) { $children = $this->get_primary_nav($node); $activechildren = array_filter($children, function($child) { return !empty($child['isactive']); }); if ($node->preceedwithhr && count($nodes) && empty($nodes[count($nodes) - 1]['divider'])) { $nodes[] = ['divider' => true]; } $nodes[] = [ 'title' => $node->get_title(), 'url' => $node->action(), 'text' => $node->text, 'icon' => $node->icon, 'isactive' => $node->isactive \|\| !empty($activechildren), 'key' => $node->key, 'children' => $children, 'haschildren' => !empty($children) ? 1 : 0, ]; } return $nodes; } /* * Custom menu items reside on the same level as the original nodes. * Fetch and convert the nodes to a standardised array. * * @param renderer_base $output * @return array / protected function get_custom_menu(renderer_base $output): array { global $CFG; // Early return if a custom menu does not exists. if (empty($CFG->custommenuitems)) { return []; } $custommenuitems = $CFG->custommenuitems; $currentlang = current_language(); $custommenunodes = custom_menu::convert_text_to_menu_nodes($custommenuitems, $currentlang); $nodes = []; foreach ($custommenunodes as $node) { $nodes[] = $node->export_for_template($output); } return $nodes; } /* * When defining custom menu items, the active flag is not obvserved correctly. Therefore, the merge of the primary * and custom navigation must be handled a bit smarter. Change the "isactive" flag of the nodes (this may set by * default in the primary nav nodes but is entirely missing in the custom nav nodes). * Set the $expandedmenu argument to true when the menu for the mobile template is build. * * @param array $primary * @param array $custom * @param bool $expandedmenu * @return array / protected function merge_primary_and_custom(array $primary, array $custom, bool $expandedmenu = false): array { if (empty($custom)) { return $primary; // No custom nav, nothing to merge. } // Remember the amount of primary nodes and whether we changed the active flag in the custom menu nodes. $primarylen = count($primary); $changed = false; foreach (array_keys($custom) as $i) { if (!$changed) { if ($this->flag_active_nodes($custom[$i], $expandedmenu)) { $changed = true; } } $primary[] = $custom[$i]; } // In case some custom node is active, mark all primary nav elements as inactive. if ($changed) { for ($i = 0; $i < $primarylen; $i++) { $primary[$i]['isactive'] = false; } } return $primary; } /* * Recursive checks if any of the children is active. If that's the case this node (the parent) is active as * well. If the node has no children, check if the node itself is active. Use pass by reference for the node * object because we actively change/set the "isactive" flag inside the method and this needs to be kept at the * callers side. * Set $expandedmenu to true, if the mobile menu is done, in this case the active flag gets the node that is * actually active, while the parent hierarchy of the active node gets the flag isopen. * * @param object $node * @param bool $expandedmenu * @return bool / protected function flag_active_nodes(object $node, bool $expandedmenu = false): bool { global $FULLME; $active = false; foreach (array_keys($node->children ?? []) as $c) { if ($this->flag_active_nodes($node->children[$c], $expandedmenu)) { $active = true; } } // One of the children is active, so this node (the parent) is active as well. if ($active) { if ($expandedmenu) { $node->isopen = true; } else { $node->isactive = true; } return true; } // By default, the menu item node to check is not active. $node->isactive = false; // Check if the node url matches the called url. The node url may omit the trailing index.php, therefore check // this as well. if (empty($node->url)) { // Current menu node has no url set, so it can't be active. return false; } $nodeurl = parse_url($node->url); $current = parse_url($FULLME ?? ''); $pathmatches = false; // Exact match of the path of node and current url. $nodepath = $nodeurl['path'] ?? '/'; $currentpath = $current['path'] ?? '/'; if ($nodepath === $currentpath) { $pathmatches = true; } // The current url may be trailed by a index.php, otherwise it's the same as the node path. if (!$pathmatches && $nodepath . 'index.php' === $currentpath) { $pathmatches = true; } // No path did match, so the node can't be active. if (!$pathmatches) { return false; } // We are here because the path matches, so now look at the query string. $nodequery = $nodeurl['query'] ?? ''; $currentquery = $current['query'] ?? ''; // If the node has no query string defined, then the patch match is sufficient. if (empty($nodeurl['query'])) { $node->isactive = true; return true; } // If the node contains a query string then also the current url must match this query. if ($nodequery === $currentquery) { $node->isactive = true; } return $node->isactive; } /* * Get/Generate the user menu. * * This is leveraging the data from user_get_user_navigation_info and the logic in $OUTPUT->user_menu() * * @param renderer_base $output * @return array */ public function get_user_menu(renderer_base $output): array { global $CFG, $USER, $PAGE; require_once($CFG->dirroot . '/user/lib.php'); $usermenudata = []; $submenusdata = []; $info = user_get_user_navigation_info($USER, $PAGE); if (isset($info->unauthenticateduser)) { $info->unauthenticateduser['content'] = get_string($info->unauthenticateduser['content']); $info->unauthenticateduser['url'] = get_login_url(); return (array) $info; } // Gather all the avatar data to be displayed in the user menu. $usermenudata['avatardata'][] = [ 'content' => $info->metadata['useravatar'], 'classes' => 'current' ]; $usermenudata['userfullname'] = $info->metadata['realuserfullname'] ?? $info->metadata['userfullname']; // Logged in as someone else. if ($info->metadata['asotheruser']) { $usermenudata['avatardata'][] = [ 'content' => $info->metadata['realuseravatar'], 'classes' => 'realuser' ]; $usermenudata['metadata'][] = [ 'content' => get_string('loggedinas', 'moodle', $info->metadata['userfullname']), 'classes' => 'viewingas' ]; } // Gather all the meta data to be displayed in the user menu. $metadata = [ 'asotherrole' => [ 'value' => 'rolename', 'class' => 'role role-##GENERATEDCLASS##', ], 'userloginfail' => [ 'value' => 'userloginfail', 'class' => 'loginfailures', ], 'asmnetuser' => [ 'value' => 'mnetidprovidername', 'class' => 'mnet mnet-##GENERATEDCLASS##', ], ]; foreach ($metadata as $key => $value) { if (!empty($info->metadata[$key])) { $content = $info->metadata[$value['value']] ?? ''; $generatedclass = strtolower(preg_replace('#[ ]+#', '-', trim($content))); $customclass = str_replace('##GENERATEDCLASS##', $generatedclass, ($value['class'] ?? '')); $usermenudata['metadata'][] = [ 'content' => $content, 'classes' => $customclass ]; } } $modifiedarray = array_map(function($value) { $value->divider = $value->itemtype == 'divider'; $value->link = $value->itemtype == 'link'; if (isset($value->pix) && !empty($value->pix)) { $value->pixicon = $value->pix; unset($value->pix); } return $value; }, $info->navitems); // Include the language menu as a submenu within the user menu. $languagemenu = new \core\output\language_menu($this->page); $langmenu = $languagemenu->export_for_template($output); if (!empty($langmenu)) { $languageitems = $langmenu['items']; // If there are available languages, generate the data for the the language selector submenu. if (!empty($languageitems)) { $langsubmenuid = uniqid(); // Generate the data for the link to language selector submenu. $language = (object) [ 'itemtype' => 'submenu-link', 'submenuid' => $langsubmenuid, 'title' => get_string('language'), 'divider' => false, 'submenulink' => true, ]; // Place the link before the 'Log out' menu item which is either the last item in the menu or // second to last when 'Switch roles' is available. $menuposition = count($modifiedarray) - 1; if (has_capability('moodle/role:switchroles', $PAGE->context)) { $menuposition = count($modifiedarray) - 2; } array_splice($modifiedarray, $menuposition, 0, [$language]); // Generate the data for the language selector submenu. $submenusdata[] = (object)[ 'id' => $langsubmenuid, 'title' => get_string('languageselector'), 'items' => $languageitems, ]; } } // Add divider before the last item. $modifiedarray[count($modifiedarray) - 2]->divider = true; $usermenudata['items'] = $modifiedarray; $usermenudata['submenus'] = array_values($submenusdata); return $usermenudata; } }

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