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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Contains the navigation renderable for user data exports.
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*
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* @package core_privacy
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* @copyright 2018 Adrian Greeve
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace core_privacy\output;
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defined('MOODLE_INTERNAL') || die();
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use renderable;
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use renderer_base;
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use templatable;
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/**
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* Class containing the navigation renderable
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*
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* @copyright 2018 Adrian Greeve
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class exported_navigation_page implements renderable, templatable {
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/** @var array $tree Full tree in multidimensional form. */
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protected $tree;
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/** @var boolean $firstelement This is used to create unique classes for the first elements in the navigation tree. */
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protected $firstelement = true;
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/**
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* Constructor
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*
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* @param \stdClass $tree Full tree to create navigation out of.
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*/
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public function __construct(\stdClass $tree) {
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$this->tree = $tree;
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}
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/**
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* Creates the navigation list html. Why this and not a template? My attempts at trying to get a recursive template
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* working failed.
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*
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* @param \stdClass $tree Full tree to create navigation out of.
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* @return string navigation html.
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*/
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protected function create_navigation(\stdClass $tree) {
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if ($this->firstelement) {
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$html = \html_writer::start_tag('ul', ['class' => 'treeview parent block_tree list', 'id' => 'my-tree']);
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$this->firstelement = false;
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} else {
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$html = \html_writer::start_tag('ul', ['class' => 'parent', 'role' => 'group']);
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}
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foreach ($tree->children as $child) {
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if (isset($child->children)) {
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$html .= \html_writer::start_tag('li', ['class' => 'menu-item', 'role' => 'treeitem', 'aria-expanded' => 'false']);
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$html .= $child->name;
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$html .= $this->create_navigation($child);
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} else {
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$html .= \html_writer::start_tag('li', ['class' => 'item', 'role' => 'treeitem', 'aria-expanded' => 'false']);
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// Normal display.
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if (isset($child->datavar)) {
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$html .= \html_writer::link('#', $child->name, ['data-var' => $child->datavar]);
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} else {
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$html .= \html_writer::link($child->url, $child->name, ['target' => '_blank']);
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}
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}
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$html .= \html_writer::end_tag('li');
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}
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$html .= \html_writer::end_tag('ul');
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return $html;
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}
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/**
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* Export this data so it can be used as the context for a mustache template.
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*
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* @param renderer_base $output
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* @return array navigation data for the template.
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*/
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public function export_for_template(renderer_base $output): Array {
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$data = $this->create_navigation($this->tree);
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return ['navigation' => $data];
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}
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}
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