blocks/private_files/renderer.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 /**
  18  * Print private files tree
  19  *
  20  * @package    block_private_files
  21  * @copyright  2010 Dongsheng Cai <dongsheng@moodle.com>
  22  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 defined('MOODLE_INTERNAL') || die();
  26
  27 class block_private_files_renderer extends plugin_renderer_base {
  28
  29     /**
  30      * Prints private files tree view
  31      * @return string
  32      */
  33     public function private_files_tree() {
  34         return $this->render(new private_files_tree);
  35     }
  36
  37     public function render_private_files_tree(private_files_tree $tree) {
  38         if (empty($tree->dir['subdirs']) && empty($tree->dir['files'])) {
  39             $html = $this->output->box(get_string('nofilesavailable', 'repository'));
  40         } else {
  41             $htmlid = 'private_files_tree_'.uniqid();
  42             $this->page->requires->js_call_amd('block_private_files/files_tree', 'init', [$htmlid]);
  43             $html = '<div id="'.$htmlid.'">';
  44             $html .= $this->htmllize_tree($tree, $tree->dir, true);
  45             $html .= '</div>';
  46         }
  47
  48         return $html;
  49     }
  50
  51     /**
  52      * Internal function - creates htmls structure suitable for core/tree AMD.
  53      *
  54      * @param private_files_tree $tree The renderable tree.
  55      * @param array $dir The directory in the tree
  56      * @param bool $isroot If it is the root directory in the tree.
  57      * @return string
  58      */
  59     protected function htmllize_tree($tree, $dir, $isroot) {
  60         global $CFG;
  61
  62         if (empty($dir['subdirs']) and empty($dir['files'])) {
  63             return '';
  64         }
  65         if ($isroot) {
  66             $result = '<ul role="tree" aria-label="' . s(get_string('privatefiles')) . '">';
  67         } else {
  68             $result = '<ul role="group" aria-hidden="true">';
  69         }
  70         foreach ($dir['subdirs'] as $subdir) {
  71             $image = $this->output->pix_icon(file_folder_icon(), '');
  72             $content = $this->htmllize_tree($tree, $subdir, false);
  73             if ($content) {
  74                 $result .= '<li role="treeitem" aria-expanded="false"><p>' . $image . s($subdir['dirname']) . '</p>' .
  75                     $content . '</li>';
  76             } else {
  77                 $result .= '<li role="treeitem"><p>' . $image . s($subdir['dirname']) . '</p></li>';
  78             }
  79         }
  80         foreach ($dir['files'] as $file) {
  81             $url = file_encode_url("$CFG->wwwroot/pluginfile.php", '/'.$tree->context->id.'/user/private'.$file->get_filepath().$file->get_filename(), true);
  82             $filename = $file->get_filename();
  83             $image = $this->output->pix_icon(file_file_icon($file), '');
  84             $result .= '<li role="treeitem">'.html_writer::link($url, $image.$filename, ['tabindex' => -1]).'</li>';
  85         }
  86         $result .= '</ul>';
  87
  88         return $result;
  89     }
  90 }
  91
  92 class private_files_tree implements renderable {
  93     public $context;
  94     public $dir;
  95     public function __construct() {
  96         global $USER;
  97         $this->context = context_user::instance($USER->id);
  98         $fs = get_file_storage();
  99         $this->dir = $fs->get_area_tree($this->context->id, 'user', 'private', 0);
 100     }
 101 }