files/renderer.php

   1 <?php
   2 ///////////////////////////////////////////////////////////////////////////
   3 //                                                                       //
   4 // This file is part of Moodle - http://moodle.org/                      //
   5 // Moodle - Modular Object-Oriented Dynamic Learning Environment         //
   6 //                                                                       //
   7 // Moodle is free software: you can redistribute it and/or modify        //
   8 // it under the terms of the GNU General Public License as published by  //
   9 // the Free Software Foundation, either version 3 of the License, or     //
  10 // (at your option) any later version.                                   //
  11 //                                                                       //
  12 // Moodle is distributed in the hope that it will be useful,             //
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of        //
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         //
  15 // GNU General Public License for more details.                          //
  16 //                                                                       //
  17 // You should have received a copy of the GNU General Public License     //
  18 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.       //
  19 //                                                                       //
  20 ///////////////////////////////////////////////////////////////////////////
  21
  22 defined('MOODLE_INTERNAL') || die();
  23
  24 /**
  25  * Rendering of files viewer related widgets.
  26  * @package   core
  27  * @subpackage file
  28  * @copyright 2010 Dongsheng Cai
  29  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  30  * @since     Moodle 2.0
  31  */
  32
  33 /**
  34  * File browser render
  35  *
  36  * @copyright 2010 Dongsheng Cai
  37  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  38  * @since     Moodle 2.0
  39  */
  40 class core_files_renderer extends plugin_renderer_base {
  41
  42     public function files_tree_viewer(file_info $file_info, array $options = null) {
  43         $tree = new files_tree_viewer($file_info, $options);
  44         return $this->render($tree);
  45     }
  46
  47     public function render_files_tree_viewer(files_tree_viewer $tree) {
  48         $html = $this->output->heading_with_help(get_string('coursefiles'), 'courselegacyfiles', 'moodle');
  49
  50         $html .= $this->output->container_start('coursefilesbreadcrumb');
  51         foreach($tree->path as $path) {
  52             $html .= $path;
  53             $html .= ' / ';
  54         }
  55         $html .= $this->output->container_end();
  56
  57         $html .= $this->output->box_start();
  58         $table = new html_table();
  59         $table->head = array(get_string('name'), get_string('lastmodified'), get_string('size', 'repository'), get_string('type', 'repository'));
  60         $table->align = array('left', 'left', 'left', 'left');
  61         $table->width = '100%';
  62         $table->data = array();
  63
  64         foreach ($tree->tree as $file) {
  65             $filedate = $filesize = $filetype = '';
  66             if ($file['filedate']) {
  67                 $filedate = userdate($file['filedate'], get_string('strftimedatetimeshort', 'langconfig'));
  68             }
  69             if (empty($file['isdir'])) {
  70                 if ($file['filesize']) {
  71                     $filesize = display_size($file['filesize']);
  72                 }
  73                 $fileicon = file_file_icon($file, 24);
  74                 $filetype = get_mimetype_description($file);
  75             } else {
  76                 $fileicon = file_folder_icon(24);
  77             }
  78             $table->data[] = array(
  79                 html_writer::link($file['url'], $this->output->pix_icon($fileicon, get_string('icon')) . ' ' . $file['filename']),
  80                 $filedate,
  81                 $filesize,
  82                 $filetype
  83                 );
  84         }
  85
  86         $html .= html_writer::table($table);
  87         $html .= $this->output->single_button(new moodle_url('/files/coursefilesedit.php', array('contextid'=>$tree->context->id)), get_string('coursefilesedit'), 'get');
  88         $html .= $this->output->box_end();
  89         return $html;
  90     }
  91
  92     /**
  93      * Prints the file manager and initializes all necessary libraries
  94      *
  95      * <pre>
  96      * $fm = new form_filemanager($options);
  97      * $output = get_renderer('core', 'files');
  98      * echo $output->render($fm);
  99      * </pre>
 100      *
 101      * @param form_filemanager $fm File manager to render
 102      * @return string HTML fragment
 103      */
 104     public function render_form_filemanager($fm) {
 105         $html = $this->fm_print_generallayout($fm);
 106         $module = array(
 107             'name'=>'form_filemanager',
 108             'fullpath'=>'/lib/form/filemanager.js',
 109             'requires' => array('moodle-core-notification-dialogue', 'core_filepicker', 'base', 'io-base', 'node', 'json', 'core_dndupload', 'panel', 'resize-plugin', 'dd-plugin'),
 110             'strings' => array(
 111                 array('error', 'moodle'), array('info', 'moodle'), array('confirmdeletefile', 'repository'),
 112                 array('draftareanofiles', 'repository'), array('entername', 'repository'), array('enternewname', 'repository'),
 113                 array('invalidjson', 'repository'), array('popupblockeddownload', 'repository'),
 114                 array('unknownoriginal', 'repository'), array('confirmdeletefolder', 'repository'),
 115                 array('confirmdeletefilewithhref', 'repository'), array('confirmrenamefolder', 'repository'),
 116                 array('confirmrenamefile', 'repository'), array('newfolder', 'repository'), array('edit', 'moodle'),
 117                 array('originalextensionchange', 'repository'), array('originalextensionremove', 'repository'),
 118                 array('aliaseschange', 'repository'), ['nofilesselected', 'repository'],
 119                 ['confirmdeleteselectedfile', 'repository'], ['selectall', 'moodle'], ['deselectall', 'moodle'],
 120                 ['selectallornone', 'form'],
 121             )
 122         );
 123         if ($this->page->requires->should_create_one_time_item_now('core_file_managertemplate')) {
 124             $this->page->requires->js_init_call('M.form_filemanager.set_templates',
 125                     array($this->filemanager_js_templates()), true, $module);
 126         }
 127         $this->page->requires->js_call_amd('core/checkbox-toggleall', 'init');
 128         $this->page->requires->js_init_call('M.form_filemanager.init', array($fm->options), true, $module);
 129
 130         // non javascript file manager
 131         $html .= '<noscript>';
 132         $html .= "<div><object type='text/html' data='".$fm->get_nonjsurl()."' height='160' width='600' style='border:1px solid #000'></object></div>";
 133         $html .= '</noscript>';
 134
 135
 136         return $html;
 137     }
 138
 139     /**
 140      * Returns html for displaying one file manager
 141      *
 142      * @param form_filemanager $fm
 143      * @return string
 144      */
 145     protected function fm_print_generallayout($fm) {
 146         $context = [
 147                 'client_id' => $fm->options->client_id,
 148                 'helpicon' => $this->help_icon('setmainfile', 'repository'),
 149                 'restrictions' => $this->fm_print_restrictions($fm)
 150         ];
 151         return $this->render_from_template('core/filemanager_page_generallayout', $context);
 152     }
 153
 154     /**
 155      * FileManager JS template for displaying one file in 'icon view' mode.
 156      *
 157      * Except for elements described in fp_js_template_iconfilename, this template may also
 158      * contain element with class 'fp-contextmenu'. If context menu is available for this
 159      * file, the top element will receive the additional class 'fp-hascontextmenu' and
 160      * the element with class 'fp-contextmenu' will hold onclick event for displaying
 161      * the context menu.
 162      *
 163      * @see fp_js_template_iconfilename()
 164      * @return string
 165      */
 166     protected function fm_js_template_iconfilename() {
 167         $rv = '
 168 <div class="fp-file">
 169     <a href="#" class="d-block aabtn">
 170     <div style="position:relative;">
 171         <div class="fp-thumbnail"></div>
 172         <div class="fp-reficons1"></div>
 173         <div class="fp-reficons2"></div>
 174     </div>
 175     <div class="fp-filename-field">
 176         <div class="fp-filename text-truncate"></div>
 177     </div>
 178     </a>
 179     <a class="fp-contextmenu btn btn-icon btn-light border icon-no-margin icon-size-3" href="#">
 180         <span>'.$this->pix_icon('i/menu', '▶').'</span></a>
 181 </div>';
 182         return $rv;
 183     }
 184
 185     /**
 186      * FileManager JS template for displaying file name in 'table view' and 'tree view' modes.
 187      *
 188      * Except for elements described in fp_js_template_listfilename, this template may also
 189      * contain element with class 'fp-contextmenu'. If context menu is available for this
 190      * file, the top element will receive the additional class 'fp-hascontextmenu' and
 191      * the element with class 'fp-contextmenu' will hold onclick event for displaying
 192      * the context menu.
 193      *
 194      * @todo MDL-32736 remove onclick="return false;"
 195      * @see fp_js_template_listfilename()
 196      * @return string
 197      */
 198     protected function fm_js_template_listfilename() {
 199         $rv = '
 200 <span class="fp-filename-icon">
 201     <a href="#">
 202     <span class="fp-icon"></span>
 203     <span class="fp-reficons1"></span>
 204     <span class="fp-reficons2"></span>
 205     <span class="fp-filename"></span>
 206     </a>
 207     <a class="fp-contextmenu" href="#" onclick="return false;">'.$this->pix_icon('i/menu', '▶').'</a>
 208 </span>';
 209         return $rv;
 210     }
 211
 212     /**
 213      * FileManager JS template for displaying 'Make new folder' dialog.
 214      *
 215      * Must be wrapped in an element, CSS for this element must define width and height of the window;
 216      *
 217      * Must have one input element with type="text" (for users to enter the new folder name);
 218      *
 219      * content of element with class 'fp-dlg-curpath' will be replaced with current path where
 220      * new folder is about to be created;
 221      * elements with classes 'fp-dlg-butcreate' and 'fp-dlg-butcancel' will hold onclick events;
 222      *
 223      * @return string
 224      */
 225     protected function fm_js_template_mkdir() {
 226         $rv = '
 227 <div class="filemanager fp-mkdir-dlg" role="dialog" aria-live="assertive" aria-labelledby="fp-mkdir-dlg-title">
 228     <div class="fp-mkdir-dlg-text">
 229         <label id="fp-mkdir-dlg-title">' . get_string('newfoldername', 'repository') . '</label><br/>
 230         <input type="text" class="form-control"/>
 231     </div>
 232     <button class="fp-dlg-butcreate btn-primary btn">'.get_string('makeafolder').'</button>
 233     <button class="fp-dlg-butcancel btn-cancel btn">'.get_string('cancel').'</button>
 234 </div>';
 235         return $rv;
 236     }
 237
 238     /**
 239      * FileManager JS template for error/info message displayed as a separate popup window.
 240      *
 241      * @see fp_js_template_message()
 242      * @return string
 243      */
 244     protected function fm_js_template_message() {
 245         return $this->fp_js_template_message();
 246     }
 247
 248     /**
 249      * FileManager JS template for window with file information/actions.
 250      *
 251      */
 252     protected function fm_js_template_fileselectlayout() {
 253         $context = [
 254                 'helpicon' => $this->help_icon('setmainfile', 'repository'),
 255                 'licensehelpicon' => $this->create_license_help_icon_context(),
 256                 'columns' => true
 257         ];
 258         return $this->render_from_template('core/filemanager_fileselect', $context);
 259     }
 260
 261     /**
 262      * FileManager JS template for popup confirm dialogue window.
 263      *
 264      * @return string
 265      */
 266     protected function fm_js_template_confirmdialog() {
 267         return $this->render_from_template('core/filemanager_confirmdialog', []);
 268     }
 269
 270     /**
 271      * Returns all FileManager JavaScript templates as an array.
 272      *
 273      * @return array
 274      */
 275     public function filemanager_js_templates() {
 276         $class_methods = get_class_methods($this);
 277         $templates = array();
 278         foreach ($class_methods as $method_name) {
 279             if (preg_match('/^fm_js_template_(.*)$/', $method_name, $matches))
 280             $templates[$matches[1]] = $this->$method_name();
 281         }
 282         return $templates;
 283     }
 284
 285     /**
 286      * Displays restrictions for the file manager
 287      *
 288      * @param form_filemanager $fm
 289      * @return string
 290      */
 291     protected function fm_print_restrictions($fm) {
 292         $maxbytes = display_size($fm->options->maxbytes);
 293         $strparam = (object) array('size' => $maxbytes, 'attachments' => $fm->options->maxfiles,
 294             'areasize' => display_size($fm->options->areamaxbytes));
 295         $hasmaxfiles = !empty($fm->options->maxfiles) && $fm->options->maxfiles > 0;
 296         $hasarealimit = !empty($fm->options->areamaxbytes) && $fm->options->areamaxbytes != -1;
 297         if ($hasmaxfiles && $hasarealimit) {
 298             $maxsize = get_string('maxsizeandattachmentsandareasize', 'moodle', $strparam);
 299         } else if ($hasmaxfiles) {
 300             $maxsize = get_string('maxsizeandattachments', 'moodle', $strparam);
 301         } else if ($hasarealimit) {
 302             $maxsize = get_string('maxsizeandareasize', 'moodle', $strparam);
 303         } else {
 304             $maxsize = get_string('maxfilesize', 'moodle', $maxbytes);
 305         }
 306         // TODO MDL-32020 also should say about 'File types accepted'
 307         return '<span>'. $maxsize . '</span>';
 308     }
 309
 310     /**
 311      * Template for FilePicker with general layout (not QuickUpload).
 312      *
 313      *
 314      * @return string
 315      */
 316     protected function fp_js_template_generallayout() {
 317         return $this->render_from_template('core/filemanager_modal_generallayout', []);
 318     }
 319
 320     /**
 321      * FilePicker JS template for displaying one file in 'icon view' mode.
 322      *
 323      * the element with class 'fp-thumbnail' will be resized to the repository thumbnail size
 324      * (both width and height, unless min-width and/or min-height is set in CSS) and the content of
 325      * an element will be replaced with an appropriate img;
 326      *
 327      * the width of element with class 'fp-filename' will be set to the repository thumbnail width
 328      * (unless min-width is set in css) and the content of an element will be replaced with filename
 329      * supplied by repository;
 330      *
 331      * top element(s) will have class fp-folder if the element is a folder;
 332      *
 333      * List of files will have parent <div> element with class 'fp-iconview'
 334      *
 335      * @return string
 336      */
 337     protected function fp_js_template_iconfilename() {
 338         $rv = '
 339 <a class="fp-file" href="#" >
 340     <div style="position:relative;">
 341         <div class="fp-thumbnail"></div>
 342         <div class="fp-reficons1"></div>
 343         <div class="fp-reficons2"></div>
 344     </div>
 345     <div class="fp-filename-field">
 346         <p class="fp-filename text-truncate"></p>
 347     </div>
 348 </a>';
 349         return $rv;
 350     }
 351
 352     /**
 353      * FilePicker JS template for displaying file name in 'table view' and 'tree view' modes.
 354      *
 355      * content of the element with class 'fp-icon' will be replaced with an appropriate img;
 356      *
 357      * content of element with class 'fp-filename' will be replaced with filename supplied by
 358      * repository;
 359      *
 360      * top element(s) will have class fp-folder if the element is a folder;
 361      *
 362      * Note that tree view and table view are the YUI widgets and therefore there are no
 363      * other templates. The widgets will be wrapped in <div> with class fp-treeview or
 364      * fp-tableview (respectfully).
 365      *
 366      * @return string
 367      */
 368     protected function fp_js_template_listfilename() {
 369         $rv = '
 370 <span class="fp-filename-icon">
 371     <a href="#">
 372         <span class="fp-icon"></span>
 373         <span class="fp-filename"></span>
 374     </a>
 375 </span>';
 376         return $rv;
 377     }
 378
 379     /**
 380      * FilePicker JS template for displaying link/loading progress for fetching of the next page
 381      *
 382      * This text is added to .fp-content AFTER .fp-iconview/.fp-treeview/.fp-tableview
 383      *
 384      * Must have one parent element with class 'fp-nextpage'. It will be assigned additional
 385      * class 'loading' during loading of the next page (it is recommended that in this case the link
 386      * becomes unavailable). Also must contain one element <a> or <button> that will hold
 387      * onclick event for displaying of the next page. The event will be triggered automatically
 388      * when user scrolls to this link.
 389      *
 390      * @return string
 391      */
 392     protected function fp_js_template_nextpage() {
 393         $rv = '
 394 <div class="fp-nextpage">
 395     <div class="fp-nextpage-link"><a href="#">'.get_string('more').'</a></div>
 396     <div class="fp-nextpage-loading">
 397         ' . $this->pix_icon('i/loading_small', '') . '
 398     </div>
 399 </div>';
 400         return $rv;
 401     }
 402
 403     /**
 404      * FilePicker JS template for window appearing to select a file.
 405      *
 406      * @return string
 407      */
 408     protected function fp_js_template_selectlayout() {
 409         $context = [
 410             'licensehelpicon' => $this->create_license_help_icon_context()
 411         ];
 412         return $this->render_from_template('core/filemanager_selectlayout', $context);
 413     }
 414
 415     /**
 416      * FilePicker JS template for 'Upload file' repository
 417      *
 418      * @return string
 419      */
 420     protected function fp_js_template_uploadform() {
 421         $context = [
 422             'licensehelpicon' => $this->create_license_help_icon_context()
 423         ];
 424         return $this->render_from_template('core/filemanager_uploadform', $context);
 425     }
 426
 427     /**
 428      * FilePicker JS template to display during loading process (inside element with class 'fp-content').
 429      *
 430      * @return string
 431      */
 432     protected function fp_js_template_loading() {
 433         return '
 434 <div class="fp-content-loading">
 435     <div class="fp-content-center">
 436         ' . $this->pix_icon('i/loading_small', '') . '
 437     </div>
 438 </div>';
 439     }
 440
 441     /**
 442      * FilePicker JS template for error (inside element with class 'fp-content').
 443      *
 444      * must have element with class 'fp-error', its content will be replaced with error text
 445      * and the error code will be assigned as additional class to this element
 446      * used errors: invalidjson, nofilesavailable, norepositoriesavailable
 447      *
 448      * @return string
 449      */
 450     protected function fp_js_template_error() {
 451         $rv = '
 452 <div class="fp-content-error" ><div class="fp-error"></div></div>';
 453         return $rv;
 454     }
 455
 456     /**
 457      * FilePicker JS template for error/info message displayed as a separate popup window.
 458      *
 459      * Must be wrapped in one element, CSS for this element must define
 460      * width and height of the window. It will be assigned with an additional class 'fp-msg-error'
 461      * or 'fp-msg-info' depending on message type;
 462      *
 463      * content of element with class 'fp-msg-text' will be replaced with error/info text;
 464      *
 465      * element with class 'fp-msg-butok' will hold onclick event
 466      *
 467      * @return string
 468      */
 469     protected function fp_js_template_message() {
 470         $rv = '
 471 <div class="file-picker fp-msg" role="alertdialog" aria-live="assertive" aria-labelledby="fp-msg-labelledby">
 472     <p class="fp-msg-text" id="fp-msg-labelledby"></p>
 473     <button class="fp-msg-butok btn-primary btn">'.get_string('ok').'</button>
 474 </div>';
 475         return $rv;
 476     }
 477
 478     /**
 479      * FilePicker JS template for popup dialogue window asking for action when file with the same name already exists.
 480      *
 481      * @return string
 482      */
 483     protected function fp_js_template_processexistingfile() {
 484         return $this->render_from_template('core/filemanager_processexistingfile', []);
 485     }
 486
 487     /**
 488      * FilePicker JS template for popup dialogue window asking for action when file with the same name already exists
 489      * (multiple-file version).
 490      *
 491      * @return string
 492      */
 493     protected function fp_js_template_processexistingfilemultiple() {
 494         return $this->render_from_template('core/filemanager_processexistingfilemultiple', []);
 495     }
 496
 497     /**
 498      * FilePicker JS template for repository login form including templates for each element type
 499      *
 500      * @return string
 501      */
 502     protected function fp_js_template_loginform() {
 503         return $this->render_from_template('core/filemanager_loginform', []);
 504     }
 505
 506     /**
 507      * Returns all FilePicker JavaScript templates as an array.
 508      *
 509      * @return array
 510      */
 511     public function filepicker_js_templates() {
 512         $class_methods = get_class_methods($this);
 513         $templates = array();
 514         foreach ($class_methods as $method_name) {
 515             if (preg_match('/^fp_js_template_(.*)$/', $method_name, $matches))
 516             $templates[$matches[1]] = $this->$method_name();
 517         }
 518         return $templates;
 519     }
 520
 521     /**
 522      * Returns HTML for default repository searchform to be passed to Filepicker
 523      *
 524      * This will be used as contents for search form defined in generallayout template
 525      * (form with id {TOOLSEARCHID}).
 526      * Default contents is one text input field with name="s"
 527      */
 528     public function repository_default_searchform() {
 529         return $this->render_from_template('core/filemanager_default_searchform', []);
 530     }
 531
 532     /**
 533      * Create the context for rendering help icon with license links displaying all licenses and sources.
 534      *
 535      * @return \stdClass $iconcontext the context for rendering license help info.
 536      */
 537     protected function create_license_help_icon_context() : stdClass {
 538         $licensecontext = new stdClass();
 539
 540         $licenses = [];
 541         // Discard licenses without a name or source from enabled licenses.
 542         foreach (license_manager::get_active_licenses() as $license) {
 543             if (!empty($license->fullname) && !empty($license->source)) {
 544                 $licenses[] = $license;
 545             }
 546         }
 547
 548         $licensecontext->licenses = $licenses;
 549         $helptext = $this->render_from_template('core/filemanager_licenselinks', $licensecontext);
 550
 551         $iconcontext = new stdClass();
 552         $iconcontext->text = $helptext;
 553         $iconcontext->alt = get_string('helpprefix2', 'moodle', get_string('chooselicense', 'repository'));
 554
 555         return $iconcontext;
 556     }
 557 }
 558
 559 /**
 560  * Data structure representing a general moodle file tree viewer
 561  *
 562  * @copyright 2010 Dongsheng Cai
 563  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 564  * @since     Moodle 2.0
 565  */
 566 class files_tree_viewer implements renderable {
 567     public $tree;
 568     public $path;
 569     public $context;
 570
 571     /**
 572      * Constructor of moodle_file_tree_viewer class
 573      * @param file_info $file_info
 574      * @param array $options
 575      */
 576     public function __construct(file_info $file_info, array $options = null) {
 577         global $CFG;
 578
 579         //note: this MUST NOT use get_file_storage() !!!!!!!!!!!!!!!!!!!!!!!!!!!!
 580         $this->options = (array)$options;
 581         $this->context = $options['context'];
 582
 583         $this->tree = array();
 584         $children = $file_info->get_children();
 585         $current_file_params = $file_info->get_params();
 586         $parent_info = $file_info->get_parent();
 587         $level = $parent_info;
 588         $this->path = array();
 589         while ($level) {
 590             $params = $level->get_params();
 591             $context = context::instance_by_id($params['contextid']);
 592             // $this->context is current context
 593             if ($context->id != $this->context->id or empty($params['filearea'])) {
 594                 break;
 595             }
 596             // unset unused parameters
 597             unset($params['component']);
 598             unset($params['filearea']);
 599             unset($params['filename']);
 600             unset($params['itemid']);
 601             $url = new moodle_url('/files/index.php', $params);
 602             $this->path[] = html_writer::link($url, $level->get_visible_name());
 603             $level = $level->get_parent();
 604         }
 605         $this->path = array_reverse($this->path);
 606         if ($current_file_params['filepath'] != '/') {
 607             $this->path[] = $file_info->get_visible_name();
 608         }
 609
 610         foreach ($children as $child) {
 611             $filedate = $child->get_timemodified();
 612             $filesize = $child->get_filesize();
 613             $mimetype = $child->get_mimetype();
 614             $params = $child->get_params();
 615             unset($params['component']);
 616             unset($params['filearea']);
 617             unset($params['filename']);
 618             unset($params['itemid']);
 619             $fileitem = array(
 620                     'params'   => $params,
 621                     'filename' => $child->get_visible_name(),
 622                     'mimetype' => $child->get_mimetype(),
 623                     'filedate' => $filedate ? $filedate : '',
 624                     'filesize' => $filesize ? $filesize : ''
 625                     );
 626             $url = new moodle_url('/files/index.php', $params);
 627             if ($child->is_directory()) {
 628                 $fileitem['isdir'] = true;
 629                 $fileitem['url'] = $url->out(false);
 630             } else {
 631                 $fileitem['url'] = $child->get_url();
 632             }
 633             $this->tree[] = $fileitem;
 634         }
 635     }
 636 }