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Developer Documentation


Long Term Support Release

  • Bug fixes for general core bugs in 3.9.x will end* 10 May 2021 (12 months).
  • Bug fixes for security issues in 3.9.x will end* 8 May 2023 (36 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
  • Differences Between: [Versions 32 and 39] [Versions 33 and 39] [Versions 34 and 39] [Versions 35 and 39] [Versions 36 and 39] [Versions 37 and 39]

       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   * This file is responsible for serving of individual style sheets in designer mode.
      19   *
      20   * @package   core
      21   * @copyright 2009 Petr Skoda (skodak)  {@link http://skodak.org}
      22   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
      23   */
      24  
      25  // Disable moodle specific debug messages and any errors in output,
      26  // comment out when debugging or better look into error log!
      27  define('NO_DEBUG_DISPLAY', true);
      28  define('NO_UPGRADE_CHECK', true);
      29  define('NO_MOODLE_COOKIES', true);
      30  
      31  require('../config.php');
      32  require_once($CFG->dirroot.'/lib/csslib.php');
      33  
      34  $themename = optional_param('theme', 'standard', PARAM_SAFEDIR);
      35  $type      = optional_param('type', '', PARAM_SAFEDIR);
      36  $subtype   = optional_param('subtype', '', PARAM_SAFEDIR);
      37  $sheet     = optional_param('sheet', '', PARAM_SAFEDIR);
      38  $usesvg    = optional_param('svg', 1, PARAM_BOOL);
      39  $rtl       = optional_param('rtl', false, PARAM_BOOL);
      40  
      41  if (file_exists("$CFG->dirroot/theme/$themename/config.php")) {
      42      // The theme exists in standard location - ok.
      43  } else if (!empty($CFG->themedir) and file_exists("$CFG->themedir/$themename/config.php")) {
      44      // Alternative theme location contains this theme - ok.
      45  } else {
      46      css_send_css_not_found();
      47  }
      48  
      49  $theme = theme_config::load($themename);
      50  $theme->force_svg_use($usesvg);
      51  $theme->set_rtl_mode($rtl);
      52  
      53  if ($type === 'editor') {
      54      $csscontent = $theme->get_css_content_editor();
      55      css_send_uncached_css($csscontent);
      56  }
      57  
      58  // We need some kind of caching here because otherwise the page navigation becomes
      59  // way too slow in theme designer mode. Feel free to create full cache definition later...
      60  $key = "$type $subtype $sheet $usesvg $rtl";
      61  $cache = cache::make_from_params(cache_store::MODE_APPLICATION, 'core', 'themedesigner', array('theme' => $themename));
      62  if ($content = $cache->get($key)) {
      63      if ($content['created'] > time() - THEME_DESIGNER_CACHE_LIFETIME) {
      64          $csscontent = $content['data'];
      65          css_send_uncached_css($csscontent);
      66      }
      67  }
      68  
      69  $csscontent = $theme->get_css_content_debug($type, $subtype, $sheet);
      70  $cache->set($key, array('data' => $csscontent, 'created' => time()));
      71  
      72  css_send_uncached_css($csscontent);
    

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