Moodle 3.11 XRef and Diffs

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Bug fixes for general core bugs in 3.11.x will end 14 Nov 2022 (12 months plus 6 months extension).
Bug fixes for security issues in 3.11.x will end 13 Nov 2023 (18 months plus 12 months extension).
PHP version: minimum PHP 7.3.0 Note: minimum PHP version has increased since Moodle 3.10. PHP 7.4.x is supported too.

Moodle 3.11 Database Schema (by Marcus Green)

/admin/tool/brickfield/classes/local/htmlchecker/common/ -> body_wai_ert_color_contrast.php (source)

   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  namespace tool_brickfield\local\htmlchecker\common;
  18  
  19  /**
  20   * Base class for test dealing with WAI ERT color contrast for the document
  21   *
  22   * Because a lot of the tests deal with text, vlink, alink, etc.
  23   *
  24   * @package    tool_brickfield
  25   * @copyright  2020 onward: Brickfield Education Labs, www.brickfield.ie
  26   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  27   */
  28  class body_wai_ert_color_contrast extends brickfield_accessibility_color_test {
  29      /** @var string The attribute to check for the background color of the <body> tag */
  30      public $background = 'bgcolor';
  31  
  32      /** @var string The attribute to check for the foreground color of the <body> tag */
  33      public $foreground = 'text';
  34  
  35      /**
  36       *    Compares the WAI ERT contrast on the given color attributes of the <body> tag
  37       */
  38      public function check() {
  39          $body = $this->get_all_elements('body');
  40          if (!$body) {
  41              return false;
  42          }
  43          $body = $body[0];
  44          if ($body->hasAttribute($this->foreground) && $body->hasAttribute($this->background)) {
  45              if ($this->get_wai_ert_contrast($body->getAttribute($this->foreground), $body->getAttribute($this->background)) < 500) {
  46                  $this->add_report(null, null, false);
  47              } else if ($this->get_wai_ert_brightness($body->getAttribute($this->foreground),
  48                      $body->getAttribute($this->background)) < 125) {
  49                  $this->add_report(null, null, false);
  50              }
  51          }
  52      }
  53  }