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<?php // This file is part of Moodle - http://moodle.org/ // // Moodle is free software: you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation, either version 3 of the License, or // (at your option) any later version. // // Moodle is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with Moodle. If not, see <http://www.gnu.org/licenses/>. namespace tool_brickfield\local\htmlchecker\common\checks; use tool_brickfield\local\htmlchecker\common\brickfield_accessibility_test; /** * Brickfield accessibility HTML checker library. * * Alt text for all img elements is not placeholder text unless author has confirmed it is correct. * 'img' element cannot have alt attribute value of "nbsp" or "spacer". * * @package tool_brickfield * @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later / class img_alt_not_place_holder extends brickfield_accessibility_test { /* @var int The default severity code for this test. / public $defaultseverity = \tool_brickfield\local\htmlchecker\brickfield_accessibility::BA_TEST_SEVERE; /* @var \string[][] An array of strings, broken up by language domain. / public $strings = [ 'en' => array('nbsp', ' ', 'spacer', 'image', 'img', 'photo'), 'es' => array('nbsp', ' ', 'spacer', 'espacio', 'imagen', 'img', 'foto'), ]; /* * The main check function. This is called by the parent class to actually check content. / public function check(): void { foreach ($this->get_all_elements('img') as $img) { if ($img->hasAttribute('alt')) { if (strlen($img->getAttribute('alt')) > 0) { if (in_array($img->getAttribute('alt'), $this->translation()) \|\| ord($img->getAttribute('alt')) == 194) { $this->add_report($img); } else if (preg_match("/^([0-9])(k\|kb\|mb\|k bytes\|k byte)?$/", strtolower($img->getAttribute('alt')))) { $this->add_report($img); } } } } } }

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