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✏️ Editing: table_summary_does_not_duplicate_caption.php

<?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.
 *
 * Table summaries do not duplicate the table captions.
 * The summary and the caption must be different. Caption identifies the table. Summary describes the table contents.
 *
 * @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 table_summary_does_not_duplicate_caption extends brickfield_accessibility_test {

/** @var int The default severity code for this test. */
    public $defaultseverity = \tool_brickfield\local\htmlchecker\brickfield_accessibility::BA_TEST_SEVERE;

/**
     * The main check function. This is called by the parent class to actually check content
     */
    public function check(): void {
        foreach ($this->get_all_elements('table') as $table) {
            if ($this->element_has_child($table, 'caption') && $table->hasAttribute('summary')) {
                foreach ($table->childNodes as $child) {
                    if ($this->property_is_equal($child, 'tagName', 'caption')) {
                        $caption = $child;
                    }
                }
                if (strtolower(trim($caption->nodeValue)) ==
                    strtolower(trim($table->getAttribute('summary')))) {
                    $this->add_report($table);
                }
            }
        }
    }
}

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