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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; /** * Special base class which provides helper methods for tables. * * @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 brickfield_accessibility_table_test extends brickfield_accessibility_test { /* * Takes the element object of a main table and returns the number of rows and columns in it. * @param \stdClass $table * @return array An array with the 'rows' value showing the number of rows, and column showing the number of columns / public function get_table(\stdClass $table): array { $rows = 0; $columns = 0; $firstrow = true; if ($table->tagName != 'table') { return false; } foreach ($table->childNodes as $child) { if (property_exists($child, 'tagName') && $child->tagName == 'tr') { $rows++; if ($firstrow) { foreach ($child->childNodes as $columnchild) { if ($columnchild->tagName == 'th' \|\| $columnchild->tagName == 'td') { $columns++; } } $firstrow = false; } } } return ['rows' => $rows, 'columns' => $columns]; } /* * Finds whether or not the table is a data table. Checks that the * table has a logical order and uses 'th' or 'thead' tags to illustrate * the page author thought it was a data table. * @param object $table The DOMElement object of the table tag * @return bool TRUE if the element is a data table, otherwise false */ public function is_data($table): bool { if ($table->tagName != 'table') { return false; } foreach ($table->childNodes as $child) { if (property_exists($child, 'tagName') && $child->tagName == 'tr') { foreach ($child->childNodes as $rowchild) { if (property_exists($rowchild, 'tagName') && $rowchild->tagName == 'th') { return true; } } } if (property_exists($child, 'tagName') && $child->tagName == 'thead') { return true; } } return false; } }

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