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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. * * Anchor should not open new window without warning. * a (anchor) element must not contain a target attribute unless the target attribute value is either _self, _top, or _parent. * * @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 a_links_dont_open_new_window extends brickfield_accessibility_test { /* @var int $defaultseverity The default severity code for this test. / public $defaultseverity = \tool_brickfield\local\htmlchecker\brickfield_accessibility::BA_TEST_SEVERE; /* @var string[] A list of targets allowed that don't open a new window. / public $allowedtargets = array('_self', '_parent', '_top', ''); /* * The main check function. This is called by the parent class to actually check content. */ public function check(): void { // Need to process all enabled lang versions of newwindowphrases. $text = brickfield_accessibility_test::get_all_newwindowphrases(); foreach ($this->get_all_elements('a') as $a) { if ($a->hasAttribute('target') && !in_array($a->getAttribute('target'), $this->allowedtargets)) { $phrasefound = false; foreach ($text as $phrase) { // Sanity check for readable text. if (!brickfield_accessibility_test::is_text_readable($phrase)) { break; } $pos = stripos($a->nodeValue, $phrase); if ($pos !== false) { $phrasefound = true; break; } } if (!$phrasefound) { $this->add_report($a); } } } } }

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