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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;
/**
* Base test class for tests which checks that the given input tag has an associated lable tag.
*
* @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 input_has_label extends brickfield_accessibility_test {
// To override, just override the tag and type variables, and use $no_type = true if it is a special form tag like textarea.
/** @var string The tag name that this test applies to */
public $tag = 'input';
/** @var string The type of input tag this is */
public $type = 'text';
/** @var bool Wehether or not we should check the type attribute of the input tags */
public $notype = false;
/**
* Iterate through all the elemetns using the $tag tagname and the $type attribute (if appropriate)
* and then check it against a list of all LABEL tags.
*/
public function check() {
foreach ($this->get_all_elements('label') as $label) {
if ($label->hasAttribute('for')) {
$labels[$label->getAttribute('for')] = $label;
} else {
foreach ($label->childNodes as $child) {
if (property_exists($child, 'tagName') &&
($child->tagName == $this->tag) &&
(($child->getAttribute('type') == $this->type) || $this->notype)) {
$inputinlabel[$child->getAttribute('name')] = $child;
}
}
}
}
foreach ($this->get_all_elements($this->tag) as $input) {
if ($input->getAttribute('type') == $this->type || $this->notype) {
if (!$input->hasAttribute('title')) {
if (!isset($inputinlabel[$input->getAttribute('name')])) {
if (!isset($labels[$input->getAttribute('id')]) ||
(trim($labels[$input->getAttribute('id')]->nodeValue) == '')) {
$this->add_report($input);
}
}
}
}
}
}
}
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