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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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namespace tool_brickfield\local\htmlchecker\common;
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/**
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* Base test class for tests which checks that the given input tag has an associated lable tag.
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*
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* @package tool_brickfield
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* @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class input_has_label extends brickfield_accessibility_test {
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// To override, just override the tag and type variables, and use $no_type = true if it is a special form tag like textarea.
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/** @var string The tag name that this test applies to */
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public $tag = 'input';
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/** @var string The type of input tag this is */
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public $type = 'text';
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/** @var bool Wehether or not we should check the type attribute of the input tags */
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public $notype = false;
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/**
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* Iterate through all the elemetns using the $tag tagname and the $type attribute (if appropriate)
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* and then check it against a list of all LABEL tags.
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*/
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public function check() {
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foreach ($this->get_all_elements('label') as $label) {
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if ($label->hasAttribute('for')) {
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$labels[$label->getAttribute('for')] = $label;
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} else {
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foreach ($label->childNodes as $child) {
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if (property_exists($child, 'tagName') &&
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($child->tagName == $this->tag) &&
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(($child->getAttribute('type') == $this->type) || $this->notype)) {
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$inputinlabel[$child->getAttribute('name')] = $child;
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}
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}
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}
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}
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foreach ($this->get_all_elements($this->tag) as $input) {
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if ($input->getAttribute('type') == $this->type || $this->notype) {
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if (!$input->hasAttribute('title')) {
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if (!isset($inputinlabel[$input->getAttribute('name')])) {
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if (!isset($labels[$input->getAttribute('id')]) ||
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(trim($labels[$input->getAttribute('id')]->nodeValue) == '')) {
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$this->add_report($input);
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}
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}
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}
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}
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}
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}
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}
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