| 1 |
efrain |
1 |
<?php
|
|
|
2 |
// This file is part of Moodle - http://moodle.org/
|
|
|
3 |
//
|
|
|
4 |
// Moodle is free software: you can redistribute it and/or modify
|
|
|
5 |
// it under the terms of the GNU General Public License as published by
|
|
|
6 |
// the Free Software Foundation, either version 3 of the License, or
|
|
|
7 |
// (at your option) any later version.
|
|
|
8 |
//
|
|
|
9 |
// Moodle is distributed in the hope that it will be useful,
|
|
|
10 |
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
|
11 |
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
|
12 |
// GNU General Public License for more details.
|
|
|
13 |
//
|
|
|
14 |
// You should have received a copy of the GNU General Public License
|
|
|
15 |
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
|
|
|
16 |
|
|
|
17 |
namespace tool_brickfield\local\htmlchecker\common\checks;
|
|
|
18 |
|
|
|
19 |
use tool_brickfield\local\htmlchecker\common\brickfield_accessibility_test;
|
|
|
20 |
|
|
|
21 |
/**
|
|
|
22 |
* Brickfield accessibility HTML checker library.
|
|
|
23 |
*
|
|
|
24 |
* Each source anchor contains text.
|
|
|
25 |
* a (anchor) element must contain text. The text may occur in the anchor text or in the title attribute of the anchor
|
|
|
26 |
* or in the Alt text of an image used within the anchor.
|
|
|
27 |
*
|
|
|
28 |
* @package tool_brickfield
|
|
|
29 |
* @copyright 2020 onward: Brickfield Education Labs, www.brickfield.ie
|
|
|
30 |
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
|
31 |
*/
|
|
|
32 |
class a_must_contain_text extends brickfield_accessibility_test {
|
|
|
33 |
/** @var int The default severity code for this test. */
|
|
|
34 |
public $defaultseverity = \tool_brickfield\local\htmlchecker\brickfield_accessibility::BA_TEST_SEVERE;
|
|
|
35 |
|
|
|
36 |
/**
|
|
|
37 |
* The main check function. This is called by the parent class to actually check content.
|
|
|
38 |
*/
|
|
|
39 |
public function check(): void {
|
|
|
40 |
foreach ($this->get_all_elements('a') as $a) {
|
|
|
41 |
if (!$this->element_contains_readable_text($a) && ($a->hasAttribute('href'))) {
|
|
|
42 |
$this->add_report($a);
|
|
|
43 |
}
|
|
|
44 |
}
|
|
|
45 |
}
|
|
|
46 |
|
|
|
47 |
/**
|
|
|
48 |
* Returns if a link is not a candidate to be an anchor (which does
|
|
|
49 |
* not need text).
|
|
|
50 |
* @param \DOMElement $a
|
|
|
51 |
* @return bool Whether is is a link (TRUE) or an anchor (FALSE)
|
|
|
52 |
*/
|
|
|
53 |
public function is_not_anchor(\DOMElement $a): bool {
|
|
|
54 |
return (!($a->hasAttribute('name') && !$a->hasAttribute('href')));
|
|
|
55 |
}
|
|
|
56 |
}
|