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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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use tool_brickfield\local\htmlchecker\brickfield_accessibility;
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/**
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* This is a helper class which organizes all the HTML tags into groups for finding.
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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 html_elements {
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/**
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* @var array An array of HTML tag names and their attributes
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*/
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public static $htmlelements = [
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'img' => ['text' => false],
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'p' => ['text' => true],
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'pre' => ['text' => true],
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'span' => ['text' => true],
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'div' => ['text' => true],
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'applet' => ['text' => false],
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'embed' => ['text' => false, 'media' => true],
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'object' => ['text' => false, 'media' => true],
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'area' => ['imagemap' => true],
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'b' => ['text' => true, 'non-emphasis' => true],
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'i' => ['text' => true, 'non-emphasis' => true],
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'font' => ['text' => true, 'font' => true],
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'h1' => ['text' => true, 'header' => true],
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'h2' => ['text' => true, 'header' => true],
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'h3' => ['text' => true, 'header' => true],
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'h4' => ['text' => true, 'header' => true],
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'h5' => ['text' => true, 'header' => true],
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'h6' => ['text' => true, 'header' => true],
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'ul' => ['text' => true, 'list' => true],
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'dl' => ['text' => true, 'list' => true],
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'ol' => ['text' => true, 'list' => true],
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'blockquote' => ['text' => true, 'quote' => true],
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'q' => ['text' => true, 'quote' => true],
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'acronym' => ['acronym' => true, 'text' => true],
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'abbr' => ['acronym' => true, 'text' => true],
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'input' => ['form' => true],
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'select' => ['form' => true],
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'textarea' => ['form' => true],
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brickfield_accessibility::BA_ERROR_TAG => ['text' => true],
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];
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/**
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* Retrieves elements by an option.
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* @param string $option The option to search fore
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* @param bool $value Whether the option should be true or false
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* @return array An array of HTML tag names
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*/
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public static function get_elements_by_option(string $option, bool $value = true): array {
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$results = [];
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foreach (self::$htmlelements as $k => $element) {
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if (isset($element[$option]) && ($element[$option] == $value)) {
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$results[] = $k;
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}
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}
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return $results;
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}
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}
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