103 lines
3.2 KiB
PHP
103 lines
3.2 KiB
PHP
<?php
|
|
// {{{ License
|
|
// This file is part of GNU social - https://www.gnu.org/software/soci
|
|
//
|
|
// GNU social is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// GNU social 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 Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with GNU social. If not, see <http://www.gnu.org/licenses/>.
|
|
// }}}
|
|
|
|
namespace App\Util;
|
|
|
|
use Functional as F;
|
|
|
|
/**
|
|
* HTML Abstraction
|
|
*
|
|
* @author Hugo Sales <hugo@fc.up.pt>
|
|
* @copyright 2020 Free Software Foundation, Inc http://www.fsf.org
|
|
* @license https://www.gnu.org/licenses/agpl.html GNU AGPL v3 or later
|
|
*/
|
|
abstract class HTML
|
|
{
|
|
/**
|
|
* Creates an HTML tag without attributes
|
|
*
|
|
* @param string $tag
|
|
* @param array|string $content
|
|
* @param bool $empty_tag
|
|
* @return array
|
|
*/
|
|
private static function tag(string $tag, $content = '', bool $empty_tag = false): array
|
|
{
|
|
return self::attr_tag($tag, '', $content);
|
|
}
|
|
|
|
/**
|
|
* Create tag, possibly with attributes and indentation
|
|
*
|
|
* @param string $tag
|
|
* @param array|string $attrs - element attributes
|
|
* @param array|string $content - what goes inside the tag
|
|
* @param bool $empty_tag
|
|
* @return array
|
|
*/
|
|
private static function attr_tag(string $tag, $attrs, $content = '', bool $empty_tag = false): array
|
|
{
|
|
$html = '<' . $tag . (is_string($attrs) ? ($attrs ? ' ' : '') . $attrs : self::attr($attrs));
|
|
if (empty($content) || $empty_tag) {
|
|
$html .= '>';
|
|
} else {
|
|
$html .= ">\n" . Common::indent($content) . "\n" . Common::indent("</{$tag}>");
|
|
}
|
|
return explode("\n", $html);
|
|
}
|
|
|
|
/**
|
|
* Attribute with given optional value
|
|
*
|
|
* @param array $attrs
|
|
* @return string
|
|
*/
|
|
private static function attr(array $attrs): string
|
|
{
|
|
return ' ' . implode(' ', F\map($attrs, function ($val, $key, $_) { return "{$key} = '{$val}'"; }));
|
|
}
|
|
|
|
/**
|
|
* @param $html
|
|
* @return string
|
|
*/
|
|
public static function html($html): string
|
|
{
|
|
if (is_string($html)) {
|
|
return $html;
|
|
} elseif (is_array($html)) {
|
|
$out = '';
|
|
foreach ($html as $tag => $contents) {
|
|
if (isset($contents['empty'])) {
|
|
$out .= "<{$tag}>";
|
|
} else {
|
|
$attrs = isset($contents['attrs']) ? self::attr(array_shift($contents)) : '';
|
|
$is_tag = preg_match('/[A-Za-z][A-Za-z0-9]*/', $tag);
|
|
$inner = self::html($contents);
|
|
$inner = $is_tag ? Common::indent($inner) : $inner;
|
|
$out .= $is_tag ? "<{$tag}{$attrs}>\n{$inner}\n</{$tag}>\n" : $inner;
|
|
}
|
|
}
|
|
return $out;
|
|
} else {
|
|
return '';
|
|
}
|
|
}
|
|
}
|