JsConfirmation.php

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<?php
 
/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */
 
namespace ‪TYPO3\CMS\Core\Type\Bitmask;
 
use ‪TYPO3\CMS\Core\Type\Enumeration;
use ‪TYPO3\CMS\Core\Type\Exception;
 
final class ‪JsConfirmation extends ‪Enumeration
{
    const ‪TYPE_CHANGE = 0b00000001;
 
    const ‪COPY_MOVE_PASTE = 0b00000010;
 
    const ‪DELETE = 0b00000100;
 
    const ‪FE_EDIT = 0b00001000;
 
    const ‪OTHER = 0b10000000;
 
    const ‪ALL = 255;
 
    const ‪__default = ‪self::ALL;
 
    protected static ‪$allowedValues = self::TYPE_CHANGE | self::COPY_MOVE_PASTE | self::DELETE | self::FE_EDIT | ‪self::OTHER;
 
    public function ‪matches(‪JsConfirmation ‪$value)
    {
        ‪$value = (int)(string)‪$value;
        $thisValue = (int)(string)$this;
 
        return (‪$value & $thisValue) == $thisValue;
    }
 
    protected function ‪setValue(‪$value)
    {
        if ($this->‪isValid(‪$value)) {
            $this->value = ‪$value;
        } else {
            parent::setValue(‪$value);
        }
    }
 
    protected function ‪isValid(‪$value)
    {
        if (‪$value < 255) {
            // Check for combined bitmask or bitmask with bits unset from self::ALL
            $unsetValues = (self::ALL ^ ‪$value);
            return (‪$value & self::$allowedValues) === ‪$value || $unsetValues === ($unsetValues & ‪self::$allowedValues);
        }
        return parent::isValid(‪$value);
    }
}