LoadedExtensionsArray.php

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<?php
namespace ‪TYPO3\CMS\Core\Compatibility;
 
/*
 * 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!
 */
 
class ‪LoadedExtensionsArray implements \Iterator, \ArrayAccess, \Serializable, \Countable
{
    protected ‪$packageManager;
 
    protected ‪$loadedExtensionArrayElementCache = [];
 
    protected ‪$iteratorPosition;
 
    public function ‪__construct(\‪TYPO3\CMS\Core\Package\PackageManager ‪$packageManager)
    {
        $this->packageManager = ‪$packageManager;
    }
 
    public function ‪offsetExists($offset)
    {
        return $this->packageManager->isPackageActive($offset);
    }
 
    public function ‪offsetGet($offset)
    {
        // Pass it through the package manager, as it resolves package aliases
        $package = $this->packageManager->getPackage($offset);
        $packageKey = $package->getPackageKey();
        if (!isset($this->loadedExtensionArrayElementCache[$packageKey])) {
            $this->loadedExtensionArrayElementCache[$packageKey] = new ‪LoadedExtensionArrayElement($package);
        }
        return $this->loadedExtensionArrayElementCache[$packageKey];
    }
 
    public function ‪offsetSet($offset, $value)
    {
        throw new \InvalidArgumentException('The array $GLOBALS[\'TYPO3_LOADED_EXT\'] may not be modified.', 1361915596);
    }
 
    public function ‪offsetUnset($offset)
    {
        throw new \InvalidArgumentException('The array $GLOBALS[\'TYPO3_LOADED_EXT\'] may not be modified.', 1361915610);
    }
 
    public function ‪serialize()
    {
        return ‪serialize($this->loadedExtensionArrayElementCache);
    }
 
    public function ‪unserialize($serialized)
    {
        $this->loadedExtensionArrayElementCache = ‪unserialize($serialized);
    }
 
    public function ‪count()
    {
        return ‪count($this->packageManager->getActivePackages());
    }
 
    public function ‪current()
    {
        return $this->‪offsetGet($this->iteratorPosition);
    }
 
    public function ‪next()
    {
        $packageKeys = array_keys($this->packageManager->getActivePackages());
        $position = array_search($this->iteratorPosition, $packageKeys);
        if (isset($packageKeys[$position + 1])) {
            $this->iteratorPosition = $packageKeys[$position + 1];
        } else {
            $this->iteratorPosition = null;
        }
    }
 
    public function ‪key()
    {
        return ‪$this->iteratorPosition;
    }
 
    public function ‪valid()
    {
        return $this->‪offsetExists($this->iteratorPosition);
    }
 
    public function ‪rewind()
    {
        $keys = array_keys($this->packageManager->getActivePackages());
        $this->iteratorPosition = array_shift($keys);
    }
 
    public function ‪reset()
    {
        $this->loadedExtensionArrayElementCache = [];
        $this->‪rewind();
    }
 
    public function ‪hasPackageManager()
    {
        return $this->packageManager !== null;
    }
 
    public function ‪toArray()
    {
        return array_map(
            function ($loadedExtElement) {
                return $loadedExtElement->toArray();
            },
            iterator_to_array($this)
        );
    }
}