9.5/workspaces_2_classes_2_dependency_2_dependency_resolver_8php_source.html

<?php

namespace ‪TYPO3\CMS\Workspaces\Dependency;


/*

 * 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!

 */


use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪DependencyResolver

{

    protected ‪$workspace = 0;


    protected ‪$factory;


    protected ‪$elements = [];


    protected ‪$eventCallbacks = [];


    protected ‪$outerMostParentsRequireReferences = false;


    protected ‪$outerMostParents;


    public function ‪setWorkspace(‪$workspace)

    {

        $this->workspace = (int)‪$workspace;

    }


    public function ‪getWorkspace()

    {

        return ‪$this->workspace;

    }


    public function ‪setEventCallback($eventName, ‪EventCallback $callback)

    {

        $this->eventCallbacks[$eventName] = $callback;

        return $this;

    }


    public function ‪executeEventCallback($eventName, $caller, array $callerArguments = [])

    {

        if (isset($this->eventCallbacks[$eventName])) {

            $callback = $this->eventCallbacks[$eventName];

            return $callback->execute($callerArguments, $caller, $eventName);

        }

        return null;

    }


    public function ‪setOuterMostParentsRequireReferences(‪$outerMostParentsRequireReferences)

    {

        $this->outerMostParentsRequireReferences = (bool)‪$outerMostParentsRequireReferences;

        return $this;

    }


    public function ‪addElement($table, $id, array $data = [])

    {

        $element = $this->‪getFactory()->‪getElement($table, $id, $data, $this);

        $elementName = $element->‪__toString();

        $this->elements[$elementName] = $element;

        return $element;

    }


    public function ‪getOuterMostParents()

    {

        if (!isset($this->outerMostParents)) {

            $this->outerMostParents = [];

            foreach ($this->elements as $element) {

                $this->‪processOuterMostParent($element);

            }

        }

        return ‪$this->outerMostParents;

    }


    protected function ‪processOuterMostParent(‪ElementEntity $element)

    {

        if ($this->outerMostParentsRequireReferences === false || $element->‪hasReferences()) {

            $outerMostParent = $element->‪getOuterMostParent();

            if ($outerMostParent !== false) {

                $outerMostParentName = $outerMostParent->‪__toString();

                if (!isset($this->outerMostParents[$outerMostParentName])) {

                    $this->outerMostParents[$outerMostParentName] = $outerMostParent;

                }

            }

        }

    }


    public function ‪getNestedElements(‪ElementEntity $outerMostParent)

    {

        $outerMostParentName = $outerMostParent->‪__toString();

        if (!isset($this->outerMostParents[$outerMostParentName])) {

            throw new \RuntimeException('Element "' . $outerMostParentName . '" was not detected as outermost parent.', 1289318609);

        }

        $nestedStructure = array_merge([$outerMostParentName => $outerMostParent], $outerMostParent->‪getNestedChildren());

        return $nestedStructure;

    }


    public function ‪getElements()

    {

        return ‪$this->elements;

    }


    public function ‪getFactory()

    {

        if (!isset($this->factory)) {

            $this->factory = GeneralUtility::makeInstance(DependencyEntityFactory::class);

        }

        return ‪$this->factory;

    }

}