%PDF-
%PDF-
Mini Shell
Mini Shell
<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCA\Circles\Tools\Model;
class TreeNode {
/** @var self[] */
private $children = [];
/** @var self */
private $parent;
/** @var SimpleDataStore */
private $item;
/** @var self */
private $currentChild;
/** @var bool */
private $displayed = false;
/** @var bool */
private $splited = false;
/**
* NC22TreeNode constructor.
*
* @param self|null $parent
* @param SimpleDataStore $item
*/
public function __construct(?TreeNode $parent, SimpleDataStore $item) {
$this->parent = $parent;
$this->item = $item;
if ($this->parent !== null) {
$this->parent->addChild($this);
}
}
/**
* @return bool
*/
public function isRoot(): bool {
return (is_null($this->parent));
}
/**
* @param array $children
*
* @return TreeNode
*/
public function setChildren(array $children): self {
$this->children = $children;
return $this;
}
/**
* @param TreeNode $child
*
* @return $this
*/
public function addChild(TreeNode $child): self {
$this->children[] = $child;
return $this;
}
/**
* @return SimpleDataStore
*/
public function getItem(): SimpleDataStore {
$this->displayed = true;
return $this->item;
}
/**
* @return TreeNode
*/
public function getParent(): TreeNode {
return $this->parent;
}
/**
* @return $this
*/
public function getRoot(): TreeNode {
if ($this->isRoot()) {
return $this;
}
return $this->getParent()->getRoot();
}
/**
* @return TreeNode[]
*/
public function getPath(): array {
if ($this->isRoot()) {
return [$this];
}
return array_merge($this->parent->getPath(), [$this]);
}
/**
* @return int
*/
public function getLevel(): int {
if ($this->isRoot()) {
return 0;
}
return $this->getParent()->getLevel() + 1;
}
/**
* @return TreeNode|null
*/
public function current(): ?TreeNode {
if (!$this->isDisplayed()) {
return $this;
}
$this->splited = true;
if ($this->initCurrentChild()) {
$next = $this->getCurrentChild()->current();
if (!is_null($next)) {
return $next;
}
}
if (!$this->haveNext()) {
return null;
}
return $this->next();
}
/**
* @return TreeNode
*/
private function next(): TreeNode {
$this->currentChild = array_shift($this->children);
return $this->currentChild;
}
/**
* @return bool
*/
public function haveNext(): bool {
return !empty($this->children);
}
/**
* @return bool
*/
private function initCurrentChild(): bool {
if (is_null($this->currentChild)) {
if (!$this->haveNext()) {
return false;
}
$this->next();
}
return true;
}
/**
* @return TreeNode|null
*/
private function getCurrentChild(): ?TreeNode {
return $this->currentChild;
}
/**
* @return bool
*/
private function isDisplayed(): bool {
return $this->displayed;
}
/**
* @return bool
*/
public function isSplited(): bool {
return $this->splited;
}
}
Zerion Mini Shell 1.0