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<?php |
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/** |
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* Trait PrototypeTraversalTrait |
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* |
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* @filesource PrototypeTraversalTrait.php |
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* @created 06.05.2017 |
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* @package chillerlan\PrototypeDOM\Traits |
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* @author Smiley <[email protected]> |
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* @copyright 2017 Smiley |
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* @license MIT |
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* |
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* @noinspection PhpParamsInspection |
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* @noinspection PhpIncompatibleReturnTypeInspection |
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*/ |
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namespace chillerlan\PrototypeDOM\Node; |
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use chillerlan\PrototypeDOM\NodeList; |
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use DOMNode; |
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use function is_array, is_int, is_numeric; |
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use const XML_ELEMENT_NODE; |
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/** |
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* @property \chillerlan\PrototypeDOM\Document $ownerDocument |
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*/ |
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trait PrototypeTraversalTrait{ |
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use PrototypeNodeTrait; |
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/** |
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* @see https://secure.php.net/manual/dom.constants.php |
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* |
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* @return \chillerlan\PrototypeDOM\Node\PrototypeTraversal|\DOMNode|null |
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*/ |
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public function recursivelyFind(string $selector = null, int $index = null, string $property = null, int $nodeType = XML_ELEMENT_NODE):?PrototypeTraversal{ |
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if(is_numeric($selector)){ |
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return $this->ownerDocument->recursivelyFind($this, $property, null, $selector, $nodeType); |
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} |
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return $this->ownerDocument->recursivelyFind($this, $property, $selector, $index ?? 0, $nodeType); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function select(array $selectors = null):NodeList{ |
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return $this->ownerDocument->select($selectors, $this, 'descendant::'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function down($expression = null, int $index = null):?PrototypeTraversal{ |
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if($expression === null && $index === null){ |
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return $this->firstDescendant(); |
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} |
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$index = $index ?? 0; |
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if(is_int($expression)){ |
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return $this->select(['*'])->offsetGet($expression); |
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} |
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if(is_array($expression)){ |
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return $this->select($expression)->offsetGet($index); |
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} |
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return $this->select([$expression])->offsetGet($index); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function up($expression = null, int $index = null):?PrototypeTraversal{ |
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return $this->recursivelyFind($expression, $index, 'parentNode'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function previous($expression = null, int $index = null):?PrototypeTraversal{ |
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return $this->recursivelyFind($expression, $index, 'previousSibling'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function next($expression = null, int $index = null):?PrototypeTraversal{ |
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return $this->recursivelyFind($expression, $index, 'nextSibling'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function childElements(int $nodeType = null):NodeList{ |
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$nodeType = $nodeType ?? XML_ELEMENT_NODE; |
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$children = new NodeList; |
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if(!$this->hasChildNodes()){ |
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return $children; |
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} |
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foreach($this->childNodes as $child){ |
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if($child->nodeType === $nodeType){ |
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$children[] = $child; |
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} |
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} |
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return $children; |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function descendantOf(DOMNode $ancestor):bool{ |
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return $this->ancestors()->match($ancestor); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function ancestors():NodeList{ |
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return $this->recursivelyCollect('parentNode'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function siblings():NodeList{ |
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return $this->previousSiblings()->reverse()->merge($this->nextSiblings()); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function descendants():NodeList{ |
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return $this->select(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function firstDescendant():?PrototypeTraversal{ |
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return $this->descendants()->first(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function previousSiblings():NodeList{ |
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return $this->recursivelyCollect('previousSibling'); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function nextSiblings():NodeList{ |
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return $this->recursivelyCollect('nextSibling'); |
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} |
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} |
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chillerlan /
php-prototype-dom
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