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103 lines
4.0 KiB
103 lines
4.0 KiB
<?php
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/** @license MIT
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* Copyright 2017 , Dustin Wilson, J. King et al.
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* See LICENSE and AUTHORS files for details */
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declare(strict_types=1);
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namespace MensBeam\HTML;
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// Node in the DOM spec is dirty. Many nodes which inherit from it inherit
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// methods it cannot use which all check for this and throw exceptions. This is
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// for nodes which DO have child nodes.
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trait ContainerNode {
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use Node;
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public function appendChild($node) {
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$this->preInsertionValidity($node);
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$result = parent::appendChild($node);
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if ($result !== false && $result instanceof TemplateElement) {
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if ($result instanceof TemplateElement) {
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ElementMap::set($result);
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}
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}
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return $result;
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}
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public function insertBefore($node, $child = null) {
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$this->preInsertionValidity($node, $child);
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$result = parent::insertBefore($node, $child);
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if ($result !== false) {
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if ($result instanceof TemplateElement) {
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ElementMap::set($result);
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}
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if ($child instanceof TemplateElement) {
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ElementMap::delete($child);
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}
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}
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return $result;
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}
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public function removeChild($child) {
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$result = parent::removeChild($child);
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if ($result !== false && $result instanceof TemplateElement) {
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ElementMap::delete($child);
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}
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return $result;
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}
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public function replaceChild($node, $child) {
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$result = parent::replaceChild($node, $child);
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if ($result !== false) {
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if ($result instanceof TemplateElement) {
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ElementMap::set($child);
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}
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if ($child instanceof TemplateElement) {
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ElementMap::delete($child);
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}
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}
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return $result;
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}
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protected function preInsertionValidity(\DOMNode $node, ?\DOMNode $child = null) {
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// "parent" in the spec comments below is $this
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# 1. If parent is not a Document, DocumentFragment, or Element node, then throw
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# a "HierarchyRequestError" DOMException.
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// Not necessary because they've been disabled and return hierarchy request
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// errors in "leaf nodes".
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# 2. If node is a host-including inclusive ancestor of parent, then throw a
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# "HierarchyRequestError" DOMException.
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#
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# An object A is a host-including inclusive ancestor of an object B, if either
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# A is an inclusive ancestor of B, or if B’s root has a non-null host and A is a
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# host-including inclusive ancestor of B’s root’s host.
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// DEVIATION: The baseline for this library is PHP 7.1, and without
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// WeakReferences we cannot add a host property to DocumentFragment to check
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// against.
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// This is handled just fine by PHP's DOM.
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# 3. If child is non-null and its parent is not parent, then throw a
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# "NotFoundError" DOMException.
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// This is handled just fine by PHP's DOM.
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# 4. If node is not a DocumentFragment, DocumentType, Element, Text,
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# ProcessingInstruction, or Comment node, then throw a "HierarchyRequestError"
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# DOMException.
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if (!$node instanceof DocumentFragment && !$node instanceof \DOMDocumentType && !$node instanceof Element && !$node instanceof Text && !$node instanceof ProcessingInstruction && !$node instanceof Comment) {
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throw new DOMException(DOMException::HIERARCHY_REQUEST_ERROR);
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}
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# 5. If either node is a Text node and parent is a document, or node is a
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# doctype and parent is not a document, then throw a "HierarchyRequestError"
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# DOMException.
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// Not necessary because they've been disabled and return hierarchy request
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// errors in "leaf nodes".
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# 6. If parent is a document, and any of the statements below, switched on node,
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# are true, then throw a "HierarchyRequestError" DOMException.
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// Handled by the Document class.
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}
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}
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