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<?php |
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namespace Xml\Impl\Instance; |
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use Xml\Instance\{ |
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DomElementInterface, |
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DomDocumentInterface |
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}; |
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use Xml\Impl\Util\XmlQName; |
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use Xml\Impl\Util\DomUtil; |
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use Xml\Exception\ModelException; |
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class DomDocumentImpl implements DomDocumentInterface |
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{ |
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public const GENERIC_NS_PREFIX = "ns"; |
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public const XMLNS_ATTRIBUTE_NS_URI = "http://www.w3.org/2000/xmlns/"; |
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private $document; |
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public function __construct(DomDocumentExt $document) |
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{ |
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$this->document = $document; |
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} |
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public function getDomSource(): DomDocumentExt |
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{ |
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return $this->document; |
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} |
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public function getRootElement(): ?DomElementInterface |
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{ |
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$documentElement = $this->document->documentElement; |
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if ($documentElement !== null) { |
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return new DomElementImpl($documentElement); |
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} else { |
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return null; |
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} |
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} |
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public function setRootElement(DomElementInterface $rootElement): void |
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{ |
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$documentElement = $this->document->documentElement; |
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$newDocumentElement = $rootElement->getElement(); |
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if ($documentElement !== null) { |
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$this->document->replaceChild($newDocumentElement, $documentElement); |
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} else { |
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$this->document->appendChild($newDocumentElement); |
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} |
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} |
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public function createElement(string $namespaceUri, string $localName): DomElementInterface |
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{ |
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$xmlQName = new XmlQName($this, null, $namespaceUri, $localName); |
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$element = $this->document->createElementNS($xmlQName->getNamespaceUri(), $xmlQName->getPrefixedName()); |
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return new DomElementImpl($element); |
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} |
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public function getElementById(string $id): ?DomElementInterface |
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{ |
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$element = $this->document->getElementById($id); |
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if ($element !== null) { |
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return new DomElementImpl($element); |
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} else { |
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return null; |
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} |
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} |
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public function getElementsByNameNs(string $namespaceUri, string $localName): array |
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{ |
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$elementsByTagNameNS = $this->document->getElementsByTagNameNS($namespaceUri, $localName); |
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return DomUtil::filterNodeListByName($elementsByTagNameNS, $namespaceUri, $localName); |
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} |
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public function registerNamespace(?string $prefix, string $namespaceUri): void |
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{ |
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$rootElement = $this->getRootElement(); |
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if ($rootElement !== null) { |
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$rootElement->registerNamespace($prefix, $namespaceUri); |
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} else { |
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throw new ModelException("Unable to define a new namespace without a root document element"); |
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} |
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} |
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public function getUnusedGenericNsPrefix(): string |
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{ |
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$documentElement = $this->document->documentElement; |
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if ($documentElement === null) { |
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return self::GENERIC_NS_PREFIX . "0"; |
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} else { |
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for ($i = 0; $i < PHP_INT_MAX; $i += 1) { |
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if (!$documentElement->hasAttributeNS(self::XMLNS_ATTRIBUTE_NS_URI, self::GENERIC_NS_PREFIX . $i)) { |
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return self::GENERIC_NS_PREFIX . $i; |
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} |
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} |
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return self::GENERIC_NS_PREFIX . "0"; |
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} |
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} |
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public function clone(): DomDocumentInterface |
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{ |
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$xml = $this->document->saveXML(); |
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$clone = new DomDocumentExt(); |
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$clone->loadXML($xml); |
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return new DomDocumentImpl($clone); |
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} |
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} |
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