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<?php |
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namespace Sulao\HtmlQuery; |
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use DOMDocument, DOMNode; |
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/** |
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* Class HtmlDocument |
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* |
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* @package Sulao\HtmlQuery |
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*/ |
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class HtmlDocument |
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{ |
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/** |
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* @var DOMDocument |
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*/ |
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protected $doc; |
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/** |
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* HtmlDocument constructor. |
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* |
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* @param DOMDocument $doc |
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*/ |
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public function __construct(DOMDocument $doc) |
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{ |
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$this->doc = $doc; |
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} |
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/** |
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* Get DOMDocument |
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* |
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* @return DOMDocument |
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*/ |
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public function getDoc(): DOMDocument |
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{ |
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return $this->doc; |
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} |
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/** |
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* Get the outer HTML content. |
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* |
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* @return string|null |
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*/ |
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public function outerHtml() |
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{ |
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return $this->doc->saveHTML(); |
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} |
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/** |
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* Make the static object can be called as a function. |
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* |
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* @param string $selector |
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* |
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* @return HtmlQuery |
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*/ |
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public function __invoke(string $selector) |
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{ |
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return $this->query($selector); |
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} |
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/** |
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* If the parameter is raw html, then create document fragment for it, |
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* If the parameter is a css selector, get the descendants |
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* filtered by a css selector. |
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* |
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* @param string $selector css selector or raw html |
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* |
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* @return HtmlQuery |
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*/ |
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public function query(string $selector) |
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{ |
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if (Helper::isRawHtml($selector)) { |
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$frag = $this->doc->createDocumentFragment(); |
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$frag->appendXML($selector); |
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return $this->resolve($frag); |
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} |
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return $this->find($selector); |
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} |
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/** |
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* Get the descendants of document, filtered by a selector. |
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* |
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* @param string $selector |
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* |
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* @return HtmlQuery |
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*/ |
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public function find(string $selector) |
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{ |
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$nodes = Helper::xpathQuery( |
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Helper::toXpath($selector), |
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$this->doc, |
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$this->doc |
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); |
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if (Helper::isIdSelector($selector)) { |
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$nodes = $nodes ? $nodes[0] : []; |
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} |
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return $this->resolve($nodes); |
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} |
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/** |
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* Resolve nodes to HtmlQuery instance. |
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* |
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* @param DOMNode|DOMNode[] $nodes |
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* |
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* @return HtmlQuery |
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*/ |
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protected function resolve($nodes) |
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{ |
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return new HtmlQuery($this->doc, $nodes); |
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} |
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} |
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xinningsu /
html-query
