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<?php
namespace Bitrix\Main\Web\DOM;
class Document extends Node
{
/** @var $parser Parser */
protected $parser;
/** @var $queryEngine QueryEngine */
protected $queryEngine;
/*
* @return void
*/
public function __construct()
{
$this->init();
$this->nodeType = self::DOCUMENT_NODE;
$this->nodeName = '#document';
$this->ownerDocument = $this;
$this->setParser(Parser::getHtmlParser());
}
/*
* @param string $source
* @return void
*/
public function loadHTML($source)
{
$this->parser->parse($source, $this);
}
/*
* @param null|Node $node
* @return string
*/
public function saveHTML(Node $node = null)
{
if($node === null)
{
$result = '';
if(self::$isNodeListAsArray)
{
$childNodes = $this->getChildNodesArray();
foreach ($childNodes as $child)
{
/** @var $child Node */
$result .= $child->getOuterHTML();
}
}
else
{
for($i = 0; $i < $this->getChildNodes()->getLength(); $i++)
{
$child = $this->getChildNodes()->item($i);
/** @var $child Node */
if($child)
{
$result .= $child->getOuterHTML();
}
}
}
return $result;
}
else
{
return $node->getOuterHTML();
}
}
/*
* @return QueryEngine
*/
public function getQueryEngine()
{
if(!$this->queryEngine)
{
$this->queryEngine = QueryEngine::getQuerySelectorEngine();
}
return $this->queryEngine;
}
/*
* @param QueryEngine $engine
* @return void
*/
public function setQueryEngine(QueryEngine $engine)
{
$this->queryEngine = $engine;
}
/*
* @return Parser
*/
public function getParser()
{
return $this->parser;
}
/*
* @param Parser $parser
* @return void
*/
public function setParser(Parser $parser)
{
$this->parser = $parser;
}
/*
* Changes the ownerDocument of a node, its children, as well as the attached attribute nodes if there are any.
* If the node has a parent it is first removed from its parent child list.
* This effectively allows moving a subtree from one document to another.
*/
public function adoptNode(Node $source)
{
if($source->getParentNode())
{
$source->getParentNode()->removeChild($source);
}
$source->setOwnerDocument($this);
if($source->hasAttributes())
{
$attrList = $source->getAttributes()->get();
foreach($attrList as $attr)
{
/** @var $attr Attr */
$attr->setOwnerDocument($this);
}
}
if($source->hasChildNodes())
{
foreach($source->getChildNodesArray() as $child)
{
/** @var $child Node */
$child->setOwnerDocument($this);
}
}
}
/*
* @param string $tagName
* @return Element
*/
public function createElement($tagName)
{
static $classByTag = array();
$tagName = mb_strtoupper($tagName);
$elementClass = "Bitrix\\Main\\Web\\DOM\\Element\\" . $tagName;
if(!isset($classByTag[$tagName]))
{
if(class_exists($elementClass))
{
$classByTag[$tagName] = $elementClass;
}
else
{
$classByTag[$tagName] = false;
}
}
if($classByTag[$tagName])
{
$elementClass = $classByTag[$tagName];
$node = new $elementClass($tagName);
}
else
{
$node = new Element($tagName);
}
$node->setOwnerDocument($this);
return $node;
}
/*
* @param string $name
* @param string $value
* @return Attr
*/
public function createAttribute($name, $value)
{
$node = new Attr($name, $value);
$node->setOwnerDocument($this);
return $node;
}
/*
* @param string $comment
* @return Comment
*/
public function createComment($comment)
{
$node = new Comment($comment);
$node->setOwnerDocument($this);
return $node;
}
/*
* @param string $text
* @return Text
*/
public function createTextNode($text)
{
$node = new Text($text);
$node->setOwnerDocument($this);
return $node;
}
/*
* @return null
*/
public function createDocumentFragment()
{
throw new DomException('Not implemented');
}
/*
* @return null|Node
*/
public function getElementById($id)
{
$resultList = $this->getElementsByAttr('id', $id, 1);
return (!empty($resultList)) ? current($resultList) : null;
}
/*
* @return null|Node
*/
public function getElementByClassName($className)
{
$resultList = $this->getElementsByClassName($className, 1);
return (!empty($resultList)) ? current($resultList) : null;
}
/*
* @return array|NodeList
*/
public function getElementsByName($name)
{
return $this->getElementsByAttr('name', $name);
}
public function getTextContent()
{
return null;
}
/*
* @return array|NodeList
*/
public function getElementsByAttr($attrName, $attrValue = null, $limit = 0)
{
$attrName = mb_strtolower($attrName);
$nodeList = $this->getQueryEngine()->walk(
array(
array(
QueryEngine::FILTER_ATTR_VALUE => array(
array(
'name' => $attrName,
'value' => $attrValue,
'operation' => QueryEngine::FILTER_OPERATION_EQUAL,
)
)
)
),
null, $this, $limit
);
if(Node::$isNodeListAsArray)
{
return $nodeList;
}
else
{
return new NodeList($nodeList);
}
}
/*
* @return array|NodeList
*/
public function getElementsByTagName($tagName)
{
$tagName = mb_strtoupper($tagName);
$nodeList = $this->getQueryEngine()->walk(
array(
array(QueryEngine::FILTER_NODE_NAME => $tagName)
),
null, $this
);
if(Node::$isNodeListAsArray)
{
return $nodeList;
}
else
{
return new NodeList($nodeList);
}
}
/*
* @return array|NodeList
*/
public function getElementsByClassName($className, $limit = 0)
{
$nodeList = $this->getQueryEngine()->walk(
array(
array(QueryEngine::FILTER_ATTR_CLASS_NAME => $className)
),
null, $this, $limit
);
if(Node::$isNodeListAsArray)
{
return $nodeList;
}
else
{
return new NodeList($nodeList);
}
}
/*
* @return null|Element
*/
public function getDocumentElement()
{
foreach($this->getChildNodesArray() as $child)
{
/** @var $child Node */
if($child->getNodeName() === 'HTML')
{
return $child;
}
}
return null;
}
/*
* Get HEAD element
* @return null|Element
*/
public function getHead()
{
if(!$this->getDocumentElement())
{
return null;
}
foreach($this->getDocumentElement()->getChildNodesArray() as $child)
{
/** @var $child Node */
if($child->getNodeName() === 'HEAD')
{
return $child;
}
}
return null;
}
/*
* Get BODY element
* @return null|Element
*/
public function getBody()
{
if(!$this->getDocumentElement())
{
return null;
}
foreach($this->getDocumentElement()->getChildNodesArray() as $child)
{
/** @var $child Node */
if($child->getNodeName() === 'BODY')
{
return $child;
}
}
return null;
}
}