<?php
/**
* This file contains the CssParserModelFactor class.
*
* PHP Version 5.3
*
* @category Css
* @package CssParser
* @author Gonzalo Chumillas <gonzalo@soloproyectos.com>
* @license https://raw2.github.com/soloproyectos/php.common-libs/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/php.common-libs
*/
namespace com\soloproyectos\common\css\parser\model;
use \DOMElement;
use com\soloproyectos\common\css\parser\combinator\CssParserCombinator;
use com\soloproyectos\common\css\parser\model\CssParserModelElement;
/**
* Class CssParserModelFactor.
*
* This class represents a factor in a CSS expression. A factor is composed a
* combinator and an element.
*
* @category Css
* @package CssParser
* @author Gonzalo Chumillas <gonzalo@soloproyectos.com>
* @license https://raw2.github.com/soloproyectos/php.common-libs/master/LICENSE BSD 2-Clause License
* @link https://github.com/soloproyectos/php.common-libs
*/
class CssParserModelFactor
{
const DESCENDANT_OPERATOR = "";
const CHILD_OPERATOR = ">";
const ADJACENT_OPERATOR = "+";
/**
* Combinator.
* @var string
*/
private $_combinator;
/**
* Element.
* @var CssParserModelElement
*/
private $_element;
/**
* Constructor.
*
* @param CssParserCombinator $combinator Combinator
* @param CssParserModelElement $element Element object
*/
public function __construct($combinator, $element)
{
$this->_combinator = $combinator;
$this->_element = $element;
}
/**
* Gets the element.
*
* @return CssParserModelElement
*/
public function getElement()
{
return $this->_element;
}
/**
* Gets the elements that matches the factor.
*
* @param DOMElement $node DOMElement object
*
* @return array of DOMElement
*/
public function filter($node)
{
$ret = array();
$items = $this->_combinator->filter($node, $this->_element->getTagName());
// filters items by element
foreach ($items as $item) {
if ($this->_element->match($item)) {
array_push($ret, $item);
}
}
// filter items by element filters
$filters = $this->_element->getFilters();
foreach ($filters as $filter) {
$items = array();
foreach ($ret as $i => $item) {
if ($filter->match($item, $i, $ret)) {
array_push($items, $item);
}
}
$ret = $items;
}
return $ret;
}
}
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