/**
* 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;
}
/**
* Is the next thing an element?
*
* The following example is an element:
* ```
* div.my-class[title = hello]:nth-child(1)
* ```
*
* In the above example, 'div' is the tag name
* and the following strings are filters:
* ```
* .my-class // a class filter
* [title = hello] // an attribute filter
* :nth-child(1) // a pseudo filter
* ```
*
* @return false|CssParserModelElement
*/
protected function element()
{
$element = null;
$filter = null;
$tagName = "*";
// ignores left spaces
$this->match("\\s+");
if ((list($name) = $this->eq("*")) || (list($name) = $this->is("identifier"))) {
$tagName = $name ? $name : "*";
} elseif (!($filter = $this->is("filter"))) {
return false;
}
$element = new CssParserModelElement($tagName);
// first filter
if ($filter) {
$element->addFilter($filter);
}
// additional filters
while ($filter = $this->is("filter")) {
$element->addFilter($filter);
}
return $element;
}