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<?php
namespace fivefilters\Readability\Nodes\DOM;
/**
* Class DOMNodeList.
*
* This is a fake DOMNodeList class that allows adding items to the list. The original class is static and the nodes
* are defined automagically when instantiating it. This fake version behaves exactly the same way but adds the function
* add() that allows to insert new DOMNodes into the DOMNodeList.
*
* It cannot extend the original DOMNodeList class because the functionality behind the property ->length is hidden
* from the user and cannot be extended, changed, or tweaked.
*/
class DOMNodeList implements \Countable, \IteratorAggregate
{
/**
* @var array
*/
protected $items = [];
/**
* @var int
*/
protected $length = 0;
/**
* To allow access to length in the same way that DOMNodeList allows.
*
* {@inheritdoc}
*/
public function __get($name)
{
switch ($name) {
case 'length':
return $this->length;
default:
trigger_error(sprintf('Undefined property: %s::%s', static::class, $name));
}
}
/**
* @param DOMNode|DOMElement|DOMComment $node
*
* @return DOMNodeList
*/
public function add($node)
{
$this->items[] = $node;
$this->length++;
return $this;
}
/**
* @param int $offset
*
* @return DOMNode|DOMElement|DOMComment
*/
public function item(int $offset)
{
return $this->items[$offset];
}
/**
* @return int|void
*/
public function count(): int
{
return $this->length;
}
/**
* To make it compatible with iterator_to_array() function.
*
* {@inheritdoc}
*/
public function getIterator(): \ArrayIterator
{
return new \ArrayIterator($this->items);
}
}
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