Current File : /var/www/pn/utils/vendor/imangazaliev/didom/src/DiDom/ClassAttribute.php
<?php
namespace DiDom;
use InvalidArgumentException;
class ClassAttribute
{
/**
* The DOM element instance.
*
* @var Element
*/
protected $element;
/**
* @var string
*/
protected $classesString = '';
/**
* @var string[]
*/
protected $classes = [];
/**
* @param Element $element
*
* @throws InvalidArgumentException if parameter 1 is not an element node
*/
public function __construct(Element $element)
{
if ( ! $element->isElementNode()) {
throw new InvalidArgumentException(sprintf('The element must contain DOMElement node'));
}
$this->element = $element;
$this->parseClassAttribute();
}
/**
* Parses class attribute of the element.
*/
protected function parseClassAttribute()
{
if ( ! $this->element->hasAttribute('class')) {
// possible if class attribute has been removed
if ($this->classesString !== '') {
$this->classesString = '';
$this->classes = [];
}
return;
}
// if class attribute is not changed
if ($this->element->getAttribute('class') === $this->classesString) {
return;
}
// save class attribute as is (without trimming)
$this->classesString = $this->element->getAttribute('class');
$classesString = trim($this->classesString);
if ($classesString === '') {
$this->classes = [];
return;
}
$classes = explode(' ', $classesString);
$classes = array_map('trim', $classes);
$classes = array_filter($classes);
$classes = array_unique($classes);
$this->classes = array_values($classes);
}
/**
* Updates class attribute of the element.
*/
protected function updateClassAttribute()
{
$this->classesString = implode(' ', $this->classes);
$this->element->setAttribute('class', $this->classesString);
}
/**
* @param string $className
*
* @return ClassAttribute
*
* @throws InvalidArgumentException if class name is not a string
*/
public function add($className)
{
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('%s expects parameter 1 to be string, %s given', __METHOD__, (is_object($className) ? get_class($className) : gettype($className))));
}
$this->parseClassAttribute();
if (in_array($className, $this->classes, true)) {
return $this;
}
$this->classes[] = $className;
$this->updateClassAttribute();
return $this;
}
/**
* @param array $classNames
*
* @return ClassAttribute
*
* @throws InvalidArgumentException if class name is not a string
*/
public function addMultiple(array $classNames)
{
$this->parseClassAttribute();
foreach ($classNames as $className) {
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('Class name must be a string, %s given', (is_object($className) ? get_class($className) : gettype($className))));
}
if (in_array($className, $this->classes, true)) {
continue;
}
$this->classes[] = $className;
}
$this->updateClassAttribute();
return $this;
}
/**
* @return string[]
*/
public function getAll()
{
$this->parseClassAttribute();
return $this->classes;
}
/**
* @param string $className
*
* @return bool
*/
public function contains($className)
{
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('%s expects parameter 1 to be string, %s given', __METHOD__, (is_object($className) ? get_class($className) : gettype($className))));
}
$this->parseClassAttribute();
return in_array($className, $this->classes, true);
}
/**
* @param string $className
*
* @return ClassAttribute
*
* @throws InvalidArgumentException if class name is not a string
*/
public function remove($className)
{
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('%s expects parameter 1 to be string, %s given', __METHOD__, (is_object($className) ? get_class($className) : gettype($className))));
}
$this->parseClassAttribute();
$classIndex = array_search($className, $this->classes);
if ($classIndex === false) {
return $this;
}
unset($this->classes[$classIndex]);
$this->updateClassAttribute();
return $this;
}
/**
* @param array $classNames
*
* @return ClassAttribute
*
* @throws InvalidArgumentException if class name is not a string
*/
public function removeMultiple(array $classNames)
{
$this->parseClassAttribute();
foreach ($classNames as $className) {
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('Class name must be a string, %s given', (is_object($className) ? get_class($className) : gettype($className))));
}
$classIndex = array_search($className, $this->classes);
if ($classIndex === false) {
continue;
}
unset($this->classes[$classIndex]);
}
$this->updateClassAttribute();
return $this;
}
/**
* @param string[] $exclusions
*
* @return ClassAttribute
*/
public function removeAll(array $exclusions = [])
{
$this->parseClassAttribute();
$preservedClasses = [];
foreach ($exclusions as $className) {
if ( ! is_string($className)) {
throw new InvalidArgumentException(sprintf('Class name must be a string, %s given', (is_object($className) ? get_class($className) : gettype($className))));
}
if ( ! in_array($className, $this->classes, true)) {
continue;
}
$preservedClasses[] = $className;
}
$this->classes = $preservedClasses;
$this->updateClassAttribute();
return $this;
}
/**
* @return Element
*/
public function getElement()
{
return $this->element;
}
}
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