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<?php
namespace Drupal\Core\Ajax;
/**
* An AJAX command for marking HTML elements as changed.
*
* This command instructs the client to mark each of the elements matched by the
* given selector as 'ajax-changed'.
*
* This command is implemented by Drupal.AjaxCommands.prototype.changed()
* defined in misc/ajax.js.
*
* @ingroup ajax
*/
class ChangedCommand implements CommandInterface {
/**
* A CSS selector string.
*
* If the command is a response to a request from an #ajax form element then
* this value can be NULL.
*
* @var string
*/
protected $selector;
/**
* An optional CSS selector for elements to which asterisks will be appended.
*
* @var string
*/
protected $asterisk;
/**
* Constructs a ChangedCommand object.
*
* @param string $selector
* CSS selector for elements to be marked as changed.
* @param string $asterisk
* CSS selector for elements to which an asterisk will be appended.
*/
public function __construct($selector, $asterisk = '') {
$this->selector = $selector;
$this->asterisk = $asterisk;
}
/**
* Implements Drupal\Core\Ajax\CommandInterface:render().
*/
public function render() {
return [
'command' => 'changed',
'selector' => $this->selector,
'asterisk' => $this->asterisk,
];
}
}