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<?php
namespace Drupal\Core\Ajax;
/**
* An AJAX command for implementing jQuery's data() method.
*
* This instructs the client to attach the name=value pair of data to the
* selector via jQuery's data cache.
*
* This command is implemented by Drupal.AjaxCommands.prototype.data() defined
* in misc/ajax.js.
*
* @ingroup ajax
*/
class DataCommand implements CommandInterface {
/**
* A CSS selector string for elements to which data will be attached.
*
* If the command is a response to a request from an #ajax form element then
* this value can be NULL.
*
* @var string
*/
protected $selector;
/**
* The key of the data attached to elements matched by the selector.
*
* @var string
*/
protected $name;
/**
* The value of the data to be attached to elements matched by the selector.
*
* The data is not limited to strings; it can be any format.
*
* @var mixed
*/
protected $value;
/**
* Constructs a DataCommand object.
*
* @param string $selector
* A CSS selector for the elements to which the data will be attached.
* @param string $name
* The key of the data to be attached to elements matched by the selector.
* @param mixed $value
* The value of the data to be attached to elements matched by the selector.
*/
public function __construct($selector, $name, $value) {
$this->selector = $selector;
$this->name = $name;
$this->value = $value;
}
/**
* Implements Drupal\Core\Ajax\CommandInterface:render().
*/
public function render() {
return [
'command' => 'data',
'selector' => $this->selector,
'name' => $this->name,
'value' => $this->value,
];
}
}