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<?php
namespace Drupal\Core\Ajax;
/**
* AJAX command for invoking an arbitrary jQuery method.
*
* The 'invoke' command will instruct the client to invoke the given jQuery
* method with the supplied arguments on the elements matched by the given
* selector. Intended for simple jQuery commands, such as attr(), addClass(),
* removeClass(), toggleClass(), etc.
*
* This command is implemented by Drupal.AjaxCommands.prototype.invoke()
* defined in misc/ajax.js.
*
* @ingroup ajax
*/
class InvokeCommand 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;
/**
* A jQuery method to invoke.
*
* @var string
*/
protected $method;
/**
* An optional list of arguments to pass to the method.
*
* @var array
*/
protected $arguments;
/**
* Constructs an InvokeCommand object.
*
* @param string $selector
* A jQuery selector.
* @param string $method
* The name of a jQuery method to invoke.
* @param array $arguments
* An optional array of arguments to pass to the method.
*/
public function __construct($selector, $method, array $arguments = []) {
$this->selector = $selector;
$this->method = $method;
$this->arguments = $arguments;
}
/**
* Implements Drupal\Core\Ajax\CommandInterface:render().
*/
public function render() {
return [
'command' => 'invoke',
'selector' => $this->selector,
'method' => $this->method,
'args' => $this->arguments,
];
}
}