class InvokeCommand in Drupal 10

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.

Hierarchy

• class \Drupal\Core\Ajax\InvokeCommand implements \Drupal\Core\Ajax\CommandInterface

Related topics

Ajax API

Overview for Drupal's Ajax API.

6 files declare their use of InvokeCommand

AddFormBase.php in core/modules/media_library/src/Form/AddFormBase.php

AjaxCommandsTest.php in core/tests/Drupal/Tests/Core/Ajax/AjaxCommandsTest.php

ajax_forms_test.module in core/modules/system/tests/modules/ajax_forms_test/ajax_forms_test.module

Mock module for Ajax forms testing.

ckeditor5.module in core/modules/ckeditor5/ckeditor5.module

MediaLibraryFieldWidgetOpener.php in core/modules/media_library/src/MediaLibraryFieldWidgetOpener.php

... See full list

File

core/lib/Drupal/Core/Ajax/InvokeCommand.php, line 18

Namespace

Drupal\Core\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,
    ];
  }

}